diff --git a/contrib/sdk/sources/ffmpeg/doc/ffmpeg-bitstream-filters.1 b/contrib/sdk/sources/ffmpeg/doc/ffmpeg-bitstream-filters.1
deleted file mode 100644
index 63217671c3..0000000000
--- a/contrib/sdk/sources/ffmpeg/doc/ffmpeg-bitstream-filters.1
+++ /dev/null
@@ -1,275 +0,0 @@
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-.rm #[ #] #H #V #F C
-.\" ========================================================================
-.\"
-.IX Title "FFMPEG-BITSTREAM-FILTERS 1"
-.TH FFMPEG-BITSTREAM-FILTERS 1 "2013-12-14" " " " "
-.SH "NAME"
-ffmpeg\-bitstream\-filters \- FFmpeg bitstream filters
-.SH "DESCRIPTION"
-.IX Header "DESCRIPTION"
-This document describes the bitstream filters provided by the
-libavcodec library.
-.PP
-A bitstream filter operates on the encoded stream data, and performs
-bitstream level modifications without performing decoding.
-.SH "BITSTREAM FILTERS"
-.IX Header "BITSTREAM FILTERS"
-When you configure your FFmpeg build, all the supported bitstream
-filters are enabled by default. You can list all available ones using
-the configure option \f(CW\*(C`\-\-list\-bsfs\*(C'\fR.
-.PP
-You can disable all the bitstream filters using the configure option
-\&\f(CW\*(C`\-\-disable\-bsfs\*(C'\fR, and selectively enable any bitstream filter using
-the option \f(CW\*(C`\-\-enable\-bsf=BSF\*(C'\fR, or you can disable a particular
-bitstream filter using the option \f(CW\*(C`\-\-disable\-bsf=BSF\*(C'\fR.
-.PP
-The option \f(CW\*(C`\-bsfs\*(C'\fR of the ff* tools will display the list of
-all the supported bitstream filters included in your build.
-.PP
-Below is a description of the currently available bitstream filters.
-.Sh "aac_adtstoasc"
-.IX Subsection "aac_adtstoasc"
-Convert \s-1MPEG\-2/4\s0 \s-1AAC\s0 \s-1ADTS\s0 to \s-1MPEG\-4\s0 Audio Specific Configuration
-bitstream filter.
-.PP
-This filter creates an \s-1MPEG\-4\s0 AudioSpecificConfig from an \s-1MPEG\-2/4\s0
-\&\s-1ADTS\s0 header and removes the \s-1ADTS\s0 header.
-.PP
-This is required for example when copying an \s-1AAC\s0 stream from a raw
-\&\s-1ADTS\s0 \s-1AAC\s0 container to a \s-1FLV\s0 or a \s-1MOV/MP4\s0 file.
-.Sh "chomp"
-.IX Subsection "chomp"
-Remove zero padding at the end of a packet.
-.Sh "dump_extra"
-.IX Subsection "dump_extra"
-Add extradata to the beginning of the filtered packets.
-.PP
-The additional argument specifies which packets should be filtered.
-It accepts the values:
-.IP "\fBa\fR" 4
-.IX Item "a"
-add extradata to all key packets, but only if \fIlocal_header\fR is
-set in the \fBflags2\fR codec context field
-.IP "\fBk\fR" 4
-.IX Item "k"
-add extradata to all key packets
-.IP "\fBe\fR" 4
-.IX Item "e"
-add extradata to all packets
-.PP
-If not specified it is assumed \fBk\fR.
-.PP
-For example the following \fBffmpeg\fR command forces a global
-header (thus disabling individual packet headers) in the H.264 packets
-generated by the \f(CW\*(C`libx264\*(C'\fR encoder, but corrects them by adding
-the header stored in extradata to the key packets:
-.PP
-.Vb 1
-\&        ffmpeg -i INPUT -map 0 -flags:v +global_header -c:v libx264 -bsf:v dump_extra out.ts
-.Ve
-.Sh "h264_mp4toannexb"
-.IX Subsection "h264_mp4toannexb"
-Convert an H.264 bitstream from length prefixed mode to start code
-prefixed mode (as defined in the Annex B of the ITU-T H.264
-specification).
-.PP
-This is required by some streaming formats, typically the \s-1MPEG\-2\s0
-transport stream format (\*(L"mpegts\*(R").
-.PP
-For example to remux an \s-1MP4\s0 file containing an H.264 stream to mpegts
-format with \fBffmpeg\fR, you can use the command:
-.PP
-.Vb 1
-\&        ffmpeg -i INPUT.mp4 -codec copy -bsf:v h264_mp4toannexb OUTPUT.ts
-.Ve
-.Sh "imx_dump_header"
-.IX Subsection "imx_dump_header"
-.Sh "mjpeg2jpeg"
-.IX Subsection "mjpeg2jpeg"
-Convert \s-1MJPEG/AVI1\s0 packets to full \s-1JPEG/JFIF\s0 packets.
-.PP
-\&\s-1MJPEG\s0 is a video codec wherein each video frame is essentially a
-\&\s-1JPEG\s0 image. The individual frames can be extracted without loss,
-e.g. by
-.PP
-.Vb 1
-\&        ffmpeg -i ../some_mjpeg.avi -c:v copy frames_%d.jpg
-.Ve
-.PP
-Unfortunately, these chunks are incomplete \s-1JPEG\s0 images, because
-they lack the \s-1DHT\s0 segment required for decoding. Quoting from
-<\fBhttp://www.digitalpreservation.gov/formats/fdd/fdd000063.shtml\fR>:
-.PP
-Avery Lee, writing in the rec.video.desktop newsgroup in 2001,
-commented that \*(L"\s-1MJPEG\s0, or at least the \s-1MJPEG\s0 in AVIs having the
-\&\s-1MJPG\s0 fourcc, is restricted \s-1JPEG\s0 with a fixed \*(-- and *omitted* \*(--
-Huffman table. The \s-1JPEG\s0 must be YCbCr colorspace, it must be 4:2:2,
-and it must use basic Huffman encoding, not arithmetic or
-progressive. . . . You can indeed extract the \s-1MJPEG\s0 frames and
-decode them with a regular \s-1JPEG\s0 decoder, but you have to prepend
-the \s-1DHT\s0 segment to them, or else the decoder won't have any idea
-how to decompress the data. The exact table necessary is given in
-the OpenDML spec.\*(R"
-.PP
-This bitstream filter patches the header of frames extracted from an \s-1MJPEG\s0
-stream (carrying the \s-1AVI1\s0 header \s-1ID\s0 and lacking a \s-1DHT\s0 segment) to
-produce fully qualified \s-1JPEG\s0 images.
-.PP
-.Vb 3
-\&        ffmpeg -i mjpeg-movie.avi -c:v copy -bsf:v mjpeg2jpeg frame_%d.jpg
-\&        exiftran -i -9 frame*.jpg
-\&        ffmpeg -i frame_%d.jpg -c:v copy rotated.avi
-.Ve
-.Sh "mjpega_dump_header"
-.IX Subsection "mjpega_dump_header"
-.Sh "movsub"
-.IX Subsection "movsub"
-.Sh "mp3_header_compress"
-.IX Subsection "mp3_header_compress"
-.Sh "mp3_header_decompress"
-.IX Subsection "mp3_header_decompress"
-.Sh "noise"
-.IX Subsection "noise"
-.Sh "remove_extra"
-.IX Subsection "remove_extra"
-.SH "SEE ALSO"
-.IX Header "SEE ALSO"
-\&\fIffmpeg\fR\|(1), \fIffplay\fR\|(1), \fIffprobe\fR\|(1), \fIffserver\fR\|(1), \fIlibavcodec\fR\|(3)
-.SH "AUTHORS"
-.IX Header "AUTHORS"
-The FFmpeg developers.
-.PP
-For details about the authorship, see the Git history of the project
-(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
-\&\fBgit log\fR in the FFmpeg source directory, or browsing the
-online repository at <\fBhttp://source.ffmpeg.org\fR>.
-.PP
-Maintainers for the specific components are listed in the file
-\&\fI\s-1MAINTAINERS\s0\fR in the source code tree.
diff --git a/contrib/sdk/sources/ffmpeg/doc/ffmpeg-codecs.1 b/contrib/sdk/sources/ffmpeg/doc/ffmpeg-codecs.1
deleted file mode 100644
index 18e93e9761..0000000000
--- a/contrib/sdk/sources/ffmpeg/doc/ffmpeg-codecs.1
+++ /dev/null
@@ -1,3632 +0,0 @@
-.\" Automatically generated by Pod::Man v1.37, Pod::Parser v1.32
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-.if t .Sp
-.ne 5
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-\fB\\$1\fR
-.PP
-..
-.de Sp \" Vertical space (when we can't use .PP)
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-.tr \(*W-|\(bv\*(Tr
-.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
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-'br\}
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-.\"
-.\" If the F register is turned on, we'll generate index entries on stderr for
-.\" titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and index
-.\" entries marked with X<> in POD.  Of course, you'll have to process the
-.\" output yourself in some meaningful fashion.
-.if \nF \{\
-.    de IX
-.    tm Index:\\$1\t\\n%\t"\\$2"
-..
-.    nr % 0
-.    rr F
-.\}
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-.\" way too many mistakes in technical documents.
-.hy 0
-.if n .na
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-.    \" fudge factors for nroff and troff
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-.    ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
-.\}
-.    \" troff and (daisy-wheel) nroff accents
-.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
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-.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
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-.    \" for low resolution devices (crt and lpr)
-.if \n(.H>23 .if \n(.V>19 \
-\{\
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-.rm #[ #] #H #V #F C
-.\" ========================================================================
-.\"
-.IX Title "FFMPEG-CODECS 1"
-.TH FFMPEG-CODECS 1 "2013-12-14" " " " "
-.SH "NAME"
-ffmpeg\-codecs \- FFmpeg codecs
-.SH "DESCRIPTION"
-.IX Header "DESCRIPTION"
-This document describes the codecs (decoders and encoders) provided by
-the libavcodec library.
-.SH "CODEC OPTIONS"
-.IX Header "CODEC OPTIONS"
-libavcodec provides some generic global options, which can be set on
-all the encoders and decoders. In addition each codec may support
-so-called private options, which are specific for a given codec.
-.PP
-Sometimes, a global option may only affect a specific kind of codec,
-and may be unsensical or ignored by another, so you need to be aware
-of the meaning of the specified options. Also some options are
-meant only for decoding or encoding.
-.PP
-Options may be set by specifying \-\fIoption\fR \fIvalue\fR in the
-FFmpeg tools, or by setting the value explicitly in the
-\&\f(CW\*(C`AVCodecContext\*(C'\fR options or using the \fIlibavutil/opt.h\fR \s-1API\s0
-for programmatic use.
-.PP
-The list of supported options follow:
-.IP "\fBb\fR \fIinteger\fR \fB(\fR\fIencoding,audio,video\fR\fB)\fR" 4
-.IX Item "b integer (encoding,audio,video)"
-Set bitrate in bits/s. Default value is 200K.
-.IP "\fBab\fR \fIinteger\fR \fB(\fR\fIencoding,audio\fR\fB)\fR" 4
-.IX Item "ab integer (encoding,audio)"
-Set audio bitrate (in bits/s). Default value is 128K.
-.IP "\fBbt\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "bt integer (encoding,video)"
-Set video bitrate tolerance (in bits/s). In 1\-pass mode, bitrate
-tolerance specifies how far ratecontrol is willing to deviate from the
-target average bitrate value. This is not related to min/max
-bitrate. Lowering tolerance too much has an adverse effect on quality.
-.IP "\fBflags\fR \fIflags\fR \fB(\fR\fIdecoding/encoding,audio,video,subtitles\fR\fB)\fR" 4
-.IX Item "flags flags (decoding/encoding,audio,video,subtitles)"
-Set generic flags.
-.Sp
-Possible values:
-.RS 4
-.IP "\fBmv4\fR" 4
-.IX Item "mv4"
-Use four motion vector by macroblock (mpeg4).
-.IP "\fBqpel\fR" 4
-.IX Item "qpel"
-Use 1/4 pel motion compensation.
-.IP "\fBloop\fR" 4
-.IX Item "loop"
-Use loop filter.
-.IP "\fBqscale\fR" 4
-.IX Item "qscale"
-Use fixed qscale.
-.IP "\fBgmc\fR" 4
-.IX Item "gmc"
-Use gmc.
-.IP "\fBmv0\fR" 4
-.IX Item "mv0"
-Always try a mb with mv=<0,0>.
-.IP "\fBinput_preserved\fR" 4
-.IX Item "input_preserved"
-.PD 0
-.IP "\fBpass1\fR" 4
-.IX Item "pass1"
-.PD
-Use internal 2pass ratecontrol in first pass mode.
-.IP "\fBpass2\fR" 4
-.IX Item "pass2"
-Use internal 2pass ratecontrol in second pass mode.
-.IP "\fBgray\fR" 4
-.IX Item "gray"
-Only decode/encode grayscale.
-.IP "\fBemu_edge\fR" 4
-.IX Item "emu_edge"
-Do not draw edges.
-.IP "\fBpsnr\fR" 4
-.IX Item "psnr"
-Set error[?] variables during encoding.
-.IP "\fBtruncated\fR" 4
-.IX Item "truncated"
-.PD 0
-.IP "\fBnaq\fR" 4
-.IX Item "naq"
-.PD
-Normalize adaptive quantization.
-.IP "\fBildct\fR" 4
-.IX Item "ildct"
-Use interlaced \s-1DCT\s0.
-.IP "\fBlow_delay\fR" 4
-.IX Item "low_delay"
-Force low delay.
-.IP "\fBglobal_header\fR" 4
-.IX Item "global_header"
-Place global headers in extradata instead of every keyframe.
-.IP "\fBbitexact\fR" 4
-.IX Item "bitexact"
-Use only bitexact stuff (except (I)DCT).
-.IP "\fBaic\fR" 4
-.IX Item "aic"
-Apply H263 advanced intra coding / mpeg4 ac prediction.
-.IP "\fBcbp\fR" 4
-.IX Item "cbp"
-Deprecated, use mpegvideo private options instead.
-.IP "\fBqprd\fR" 4
-.IX Item "qprd"
-Deprecated, use mpegvideo private options instead.
-.IP "\fBilme\fR" 4
-.IX Item "ilme"
-Apply interlaced motion estimation.
-.IP "\fBcgop\fR" 4
-.IX Item "cgop"
-Use closed gop.
-.RE
-.RS 4
-.RE
-.IP "\fBme_method\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "me_method integer (encoding,video)"
-Set motion estimation method.
-.Sp
-Possible values:
-.RS 4
-.IP "\fBzero\fR" 4
-.IX Item "zero"
-zero motion estimation (fastest)
-.IP "\fBfull\fR" 4
-.IX Item "full"
-full motion estimation (slowest)
-.IP "\fBepzs\fR" 4
-.IX Item "epzs"
-\&\s-1EPZS\s0 motion estimation (default)
-.IP "\fBesa\fR" 4
-.IX Item "esa"
-esa motion estimation (alias for full)
-.IP "\fBtesa\fR" 4
-.IX Item "tesa"
-tesa motion estimation
-.IP "\fBdia\fR" 4
-.IX Item "dia"
-dia motion estimation (alias for epzs)
-.IP "\fBlog\fR" 4
-.IX Item "log"
-log motion estimation
-.IP "\fBphods\fR" 4
-.IX Item "phods"
-phods motion estimation
-.IP "\fBx1\fR" 4
-.IX Item "x1"
-X1 motion estimation
-.IP "\fBhex\fR" 4
-.IX Item "hex"
-hex motion estimation
-.IP "\fBumh\fR" 4
-.IX Item "umh"
-umh motion estimation
-.IP "\fBiter\fR" 4
-.IX Item "iter"
-iter motion estimation
-.RE
-.RS 4
-.RE
-.IP "\fBextradata_size\fR \fIinteger\fR" 4
-.IX Item "extradata_size integer"
-Set extradata size.
-.IP "\fBtime_base\fR \fIrational number\fR" 4
-.IX Item "time_base rational number"
-Set codec time base.
-.Sp
-It is the fundamental unit of time (in seconds) in terms of which
-frame timestamps are represented. For fixed-fps content, timebase
-should be \f(CW\*(C`1 / frame_rate\*(C'\fR and timestamp increments should be
-identically 1.
-.IP "\fBg\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "g integer (encoding,video)"
-Set the group of picture size. Default value is 12.
-.IP "\fBar\fR \fIinteger\fR \fB(\fR\fIdecoding/encoding,audio\fR\fB)\fR" 4
-.IX Item "ar integer (decoding/encoding,audio)"
-Set audio sampling rate (in Hz).
-.IP "\fBac\fR \fIinteger\fR \fB(\fR\fIdecoding/encoding,audio\fR\fB)\fR" 4
-.IX Item "ac integer (decoding/encoding,audio)"
-Set number of audio channels.
-.IP "\fBcutoff\fR \fIinteger\fR \fB(\fR\fIencoding,audio\fR\fB)\fR" 4
-.IX Item "cutoff integer (encoding,audio)"
-Set cutoff bandwidth.
-.IP "\fBframe_size\fR \fIinteger\fR \fB(\fR\fIencoding,audio\fR\fB)\fR" 4
-.IX Item "frame_size integer (encoding,audio)"
-Set audio frame size.
-.Sp
-Each submitted frame except the last must contain exactly frame_size
-samples per channel. May be 0 when the codec has
-\&\s-1CODEC_CAP_VARIABLE_FRAME_SIZE\s0 set, in that case the frame size is not
-restricted. It is set by some decoders to indicate constant frame
-size.
-.IP "\fBframe_number\fR \fIinteger\fR" 4
-.IX Item "frame_number integer"
-Set the frame number.
-.IP "\fBdelay\fR \fIinteger\fR" 4
-.IX Item "delay integer"
-.PD 0
-.IP "\fBqcomp\fR \fIfloat\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "qcomp float (encoding,video)"
-.PD
-Set video quantizer scale compression (\s-1VBR\s0). It is used as a constant
-in the ratecontrol equation. Recommended range for default rc_eq:
-0.0\-1.0.
-.IP "\fBqblur\fR \fIfloat\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "qblur float (encoding,video)"
-Set video quantizer scale blur (\s-1VBR\s0).
-.IP "\fBqmin\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "qmin integer (encoding,video)"
-Set min video quantizer scale (\s-1VBR\s0). Must be included between \-1 and
-69, default value is 2.
-.IP "\fBqmax\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "qmax integer (encoding,video)"
-Set max video quantizer scale (\s-1VBR\s0). Must be included between \-1 and
-1024, default value is 31.
-.IP "\fBqdiff\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "qdiff integer (encoding,video)"
-Set max difference between the quantizer scale (\s-1VBR\s0).
-.IP "\fBbf\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "bf integer (encoding,video)"
-Set max number of B frames.
-.IP "\fBb_qfactor\fR \fIfloat\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "b_qfactor float (encoding,video)"
-Set qp factor between P and B frames.
-.IP "\fBrc_strategy\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "rc_strategy integer (encoding,video)"
-Set ratecontrol method.
-.IP "\fBb_strategy\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "b_strategy integer (encoding,video)"
-Set strategy to choose between I/P/B\-frames.
-.IP "\fBps\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "ps integer (encoding,video)"
-Set \s-1RTP\s0 payload size in bytes.
-.IP "\fBmv_bits\fR \fIinteger\fR" 4
-.IX Item "mv_bits integer"
-.PD 0
-.IP "\fBheader_bits\fR \fIinteger\fR" 4
-.IX Item "header_bits integer"
-.IP "\fBi_tex_bits\fR \fIinteger\fR" 4
-.IX Item "i_tex_bits integer"
-.IP "\fBp_tex_bits\fR \fIinteger\fR" 4
-.IX Item "p_tex_bits integer"
-.IP "\fBi_count\fR \fIinteger\fR" 4
-.IX Item "i_count integer"
-.IP "\fBp_count\fR \fIinteger\fR" 4
-.IX Item "p_count integer"
-.IP "\fBskip_count\fR \fIinteger\fR" 4
-.IX Item "skip_count integer"
-.IP "\fBmisc_bits\fR \fIinteger\fR" 4
-.IX Item "misc_bits integer"
-.IP "\fBframe_bits\fR \fIinteger\fR" 4
-.IX Item "frame_bits integer"
-.IP "\fBcodec_tag\fR \fIinteger\fR" 4
-.IX Item "codec_tag integer"
-.IP "\fBbug\fR \fIflags\fR \fB(\fR\fIdecoding,video\fR\fB)\fR" 4
-.IX Item "bug flags (decoding,video)"
-.PD
-Workaround not auto detected encoder bugs.
-.Sp
-Possible values:
-.RS 4
-.IP "\fBautodetect\fR" 4
-.IX Item "autodetect"
-.PD 0
-.IP "\fBold_msmpeg4\fR" 4
-.IX Item "old_msmpeg4"
-.PD
-some old lavc generated msmpeg4v3 files (no autodetection)
-.IP "\fBxvid_ilace\fR" 4
-.IX Item "xvid_ilace"
-Xvid interlacing bug (autodetected if fourcc==XVIX)
-.IP "\fBump4\fR" 4
-.IX Item "ump4"
-(autodetected if fourcc==UMP4)
-.IP "\fBno_padding\fR" 4
-.IX Item "no_padding"
-padding bug (autodetected)
-.IP "\fBamv\fR" 4
-.IX Item "amv"
-.PD 0
-.IP "\fBac_vlc\fR" 4
-.IX Item "ac_vlc"
-.PD
-illegal vlc bug (autodetected per fourcc)
-.IP "\fBqpel_chroma\fR" 4
-.IX Item "qpel_chroma"
-.PD 0
-.IP "\fBstd_qpel\fR" 4
-.IX Item "std_qpel"
-.PD
-old standard qpel (autodetected per fourcc/version)
-.IP "\fBqpel_chroma2\fR" 4
-.IX Item "qpel_chroma2"
-.PD 0
-.IP "\fBdirect_blocksize\fR" 4
-.IX Item "direct_blocksize"
-.PD
-direct-qpel-blocksize bug (autodetected per fourcc/version)
-.IP "\fBedge\fR" 4
-.IX Item "edge"
-edge padding bug (autodetected per fourcc/version)
-.IP "\fBhpel_chroma\fR" 4
-.IX Item "hpel_chroma"
-.PD 0
-.IP "\fBdc_clip\fR" 4
-.IX Item "dc_clip"
-.IP "\fBms\fR" 4
-.IX Item "ms"
-.PD
-Workaround various bugs in microsoft broken decoders.
-.IP "\fBtrunc\fR" 4
-.IX Item "trunc"
-trancated frames
-.RE
-.RS 4
-.RE
-.IP "\fBlelim\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "lelim integer (encoding,video)"
-Set single coefficient elimination threshold for luminance (negative
-values also consider \s-1DC\s0 coefficient).
-.IP "\fBcelim\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "celim integer (encoding,video)"
-Set single coefficient elimination threshold for chrominance (negative
-values also consider dc coefficient)
-.IP "\fBstrict\fR \fIinteger\fR \fB(\fR\fIdecoding/encoding,audio,video\fR\fB)\fR" 4
-.IX Item "strict integer (decoding/encoding,audio,video)"
-Specify how strictly to follow the standards.
-.Sp
-Possible values:
-.RS 4
-.IP "\fBvery\fR" 4
-.IX Item "very"
-strictly conform to a older more strict version of the spec or reference software
-.IP "\fBstrict\fR" 4
-.IX Item "strict"
-strictly conform to all the things in the spec no matter what consequences
-.IP "\fBnormal\fR" 4
-.IX Item "normal"
-.PD 0
-.IP "\fBunofficial\fR" 4
-.IX Item "unofficial"
-.PD
-allow unofficial extensions
-.IP "\fBexperimental\fR" 4
-.IX Item "experimental"
-allow non standardized experimental things, experimental
-(unfinished/work in progress/not well tested) decoders and encoders.
-Note: experimental decoders can pose a security risk, do not use this for
-decoding untrusted input.
-.RE
-.RS 4
-.RE
-.IP "\fBb_qoffset\fR \fIfloat\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "b_qoffset float (encoding,video)"
-Set \s-1QP\s0 offset between P and B frames.
-.IP "\fBerr_detect\fR \fIflags\fR \fB(\fR\fIdecoding,audio,video\fR\fB)\fR" 4
-.IX Item "err_detect flags (decoding,audio,video)"
-Set error detection flags.
-.Sp
-Possible values:
-.RS 4
-.IP "\fBcrccheck\fR" 4
-.IX Item "crccheck"
-verify embedded CRCs
-.IP "\fBbitstream\fR" 4
-.IX Item "bitstream"
-detect bitstream specification deviations
-.IP "\fBbuffer\fR" 4
-.IX Item "buffer"
-detect improper bitstream length
-.IP "\fBexplode\fR" 4
-.IX Item "explode"
-abort decoding on minor error detection
-.IP "\fBcareful\fR" 4
-.IX Item "careful"
-consider things that violate the spec and have not been seen in the wild as errors
-.IP "\fBcompliant\fR" 4
-.IX Item "compliant"
-consider all spec non compliancies as errors
-.IP "\fBaggressive\fR" 4
-.IX Item "aggressive"
-consider things that a sane encoder should not do as an error
-.RE
-.RS 4
-.RE
-.IP "\fBhas_b_frames\fR \fIinteger\fR" 4
-.IX Item "has_b_frames integer"
-.PD 0
-.IP "\fBblock_align\fR \fIinteger\fR" 4
-.IX Item "block_align integer"
-.IP "\fBmpeg_quant\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "mpeg_quant integer (encoding,video)"
-.PD
-Use \s-1MPEG\s0 quantizers instead of H.263.
-.IP "\fBqsquish\fR \fIfloat\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "qsquish float (encoding,video)"
-How to keep quantizer between qmin and qmax (0 = clip, 1 = use
-differentiable function).
-.IP "\fBrc_qmod_amp\fR \fIfloat\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "rc_qmod_amp float (encoding,video)"
-Set experimental quantizer modulation.
-.IP "\fBrc_qmod_freq\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "rc_qmod_freq integer (encoding,video)"
-Set experimental quantizer modulation.
-.IP "\fBrc_override_count\fR \fIinteger\fR" 4
-.IX Item "rc_override_count integer"
-.PD 0
-.IP "\fBrc_eq\fR \fIstring\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "rc_eq string (encoding,video)"
-.PD
-Set rate control equation. When computing the expression, besides the
-standard functions defined in the section 'Expression Evaluation', the
-following functions are available: bits2qp(bits), qp2bits(qp). Also
-the following constants are available: iTex pTex tex mv fCode iCount
-mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex
-avgTex.
-.IP "\fBmaxrate\fR \fIinteger\fR \fB(\fR\fIencoding,audio,video\fR\fB)\fR" 4
-.IX Item "maxrate integer (encoding,audio,video)"
-Set max bitrate tolerance (in bits/s). Requires bufsize to be set.
-.IP "\fBminrate\fR \fIinteger\fR \fB(\fR\fIencoding,audio,video\fR\fB)\fR" 4
-.IX Item "minrate integer (encoding,audio,video)"
-Set min bitrate tolerance (in bits/s). Most useful in setting up a \s-1CBR\s0
-encode. It is of little use elsewise.
-.IP "\fBbufsize\fR \fIinteger\fR \fB(\fR\fIencoding,audio,video\fR\fB)\fR" 4
-.IX Item "bufsize integer (encoding,audio,video)"
-Set ratecontrol buffer size (in bits).
-.IP "\fBrc_buf_aggressivity\fR \fIfloat\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "rc_buf_aggressivity float (encoding,video)"
-Currently useless.
-.IP "\fBi_qfactor\fR \fIfloat\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "i_qfactor float (encoding,video)"
-Set \s-1QP\s0 factor between P and I frames.
-.IP "\fBi_qoffset\fR \fIfloat\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "i_qoffset float (encoding,video)"
-Set \s-1QP\s0 offset between P and I frames.
-.IP "\fBrc_init_cplx\fR \fIfloat\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "rc_init_cplx float (encoding,video)"
-Set initial complexity for 1\-pass encoding.
-.IP "\fBdct\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "dct integer (encoding,video)"
-Set \s-1DCT\s0 algorithm.
-.Sp
-Possible values:
-.RS 4
-.IP "\fBauto\fR" 4
-.IX Item "auto"
-autoselect a good one (default)
-.IP "\fBfastint\fR" 4
-.IX Item "fastint"
-fast integer
-.IP "\fBint\fR" 4
-.IX Item "int"
-accurate integer
-.IP "\fBmmx\fR" 4
-.IX Item "mmx"
-.PD 0
-.IP "\fBaltivec\fR" 4
-.IX Item "altivec"
-.IP "\fBfaan\fR" 4
-.IX Item "faan"
-.PD
-floating point \s-1AAN\s0 \s-1DCT\s0
-.RE
-.RS 4
-.RE
-.IP "\fBlumi_mask\fR \fIfloat\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "lumi_mask float (encoding,video)"
-Compress bright areas stronger than medium ones.
-.IP "\fBtcplx_mask\fR \fIfloat\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "tcplx_mask float (encoding,video)"
-Set temporal complexity masking.
-.IP "\fBscplx_mask\fR \fIfloat\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "scplx_mask float (encoding,video)"
-Set spatial complexity masking.
-.IP "\fBp_mask\fR \fIfloat\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "p_mask float (encoding,video)"
-Set inter masking.
-.IP "\fBdark_mask\fR \fIfloat\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "dark_mask float (encoding,video)"
-Compress dark areas stronger than medium ones.
-.IP "\fBidct\fR \fIinteger\fR \fB(\fR\fIdecoding/encoding,video\fR\fB)\fR" 4
-.IX Item "idct integer (decoding/encoding,video)"
-Select \s-1IDCT\s0 implementation.
-.Sp
-Possible values:
-.RS 4
-.IP "\fBauto\fR" 4
-.IX Item "auto"
-.PD 0
-.IP "\fBint\fR" 4
-.IX Item "int"
-.IP "\fBsimple\fR" 4
-.IX Item "simple"
-.IP "\fBsimplemmx\fR" 4
-.IX Item "simplemmx"
-.IP "\fBarm\fR" 4
-.IX Item "arm"
-.IP "\fBaltivec\fR" 4
-.IX Item "altivec"
-.IP "\fBsh4\fR" 4
-.IX Item "sh4"
-.IP "\fBsimplearm\fR" 4
-.IX Item "simplearm"
-.IP "\fBsimplearmv5te\fR" 4
-.IX Item "simplearmv5te"
-.IP "\fBsimplearmv6\fR" 4
-.IX Item "simplearmv6"
-.IP "\fBsimpleneon\fR" 4
-.IX Item "simpleneon"
-.IP "\fBsimplealpha\fR" 4
-.IX Item "simplealpha"
-.IP "\fBipp\fR" 4
-.IX Item "ipp"
-.IP "\fBxvidmmx\fR" 4
-.IX Item "xvidmmx"
-.IP "\fBfaani\fR" 4
-.IX Item "faani"
-.PD
-floating point \s-1AAN\s0 \s-1IDCT\s0
-.RE
-.RS 4
-.RE
-.IP "\fBslice_count\fR \fIinteger\fR" 4
-.IX Item "slice_count integer"
-.PD 0
-.IP "\fBec\fR \fIflags\fR \fB(\fR\fIdecoding,video\fR\fB)\fR" 4
-.IX Item "ec flags (decoding,video)"
-.PD
-Set error concealment strategy.
-.Sp
-Possible values:
-.RS 4
-.IP "\fBguess_mvs\fR" 4
-.IX Item "guess_mvs"
-iterative motion vector (\s-1MV\s0) search (slow)
-.IP "\fBdeblock\fR" 4
-.IX Item "deblock"
-use strong deblock filter for damaged MBs
-.RE
-.RS 4
-.RE
-.IP "\fBbits_per_coded_sample\fR \fIinteger\fR" 4
-.IX Item "bits_per_coded_sample integer"
-.PD 0
-.IP "\fBpred\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "pred integer (encoding,video)"
-.PD
-Set prediction method.
-.Sp
-Possible values:
-.RS 4
-.IP "\fBleft\fR" 4
-.IX Item "left"
-.PD 0
-.IP "\fBplane\fR" 4
-.IX Item "plane"
-.IP "\fBmedian\fR" 4
-.IX Item "median"
-.RE
-.RS 4
-.RE
-.IP "\fBaspect\fR \fIrational number\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "aspect rational number (encoding,video)"
-.PD
-Set sample aspect ratio.
-.IP "\fBdebug\fR \fIflags\fR \fB(\fR\fIdecoding/encoding,audio,video,subtitles\fR\fB)\fR" 4
-.IX Item "debug flags (decoding/encoding,audio,video,subtitles)"
-Print specific debug info.
-.Sp
-Possible values:
-.RS 4
-.IP "\fBpict\fR" 4
-.IX Item "pict"
-picture info
-.IP "\fBrc\fR" 4
-.IX Item "rc"
-rate control
-.IP "\fBbitstream\fR" 4
-.IX Item "bitstream"
-.PD 0
-.IP "\fBmb_type\fR" 4
-.IX Item "mb_type"
-.PD
-macroblock (\s-1MB\s0) type
-.IP "\fBqp\fR" 4
-.IX Item "qp"
-per-block quantization parameter (\s-1QP\s0)
-.IP "\fBmv\fR" 4
-.IX Item "mv"
-motion vector
-.IP "\fBdct_coeff\fR" 4
-.IX Item "dct_coeff"
-.PD 0
-.IP "\fBskip\fR" 4
-.IX Item "skip"
-.IP "\fBstartcode\fR" 4
-.IX Item "startcode"
-.IP "\fBpts\fR" 4
-.IX Item "pts"
-.IP "\fBer\fR" 4
-.IX Item "er"
-.PD
-error recognition
-.IP "\fBmmco\fR" 4
-.IX Item "mmco"
-memory management control operations (H.264)
-.IP "\fBbugs\fR" 4
-.IX Item "bugs"
-.PD 0
-.IP "\fBvis_qp\fR" 4
-.IX Item "vis_qp"
-.PD
-visualize quantization parameter (\s-1QP\s0), lower \s-1QP\s0 are tinted greener
-.IP "\fBvis_mb_type\fR" 4
-.IX Item "vis_mb_type"
-visualize block types
-.IP "\fBbuffers\fR" 4
-.IX Item "buffers"
-picture buffer allocations
-.IP "\fBthread_ops\fR" 4
-.IX Item "thread_ops"
-threading operations
-.RE
-.RS 4
-.RE
-.IP "\fBvismv\fR \fIinteger\fR \fB(\fR\fIdecoding,video\fR\fB)\fR" 4
-.IX Item "vismv integer (decoding,video)"
-Visualize motion vectors (MVs).
-.Sp
-Possible values:
-.RS 4
-.IP "\fBpf\fR" 4
-.IX Item "pf"
-forward predicted MVs of P\-frames
-.IP "\fBbf\fR" 4
-.IX Item "bf"
-forward predicted MVs of B\-frames
-.IP "\fBbb\fR" 4
-.IX Item "bb"
-backward predicted MVs of B\-frames
-.RE
-.RS 4
-.RE
-.IP "\fBcmp\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "cmp integer (encoding,video)"
-Set full pel me compare function.
-.Sp
-Possible values:
-.RS 4
-.IP "\fBsad\fR" 4
-.IX Item "sad"
-sum of absolute differences, fast (default)
-.IP "\fBsse\fR" 4
-.IX Item "sse"
-sum of squared errors
-.IP "\fBsatd\fR" 4
-.IX Item "satd"
-sum of absolute Hadamard transformed differences
-.IP "\fBdct\fR" 4
-.IX Item "dct"
-sum of absolute \s-1DCT\s0 transformed differences
-.IP "\fBpsnr\fR" 4
-.IX Item "psnr"
-sum of squared quantization errors (avoid, low quality)
-.IP "\fBbit\fR" 4
-.IX Item "bit"
-number of bits needed for the block
-.IP "\fBrd\fR" 4
-.IX Item "rd"
-rate distortion optimal, slow
-.IP "\fBzero\fR" 4
-.IX Item "zero"
-0
-.IP "\fBvsad\fR" 4
-.IX Item "vsad"
-sum of absolute vertical differences
-.IP "\fBvsse\fR" 4
-.IX Item "vsse"
-sum of squared vertical differences
-.IP "\fBnsse\fR" 4
-.IX Item "nsse"
-noise preserving sum of squared differences
-.IP "\fBw53\fR" 4
-.IX Item "w53"
-5/3 wavelet, only used in snow
-.IP "\fBw97\fR" 4
-.IX Item "w97"
-9/7 wavelet, only used in snow
-.IP "\fBdctmax\fR" 4
-.IX Item "dctmax"
-.PD 0
-.IP "\fBchroma\fR" 4
-.IX Item "chroma"
-.RE
-.RS 4
-.RE
-.IP "\fBsubcmp\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "subcmp integer (encoding,video)"
-.PD
-Set sub pel me compare function.
-.Sp
-Possible values:
-.RS 4
-.IP "\fBsad\fR" 4
-.IX Item "sad"
-sum of absolute differences, fast (default)
-.IP "\fBsse\fR" 4
-.IX Item "sse"
-sum of squared errors
-.IP "\fBsatd\fR" 4
-.IX Item "satd"
-sum of absolute Hadamard transformed differences
-.IP "\fBdct\fR" 4
-.IX Item "dct"
-sum of absolute \s-1DCT\s0 transformed differences
-.IP "\fBpsnr\fR" 4
-.IX Item "psnr"
-sum of squared quantization errors (avoid, low quality)
-.IP "\fBbit\fR" 4
-.IX Item "bit"
-number of bits needed for the block
-.IP "\fBrd\fR" 4
-.IX Item "rd"
-rate distortion optimal, slow
-.IP "\fBzero\fR" 4
-.IX Item "zero"
-0
-.IP "\fBvsad\fR" 4
-.IX Item "vsad"
-sum of absolute vertical differences
-.IP "\fBvsse\fR" 4
-.IX Item "vsse"
-sum of squared vertical differences
-.IP "\fBnsse\fR" 4
-.IX Item "nsse"
-noise preserving sum of squared differences
-.IP "\fBw53\fR" 4
-.IX Item "w53"
-5/3 wavelet, only used in snow
-.IP "\fBw97\fR" 4
-.IX Item "w97"
-9/7 wavelet, only used in snow
-.IP "\fBdctmax\fR" 4
-.IX Item "dctmax"
-.PD 0
-.IP "\fBchroma\fR" 4
-.IX Item "chroma"
-.RE
-.RS 4
-.RE
-.IP "\fBmbcmp\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "mbcmp integer (encoding,video)"
-.PD
-Set macroblock compare function.
-.Sp
-Possible values:
-.RS 4
-.IP "\fBsad\fR" 4
-.IX Item "sad"
-sum of absolute differences, fast (default)
-.IP "\fBsse\fR" 4
-.IX Item "sse"
-sum of squared errors
-.IP "\fBsatd\fR" 4
-.IX Item "satd"
-sum of absolute Hadamard transformed differences
-.IP "\fBdct\fR" 4
-.IX Item "dct"
-sum of absolute \s-1DCT\s0 transformed differences
-.IP "\fBpsnr\fR" 4
-.IX Item "psnr"
-sum of squared quantization errors (avoid, low quality)
-.IP "\fBbit\fR" 4
-.IX Item "bit"
-number of bits needed for the block
-.IP "\fBrd\fR" 4
-.IX Item "rd"
-rate distortion optimal, slow
-.IP "\fBzero\fR" 4
-.IX Item "zero"
-0
-.IP "\fBvsad\fR" 4
-.IX Item "vsad"
-sum of absolute vertical differences
-.IP "\fBvsse\fR" 4
-.IX Item "vsse"
-sum of squared vertical differences
-.IP "\fBnsse\fR" 4
-.IX Item "nsse"
-noise preserving sum of squared differences
-.IP "\fBw53\fR" 4
-.IX Item "w53"
-5/3 wavelet, only used in snow
-.IP "\fBw97\fR" 4
-.IX Item "w97"
-9/7 wavelet, only used in snow
-.IP "\fBdctmax\fR" 4
-.IX Item "dctmax"
-.PD 0
-.IP "\fBchroma\fR" 4
-.IX Item "chroma"
-.RE
-.RS 4
-.RE
-.IP "\fBildctcmp\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "ildctcmp integer (encoding,video)"
-.PD
-Set interlaced dct compare function.
-.Sp
-Possible values:
-.RS 4
-.IP "\fBsad\fR" 4
-.IX Item "sad"
-sum of absolute differences, fast (default)
-.IP "\fBsse\fR" 4
-.IX Item "sse"
-sum of squared errors
-.IP "\fBsatd\fR" 4
-.IX Item "satd"
-sum of absolute Hadamard transformed differences
-.IP "\fBdct\fR" 4
-.IX Item "dct"
-sum of absolute \s-1DCT\s0 transformed differences
-.IP "\fBpsnr\fR" 4
-.IX Item "psnr"
-sum of squared quantization errors (avoid, low quality)
-.IP "\fBbit\fR" 4
-.IX Item "bit"
-number of bits needed for the block
-.IP "\fBrd\fR" 4
-.IX Item "rd"
-rate distortion optimal, slow
-.IP "\fBzero\fR" 4
-.IX Item "zero"
-0
-.IP "\fBvsad\fR" 4
-.IX Item "vsad"
-sum of absolute vertical differences
-.IP "\fBvsse\fR" 4
-.IX Item "vsse"
-sum of squared vertical differences
-.IP "\fBnsse\fR" 4
-.IX Item "nsse"
-noise preserving sum of squared differences
-.IP "\fBw53\fR" 4
-.IX Item "w53"
-5/3 wavelet, only used in snow
-.IP "\fBw97\fR" 4
-.IX Item "w97"
-9/7 wavelet, only used in snow
-.IP "\fBdctmax\fR" 4
-.IX Item "dctmax"
-.PD 0
-.IP "\fBchroma\fR" 4
-.IX Item "chroma"
-.RE
-.RS 4
-.RE
-.IP "\fBdia_size\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "dia_size integer (encoding,video)"
-.PD
-Set diamond type & size for motion estimation.
-.IP "\fBlast_pred\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "last_pred integer (encoding,video)"
-Set amount of motion predictors from the previous frame.
-.IP "\fBpreme\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "preme integer (encoding,video)"
-Set pre motion estimation.
-.IP "\fBprecmp\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "precmp integer (encoding,video)"
-Set pre motion estimation compare function.
-.Sp
-Possible values:
-.RS 4
-.IP "\fBsad\fR" 4
-.IX Item "sad"
-sum of absolute differences, fast (default)
-.IP "\fBsse\fR" 4
-.IX Item "sse"
-sum of squared errors
-.IP "\fBsatd\fR" 4
-.IX Item "satd"
-sum of absolute Hadamard transformed differences
-.IP "\fBdct\fR" 4
-.IX Item "dct"
-sum of absolute \s-1DCT\s0 transformed differences
-.IP "\fBpsnr\fR" 4
-.IX Item "psnr"
-sum of squared quantization errors (avoid, low quality)
-.IP "\fBbit\fR" 4
-.IX Item "bit"
-number of bits needed for the block
-.IP "\fBrd\fR" 4
-.IX Item "rd"
-rate distortion optimal, slow
-.IP "\fBzero\fR" 4
-.IX Item "zero"
-0
-.IP "\fBvsad\fR" 4
-.IX Item "vsad"
-sum of absolute vertical differences
-.IP "\fBvsse\fR" 4
-.IX Item "vsse"
-sum of squared vertical differences
-.IP "\fBnsse\fR" 4
-.IX Item "nsse"
-noise preserving sum of squared differences
-.IP "\fBw53\fR" 4
-.IX Item "w53"
-5/3 wavelet, only used in snow
-.IP "\fBw97\fR" 4
-.IX Item "w97"
-9/7 wavelet, only used in snow
-.IP "\fBdctmax\fR" 4
-.IX Item "dctmax"
-.PD 0
-.IP "\fBchroma\fR" 4
-.IX Item "chroma"
-.RE
-.RS 4
-.RE
-.IP "\fBpre_dia_size\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "pre_dia_size integer (encoding,video)"
-.PD
-Set diamond type & size for motion estimation pre\-pass.
-.IP "\fBsubq\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "subq integer (encoding,video)"
-Set sub pel motion estimation quality.
-.IP "\fBdtg_active_format\fR \fIinteger\fR" 4
-.IX Item "dtg_active_format integer"
-.PD 0
-.IP "\fBme_range\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "me_range integer (encoding,video)"
-.PD
-Set limit motion vectors range (1023 for DivX player).
-.IP "\fBibias\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "ibias integer (encoding,video)"
-Set intra quant bias.
-.IP "\fBpbias\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "pbias integer (encoding,video)"
-Set inter quant bias.
-.IP "\fBcolor_table_id\fR \fIinteger\fR" 4
-.IX Item "color_table_id integer"
-.PD 0
-.IP "\fBglobal_quality\fR \fIinteger\fR \fB(\fR\fIencoding,audio,video\fR\fB)\fR" 4
-.IX Item "global_quality integer (encoding,audio,video)"
-.IP "\fBcoder\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "coder integer (encoding,video)"
-.PD
-Possible values:
-.RS 4
-.IP "\fBvlc\fR" 4
-.IX Item "vlc"
-variable length coder / huffman coder
-.IP "\fBac\fR" 4
-.IX Item "ac"
-arithmetic coder
-.IP "\fBraw\fR" 4
-.IX Item "raw"
-raw (no encoding)
-.IP "\fBrle\fR" 4
-.IX Item "rle"
-run-length coder
-.IP "\fBdeflate\fR" 4
-.IX Item "deflate"
-deflate-based coder
-.RE
-.RS 4
-.RE
-.IP "\fBcontext\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "context integer (encoding,video)"
-Set context model.
-.IP "\fBslice_flags\fR \fIinteger\fR" 4
-.IX Item "slice_flags integer"
-.PD 0
-.IP "\fBxvmc_acceleration\fR \fIinteger\fR" 4
-.IX Item "xvmc_acceleration integer"
-.IP "\fBmbd\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "mbd integer (encoding,video)"
-.PD
-Set macroblock decision algorithm (high quality mode).
-.Sp
-Possible values:
-.RS 4
-.IP "\fBsimple\fR" 4
-.IX Item "simple"
-use mbcmp (default)
-.IP "\fBbits\fR" 4
-.IX Item "bits"
-use fewest bits
-.IP "\fBrd\fR" 4
-.IX Item "rd"
-use best rate distortion
-.RE
-.RS 4
-.RE
-.IP "\fBstream_codec_tag\fR \fIinteger\fR" 4
-.IX Item "stream_codec_tag integer"
-.PD 0
-.IP "\fBsc_threshold\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "sc_threshold integer (encoding,video)"
-.PD
-Set scene change threshold.
-.IP "\fBlmin\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "lmin integer (encoding,video)"
-Set min lagrange factor (\s-1VBR\s0).
-.IP "\fBlmax\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "lmax integer (encoding,video)"
-Set max lagrange factor (\s-1VBR\s0).
-.IP "\fBnr\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "nr integer (encoding,video)"
-Set noise reduction.
-.IP "\fBrc_init_occupancy\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "rc_init_occupancy integer (encoding,video)"
-Set number of bits which should be loaded into the rc buffer before
-decoding starts.
-.IP "\fBflags2\fR \fIflags\fR \fB(\fR\fIdecoding/encoding,audio,video\fR\fB)\fR" 4
-.IX Item "flags2 flags (decoding/encoding,audio,video)"
-Possible values:
-.RS 4
-.IP "\fBfast\fR" 4
-.IX Item "fast"
-Allow non spec compliant speedup tricks.
-.IP "\fBsgop\fR" 4
-.IX Item "sgop"
-Deprecated, use mpegvideo private options instead.
-.IP "\fBnoout\fR" 4
-.IX Item "noout"
-Skip bitstream encoding.
-.IP "\fBignorecrop\fR" 4
-.IX Item "ignorecrop"
-Ignore cropping information from sps.
-.IP "\fBlocal_header\fR" 4
-.IX Item "local_header"
-Place global headers at every keyframe instead of in extradata.
-.IP "\fBchunks\fR" 4
-.IX Item "chunks"
-Frame data might be split into multiple chunks.
-.IP "\fBshowall\fR" 4
-.IX Item "showall"
-Show all frames before the first keyframe.
-.IP "\fBskiprd\fR" 4
-.IX Item "skiprd"
-Deprecated, use mpegvideo private options instead.
-.RE
-.RS 4
-.RE
-.IP "\fBerror\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "error integer (encoding,video)"
-.PD 0
-.IP "\fBqns\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "qns integer (encoding,video)"
-.PD
-Deprecated, use mpegvideo private options instead.
-.IP "\fBthreads\fR \fIinteger\fR \fB(\fR\fIdecoding/encoding,video\fR\fB)\fR" 4
-.IX Item "threads integer (decoding/encoding,video)"
-Possible values:
-.RS 4
-.IP "\fBauto\fR" 4
-.IX Item "auto"
-detect a good number of threads
-.RE
-.RS 4
-.RE
-.IP "\fBme_threshold\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "me_threshold integer (encoding,video)"
-Set motion estimation threshold.
-.IP "\fBmb_threshold\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "mb_threshold integer (encoding,video)"
-Set macroblock threshold.
-.IP "\fBdc\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "dc integer (encoding,video)"
-Set intra_dc_precision.
-.IP "\fBnssew\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "nssew integer (encoding,video)"
-Set nsse weight.
-.IP "\fBskip_top\fR \fIinteger\fR \fB(\fR\fIdecoding,video\fR\fB)\fR" 4
-.IX Item "skip_top integer (decoding,video)"
-Set number of macroblock rows at the top which are skipped.
-.IP "\fBskip_bottom\fR \fIinteger\fR \fB(\fR\fIdecoding,video\fR\fB)\fR" 4
-.IX Item "skip_bottom integer (decoding,video)"
-Set number of macroblock rows at the bottom which are skipped.
-.IP "\fBprofile\fR \fIinteger\fR \fB(\fR\fIencoding,audio,video\fR\fB)\fR" 4
-.IX Item "profile integer (encoding,audio,video)"
-Possible values:
-.RS 4
-.IP "\fBunknown\fR" 4
-.IX Item "unknown"
-.PD 0
-.IP "\fBaac_main\fR" 4
-.IX Item "aac_main"
-.IP "\fBaac_low\fR" 4
-.IX Item "aac_low"
-.IP "\fBaac_ssr\fR" 4
-.IX Item "aac_ssr"
-.IP "\fBaac_ltp\fR" 4
-.IX Item "aac_ltp"
-.IP "\fBaac_he\fR" 4
-.IX Item "aac_he"
-.IP "\fBaac_he_v2\fR" 4
-.IX Item "aac_he_v2"
-.IP "\fBaac_ld\fR" 4
-.IX Item "aac_ld"
-.IP "\fBaac_eld\fR" 4
-.IX Item "aac_eld"
-.IP "\fBmpeg2_aac_low\fR" 4
-.IX Item "mpeg2_aac_low"
-.IP "\fBmpeg2_aac_he\fR" 4
-.IX Item "mpeg2_aac_he"
-.IP "\fBdts\fR" 4
-.IX Item "dts"
-.IP "\fBdts_es\fR" 4
-.IX Item "dts_es"
-.IP "\fBdts_96_24\fR" 4
-.IX Item "dts_96_24"
-.IP "\fBdts_hd_hra\fR" 4
-.IX Item "dts_hd_hra"
-.IP "\fBdts_hd_ma\fR" 4
-.IX Item "dts_hd_ma"
-.RE
-.RS 4
-.RE
-.IP "\fBlevel\fR \fIinteger\fR \fB(\fR\fIencoding,audio,video\fR\fB)\fR" 4
-.IX Item "level integer (encoding,audio,video)"
-.PD
-Possible values:
-.RS 4
-.IP "\fBunknown\fR" 4
-.IX Item "unknown"
-.RE
-.RS 4
-.RE
-.PD 0
-.IP "\fBlowres\fR \fIinteger\fR \fB(\fR\fIdecoding,audio,video\fR\fB)\fR" 4
-.IX Item "lowres integer (decoding,audio,video)"
-.PD
-Decode at 1= 1/2, 2=1/4, 3=1/8 resolutions.
-.IP "\fBskip_threshold\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "skip_threshold integer (encoding,video)"
-Set frame skip threshold.
-.IP "\fBskip_factor\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "skip_factor integer (encoding,video)"
-Set frame skip factor.
-.IP "\fBskip_exp\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "skip_exp integer (encoding,video)"
-Set frame skip exponent.
-.IP "\fBskipcmp\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "skipcmp integer (encoding,video)"
-Set frame skip compare function.
-.Sp
-Possible values:
-.RS 4
-.IP "\fBsad\fR" 4
-.IX Item "sad"
-sum of absolute differences, fast (default)
-.IP "\fBsse\fR" 4
-.IX Item "sse"
-sum of squared errors
-.IP "\fBsatd\fR" 4
-.IX Item "satd"
-sum of absolute Hadamard transformed differences
-.IP "\fBdct\fR" 4
-.IX Item "dct"
-sum of absolute \s-1DCT\s0 transformed differences
-.IP "\fBpsnr\fR" 4
-.IX Item "psnr"
-sum of squared quantization errors (avoid, low quality)
-.IP "\fBbit\fR" 4
-.IX Item "bit"
-number of bits needed for the block
-.IP "\fBrd\fR" 4
-.IX Item "rd"
-rate distortion optimal, slow
-.IP "\fBzero\fR" 4
-.IX Item "zero"
-0
-.IP "\fBvsad\fR" 4
-.IX Item "vsad"
-sum of absolute vertical differences
-.IP "\fBvsse\fR" 4
-.IX Item "vsse"
-sum of squared vertical differences
-.IP "\fBnsse\fR" 4
-.IX Item "nsse"
-noise preserving sum of squared differences
-.IP "\fBw53\fR" 4
-.IX Item "w53"
-5/3 wavelet, only used in snow
-.IP "\fBw97\fR" 4
-.IX Item "w97"
-9/7 wavelet, only used in snow
-.IP "\fBdctmax\fR" 4
-.IX Item "dctmax"
-.PD 0
-.IP "\fBchroma\fR" 4
-.IX Item "chroma"
-.RE
-.RS 4
-.RE
-.IP "\fBborder_mask\fR \fIfloat\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "border_mask float (encoding,video)"
-.PD
-Increase the quantizer for macroblocks close to borders.
-.IP "\fBmblmin\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "mblmin integer (encoding,video)"
-Set min macroblock lagrange factor (\s-1VBR\s0).
-.IP "\fBmblmax\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "mblmax integer (encoding,video)"
-Set max macroblock lagrange factor (\s-1VBR\s0).
-.IP "\fBmepc\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "mepc integer (encoding,video)"
-Set motion estimation bitrate penalty compensation (1.0 = 256).
-.IP "\fBskip_loop_filter\fR \fIinteger\fR \fB(\fR\fIdecoding,video\fR\fB)\fR" 4
-.IX Item "skip_loop_filter integer (decoding,video)"
-.PD 0
-.IP "\fBskip_idct\fR        \fIinteger\fR \fB(\fR\fIdecoding,video\fR\fB)\fR" 4
-.IX Item "skip_idct        integer (decoding,video)"
-.IP "\fBskip_frame\fR       \fIinteger\fR \fB(\fR\fIdecoding,video\fR\fB)\fR" 4
-.IX Item "skip_frame       integer (decoding,video)"
-.PD
-Make decoder discard processing depending on the frame type selected
-by the option value.
-.Sp
-\&\fBskip_loop_filter\fR skips frame loop filtering, \fBskip_idct\fR
-skips frame IDCT/dequantization, \fBskip_frame\fR skips decoding.
-.Sp
-Possible values:
-.RS 4
-.IP "\fBnone\fR" 4
-.IX Item "none"
-Discard no frame.
-.IP "\fBdefault\fR" 4
-.IX Item "default"
-Discard useless frames like 0\-sized frames.
-.IP "\fBnoref\fR" 4
-.IX Item "noref"
-Discard all non-reference frames.
-.IP "\fBbidir\fR" 4
-.IX Item "bidir"
-Discard all bidirectional frames.
-.IP "\fBnokey\fR" 4
-.IX Item "nokey"
-Discard all frames excepts keyframes.
-.IP "\fBall\fR" 4
-.IX Item "all"
-Discard all frames.
-.RE
-.RS 4
-.Sp
-Default value is \fBdefault\fR.
-.RE
-.IP "\fBbidir_refine\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "bidir_refine integer (encoding,video)"
-Refine the two motion vectors used in bidirectional macroblocks.
-.IP "\fBbrd_scale\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "brd_scale integer (encoding,video)"
-Downscale frames for dynamic B\-frame decision.
-.IP "\fBkeyint_min\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "keyint_min integer (encoding,video)"
-Set minimum interval between IDR\-frames.
-.IP "\fBrefs\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "refs integer (encoding,video)"
-Set reference frames to consider for motion compensation.
-.IP "\fBchromaoffset\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "chromaoffset integer (encoding,video)"
-Set chroma qp offset from luma.
-.IP "\fBtrellis\fR \fIinteger\fR \fB(\fR\fIencoding,audio,video\fR\fB)\fR" 4
-.IX Item "trellis integer (encoding,audio,video)"
-Set rate-distortion optimal quantization.
-.IP "\fBsc_factor\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "sc_factor integer (encoding,video)"
-Set value multiplied by qscale for each frame and added to
-scene_change_score.
-.IP "\fBmv0_threshold\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "mv0_threshold integer (encoding,video)"
-.PD 0
-.IP "\fBb_sensitivity\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "b_sensitivity integer (encoding,video)"
-.PD
-Adjust sensitivity of b_frame_strategy 1.
-.IP "\fBcompression_level\fR \fIinteger\fR \fB(\fR\fIencoding,audio,video\fR\fB)\fR" 4
-.IX Item "compression_level integer (encoding,audio,video)"
-.PD 0
-.IP "\fBmin_prediction_order\fR \fIinteger\fR \fB(\fR\fIencoding,audio\fR\fB)\fR" 4
-.IX Item "min_prediction_order integer (encoding,audio)"
-.IP "\fBmax_prediction_order\fR \fIinteger\fR \fB(\fR\fIencoding,audio\fR\fB)\fR" 4
-.IX Item "max_prediction_order integer (encoding,audio)"
-.IP "\fBtimecode_frame_start\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "timecode_frame_start integer (encoding,video)"
-.PD
-Set \s-1GOP\s0 timecode frame start number, in non drop frame format.
-.IP "\fBrequest_channels\fR \fIinteger\fR \fB(\fR\fIdecoding,audio\fR\fB)\fR" 4
-.IX Item "request_channels integer (decoding,audio)"
-Set desired number of audio channels.
-.IP "\fBbits_per_raw_sample\fR \fIinteger\fR" 4
-.IX Item "bits_per_raw_sample integer"
-.PD 0
-.IP "\fBchannel_layout\fR \fIinteger\fR \fB(\fR\fIdecoding/encoding,audio\fR\fB)\fR" 4
-.IX Item "channel_layout integer (decoding/encoding,audio)"
-.PD
-Possible values:
-.RS 4
-.RE
-.RS 4
-.RE
-.IP "\fBrequest_channel_layout\fR \fIinteger\fR \fB(\fR\fIdecoding,audio\fR\fB)\fR" 4
-.IX Item "request_channel_layout integer (decoding,audio)"
-Possible values:
-.RS 4
-.RE
-.RS 4
-.RE
-.IP "\fBrc_max_vbv_use\fR \fIfloat\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "rc_max_vbv_use float (encoding,video)"
-.PD 0
-.IP "\fBrc_min_vbv_use\fR \fIfloat\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "rc_min_vbv_use float (encoding,video)"
-.IP "\fBticks_per_frame\fR \fIinteger\fR \fB(\fR\fIdecoding/encoding,audio,video\fR\fB)\fR" 4
-.IX Item "ticks_per_frame integer (decoding/encoding,audio,video)"
-.IP "\fBcolor_primaries\fR \fIinteger\fR \fB(\fR\fIdecoding/encoding,video\fR\fB)\fR" 4
-.IX Item "color_primaries integer (decoding/encoding,video)"
-.IP "\fBcolor_trc\fR \fIinteger\fR \fB(\fR\fIdecoding/encoding,video\fR\fB)\fR" 4
-.IX Item "color_trc integer (decoding/encoding,video)"
-.IP "\fBcolorspace\fR \fIinteger\fR \fB(\fR\fIdecoding/encoding,video\fR\fB)\fR" 4
-.IX Item "colorspace integer (decoding/encoding,video)"
-.IP "\fBcolor_range\fR \fIinteger\fR \fB(\fR\fIdecoding/encoding,video\fR\fB)\fR" 4
-.IX Item "color_range integer (decoding/encoding,video)"
-.IP "\fBchroma_sample_location\fR \fIinteger\fR \fB(\fR\fIdecoding/encoding,video\fR\fB)\fR" 4
-.IX Item "chroma_sample_location integer (decoding/encoding,video)"
-.IP "\fBlog_level_offset\fR \fIinteger\fR" 4
-.IX Item "log_level_offset integer"
-.PD
-Set the log level offset.
-.IP "\fBslices\fR \fIinteger\fR \fB(\fR\fIencoding,video\fR\fB)\fR" 4
-.IX Item "slices integer (encoding,video)"
-Number of slices, used in parallelized encoding.
-.IP "\fBthread_type\fR \fIflags\fR \fB(\fR\fIdecoding/encoding,video\fR\fB)\fR" 4
-.IX Item "thread_type flags (decoding/encoding,video)"
-Select multithreading type.
-.Sp
-Possible values:
-.RS 4
-.IP "\fBslice\fR" 4
-.IX Item "slice"
-.PD 0
-.IP "\fBframe\fR" 4
-.IX Item "frame"
-.RE
-.RS 4
-.RE
-.IP "\fBaudio_service_type\fR \fIinteger\fR \fB(\fR\fIencoding,audio\fR\fB)\fR" 4
-.IX Item "audio_service_type integer (encoding,audio)"
-.PD
-Set audio service type.
-.Sp
-Possible values:
-.RS 4
-.IP "\fBma\fR" 4
-.IX Item "ma"
-Main Audio Service
-.IP "\fBef\fR" 4
-.IX Item "ef"
-Effects
-.IP "\fBvi\fR" 4
-.IX Item "vi"
-Visually Impaired
-.IP "\fBhi\fR" 4
-.IX Item "hi"
-Hearing Impaired
-.IP "\fBdi\fR" 4
-.IX Item "di"
-Dialogue
-.IP "\fBco\fR" 4
-.IX Item "co"
-Commentary
-.IP "\fBem\fR" 4
-.IX Item "em"
-Emergency
-.IP "\fBvo\fR" 4
-.IX Item "vo"
-Voice Over
-.IP "\fBka\fR" 4
-.IX Item "ka"
-Karaoke
-.RE
-.RS 4
-.RE
-.IP "\fBrequest_sample_fmt\fR \fIsample_fmt\fR \fB(\fR\fIdecoding,audio\fR\fB)\fR" 4
-.IX Item "request_sample_fmt sample_fmt (decoding,audio)"
-Set sample format audio decoders should prefer. Default value is
-\&\f(CW\*(C`none\*(C'\fR.
-.IP "\fBpkt_timebase\fR \fIrational number\fR" 4
-.IX Item "pkt_timebase rational number"
-.PD 0
-.IP "\fBsub_charenc\fR \fIencoding\fR \fB(\fR\fIdecoding,subtitles\fR\fB)\fR" 4
-.IX Item "sub_charenc encoding (decoding,subtitles)"
-.PD
-Set the input subtitles character encoding.
-.IP "\fBfield_order\fR  \fIfield_order\fR \fB(\fR\fIvideo\fR\fB)\fR" 4
-.IX Item "field_order  field_order (video)"
-Set/override the field order of the video.
-Possible values:
-.RS 4
-.IP "\fBprogressive\fR" 4
-.IX Item "progressive"
-Progressive video
-.IP "\fBtt\fR" 4
-.IX Item "tt"
-Interlaced video, top field coded and displayed first
-.IP "\fBbb\fR" 4
-.IX Item "bb"
-Interlaced video, bottom field coded and displayed first
-.IP "\fBtb\fR" 4
-.IX Item "tb"
-Interlaced video, top coded first, bottom displayed first
-.IP "\fBbt\fR" 4
-.IX Item "bt"
-Interlaced video, bottom coded first, top displayed first
-.RE
-.RS 4
-.RE
-.IP "\fBskip_alpha\fR \fIinteger\fR \fB(\fR\fIdecoding,video\fR\fB)\fR" 4
-.IX Item "skip_alpha integer (decoding,video)"
-Set to 1 to disable processing alpha (transparency). This works like the
-\&\fBgray\fR flag in the \fBflags\fR option which skips chroma information
-instead of alpha. Default is 0.
-.SH "DECODERS"
-.IX Header "DECODERS"
-Decoders are configured elements in FFmpeg which allow the decoding of
-multimedia streams.
-.PP
-When you configure your FFmpeg build, all the supported native decoders
-are enabled by default. Decoders requiring an external library must be enabled
-manually via the corresponding \f(CW\*(C`\-\-enable\-lib\*(C'\fR option. You can list all
-available decoders using the configure option \f(CW\*(C`\-\-list\-decoders\*(C'\fR.
-.PP
-You can disable all the decoders with the configure option
-\&\f(CW\*(C`\-\-disable\-decoders\*(C'\fR and selectively enable / disable single decoders
-with the options \f(CW\*(C`\-\-enable\-decoder=\f(CI\s-1DECODER\s0\f(CW\*(C'\fR /
-\&\f(CW\*(C`\-\-disable\-decoder=\f(CI\s-1DECODER\s0\f(CW\*(C'\fR.
-.PP
-The option \f(CW\*(C`\-codecs\*(C'\fR of the ff* tools will display the list of
-enabled decoders.
-.SH "VIDEO DECODERS"
-.IX Header "VIDEO DECODERS"
-A description of some of the currently available video decoders
-follows.
-.Sh "rawvideo"
-.IX Subsection "rawvideo"
-Raw video decoder.
-.PP
-This decoder decodes rawvideo streams.
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.IP "\fBtop\fR \fItop_field_first\fR" 4
-.IX Item "top top_field_first"
-Specify the assumed field type of the input video.
-.RS 4
-.IP "\fB\-1\fR" 4
-.IX Item "-1"
-the video is assumed to be progressive (default)
-.IP "\fB0\fR" 4
-.IX Item "0"
-bottom-field-first is assumed
-.IP "\fB1\fR" 4
-.IX Item "1"
-top-field-first is assumed
-.RE
-.RS 4
-.RE
-.SH "AUDIO DECODERS"
-.IX Header "AUDIO DECODERS"
-.Sh "ffwavesynth"
-.IX Subsection "ffwavesynth"
-Internal wave synthetizer.
-.PP
-This decoder generates wave patterns according to predefined sequences. Its
-use is purely internal and the format of the data it accepts is not publicly
-documented.
-.Sh "libcelt"
-.IX Subsection "libcelt"
-libcelt decoder wrapper.
-.PP
-libcelt allows libavcodec to decode the Xiph \s-1CELT\s0 ultra-low delay audio codec.
-Requires the presence of the libcelt headers and library during configuration.
-You need to explicitly configure the build with \f(CW\*(C`\-\-enable\-libcelt\*(C'\fR.
-.Sh "libgsm"
-.IX Subsection "libgsm"
-libgsm decoder wrapper.
-.PP
-libgsm allows libavcodec to decode the \s-1GSM\s0 full rate audio codec. Requires
-the presence of the libgsm headers and library during configuration. You need
-to explicitly configure the build with \f(CW\*(C`\-\-enable\-libgsm\*(C'\fR.
-.PP
-This decoder supports both the ordinary \s-1GSM\s0 and the Microsoft variant.
-.Sh "libilbc"
-.IX Subsection "libilbc"
-libilbc decoder wrapper.
-.PP
-libilbc allows libavcodec to decode the Internet Low Bitrate Codec (iLBC)
-audio codec. Requires the presence of the libilbc headers and library during
-configuration. You need to explicitly configure the build with
-\&\f(CW\*(C`\-\-enable\-libilbc\*(C'\fR.
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.PP
-The following option is supported by the libilbc wrapper.
-.IP "\fBenhance\fR" 4
-.IX Item "enhance"
-Enable the enhancement of the decoded audio when set to 1. The default
-value is 0 (disabled).
-.Sh "libopencore-amrnb"
-.IX Subsection "libopencore-amrnb"
-libopencore-amrnb decoder wrapper.
-.PP
-libopencore-amrnb allows libavcodec to decode the Adaptive Multi-Rate
-Narrowband audio codec. Using it requires the presence of the
-libopencore-amrnb headers and library during configuration. You need to
-explicitly configure the build with \f(CW\*(C`\-\-enable\-libopencore\-amrnb\*(C'\fR.
-.PP
-An FFmpeg native decoder for AMR-NB exists, so users can decode AMR-NB
-without this library.
-.Sh "libopencore-amrwb"
-.IX Subsection "libopencore-amrwb"
-libopencore-amrwb decoder wrapper.
-.PP
-libopencore-amrwb allows libavcodec to decode the Adaptive Multi-Rate
-Wideband audio codec. Using it requires the presence of the
-libopencore-amrwb headers and library during configuration. You need to
-explicitly configure the build with \f(CW\*(C`\-\-enable\-libopencore\-amrwb\*(C'\fR.
-.PP
-An FFmpeg native decoder for AMR-WB exists, so users can decode AMR-WB
-without this library.
-.Sh "libopus"
-.IX Subsection "libopus"
-libopus decoder wrapper.
-.PP
-libopus allows libavcodec to decode the Opus Interactive Audio Codec.
-Requires the presence of the libopus headers and library during
-configuration. You need to explicitly configure the build with
-\&\f(CW\*(C`\-\-enable\-libopus\*(C'\fR.
-.SH "SUBTITLES DECODERS"
-.IX Header "SUBTITLES DECODERS"
-.Sh "dvdsub"
-.IX Subsection "dvdsub"
-This codec decodes the bitmap subtitles used in DVDs; the same subtitles can
-also be found in VobSub file pairs and in some Matroska files.
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.IP "\fBpalette\fR" 4
-.IX Item "palette"
-Specify the global palette used by the bitmaps. When stored in VobSub, the
-palette is normally specified in the index file; in Matroska, the palette is
-stored in the codec extra-data in the same format as in VobSub. In DVDs, the
-palette is stored in the \s-1IFO\s0 file, and therefore not available when reading
-from dumped \s-1VOB\s0 files.
-.Sp
-The format for this option is a string containing 16 24\-bits hexadecimal
-numbers (without 0x prefix) separated by comas, for example \f(CW\*(C`0d00ee,
-ee450d, 101010, eaeaea, 0ce60b, ec14ed, ebff0b, 0d617a, 7b7b7b, d1d1d1,
-7b2a0e, 0d950c, 0f007b, cf0dec, cfa80c, 7c127b\*(C'\fR.
-.Sh "libzvbi-teletext"
-.IX Subsection "libzvbi-teletext"
-Libzvbi allows libavcodec to decode \s-1DVB\s0 teletext pages and \s-1DVB\s0 teletext
-subtitles. Requires the presence of the libzvbi headers and library during
-configuration. You need to explicitly configure the build with
-\&\f(CW\*(C`\-\-enable\-libzvbi\*(C'\fR.
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.IP "\fBtxt_page\fR" 4
-.IX Item "txt_page"
-List of teletext page numbers to decode. You may use the special * string to
-match all pages. Pages that do not match the specified list are dropped.
-Default value is *.
-.IP "\fBtxt_chop_top\fR" 4
-.IX Item "txt_chop_top"
-Discards the top teletext line. Default value is 1.
-.IP "\fBtxt_format\fR" 4
-.IX Item "txt_format"
-Specifies the format of the decoded subtitles. The teletext decoder is capable
-of decoding the teletext pages to bitmaps or to simple text, you should use
-\&\*(L"bitmap\*(R" for teletext pages, because certain graphics and colors cannot be
-expressed in simple text. You might use \*(L"text\*(R" for teletext based subtitles if
-your application can handle simple text based subtitles. Default value is
-bitmap.
-.IP "\fBtxt_left\fR" 4
-.IX Item "txt_left"
-X offset of generated bitmaps, default is 0.
-.IP "\fBtxt_top\fR" 4
-.IX Item "txt_top"
-Y offset of generated bitmaps, default is 0.
-.IP "\fBtxt_chop_spaces\fR" 4
-.IX Item "txt_chop_spaces"
-Chops leading and trailing spaces and removes empty lines from the generated
-text. This option is useful for teletext based subtitles where empty spaces may
-be present at the start or at the end of the lines or empty lines may be
-present between the subtitle lines because of double-sized teletext charactes.
-Default value is 1.
-.IP "\fBtxt_duration\fR" 4
-.IX Item "txt_duration"
-Sets the display duration of the decoded teletext pages or subtitles in
-miliseconds. Default value is 30000 which is 30 seconds.
-.IP "\fBtxt_transparent\fR" 4
-.IX Item "txt_transparent"
-Force transparent background of the generated teletext bitmaps. Default value
-is 0 which means an opaque (black) background.
-.SH "ENCODERS"
-.IX Header "ENCODERS"
-Encoders are configured elements in FFmpeg which allow the encoding of
-multimedia streams.
-.PP
-When you configure your FFmpeg build, all the supported native encoders
-are enabled by default. Encoders requiring an external library must be enabled
-manually via the corresponding \f(CW\*(C`\-\-enable\-lib\*(C'\fR option. You can list all
-available encoders using the configure option \f(CW\*(C`\-\-list\-encoders\*(C'\fR.
-.PP
-You can disable all the encoders with the configure option
-\&\f(CW\*(C`\-\-disable\-encoders\*(C'\fR and selectively enable / disable single encoders
-with the options \f(CW\*(C`\-\-enable\-encoder=\f(CI\s-1ENCODER\s0\f(CW\*(C'\fR /
-\&\f(CW\*(C`\-\-disable\-encoder=\f(CI\s-1ENCODER\s0\f(CW\*(C'\fR.
-.PP
-The option \f(CW\*(C`\-codecs\*(C'\fR of the ff* tools will display the list of
-enabled encoders.
-.SH "AUDIO ENCODERS"
-.IX Header "AUDIO ENCODERS"
-A description of some of the currently available audio encoders
-follows.
-.Sh "aac"
-.IX Subsection "aac"
-Advanced Audio Coding (\s-1AAC\s0) encoder.
-.PP
-This encoder is an experimental FFmpeg-native \s-1AAC\s0 encoder. Currently only the
-low complexity (\s-1AAC\-LC\s0) profile is supported. To use this encoder, you must set
-\&\fBstrict\fR option to \fBexperimental\fR or lower.
-.PP
-As this encoder is experimental, unexpected behavior may exist from time to
-time. For a more stable \s-1AAC\s0 encoder, see libvo\-aacenc. However, be warned
-that it has a worse quality reported by some users.
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.IP "\fBb\fR" 4
-.IX Item "b"
-Set bit rate in bits/s. Setting this automatically activates constant bit rate
-(\s-1CBR\s0) mode.
-.IP "\fBq\fR" 4
-.IX Item "q"
-Set quality for variable bit rate (\s-1VBR\s0) mode. This option is valid only using
-the \fBffmpeg\fR command-line tool. For library interface users, use
-\&\fBglobal_quality\fR.
-.IP "\fBstereo_mode\fR" 4
-.IX Item "stereo_mode"
-Set stereo encoding mode. Possible values:
-.RS 4
-.IP "\fBauto\fR" 4
-.IX Item "auto"
-Automatically selected by the encoder.
-.IP "\fBms_off\fR" 4
-.IX Item "ms_off"
-Disable middle/side encoding. This is the default.
-.IP "\fBms_force\fR" 4
-.IX Item "ms_force"
-Force middle/side encoding.
-.RE
-.RS 4
-.RE
-.IP "\fBaac_coder\fR" 4
-.IX Item "aac_coder"
-Set \s-1AAC\s0 encoder coding method. Possible values:
-.RS 4
-.IP "\fBfaac\fR" 4
-.IX Item "faac"
-FAAC-inspired method.
-.Sp
-This method is a simplified reimplementation of the method used in \s-1FAAC\s0, which
-sets thresholds proportional to the band energies, and then decreases all the
-thresholds with quantizer steps to find the appropriate quantization with
-distortion below threshold band by band.
-.Sp
-The quality of this method is comparable to the two loop searching method
-descibed below, but somewhat a little better and slower.
-.IP "\fBanmr\fR" 4
-.IX Item "anmr"
-Average noise to mask ratio (\s-1ANMR\s0) trellis-based solution.
-.Sp
-This has a theoretic best quality out of all the coding methods, but at the
-cost of the slowest speed.
-.IP "\fBtwoloop\fR" 4
-.IX Item "twoloop"
-Two loop searching (\s-1TLS\s0) method.
-.Sp
-This method first sets quantizers depending on band thresholds and then tries
-to find an optimal combination by adding or subtracting a specific value from
-all quantizers and adjusting some individual quantizer a little.
-.Sp
-This method produces similar quality with the \s-1FAAC\s0 method and is the default.
-.IP "\fBfast\fR" 4
-.IX Item "fast"
-Constant quantizer method.
-.Sp
-This method sets a constant quantizer for all bands. This is the fastest of all
-the methods, yet produces the worst quality.
-.RE
-.RS 4
-.RE
-.Sh "ac3 and ac3_fixed"
-.IX Subsection "ac3 and ac3_fixed"
-\&\s-1AC\-3\s0 audio encoders.
-.PP
-These encoders implement part of \s-1ATSC\s0 A/52:2010 and \s-1ETSI\s0 \s-1TS\s0 102 366, as well as
-the undocumented RealAudio 3 (a.k.a. dnet).
-.PP
-The \fIac3\fR encoder uses floating-point math, while the \fIac3_fixed\fR
-encoder only uses fixed-point integer math. This does not mean that one is
-always faster, just that one or the other may be better suited to a
-particular system. The floating-point encoder will generally produce better
-quality audio for a given bitrate. The \fIac3_fixed\fR encoder is not the
-default codec for any of the output formats, so it must be specified explicitly
-using the option \f(CW\*(C`\-acodec ac3_fixed\*(C'\fR in order to use it.
-.PP
-\fI\s-1AC\-3\s0 Metadata\fR
-.IX Subsection "AC-3 Metadata"
-.PP
-The \s-1AC\-3\s0 metadata options are used to set parameters that describe the audio,
-but in most cases do not affect the audio encoding itself. Some of the options
-do directly affect or influence the decoding and playback of the resulting
-bitstream, while others are just for informational purposes. A few of the
-options will add bits to the output stream that could otherwise be used for
-audio data, and will thus affect the quality of the output. Those will be
-indicated accordingly with a note in the option list below.
-.PP
-These parameters are described in detail in several publicly-available
-documents.
-.IP "*<<\fBhttp://www.atsc.org/cms/standards/a_52\-2010.pdf\fR>>" 4
-.IX Item "*<<http://www.atsc.org/cms/standards/a_52-2010.pdf>>"
-.PD 0
-.IP "*<<\fBhttp://www.atsc.org/cms/standards/a_54a_with_corr_1.pdf\fR>>" 4
-.IX Item "*<<http://www.atsc.org/cms/standards/a_54a_with_corr_1.pdf>>"
-.IP "*<<\fBhttp://www.dolby.com/uploadedFiles/zz\-_Shared_Assets/English_PDFs/Professional/18_Metadata.Guide.pdf\fR>>" 4
-.IX Item "*<<http://www.dolby.com/uploadedFiles/zz-_Shared_Assets/English_PDFs/Professional/18_Metadata.Guide.pdf>>"
-.IP "*<<\fBhttp://www.dolby.com/uploadedFiles/zz\-_Shared_Assets/English_PDFs/Professional/46_DDEncodingGuidelines.pdf\fR>>" 4
-.IX Item "*<<http://www.dolby.com/uploadedFiles/zz-_Shared_Assets/English_PDFs/Professional/46_DDEncodingGuidelines.pdf>>"
-.PD
-.PP
-Metadata Control Options
-.IX Subsection "Metadata Control Options"
-.IP "\fB\-per_frame_metadata\fR \fIboolean\fR" 4
-.IX Item "-per_frame_metadata boolean"
-Allow Per-Frame Metadata. Specifies if the encoder should check for changing
-metadata for each frame.
-.RS 4
-.IP "\fB0\fR" 4
-.IX Item "0"
-The metadata values set at initialization will be used for every frame in the
-stream. (default)
-.IP "\fB1\fR" 4
-.IX Item "1"
-Metadata values can be changed before encoding each frame.
-.RE
-.RS 4
-.RE
-.PP
-Downmix Levels
-.IX Subsection "Downmix Levels"
-.IP "\fB\-center_mixlev\fR \fIlevel\fR" 4
-.IX Item "-center_mixlev level"
-Center Mix Level. The amount of gain the decoder should apply to the center
-channel when downmixing to stereo. This field will only be written to the
-bitstream if a center channel is present. The value is specified as a scale
-factor. There are 3 valid values:
-.RS 4
-.IP "\fB0.707\fR" 4
-.IX Item "0.707"
-Apply \-3dB gain
-.IP "\fB0.595\fR" 4
-.IX Item "0.595"
-Apply \-4.5dB gain (default)
-.IP "\fB0.500\fR" 4
-.IX Item "0.500"
-Apply \-6dB gain
-.RE
-.RS 4
-.RE
-.IP "\fB\-surround_mixlev\fR \fIlevel\fR" 4
-.IX Item "-surround_mixlev level"
-Surround Mix Level. The amount of gain the decoder should apply to the surround
-channel(s) when downmixing to stereo. This field will only be written to the
-bitstream if one or more surround channels are present. The value is specified
-as a scale factor.  There are 3 valid values:
-.RS 4
-.IP "\fB0.707\fR" 4
-.IX Item "0.707"
-Apply \-3dB gain
-.IP "\fB0.500\fR" 4
-.IX Item "0.500"
-Apply \-6dB gain (default)
-.IP "\fB0.000\fR" 4
-.IX Item "0.000"
-Silence Surround Channel(s)
-.RE
-.RS 4
-.RE
-.PP
-Audio Production Information
-.IX Subsection "Audio Production Information"
-.PP
-Audio Production Information is optional information describing the mixing
-environment.  Either none or both of the fields are written to the bitstream.
-.IP "\fB\-mixing_level\fR \fInumber\fR" 4
-.IX Item "-mixing_level number"
-Mixing Level. Specifies peak sound pressure level (\s-1SPL\s0) in the production
-environment when the mix was mastered. Valid values are 80 to 111, or \-1 for
-unknown or not indicated. The default value is \-1, but that value cannot be
-used if the Audio Production Information is written to the bitstream. Therefore,
-if the \f(CW\*(C`room_type\*(C'\fR option is not the default value, the \f(CW\*(C`mixing_level\*(C'\fR
-option must not be \-1.
-.IP "\fB\-room_type\fR \fItype\fR" 4
-.IX Item "-room_type type"
-Room Type. Describes the equalization used during the final mixing session at
-the studio or on the dubbing stage. A large room is a dubbing stage with the
-industry standard X\-curve equalization; a small room has flat equalization.
-This field will not be written to the bitstream if both the \f(CW\*(C`mixing_level\*(C'\fR
-option and the \f(CW\*(C`room_type\*(C'\fR option have the default values.
-.RS 4
-.IP "\fB0\fR" 4
-.IX Item "0"
-.PD 0
-.IP "\fBnotindicated\fR" 4
-.IX Item "notindicated"
-.PD
-Not Indicated (default)
-.IP "\fB1\fR" 4
-.IX Item "1"
-.PD 0
-.IP "\fBlarge\fR" 4
-.IX Item "large"
-.PD
-Large Room
-.IP "\fB2\fR" 4
-.IX Item "2"
-.PD 0
-.IP "\fBsmall\fR" 4
-.IX Item "small"
-.PD
-Small Room
-.RE
-.RS 4
-.RE
-.PP
-Other Metadata Options
-.IX Subsection "Other Metadata Options"
-.IP "\fB\-copyright\fR \fIboolean\fR" 4
-.IX Item "-copyright boolean"
-Copyright Indicator. Specifies whether a copyright exists for this audio.
-.RS 4
-.IP "\fB0\fR" 4
-.IX Item "0"
-.PD 0
-.IP "\fBoff\fR" 4
-.IX Item "off"
-.PD
-No Copyright Exists (default)
-.IP "\fB1\fR" 4
-.IX Item "1"
-.PD 0
-.IP "\fBon\fR" 4
-.IX Item "on"
-.PD
-Copyright Exists
-.RE
-.RS 4
-.RE
-.IP "\fB\-dialnorm\fR \fIvalue\fR" 4
-.IX Item "-dialnorm value"
-Dialogue Normalization. Indicates how far the average dialogue level of the
-program is below digital 100% full scale (0 dBFS). This parameter determines a
-level shift during audio reproduction that sets the average volume of the
-dialogue to a preset level. The goal is to match volume level between program
-sources. A value of \-31dB will result in no volume level change, relative to
-the source volume, during audio reproduction. Valid values are whole numbers in
-the range \-31 to \-1, with \-31 being the default.
-.IP "\fB\-dsur_mode\fR \fImode\fR" 4
-.IX Item "-dsur_mode mode"
-Dolby Surround Mode. Specifies whether the stereo signal uses Dolby Surround
-(Pro Logic). This field will only be written to the bitstream if the audio
-stream is stereo. Using this option does \fB\s-1NOT\s0\fR mean the encoder will actually
-apply Dolby Surround processing.
-.RS 4
-.IP "\fB0\fR" 4
-.IX Item "0"
-.PD 0
-.IP "\fBnotindicated\fR" 4
-.IX Item "notindicated"
-.PD
-Not Indicated (default)
-.IP "\fB1\fR" 4
-.IX Item "1"
-.PD 0
-.IP "\fBoff\fR" 4
-.IX Item "off"
-.PD
-Not Dolby Surround Encoded
-.IP "\fB2\fR" 4
-.IX Item "2"
-.PD 0
-.IP "\fBon\fR" 4
-.IX Item "on"
-.PD
-Dolby Surround Encoded
-.RE
-.RS 4
-.RE
-.IP "\fB\-original\fR \fIboolean\fR" 4
-.IX Item "-original boolean"
-Original Bit Stream Indicator. Specifies whether this audio is from the
-original source and not a copy.
-.RS 4
-.IP "\fB0\fR" 4
-.IX Item "0"
-.PD 0
-.IP "\fBoff\fR" 4
-.IX Item "off"
-.PD
-Not Original Source
-.IP "\fB1\fR" 4
-.IX Item "1"
-.PD 0
-.IP "\fBon\fR" 4
-.IX Item "on"
-.PD
-Original Source (default)
-.RE
-.RS 4
-.RE
-.PP
-\fIExtended Bitstream Information\fR
-.IX Subsection "Extended Bitstream Information"
-.PP
-The extended bitstream options are part of the Alternate Bit Stream Syntax as
-specified in Annex D of the A/52:2010 standard. It is grouped into 2 parts.
-If any one parameter in a group is specified, all values in that group will be
-written to the bitstream.  Default values are used for those that are written
-but have not been specified.  If the mixing levels are written, the decoder
-will use these values instead of the ones specified in the \f(CW\*(C`center_mixlev\*(C'\fR
-and \f(CW\*(C`surround_mixlev\*(C'\fR options if it supports the Alternate Bit Stream
-Syntax.
-.PP
-Extended Bitstream Information \- Part 1
-.IX Subsection "Extended Bitstream Information - Part 1"
-.IP "\fB\-dmix_mode\fR \fImode\fR" 4
-.IX Item "-dmix_mode mode"
-Preferred Stereo Downmix Mode. Allows the user to select either Lt/Rt
-(Dolby Surround) or Lo/Ro (normal stereo) as the preferred stereo downmix mode.
-.RS 4
-.IP "\fB0\fR" 4
-.IX Item "0"
-.PD 0
-.IP "\fBnotindicated\fR" 4
-.IX Item "notindicated"
-.PD
-Not Indicated (default)
-.IP "\fB1\fR" 4
-.IX Item "1"
-.PD 0
-.IP "\fBltrt\fR" 4
-.IX Item "ltrt"
-.PD
-Lt/Rt Downmix Preferred
-.IP "\fB2\fR" 4
-.IX Item "2"
-.PD 0
-.IP "\fBloro\fR" 4
-.IX Item "loro"
-.PD
-Lo/Ro Downmix Preferred
-.RE
-.RS 4
-.RE
-.IP "\fB\-ltrt_cmixlev\fR \fIlevel\fR" 4
-.IX Item "-ltrt_cmixlev level"
-Lt/Rt Center Mix Level. The amount of gain the decoder should apply to the
-center channel when downmixing to stereo in Lt/Rt mode.
-.RS 4
-.IP "\fB1.414\fR" 4
-.IX Item "1.414"
-Apply +3dB gain
-.IP "\fB1.189\fR" 4
-.IX Item "1.189"
-Apply +1.5dB gain
-.IP "\fB1.000\fR" 4
-.IX Item "1.000"
-Apply 0dB gain
-.IP "\fB0.841\fR" 4
-.IX Item "0.841"
-Apply \-1.5dB gain
-.IP "\fB0.707\fR" 4
-.IX Item "0.707"
-Apply \-3.0dB gain
-.IP "\fB0.595\fR" 4
-.IX Item "0.595"
-Apply \-4.5dB gain (default)
-.IP "\fB0.500\fR" 4
-.IX Item "0.500"
-Apply \-6.0dB gain
-.IP "\fB0.000\fR" 4
-.IX Item "0.000"
-Silence Center Channel
-.RE
-.RS 4
-.RE
-.IP "\fB\-ltrt_surmixlev\fR \fIlevel\fR" 4
-.IX Item "-ltrt_surmixlev level"
-Lt/Rt Surround Mix Level. The amount of gain the decoder should apply to the
-surround channel(s) when downmixing to stereo in Lt/Rt mode.
-.RS 4
-.IP "\fB0.841\fR" 4
-.IX Item "0.841"
-Apply \-1.5dB gain
-.IP "\fB0.707\fR" 4
-.IX Item "0.707"
-Apply \-3.0dB gain
-.IP "\fB0.595\fR" 4
-.IX Item "0.595"
-Apply \-4.5dB gain
-.IP "\fB0.500\fR" 4
-.IX Item "0.500"
-Apply \-6.0dB gain (default)
-.IP "\fB0.000\fR" 4
-.IX Item "0.000"
-Silence Surround Channel(s)
-.RE
-.RS 4
-.RE
-.IP "\fB\-loro_cmixlev\fR \fIlevel\fR" 4
-.IX Item "-loro_cmixlev level"
-Lo/Ro Center Mix Level. The amount of gain the decoder should apply to the
-center channel when downmixing to stereo in Lo/Ro mode.
-.RS 4
-.IP "\fB1.414\fR" 4
-.IX Item "1.414"
-Apply +3dB gain
-.IP "\fB1.189\fR" 4
-.IX Item "1.189"
-Apply +1.5dB gain
-.IP "\fB1.000\fR" 4
-.IX Item "1.000"
-Apply 0dB gain
-.IP "\fB0.841\fR" 4
-.IX Item "0.841"
-Apply \-1.5dB gain
-.IP "\fB0.707\fR" 4
-.IX Item "0.707"
-Apply \-3.0dB gain
-.IP "\fB0.595\fR" 4
-.IX Item "0.595"
-Apply \-4.5dB gain (default)
-.IP "\fB0.500\fR" 4
-.IX Item "0.500"
-Apply \-6.0dB gain
-.IP "\fB0.000\fR" 4
-.IX Item "0.000"
-Silence Center Channel
-.RE
-.RS 4
-.RE
-.IP "\fB\-loro_surmixlev\fR \fIlevel\fR" 4
-.IX Item "-loro_surmixlev level"
-Lo/Ro Surround Mix Level. The amount of gain the decoder should apply to the
-surround channel(s) when downmixing to stereo in Lo/Ro mode.
-.RS 4
-.IP "\fB0.841\fR" 4
-.IX Item "0.841"
-Apply \-1.5dB gain
-.IP "\fB0.707\fR" 4
-.IX Item "0.707"
-Apply \-3.0dB gain
-.IP "\fB0.595\fR" 4
-.IX Item "0.595"
-Apply \-4.5dB gain
-.IP "\fB0.500\fR" 4
-.IX Item "0.500"
-Apply \-6.0dB gain (default)
-.IP "\fB0.000\fR" 4
-.IX Item "0.000"
-Silence Surround Channel(s)
-.RE
-.RS 4
-.RE
-.PP
-Extended Bitstream Information \- Part 2
-.IX Subsection "Extended Bitstream Information - Part 2"
-.IP "\fB\-dsurex_mode\fR \fImode\fR" 4
-.IX Item "-dsurex_mode mode"
-Dolby Surround \s-1EX\s0 Mode. Indicates whether the stream uses Dolby Surround \s-1EX\s0
-(7.1 matrixed to 5.1). Using this option does \fB\s-1NOT\s0\fR mean the encoder will actually
-apply Dolby Surround \s-1EX\s0 processing.
-.RS 4
-.IP "\fB0\fR" 4
-.IX Item "0"
-.PD 0
-.IP "\fBnotindicated\fR" 4
-.IX Item "notindicated"
-.PD
-Not Indicated (default)
-.IP "\fB1\fR" 4
-.IX Item "1"
-.PD 0
-.IP "\fBon\fR" 4
-.IX Item "on"
-.PD
-Dolby Surround \s-1EX\s0 Off
-.IP "\fB2\fR" 4
-.IX Item "2"
-.PD 0
-.IP "\fBoff\fR" 4
-.IX Item "off"
-.PD
-Dolby Surround \s-1EX\s0 On
-.RE
-.RS 4
-.RE
-.IP "\fB\-dheadphone_mode\fR \fImode\fR" 4
-.IX Item "-dheadphone_mode mode"
-Dolby Headphone Mode. Indicates whether the stream uses Dolby Headphone
-encoding (multi\-channel matrixed to 2.0 for use with headphones). Using this
-option does \fB\s-1NOT\s0\fR mean the encoder will actually apply Dolby Headphone
-processing.
-.RS 4
-.IP "\fB0\fR" 4
-.IX Item "0"
-.PD 0
-.IP "\fBnotindicated\fR" 4
-.IX Item "notindicated"
-.PD
-Not Indicated (default)
-.IP "\fB1\fR" 4
-.IX Item "1"
-.PD 0
-.IP "\fBon\fR" 4
-.IX Item "on"
-.PD
-Dolby Headphone Off
-.IP "\fB2\fR" 4
-.IX Item "2"
-.PD 0
-.IP "\fBoff\fR" 4
-.IX Item "off"
-.PD
-Dolby Headphone On
-.RE
-.RS 4
-.RE
-.IP "\fB\-ad_conv_type\fR \fItype\fR" 4
-.IX Item "-ad_conv_type type"
-A/D Converter Type. Indicates whether the audio has passed through \s-1HDCD\s0 A/D
-conversion.
-.RS 4
-.IP "\fB0\fR" 4
-.IX Item "0"
-.PD 0
-.IP "\fBstandard\fR" 4
-.IX Item "standard"
-.PD
-Standard A/D Converter (default)
-.IP "\fB1\fR" 4
-.IX Item "1"
-.PD 0
-.IP "\fBhdcd\fR" 4
-.IX Item "hdcd"
-.PD
-\&\s-1HDCD\s0 A/D Converter
-.RE
-.RS 4
-.RE
-.PP
-\fIOther \s-1AC\-3\s0 Encoding Options\fR
-.IX Subsection "Other AC-3 Encoding Options"
-.IP "\fB\-stereo_rematrixing\fR \fIboolean\fR" 4
-.IX Item "-stereo_rematrixing boolean"
-Stereo Rematrixing. Enables/Disables use of rematrixing for stereo input. This
-is an optional \s-1AC\-3\s0 feature that increases quality by selectively encoding
-the left/right channels as mid/side. This option is enabled by default, and it
-is highly recommended that it be left as enabled except for testing purposes.
-.PP
-\fIFloating-Point-Only \s-1AC\-3\s0 Encoding Options\fR
-.IX Subsection "Floating-Point-Only AC-3 Encoding Options"
-.PP
-These options are only valid for the floating-point encoder and do not exist
-for the fixed-point encoder due to the corresponding features not being
-implemented in fixed\-point.
-.IP "\fB\-channel_coupling\fR \fIboolean\fR" 4
-.IX Item "-channel_coupling boolean"
-Enables/Disables use of channel coupling, which is an optional \s-1AC\-3\s0 feature
-that increases quality by combining high frequency information from multiple
-channels into a single channel. The per-channel high frequency information is
-sent with less accuracy in both the frequency and time domains. This allows
-more bits to be used for lower frequencies while preserving enough information
-to reconstruct the high frequencies. This option is enabled by default for the
-floating-point encoder and should generally be left as enabled except for
-testing purposes or to increase encoding speed.
-.RS 4
-.IP "\fB\-1\fR" 4
-.IX Item "-1"
-.PD 0
-.IP "\fBauto\fR" 4
-.IX Item "auto"
-.PD
-Selected by Encoder (default)
-.IP "\fB0\fR" 4
-.IX Item "0"
-.PD 0
-.IP "\fBoff\fR" 4
-.IX Item "off"
-.PD
-Disable Channel Coupling
-.IP "\fB1\fR" 4
-.IX Item "1"
-.PD 0
-.IP "\fBon\fR" 4
-.IX Item "on"
-.PD
-Enable Channel Coupling
-.RE
-.RS 4
-.RE
-.IP "\fB\-cpl_start_band\fR \fInumber\fR" 4
-.IX Item "-cpl_start_band number"
-Coupling Start Band. Sets the channel coupling start band, from 1 to 15. If a
-value higher than the bandwidth is used, it will be reduced to 1 less than the
-coupling end band. If \fIauto\fR is used, the start band will be determined by
-the encoder based on the bit rate, sample rate, and channel layout. This option
-has no effect if channel coupling is disabled.
-.RS 4
-.IP "\fB\-1\fR" 4
-.IX Item "-1"
-.PD 0
-.IP "\fBauto\fR" 4
-.IX Item "auto"
-.PD
-Selected by Encoder (default)
-.RE
-.RS 4
-.RE
-.Sh "libmp3lame"
-.IX Subsection "libmp3lame"
-\&\s-1LAME\s0 (Lame Ain't an \s-1MP3\s0 Encoder) \s-1MP3\s0 encoder wrapper.
-.PP
-Requires the presence of the libmp3lame headers and library during
-configuration. You need to explicitly configure the build with
-\&\f(CW\*(C`\-\-enable\-libmp3lame\*(C'\fR.
-.PP
-See libshine for a fixed-point \s-1MP3\s0 encoder, although with a
-lower quality.
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.PP
-The following options are supported by the libmp3lame wrapper. The
-\&\fBlame\fR\-equivalent of the options are listed in parentheses.
-.IP "\fBb (\fR\fI\-b\fR\fB)\fR" 4
-.IX Item "b (-b)"
-Set bitrate expressed in bits/s for \s-1CBR\s0. \s-1LAME\s0 \f(CW\*(C`bitrate\*(C'\fR is
-expressed in kilobits/s.
-.IP "\fBq (\fR\fI\-V\fR\fB)\fR" 4
-.IX Item "q (-V)"
-Set constant quality setting for \s-1VBR\s0. This option is valid only
-using the \fBffmpeg\fR command-line tool. For library interface
-users, use \fBglobal_quality\fR.
-.IP "\fBcompression_level (\fR\fI\-q\fR\fB)\fR" 4
-.IX Item "compression_level (-q)"
-Set algorithm quality. Valid arguments are integers in the 0\-9 range,
-with 0 meaning highest quality but slowest, and 9 meaning fastest
-while producing the worst quality.
-.IP "\fBreservoir\fR" 4
-.IX Item "reservoir"
-Enable use of bit reservoir when set to 1. Default value is 1. \s-1LAME\s0
-has this enabled by default, but can be overriden by use
-\&\fB\-\-nores\fR option.
-.IP "\fBjoint_stereo (\fR\fI\-m j\fR\fB)\fR" 4
-.IX Item "joint_stereo (-m j)"
-Enable the encoder to use (on a frame by frame basis) either L/R
-stereo or mid/side stereo. Default value is 1.
-.Sh "libopencore-amrnb"
-.IX Subsection "libopencore-amrnb"
-OpenCORE Adaptive Multi-Rate Narrowband encoder.
-.PP
-Requires the presence of the libopencore-amrnb headers and library during
-configuration. You need to explicitly configure the build with
-\&\f(CW\*(C`\-\-enable\-libopencore\-amrnb \-\-enable\-version3\*(C'\fR.
-.PP
-This is a mono-only encoder. Officially it only supports 8000Hz sample rate,
-but you can override it by setting \fBstrict\fR to \fBunofficial\fR or
-lower.
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.IP "\fBb\fR" 4
-.IX Item "b"
-Set bitrate in bits per second. Only the following bitrates are supported,
-otherwise libavcodec will round to the nearest valid bitrate.
-.RS 4
-.IP "\fB4750\fR" 4
-.IX Item "4750"
-.PD 0
-.IP "\fB5150\fR" 4
-.IX Item "5150"
-.IP "\fB5900\fR" 4
-.IX Item "5900"
-.IP "\fB6700\fR" 4
-.IX Item "6700"
-.IP "\fB7400\fR" 4
-.IX Item "7400"
-.IP "\fB7950\fR" 4
-.IX Item "7950"
-.IP "\fB10200\fR" 4
-.IX Item "10200"
-.IP "\fB12200\fR" 4
-.IX Item "12200"
-.RE
-.RS 4
-.RE
-.IP "\fBdtx\fR" 4
-.IX Item "dtx"
-.PD
-Allow discontinuous transmission (generate comfort noise) when set to 1. The
-default value is 0 (disabled).
-.Sh "libshine"
-.IX Subsection "libshine"
-Shine Fixed-Point \s-1MP3\s0 encoder wrapper.
-.PP
-Shine is a fixed-point \s-1MP3\s0 encoder. It has a far better performance on
-platforms without an \s-1FPU\s0, e.g. armel CPUs, and some phones and tablets.
-However, as it is more targeted on performance than quality, it is not on par
-with \s-1LAME\s0 and other production-grade encoders quality\-wise. Also, according to
-the project's homepage, this encoder may not be free of bugs as the code was
-written a long time ago and the project was dead for at least 5 years.
-.PP
-This encoder only supports stereo and mono input. This is also CBR\-only.
-.PP
-The original project (last updated in early 2007) is at
-<\fBhttp://sourceforge.net/projects/libshine\-fxp/\fR>. We only support the
-updated fork by the Savonet/Liquidsoap project at <\fBhttps://github.com/savonet/shine\fR>.
-.PP
-Requires the presence of the libshine headers and library during
-configuration. You need to explicitly configure the build with
-\&\f(CW\*(C`\-\-enable\-libshine\*(C'\fR.
-.PP
-See also libmp3lame.
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.PP
-The following options are supported by the libshine wrapper. The
-\&\fBshineenc\fR\-equivalent of the options are listed in parentheses.
-.IP "\fBb (\fR\fI\-b\fR\fB)\fR" 4
-.IX Item "b (-b)"
-Set bitrate expressed in bits/s for \s-1CBR\s0. \fBshineenc\fR \fB\-b\fR option
-is expressed in kilobits/s.
-.Sh "libtwolame"
-.IX Subsection "libtwolame"
-TwoLAME \s-1MP2\s0 encoder wrapper.
-.PP
-Requires the presence of the libtwolame headers and library during
-configuration. You need to explicitly configure the build with
-\&\f(CW\*(C`\-\-enable\-libtwolame\*(C'\fR.
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.PP
-The following options are supported by the libtwolame wrapper. The
-\&\fBtwolame\fR\-equivalent options follow the FFmpeg ones and are in
-parentheses.
-.IP "\fBb (\fR\fI\-b\fR\fB)\fR" 4
-.IX Item "b (-b)"
-Set bitrate expressed in bits/s for \s-1CBR\s0. \fBtwolame\fR \fBb\fR
-option is expressed in kilobits/s. Default value is 128k.
-.IP "\fBq (\fR\fI\-V\fR\fB)\fR" 4
-.IX Item "q (-V)"
-Set quality for experimental \s-1VBR\s0 support. Maximum value range is
-from \-50 to 50, useful range is from \-10 to 10. The higher the
-value, the better the quality. This option is valid only using the
-\&\fBffmpeg\fR command-line tool. For library interface users,
-use \fBglobal_quality\fR.
-.IP "\fBmode (\fR\fI\-\-mode\fR\fB)\fR" 4
-.IX Item "mode (--mode)"
-Set the mode of the resulting audio. Possible values:
-.RS 4
-.IP "\fBauto\fR" 4
-.IX Item "auto"
-Choose mode automatically based on the input. This is the default.
-.IP "\fBstereo\fR" 4
-.IX Item "stereo"
-Stereo
-.IP "\fBjoint_stereo\fR" 4
-.IX Item "joint_stereo"
-Joint stereo
-.IP "\fBdual_channel\fR" 4
-.IX Item "dual_channel"
-Dual channel
-.IP "\fBmono\fR" 4
-.IX Item "mono"
-Mono
-.RE
-.RS 4
-.RE
-.IP "\fBpsymodel (\fR\fI\-\-psyc\-mode\fR\fB)\fR" 4
-.IX Item "psymodel (--psyc-mode)"
-Set psychoacoustic model to use in encoding. The argument must be
-an integer between \-1 and 4, inclusive. The higher the value, the
-better the quality. The default value is 3.
-.IP "\fBenergy_levels (\fR\fI\-\-energy\fR\fB)\fR" 4
-.IX Item "energy_levels (--energy)"
-Enable energy levels extensions when set to 1. The default value is
-0 (disabled).
-.IP "\fBerror_protection (\fR\fI\-\-protect\fR\fB)\fR" 4
-.IX Item "error_protection (--protect)"
-Enable \s-1CRC\s0 error protection when set to 1. The default value is 0
-(disabled).
-.IP "\fBcopyright (\fR\fI\-\-copyright\fR\fB)\fR" 4
-.IX Item "copyright (--copyright)"
-Set \s-1MPEG\s0 audio copyright flag when set to 1. The default value is 0
-(disabled).
-.IP "\fBoriginal (\fR\fI\-\-original\fR\fB)\fR" 4
-.IX Item "original (--original)"
-Set \s-1MPEG\s0 audio original flag when set to 1. The default value is 0
-(disabled).
-.Sh "libvo-aacenc"
-.IX Subsection "libvo-aacenc"
-VisualOn \s-1AAC\s0 encoder.
-.PP
-Requires the presence of the libvo-aacenc headers and library during
-configuration. You need to explicitly configure the build with
-\&\f(CW\*(C`\-\-enable\-libvo\-aacenc \-\-enable\-version3\*(C'\fR.
-.PP
-This encoder is considered to be worse than the
-native experimental FFmpeg \s-1AAC\s0 encoder, according to
-multiple sources.
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.PP
-The VisualOn \s-1AAC\s0 encoder only support encoding AAC-LC and up to 2
-channels. It is also CBR\-only.
-.IP "\fBb\fR" 4
-.IX Item "b"
-Set bit rate in bits/s.
-.Sh "libvo-amrwbenc"
-.IX Subsection "libvo-amrwbenc"
-VisualOn Adaptive Multi-Rate Wideband encoder.
-.PP
-Requires the presence of the libvo-amrwbenc headers and library during
-configuration. You need to explicitly configure the build with
-\&\f(CW\*(C`\-\-enable\-libvo\-amrwbenc \-\-enable\-version3\*(C'\fR.
-.PP
-This is a mono-only encoder. Officially it only supports 16000Hz sample
-rate, but you can override it by setting \fBstrict\fR to
-\&\fBunofficial\fR or lower.
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.IP "\fBb\fR" 4
-.IX Item "b"
-Set bitrate in bits/s. Only the following bitrates are supported, otherwise
-libavcodec will round to the nearest valid bitrate.
-.RS 4
-.IP "\fB6600\fR" 4
-.IX Item "6600"
-.PD 0
-.IP "\fB8850\fR" 4
-.IX Item "8850"
-.IP "\fB12650\fR" 4
-.IX Item "12650"
-.IP "\fB14250\fR" 4
-.IX Item "14250"
-.IP "\fB15850\fR" 4
-.IX Item "15850"
-.IP "\fB18250\fR" 4
-.IX Item "18250"
-.IP "\fB19850\fR" 4
-.IX Item "19850"
-.IP "\fB23050\fR" 4
-.IX Item "23050"
-.IP "\fB23850\fR" 4
-.IX Item "23850"
-.RE
-.RS 4
-.RE
-.IP "\fBdtx\fR" 4
-.IX Item "dtx"
-.PD
-Allow discontinuous transmission (generate comfort noise) when set to 1. The
-default value is 0 (disabled).
-.Sh "libopus"
-.IX Subsection "libopus"
-libopus Opus Interactive Audio Codec encoder wrapper.
-.PP
-Requires the presence of the libopus headers and library during
-configuration. You need to explicitly configure the build with
-\&\f(CW\*(C`\-\-enable\-libopus\*(C'\fR.
-.PP
-\fIOption Mapping\fR
-.IX Subsection "Option Mapping"
-.PP
-Most libopus options are modeled after the \fBopusenc\fR utility from
-opus\-tools. The following is an option mapping chart describing options
-supported by the libopus wrapper, and their \fBopusenc\fR\-equivalent
-in parentheses.
-.IP "\fBb (\fR\fIbitrate\fR\fB)\fR" 4
-.IX Item "b (bitrate)"
-Set the bit rate in bits/s.  FFmpeg's \fBb\fR option is
-expressed in bits/s, while \fBopusenc\fR's \fBbitrate\fR in
-kilobits/s.
-.IP "\fBvbr (\fR\fIvbr\fR\fB,\fR \fIhard-cbr\fR\fB, and\fR \fIcvbr\fR\fB)\fR" 4
-.IX Item "vbr (vbr, hard-cbr, and cvbr)"
-Set \s-1VBR\s0 mode. The FFmpeg \fBvbr\fR option has the following
-valid arguments, with the their \fBopusenc\fR equivalent options
-in parentheses:
-.RS 4
-.IP "\fBoff (\fR\fIhard-cbr\fR\fB)\fR" 4
-.IX Item "off (hard-cbr)"
-Use constant bit rate encoding.
-.IP "\fBon (\fR\fIvbr\fR\fB)\fR" 4
-.IX Item "on (vbr)"
-Use variable bit rate encoding (the default).
-.IP "\fBconstrained (\fR\fIcvbr\fR\fB)\fR" 4
-.IX Item "constrained (cvbr)"
-Use constrained variable bit rate encoding.
-.RE
-.RS 4
-.RE
-.IP "\fBcompression_level (\fR\fIcomp\fR\fB)\fR" 4
-.IX Item "compression_level (comp)"
-Set encoding algorithm complexity. Valid options are integers in
-the 0\-10 range. 0 gives the fastest encodes but lower quality, while 10
-gives the highest quality but slowest encoding. The default is 10.
-.IP "\fBframe_duration (\fR\fIframesize\fR\fB)\fR" 4
-.IX Item "frame_duration (framesize)"
-Set maximum frame size, or duration of a frame in milliseconds. The
-argument must be exactly the following: 2.5, 5, 10, 20, 40, 60. Smaller
-frame sizes achieve lower latency but less quality at a given bitrate.
-Sizes greater than 20ms are only interesting at fairly low bitrates.
-The default of FFmpeg is 10ms, but is 20ms in \fBopusenc\fR.
-.IP "\fBpacket_loss (\fR\fIexpect-loss\fR\fB)\fR" 4
-.IX Item "packet_loss (expect-loss)"
-Set expected packet loss percentage. The default is 0.
-.IP "\fBapplication (N.A.)\fR" 4
-.IX Item "application (N.A.)"
-Set intended application type. Valid options are listed below:
-.RS 4
-.IP "\fBvoip\fR" 4
-.IX Item "voip"
-Favor improved speech intelligibility.
-.IP "\fBaudio\fR" 4
-.IX Item "audio"
-Favor faithfulness to the input (the default).
-.IP "\fBlowdelay\fR" 4
-.IX Item "lowdelay"
-Restrict to only the lowest delay modes.
-.RE
-.RS 4
-.RE
-.IP "\fBcutoff (N.A.)\fR" 4
-.IX Item "cutoff (N.A.)"
-Set cutoff bandwidth in Hz. The argument must be exactly one of the
-following: 4000, 6000, 8000, 12000, or 20000, corresponding to
-narrowband, mediumband, wideband, super wideband, and fullband
-respectively. The default is 0 (cutoff disabled).
-.Sh "libvorbis"
-.IX Subsection "libvorbis"
-libvorbis encoder wrapper.
-.PP
-Requires the presence of the libvorbisenc headers and library during
-configuration. You need to explicitly configure the build with
-\&\f(CW\*(C`\-\-enable\-libvorbis\*(C'\fR.
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.PP
-The following options are supported by the libvorbis wrapper. The
-\&\fBoggenc\fR\-equivalent of the options are listed in parentheses.
-.PP
-To get a more accurate and extensive documentation of the libvorbis
-options, consult the libvorbisenc's and \fBoggenc\fR's documentations.
-See <\fBhttp://xiph.org/vorbis/\fR>,
-<\fBhttp://wiki.xiph.org/Vorbis\-tools\fR>, and \fIoggenc\fR\|(1).
-.IP "\fBb (\fR\fI\-b\fR\fB)\fR" 4
-.IX Item "b (-b)"
-Set bitrate expressed in bits/s for \s-1ABR\s0. \fBoggenc\fR \fB\-b\fR is
-expressed in kilobits/s.
-.IP "\fBq (\fR\fI\-q\fR\fB)\fR" 4
-.IX Item "q (-q)"
-Set constant quality setting for \s-1VBR\s0. The value should be a float
-number in the range of \-1.0 to 10.0. The higher the value, the better
-the quality. The default value is \fB3.0\fR.
-.Sp
-This option is valid only using the \fBffmpeg\fR command-line tool.
-For library interface users, use \fBglobal_quality\fR.
-.IP "\fBcutoff (\fR\fI\-\-advanced\-encode\-option lowpass_frequency=N\fR\fB)\fR" 4
-.IX Item "cutoff (--advanced-encode-option lowpass_frequency=N)"
-Set cutoff bandwidth in Hz, a value of 0 disables cutoff. \fBoggenc\fR's
-related option is expressed in kHz. The default value is \fB0\fR (cutoff
-disabled).
-.IP "\fBminrate (\fR\fI\-m\fR\fB)\fR" 4
-.IX Item "minrate (-m)"
-Set minimum bitrate expressed in bits/s. \fBoggenc\fR \fB\-m\fR is
-expressed in kilobits/s.
-.IP "\fBmaxrate (\fR\fI\-M\fR\fB)\fR" 4
-.IX Item "maxrate (-M)"
-Set maximum bitrate expressed in bits/s. \fBoggenc\fR \fB\-M\fR is
-expressed in kilobits/s. This only has effect on \s-1ABR\s0 mode.
-.IP "\fBiblock (\fR\fI\-\-advanced\-encode\-option impulse_noisetune=N\fR\fB)\fR" 4
-.IX Item "iblock (--advanced-encode-option impulse_noisetune=N)"
-Set noise floor bias for impulse blocks. The value is a float number from
-\&\-15.0 to 0.0. A negative bias instructs the encoder to pay special attention
-to the crispness of transients in the encoded audio. The tradeoff for better
-transient response is a higher bitrate.
-.Sh "libwavpack"
-.IX Subsection "libwavpack"
-A wrapper providing WavPack encoding through libwavpack.
-.PP
-Only lossless mode using 32\-bit integer samples is supported currently.
-The \fBcompression_level\fR option can be used to control speed vs.
-compression tradeoff, with the values mapped to libwavpack as follows:
-.IP "\fB0\fR" 4
-.IX Item "0"
-Fast mode \- corresponding to the wavpack \fB\-f\fR option.
-.IP "\fB1\fR" 4
-.IX Item "1"
-Normal (default) settings.
-.IP "\fB2\fR" 4
-.IX Item "2"
-High quality \- corresponding to the wavpack \fB\-h\fR option.
-.IP "\fB3\fR" 4
-.IX Item "3"
-Very high quality \- corresponding to the wavpack \fB\-hh\fR option.
-.IP "\fB4\-8\fR" 4
-.IX Item "4-8"
-Same as 3, but with extra processing enabled \- corresponding to the wavpack
-\&\fB\-x\fR option. I.e. 4 is the same as \fB\-x2\fR and 8 is the same as
-\&\fB\-x6\fR.
-.SH "VIDEO ENCODERS"
-.IX Header "VIDEO ENCODERS"
-A description of some of the currently available video encoders
-follows.
-.Sh "libtheora"
-.IX Subsection "libtheora"
-Theora format supported through libtheora.
-.PP
-Requires the presence of the libtheora headers and library during
-configuration. You need to explicitly configure the build with
-\&\f(CW\*(C`\-\-enable\-libtheora\*(C'\fR.
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.PP
-The following global options are mapped to internal libtheora options
-which affect the quality and the bitrate of the encoded stream.
-.IP "\fBb\fR" 4
-.IX Item "b"
-Set the video bitrate, only works if the \f(CW\*(C`qscale\*(C'\fR flag in
-\&\fBflags\fR is not enabled.
-.IP "\fBflags\fR" 4
-.IX Item "flags"
-Used to enable constant quality mode encoding through the
-\&\fBqscale\fR flag, and to enable the \f(CW\*(C`pass1\*(C'\fR and \f(CW\*(C`pass2\*(C'\fR
-modes.
-.IP "\fBg\fR" 4
-.IX Item "g"
-Set the \s-1GOP\s0 size.
-.IP "\fBglobal_quality\fR" 4
-.IX Item "global_quality"
-Set the global quality in lambda units, only works if the
-\&\f(CW\*(C`qscale\*(C'\fR flag in \fBflags\fR is enabled. The value is clipped
-in the [0 \- 10*\f(CW\*(C`FF_QP2LAMBDA\*(C'\fR] range, and then multiplied for 6.3
-to get a value in the native libtheora range [0\-63]. A higher value
-corresponds to a higher quality.
-.Sp
-For example, to set maximum constant quality encoding with
-\&\fBffmpeg\fR:
-.Sp
-.Vb 1
-\&        ffmpeg -i INPUT -flags:v qscale -global_quality:v "10*QP2LAMBDA" -codec:v libtheora OUTPUT.ogg
-.Ve
-.Sh "libvpx"
-.IX Subsection "libvpx"
-\&\s-1VP8\s0 format supported through libvpx.
-.PP
-Requires the presence of the libvpx headers and library during configuration.
-You need to explicitly configure the build with \f(CW\*(C`\-\-enable\-libvpx\*(C'\fR.
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.PP
-Mapping from FFmpeg to libvpx options with conversion notes in parentheses.
-.IP "\fBthreads\fR" 4
-.IX Item "threads"
-g_threads
-.IP "\fBprofile\fR" 4
-.IX Item "profile"
-g_profile
-.IP "\fBvb\fR" 4
-.IX Item "vb"
-rc_target_bitrate
-.IP "\fBg\fR" 4
-.IX Item "g"
-kf_max_dist
-.IP "\fBkeyint_min\fR" 4
-.IX Item "keyint_min"
-kf_min_dist
-.IP "\fBqmin\fR" 4
-.IX Item "qmin"
-rc_min_quantizer
-.IP "\fBqmax\fR" 4
-.IX Item "qmax"
-rc_max_quantizer
-.IP "\fBbufsize, vb\fR" 4
-.IX Item "bufsize, vb"
-rc_buf_sz
-\&\f(CW\*(C`(bufsize * 1000 / vb)\*(C'\fR
-.Sp
-rc_buf_optimal_sz
-\&\f(CW\*(C`(bufsize * 1000 / vb * 5 / 6)\*(C'\fR
-.IP "\fBrc_init_occupancy, vb\fR" 4
-.IX Item "rc_init_occupancy, vb"
-rc_buf_initial_sz
-\&\f(CW\*(C`(rc_init_occupancy * 1000 / vb)\*(C'\fR
-.IP "\fBrc_buffer_aggressivity\fR" 4
-.IX Item "rc_buffer_aggressivity"
-rc_undershoot_pct
-.IP "\fBskip_threshold\fR" 4
-.IX Item "skip_threshold"
-rc_dropframe_thresh
-.IP "\fBqcomp\fR" 4
-.IX Item "qcomp"
-rc_2pass_vbr_bias_pct
-.IP "\fBmaxrate, vb\fR" 4
-.IX Item "maxrate, vb"
-rc_2pass_vbr_maxsection_pct
-\&\f(CW\*(C`(maxrate * 100 / vb)\*(C'\fR
-.IP "\fBminrate, vb\fR" 4
-.IX Item "minrate, vb"
-rc_2pass_vbr_minsection_pct
-\&\f(CW\*(C`(minrate * 100 / vb)\*(C'\fR
-.IP "\fBminrate, maxrate, vb\fR" 4
-.IX Item "minrate, maxrate, vb"
-\&\f(CW\*(C`VPX_CBR\*(C'\fR
-\&\f(CW\*(C`(minrate == maxrate == vb)\*(C'\fR
-.IP "\fBcrf\fR" 4
-.IX Item "crf"
-\&\f(CW\*(C`VPX_CQ\*(C'\fR, \f(CW\*(C`VP8E_SET_CQ_LEVEL\*(C'\fR
-.IP "\fBquality\fR" 4
-.IX Item "quality"
-.RS 4
-.PD 0
-.IP "\fIbest\fR" 4
-.IX Item "best"
-.PD
-\&\f(CW\*(C`VPX_DL_BEST_QUALITY\*(C'\fR
-.IP "\fIgood\fR" 4
-.IX Item "good"
-\&\f(CW\*(C`VPX_DL_GOOD_QUALITY\*(C'\fR
-.IP "\fIrealtime\fR" 4
-.IX Item "realtime"
-\&\f(CW\*(C`VPX_DL_REALTIME\*(C'\fR
-.RE
-.RS 4
-.RE
-.IP "\fBspeed\fR" 4
-.IX Item "speed"
-\&\f(CW\*(C`VP8E_SET_CPUUSED\*(C'\fR
-.IP "\fBnr\fR" 4
-.IX Item "nr"
-\&\f(CW\*(C`VP8E_SET_NOISE_SENSITIVITY\*(C'\fR
-.IP "\fBmb_threshold\fR" 4
-.IX Item "mb_threshold"
-\&\f(CW\*(C`VP8E_SET_STATIC_THRESHOLD\*(C'\fR
-.IP "\fBslices\fR" 4
-.IX Item "slices"
-\&\f(CW\*(C`VP8E_SET_TOKEN_PARTITIONS\*(C'\fR
-.IP "\fBmax-intra-rate\fR" 4
-.IX Item "max-intra-rate"
-\&\f(CW\*(C`VP8E_SET_MAX_INTRA_BITRATE_PCT\*(C'\fR
-.IP "\fBforce_key_frames\fR" 4
-.IX Item "force_key_frames"
-\&\f(CW\*(C`VPX_EFLAG_FORCE_KF\*(C'\fR
-.IP "\fBAlternate reference frame related\fR" 4
-.IX Item "Alternate reference frame related"
-.RS 4
-.PD 0
-.IP "\fBvp8flags altref\fR" 4
-.IX Item "vp8flags altref"
-.PD
-\&\f(CW\*(C`VP8E_SET_ENABLEAUTOALTREF\*(C'\fR
-.IP "\fIarnr_max_frames\fR" 4
-.IX Item "arnr_max_frames"
-\&\f(CW\*(C`VP8E_SET_ARNR_MAXFRAMES\*(C'\fR
-.IP "\fIarnr_type\fR" 4
-.IX Item "arnr_type"
-\&\f(CW\*(C`VP8E_SET_ARNR_TYPE\*(C'\fR
-.IP "\fIarnr_strength\fR" 4
-.IX Item "arnr_strength"
-\&\f(CW\*(C`VP8E_SET_ARNR_STRENGTH\*(C'\fR
-.IP "\fIrc_lookahead\fR" 4
-.IX Item "rc_lookahead"
-g_lag_in_frames
-.RE
-.RS 4
-.RE
-.IP "\fBvp8flags error_resilient\fR" 4
-.IX Item "vp8flags error_resilient"
-g_error_resilient
-.PP
-For more information about libvpx see:
-<\fBhttp://www.webmproject.org/\fR>
-.Sh "libx264"
-.IX Subsection "libx264"
-x264 H.264/MPEG\-4 \s-1AVC\s0 encoder wrapper.
-.PP
-This encoder requires the presence of the libx264 headers and library
-during configuration. You need to explicitly configure the build with
-\&\f(CW\*(C`\-\-enable\-libx264\*(C'\fR.
-.PP
-libx264 supports an impressive number of features, including 8x8 and
-4x4 adaptive spatial transform, adaptive B\-frame placement, \s-1CAVLC/CABAC\s0
-entropy coding, interlacing (\s-1MBAFF\s0), lossless mode, psy optimizations
-for detail retention (adaptive quantization, psy\-RD, psy\-trellis).
-.PP
-Many libx264 encoder options are mapped to FFmpeg global codec
-options, while unique encoder options are provided through private
-options. Additionally the \fBx264opts\fR and \fBx264\-params\fR
-private options allows to pass a list of key=value tuples as accepted
-by the libx264 \f(CW\*(C`x264_param_parse\*(C'\fR function.
-.PP
-The x264 project website is at
-<\fBhttp://www.videolan.org/developers/x264.html\fR>.
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.PP
-The following options are supported by the libx264 wrapper. The
-\&\fBx264\fR\-equivalent options or values are listed in parentheses
-for easy migration.
-.PP
-To reduce the duplication of documentation, only the private options
-and some others requiring special attention are documented here. For
-the documentation of the undocumented generic options, see
-the Codec Options chapter.
-.PP
-To get a more accurate and extensive documentation of the libx264
-options, invoke the command \fBx264 \-\-full\-help\fR or consult
-the libx264 documentation.
-.IP "\fBb (\fR\fIbitrate\fR\fB)\fR" 4
-.IX Item "b (bitrate)"
-Set bitrate in bits/s. Note that FFmpeg's \fBb\fR option is
-expressed in bits/s, while \fBx264\fR's \fBbitrate\fR is in
-kilobits/s.
-.IP "\fBbf (\fR\fIbframes\fR\fB)\fR" 4
-.IX Item "bf (bframes)"
-.PD 0
-.IP "\fBg (\fR\fIkeyint\fR\fB)\fR" 4
-.IX Item "g (keyint)"
-.IP "\fBqmax (\fR\fIqpmax\fR\fB)\fR" 4
-.IX Item "qmax (qpmax)"
-.IP "\fBqmin (\fR\fIqpmin\fR\fB)\fR" 4
-.IX Item "qmin (qpmin)"
-.IP "\fBqdiff (\fR\fIqpstep\fR\fB)\fR" 4
-.IX Item "qdiff (qpstep)"
-.IP "\fBqblur (\fR\fIqblur\fR\fB)\fR" 4
-.IX Item "qblur (qblur)"
-.IP "\fBqcomp (\fR\fIqcomp\fR\fB)\fR" 4
-.IX Item "qcomp (qcomp)"
-.IP "\fBrefs (\fR\fIref\fR\fB)\fR" 4
-.IX Item "refs (ref)"
-.IP "\fBsc_threshold (\fR\fIscenecut\fR\fB)\fR" 4
-.IX Item "sc_threshold (scenecut)"
-.IP "\fBtrellis (\fR\fItrellis\fR\fB)\fR" 4
-.IX Item "trellis (trellis)"
-.IP "\fBnr  (\fR\fInr\fR\fB)\fR" 4
-.IX Item "nr  (nr)"
-.IP "\fBme_range (\fR\fImerange\fR\fB)\fR" 4
-.IX Item "me_range (merange)"
-.IP "\fBme_method (\fR\fIme\fR\fB)\fR" 4
-.IX Item "me_method (me)"
-.PD
-Set motion estimation method. Possible values in the decreasing order
-of speed:
-.RS 4
-.IP "\fBdia (\fR\fIdia\fR\fB)\fR" 4
-.IX Item "dia (dia)"
-.PD 0
-.IP "\fBepzs (\fR\fIdia\fR\fB)\fR" 4
-.IX Item "epzs (dia)"
-.PD
-Diamond search with radius 1 (fastest). \fBepzs\fR is an alias for
-\&\fBdia\fR.
-.IP "\fBhex (\fR\fIhex\fR\fB)\fR" 4
-.IX Item "hex (hex)"
-Hexagonal search with radius 2.
-.IP "\fBumh (\fR\fIumh\fR\fB)\fR" 4
-.IX Item "umh (umh)"
-Uneven multi-hexagon search.
-.IP "\fBesa (\fR\fIesa\fR\fB)\fR" 4
-.IX Item "esa (esa)"
-Exhaustive search.
-.IP "\fBtesa (\fR\fItesa\fR\fB)\fR" 4
-.IX Item "tesa (tesa)"
-Hadamard exhaustive search (slowest).
-.RE
-.RS 4
-.RE
-.IP "\fBsubq (\fR\fIsubme\fR\fB)\fR" 4
-.IX Item "subq (subme)"
-.PD 0
-.IP "\fBb_strategy (\fR\fIb\-adapt\fR\fB)\fR" 4
-.IX Item "b_strategy (b-adapt)"
-.IP "\fBkeyint_min (\fR\fImin-keyint\fR\fB)\fR" 4
-.IX Item "keyint_min (min-keyint)"
-.IP "\fBcoder\fR" 4
-.IX Item "coder"
-.PD
-Set entropy encoder. Possible values:
-.RS 4
-.IP "\fBac\fR" 4
-.IX Item "ac"
-Enable \s-1CABAC\s0.
-.IP "\fBvlc\fR" 4
-.IX Item "vlc"
-Enable \s-1CAVLC\s0 and disable \s-1CABAC\s0. It generates the same effect as
-\&\fBx264\fR's \fB\-\-no\-cabac\fR option.
-.RE
-.RS 4
-.RE
-.IP "\fBcmp\fR" 4
-.IX Item "cmp"
-Set full pixel motion estimation comparation algorithm. Possible values:
-.RS 4
-.IP "\fBchroma\fR" 4
-.IX Item "chroma"
-Enable chroma in motion estimation.
-.IP "\fBsad\fR" 4
-.IX Item "sad"
-Ignore chroma in motion estimation. It generates the same effect as
-\&\fBx264\fR's \fB\-\-no\-chroma\-me\fR option.
-.RE
-.RS 4
-.RE
-.IP "\fBthreads (\fR\fIthreads\fR\fB)\fR" 4
-.IX Item "threads (threads)"
-.PD 0
-.IP "\fBthread_type\fR" 4
-.IX Item "thread_type"
-.PD
-Set multithreading technique. Possible values:
-.RS 4
-.IP "\fBslice\fR" 4
-.IX Item "slice"
-Slice-based multithreading. It generates the same effect as
-\&\fBx264\fR's \fB\-\-sliced\-threads\fR option.
-.IP "\fBframe\fR" 4
-.IX Item "frame"
-Frame-based multithreading.
-.RE
-.RS 4
-.RE
-.IP "\fBflags\fR" 4
-.IX Item "flags"
-Set encoding flags. It can be used to disable closed \s-1GOP\s0 and enable
-open \s-1GOP\s0 by setting it to \f(CW\*(C`\-cgop\*(C'\fR. The result is similar to
-the behavior of \fBx264\fR's \fB\-\-open\-gop\fR option.
-.IP "\fBrc_init_occupancy (\fR\fIvbv-init\fR\fB)\fR" 4
-.IX Item "rc_init_occupancy (vbv-init)"
-.PD 0
-.IP "\fBpreset (\fR\fIpreset\fR\fB)\fR" 4
-.IX Item "preset (preset)"
-.PD
-Set the encoding preset.
-.IP "\fBtune (\fR\fItune\fR\fB)\fR" 4
-.IX Item "tune (tune)"
-Set tuning of the encoding params.
-.IP "\fBprofile (\fR\fIprofile\fR\fB)\fR" 4
-.IX Item "profile (profile)"
-Set profile restrictions.
-.IP "\fBfastfirstpass\fR" 4
-.IX Item "fastfirstpass"
-Enable fast settings when encoding first pass, when set to 1. When set
-to 0, it has the same effect of \fBx264\fR's
-\&\fB\-\-slow\-firstpass\fR option.
-.IP "\fBcrf (\fR\fIcrf\fR\fB)\fR" 4
-.IX Item "crf (crf)"
-Set the quality for constant quality mode.
-.IP "\fBcrf_max (\fR\fIcrf-max\fR\fB)\fR" 4
-.IX Item "crf_max (crf-max)"
-In \s-1CRF\s0 mode, prevents \s-1VBV\s0 from lowering quality beyond this point.
-.IP "\fBqp (\fR\fIqp\fR\fB)\fR" 4
-.IX Item "qp (qp)"
-Set constant quantization rate control method parameter.
-.IP "\fBaq-mode (\fR\fIaq-mode\fR\fB)\fR" 4
-.IX Item "aq-mode (aq-mode)"
-Set \s-1AQ\s0 method. Possible values:
-.RS 4
-.IP "\fBnone (\fR\fI0\fR\fB)\fR" 4
-.IX Item "none (0)"
-Disabled.
-.IP "\fBvariance (\fR\fI1\fR\fB)\fR" 4
-.IX Item "variance (1)"
-Variance \s-1AQ\s0 (complexity mask).
-.IP "\fBautovariance (\fR\fI2\fR\fB)\fR" 4
-.IX Item "autovariance (2)"
-Auto-variance \s-1AQ\s0 (experimental).
-.RE
-.RS 4
-.RE
-.IP "\fBaq-strength (\fR\fIaq-strength\fR\fB)\fR" 4
-.IX Item "aq-strength (aq-strength)"
-Set \s-1AQ\s0 strength, reduce blocking and blurring in flat and textured areas.
-.IP "\fBpsy\fR" 4
-.IX Item "psy"
-Use psychovisual optimizations when set to 1. When set to 0, it has the
-same effect as \fBx264\fR's \fB\-\-no\-psy\fR option.
-.IP "\fBpsy-rd  (\fR\fIpsy-rd\fR\fB)\fR" 4
-.IX Item "psy-rd  (psy-rd)"
-Set strength of psychovisual optimization, in
-\&\fIpsy-rd\fR:\fIpsy-trellis\fR format.
-.IP "\fBrc-lookahead (\fR\fIrc-lookahead\fR\fB)\fR" 4
-.IX Item "rc-lookahead (rc-lookahead)"
-Set number of frames to look ahead for frametype and ratecontrol.
-.IP "\fBweightb\fR" 4
-.IX Item "weightb"
-Enable weighted prediction for B\-frames when set to 1. When set to 0,
-it has the same effect as \fBx264\fR's \fB\-\-no\-weightb\fR option.
-.IP "\fBweightp (\fR\fIweightp\fR\fB)\fR" 4
-.IX Item "weightp (weightp)"
-Set weighted prediction method for P\-frames. Possible values:
-.RS 4
-.IP "\fBnone (\fR\fI0\fR\fB)\fR" 4
-.IX Item "none (0)"
-Disabled
-.IP "\fBsimple (\fR\fI1\fR\fB)\fR" 4
-.IX Item "simple (1)"
-Enable only weighted refs
-.IP "\fBsmart (\fR\fI2\fR\fB)\fR" 4
-.IX Item "smart (2)"
-Enable both weighted refs and duplicates
-.RE
-.RS 4
-.RE
-.IP "\fBssim (\fR\fIssim\fR\fB)\fR" 4
-.IX Item "ssim (ssim)"
-Enable calculation and printing \s-1SSIM\s0 stats after the encoding.
-.IP "\fBintra-refresh (\fR\fIintra-refresh\fR\fB)\fR" 4
-.IX Item "intra-refresh (intra-refresh)"
-Enable the use of Periodic Intra Refresh instead of \s-1IDR\s0 frames when set
-to 1.
-.IP "\fBbluray-compat (\fR\fIbluray-compat\fR\fB)\fR" 4
-.IX Item "bluray-compat (bluray-compat)"
-Configure the encoder to be compatible with the bluray standard.
-It is a shorthand for setting \*(L"bluray\-compat=1 force\-cfr=1\*(R".
-.IP "\fBb\-bias (\fR\fIb\-bias\fR\fB)\fR" 4
-.IX Item "b-bias (b-bias)"
-Set the influence on how often B\-frames are used.
-.IP "\fBb\-pyramid (\fR\fIb\-pyramid\fR\fB)\fR" 4
-.IX Item "b-pyramid (b-pyramid)"
-Set method for keeping of some B\-frames as references. Possible values:
-.RS 4
-.IP "\fBnone (\fR\fInone\fR\fB)\fR" 4
-.IX Item "none (none)"
-Disabled.
-.IP "\fBstrict (\fR\fIstrict\fR\fB)\fR" 4
-.IX Item "strict (strict)"
-Strictly hierarchical pyramid.
-.IP "\fBnormal (\fR\fInormal\fR\fB)\fR" 4
-.IX Item "normal (normal)"
-Non-strict (not Blu-ray compatible).
-.RE
-.RS 4
-.RE
-.IP "\fBmixed-refs\fR" 4
-.IX Item "mixed-refs"
-Enable the use of one reference per partition, as opposed to one
-reference per macroblock when set to 1. When set to 0, it has the
-same effect as \fBx264\fR's \fB\-\-no\-mixed\-refs\fR option.
-.IP "\fB8x8dct\fR" 4
-.IX Item "8x8dct"
-Enable adaptive spatial transform (high profile 8x8 transform)
-when set to 1. When set to 0, it has the same effect as
-\&\fBx264\fR's \fB\-\-no\-8x8dct\fR option.
-.IP "\fBfast-pskip\fR" 4
-.IX Item "fast-pskip"
-Enable early \s-1SKIP\s0 detection on P\-frames when set to 1. When set
-to 0, it has the same effect as \fBx264\fR's
-\&\fB\-\-no\-fast\-pskip\fR option.
-.IP "\fBaud (\fR\fIaud\fR\fB)\fR" 4
-.IX Item "aud (aud)"
-Enable use of access unit delimiters when set to 1.
-.IP "\fBmbtree\fR" 4
-.IX Item "mbtree"
-Enable use macroblock tree ratecontrol when set to 1. When set
-to 0, it has the same effect as \fBx264\fR's
-\&\fB\-\-no\-mbtree\fR option.
-.IP "\fBdeblock (\fR\fIdeblock\fR\fB)\fR" 4
-.IX Item "deblock (deblock)"
-Set loop filter parameters, in \fIalpha\fR:\fIbeta\fR form.
-.IP "\fBcplxblur (\fR\fIcplxblur\fR\fB)\fR" 4
-.IX Item "cplxblur (cplxblur)"
-Set fluctuations reduction in \s-1QP\s0 (before curve compression).
-.IP "\fBpartitions (\fR\fIpartitions\fR\fB)\fR" 4
-.IX Item "partitions (partitions)"
-Set partitions to consider as a comma-separated list of. Possible
-values in the list:
-.RS 4
-.IP "\fBp8x8\fR" 4
-.IX Item "p8x8"
-8x8 P\-frame partition.
-.IP "\fBp4x4\fR" 4
-.IX Item "p4x4"
-4x4 P\-frame partition.
-.IP "\fBb8x8\fR" 4
-.IX Item "b8x8"
-4x4 B\-frame partition.
-.IP "\fBi8x8\fR" 4
-.IX Item "i8x8"
-8x8 I\-frame partition.
-.IP "\fBi4x4\fR" 4
-.IX Item "i4x4"
-4x4 I\-frame partition.
-(Enabling \fBp4x4\fR requires \fBp8x8\fR to be enabled. Enabling
-\&\fBi8x8\fR requires adaptive spatial transform (\fB8x8dct\fR
-option) to be enabled.)
-.IP "\fBnone (\fR\fInone\fR\fB)\fR" 4
-.IX Item "none (none)"
-Do not consider any partitions.
-.IP "\fBall (\fR\fIall\fR\fB)\fR" 4
-.IX Item "all (all)"
-Consider every partition.
-.RE
-.RS 4
-.RE
-.IP "\fBdirect-pred (\fR\fIdirect\fR\fB)\fR" 4
-.IX Item "direct-pred (direct)"
-Set direct \s-1MV\s0 prediction mode. Possible values:
-.RS 4
-.IP "\fBnone (\fR\fInone\fR\fB)\fR" 4
-.IX Item "none (none)"
-Disable \s-1MV\s0 prediction.
-.IP "\fBspatial (\fR\fIspatial\fR\fB)\fR" 4
-.IX Item "spatial (spatial)"
-Enable spatial predicting.
-.IP "\fBtemporal (\fR\fItemporal\fR\fB)\fR" 4
-.IX Item "temporal (temporal)"
-Enable temporal predicting.
-.IP "\fBauto (\fR\fIauto\fR\fB)\fR" 4
-.IX Item "auto (auto)"
-Automatically decided.
-.RE
-.RS 4
-.RE
-.IP "\fBslice-max-size (\fR\fIslice-max-size\fR\fB)\fR" 4
-.IX Item "slice-max-size (slice-max-size)"
-Set the limit of the size of each slice in bytes. If not specified
-but \s-1RTP\s0 payload size (\fBps\fR) is specified, that is used.
-.IP "\fBstats (\fR\fIstats\fR\fB)\fR" 4
-.IX Item "stats (stats)"
-Set the file name for multi-pass stats.
-.IP "\fBnal-hrd (\fR\fInal-hrd\fR\fB)\fR" 4
-.IX Item "nal-hrd (nal-hrd)"
-Set signal \s-1HRD\s0 information (requires \fBvbv-bufsize\fR to be set).
-Possible values:
-.RS 4
-.IP "\fBnone (\fR\fInone\fR\fB)\fR" 4
-.IX Item "none (none)"
-Disable \s-1HRD\s0 information signaling.
-.IP "\fBvbr (\fR\fIvbr\fR\fB)\fR" 4
-.IX Item "vbr (vbr)"
-Variable bit rate.
-.IP "\fBcbr (\fR\fIcbr\fR\fB)\fR" 4
-.IX Item "cbr (cbr)"
-Constant bit rate (not allowed in \s-1MP4\s0 container).
-.RE
-.RS 4
-.RE
-.IP "\fBx264opts (N.A.)\fR" 4
-.IX Item "x264opts (N.A.)"
-Set any x264 option, see \fBx264 \-\-fullhelp\fR for a list.
-.Sp
-Argument is a list of \fIkey\fR=\fIvalue\fR couples separated by
-\&\*(L":\*(R". In \fIfilter\fR and \fIpsy-rd\fR options that use \*(L":\*(R" as a separator
-themselves, use \*(L",\*(R" instead. They accept it as well since long ago but this
-is kept undocumented for some reason.
-.Sp
-For example to specify libx264 encoding options with \fBffmpeg\fR:
-.Sp
-.Vb 1
-\&        ffmpeg -i foo.mpg -vcodec libx264 -x264opts keyint=123:min-keyint=20 -an out.mkv
-.Ve
-.IP "\fBx264\-params (N.A.)\fR" 4
-.IX Item "x264-params (N.A.)"
-Override the x264 configuration using a :\-separated list of key=value
-parameters.
-.Sp
-This option is functionally the same as the \fBx264opts\fR, but is
-duplicated for compability with the Libav fork.
-.Sp
-For example to specify libx264 encoding options with \fBffmpeg\fR:
-.Sp
-.Vb 3
-\&        ffmpeg -i INPUT -c:v libx264 -x264-params level=30:bframes=0:weightp=0:\e
-\&        cabac=0:ref=1:vbv-maxrate=768:vbv-bufsize=2000:analyse=all:me=umh:\e
-\&        no-fast-pskip=1:subq=6:8x8dct=0:trellis=0 OUTPUT
-.Ve
-.PP
-Encoding ffpresets for common usages are provided so they can be used with the
-general presets system (e.g. passing the \fBpre\fR option).
-.Sh "libxvid"
-.IX Subsection "libxvid"
-Xvid \s-1MPEG\-4\s0 Part 2 encoder wrapper.
-.PP
-This encoder requires the presence of the libxvidcore headers and library
-during configuration. You need to explicitly configure the build with
-\&\f(CW\*(C`\-\-enable\-libxvid \-\-enable\-gpl\*(C'\fR.
-.PP
-The native \f(CW\*(C`mpeg4\*(C'\fR encoder supports the \s-1MPEG\-4\s0 Part 2 format, so
-users can encode to this format without this library.
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.PP
-The following options are supported by the libxvid wrapper. Some of
-the following options are listed but are not documented, and
-correspond to shared codec options. See the Codec
-Options chapter for their documentation. The other shared options
-which are not listed have no effect for the libxvid encoder.
-.IP "\fBb\fR" 4
-.IX Item "b"
-.PD 0
-.IP "\fBg\fR" 4
-.IX Item "g"
-.IP "\fBqmin\fR" 4
-.IX Item "qmin"
-.IP "\fBqmax\fR" 4
-.IX Item "qmax"
-.IP "\fBmpeg_quant\fR" 4
-.IX Item "mpeg_quant"
-.IP "\fBthreads\fR" 4
-.IX Item "threads"
-.IP "\fBbf\fR" 4
-.IX Item "bf"
-.IP "\fBb_qfactor\fR" 4
-.IX Item "b_qfactor"
-.IP "\fBb_qoffset\fR" 4
-.IX Item "b_qoffset"
-.IP "\fBflags\fR" 4
-.IX Item "flags"
-.PD
-Set specific encoding flags. Possible values:
-.RS 4
-.IP "\fBmv4\fR" 4
-.IX Item "mv4"
-Use four motion vector by macroblock.
-.IP "\fBaic\fR" 4
-.IX Item "aic"
-Enable high quality \s-1AC\s0 prediction.
-.IP "\fBgray\fR" 4
-.IX Item "gray"
-Only encode grayscale.
-.IP "\fBgmc\fR" 4
-.IX Item "gmc"
-Enable the use of global motion compensation (\s-1GMC\s0).
-.IP "\fBqpel\fR" 4
-.IX Item "qpel"
-Enable quarter-pixel motion compensation.
-.IP "\fBcgop\fR" 4
-.IX Item "cgop"
-Enable closed \s-1GOP\s0.
-.IP "\fBglobal_header\fR" 4
-.IX Item "global_header"
-Place global headers in extradata instead of every keyframe.
-.RE
-.RS 4
-.RE
-.IP "\fBtrellis\fR" 4
-.IX Item "trellis"
-.PD 0
-.IP "\fBme_method\fR" 4
-.IX Item "me_method"
-.PD
-Set motion estimation method. Possible values in decreasing order of
-speed and increasing order of quality:
-.RS 4
-.IP "\fBzero\fR" 4
-.IX Item "zero"
-Use no motion estimation (default).
-.IP "\fBphods\fR" 4
-.IX Item "phods"
-.PD 0
-.IP "\fBx1\fR" 4
-.IX Item "x1"
-.IP "\fBlog\fR" 4
-.IX Item "log"
-.PD
-Enable advanced diamond zonal search for 16x16 blocks and half-pixel
-refinement for 16x16 blocks. \fBx1\fR and \fBlog\fR are aliases for
-\&\fBphods\fR.
-.IP "\fBepzs\fR" 4
-.IX Item "epzs"
-Enable all of the things described above, plus advanced diamond zonal
-search for 8x8 blocks, half-pixel refinement for 8x8 blocks, and motion
-estimation on chroma planes.
-.IP "\fBfull\fR" 4
-.IX Item "full"
-Enable all of the things described above, plus extended 16x16 and 8x8
-blocks search.
-.RE
-.RS 4
-.RE
-.IP "\fBmbd\fR" 4
-.IX Item "mbd"
-Set macroblock decision algorithm. Possible values in the increasing
-order of quality:
-.RS 4
-.IP "\fBsimple\fR" 4
-.IX Item "simple"
-Use macroblock comparing function algorithm (default).
-.IP "\fBbits\fR" 4
-.IX Item "bits"
-Enable rate distortion-based half pixel and quarter pixel refinement for
-16x16 blocks.
-.IP "\fBrd\fR" 4
-.IX Item "rd"
-Enable all of the things described above, plus rate distortion-based
-half pixel and quarter pixel refinement for 8x8 blocks, and rate
-distortion-based search using square pattern.
-.RE
-.RS 4
-.RE
-.IP "\fBlumi_aq\fR" 4
-.IX Item "lumi_aq"
-Enable lumi masking adaptive quantization when set to 1. Default is 0
-(disabled).
-.IP "\fBvariance_aq\fR" 4
-.IX Item "variance_aq"
-Enable variance adaptive quantization when set to 1. Default is 0
-(disabled).
-.Sp
-When combined with \fBlumi_aq\fR, the resulting quality will not
-be better than any of the two specified individually. In other
-words, the resulting quality will be the worse one of the two
-effects.
-.IP "\fBssim\fR" 4
-.IX Item "ssim"
-Set structural similarity (\s-1SSIM\s0) displaying method. Possible values:
-.RS 4
-.IP "\fBoff\fR" 4
-.IX Item "off"
-Disable displaying of \s-1SSIM\s0 information.
-.IP "\fBavg\fR" 4
-.IX Item "avg"
-Output average \s-1SSIM\s0 at the end of encoding to stdout. The format of
-showing the average \s-1SSIM\s0 is:
-.Sp
-.Vb 1
-\&        Average SSIM: %f
-.Ve
-.Sp
-For users who are not familiar with C, \f(CW%f\fR means a float number, or
-a decimal (e.g. 0.939232).
-.IP "\fBframe\fR" 4
-.IX Item "frame"
-Output both per-frame \s-1SSIM\s0 data during encoding and average \s-1SSIM\s0 at
-the end of encoding to stdout. The format of per-frame information
-is:
-.Sp
-.Vb 1
-\&               SSIM: avg: %1.3f min: %1.3f max: %1.3f
-.Ve
-.Sp
-For users who are not familiar with C, \f(CW%1\fR.3f means a float number
-rounded to 3 digits after the dot (e.g. 0.932).
-.RE
-.RS 4
-.RE
-.IP "\fBssim_acc\fR" 4
-.IX Item "ssim_acc"
-Set \s-1SSIM\s0 accuracy. Valid options are integers within the range of
-0\-4, while 0 gives the most accurate result and 4 computes the
-fastest.
-.Sh "png"
-.IX Subsection "png"
-\&\s-1PNG\s0 image encoder.
-.PP
-\fIPrivate options\fR
-.IX Subsection "Private options"
-.IP "\fBdpi\fR \fIinteger\fR" 4
-.IX Item "dpi integer"
-Set physical density of pixels, in dots per inch, unset by default
-.IP "\fBdpm\fR \fIinteger\fR" 4
-.IX Item "dpm integer"
-Set physical density of pixels, in dots per meter, unset by default
-.Sh "ProRes"
-.IX Subsection "ProRes"
-Apple ProRes encoder.
-.PP
-FFmpeg contains 2 ProRes encoders, the prores-aw and prores-ks encoder.
-The used encoder can be choosen with the \f(CW\*(C`\-vcodec\*(C'\fR option.
-.PP
-\fIPrivate Options for prores-ks\fR
-.IX Subsection "Private Options for prores-ks"
-.IP "\fBprofile\fR \fIinteger\fR" 4
-.IX Item "profile integer"
-Select the ProRes profile to encode
-.RS 4
-.IP "\fBproxy\fR" 4
-.IX Item "proxy"
-.PD 0
-.IP "\fBlt\fR" 4
-.IX Item "lt"
-.IP "\fBstandard\fR" 4
-.IX Item "standard"
-.IP "\fBhq\fR" 4
-.IX Item "hq"
-.IP "\fB4444\fR" 4
-.IX Item "4444"
-.RE
-.RS 4
-.RE
-.IP "\fBquant_mat\fR \fIinteger\fR" 4
-.IX Item "quant_mat integer"
-.PD
-Select quantization matrix.
-.RS 4
-.IP "\fBauto\fR" 4
-.IX Item "auto"
-.PD 0
-.IP "\fBdefault\fR" 4
-.IX Item "default"
-.IP "\fBproxy\fR" 4
-.IX Item "proxy"
-.IP "\fBlt\fR" 4
-.IX Item "lt"
-.IP "\fBstandard\fR" 4
-.IX Item "standard"
-.IP "\fBhq\fR" 4
-.IX Item "hq"
-.RE
-.RS 4
-.PD
-.Sp
-If set to \fIauto\fR, the matrix matching the profile will be picked.
-If not set, the matrix providing the highest quality, \fIdefault\fR, will be
-picked.
-.RE
-.IP "\fBbits_per_mb\fR \fIinteger\fR" 4
-.IX Item "bits_per_mb integer"
-How many bits to allot for coding one macroblock. Different profiles use
-between 200 and 2400 bits per macroblock, the maximum is 8000.
-.IP "\fBmbs_per_slice\fR \fIinteger\fR" 4
-.IX Item "mbs_per_slice integer"
-Number of macroblocks in each slice (1\-8); the default value (8)
-should be good in almost all situations.
-.IP "\fBvendor\fR \fIstring\fR" 4
-.IX Item "vendor string"
-Override the 4\-byte vendor \s-1ID\s0.
-A custom vendor \s-1ID\s0 like \fIapl0\fR would claim the stream was produced by
-the Apple encoder.
-.IP "\fBalpha_bits\fR \fIinteger\fR" 4
-.IX Item "alpha_bits integer"
-Specify number of bits for alpha component.
-Possible values are \fI0\fR, \fI8\fR and \fI16\fR.
-Use \fI0\fR to disable alpha plane coding.
-.PP
-\fISpeed considerations\fR
-.IX Subsection "Speed considerations"
-.PP
-In the default mode of operation the encoder has to honor frame constraints
-(i.e. not produc frames with size bigger than requested) while still making
-output picture as good as possible.
-A frame containing a lot of small details is harder to compress and the encoder
-would spend more time searching for appropriate quantizers for each slice.
-.PP
-Setting a higher \fBbits_per_mb\fR limit will improve the speed.
-.PP
-For the fastest encoding speed set the \fBqscale\fR parameter (4 is the
-recommended value) and do not set a size constraint.
-.SH "SEE ALSO"
-.IX Header "SEE ALSO"
-\&\fIffmpeg\fR\|(1), \fIffplay\fR\|(1), \fIffprobe\fR\|(1), \fIffserver\fR\|(1), \fIlibavcodec\fR\|(3)
-.SH "AUTHORS"
-.IX Header "AUTHORS"
-The FFmpeg developers.
-.PP
-For details about the authorship, see the Git history of the project
-(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
-\&\fBgit log\fR in the FFmpeg source directory, or browsing the
-online repository at <\fBhttp://source.ffmpeg.org\fR>.
-.PP
-Maintainers for the specific components are listed in the file
-\&\fI\s-1MAINTAINERS\s0\fR in the source code tree.
diff --git a/contrib/sdk/sources/ffmpeg/doc/ffmpeg-devices.1 b/contrib/sdk/sources/ffmpeg/doc/ffmpeg-devices.1
deleted file mode 100644
index 9847d5c3f4..0000000000
--- a/contrib/sdk/sources/ffmpeg/doc/ffmpeg-devices.1
+++ /dev/null
@@ -1,1208 +0,0 @@
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-.rm #[ #] #H #V #F C
-.\" ========================================================================
-.\"
-.IX Title "FFMPEG-DEVICES 1"
-.TH FFMPEG-DEVICES 1 "2013-12-14" " " " "
-.SH "NAME"
-ffmpeg\-devices \- FFmpeg devices
-.SH "DESCRIPTION"
-.IX Header "DESCRIPTION"
-This document describes the input and output devices provided by the
-libavdevice library.
-.SH "DEVICE OPTIONS"
-.IX Header "DEVICE OPTIONS"
-The libavdevice library provides the same interface as
-libavformat. Namely, an input device is considered like a demuxer, and
-an output device like a muxer, and the interface and generic device
-options are the same provided by libavformat (see the ffmpeg-formats
-manual).
-.PP
-In addition each input or output device may support so-called private
-options, which are specific for that component.
-.PP
-Options may be set by specifying \-\fIoption\fR \fIvalue\fR in the
-FFmpeg tools, or by setting the value explicitly in the device
-\&\f(CW\*(C`AVFormatContext\*(C'\fR options or using the \fIlibavutil/opt.h\fR \s-1API\s0
-for programmatic use.
-.SH "INPUT DEVICES"
-.IX Header "INPUT DEVICES"
-Input devices are configured elements in FFmpeg which allow to access
-the data coming from a multimedia device attached to your system.
-.PP
-When you configure your FFmpeg build, all the supported input devices
-are enabled by default. You can list all available ones using the
-configure option \*(L"\-\-list\-indevs\*(R".
-.PP
-You can disable all the input devices using the configure option
-\&\*(L"\-\-disable\-indevs\*(R", and selectively enable an input device using the
-option "\-\-enable\-indev=\fI\s-1INDEV\s0\fR\*(L", or you can disable a particular
-input device using the option \*(R"\-\-disable\-indev=\fI\s-1INDEV\s0\fR".
-.PP
-The option \*(L"\-formats\*(R" of the ff* tools will display the list of
-supported input devices (amongst the demuxers).
-.PP
-A description of the currently available input devices follows.
-.Sh "alsa"
-.IX Subsection "alsa"
-\&\s-1ALSA\s0 (Advanced Linux Sound Architecture) input device.
-.PP
-To enable this input device during configuration you need libasound
-installed on your system.
-.PP
-This device allows capturing from an \s-1ALSA\s0 device. The name of the
-device to capture has to be an \s-1ALSA\s0 card identifier.
-.PP
-An \s-1ALSA\s0 identifier has the syntax:
-.PP
-.Vb 1
-\&        hw:<CARD>[,<DEV>[,<SUBDEV>]]
-.Ve
-.PP
-where the \fI\s-1DEV\s0\fR and \fI\s-1SUBDEV\s0\fR components are optional.
-.PP
-The three arguments (in order: \fI\s-1CARD\s0\fR,\fI\s-1DEV\s0\fR,\fI\s-1SUBDEV\s0\fR)
-specify card number or identifier, device number and subdevice number
-(\-1 means any).
-.PP
-To see the list of cards currently recognized by your system check the
-files \fI/proc/asound/cards\fR and \fI/proc/asound/devices\fR.
-.PP
-For example to capture with \fBffmpeg\fR from an \s-1ALSA\s0 device with
-card id 0, you may run the command:
-.PP
-.Vb 1
-\&        ffmpeg -f alsa -i hw:0 alsaout.wav
-.Ve
-.PP
-For more information see:
-<\fBhttp://www.alsa\-project.org/alsa\-doc/alsa\-lib/pcm.html\fR>
-.Sh "bktr"
-.IX Subsection "bktr"
-\&\s-1BSD\s0 video input device.
-.Sh "dshow"
-.IX Subsection "dshow"
-Windows DirectShow input device.
-.PP
-DirectShow support is enabled when FFmpeg is built with the mingw\-w64 project.
-Currently only audio and video devices are supported.
-.PP
-Multiple devices may be opened as separate inputs, but they may also be
-opened on the same input, which should improve synchronism between them.
-.PP
-The input name should be in the format:
-.PP
-.Vb 1
-\&        <TYPE>=<NAME>[:<TYPE>=<NAME>]
-.Ve
-.PP
-where \fI\s-1TYPE\s0\fR can be either \fIaudio\fR or \fIvideo\fR,
-and \fI\s-1NAME\s0\fR is the device's name.
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.PP
-If no options are specified, the device's defaults are used.
-If the device does not support the requested options, it will
-fail to open.
-.IP "\fBvideo_size\fR" 4
-.IX Item "video_size"
-Set the video size in the captured video.
-.IP "\fBframerate\fR" 4
-.IX Item "framerate"
-Set the frame rate in the captured video.
-.IP "\fBsample_rate\fR" 4
-.IX Item "sample_rate"
-Set the sample rate (in Hz) of the captured audio.
-.IP "\fBsample_size\fR" 4
-.IX Item "sample_size"
-Set the sample size (in bits) of the captured audio.
-.IP "\fBchannels\fR" 4
-.IX Item "channels"
-Set the number of channels in the captured audio.
-.IP "\fBlist_devices\fR" 4
-.IX Item "list_devices"
-If set to \fBtrue\fR, print a list of devices and exit.
-.IP "\fBlist_options\fR" 4
-.IX Item "list_options"
-If set to \fBtrue\fR, print a list of selected device's options
-and exit.
-.IP "\fBvideo_device_number\fR" 4
-.IX Item "video_device_number"
-Set video device number for devices with same name (starts at 0,
-defaults to 0).
-.IP "\fBaudio_device_number\fR" 4
-.IX Item "audio_device_number"
-Set audio device number for devices with same name (starts at 0,
-defaults to 0).
-.IP "\fBpixel_format\fR" 4
-.IX Item "pixel_format"
-Select pixel format to be used by DirectShow. This may only be set when
-the video codec is not set or set to rawvideo.
-.IP "\fBaudio_buffer_size\fR" 4
-.IX Item "audio_buffer_size"
-Set audio device buffer size in milliseconds (which can directly
-impact latency, depending on the device).
-Defaults to using the audio device's
-default buffer size (typically some multiple of 500ms).
-Setting this value too low can degrade performance.
-See also
-<\fBhttp://msdn.microsoft.com/en\-us/library/windows/desktop/dd377582(v=vs.85).aspx\fR>
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.IP "\(bu" 4
-Print the list of DirectShow supported devices and exit:
-.Sp
-.Vb 1
-\&        $ ffmpeg -list_devices true -f dshow -i dummy
-.Ve
-.IP "\(bu" 4
-Open video device \fICamera\fR:
-.Sp
-.Vb 1
-\&        $ ffmpeg -f dshow -i video="Camera"
-.Ve
-.IP "\(bu" 4
-Open second video device with name \fICamera\fR:
-.Sp
-.Vb 1
-\&        $ ffmpeg -f dshow -video_device_number 1 -i video="Camera"
-.Ve
-.IP "\(bu" 4
-Open video device \fICamera\fR and audio device \fIMicrophone\fR:
-.Sp
-.Vb 1
-\&        $ ffmpeg -f dshow -i video="Camera":audio="Microphone"
-.Ve
-.IP "\(bu" 4
-Print the list of supported options in selected device and exit:
-.Sp
-.Vb 1
-\&        $ ffmpeg -list_options true -f dshow -i video="Camera"
-.Ve
-.Sh "dv1394"
-.IX Subsection "dv1394"
-Linux \s-1DV\s0 1394 input device.
-.Sh "fbdev"
-.IX Subsection "fbdev"
-Linux framebuffer input device.
-.PP
-The Linux framebuffer is a graphic hardware-independent abstraction
-layer to show graphics on a computer monitor, typically on the
-console. It is accessed through a file device node, usually
-\&\fI/dev/fb0\fR.
-.PP
-For more detailed information read the file
-Documentation/fb/framebuffer.txt included in the Linux source tree.
-.PP
-To record from the framebuffer device \fI/dev/fb0\fR with
-\&\fBffmpeg\fR:
-.PP
-.Vb 1
-\&        ffmpeg -f fbdev -r 10 -i /dev/fb0 out.avi
-.Ve
-.PP
-You can take a single screenshot image with the command:
-.PP
-.Vb 1
-\&        ffmpeg -f fbdev -frames:v 1 -r 1 -i /dev/fb0 screenshot.jpeg
-.Ve
-.PP
-See also <\fBhttp://linux\-fbdev.sourceforge.net/\fR>, and \fIfbset\fR\|(1).
-.Sh "iec61883"
-.IX Subsection "iec61883"
-FireWire \s-1DV/HDV\s0 input device using libiec61883.
-.PP
-To enable this input device, you need libiec61883, libraw1394 and
-libavc1394 installed on your system. Use the configure option
-\&\f(CW\*(C`\-\-enable\-libiec61883\*(C'\fR to compile with the device enabled.
-.PP
-The iec61883 capture device supports capturing from a video device
-connected via \s-1IEEE1394\s0 (FireWire), using libiec61883 and the new Linux
-FireWire stack (juju). This is the default \s-1DV/HDV\s0 input method in Linux
-Kernel 2.6.37 and later, since the old FireWire stack was removed.
-.PP
-Specify the FireWire port to be used as input file, or \*(L"auto\*(R"
-to choose the first port connected.
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.IP "\fBdvtype\fR" 4
-.IX Item "dvtype"
-Override autodetection of \s-1DV/HDV\s0. This should only be used if auto
-detection does not work, or if usage of a different device type
-should be prohibited. Treating a \s-1DV\s0 device as \s-1HDV\s0 (or vice versa) will
-not work and result in undefined behavior.
-The values \fBauto\fR, \fBdv\fR and \fBhdv\fR are supported.
-.IP "\fBdvbuffer\fR" 4
-.IX Item "dvbuffer"
-Set maxiumum size of buffer for incoming data, in frames. For \s-1DV\s0, this
-is an exact value. For \s-1HDV\s0, it is not frame exact, since \s-1HDV\s0 does
-not have a fixed frame size.
-.IP "\fBdvguid\fR" 4
-.IX Item "dvguid"
-Select the capture device by specifying it's \s-1GUID\s0. Capturing will only
-be performed from the specified device and fails if no device with the
-given \s-1GUID\s0 is found. This is useful to select the input if multiple
-devices are connected at the same time.
-Look at /sys/bus/firewire/devices to find out the GUIDs.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.IP "\(bu" 4
-Grab and show the input of a FireWire \s-1DV/HDV\s0 device.
-.Sp
-.Vb 1
-\&        ffplay -f iec61883 -i auto
-.Ve
-.IP "\(bu" 4
-Grab and record the input of a FireWire \s-1DV/HDV\s0 device,
-using a packet buffer of 100000 packets if the source is \s-1HDV\s0.
-.Sp
-.Vb 1
-\&        ffmpeg -f iec61883 -i auto -hdvbuffer 100000 out.mpg
-.Ve
-.Sh "jack"
-.IX Subsection "jack"
-\&\s-1JACK\s0 input device.
-.PP
-To enable this input device during configuration you need libjack
-installed on your system.
-.PP
-A \s-1JACK\s0 input device creates one or more \s-1JACK\s0 writable clients, one for
-each audio channel, with name \fIclient_name\fR:input_\fIN\fR, where
-\&\fIclient_name\fR is the name provided by the application, and \fIN\fR
-is a number which identifies the channel.
-Each writable client will send the acquired data to the FFmpeg input
-device.
-.PP
-Once you have created one or more \s-1JACK\s0 readable clients, you need to
-connect them to one or more \s-1JACK\s0 writable clients.
-.PP
-To connect or disconnect \s-1JACK\s0 clients you can use the \fBjack_connect\fR
-and \fBjack_disconnect\fR programs, or do it through a graphical interface,
-for example with \fBqjackctl\fR.
-.PP
-To list the \s-1JACK\s0 clients and their properties you can invoke the command
-\&\fBjack_lsp\fR.
-.PP
-Follows an example which shows how to capture a \s-1JACK\s0 readable client
-with \fBffmpeg\fR.
-.PP
-.Vb 2
-\&        # Create a JACK writable client with name "ffmpeg".
-\&        $ ffmpeg -f jack -i ffmpeg -y out.wav
-.Ve
-.PP
-.Vb 2
-\&        # Start the sample jack_metro readable client.
-\&        $ jack_metro -b 120 -d 0.2 -f 4000
-.Ve
-.PP
-.Vb 8
-\&        # List the current JACK clients.
-\&        $ jack_lsp -c
-\&        system:capture_1
-\&        system:capture_2
-\&        system:playback_1
-\&        system:playback_2
-\&        ffmpeg:input_1
-\&        metro:120_bpm
-.Ve
-.PP
-.Vb 2
-\&        # Connect metro to the ffmpeg writable client.
-\&        $ jack_connect metro:120_bpm ffmpeg:input_1
-.Ve
-.PP
-For more information read:
-<\fBhttp://jackaudio.org/\fR>
-.Sh "lavfi"
-.IX Subsection "lavfi"
-Libavfilter input virtual device.
-.PP
-This input device reads data from the open output pads of a libavfilter
-filtergraph.
-.PP
-For each filtergraph open output, the input device will create a
-corresponding stream which is mapped to the generated output. Currently
-only video data is supported. The filtergraph is specified through the
-option \fBgraph\fR.
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.IP "\fBgraph\fR" 4
-.IX Item "graph"
-Specify the filtergraph to use as input. Each video open output must be
-labelled by a unique string of the form "out\fIN\fR", where \fIN\fR is a
-number starting from 0 corresponding to the mapped input stream
-generated by the device.
-The first unlabelled output is automatically assigned to the \*(L"out0\*(R"
-label, but all the others need to be specified explicitly.
-.Sp
-If not specified defaults to the filename specified for the input
-device.
-.IP "\fBgraph_file\fR" 4
-.IX Item "graph_file"
-Set the filename of the filtergraph to be read and sent to the other
-filters. Syntax of the filtergraph is the same as the one specified by
-the option \fIgraph\fR.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.IP "\(bu" 4
-Create a color video stream and play it back with \fBffplay\fR:
-.Sp
-.Vb 1
-\&        ffplay -f lavfi -graph "color=c=pink [out0]" dummy
-.Ve
-.IP "\(bu" 4
-As the previous example, but use filename for specifying the graph
-description, and omit the \*(L"out0\*(R" label:
-.Sp
-.Vb 1
-\&        ffplay -f lavfi color=c=pink
-.Ve
-.IP "\(bu" 4
-Create three different video test filtered sources and play them:
-.Sp
-.Vb 1
-\&        ffplay -f lavfi -graph "testsrc [out0]; testsrc,hflip [out1]; testsrc,negate [out2]" test3
-.Ve
-.IP "\(bu" 4
-Read an audio stream from a file using the amovie source and play it
-back with \fBffplay\fR:
-.Sp
-.Vb 1
-\&        ffplay -f lavfi "amovie=test.wav"
-.Ve
-.IP "\(bu" 4
-Read an audio stream and a video stream and play it back with
-\&\fBffplay\fR:
-.Sp
-.Vb 1
-\&        ffplay -f lavfi "movie=test.avi[out0];amovie=test.wav[out1]"
-.Ve
-.Sh "libdc1394"
-.IX Subsection "libdc1394"
-\&\s-1IIDC1394\s0 input device, based on libdc1394 and libraw1394.
-.Sh "openal"
-.IX Subsection "openal"
-The OpenAL input device provides audio capture on all systems with a
-working OpenAL 1.1 implementation.
-.PP
-To enable this input device during configuration, you need OpenAL
-headers and libraries installed on your system, and need to configure
-FFmpeg with \f(CW\*(C`\-\-enable\-openal\*(C'\fR.
-.PP
-OpenAL headers and libraries should be provided as part of your OpenAL
-implementation, or as an additional download (an \s-1SDK\s0). Depending on your
-installation you may need to specify additional flags via the
-\&\f(CW\*(C`\-\-extra\-cflags\*(C'\fR and \f(CW\*(C`\-\-extra\-ldflags\*(C'\fR for allowing the build
-system to locate the OpenAL headers and libraries.
-.PP
-An incomplete list of OpenAL implementations follows:
-.IP "\fBCreative\fR" 4
-.IX Item "Creative"
-The official Windows implementation, providing hardware acceleration
-with supported devices and software fallback.
-See <\fBhttp://openal.org/\fR>.
-.IP "\fBOpenAL Soft\fR" 4
-.IX Item "OpenAL Soft"
-Portable, open source (\s-1LGPL\s0) software implementation. Includes
-backends for the most common sound APIs on the Windows, Linux,
-Solaris, and \s-1BSD\s0 operating systems.
-See <\fBhttp://kcat.strangesoft.net/openal.html\fR>.
-.IP "\fBApple\fR" 4
-.IX Item "Apple"
-OpenAL is part of Core Audio, the official Mac \s-1OS\s0 X Audio interface.
-See <\fBhttp://developer.apple.com/technologies/mac/audio\-and\-video.html\fR>
-.PP
-This device allows to capture from an audio input device handled
-through OpenAL.
-.PP
-You need to specify the name of the device to capture in the provided
-filename. If the empty string is provided, the device will
-automatically select the default device. You can get the list of the
-supported devices by using the option \fIlist_devices\fR.
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.IP "\fBchannels\fR" 4
-.IX Item "channels"
-Set the number of channels in the captured audio. Only the values
-\&\fB1\fR (monaural) and \fB2\fR (stereo) are currently supported.
-Defaults to \fB2\fR.
-.IP "\fBsample_size\fR" 4
-.IX Item "sample_size"
-Set the sample size (in bits) of the captured audio. Only the values
-\&\fB8\fR and \fB16\fR are currently supported. Defaults to
-\&\fB16\fR.
-.IP "\fBsample_rate\fR" 4
-.IX Item "sample_rate"
-Set the sample rate (in Hz) of the captured audio.
-Defaults to \fB44.1k\fR.
-.IP "\fBlist_devices\fR" 4
-.IX Item "list_devices"
-If set to \fBtrue\fR, print a list of devices and exit.
-Defaults to \fBfalse\fR.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-Print the list of OpenAL supported devices and exit:
-.PP
-.Vb 1
-\&        $ ffmpeg -list_devices true -f openal -i dummy out.ogg
-.Ve
-.PP
-Capture from the OpenAL device \fI\s-1DR\-BT101\s0 via PulseAudio\fR:
-.PP
-.Vb 1
-\&        $ ffmpeg -f openal -i 'DR-BT101 via PulseAudio' out.ogg
-.Ve
-.PP
-Capture from the default device (note the empty string '' as filename):
-.PP
-.Vb 1
-\&        $ ffmpeg -f openal -i '' out.ogg
-.Ve
-.PP
-Capture from two devices simultaneously, writing to two different files,
-within the same \fBffmpeg\fR command:
-.PP
-.Vb 1
-\&        $ ffmpeg -f openal -i 'DR-BT101 via PulseAudio' out1.ogg -f openal -i 'ALSA Default' out2.ogg
-.Ve
-.PP
-Note: not all OpenAL implementations support multiple simultaneous capture \-
-try the latest OpenAL Soft if the above does not work.
-.Sh "oss"
-.IX Subsection "oss"
-Open Sound System input device.
-.PP
-The filename to provide to the input device is the device node
-representing the \s-1OSS\s0 input device, and is usually set to
-\&\fI/dev/dsp\fR.
-.PP
-For example to grab from \fI/dev/dsp\fR using \fBffmpeg\fR use the
-command:
-.PP
-.Vb 1
-\&        ffmpeg -f oss -i /dev/dsp /tmp/oss.wav
-.Ve
-.PP
-For more information about \s-1OSS\s0 see:
-<\fBhttp://manuals.opensound.com/usersguide/dsp.html\fR>
-.Sh "pulse"
-.IX Subsection "pulse"
-PulseAudio input device.
-.PP
-To enable this output device you need to configure FFmpeg with \f(CW\*(C`\-\-enable\-libpulse\*(C'\fR.
-.PP
-The filename to provide to the input device is a source device or the
-string \*(L"default\*(R"
-.PP
-To list the PulseAudio source devices and their properties you can invoke
-the command \fBpactl list sources\fR.
-.PP
-More information about PulseAudio can be found on <\fBhttp://www.pulseaudio.org\fR>.
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.IP "\fBserver\fR" 4
-.IX Item "server"
-Connect to a specific PulseAudio server, specified by an \s-1IP\s0 address.
-Default server is used when not provided.
-.IP "\fBname\fR" 4
-.IX Item "name"
-Specify the application name PulseAudio will use when showing active clients,
-by default it is the \f(CW\*(C`LIBAVFORMAT_IDENT\*(C'\fR string.
-.IP "\fBstream_name\fR" 4
-.IX Item "stream_name"
-Specify the stream name PulseAudio will use when showing active streams,
-by default it is \*(L"record\*(R".
-.IP "\fBsample_rate\fR" 4
-.IX Item "sample_rate"
-Specify the samplerate in Hz, by default 48kHz is used.
-.IP "\fBchannels\fR" 4
-.IX Item "channels"
-Specify the channels in use, by default 2 (stereo) is set.
-.IP "\fBframe_size\fR" 4
-.IX Item "frame_size"
-Specify the number of bytes per frame, by default it is set to 1024.
-.IP "\fBfragment_size\fR" 4
-.IX Item "fragment_size"
-Specify the minimal buffering fragment in PulseAudio, it will affect the
-audio latency. By default it is unset.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-Record a stream from default device:
-.PP
-.Vb 1
-\&        ffmpeg -f pulse -i default /tmp/pulse.wav
-.Ve
-.Sh "sndio"
-.IX Subsection "sndio"
-sndio input device.
-.PP
-To enable this input device during configuration you need libsndio
-installed on your system.
-.PP
-The filename to provide to the input device is the device node
-representing the sndio input device, and is usually set to
-\&\fI/dev/audio0\fR.
-.PP
-For example to grab from \fI/dev/audio0\fR using \fBffmpeg\fR use the
-command:
-.PP
-.Vb 1
-\&        ffmpeg -f sndio -i /dev/audio0 /tmp/oss.wav
-.Ve
-.Sh "video4linux2, v4l2"
-.IX Subsection "video4linux2, v4l2"
-Video4Linux2 input video device.
-.PP
-\&\*(L"v4l2\*(R" can be used as alias for \*(L"video4linux2\*(R".
-.PP
-If FFmpeg is built with v4l\-utils support (by using the
-\&\f(CW\*(C`\-\-enable\-libv4l2\*(C'\fR configure option), it is possible to use it with the
-\&\f(CW\*(C`\-use_libv4l2\*(C'\fR input device option.
-.PP
-The name of the device to grab is a file device node, usually Linux
-systems tend to automatically create such nodes when the device
-(e.g. an \s-1USB\s0 webcam) is plugged into the system, and has a name of the
-kind \fI/dev/video\fIN\fI\fR, where \fIN\fR is a number associated to
-the device.
-.PP
-Video4Linux2 devices usually support a limited set of
-\&\fIwidth\fRx\fIheight\fR sizes and frame rates. You can check which are
-supported using \fB\-list_formats all\fR for Video4Linux2 devices.
-Some devices, like \s-1TV\s0 cards, support one or more standards. It is possible
-to list all the supported standards using \fB\-list_standards all\fR.
-.PP
-The time base for the timestamps is 1 microsecond. Depending on the kernel
-version and configuration, the timestamps may be derived from the real time
-clock (origin at the Unix Epoch) or the monotonic clock (origin usually at
-boot time, unaffected by \s-1NTP\s0 or manual changes to the clock). The
-\&\fB\-timestamps abs\fR or \fB\-ts abs\fR option can be used to force
-conversion into the real time clock.
-.PP
-Some usage examples of the video4linux2 device with \fBffmpeg\fR
-and \fBffplay\fR:
-.IP "\(bu" 4
-Grab and show the input of a video4linux2 device:
-.Sp
-.Vb 1
-\&        ffplay -f video4linux2 -framerate 30 -video_size hd720 /dev/video0
-.Ve
-.IP "\(bu" 4
-Grab and record the input of a video4linux2 device, leave the
-frame rate and size as previously set:
-.Sp
-.Vb 1
-\&        ffmpeg -f video4linux2 -input_format mjpeg -i /dev/video0 out.mpeg
-.Ve
-.PP
-For more information about Video4Linux, check <\fBhttp://linuxtv.org/\fR>.
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.IP "\fBstandard\fR" 4
-.IX Item "standard"
-Set the standard. Must be the name of a supported standard. To get a
-list of the supported standards, use the \fBlist_standards\fR
-option.
-.IP "\fBchannel\fR" 4
-.IX Item "channel"
-Set the input channel number. Default to \-1, which means using the
-previously selected channel.
-.IP "\fBvideo_size\fR" 4
-.IX Item "video_size"
-Set the video frame size. The argument must be a string in the form
-\&\fI\s-1WIDTH\s0\fRx\fI\s-1HEIGHT\s0\fR or a valid size abbreviation.
-.IP "\fBpixel_format\fR" 4
-.IX Item "pixel_format"
-Select the pixel format (only valid for raw video input).
-.IP "\fBinput_format\fR" 4
-.IX Item "input_format"
-Set the preferred pixel format (for raw video) or a codec name.
-This option allows to select the input format, when several are
-available.
-.IP "\fBframerate\fR" 4
-.IX Item "framerate"
-Set the preferred video frame rate.
-.IP "\fBlist_formats\fR" 4
-.IX Item "list_formats"
-List available formats (supported pixel formats, codecs, and frame
-sizes) and exit.
-.Sp
-Available values are:
-.RS 4
-.IP "\fBall\fR" 4
-.IX Item "all"
-Show all available (compressed and non\-compressed) formats.
-.IP "\fBraw\fR" 4
-.IX Item "raw"
-Show only raw video (non\-compressed) formats.
-.IP "\fBcompressed\fR" 4
-.IX Item "compressed"
-Show only compressed formats.
-.RE
-.RS 4
-.RE
-.IP "\fBlist_standards\fR" 4
-.IX Item "list_standards"
-List supported standards and exit.
-.Sp
-Available values are:
-.RS 4
-.IP "\fBall\fR" 4
-.IX Item "all"
-Show all supported standards.
-.RE
-.RS 4
-.RE
-.IP "\fBtimestamps, ts\fR" 4
-.IX Item "timestamps, ts"
-Set type of timestamps for grabbed frames.
-.Sp
-Available values are:
-.RS 4
-.IP "\fBdefault\fR" 4
-.IX Item "default"
-Use timestamps from the kernel.
-.IP "\fBabs\fR" 4
-.IX Item "abs"
-Use absolute timestamps (wall clock).
-.IP "\fBmono2abs\fR" 4
-.IX Item "mono2abs"
-Force conversion from monotonic to absolute timestamps.
-.RE
-.RS 4
-.Sp
-Default value is \f(CW\*(C`default\*(C'\fR.
-.RE
-.Sh "vfwcap"
-.IX Subsection "vfwcap"
-VfW (Video for Windows) capture input device.
-.PP
-The filename passed as input is the capture driver number, ranging from
-0 to 9. You may use \*(L"list\*(R" as filename to print a list of drivers. Any
-other filename will be interpreted as device number 0.
-.Sh "x11grab"
-.IX Subsection "x11grab"
-X11 video input device.
-.PP
-This device allows to capture a region of an X11 display.
-.PP
-The filename passed as input has the syntax:
-.PP
-.Vb 1
-\&        [<hostname>]:<display_number>.<screen_number>[+<x_offset>,<y_offset>]
-.Ve
-.PP
-\&\fIhostname\fR:\fIdisplay_number\fR.\fIscreen_number\fR specifies the
-X11 display name of the screen to grab from. \fIhostname\fR can be
-omitted, and defaults to \*(L"localhost\*(R". The environment variable
-\&\fB\s-1DISPLAY\s0\fR contains the default display name.
-.PP
-\&\fIx_offset\fR and \fIy_offset\fR specify the offsets of the grabbed
-area with respect to the top-left border of the X11 screen. They
-default to 0.
-.PP
-Check the X11 documentation (e.g. man X) for more detailed information.
-.PP
-Use the \fBdpyinfo\fR program for getting basic information about the
-properties of your X11 display (e.g. grep for \*(L"name\*(R" or \*(L"dimensions\*(R").
-.PP
-For example to grab from \fI:0.0\fR using \fBffmpeg\fR:
-.PP
-.Vb 1
-\&        ffmpeg -f x11grab -framerate 25 -video_size cif -i :0.0 out.mpg
-.Ve
-.PP
-Grab at position \f(CW\*(C`10,20\*(C'\fR:
-.PP
-.Vb 1
-\&        ffmpeg -f x11grab -framerate 25 -video_size cif -i :0.0+10,20 out.mpg
-.Ve
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.IP "\fBdraw_mouse\fR" 4
-.IX Item "draw_mouse"
-Specify whether to draw the mouse pointer. A value of \f(CW0\fR specify
-not to draw the pointer. Default value is \f(CW1\fR.
-.IP "\fBfollow_mouse\fR" 4
-.IX Item "follow_mouse"
-Make the grabbed area follow the mouse. The argument can be
-\&\f(CW\*(C`centered\*(C'\fR or a number of pixels \fI\s-1PIXELS\s0\fR.
-.Sp
-When it is specified with \*(L"centered\*(R", the grabbing region follows the mouse
-pointer and keeps the pointer at the center of region; otherwise, the region
-follows only when the mouse pointer reaches within \fI\s-1PIXELS\s0\fR (greater than
-zero) to the edge of region.
-.Sp
-For example:
-.Sp
-.Vb 1
-\&        ffmpeg -f x11grab -follow_mouse centered -framerate 25 -video_size cif -i :0.0 out.mpg
-.Ve
-.Sp
-To follow only when the mouse pointer reaches within 100 pixels to edge:
-.Sp
-.Vb 1
-\&        ffmpeg -f x11grab -follow_mouse 100 -framerate 25 -video_size cif -i :0.0 out.mpg
-.Ve
-.IP "\fBframerate\fR" 4
-.IX Item "framerate"
-Set the grabbing frame rate. Default value is \f(CW\*(C`ntsc\*(C'\fR,
-corresponding to a frame rate of \f(CW\*(C`30000/1001\*(C'\fR.
-.IP "\fBshow_region\fR" 4
-.IX Item "show_region"
-Show grabbed region on screen.
-.Sp
-If \fIshow_region\fR is specified with \f(CW1\fR, then the grabbing
-region will be indicated on screen. With this option, it is easy to
-know what is being grabbed if only a portion of the screen is grabbed.
-.Sp
-For example:
-.Sp
-.Vb 1
-\&        ffmpeg -f x11grab -show_region 1 -framerate 25 -video_size cif -i :0.0+10,20 out.mpg
-.Ve
-.Sp
-With \fIfollow_mouse\fR:
-.Sp
-.Vb 1
-\&        ffmpeg -f x11grab -follow_mouse centered -show_region 1 -framerate 25 -video_size cif -i :0.0 out.mpg
-.Ve
-.IP "\fBvideo_size\fR" 4
-.IX Item "video_size"
-Set the video frame size. Default value is \f(CW\*(C`vga\*(C'\fR.
-.SH "OUTPUT DEVICES"
-.IX Header "OUTPUT DEVICES"
-Output devices are configured elements in FFmpeg that can write
-multimedia data to an output device attached to your system.
-.PP
-When you configure your FFmpeg build, all the supported output devices
-are enabled by default. You can list all available ones using the
-configure option \*(L"\-\-list\-outdevs\*(R".
-.PP
-You can disable all the output devices using the configure option
-\&\*(L"\-\-disable\-outdevs\*(R", and selectively enable an output device using the
-option "\-\-enable\-outdev=\fI\s-1OUTDEV\s0\fR\*(L", or you can disable a particular
-input device using the option \*(R"\-\-disable\-outdev=\fI\s-1OUTDEV\s0\fR".
-.PP
-The option \*(L"\-formats\*(R" of the ff* tools will display the list of
-enabled output devices (amongst the muxers).
-.PP
-A description of the currently available output devices follows.
-.Sh "alsa"
-.IX Subsection "alsa"
-\&\s-1ALSA\s0 (Advanced Linux Sound Architecture) output device.
-.Sh "caca"
-.IX Subsection "caca"
-\&\s-1CACA\s0 output device.
-.PP
-This output device allows to show a video stream in \s-1CACA\s0 window.
-Only one \s-1CACA\s0 window is allowed per application, so you can
-have only one instance of this output device in an application.
-.PP
-To enable this output device you need to configure FFmpeg with
-\&\f(CW\*(C`\-\-enable\-libcaca\*(C'\fR.
-libcaca is a graphics library that outputs text instead of pixels.
-.PP
-For more information about libcaca, check:
-<\fBhttp://caca.zoy.org/wiki/libcaca\fR>
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.IP "\fBwindow_title\fR" 4
-.IX Item "window_title"
-Set the \s-1CACA\s0 window title, if not specified default to the filename
-specified for the output device.
-.IP "\fBwindow_size\fR" 4
-.IX Item "window_size"
-Set the \s-1CACA\s0 window size, can be a string of the form
-\&\fIwidth\fRx\fIheight\fR or a video size abbreviation.
-If not specified it defaults to the size of the input video.
-.IP "\fBdriver\fR" 4
-.IX Item "driver"
-Set display driver.
-.IP "\fBalgorithm\fR" 4
-.IX Item "algorithm"
-Set dithering algorithm. Dithering is necessary
-because the picture being rendered has usually far more colours than
-the available palette.
-The accepted values are listed with \f(CW\*(C`\-list_dither algorithms\*(C'\fR.
-.IP "\fBantialias\fR" 4
-.IX Item "antialias"
-Set antialias method. Antialiasing smoothens the rendered
-image and avoids the commonly seen staircase effect.
-The accepted values are listed with \f(CW\*(C`\-list_dither antialiases\*(C'\fR.
-.IP "\fBcharset\fR" 4
-.IX Item "charset"
-Set which characters are going to be used when rendering text.
-The accepted values are listed with \f(CW\*(C`\-list_dither charsets\*(C'\fR.
-.IP "\fBcolor\fR" 4
-.IX Item "color"
-Set color to be used when rendering text.
-The accepted values are listed with \f(CW\*(C`\-list_dither colors\*(C'\fR.
-.IP "\fBlist_drivers\fR" 4
-.IX Item "list_drivers"
-If set to \fBtrue\fR, print a list of available drivers and exit.
-.IP "\fBlist_dither\fR" 4
-.IX Item "list_dither"
-List available dither options related to the argument.
-The argument must be one of \f(CW\*(C`algorithms\*(C'\fR, \f(CW\*(C`antialiases\*(C'\fR,
-\&\f(CW\*(C`charsets\*(C'\fR, \f(CW\*(C`colors\*(C'\fR.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.IP "\(bu" 4
-The following command shows the \fBffmpeg\fR output is an
-\&\s-1CACA\s0 window, forcing its size to 80x25:
-.Sp
-.Vb 1
-\&        ffmpeg -i INPUT -vcodec rawvideo -pix_fmt rgb24 -window_size 80x25 -f caca -
-.Ve
-.IP "\(bu" 4
-Show the list of available drivers and exit:
-.Sp
-.Vb 1
-\&        ffmpeg -i INPUT -pix_fmt rgb24 -f caca -list_drivers true -
-.Ve
-.IP "\(bu" 4
-Show the list of available dither colors and exit:
-.Sp
-.Vb 1
-\&        ffmpeg -i INPUT -pix_fmt rgb24 -f caca -list_dither colors -
-.Ve
-.Sh "fbdev"
-.IX Subsection "fbdev"
-Linux framebuffer output device.
-.PP
-The Linux framebuffer is a graphic hardware-independent abstraction
-layer to show graphics on a computer monitor, typically on the
-console. It is accessed through a file device node, usually
-\&\fI/dev/fb0\fR.
-.PP
-For more detailed information read the file
-\&\fIDocumentation/fb/framebuffer.txt\fR included in the Linux source tree.
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.IP "\fBxoffset\fR" 4
-.IX Item "xoffset"
-.PD 0
-.IP "\fByoffset\fR" 4
-.IX Item "yoffset"
-.PD
-Set x/y coordinate of top left corner. Default is 0.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-Play a file on framebuffer device \fI/dev/fb0\fR.
-Required pixel format depends on current framebuffer settings.
-.PP
-.Vb 1
-\&        ffmpeg -re -i INPUT -vcodec rawvideo -pix_fmt bgra -f fbdev /dev/fb0
-.Ve
-.PP
-See also <\fBhttp://linux\-fbdev.sourceforge.net/\fR>, and \fIfbset\fR\|(1).
-.Sh "oss"
-.IX Subsection "oss"
-\&\s-1OSS\s0 (Open Sound System) output device.
-.Sh "pulse"
-.IX Subsection "pulse"
-PulseAudio output device.
-.PP
-To enable this output device you need to configure FFmpeg with \f(CW\*(C`\-\-enable\-libpulse\*(C'\fR.
-.PP
-More information about PulseAudio can be found on <\fBhttp://www.pulseaudio.org\fR>
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.IP "\fBserver\fR" 4
-.IX Item "server"
-Connect to a specific PulseAudio server, specified by an \s-1IP\s0 address.
-Default server is used when not provided.
-.IP "\fBname\fR" 4
-.IX Item "name"
-Specify the application name PulseAudio will use when showing active clients,
-by default it is the \f(CW\*(C`LIBAVFORMAT_IDENT\*(C'\fR string.
-.IP "\fBstream_name\fR" 4
-.IX Item "stream_name"
-Specify the stream name PulseAudio will use when showing active streams,
-by default it is set to the specified output name.
-.IP "\fBdevice\fR" 4
-.IX Item "device"
-Specify the device to use. Default device is used when not provided.
-List of output devices can be obtained with command \fBpactl list sinks\fR.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-Play a file on default device on default server:
-.PP
-.Vb 1
-\&        ffmpeg  -i INPUT -f pulse "stream name"
-.Ve
-.Sh "sdl"
-.IX Subsection "sdl"
-\&\s-1SDL\s0 (Simple DirectMedia Layer) output device.
-.PP
-This output device allows to show a video stream in an \s-1SDL\s0
-window. Only one \s-1SDL\s0 window is allowed per application, so you can
-have only one instance of this output device in an application.
-.PP
-To enable this output device you need libsdl installed on your system
-when configuring your build.
-.PP
-For more information about \s-1SDL\s0, check:
-<\fBhttp://www.libsdl.org/\fR>
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.IP "\fBwindow_title\fR" 4
-.IX Item "window_title"
-Set the \s-1SDL\s0 window title, if not specified default to the filename
-specified for the output device.
-.IP "\fBicon_title\fR" 4
-.IX Item "icon_title"
-Set the name of the iconified \s-1SDL\s0 window, if not specified it is set
-to the same value of \fIwindow_title\fR.
-.IP "\fBwindow_size\fR" 4
-.IX Item "window_size"
-Set the \s-1SDL\s0 window size, can be a string of the form
-\&\fIwidth\fRx\fIheight\fR or a video size abbreviation.
-If not specified it defaults to the size of the input video,
-downscaled according to the aspect ratio.
-.IP "\fBwindow_fullscreen\fR" 4
-.IX Item "window_fullscreen"
-Set fullscreen mode when non-zero value is provided.
-Zero is a default.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-The following command shows the \fBffmpeg\fR output is an
-\&\s-1SDL\s0 window, forcing its size to the qcif format:
-.PP
-.Vb 1
-\&        ffmpeg -i INPUT -vcodec rawvideo -pix_fmt yuv420p -window_size qcif -f sdl "SDL output"
-.Ve
-.Sh "sndio"
-.IX Subsection "sndio"
-sndio audio output device.
-.Sh "xv"
-.IX Subsection "xv"
-\&\s-1XV\s0 (XVideo) output device.
-.PP
-This output device allows to show a video stream in a X Window System
-window.
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.IP "\fBdisplay_name\fR" 4
-.IX Item "display_name"
-Specify the hardware display name, which determines the display and
-communications domain to be used.
-.Sp
-The display name or \s-1DISPLAY\s0 environment variable can be a string in
-the format \fIhostname\fR[:\fInumber\fR[.\fIscreen_number\fR]].
-.Sp
-\&\fIhostname\fR specifies the name of the host machine on which the
-display is physically attached. \fInumber\fR specifies the number of
-the display server on that host machine. \fIscreen_number\fR specifies
-the screen to be used on that server.
-.Sp
-If unspecified, it defaults to the value of the \s-1DISPLAY\s0 environment
-variable.
-.Sp
-For example, \f(CW\*(C`dual\-headed:0.1\*(C'\fR would specify screen 1 of display
-0 on the machine named ``dual\-headed''.
-.Sp
-Check the X11 specification for more detailed information about the
-display name format.
-.IP "\fBwindow_size\fR" 4
-.IX Item "window_size"
-Set the created window size, can be a string of the form
-\&\fIwidth\fRx\fIheight\fR or a video size abbreviation. If not
-specified it defaults to the size of the input video.
-.IP "\fBwindow_x\fR" 4
-.IX Item "window_x"
-.PD 0
-.IP "\fBwindow_y\fR" 4
-.IX Item "window_y"
-.PD
-Set the X and Y window offsets for the created window. They are both
-set to 0 by default. The values may be ignored by the window manager.
-.IP "\fBwindow_title\fR" 4
-.IX Item "window_title"
-Set the window title, if not specified default to the filename
-specified for the output device.
-.PP
-For more information about XVideo see <\fBhttp://www.x.org/\fR>.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.IP "\(bu" 4
-Decode, display and encode video input with \fBffmpeg\fR at the
-same time:
-.Sp
-.Vb 1
-\&        ffmpeg -i INPUT OUTPUT -f xv display
-.Ve
-.IP "\(bu" 4
-Decode and display the input video to multiple X11 windows:
-.Sp
-.Vb 1
-\&        ffmpeg -i INPUT -f xv normal -vf negate -f xv negated
-.Ve
-.SH "SEE ALSO"
-.IX Header "SEE ALSO"
-\&\fIffmpeg\fR\|(1), \fIffplay\fR\|(1), \fIffprobe\fR\|(1), \fIffserver\fR\|(1), \fIlibavdevice\fR\|(3)
-.SH "AUTHORS"
-.IX Header "AUTHORS"
-The FFmpeg developers.
-.PP
-For details about the authorship, see the Git history of the project
-(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
-\&\fBgit log\fR in the FFmpeg source directory, or browsing the
-online repository at <\fBhttp://source.ffmpeg.org\fR>.
-.PP
-Maintainers for the specific components are listed in the file
-\&\fI\s-1MAINTAINERS\s0\fR in the source code tree.
diff --git a/contrib/sdk/sources/ffmpeg/doc/ffmpeg-formats.1 b/contrib/sdk/sources/ffmpeg/doc/ffmpeg-formats.1
deleted file mode 100644
index f618fc86a4..0000000000
--- a/contrib/sdk/sources/ffmpeg/doc/ffmpeg-formats.1
+++ /dev/null
@@ -1,1700 +0,0 @@
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-.rm #[ #] #H #V #F C
-.\" ========================================================================
-.\"
-.IX Title "FFMPEG-FORMATS 1"
-.TH FFMPEG-FORMATS 1 "2013-12-14" " " " "
-.SH "NAME"
-ffmpeg\-formats \- FFmpeg formats
-.SH "DESCRIPTION"
-.IX Header "DESCRIPTION"
-This document describes the supported formats (muxers and demuxers)
-provided by the libavformat library.
-.SH "FORMAT OPTIONS"
-.IX Header "FORMAT OPTIONS"
-The libavformat library provides some generic global options, which
-can be set on all the muxers and demuxers. In addition each muxer or
-demuxer may support so-called private options, which are specific for
-that component.
-.PP
-Options may be set by specifying \-\fIoption\fR \fIvalue\fR in the
-FFmpeg tools, or by setting the value explicitly in the
-\&\f(CW\*(C`AVFormatContext\*(C'\fR options or using the \fIlibavutil/opt.h\fR \s-1API\s0
-for programmatic use.
-.PP
-The list of supported options follows:
-.IP "\fBavioflags\fR \fIflags\fR \fB(\fR\fIinput/output\fR\fB)\fR" 4
-.IX Item "avioflags flags (input/output)"
-Possible values:
-.RS 4
-.IP "\fBdirect\fR" 4
-.IX Item "direct"
-Reduce buffering.
-.RE
-.RS 4
-.RE
-.IP "\fBprobesize\fR \fIinteger\fR \fB(\fR\fIinput\fR\fB)\fR" 4
-.IX Item "probesize integer (input)"
-Set probing size in bytes, i.e. the size of the data to analyze to get
-stream information. A higher value will allow to detect more
-information in case it is dispersed into the stream, but will increase
-latency. Must be an integer not lesser than 32. It is 5000000 by default.
-.IP "\fBpacketsize\fR \fIinteger\fR \fB(\fR\fIoutput\fR\fB)\fR" 4
-.IX Item "packetsize integer (output)"
-Set packet size.
-.IP "\fBfflags\fR \fIflags\fR \fB(\fR\fIinput/output\fR\fB)\fR" 4
-.IX Item "fflags flags (input/output)"
-Set format flags.
-.Sp
-Possible values:
-.RS 4
-.IP "\fBignidx\fR" 4
-.IX Item "ignidx"
-Ignore index.
-.IP "\fBgenpts\fR" 4
-.IX Item "genpts"
-Generate \s-1PTS\s0.
-.IP "\fBnofillin\fR" 4
-.IX Item "nofillin"
-Do not fill in missing values that can be exactly calculated.
-.IP "\fBnoparse\fR" 4
-.IX Item "noparse"
-Disable AVParsers, this needs \f(CW\*(C`+nofillin\*(C'\fR too.
-.IP "\fBigndts\fR" 4
-.IX Item "igndts"
-Ignore \s-1DTS\s0.
-.IP "\fBdiscardcorrupt\fR" 4
-.IX Item "discardcorrupt"
-Discard corrupted frames.
-.IP "\fBsortdts\fR" 4
-.IX Item "sortdts"
-Try to interleave output packets by \s-1DTS\s0.
-.IP "\fBkeepside\fR" 4
-.IX Item "keepside"
-Do not merge side data.
-.IP "\fBlatm\fR" 4
-.IX Item "latm"
-Enable \s-1RTP\s0 \s-1MP4A\-LATM\s0 payload.
-.IP "\fBnobuffer\fR" 4
-.IX Item "nobuffer"
-Reduce the latency introduced by optional buffering
-.RE
-.RS 4
-.RE
-.IP "\fBseek2any\fR \fIinteger\fR \fB(\fR\fIinput\fR\fB)\fR" 4
-.IX Item "seek2any integer (input)"
-Allow seeking to non-keyframes on demuxer level when supported if set to 1.
-Default is 0.
-.IP "\fBanalyzeduration\fR \fIinteger\fR \fB(\fR\fIinput\fR\fB)\fR" 4
-.IX Item "analyzeduration integer (input)"
-Specify how many microseconds are analyzed to probe the input. A
-higher value will allow to detect more accurate information, but will
-increase latency. It defaults to 5,000,000 microseconds = 5 seconds.
-.IP "\fBcryptokey\fR \fIhexadecimal string\fR \fB(\fR\fIinput\fR\fB)\fR" 4
-.IX Item "cryptokey hexadecimal string (input)"
-Set decryption key.
-.IP "\fBindexmem\fR \fIinteger\fR \fB(\fR\fIinput\fR\fB)\fR" 4
-.IX Item "indexmem integer (input)"
-Set max memory used for timestamp index (per stream).
-.IP "\fBrtbufsize\fR \fIinteger\fR \fB(\fR\fIinput\fR\fB)\fR" 4
-.IX Item "rtbufsize integer (input)"
-Set max memory used for buffering real-time frames.
-.IP "\fBfdebug\fR \fIflags\fR \fB(\fR\fIinput/output\fR\fB)\fR" 4
-.IX Item "fdebug flags (input/output)"
-Print specific debug info.
-.Sp
-Possible values:
-.RS 4
-.IP "\fBts\fR" 4
-.IX Item "ts"
-.RE
-.RS 4
-.RE
-.PD 0
-.IP "\fBmax_delay\fR \fIinteger\fR \fB(\fR\fIinput/output\fR\fB)\fR" 4
-.IX Item "max_delay integer (input/output)"
-.PD
-Set maximum muxing or demuxing delay in microseconds.
-.IP "\fBfpsprobesize\fR \fIinteger\fR \fB(\fR\fIinput\fR\fB)\fR" 4
-.IX Item "fpsprobesize integer (input)"
-Set number of frames used to probe fps.
-.IP "\fBaudio_preload\fR \fIinteger\fR \fB(\fR\fIoutput\fR\fB)\fR" 4
-.IX Item "audio_preload integer (output)"
-Set microseconds by which audio packets should be interleaved earlier.
-.IP "\fBchunk_duration\fR \fIinteger\fR \fB(\fR\fIoutput\fR\fB)\fR" 4
-.IX Item "chunk_duration integer (output)"
-Set microseconds for each chunk.
-.IP "\fBchunk_size\fR \fIinteger\fR \fB(\fR\fIoutput\fR\fB)\fR" 4
-.IX Item "chunk_size integer (output)"
-Set size in bytes for each chunk.
-.IP "\fBerr_detect, f_err_detect\fR \fIflags\fR \fB(\fR\fIinput\fR\fB)\fR" 4
-.IX Item "err_detect, f_err_detect flags (input)"
-Set error detection flags. \f(CW\*(C`f_err_detect\*(C'\fR is deprecated and
-should be used only via the \fBffmpeg\fR tool.
-.Sp
-Possible values:
-.RS 4
-.IP "\fBcrccheck\fR" 4
-.IX Item "crccheck"
-Verify embedded CRCs.
-.IP "\fBbitstream\fR" 4
-.IX Item "bitstream"
-Detect bitstream specification deviations.
-.IP "\fBbuffer\fR" 4
-.IX Item "buffer"
-Detect improper bitstream length.
-.IP "\fBexplode\fR" 4
-.IX Item "explode"
-Abort decoding on minor error detection.
-.IP "\fBcareful\fR" 4
-.IX Item "careful"
-Consider things that violate the spec and have not been seen in the
-wild as errors.
-.IP "\fBcompliant\fR" 4
-.IX Item "compliant"
-Consider all spec non compliancies as errors.
-.IP "\fBaggressive\fR" 4
-.IX Item "aggressive"
-Consider things that a sane encoder should not do as an error.
-.RE
-.RS 4
-.RE
-.IP "\fBuse_wallclock_as_timestamps\fR \fIinteger\fR \fB(\fR\fIinput\fR\fB)\fR" 4
-.IX Item "use_wallclock_as_timestamps integer (input)"
-Use wallclock as timestamps.
-.IP "\fBavoid_negative_ts\fR \fIinteger\fR \fB(\fR\fIoutput\fR\fB)\fR" 4
-.IX Item "avoid_negative_ts integer (output)"
-Shift timestamps to make them non\-negative. A value of 1 enables shifting,
-a value of 0 disables it, the default value of \-1 enables shifting
-when required by the target format.
-.Sp
-When shifting is enabled, all output timestamps are shifted by the
-same amount. Audio, video, and subtitles desynching and relative
-timestamp differences are preserved compared to how they would have
-been without shifting.
-.Sp
-Also note that this affects only leading negative timestamps, and not
-non-monotonic negative timestamps.
-.IP "\fBskip_initial_bytes\fR \fIinteger\fR \fB(\fR\fIinput\fR\fB)\fR" 4
-.IX Item "skip_initial_bytes integer (input)"
-Set number of bytes to skip before reading header and frames if set to 1.
-Default is 0.
-.IP "\fBcorrect_ts_overflow\fR \fIinteger\fR \fB(\fR\fIinput\fR\fB)\fR" 4
-.IX Item "correct_ts_overflow integer (input)"
-Correct single timestamp overflows if set to 1. Default is 1.
-.IP "\fBflush_packets\fR \fIinteger\fR \fB(\fR\fIoutput\fR\fB)\fR" 4
-.IX Item "flush_packets integer (output)"
-Flush the underlying I/O stream after each packet. Default 1 enables it, and
-has the effect of reducing the latency; 0 disables it and may slightly
-increase performance in some cases.
-.Sh "Format stream specifiers"
-.IX Subsection "Format stream specifiers"
-Format stream specifiers allow selection of one or more streams that
-match specific properties.
-.PP
-Possible forms of stream specifiers are:
-.IP "\fIstream_index\fR" 4
-.IX Item "stream_index"
-Matches the stream with this index.
-.IP "\fIstream_type\fR\fB[:\fR\fIstream_index\fR\fB]\fR" 4
-.IX Item "stream_type[:stream_index]"
-\&\fIstream_type\fR is one of following: 'v' for video, 'a' for audio,
-\&'s' for subtitle, 'd' for data, and 't' for attachments. If
-\&\fIstream_index\fR is given, then it matches the stream number
-\&\fIstream_index\fR of this type. Otherwise, it matches all streams of
-this type.
-.IP "\fBp:\fR\fIprogram_id\fR\fB[:\fR\fIstream_index\fR\fB]\fR" 4
-.IX Item "p:program_id[:stream_index]"
-If \fIstream_index\fR is given, then it matches the stream with number
-\&\fIstream_index\fR in the program with the id
-\&\fIprogram_id\fR. Otherwise, it matches all streams in the program.
-.IP "\fB#\fR\fIstream_id\fR" 4
-.IX Item "#stream_id"
-Matches the stream by a format-specific \s-1ID\s0.
-.PP
-The exact semantics of stream specifiers is defined by the
-\&\f(CW\*(C`avformat_match_stream_specifier()\*(C'\fR function declared in the
-\&\fIlibavformat/avformat.h\fR header.
-.SH "DEMUXERS"
-.IX Header "DEMUXERS"
-Demuxers are configured elements in FFmpeg that can read the
-multimedia streams from a particular type of file.
-.PP
-When you configure your FFmpeg build, all the supported demuxers
-are enabled by default. You can list all available ones using the
-configure option \f(CW\*(C`\-\-list\-demuxers\*(C'\fR.
-.PP
-You can disable all the demuxers using the configure option
-\&\f(CW\*(C`\-\-disable\-demuxers\*(C'\fR, and selectively enable a single demuxer with
-the option \f(CW\*(C`\-\-enable\-demuxer=\f(CI\s-1DEMUXER\s0\f(CW\*(C'\fR, or disable it
-with the option \f(CW\*(C`\-\-disable\-demuxer=\f(CI\s-1DEMUXER\s0\f(CW\*(C'\fR.
-.PP
-The option \f(CW\*(C`\-formats\*(C'\fR of the ff* tools will display the list of
-enabled demuxers.
-.PP
-The description of some of the currently available demuxers follows.
-.Sh "applehttp"
-.IX Subsection "applehttp"
-Apple \s-1HTTP\s0 Live Streaming demuxer.
-.PP
-This demuxer presents all AVStreams from all variant streams.
-The id field is set to the bitrate variant index number. By setting
-the discard flags on AVStreams (by pressing 'a' or 'v' in ffplay),
-the caller can decide which variant streams to actually receive.
-The total bitrate of the variant that the stream belongs to is
-available in a metadata key named \*(L"variant_bitrate\*(R".
-.Sh "asf"
-.IX Subsection "asf"
-Advanced Systems Format demuxer.
-.PP
-This demuxer is used to demux \s-1ASF\s0 files and \s-1MMS\s0 network streams.
-.IP "\fB\-no_resync_search\fR \fIbool\fR" 4
-.IX Item "-no_resync_search bool"
-Do not try to resynchronize by looking for a certain optional start code.
-.Sh "concat"
-.IX Subsection "concat"
-Virtual concatenation script demuxer.
-.PP
-This demuxer reads a list of files and other directives from a text file and
-demuxes them one after the other, as if all their packet had been muxed
-together.
-.PP
-The timestamps in the files are adjusted so that the first file starts at 0
-and each next file starts where the previous one finishes. Note that it is
-done globally and may cause gaps if all streams do not have exactly the same
-length.
-.PP
-All files must have the same streams (same codecs, same time base, etc.).
-.PP
-The duration of each file is used to adjust the timestamps of the next file:
-if the duration is incorrect (because it was computed using the bit-rate or
-because the file is truncated, for example), it can cause artifacts. The
-\&\f(CW\*(C`duration\*(C'\fR directive can be used to override the duration stored in
-each file.
-.PP
-\fISyntax\fR
-.IX Subsection "Syntax"
-.PP
-The script is a text file in extended\-ASCII, with one directive per line.
-Empty lines, leading spaces and lines starting with '#' are ignored. The
-following directive is recognized:
-.ie n .IP "\fB\fB""file \f(BIpath\f(CB""\fB\fR" 4
-.el .IP "\fB\f(CBfile \f(CBpath\f(CB\fB\fR" 4
-.IX Item "file path"
-Path to a file to read; special characters and spaces must be escaped with
-backslash or single quotes.
-.Sp
-All subsequent directives apply to that file.
-.ie n .IP "\fB\fB""ffconcat version 1.0""\fB\fR" 4
-.el .IP "\fB\f(CBffconcat version 1.0\fB\fR" 4
-.IX Item "ffconcat version 1.0"
-Identify the script type and version. It also sets the \fBsafe\fR option
-to 1 if it was to its default \-1.
-.Sp
-To make FFmpeg recognize the format automatically, this directive must
-appears exactly as is (no extra space or byte\-order\-mark) on the very first
-line of the script.
-.ie n .IP "\fB\fB""duration \f(BIdur\f(CB""\fB\fR" 4
-.el .IP "\fB\f(CBduration \f(CBdur\f(CB\fB\fR" 4
-.IX Item "duration dur"
-Duration of the file. This information can be specified from the file;
-specifying it here may be more efficient or help if the information from the
-file is not available or accurate.
-.Sp
-If the duration is set for all files, then it is possible to seek in the
-whole concatenated video.
-.PP
-\fIOptions\fR
-.IX Subsection "Options"
-.PP
-This demuxer accepts the following option:
-.IP "\fBsafe\fR" 4
-.IX Item "safe"
-If set to 1, reject unsafe file paths. A file path is considered safe if it
-does not contain a protocol specification and is relative and all components
-only contain characters from the portable character set (letters, digits,
-period, underscore and hyphen) and have no period at the beginning of a
-component.
-.Sp
-If set to 0, any file name is accepted.
-.Sp
-The default is \-1, it is equivalent to 1 if the format was automatically
-probed and 0 otherwise.
-.Sh "flv"
-.IX Subsection "flv"
-Adobe Flash Video Format demuxer.
-.PP
-This demuxer is used to demux \s-1FLV\s0 files and \s-1RTMP\s0 network streams.
-.IP "\fB\-flv_metadata\fR \fIbool\fR" 4
-.IX Item "-flv_metadata bool"
-Allocate the streams according to the onMetaData array content.
-.Sh "libgme"
-.IX Subsection "libgme"
-The Game Music Emu library is a collection of video game music file emulators.
-.PP
-See <\fBhttp://code.google.com/p/game\-music\-emu/\fR> for more information.
-.PP
-Some files have multiple tracks. The demuxer will pick the first track by
-default. The \fBtrack_index\fR option can be used to select a different
-track. Track indexes start at 0. The demuxer exports the number of tracks as
-\&\fItracks\fR meta data entry.
-.PP
-For very large files, the \fBmax_size\fR option may have to be adjusted.
-.Sh "libquvi"
-.IX Subsection "libquvi"
-Play media from Internet services using the quvi project.
-.PP
-The demuxer accepts a \fBformat\fR option to request a specific quality. It
-is by default set to \fIbest\fR.
-.PP
-See <\fBhttp://quvi.sourceforge.net/\fR> for more information.
-.PP
-FFmpeg needs to be built with \f(CW\*(C`\-\-enable\-libquvi\*(C'\fR for this demuxer to be
-enabled.
-.Sh "image2"
-.IX Subsection "image2"
-Image file demuxer.
-.PP
-This demuxer reads from a list of image files specified by a pattern.
-The syntax and meaning of the pattern is specified by the
-option \fIpattern_type\fR.
-.PP
-The pattern may contain a suffix which is used to automatically
-determine the format of the images contained in the files.
-.PP
-The size, the pixel format, and the format of each image must be the
-same for all the files in the sequence.
-.PP
-This demuxer accepts the following options:
-.IP "\fBframerate\fR" 4
-.IX Item "framerate"
-Set the frame rate for the video stream. It defaults to 25.
-.IP "\fBloop\fR" 4
-.IX Item "loop"
-If set to 1, loop over the input. Default value is 0.
-.IP "\fBpattern_type\fR" 4
-.IX Item "pattern_type"
-Select the pattern type used to interpret the provided filename.
-.Sp
-\&\fIpattern_type\fR accepts one of the following values.
-.RS 4
-.IP "\fBsequence\fR" 4
-.IX Item "sequence"
-Select a sequence pattern type, used to specify a sequence of files
-indexed by sequential numbers.
-.Sp
-A sequence pattern may contain the string \*(L"%d\*(R" or "%0\fIN\fRd\*(L", which
-specifies the position of the characters representing a sequential
-number in each filename matched by the pattern. If the form
-\&\*(R"%d0\fIN\fRd" is used, the string representing the number in each
-filename is 0\-padded and \fIN\fR is the total number of 0\-padded
-digits representing the number. The literal character '%' can be
-specified in the pattern with the string \*(L"%%\*(R".
-.Sp
-If the sequence pattern contains \*(L"%d\*(R" or "%0\fIN\fRd", the first filename of
-the file list specified by the pattern must contain a number
-inclusively contained between \fIstart_number\fR and
-\&\fIstart_number\fR+\fIstart_number_range\fR\-1, and all the following
-numbers must be sequential.
-.Sp
-For example the pattern \*(L"img\-%03d.bmp\*(R" will match a sequence of
-filenames of the form \fIimg\-001.bmp\fR, \fIimg\-002.bmp\fR, ...,
-\&\fIimg\-010.bmp\fR, etc.; the pattern \*(L"i%%m%%g\-%d.jpg\*(R" will match a
-sequence of filenames of the form \fIi%m%g\-1.jpg\fR,
-\&\fIi%m%g\-2.jpg\fR, ..., \fIi%m%g\-10.jpg\fR, etc.
-.Sp
-Note that the pattern must not necessarily contain \*(L"%d\*(R" or
-"%0\fIN\fRd", for example to convert a single image file
-\&\fIimg.jpeg\fR you can employ the command:
-.Sp
-.Vb 1
-\&        ffmpeg -i img.jpeg img.png
-.Ve
-.IP "\fBglob\fR" 4
-.IX Item "glob"
-Select a glob wildcard pattern type.
-.Sp
-The pattern is interpreted like a \f(CW\*(C`glob()\*(C'\fR pattern. This is only
-selectable if libavformat was compiled with globbing support.
-.IP "\fBglob_sequence\fR \fI(deprecated, will be removed)\fR" 4
-.IX Item "glob_sequence (deprecated, will be removed)"
-Select a mixed glob wildcard/sequence pattern.
-.Sp
-If your version of libavformat was compiled with globbing support, and
-the provided pattern contains at least one glob meta character among
-\&\f(CW\*(C`%*?[]{}\*(C'\fR that is preceded by an unescaped \*(L"%\*(R", the pattern is
-interpreted like a \f(CW\*(C`glob()\*(C'\fR pattern, otherwise it is interpreted
-like a sequence pattern.
-.Sp
-All glob special characters \f(CW\*(C`%*?[]{}\*(C'\fR must be prefixed
-with \*(L"%\*(R". To escape a literal \*(L"%\*(R" you shall use \*(L"%%\*(R".
-.Sp
-For example the pattern \f(CW\*(C`foo\-%*.jpeg\*(C'\fR will match all the
-filenames prefixed by \*(L"foo\-\*(R" and terminating with \*(L".jpeg\*(R", and
-\&\f(CW\*(C`foo\-%?%?%?.jpeg\*(C'\fR will match all the filenames prefixed with
-\&\*(L"foo\-\*(R", followed by a sequence of three characters, and terminating
-with \*(L".jpeg\*(R".
-.Sp
-This pattern type is deprecated in favor of \fIglob\fR and
-\&\fIsequence\fR.
-.RE
-.RS 4
-.Sp
-Default value is \fIglob_sequence\fR.
-.RE
-.IP "\fBpixel_format\fR" 4
-.IX Item "pixel_format"
-Set the pixel format of the images to read. If not specified the pixel
-format is guessed from the first image file in the sequence.
-.IP "\fBstart_number\fR" 4
-.IX Item "start_number"
-Set the index of the file matched by the image file pattern to start
-to read from. Default value is 0.
-.IP "\fBstart_number_range\fR" 4
-.IX Item "start_number_range"
-Set the index interval range to check when looking for the first image
-file in the sequence, starting from \fIstart_number\fR. Default value
-is 5.
-.IP "\fBts_from_file\fR" 4
-.IX Item "ts_from_file"
-If set to 1, will set frame timestamp to modification time of image file. Note
-that monotonity of timestamps is not provided: images go in the same order as
-without this option. Default value is 0.
-.IP "\fBvideo_size\fR" 4
-.IX Item "video_size"
-Set the video size of the images to read. If not specified the video
-size is guessed from the first image file in the sequence.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.IP "\(bu" 4
-Use \fBffmpeg\fR for creating a video from the images in the file
-sequence \fIimg\-001.jpeg\fR, \fIimg\-002.jpeg\fR, ..., assuming an
-input frame rate of 10 frames per second:
-.Sp
-.Vb 1
-\&        ffmpeg -framerate 10 -i 'img-%03d.jpeg' out.mkv
-.Ve
-.IP "\(bu" 4
-As above, but start by reading from a file with index 100 in the sequence:
-.Sp
-.Vb 1
-\&        ffmpeg -framerate 10 -start_number 100 -i 'img-%03d.jpeg' out.mkv
-.Ve
-.IP "\(bu" 4
-Read images matching the \*(L"*.png\*(R" glob pattern , that is all the files
-terminating with the \*(L".png\*(R" suffix:
-.Sp
-.Vb 1
-\&        ffmpeg -framerate 10 -pattern_type glob -i "*.png" out.mkv
-.Ve
-.Sh "mpegts"
-.IX Subsection "mpegts"
-\&\s-1MPEG\-2\s0 transport stream demuxer.
-.IP "\fBfix_teletext_pts\fR" 4
-.IX Item "fix_teletext_pts"
-Overrides teletext packet \s-1PTS\s0 and \s-1DTS\s0 values with the timestamps calculated
-from the \s-1PCR\s0 of the first program which the teletext stream is part of and is
-not discarded. Default value is 1, set this option to 0 if you want your
-teletext packet \s-1PTS\s0 and \s-1DTS\s0 values untouched.
-.Sh "rawvideo"
-.IX Subsection "rawvideo"
-Raw video demuxer.
-.PP
-This demuxer allows to read raw video data. Since there is no header
-specifying the assumed video parameters, the user must specify them
-in order to be able to decode the data correctly.
-.PP
-This demuxer accepts the following options:
-.IP "\fBframerate\fR" 4
-.IX Item "framerate"
-Set input video frame rate. Default value is 25.
-.IP "\fBpixel_format\fR" 4
-.IX Item "pixel_format"
-Set the input video pixel format. Default value is \f(CW\*(C`yuv420p\*(C'\fR.
-.IP "\fBvideo_size\fR" 4
-.IX Item "video_size"
-Set the input video size. This value must be specified explicitly.
-.PP
-For example to read a rawvideo file \fIinput.raw\fR with
-\&\fBffplay\fR, assuming a pixel format of \f(CW\*(C`rgb24\*(C'\fR, a video
-size of \f(CW\*(C`320x240\*(C'\fR, and a frame rate of 10 images per second, use
-the command:
-.PP
-.Vb 1
-\&        ffplay -f rawvideo -pixel_format rgb24 -video_size 320x240 -framerate 10 input.raw
-.Ve
-.Sh "sbg"
-.IX Subsection "sbg"
-SBaGen script demuxer.
-.PP
-This demuxer reads the script language used by SBaGen
-<\fBhttp://uazu.net/sbagen/\fR> to generate binaural beats sessions. A \s-1SBG\s0
-script looks like that:
-.PP
-.Vb 9
-\&        -SE
-\&        a: 300-2.5/3 440+4.5/0
-\&        b: 300-2.5/0 440+4.5/3
-\&        off: -
-\&        NOW      == a
-\&        +0:07:00 == b
-\&        +0:14:00 == a
-\&        +0:21:00 == b
-\&        +0:30:00    off
-.Ve
-.PP
-A \s-1SBG\s0 script can mix absolute and relative timestamps. If the script uses
-either only absolute timestamps (including the script start time) or only
-relative ones, then its layout is fixed, and the conversion is
-straightforward. On the other hand, if the script mixes both kind of
-timestamps, then the \fI\s-1NOW\s0\fR reference for relative timestamps will be
-taken from the current time of day at the time the script is read, and the
-script layout will be frozen according to that reference. That means that if
-the script is directly played, the actual times will match the absolute
-timestamps up to the sound controller's clock accuracy, but if the user
-somehow pauses the playback or seeks, all times will be shifted accordingly.
-.Sh "tedcaptions"
-.IX Subsection "tedcaptions"
-\&\s-1JSON\s0 captions used for <\fBhttp://www.ted.com/\fR>.
-.PP
-\&\s-1TED\s0 does not provide links to the captions, but they can be guessed from the
-page. The file \fItools/bookmarklets.html\fR from the FFmpeg source tree
-contains a bookmarklet to expose them.
-.PP
-This demuxer accepts the following option:
-.IP "\fBstart_time\fR" 4
-.IX Item "start_time"
-Set the start time of the \s-1TED\s0 talk, in milliseconds. The default is 15000
-(15s). It is used to sync the captions with the downloadable videos, because
-they include a 15s intro.
-.PP
-Example: convert the captions to a format most players understand:
-.PP
-.Vb 1
-\&        ffmpeg -i http://www.ted.com/talks/subtitles/id/1/lang/en talk1-en.srt
-.Ve
-.SH "MUXERS"
-.IX Header "MUXERS"
-Muxers are configured elements in FFmpeg which allow writing
-multimedia streams to a particular type of file.
-.PP
-When you configure your FFmpeg build, all the supported muxers
-are enabled by default. You can list all available muxers using the
-configure option \f(CW\*(C`\-\-list\-muxers\*(C'\fR.
-.PP
-You can disable all the muxers with the configure option
-\&\f(CW\*(C`\-\-disable\-muxers\*(C'\fR and selectively enable / disable single muxers
-with the options \f(CW\*(C`\-\-enable\-muxer=\f(CI\s-1MUXER\s0\f(CW\*(C'\fR /
-\&\f(CW\*(C`\-\-disable\-muxer=\f(CI\s-1MUXER\s0\f(CW\*(C'\fR.
-.PP
-The option \f(CW\*(C`\-formats\*(C'\fR of the ff* tools will display the list of
-enabled muxers.
-.PP
-A description of some of the currently available muxers follows.
-.Sh "aiff"
-.IX Subsection "aiff"
-Audio Interchange File Format muxer.
-.PP
-It accepts the following options:
-.IP "\fBwrite_id3v2\fR" 4
-.IX Item "write_id3v2"
-Enable ID3v2 tags writing when set to 1. Default is 0 (disabled).
-.IP "\fBid3v2_version\fR" 4
-.IX Item "id3v2_version"
-Select ID3v2 version to write. Currently only version 3 and 4 (aka.
-ID3v2.3 and ID3v2.4) are supported. The default is version 4.
-.Sh "crc"
-.IX Subsection "crc"
-\&\s-1CRC\s0 (Cyclic Redundancy Check) testing format.
-.PP
-This muxer computes and prints the Adler\-32 \s-1CRC\s0 of all the input audio
-and video frames. By default audio frames are converted to signed
-16\-bit raw audio and video frames to raw video before computing the
-\&\s-1CRC\s0.
-.PP
-The output of the muxer consists of a single line of the form:
-CRC=0x\fI\s-1CRC\s0\fR, where \fI\s-1CRC\s0\fR is a hexadecimal number 0\-padded to
-8 digits containing the \s-1CRC\s0 for all the decoded input frames.
-.PP
-For example to compute the \s-1CRC\s0 of the input, and store it in the file
-\&\fIout.crc\fR:
-.PP
-.Vb 1
-\&        ffmpeg -i INPUT -f crc out.crc
-.Ve
-.PP
-You can print the \s-1CRC\s0 to stdout with the command:
-.PP
-.Vb 1
-\&        ffmpeg -i INPUT -f crc -
-.Ve
-.PP
-You can select the output format of each frame with \fBffmpeg\fR by
-specifying the audio and video codec and format. For example to
-compute the \s-1CRC\s0 of the input audio converted to \s-1PCM\s0 unsigned 8\-bit
-and the input video converted to \s-1MPEG\-2\s0 video, use the command:
-.PP
-.Vb 1
-\&        ffmpeg -i INPUT -c:a pcm_u8 -c:v mpeg2video -f crc -
-.Ve
-.PP
-See also the framecrc muxer.
-.Sh "framecrc"
-.IX Subsection "framecrc"
-Per-packet \s-1CRC\s0 (Cyclic Redundancy Check) testing format.
-.PP
-This muxer computes and prints the Adler\-32 \s-1CRC\s0 for each audio
-and video packet. By default audio frames are converted to signed
-16\-bit raw audio and video frames to raw video before computing the
-\&\s-1CRC\s0.
-.PP
-The output of the muxer consists of a line for each audio and video
-packet of the form:
-.PP
-.Vb 1
-\&        <stream_index>, <packet_dts>, <packet_pts>, <packet_duration>, <packet_size>, 0x<CRC>
-.Ve
-.PP
-\&\fI\s-1CRC\s0\fR is a hexadecimal number 0\-padded to 8 digits containing the
-\&\s-1CRC\s0 of the packet.
-.PP
-For example to compute the \s-1CRC\s0 of the audio and video frames in
-\&\fI\s-1INPUT\s0\fR, converted to raw audio and video packets, and store it
-in the file \fIout.crc\fR:
-.PP
-.Vb 1
-\&        ffmpeg -i INPUT -f framecrc out.crc
-.Ve
-.PP
-To print the information to stdout, use the command:
-.PP
-.Vb 1
-\&        ffmpeg -i INPUT -f framecrc -
-.Ve
-.PP
-With \fBffmpeg\fR, you can select the output format to which the
-audio and video frames are encoded before computing the \s-1CRC\s0 for each
-packet by specifying the audio and video codec. For example, to
-compute the \s-1CRC\s0 of each decoded input audio frame converted to \s-1PCM\s0
-unsigned 8\-bit and of each decoded input video frame converted to
-\&\s-1MPEG\-2\s0 video, use the command:
-.PP
-.Vb 1
-\&        ffmpeg -i INPUT -c:a pcm_u8 -c:v mpeg2video -f framecrc -
-.Ve
-.PP
-See also the crc muxer.
-.Sh "framemd5"
-.IX Subsection "framemd5"
-Per-packet \s-1MD5\s0 testing format.
-.PP
-This muxer computes and prints the \s-1MD5\s0 hash for each audio
-and video packet. By default audio frames are converted to signed
-16\-bit raw audio and video frames to raw video before computing the
-hash.
-.PP
-The output of the muxer consists of a line for each audio and video
-packet of the form:
-.PP
-.Vb 1
-\&        <stream_index>, <packet_dts>, <packet_pts>, <packet_duration>, <packet_size>, <MD5>
-.Ve
-.PP
-\&\fI\s-1MD5\s0\fR is a hexadecimal number representing the computed \s-1MD5\s0 hash
-for the packet.
-.PP
-For example to compute the \s-1MD5\s0 of the audio and video frames in
-\&\fI\s-1INPUT\s0\fR, converted to raw audio and video packets, and store it
-in the file \fIout.md5\fR:
-.PP
-.Vb 1
-\&        ffmpeg -i INPUT -f framemd5 out.md5
-.Ve
-.PP
-To print the information to stdout, use the command:
-.PP
-.Vb 1
-\&        ffmpeg -i INPUT -f framemd5 -
-.Ve
-.PP
-See also the md5 muxer.
-.Sh "hls"
-.IX Subsection "hls"
-Apple \s-1HTTP\s0 Live Streaming muxer that segments MPEG-TS according to
-the \s-1HTTP\s0 Live Streaming specification.
-.PP
-It creates a playlist file and numbered segment files. The output
-filename specifies the playlist filename; the segment filenames
-receive the same basename as the playlist, a sequential number and
-a .ts extension.
-.PP
-.Vb 1
-\&        ffmpeg -i in.nut out.m3u8
-.Ve
-.IP "\fB\-hls_time\fR \fIseconds\fR" 4
-.IX Item "-hls_time seconds"
-Set the segment length in seconds.
-.IP "\fB\-hls_list_size\fR \fIsize\fR" 4
-.IX Item "-hls_list_size size"
-Set the maximum number of playlist entries.
-.IP "\fB\-hls_wrap\fR \fIwrap\fR" 4
-.IX Item "-hls_wrap wrap"
-Set the number after which index wraps.
-.IP "\fB\-start_number\fR \fInumber\fR" 4
-.IX Item "-start_number number"
-Start the sequence from \fInumber\fR.
-.Sh "ico"
-.IX Subsection "ico"
-\&\s-1ICO\s0 file muxer.
-.PP
-Microsoft's icon file format (\s-1ICO\s0) has some strict limitations that should be noted:
-.IP "\(bu" 4
-Size cannot exceed 256 pixels in any dimension
-.IP "\(bu" 4
-Only \s-1BMP\s0 and \s-1PNG\s0 images can be stored
-.IP "\(bu" 4
-If a \s-1BMP\s0 image is used, it must be one of the following pixel formats:
-.Sp
-.Vb 7
-\&        BMP Bit Depth      FFmpeg Pixel Format
-\&        1bit               pal8
-\&        4bit               pal8
-\&        8bit               pal8
-\&        16bit              rgb555le
-\&        24bit              bgr24
-\&        32bit              bgra
-.Ve
-.IP "\(bu" 4
-If a \s-1BMP\s0 image is used, it must use the \s-1BITMAPINFOHEADER\s0 \s-1DIB\s0 header
-.IP "\(bu" 4
-If a \s-1PNG\s0 image is used, it must use the rgba pixel format
-.Sh "image2"
-.IX Subsection "image2"
-Image file muxer.
-.PP
-The image file muxer writes video frames to image files.
-.PP
-The output filenames are specified by a pattern, which can be used to
-produce sequentially numbered series of files.
-The pattern may contain the string \*(L"%d\*(R" or "%0\fIN\fRd\*(L", this string
-specifies the position of the characters representing a numbering in
-the filenames. If the form \*(R"%0\fIN\fRd" is used, the string
-representing the number in each filename is 0\-padded to \fIN\fR
-digits. The literal character '%' can be specified in the pattern with
-the string \*(L"%%\*(R".
-.PP
-If the pattern contains \*(L"%d\*(R" or "%0\fIN\fRd", the first filename of
-the file list specified will contain the number 1, all the following
-numbers will be sequential.
-.PP
-The pattern may contain a suffix which is used to automatically
-determine the format of the image files to write.
-.PP
-For example the pattern \*(L"img\-%03d.bmp\*(R" will specify a sequence of
-filenames of the form \fIimg\-001.bmp\fR, \fIimg\-002.bmp\fR, ...,
-\&\fIimg\-010.bmp\fR, etc.
-The pattern \*(L"img%%\-%d.jpg\*(R" will specify a sequence of filenames of the
-form \fIimg%\-1.jpg\fR, \fIimg%\-2.jpg\fR, ..., \fIimg%\-10.jpg\fR,
-etc.
-.PP
-The following example shows how to use \fBffmpeg\fR for creating a
-sequence of files \fIimg\-001.jpeg\fR, \fIimg\-002.jpeg\fR, ...,
-taking one image every second from the input video:
-.PP
-.Vb 1
-\&        ffmpeg -i in.avi -vsync 1 -r 1 -f image2 'img-%03d.jpeg'
-.Ve
-.PP
-Note that with \fBffmpeg\fR, if the format is not specified with the
-\&\f(CW\*(C`\-f\*(C'\fR option and the output filename specifies an image file
-format, the image2 muxer is automatically selected, so the previous
-command can be written as:
-.PP
-.Vb 1
-\&        ffmpeg -i in.avi -vsync 1 -r 1 'img-%03d.jpeg'
-.Ve
-.PP
-Note also that the pattern must not necessarily contain \*(L"%d\*(R" or
-"%0\fIN\fRd", for example to create a single image file
-\&\fIimg.jpeg\fR from the input video you can employ the command:
-.PP
-.Vb 1
-\&        ffmpeg -i in.avi -f image2 -frames:v 1 img.jpeg
-.Ve
-.IP "\fBstart_number\fR \fInumber\fR" 4
-.IX Item "start_number number"
-Start the sequence from \fInumber\fR. Default value is 1. Must be a
-non-negative number.
-.IP "\fB\-update\fR \fInumber\fR" 4
-.IX Item "-update number"
-If \fInumber\fR is nonzero, the filename will always be interpreted as just a
-filename, not a pattern, and this file will be continuously overwritten with new
-images.
-.PP
-The image muxer supports the .Y.U.V image file format. This format is
-special in that that each image frame consists of three files, for
-each of the \s-1YUV420P\s0 components. To read or write this image file format,
-specify the name of the '.Y' file. The muxer will automatically open the
-\&'.U' and '.V' files as required.
-.Sh "matroska"
-.IX Subsection "matroska"
-Matroska container muxer.
-.PP
-This muxer implements the matroska and webm container specs.
-.PP
-The recognized metadata settings in this muxer are:
-.IP "\fBtitle=\fR\fItitle name\fR" 4
-.IX Item "title=title name"
-Name provided to a single track
-.IP "\fBlanguage=\fR\fIlanguage name\fR" 4
-.IX Item "language=language name"
-Specifies the language of the track in the Matroska languages form
-.IP "\fBstereo_mode=\fR\fImode\fR" 4
-.IX Item "stereo_mode=mode"
-Stereo 3D video layout of two views in a single video track
-.RS 4
-.IP "\fBmono\fR" 4
-.IX Item "mono"
-video is not stereo
-.IP "\fBleft_right\fR" 4
-.IX Item "left_right"
-Both views are arranged side by side, Left-eye view is on the left
-.IP "\fBbottom_top\fR" 4
-.IX Item "bottom_top"
-Both views are arranged in top-bottom orientation, Left-eye view is at bottom
-.IP "\fBtop_bottom\fR" 4
-.IX Item "top_bottom"
-Both views are arranged in top-bottom orientation, Left-eye view is on top
-.IP "\fBcheckerboard_rl\fR" 4
-.IX Item "checkerboard_rl"
-Each view is arranged in a checkerboard interleaved pattern, Left-eye view being first
-.IP "\fBcheckerboard_lr\fR" 4
-.IX Item "checkerboard_lr"
-Each view is arranged in a checkerboard interleaved pattern, Right-eye view being first
-.IP "\fBrow_interleaved_rl\fR" 4
-.IX Item "row_interleaved_rl"
-Each view is constituted by a row based interleaving, Right-eye view is first row
-.IP "\fBrow_interleaved_lr\fR" 4
-.IX Item "row_interleaved_lr"
-Each view is constituted by a row based interleaving, Left-eye view is first row
-.IP "\fBcol_interleaved_rl\fR" 4
-.IX Item "col_interleaved_rl"
-Both views are arranged in a column based interleaving manner, Right-eye view is first column
-.IP "\fBcol_interleaved_lr\fR" 4
-.IX Item "col_interleaved_lr"
-Both views are arranged in a column based interleaving manner, Left-eye view is first column
-.IP "\fBanaglyph_cyan_red\fR" 4
-.IX Item "anaglyph_cyan_red"
-All frames are in anaglyph format viewable through red-cyan filters
-.IP "\fBright_left\fR" 4
-.IX Item "right_left"
-Both views are arranged side by side, Right-eye view is on the left
-.IP "\fBanaglyph_green_magenta\fR" 4
-.IX Item "anaglyph_green_magenta"
-All frames are in anaglyph format viewable through green-magenta filters
-.IP "\fBblock_lr\fR" 4
-.IX Item "block_lr"
-Both eyes laced in one Block, Left-eye view is first
-.IP "\fBblock_rl\fR" 4
-.IX Item "block_rl"
-Both eyes laced in one Block, Right-eye view is first
-.RE
-.RS 4
-.RE
-.PP
-For example a 3D WebM clip can be created using the following command line:
-.PP
-.Vb 1
-\&        ffmpeg -i sample_left_right_clip.mpg -an -c:v libvpx -metadata stereo_mode=left_right -y stereo_clip.webm
-.Ve
-.PP
-This muxer supports the following options:
-.IP "\fBreserve_index_space\fR" 4
-.IX Item "reserve_index_space"
-By default, this muxer writes the index for seeking (called cues in Matroska
-terms) at the end of the file, because it cannot know in advance how much space
-to leave for the index at the beginning of the file. However for some use cases
-\&\*(-- e.g.  streaming where seeking is possible but slow \*(-- it is useful to put the
-index at the beginning of the file.
-.Sp
-If this option is set to a non-zero value, the muxer will reserve a given amount
-of space in the file header and then try to write the cues there when the muxing
-finishes. If the available space does not suffice, muxing will fail. A safe size
-for most use cases should be about 50kB per hour of video.
-.Sp
-Note that cues are only written if the output is seekable and this option will
-have no effect if it is not.
-.Sh "md5"
-.IX Subsection "md5"
-\&\s-1MD5\s0 testing format.
-.PP
-This muxer computes and prints the \s-1MD5\s0 hash of all the input audio
-and video frames. By default audio frames are converted to signed
-16\-bit raw audio and video frames to raw video before computing the
-hash.
-.PP
-The output of the muxer consists of a single line of the form:
-MD5=\fI\s-1MD5\s0\fR, where \fI\s-1MD5\s0\fR is a hexadecimal number representing
-the computed \s-1MD5\s0 hash.
-.PP
-For example to compute the \s-1MD5\s0 hash of the input converted to raw
-audio and video, and store it in the file \fIout.md5\fR:
-.PP
-.Vb 1
-\&        ffmpeg -i INPUT -f md5 out.md5
-.Ve
-.PP
-You can print the \s-1MD5\s0 to stdout with the command:
-.PP
-.Vb 1
-\&        ffmpeg -i INPUT -f md5 -
-.Ve
-.PP
-See also the framemd5 muxer.
-.Sh "\s-1MOV/MP4/ISMV\s0"
-.IX Subsection "MOV/MP4/ISMV"
-The mov/mp4/ismv muxer supports fragmentation. Normally, a \s-1MOV/MP4\s0
-file has all the metadata about all packets stored in one location
-(written at the end of the file, it can be moved to the start for
-better playback by adding \fIfaststart\fR to the \fImovflags\fR, or
-using the \fBqt-faststart\fR tool). A fragmented
-file consists of a number of fragments, where packets and metadata
-about these packets are stored together. Writing a fragmented
-file has the advantage that the file is decodable even if the
-writing is interrupted (while a normal \s-1MOV/MP4\s0 is undecodable if
-it is not properly finished), and it requires less memory when writing
-very long files (since writing normal \s-1MOV/MP4\s0 files stores info about
-every single packet in memory until the file is closed). The downside
-is that it is less compatible with other applications.
-.PP
-Fragmentation is enabled by setting one of the AVOptions that define
-how to cut the file into fragments:
-.IP "\fB\-moov_size\fR \fIbytes\fR" 4
-.IX Item "-moov_size bytes"
-Reserves space for the moov atom at the beginning of the file instead of placing the
-moov atom at the end. If the space reserved is insufficient, muxing will fail.
-.IP "\fB\-movflags frag_keyframe\fR" 4
-.IX Item "-movflags frag_keyframe"
-Start a new fragment at each video keyframe.
-.IP "\fB\-frag_duration\fR \fIduration\fR" 4
-.IX Item "-frag_duration duration"
-Create fragments that are \fIduration\fR microseconds long.
-.IP "\fB\-frag_size\fR \fIsize\fR" 4
-.IX Item "-frag_size size"
-Create fragments that contain up to \fIsize\fR bytes of payload data.
-.IP "\fB\-movflags frag_custom\fR" 4
-.IX Item "-movflags frag_custom"
-Allow the caller to manually choose when to cut fragments, by
-calling \f(CW\*(C`av_write_frame(ctx, NULL)\*(C'\fR to write a fragment with
-the packets written so far. (This is only useful with other
-applications integrating libavformat, not from \fBffmpeg\fR.)
-.IP "\fB\-min_frag_duration\fR \fIduration\fR" 4
-.IX Item "-min_frag_duration duration"
-Don't create fragments that are shorter than \fIduration\fR microseconds long.
-.PP
-If more than one condition is specified, fragments are cut when
-one of the specified conditions is fulfilled. The exception to this is
-\&\f(CW\*(C`\-min_frag_duration\*(C'\fR, which has to be fulfilled for any of the other
-conditions to apply.
-.PP
-Additionally, the way the output file is written can be adjusted
-through a few other options:
-.IP "\fB\-movflags empty_moov\fR" 4
-.IX Item "-movflags empty_moov"
-Write an initial moov atom directly at the start of the file, without
-describing any samples in it. Generally, an mdat/moov pair is written
-at the start of the file, as a normal \s-1MOV/MP4\s0 file, containing only
-a short portion of the file. With this option set, there is no initial
-mdat atom, and the moov atom only describes the tracks but has
-a zero duration.
-.Sp
-Files written with this option set do not work in QuickTime.
-This option is implicitly set when writing ismv (Smooth Streaming) files.
-.IP "\fB\-movflags separate_moof\fR" 4
-.IX Item "-movflags separate_moof"
-Write a separate moof (movie fragment) atom for each track. Normally,
-packets for all tracks are written in a moof atom (which is slightly
-more efficient), but with this option set, the muxer writes one moof/mdat
-pair for each track, making it easier to separate tracks.
-.Sp
-This option is implicitly set when writing ismv (Smooth Streaming) files.
-.IP "\fB\-movflags faststart\fR" 4
-.IX Item "-movflags faststart"
-Run a second pass moving the index (moov atom) to the beginning of the file.
-This operation can take a while, and will not work in various situations such
-as fragmented output, thus it is not enabled by default.
-.IP "\fB\-movflags rtphint\fR" 4
-.IX Item "-movflags rtphint"
-Add \s-1RTP\s0 hinting tracks to the output file.
-.PP
-Smooth Streaming content can be pushed in real time to a publishing
-point on \s-1IIS\s0 with this muxer. Example:
-.PP
-.Vb 1
-\&        ffmpeg -re <<normal input/transcoding options>> -movflags isml+frag_keyframe -f ismv http://server/publishingpoint.isml/Streams(Encoder1)
-.Ve
-.Sh "mp3"
-.IX Subsection "mp3"
-The \s-1MP3\s0 muxer writes a raw \s-1MP3\s0 stream with an ID3v2 header at the beginning and
-optionally an ID3v1 tag at the end. ID3v2.3 and ID3v2.4 are supported, the
-\&\f(CW\*(C`id3v2_version\*(C'\fR option controls which one is used. The legacy ID3v1 tag is
-not written by default, but may be enabled with the \f(CW\*(C`write_id3v1\*(C'\fR option.
-.PP
-For seekable output the muxer also writes a Xing frame at the beginning, which
-contains the number of frames in the file. It is useful for computing duration
-of \s-1VBR\s0 files.
-.PP
-The muxer supports writing ID3v2 attached pictures (\s-1APIC\s0 frames). The pictures
-are supplied to the muxer in form of a video stream with a single packet. There
-can be any number of those streams, each will correspond to a single \s-1APIC\s0 frame.
-The stream metadata tags \fItitle\fR and \fIcomment\fR map to \s-1APIC\s0
-\&\fIdescription\fR and \fIpicture type\fR respectively. See
-<\fBhttp://id3.org/id3v2.4.0\-frames\fR> for allowed picture types.
-.PP
-Note that the \s-1APIC\s0 frames must be written at the beginning, so the muxer will
-buffer the audio frames until it gets all the pictures. It is therefore advised
-to provide the pictures as soon as possible to avoid excessive buffering.
-.PP
-Examples:
-.PP
-Write an mp3 with an ID3v2.3 header and an ID3v1 footer:
-.PP
-.Vb 1
-\&        ffmpeg -i INPUT -id3v2_version 3 -write_id3v1 1 out.mp3
-.Ve
-.PP
-To attach a picture to an mp3 file select both the audio and the picture stream
-with \f(CW\*(C`map\*(C'\fR:
-.PP
-.Vb 2
-\&        ffmpeg -i input.mp3 -i cover.png -c copy -map 0 -map 1
-\&        -metadata:s:v title="Album cover" -metadata:s:v comment="Cover (Front)" out.mp3
-.Ve
-.Sh "mpegts"
-.IX Subsection "mpegts"
-\&\s-1MPEG\s0 transport stream muxer.
-.PP
-This muxer implements \s-1ISO\s0 13818\-1 and part of \s-1ETSI\s0 \s-1EN\s0 300 468.
-.PP
-The muxer options are:
-.IP "\fB\-mpegts_original_network_id\fR \fInumber\fR" 4
-.IX Item "-mpegts_original_network_id number"
-Set the original_network_id (default 0x0001). This is unique identifier
-of a network in \s-1DVB\s0. Its main use is in the unique identification of a
-service through the path Original_Network_ID, Transport_Stream_ID.
-.IP "\fB\-mpegts_transport_stream_id\fR \fInumber\fR" 4
-.IX Item "-mpegts_transport_stream_id number"
-Set the transport_stream_id (default 0x0001). This identifies a
-transponder in \s-1DVB\s0.
-.IP "\fB\-mpegts_service_id\fR \fInumber\fR" 4
-.IX Item "-mpegts_service_id number"
-Set the service_id (default 0x0001) also known as program in \s-1DVB\s0.
-.IP "\fB\-mpegts_pmt_start_pid\fR \fInumber\fR" 4
-.IX Item "-mpegts_pmt_start_pid number"
-Set the first \s-1PID\s0 for \s-1PMT\s0 (default 0x1000, max 0x1f00).
-.IP "\fB\-mpegts_start_pid\fR \fInumber\fR" 4
-.IX Item "-mpegts_start_pid number"
-Set the first \s-1PID\s0 for data packets (default 0x0100, max 0x0f00).
-.IP "\fB\-mpegts_m2ts_mode\fR \fInumber\fR" 4
-.IX Item "-mpegts_m2ts_mode number"
-Enable m2ts mode if set to 1. Default value is \-1 which disables m2ts mode.
-.IP "\fB\-muxrate\fR \fInumber\fR" 4
-.IX Item "-muxrate number"
-Set muxrate.
-.IP "\fB\-pes_payload_size\fR \fInumber\fR" 4
-.IX Item "-pes_payload_size number"
-Set minimum \s-1PES\s0 packet payload in bytes.
-.IP "\fB\-mpegts_flags\fR \fIflags\fR" 4
-.IX Item "-mpegts_flags flags"
-Set flags (see below).
-.IP "\fB\-mpegts_copyts\fR \fInumber\fR" 4
-.IX Item "-mpegts_copyts number"
-Preserve original timestamps, if value is set to 1. Default value is \-1, which
-results in shifting timestamps so that they start from 0.
-.IP "\fB\-tables_version\fR \fInumber\fR" 4
-.IX Item "-tables_version number"
-Set \s-1PAT\s0, \s-1PMT\s0 and \s-1SDT\s0 version (default 0, valid values are from 0 to 31, inclusively).
-This option allows updating stream structure so that standard consumer may
-detect the change. To do so, reopen output AVFormatContext (in case of \s-1API\s0
-usage) or restart ffmpeg instance, cyclically changing tables_version value:
-.Sp
-.Vb 7
-\&        ffmpeg -i source1.ts -codec copy -f mpegts -tables_version 0 udp://1.1.1.1:1111
-\&        ffmpeg -i source2.ts -codec copy -f mpegts -tables_version 1 udp://1.1.1.1:1111
-\&        ...
-\&        ffmpeg -i source3.ts -codec copy -f mpegts -tables_version 31 udp://1.1.1.1:1111
-\&        ffmpeg -i source1.ts -codec copy -f mpegts -tables_version 0 udp://1.1.1.1:1111
-\&        ffmpeg -i source2.ts -codec copy -f mpegts -tables_version 1 udp://1.1.1.1:1111
-\&        ...
-.Ve
-.PP
-Option mpegts_flags may take a set of such flags:
-.IP "\fBresend_headers\fR" 4
-.IX Item "resend_headers"
-Reemit \s-1PAT/PMT\s0 before writing the next packet.
-.IP "\fBlatm\fR" 4
-.IX Item "latm"
-Use \s-1LATM\s0 packetization for \s-1AAC\s0.
-.PP
-The recognized metadata settings in mpegts muxer are \f(CW\*(C`service_provider\*(C'\fR
-and \f(CW\*(C`service_name\*(C'\fR. If they are not set the default for
-\&\f(CW\*(C`service_provider\*(C'\fR is \*(L"FFmpeg\*(R" and the default for
-\&\f(CW\*(C`service_name\*(C'\fR is \*(L"Service01\*(R".
-.PP
-.Vb 9
-\&        ffmpeg -i file.mpg -c copy \e
-\&             -mpegts_original_network_id 0x1122 \e
-\&             -mpegts_transport_stream_id 0x3344 \e
-\&             -mpegts_service_id 0x5566 \e
-\&             -mpegts_pmt_start_pid 0x1500 \e
-\&             -mpegts_start_pid 0x150 \e
-\&             -metadata service_provider="Some provider" \e
-\&             -metadata service_name="Some Channel" \e
-\&             -y out.ts
-.Ve
-.Sh "null"
-.IX Subsection "null"
-Null muxer.
-.PP
-This muxer does not generate any output file, it is mainly useful for
-testing or benchmarking purposes.
-.PP
-For example to benchmark decoding with \fBffmpeg\fR you can use the
-command:
-.PP
-.Vb 1
-\&        ffmpeg -benchmark -i INPUT -f null out.null
-.Ve
-.PP
-Note that the above command does not read or write the \fIout.null\fR
-file, but specifying the output file is required by the \fBffmpeg\fR
-syntax.
-.PP
-Alternatively you can write the command as:
-.PP
-.Vb 1
-\&        ffmpeg -benchmark -i INPUT -f null -
-.Ve
-.Sh "ogg"
-.IX Subsection "ogg"
-Ogg container muxer.
-.IP "\fB\-page_duration\fR \fIduration\fR" 4
-.IX Item "-page_duration duration"
-Preferred page duration, in microseconds. The muxer will attempt to create
-pages that are approximately \fIduration\fR microseconds long. This allows the
-user to compromise between seek granularity and container overhead. The default
-is 1 second. A value of 0 will fill all segments, making pages as large as
-possible. A value of 1 will effectively use 1 packet-per-page in most
-situations, giving a small seek granularity at the cost of additional container
-overhead.
-.Sh "segment, stream_segment, ssegment"
-.IX Subsection "segment, stream_segment, ssegment"
-Basic stream segmenter.
-.PP
-The segmenter muxer outputs streams to a number of separate files of nearly
-fixed duration. Output filename pattern can be set in a fashion similar to
-image2.
-.PP
-\&\f(CW\*(C`stream_segment\*(C'\fR is a variant of the muxer used to write to
-streaming output formats, i.e. which do not require global headers,
-and is recommended for outputting e.g. to \s-1MPEG\s0 transport stream segments.
-\&\f(CW\*(C`ssegment\*(C'\fR is a shorter alias for \f(CW\*(C`stream_segment\*(C'\fR.
-.PP
-Every segment starts with a keyframe of the selected reference stream,
-which is set through the \fBreference_stream\fR option.
-.PP
-Note that if you want accurate splitting for a video file, you need to
-make the input key frames correspond to the exact splitting times
-expected by the segmenter, or the segment muxer will start the new
-segment with the key frame found next after the specified start
-time.
-.PP
-The segment muxer works best with a single constant frame rate video.
-.PP
-Optionally it can generate a list of the created segments, by setting
-the option \fIsegment_list\fR. The list type is specified by the
-\&\fIsegment_list_type\fR option.
-.PP
-The segment muxer supports the following options:
-.IP "\fBreference_stream\fR \fIspecifier\fR" 4
-.IX Item "reference_stream specifier"
-Set the reference stream, as specified by the string \fIspecifier\fR.
-If \fIspecifier\fR is set to \f(CW\*(C`auto\*(C'\fR, the reference is choosen
-automatically. Otherwise it must be a stream specifier (see the ``Stream
-specifiers'' chapter in the ffmpeg manual) which specifies the
-reference stream. The default value is \f(CW\*(C`auto\*(C'\fR.
-.IP "\fBsegment_format\fR \fIformat\fR" 4
-.IX Item "segment_format format"
-Override the inner container format, by default it is guessed by the filename
-extension.
-.IP "\fBsegment_list\fR \fIname\fR" 4
-.IX Item "segment_list name"
-Generate also a listfile named \fIname\fR. If not specified no
-listfile is generated.
-.IP "\fBsegment_list_flags\fR \fIflags\fR" 4
-.IX Item "segment_list_flags flags"
-Set flags affecting the segment list generation.
-.Sp
-It currently supports the following flags:
-.RS 4
-.IP "\fBcache\fR" 4
-.IX Item "cache"
-Allow caching (only affects M3U8 list files).
-.IP "\fBlive\fR" 4
-.IX Item "live"
-Allow live-friendly file generation.
-.RE
-.RS 4
-.Sp
-Default value is \f(CW\*(C`samp\*(C'\fR.
-.RE
-.IP "\fBsegment_list_size\fR \fIsize\fR" 4
-.IX Item "segment_list_size size"
-Update the list file so that it contains at most the last \fIsize\fR
-segments. If 0 the list file will contain all the segments. Default
-value is 0.
-.IP "\fBsegment_list_type\fR \fItype\fR" 4
-.IX Item "segment_list_type type"
-Specify the format for the segment list file.
-.Sp
-The following values are recognized:
-.RS 4
-.IP "\fBflat\fR" 4
-.IX Item "flat"
-Generate a flat list for the created segments, one segment per line.
-.IP "\fBcsv, ext\fR" 4
-.IX Item "csv, ext"
-Generate a list for the created segments, one segment per line,
-each line matching the format (comma\-separated values):
-.Sp
-.Vb 1
-\&        <segment_filename>,<segment_start_time>,<segment_end_time>
-.Ve
-.Sp
-\&\fIsegment_filename\fR is the name of the output file generated by the
-muxer according to the provided pattern. \s-1CSV\s0 escaping (according to
-\&\s-1RFC4180\s0) is applied if required.
-.Sp
-\&\fIsegment_start_time\fR and \fIsegment_end_time\fR specify
-the segment start and end time expressed in seconds.
-.Sp
-A list file with the suffix \f(CW".csv"\fR or \f(CW".ext"\fR will
-auto-select this format.
-.Sp
-\&\fBext\fR is deprecated in favor or \fBcsv\fR.
-.IP "\fBffconcat\fR" 4
-.IX Item "ffconcat"
-Generate an ffconcat file for the created segments. The resulting file
-can be read using the FFmpeg concat demuxer.
-.Sp
-A list file with the suffix \f(CW".ffcat"\fR or \f(CW".ffconcat"\fR will
-auto-select this format.
-.IP "\fBm3u8\fR" 4
-.IX Item "m3u8"
-Generate an extended M3U8 file, version 3, compliant with
-<\fBhttp://tools.ietf.org/id/draft\-pantos\-http\-live\-streaming\fR>.
-.Sp
-A list file with the suffix \f(CW".m3u8"\fR will auto-select this format.
-.RE
-.RS 4
-.Sp
-If not specified the type is guessed from the list file name suffix.
-.RE
-.IP "\fBsegment_time\fR \fItime\fR" 4
-.IX Item "segment_time time"
-Set segment duration to \fItime\fR, the value must be a duration
-specification. Default value is \*(L"2\*(R". See also the
-\&\fBsegment_times\fR option.
-.Sp
-Note that splitting may not be accurate, unless you force the
-reference stream key-frames at the given time. See the introductory
-notice and the examples below.
-.IP "\fBsegment_time_delta\fR \fIdelta\fR" 4
-.IX Item "segment_time_delta delta"
-Specify the accuracy time when selecting the start time for a
-segment, expressed as a duration specification. Default value is \*(L"0\*(R".
-.Sp
-When delta is specified a key-frame will start a new segment if its
-\&\s-1PTS\s0 satisfies the relation:
-.Sp
-.Vb 1
-\&        PTS >= start_time - time_delta
-.Ve
-.Sp
-This option is useful when splitting video content, which is always
-split at \s-1GOP\s0 boundaries, in case a key frame is found just before the
-specified split time.
-.Sp
-In particular may be used in combination with the \fIffmpeg\fR option
-\&\fIforce_key_frames\fR. The key frame times specified by
-\&\fIforce_key_frames\fR may not be set accurately because of rounding
-issues, with the consequence that a key frame time may result set just
-before the specified time. For constant frame rate videos a value of
-1/2*\fIframe_rate\fR should address the worst case mismatch between
-the specified time and the time set by \fIforce_key_frames\fR.
-.IP "\fBsegment_times\fR \fItimes\fR" 4
-.IX Item "segment_times times"
-Specify a list of split points. \fItimes\fR contains a list of comma
-separated duration specifications, in increasing order. See also
-the \fBsegment_time\fR option.
-.IP "\fBsegment_frames\fR \fIframes\fR" 4
-.IX Item "segment_frames frames"
-Specify a list of split video frame numbers. \fIframes\fR contains a
-list of comma separated integer numbers, in increasing order.
-.Sp
-This option specifies to start a new segment whenever a reference
-stream key frame is found and the sequential number (starting from 0)
-of the frame is greater or equal to the next value in the list.
-.IP "\fBsegment_wrap\fR \fIlimit\fR" 4
-.IX Item "segment_wrap limit"
-Wrap around segment index once it reaches \fIlimit\fR.
-.IP "\fBsegment_start_number\fR \fInumber\fR" 4
-.IX Item "segment_start_number number"
-Set the sequence number of the first segment. Defaults to \f(CW0\fR.
-.IP "\fBreset_timestamps\fR \fI1|0\fR" 4
-.IX Item "reset_timestamps 1|0"
-Reset timestamps at the begin of each segment, so that each segment
-will start with near-zero timestamps. It is meant to ease the playback
-of the generated segments. May not work with some combinations of
-muxers/codecs. It is set to \f(CW0\fR by default.
-.IP "\fBinitial_offset\fR \fIoffset\fR" 4
-.IX Item "initial_offset offset"
-Specify timestamp offset to apply to the output packet timestamps. The
-argument must be a time duration specification, and defaults to 0.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.IP "\(bu" 4
-To remux the content of file \fIin.mkv\fR to a list of segments
-\&\fIout\-000.nut\fR, \fIout\-001.nut\fR, etc., and write the list of
-generated segments to \fIout.list\fR:
-.Sp
-.Vb 1
-\&        ffmpeg -i in.mkv -codec copy -map 0 -f segment -segment_list out.list out%03d.nut
-.Ve
-.IP "\(bu" 4
-As the example above, but segment the input file according to the split
-points specified by the \fIsegment_times\fR option:
-.Sp
-.Vb 1
-\&        ffmpeg -i in.mkv -codec copy -map 0 -f segment -segment_list out.csv -segment_times 1,2,3,5,8,13,21 out%03d.nut
-.Ve
-.IP "\(bu" 4
-As the example above, but use the \fBffmpeg\fR \fBforce_key_frames\fR
-option to force key frames in the input at the specified location, together
-with the segment option \fBsegment_time_delta\fR to account for
-possible roundings operated when setting key frame times.
-.Sp
-.Vb 2
-\&        ffmpeg -i in.mkv -force_key_frames 1,2,3,5,8,13,21 -codec:v mpeg4 -codec:a pcm_s16le -map 0 \e
-\&        -f segment -segment_list out.csv -segment_times 1,2,3,5,8,13,21 -segment_time_delta 0.05 out%03d.nut
-.Ve
-.Sp
-In order to force key frames on the input file, transcoding is
-required.
-.IP "\(bu" 4
-Segment the input file by splitting the input file according to the
-frame numbers sequence specified with the \fBsegment_frames\fR option:
-.Sp
-.Vb 1
-\&        ffmpeg -i in.mkv -codec copy -map 0 -f segment -segment_list out.csv -segment_frames 100,200,300,500,800 out%03d.nut
-.Ve
-.IP "\(bu" 4
-To convert the \fIin.mkv\fR to \s-1TS\s0 segments using the \f(CW\*(C`libx264\*(C'\fR
-and \f(CW\*(C`libfaac\*(C'\fR encoders:
-.Sp
-.Vb 1
-\&        ffmpeg -i in.mkv -map 0 -codec:v libx264 -codec:a libfaac -f ssegment -segment_list out.list out%03d.ts
-.Ve
-.IP "\(bu" 4
-Segment the input file, and create an M3U8 live playlist (can be used
-as live \s-1HLS\s0 source):
-.Sp
-.Vb 2
-\&        ffmpeg -re -i in.mkv -codec copy -map 0 -f segment -segment_list playlist.m3u8 \e
-\&        -segment_list_flags +live -segment_time 10 out%03d.mkv
-.Ve
-.Sh "tee"
-.IX Subsection "tee"
-The tee muxer can be used to write the same data to several files or any
-other kind of muxer. It can be used, for example, to both stream a video to
-the network and save it to disk at the same time.
-.PP
-It is different from specifying several outputs to the \fBffmpeg\fR
-command-line tool because the audio and video data will be encoded only once
-with the tee muxer; encoding can be a very expensive process. It is not
-useful when using the libavformat \s-1API\s0 directly because it is then possible
-to feed the same packets to several muxers directly.
-.PP
-The slave outputs are specified in the file name given to the muxer,
-separated by '|'. If any of the slave name contains the '|' separator,
-leading or trailing spaces or any special character, it must be
-escaped (see the ``Quoting and escaping'' section in the ffmpeg-utils
-manual).
-.PP
-Muxer options can be specified for each slave by prepending them as a list of
-\&\fIkey\fR=\fIvalue\fR pairs separated by ':', between square brackets. If
-the options values contain a special character or the ':' separator, they
-must be escaped; note that this is a second level escaping.
-.PP
-The following special options are also recognized:
-.IP "\fBf\fR" 4
-.IX Item "f"
-Specify the format name. Useful if it cannot be guessed from the
-output name suffix.
-.IP "\fBbsfs[/\fR\fIspec\fR\fB]\fR" 4
-.IX Item "bsfs[/spec]"
-Specify a list of bitstream filters to apply to the specified
-output. It is possible to specify to which streams a given bitstream
-filter applies, by appending a stream specifier to the option
-separated by \f(CW\*(C`/\*(C'\fR. If the stream specifier is not specified, the
-bistream filters will be applied to all streams in the output.
-.Sp
-Several bitstream filters can be specified, separated by \*(L",\*(R".
-.IP "\fBselect\fR" 4
-.IX Item "select"
-Select the streams that should be mapped to the slave output,
-specified by a stream specifier. If not specified, this defaults to
-all the input streams.
-.PP
-Some examples follow.
-.IP "\(bu" 4
-Encode something and both archive it in a WebM file and stream it
-as MPEG-TS over \s-1UDP\s0 (the streams need to be explicitly mapped):
-.Sp
-.Vb 2
-\&        ffmpeg -i ... -c:v libx264 -c:a mp2 -f tee -map 0:v -map 0:a
-\&          "archive-20121107.mkv|[f=mpegts]udp://10.0.1.255:1234/"
-.Ve
-.IP "\(bu" 4
-Use \fBffmpeg\fR to encode the input, and send the output
-to three different destinations. The \f(CW\*(C`dump_extra\*(C'\fR bitstream
-filter is used to add extradata information to all the output video
-keyframes packets, as requested by the MPEG-TS format. The select
-option is applied to \fIout.aac\fR in order to make it contain only
-audio packets.
-.Sp
-.Vb 2
-\&        ffmpeg -i ... -map 0 -flags +global_header -c:v libx264 -c:a aac -strict experimental
-\&               -f tee "[bsfs/v=dump_extra]out.ts|[movflags=+faststart]out.mp4|[select=a]out.aac"
-.Ve
-.PP
-Note: some codecs may need different options depending on the output format;
-the auto-detection of this can not work with the tee muxer. The main example
-is the \fBglobal_header\fR flag.
-.SH "METADATA"
-.IX Header "METADATA"
-FFmpeg is able to dump metadata from media files into a simple UTF\-8\-encoded
-INI-like text file and then load it back using the metadata muxer/demuxer.
-.PP
-The file format is as follows:
-.IP "1." 4
-A file consists of a header and a number of metadata tags divided into sections,
-each on its own line.
-.IP "2." 4
-The header is a ';FFMETADATA' string, followed by a version number (now 1).
-.IP "3." 4
-Metadata tags are of the form 'key=value'
-.IP "4." 4
-Immediately after header follows global metadata
-.IP "5." 4
-After global metadata there may be sections with per\-stream/per\-chapter
-metadata.
-.IP "6." 4
-A section starts with the section name in uppercase (i.e. \s-1STREAM\s0 or \s-1CHAPTER\s0) in
-brackets ('[', ']') and ends with next section or end of file.
-.IP "7." 4
-At the beginning of a chapter section there may be an optional timebase to be
-used for start/end values. It must be in form 'TIMEBASE=num/den', where num and
-den are integers. If the timebase is missing then start/end times are assumed to
-be in milliseconds.
-Next a chapter section must contain chapter start and end times in form
-\&'START=num', 'END=num', where num is a positive integer.
-.IP "8." 4
-Empty lines and lines starting with ';' or '#' are ignored.
-.IP "9." 4
-Metadata keys or values containing special characters ('=', ';', '#', '\e' and a
-newline) must be escaped with a backslash '\e'.
-.IP "10." 4
-.IX Item "10."
-Note that whitespace in metadata (e.g. foo = bar) is considered to be a part of
-the tag (in the example above key is 'foo ', value is ' bar').
-.PP
-A ffmetadata file might look like this:
-.PP
-.Vb 4
-\&        ;FFMETADATA1
-\&        title=bike\e\eshed
-\&        ;this is a comment
-\&        artist=FFmpeg troll team
-.Ve
-.PP
-.Vb 9
-\&        [CHAPTER]
-\&        TIMEBASE=1/1000
-\&        START=0
-\&        #chapter ends at 0:01:00
-\&        END=60000
-\&        title=chapter \e#1
-\&        [STREAM]
-\&        title=multi\e
-\&        line
-.Ve
-.PP
-By using the ffmetadata muxer and demuxer it is possible to extract
-metadata from an input file to an ffmetadata file, and then transcode
-the file into an output file with the edited ffmetadata file.
-.PP
-Extracting an ffmetadata file with \fIffmpeg\fR goes as follows:
-.PP
-.Vb 1
-\&        ffmpeg -i INPUT -f ffmetadata FFMETADATAFILE
-.Ve
-.PP
-Reinserting edited metadata information from the \s-1FFMETADATAFILE\s0 file can
-be done as:
-.PP
-.Vb 1
-\&        ffmpeg -i INPUT -i FFMETADATAFILE -map_metadata 1 -codec copy OUTPUT
-.Ve
-.SH "SEE ALSO"
-.IX Header "SEE ALSO"
-\&\fIffmpeg\fR\|(1), \fIffplay\fR\|(1), \fIffprobe\fR\|(1), \fIffserver\fR\|(1), \fIlibavformat\fR\|(3)
-.SH "AUTHORS"
-.IX Header "AUTHORS"
-The FFmpeg developers.
-.PP
-For details about the authorship, see the Git history of the project
-(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
-\&\fBgit log\fR in the FFmpeg source directory, or browsing the
-online repository at <\fBhttp://source.ffmpeg.org\fR>.
-.PP
-Maintainers for the specific components are listed in the file
-\&\fI\s-1MAINTAINERS\s0\fR in the source code tree.
diff --git a/contrib/sdk/sources/ffmpeg/doc/ffmpeg-protocols.1 b/contrib/sdk/sources/ffmpeg/doc/ffmpeg-protocols.1
deleted file mode 100644
index 0d9148782d..0000000000
--- a/contrib/sdk/sources/ffmpeg/doc/ffmpeg-protocols.1
+++ /dev/null
@@ -1,1199 +0,0 @@
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-.rm #[ #] #H #V #F C
-.\" ========================================================================
-.\"
-.IX Title "FFMPEG-PROTOCOLS 1"
-.TH FFMPEG-PROTOCOLS 1 "2013-12-14" " " " "
-.SH "NAME"
-ffmpeg\-protocols \- FFmpeg protocols
-.SH "DESCRIPTION"
-.IX Header "DESCRIPTION"
-This document describes the input and output protocols provided by the
-libavformat library.
-.SH "PROTOCOLS"
-.IX Header "PROTOCOLS"
-Protocols are configured elements in FFmpeg that enable access to
-resources that require specific protocols.
-.PP
-When you configure your FFmpeg build, all the supported protocols are
-enabled by default. You can list all available ones using the
-configure option \*(L"\-\-list\-protocols\*(R".
-.PP
-You can disable all the protocols using the configure option
-\&\*(L"\-\-disable\-protocols\*(R", and selectively enable a protocol using the
-option "\-\-enable\-protocol=\fI\s-1PROTOCOL\s0\fR\*(L", or you can disable a
-particular protocol using the option
-\&\*(R"\-\-disable\-protocol=\fI\s-1PROTOCOL\s0\fR".
-.PP
-The option \*(L"\-protocols\*(R" of the ff* tools will display the list of
-supported protocols.
-.PP
-A description of the currently available protocols follows.
-.Sh "bluray"
-.IX Subsection "bluray"
-Read BluRay playlist.
-.PP
-The accepted options are:
-.IP "\fBangle\fR" 4
-.IX Item "angle"
-BluRay angle
-.IP "\fBchapter\fR" 4
-.IX Item "chapter"
-Start chapter (1...N)
-.IP "\fBplaylist\fR" 4
-.IX Item "playlist"
-Playlist to read (\s-1BDMV/PLAYLIST/\s0?????.mpls)
-.PP
-Examples:
-.PP
-Read longest playlist from BluRay mounted to /mnt/bluray:
-.PP
-.Vb 1
-\&        bluray:/mnt/bluray
-.Ve
-.PP
-Read angle 2 of playlist 4 from BluRay mounted to /mnt/bluray, start from chapter 2:
-.PP
-.Vb 1
-\&        -playlist 4 -angle 2 -chapter 2 bluray:/mnt/bluray
-.Ve
-.Sh "cache"
-.IX Subsection "cache"
-Caching wrapper for input stream.
-.PP
-Cache the input stream to temporary file. It brings seeking capability to live streams.
-.PP
-.Vb 1
-\&        cache:<URL>
-.Ve
-.Sh "concat"
-.IX Subsection "concat"
-Physical concatenation protocol.
-.PP
-Allow to read and seek from many resource in sequence as if they were
-a unique resource.
-.PP
-A \s-1URL\s0 accepted by this protocol has the syntax:
-.PP
-.Vb 1
-\&        concat:<URL1>|<URL2>|...|<URLN>
-.Ve
-.PP
-where \fI\s-1URL1\s0\fR, \fI\s-1URL2\s0\fR, ..., \fI\s-1URLN\s0\fR are the urls of the
-resource to be concatenated, each one possibly specifying a distinct
-protocol.
-.PP
-For example to read a sequence of files \fIsplit1.mpeg\fR,
-\&\fIsplit2.mpeg\fR, \fIsplit3.mpeg\fR with \fBffplay\fR use the
-command:
-.PP
-.Vb 1
-\&        ffplay concat:split1.mpeg\e|split2.mpeg\e|split3.mpeg
-.Ve
-.PP
-Note that you may need to escape the character \*(L"|\*(R" which is special for
-many shells.
-.Sh "crypto"
-.IX Subsection "crypto"
-AES-encrypted stream reading protocol.
-.PP
-The accepted options are:
-.IP "\fBkey\fR" 4
-.IX Item "key"
-Set the \s-1AES\s0 decryption key binary block from given hexadecimal representation.
-.IP "\fBiv\fR" 4
-.IX Item "iv"
-Set the \s-1AES\s0 decryption initialization vector binary block from given hexadecimal representation.
-.PP
-Accepted \s-1URL\s0 formats:
-.PP
-.Vb 2
-\&        crypto:<URL>
-\&        crypto+<URL>
-.Ve
-.Sh "data"
-.IX Subsection "data"
-Data in-line in the \s-1URI\s0. See <\fBhttp://en.wikipedia.org/wiki/Data_URI_scheme\fR>.
-.PP
-For example, to convert a \s-1GIF\s0 file given inline with \fBffmpeg\fR:
-.PP
-.Vb 1
-\&        ffmpeg -i "data:image/gif;base64,R0lGODdhCAAIAMIEAAAAAAAA//8AAP//AP///////////////ywAAAAACAAIAAADF0gEDLojDgdGiJdJqUX02iB4E8Q9jUMkADs=" smiley.png
-.Ve
-.Sh "file"
-.IX Subsection "file"
-File access protocol.
-.PP
-Allow to read from or read to a file.
-.PP
-For example to read from a file \fIinput.mpeg\fR with \fBffmpeg\fR
-use the command:
-.PP
-.Vb 1
-\&        ffmpeg -i file:input.mpeg output.mpeg
-.Ve
-.PP
-The ff* tools default to the file protocol, that is a resource
-specified with the name \*(L"\s-1FILE\s0.mpeg\*(R" is interpreted as the \s-1URL\s0
-\&\*(L"file:FILE.mpeg\*(R".
-.PP
-This protocol accepts the following options:
-.IP "\fBtruncate\fR" 4
-.IX Item "truncate"
-Truncate existing files on write, if set to 1. A value of 0 prevents
-truncating. Default value is 1.
-.IP "\fBblocksize\fR" 4
-.IX Item "blocksize"
-Set I/O operation maximum block size, in bytes. Default value is
-\&\f(CW\*(C`INT_MAX\*(C'\fR, which results in not limiting the requested block size.
-Setting this value reasonably low improves user termination request reaction
-time, which is valuable for files on slow medium.
-.Sh "ftp"
-.IX Subsection "ftp"
-\&\s-1FTP\s0 (File Transfer Protocol).
-.PP
-Allow to read from or write to remote resources using \s-1FTP\s0 protocol.
-.PP
-Following syntax is required.
-.PP
-.Vb 1
-\&        ftp://[user[:password]@]server[:port]/path/to/remote/resource.mpeg
-.Ve
-.PP
-This protocol accepts the following options.
-.IP "\fBtimeout\fR" 4
-.IX Item "timeout"
-Set timeout of socket I/O operations used by the underlying low level
-operation. By default it is set to \-1, which means that the timeout is
-not specified.
-.IP "\fBftp-anonymous-password\fR" 4
-.IX Item "ftp-anonymous-password"
-Password used when login as anonymous user. Typically an e\-mail address
-should be used.
-.IP "\fBftp-write-seekable\fR" 4
-.IX Item "ftp-write-seekable"
-Control seekability of connection during encoding. If set to 1 the
-resource is supposed to be seekable, if set to 0 it is assumed not
-to be seekable. Default value is 0.
-.PP
-\&\s-1NOTE:\s0 Protocol can be used as output, but it is recommended to not do
-it, unless special care is taken (tests, customized server configuration
-etc.). Different \s-1FTP\s0 servers behave in different way during seek
-operation. ff* tools may produce incomplete content due to server limitations.
-.Sh "gopher"
-.IX Subsection "gopher"
-Gopher protocol.
-.Sh "hls"
-.IX Subsection "hls"
-Read Apple \s-1HTTP\s0 Live Streaming compliant segmented stream as
-a uniform one. The M3U8 playlists describing the segments can be
-remote \s-1HTTP\s0 resources or local files, accessed using the standard
-file protocol.
-The nested protocol is declared by specifying
-"+\fIproto\fR" after the hls \s-1URI\s0 scheme name, where \fIproto\fR
-is either \*(L"file\*(R" or \*(L"http\*(R".
-.PP
-.Vb 2
-\&        hls+http://host/path/to/remote/resource.m3u8
-\&        hls+file://path/to/local/resource.m3u8
-.Ve
-.PP
-Using this protocol is discouraged \- the hls demuxer should work
-just as well (if not, please report the issues) and is more complete.
-To use the hls demuxer instead, simply use the direct URLs to the
-m3u8 files.
-.Sh "http"
-.IX Subsection "http"
-\&\s-1HTTP\s0 (Hyper Text Transfer Protocol).
-.PP
-This protocol accepts the following options.
-.IP "\fBseekable\fR" 4
-.IX Item "seekable"
-Control seekability of connection. If set to 1 the resource is
-supposed to be seekable, if set to 0 it is assumed not to be seekable,
-if set to \-1 it will try to autodetect if it is seekable. Default
-value is \-1.
-.IP "\fBchunked_post\fR" 4
-.IX Item "chunked_post"
-If set to 1 use chunked transfer-encoding for posts, default is 1.
-.IP "\fBheaders\fR" 4
-.IX Item "headers"
-Set custom \s-1HTTP\s0 headers, can override built in default headers. The
-value must be a string encoding the headers.
-.IP "\fBcontent_type\fR" 4
-.IX Item "content_type"
-Force a content type.
-.IP "\fBuser-agent\fR" 4
-.IX Item "user-agent"
-Override User-Agent header. If not specified the protocol will use a
-string describing the libavformat build.
-.IP "\fBmultiple_requests\fR" 4
-.IX Item "multiple_requests"
-Use persistent connections if set to 1. By default it is 0.
-.IP "\fBpost_data\fR" 4
-.IX Item "post_data"
-Set custom \s-1HTTP\s0 post data.
-.IP "\fBtimeout\fR" 4
-.IX Item "timeout"
-Set timeout of socket I/O operations used by the underlying low level
-operation. By default it is set to \-1, which means that the timeout is
-not specified.
-.IP "\fBmime_type\fR" 4
-.IX Item "mime_type"
-Set \s-1MIME\s0 type.
-.IP "\fBicy\fR" 4
-.IX Item "icy"
-If set to 1 request \s-1ICY\s0 (SHOUTcast) metadata from the server. If the server
-supports this, the metadata has to be retrieved by the application by reading
-the \fBicy_metadata_headers\fR and \fBicy_metadata_packet\fR options.
-The default is 0.
-.IP "\fBicy_metadata_headers\fR" 4
-.IX Item "icy_metadata_headers"
-If the server supports \s-1ICY\s0 metadata, this contains the \s-1ICY\s0 specific \s-1HTTP\s0 reply
-headers, separated with newline characters.
-.IP "\fBicy_metadata_packet\fR" 4
-.IX Item "icy_metadata_packet"
-If the server supports \s-1ICY\s0 metadata, and \fBicy\fR was set to 1, this
-contains the last non-empty metadata packet sent by the server.
-.IP "\fBcookies\fR" 4
-.IX Item "cookies"
-Set the cookies to be sent in future requests. The format of each cookie is the
-same as the value of a Set-Cookie \s-1HTTP\s0 response field. Multiple cookies can be
-delimited by a newline character.
-.PP
-\fI\s-1HTTP\s0 Cookies\fR
-.IX Subsection "HTTP Cookies"
-.PP
-Some \s-1HTTP\s0 requests will be denied unless cookie values are passed in with the
-request. The \fBcookies\fR option allows these cookies to be specified. At
-the very least, each cookie must specify a value along with a path and domain.
-\&\s-1HTTP\s0 requests that match both the domain and path will automatically include the
-cookie value in the \s-1HTTP\s0 Cookie header field. Multiple cookies can be delimited
-by a newline.
-.PP
-The required syntax to play a stream specifying a cookie is:
-.PP
-.Vb 1
-\&        ffplay -cookies "nlqptid=nltid=tsn; path=/; domain=somedomain.com;" http://somedomain.com/somestream.m3u8
-.Ve
-.Sh "mmst"
-.IX Subsection "mmst"
-\&\s-1MMS\s0 (Microsoft Media Server) protocol over \s-1TCP\s0.
-.Sh "mmsh"
-.IX Subsection "mmsh"
-\&\s-1MMS\s0 (Microsoft Media Server) protocol over \s-1HTTP\s0.
-.PP
-The required syntax is:
-.PP
-.Vb 1
-\&        mmsh://<server>[:<port>][/<app>][/<playpath>]
-.Ve
-.Sh "md5"
-.IX Subsection "md5"
-\&\s-1MD5\s0 output protocol.
-.PP
-Computes the \s-1MD5\s0 hash of the data to be written, and on close writes
-this to the designated output or stdout if none is specified. It can
-be used to test muxers without writing an actual file.
-.PP
-Some examples follow.
-.PP
-.Vb 2
-\&        # Write the MD5 hash of the encoded AVI file to the file output.avi.md5.
-\&        ffmpeg -i input.flv -f avi -y md5:output.avi.md5
-.Ve
-.PP
-.Vb 2
-\&        # Write the MD5 hash of the encoded AVI file to stdout.
-\&        ffmpeg -i input.flv -f avi -y md5:
-.Ve
-.PP
-Note that some formats (typically \s-1MOV\s0) require the output protocol to
-be seekable, so they will fail with the \s-1MD5\s0 output protocol.
-.Sh "pipe"
-.IX Subsection "pipe"
-\&\s-1UNIX\s0 pipe access protocol.
-.PP
-Allow to read and write from \s-1UNIX\s0 pipes.
-.PP
-The accepted syntax is:
-.PP
-.Vb 1
-\&        pipe:[<number>]
-.Ve
-.PP
-\&\fInumber\fR is the number corresponding to the file descriptor of the
-pipe (e.g. 0 for stdin, 1 for stdout, 2 for stderr).  If \fInumber\fR
-is not specified, by default the stdout file descriptor will be used
-for writing, stdin for reading.
-.PP
-For example to read from stdin with \fBffmpeg\fR:
-.PP
-.Vb 3
-\&        cat test.wav | ffmpeg -i pipe:0
-\&        # ...this is the same as...
-\&        cat test.wav | ffmpeg -i pipe:
-.Ve
-.PP
-For writing to stdout with \fBffmpeg\fR:
-.PP
-.Vb 3
-\&        ffmpeg -i test.wav -f avi pipe:1 | cat > test.avi
-\&        # ...this is the same as...
-\&        ffmpeg -i test.wav -f avi pipe: | cat > test.avi
-.Ve
-.PP
-This protocol accepts the following options:
-.IP "\fBblocksize\fR" 4
-.IX Item "blocksize"
-Set I/O operation maximum block size, in bytes. Default value is
-\&\f(CW\*(C`INT_MAX\*(C'\fR, which results in not limiting the requested block size.
-Setting this value reasonably low improves user termination request reaction
-time, which is valuable if data transmission is slow.
-.PP
-Note that some formats (typically \s-1MOV\s0), require the output protocol to
-be seekable, so they will fail with the pipe output protocol.
-.Sh "rtmp"
-.IX Subsection "rtmp"
-Real-Time Messaging Protocol.
-.PP
-The Real-Time Messaging Protocol (\s-1RTMP\s0) is used for streaming multimedia
-content across a \s-1TCP/IP\s0 network.
-.PP
-The required syntax is:
-.PP
-.Vb 1
-\&        rtmp://[<username>:<password>@]<server>[:<port>][/<app>][/<instance>][/<playpath>]
-.Ve
-.PP
-The accepted parameters are:
-.IP "\fBusername\fR" 4
-.IX Item "username"
-An optional username (mostly for publishing).
-.IP "\fBpassword\fR" 4
-.IX Item "password"
-An optional password (mostly for publishing).
-.IP "\fBserver\fR" 4
-.IX Item "server"
-The address of the \s-1RTMP\s0 server.
-.IP "\fBport\fR" 4
-.IX Item "port"
-The number of the \s-1TCP\s0 port to use (by default is 1935).
-.IP "\fBapp\fR" 4
-.IX Item "app"
-It is the name of the application to access. It usually corresponds to
-the path where the application is installed on the \s-1RTMP\s0 server
-(e.g. \fI/ondemand/\fR, \fI/flash/live/\fR, etc.). You can override
-the value parsed from the \s-1URI\s0 through the \f(CW\*(C`rtmp_app\*(C'\fR option, too.
-.IP "\fBplaypath\fR" 4
-.IX Item "playpath"
-It is the path or name of the resource to play with reference to the
-application specified in \fIapp\fR, may be prefixed by \*(L"mp4:\*(R". You
-can override the value parsed from the \s-1URI\s0 through the \f(CW\*(C`rtmp_playpath\*(C'\fR
-option, too.
-.IP "\fBlisten\fR" 4
-.IX Item "listen"
-Act as a server, listening for an incoming connection.
-.IP "\fBtimeout\fR" 4
-.IX Item "timeout"
-Maximum time to wait for the incoming connection. Implies listen.
-.PP
-Additionally, the following parameters can be set via command line options
-(or in code via \f(CW\*(C`AVOption\*(C'\fRs):
-.IP "\fBrtmp_app\fR" 4
-.IX Item "rtmp_app"
-Name of application to connect on the \s-1RTMP\s0 server. This option
-overrides the parameter specified in the \s-1URI\s0.
-.IP "\fBrtmp_buffer\fR" 4
-.IX Item "rtmp_buffer"
-Set the client buffer time in milliseconds. The default is 3000.
-.IP "\fBrtmp_conn\fR" 4
-.IX Item "rtmp_conn"
-Extra arbitrary \s-1AMF\s0 connection parameters, parsed from a string,
-e.g. like \f(CW\*(C`B:1 S:authMe O:1 NN:code:1.23 NS:flag:ok O:0\*(C'\fR.
-Each value is prefixed by a single character denoting the type,
-B for Boolean, N for number, S for string, O for object, or Z for null,
-followed by a colon. For Booleans the data must be either 0 or 1 for
-\&\s-1FALSE\s0 or \s-1TRUE\s0, respectively.  Likewise for Objects the data must be 0 or
-1 to end or begin an object, respectively. Data items in subobjects may
-be named, by prefixing the type with 'N' and specifying the name before
-the value (i.e. \f(CW\*(C`NB:myFlag:1\*(C'\fR). This option may be used multiple
-times to construct arbitrary \s-1AMF\s0 sequences.
-.IP "\fBrtmp_flashver\fR" 4
-.IX Item "rtmp_flashver"
-Version of the Flash plugin used to run the \s-1SWF\s0 player. The default
-is \s-1LNX\s0 9,0,124,2. (When publishing, the default is \s-1FMLE/3\s0.0 (compatible;
-<libavformat version>).)
-.IP "\fBrtmp_flush_interval\fR" 4
-.IX Item "rtmp_flush_interval"
-Number of packets flushed in the same request (\s-1RTMPT\s0 only). The default
-is 10.
-.IP "\fBrtmp_live\fR" 4
-.IX Item "rtmp_live"
-Specify that the media is a live stream. No resuming or seeking in
-live streams is possible. The default value is \f(CW\*(C`any\*(C'\fR, which means the
-subscriber first tries to play the live stream specified in the
-playpath. If a live stream of that name is not found, it plays the
-recorded stream. The other possible values are \f(CW\*(C`live\*(C'\fR and
-\&\f(CW\*(C`recorded\*(C'\fR.
-.IP "\fBrtmp_pageurl\fR" 4
-.IX Item "rtmp_pageurl"
-\&\s-1URL\s0 of the web page in which the media was embedded. By default no
-value will be sent.
-.IP "\fBrtmp_playpath\fR" 4
-.IX Item "rtmp_playpath"
-Stream identifier to play or to publish. This option overrides the
-parameter specified in the \s-1URI\s0.
-.IP "\fBrtmp_subscribe\fR" 4
-.IX Item "rtmp_subscribe"
-Name of live stream to subscribe to. By default no value will be sent.
-It is only sent if the option is specified or if rtmp_live
-is set to live.
-.IP "\fBrtmp_swfhash\fR" 4
-.IX Item "rtmp_swfhash"
-\&\s-1SHA256\s0 hash of the decompressed \s-1SWF\s0 file (32 bytes).
-.IP "\fBrtmp_swfsize\fR" 4
-.IX Item "rtmp_swfsize"
-Size of the decompressed \s-1SWF\s0 file, required for SWFVerification.
-.IP "\fBrtmp_swfurl\fR" 4
-.IX Item "rtmp_swfurl"
-\&\s-1URL\s0 of the \s-1SWF\s0 player for the media. By default no value will be sent.
-.IP "\fBrtmp_swfverify\fR" 4
-.IX Item "rtmp_swfverify"
-\&\s-1URL\s0 to player swf file, compute hash/size automatically.
-.IP "\fBrtmp_tcurl\fR" 4
-.IX Item "rtmp_tcurl"
-\&\s-1URL\s0 of the target stream. Defaults to proto://host[:port]/app.
-.PP
-For example to read with \fBffplay\fR a multimedia resource named
-\&\*(L"sample\*(R" from the application \*(L"vod\*(R" from an \s-1RTMP\s0 server \*(L"myserver\*(R":
-.PP
-.Vb 1
-\&        ffplay rtmp://myserver/vod/sample
-.Ve
-.PP
-To publish to a password protected server, passing the playpath and
-app names separately:
-.PP
-.Vb 1
-\&        ffmpeg -re -i <input> -f flv -rtmp_playpath some/long/path -rtmp_app long/app/name rtmp://username:password@myserver/
-.Ve
-.Sh "rtmpe"
-.IX Subsection "rtmpe"
-Encrypted Real-Time Messaging Protocol.
-.PP
-The Encrypted Real-Time Messaging Protocol (\s-1RTMPE\s0) is used for
-streaming multimedia content within standard cryptographic primitives,
-consisting of Diffie-Hellman key exchange and \s-1HMACSHA256\s0, generating
-a pair of \s-1RC4\s0 keys.
-.Sh "rtmps"
-.IX Subsection "rtmps"
-Real-Time Messaging Protocol over a secure \s-1SSL\s0 connection.
-.PP
-The Real-Time Messaging Protocol (\s-1RTMPS\s0) is used for streaming
-multimedia content across an encrypted connection.
-.Sh "rtmpt"
-.IX Subsection "rtmpt"
-Real-Time Messaging Protocol tunneled through \s-1HTTP\s0.
-.PP
-The Real-Time Messaging Protocol tunneled through \s-1HTTP\s0 (\s-1RTMPT\s0) is used
-for streaming multimedia content within \s-1HTTP\s0 requests to traverse
-firewalls.
-.Sh "rtmpte"
-.IX Subsection "rtmpte"
-Encrypted Real-Time Messaging Protocol tunneled through \s-1HTTP\s0.
-.PP
-The Encrypted Real-Time Messaging Protocol tunneled through \s-1HTTP\s0 (\s-1RTMPTE\s0)
-is used for streaming multimedia content within \s-1HTTP\s0 requests to traverse
-firewalls.
-.Sh "rtmpts"
-.IX Subsection "rtmpts"
-Real-Time Messaging Protocol tunneled through \s-1HTTPS\s0.
-.PP
-The Real-Time Messaging Protocol tunneled through \s-1HTTPS\s0 (\s-1RTMPTS\s0) is used
-for streaming multimedia content within \s-1HTTPS\s0 requests to traverse
-firewalls.
-.Sh "libssh"
-.IX Subsection "libssh"
-Secure File Transfer Protocol via libssh
-.PP
-Allow to read from or write to remote resources using \s-1SFTP\s0 protocol.
-.PP
-Following syntax is required.
-.PP
-.Vb 1
-\&        sftp://[user[:password]@]server[:port]/path/to/remote/resource.mpeg
-.Ve
-.PP
-This protocol accepts the following options.
-.IP "\fBtimeout\fR" 4
-.IX Item "timeout"
-Set timeout of socket I/O operations used by the underlying low level
-operation. By default it is set to \-1, which means that the timeout
-is not specified.
-.IP "\fBtruncate\fR" 4
-.IX Item "truncate"
-Truncate existing files on write, if set to 1. A value of 0 prevents
-truncating. Default value is 1.
-.PP
-Example: Play a file stored on remote server.
-.PP
-.Vb 1
-\&        ffplay sftp://user:password@server_address:22/home/user/resource.mpeg
-.Ve
-.Sh "librtmp rtmp, rtmpe, rtmps, rtmpt, rtmpte"
-.IX Subsection "librtmp rtmp, rtmpe, rtmps, rtmpt, rtmpte"
-Real-Time Messaging Protocol and its variants supported through
-librtmp.
-.PP
-Requires the presence of the librtmp headers and library during
-configuration. You need to explicitly configure the build with
-\&\*(L"\-\-enable\-librtmp\*(R". If enabled this will replace the native \s-1RTMP\s0
-protocol.
-.PP
-This protocol provides most client functions and a few server
-functions needed to support \s-1RTMP\s0, \s-1RTMP\s0 tunneled in \s-1HTTP\s0 (\s-1RTMPT\s0),
-encrypted \s-1RTMP\s0 (\s-1RTMPE\s0), \s-1RTMP\s0 over \s-1SSL/TLS\s0 (\s-1RTMPS\s0) and tunneled
-variants of these encrypted types (\s-1RTMPTE\s0, \s-1RTMPTS\s0).
-.PP
-The required syntax is:
-.PP
-.Vb 1
-\&        <rtmp_proto>://<server>[:<port>][/<app>][/<playpath>] <options>
-.Ve
-.PP
-where \fIrtmp_proto\fR is one of the strings \*(L"rtmp\*(R", \*(L"rtmpt\*(R", \*(L"rtmpe\*(R",
-\&\*(L"rtmps\*(R", \*(L"rtmpte\*(R", \*(L"rtmpts\*(R" corresponding to each \s-1RTMP\s0 variant, and
-\&\fIserver\fR, \fIport\fR, \fIapp\fR and \fIplaypath\fR have the same
-meaning as specified for the \s-1RTMP\s0 native protocol.
-\&\fIoptions\fR contains a list of space-separated options of the form
-\&\fIkey\fR=\fIval\fR.
-.PP
-See the librtmp manual page (man 3 librtmp) for more information.
-.PP
-For example, to stream a file in real-time to an \s-1RTMP\s0 server using
-\&\fBffmpeg\fR:
-.PP
-.Vb 1
-\&        ffmpeg -re -i myfile -f flv rtmp://myserver/live/mystream
-.Ve
-.PP
-To play the same stream using \fBffplay\fR:
-.PP
-.Vb 1
-\&        ffplay "rtmp://myserver/live/mystream live=1"
-.Ve
-.Sh "rtp"
-.IX Subsection "rtp"
-Real-time Transport Protocol.
-.PP
-The required syntax for an \s-1RTP\s0 \s-1URL\s0 is:
-rtp://\fIhostname\fR[:\fIport\fR][?\fIoption\fR=\fIval\fR...]
-.PP
-\&\fIport\fR specifies the \s-1RTP\s0 port to use.
-.PP
-The following \s-1URL\s0 options are supported:
-.IP "\fBttl=\fR\fIn\fR" 4
-.IX Item "ttl=n"
-Set the \s-1TTL\s0 (Time\-To\-Live) value (for multicast only).
-.IP "\fBrtcpport=\fR\fIn\fR" 4
-.IX Item "rtcpport=n"
-Set the remote \s-1RTCP\s0 port to \fIn\fR.
-.IP "\fBlocalrtpport=\fR\fIn\fR" 4
-.IX Item "localrtpport=n"
-Set the local \s-1RTP\s0 port to \fIn\fR.
-.IP "\fBlocalrtcpport=\fR\fIn\fR\fB'\fR" 4
-.IX Item "localrtcpport=n'"
-Set the local \s-1RTCP\s0 port to \fIn\fR.
-.IP "\fBpkt_size=\fR\fIn\fR" 4
-.IX Item "pkt_size=n"
-Set max packet size (in bytes) to \fIn\fR.
-.IP "\fBconnect=0|1\fR" 4
-.IX Item "connect=0|1"
-Do a \f(CW\*(C`connect()\*(C'\fR on the \s-1UDP\s0 socket (if set to 1) or not (if set
-to 0).
-.IP "\fBsources=\fR\fIip\fR\fB[,\fR\fIip\fR\fB]\fR" 4
-.IX Item "sources=ip[,ip]"
-List allowed source \s-1IP\s0 addresses.
-.IP "\fBblock=\fR\fIip\fR\fB[,\fR\fIip\fR\fB]\fR" 4
-.IX Item "block=ip[,ip]"
-List disallowed (blocked) source \s-1IP\s0 addresses.
-.IP "\fBwrite_to_source=0|1\fR" 4
-.IX Item "write_to_source=0|1"
-Send packets to the source address of the latest received packet (if
-set to 1) or to a default remote address (if set to 0).
-.IP "\fBlocalport=\fR\fIn\fR" 4
-.IX Item "localport=n"
-Set the local \s-1RTP\s0 port to \fIn\fR.
-.Sp
-This is a deprecated option. Instead, \fBlocalrtpport\fR should be
-used.
-.PP
-Important notes:
-.IP "1." 4
-If \fBrtcpport\fR is not set the \s-1RTCP\s0 port will be set to the \s-1RTP\s0
-port value plus 1.
-.IP "2." 4
-If \fBlocalrtpport\fR (the local \s-1RTP\s0 port) is not set any available
-port will be used for the local \s-1RTP\s0 and \s-1RTCP\s0 ports.
-.IP "3." 4
-If \fBlocalrtcpport\fR (the local \s-1RTCP\s0 port) is not set it will be
-set to the the local \s-1RTP\s0 port value plus 1.
-.Sh "rtsp"
-.IX Subsection "rtsp"
-\&\s-1RTSP\s0 is not technically a protocol handler in libavformat, it is a demuxer
-and muxer. The demuxer supports both normal \s-1RTSP\s0 (with data transferred
-over \s-1RTP\s0; this is used by e.g. Apple and Microsoft) and Real-RTSP (with
-data transferred over \s-1RDT\s0).
-.PP
-The muxer can be used to send a stream using \s-1RTSP\s0 \s-1ANNOUNCE\s0 to a server
-supporting it (currently Darwin Streaming Server and Mischa Spiegelmock's
-<\fBhttp://github.com/revmischa/rtsp\-server\fR>).
-.PP
-The required syntax for a \s-1RTSP\s0 url is:
-.PP
-.Vb 1
-\&        rtsp://<hostname>[:<port>]/<path>
-.Ve
-.PP
-The following options (set on the \fBffmpeg\fR/\fBffplay\fR command
-line, or set in code via \f(CW\*(C`AVOption\*(C'\fRs or in \f(CW\*(C`avformat_open_input\*(C'\fR),
-are supported:
-.PP
-Flags for \f(CW\*(C`rtsp_transport\*(C'\fR:
-.IP "\fBudp\fR" 4
-.IX Item "udp"
-Use \s-1UDP\s0 as lower transport protocol.
-.IP "\fBtcp\fR" 4
-.IX Item "tcp"
-Use \s-1TCP\s0 (interleaving within the \s-1RTSP\s0 control channel) as lower
-transport protocol.
-.IP "\fBudp_multicast\fR" 4
-.IX Item "udp_multicast"
-Use \s-1UDP\s0 multicast as lower transport protocol.
-.IP "\fBhttp\fR" 4
-.IX Item "http"
-Use \s-1HTTP\s0 tunneling as lower transport protocol, which is useful for
-passing proxies.
-.PP
-Multiple lower transport protocols may be specified, in that case they are
-tried one at a time (if the setup of one fails, the next one is tried).
-For the muxer, only the \f(CW\*(C`tcp\*(C'\fR and \f(CW\*(C`udp\*(C'\fR options are supported.
-.PP
-Flags for \f(CW\*(C`rtsp_flags\*(C'\fR:
-.IP "\fBfilter_src\fR" 4
-.IX Item "filter_src"
-Accept packets only from negotiated peer address and port.
-.IP "\fBlisten\fR" 4
-.IX Item "listen"
-Act as a server, listening for an incoming connection.
-.PP
-When receiving data over \s-1UDP\s0, the demuxer tries to reorder received packets
-(since they may arrive out of order, or packets may get lost totally). This
-can be disabled by setting the maximum demuxing delay to zero (via
-the \f(CW\*(C`max_delay\*(C'\fR field of AVFormatContext).
-.PP
-When watching multi-bitrate Real-RTSP streams with \fBffplay\fR, the
-streams to display can be chosen with \f(CW\*(C`\-vst\*(C'\fR \fIn\fR and
-\&\f(CW\*(C`\-ast\*(C'\fR \fIn\fR for video and audio respectively, and can be switched
-on the fly by pressing \f(CW\*(C`v\*(C'\fR and \f(CW\*(C`a\*(C'\fR.
-.PP
-Example command lines:
-.PP
-To watch a stream over \s-1UDP\s0, with a max reordering delay of 0.5 seconds:
-.PP
-.Vb 1
-\&        ffplay -max_delay 500000 -rtsp_transport udp rtsp://server/video.mp4
-.Ve
-.PP
-To watch a stream tunneled over \s-1HTTP:\s0
-.PP
-.Vb 1
-\&        ffplay -rtsp_transport http rtsp://server/video.mp4
-.Ve
-.PP
-To send a stream in realtime to a \s-1RTSP\s0 server, for others to watch:
-.PP
-.Vb 1
-\&        ffmpeg -re -i <input> -f rtsp -muxdelay 0.1 rtsp://server/live.sdp
-.Ve
-.PP
-To receive a stream in realtime:
-.PP
-.Vb 1
-\&        ffmpeg -rtsp_flags listen -i rtsp://ownaddress/live.sdp <output>
-.Ve
-.IP "\fBstimeout\fR" 4
-.IX Item "stimeout"
-Socket \s-1IO\s0 timeout in micro seconds.
-.Sh "sap"
-.IX Subsection "sap"
-Session Announcement Protocol (\s-1RFC\s0 2974). This is not technically a
-protocol handler in libavformat, it is a muxer and demuxer.
-It is used for signalling of \s-1RTP\s0 streams, by announcing the \s-1SDP\s0 for the
-streams regularly on a separate port.
-.PP
-\fIMuxer\fR
-.IX Subsection "Muxer"
-.PP
-The syntax for a \s-1SAP\s0 url given to the muxer is:
-.PP
-.Vb 1
-\&        sap://<destination>[:<port>][?<options>]
-.Ve
-.PP
-The \s-1RTP\s0 packets are sent to \fIdestination\fR on port \fIport\fR,
-or to port 5004 if no port is specified.
-\&\fIoptions\fR is a \f(CW\*(C`&\*(C'\fR\-separated list. The following options
-are supported:
-.IP "\fBannounce_addr=\fR\fIaddress\fR" 4
-.IX Item "announce_addr=address"
-Specify the destination \s-1IP\s0 address for sending the announcements to.
-If omitted, the announcements are sent to the commonly used \s-1SAP\s0
-announcement multicast address 224.2.127.254 (sap.mcast.net), or
-ff0e::2:7ffe if \fIdestination\fR is an IPv6 address.
-.IP "\fBannounce_port=\fR\fIport\fR" 4
-.IX Item "announce_port=port"
-Specify the port to send the announcements on, defaults to
-9875 if not specified.
-.IP "\fBttl=\fR\fIttl\fR" 4
-.IX Item "ttl=ttl"
-Specify the time to live value for the announcements and \s-1RTP\s0 packets,
-defaults to 255.
-.IP "\fBsame_port=\fR\fI0|1\fR" 4
-.IX Item "same_port=0|1"
-If set to 1, send all \s-1RTP\s0 streams on the same port pair. If zero (the
-default), all streams are sent on unique ports, with each stream on a
-port 2 numbers higher than the previous.
-VLC/Live555 requires this to be set to 1, to be able to receive the stream.
-The \s-1RTP\s0 stack in libavformat for receiving requires all streams to be sent
-on unique ports.
-.PP
-Example command lines follow.
-.PP
-To broadcast a stream on the local subnet, for watching in \s-1VLC:\s0
-.PP
-.Vb 1
-\&        ffmpeg -re -i <input> -f sap sap://224.0.0.255?same_port=1
-.Ve
-.PP
-Similarly, for watching in \fBffplay\fR:
-.PP
-.Vb 1
-\&        ffmpeg -re -i <input> -f sap sap://224.0.0.255
-.Ve
-.PP
-And for watching in \fBffplay\fR, over IPv6:
-.PP
-.Vb 1
-\&        ffmpeg -re -i <input> -f sap sap://[ff0e::1:2:3:4]
-.Ve
-.PP
-\fIDemuxer\fR
-.IX Subsection "Demuxer"
-.PP
-The syntax for a \s-1SAP\s0 url given to the demuxer is:
-.PP
-.Vb 1
-\&        sap://[<address>][:<port>]
-.Ve
-.PP
-\&\fIaddress\fR is the multicast address to listen for announcements on,
-if omitted, the default 224.2.127.254 (sap.mcast.net) is used. \fIport\fR
-is the port that is listened on, 9875 if omitted.
-.PP
-The demuxers listens for announcements on the given address and port.
-Once an announcement is received, it tries to receive that particular stream.
-.PP
-Example command lines follow.
-.PP
-To play back the first stream announced on the normal \s-1SAP\s0 multicast address:
-.PP
-.Vb 1
-\&        ffplay sap://
-.Ve
-.PP
-To play back the first stream announced on one the default IPv6 \s-1SAP\s0 multicast address:
-.PP
-.Vb 1
-\&        ffplay sap://[ff0e::2:7ffe]
-.Ve
-.Sh "sctp"
-.IX Subsection "sctp"
-Stream Control Transmission Protocol.
-.PP
-The accepted \s-1URL\s0 syntax is:
-.PP
-.Vb 1
-\&        sctp://<host>:<port>[?<options>]
-.Ve
-.PP
-The protocol accepts the following options:
-.IP "\fBlisten\fR" 4
-.IX Item "listen"
-If set to any value, listen for an incoming connection. Outgoing connection is done by default.
-.IP "\fBmax_streams\fR" 4
-.IX Item "max_streams"
-Set the maximum number of streams. By default no limit is set.
-.Sh "srtp"
-.IX Subsection "srtp"
-Secure Real-time Transport Protocol.
-.PP
-The accepted options are:
-.IP "\fBsrtp_in_suite\fR" 4
-.IX Item "srtp_in_suite"
-.PD 0
-.IP "\fBsrtp_out_suite\fR" 4
-.IX Item "srtp_out_suite"
-.PD
-Select input and output encoding suites.
-.Sp
-Supported values:
-.RS 4
-.IP "\fB\s-1AES_CM_128_HMAC_SHA1_80\s0\fR" 4
-.IX Item "AES_CM_128_HMAC_SHA1_80"
-.PD 0
-.IP "\fB\s-1SRTP_AES128_CM_HMAC_SHA1_80\s0\fR" 4
-.IX Item "SRTP_AES128_CM_HMAC_SHA1_80"
-.IP "\fB\s-1AES_CM_128_HMAC_SHA1_32\s0\fR" 4
-.IX Item "AES_CM_128_HMAC_SHA1_32"
-.IP "\fB\s-1SRTP_AES128_CM_HMAC_SHA1_32\s0\fR" 4
-.IX Item "SRTP_AES128_CM_HMAC_SHA1_32"
-.RE
-.RS 4
-.RE
-.IP "\fBsrtp_in_params\fR" 4
-.IX Item "srtp_in_params"
-.IP "\fBsrtp_out_params\fR" 4
-.IX Item "srtp_out_params"
-.PD
-Set input and output encoding parameters, which are expressed by a
-base64\-encoded representation of a binary block. The first 16 bytes of
-this binary block are used as master key, the following 14 bytes are
-used as master salt.
-.Sh "tcp"
-.IX Subsection "tcp"
-Trasmission Control Protocol.
-.PP
-The required syntax for a \s-1TCP\s0 url is:
-.PP
-.Vb 1
-\&        tcp://<hostname>:<port>[?<options>]
-.Ve
-.IP "\fBlisten\fR" 4
-.IX Item "listen"
-Listen for an incoming connection
-.IP "\fBtimeout=\fR\fImicroseconds\fR" 4
-.IX Item "timeout=microseconds"
-In read mode: if no data arrived in more than this time interval, raise error.
-In write mode: if socket cannot be written in more than this time interval, raise error.
-This also sets timeout on \s-1TCP\s0 connection establishing.
-.Sp
-.Vb 2
-\&        ffmpeg -i <input> -f <format> tcp://<hostname>:<port>?listen
-\&        ffplay tcp://<hostname>:<port>
-.Ve
-.Sh "tls"
-.IX Subsection "tls"
-Transport Layer Security (\s-1TLS\s0) / Secure Sockets Layer (\s-1SSL\s0)
-.PP
-The required syntax for a \s-1TLS/SSL\s0 url is:
-.PP
-.Vb 1
-\&        tls://<hostname>:<port>[?<options>]
-.Ve
-.PP
-The following parameters can be set via command line options
-(or in code via \f(CW\*(C`AVOption\*(C'\fRs):
-.IP "\fBca_file, cafile=\fR\fIfilename\fR" 4
-.IX Item "ca_file, cafile=filename"
-A file containing certificate authority (\s-1CA\s0) root certificates to treat
-as trusted. If the linked \s-1TLS\s0 library contains a default this might not
-need to be specified for verification to work, but not all libraries and
-setups have defaults built in.
-The file must be in OpenSSL \s-1PEM\s0 format.
-.IP "\fBtls_verify=\fR\fI1|0\fR" 4
-.IX Item "tls_verify=1|0"
-If enabled, try to verify the peer that we are communicating with.
-Note, if using OpenSSL, this currently only makes sure that the
-peer certificate is signed by one of the root certificates in the \s-1CA\s0
-database, but it does not validate that the certificate actually
-matches the host name we are trying to connect to. (With GnuTLS,
-the host name is validated as well.)
-.Sp
-This is disabled by default since it requires a \s-1CA\s0 database to be
-provided by the caller in many cases.
-.IP "\fBcert_file, cert=\fR\fIfilename\fR" 4
-.IX Item "cert_file, cert=filename"
-A file containing a certificate to use in the handshake with the peer.
-(When operating as server, in listen mode, this is more often required
-by the peer, while client certificates only are mandated in certain
-setups.)
-.IP "\fBkey_file, key=\fR\fIfilename\fR" 4
-.IX Item "key_file, key=filename"
-A file containing the private key for the certificate.
-.IP "\fBlisten=\fR\fI1|0\fR" 4
-.IX Item "listen=1|0"
-If enabled, listen for connections on the provided port, and assume
-the server role in the handshake instead of the client role.
-.PP
-Example command lines:
-.PP
-To create a \s-1TLS/SSL\s0 server that serves an input stream.
-.PP
-.Vb 1
-\&        ffmpeg -i <input> -f <format> tls://<hostname>:<port>?listen&cert=<server.crt>&key=<server.key>
-.Ve
-.PP
-To play back a stream from the \s-1TLS/SSL\s0 server using \fBffplay\fR:
-.PP
-.Vb 1
-\&        ffplay tls://<hostname>:<port>
-.Ve
-.Sh "udp"
-.IX Subsection "udp"
-User Datagram Protocol.
-.PP
-The required syntax for a \s-1UDP\s0 url is:
-.PP
-.Vb 1
-\&        udp://<hostname>:<port>[?<options>]
-.Ve
-.PP
-\&\fIoptions\fR contains a list of &\-separated options of the form \fIkey\fR=\fIval\fR.
-.PP
-In case threading is enabled on the system, a circular buffer is used
-to store the incoming data, which allows to reduce loss of data due to
-\&\s-1UDP\s0 socket buffer overruns. The \fIfifo_size\fR and
-\&\fIoverrun_nonfatal\fR options are related to this buffer.
-.PP
-The list of supported options follows.
-.IP "\fBbuffer_size=\fR\fIsize\fR" 4
-.IX Item "buffer_size=size"
-Set the \s-1UDP\s0 socket buffer size in bytes. This is used both for the
-receiving and the sending buffer size.
-.IP "\fBlocalport=\fR\fIport\fR" 4
-.IX Item "localport=port"
-Override the local \s-1UDP\s0 port to bind with.
-.IP "\fBlocaladdr=\fR\fIaddr\fR" 4
-.IX Item "localaddr=addr"
-Choose the local \s-1IP\s0 address. This is useful e.g. if sending multicast
-and the host has multiple interfaces, where the user can choose
-which interface to send on by specifying the \s-1IP\s0 address of that interface.
-.IP "\fBpkt_size=\fR\fIsize\fR" 4
-.IX Item "pkt_size=size"
-Set the size in bytes of \s-1UDP\s0 packets.
-.IP "\fBreuse=\fR\fI1|0\fR" 4
-.IX Item "reuse=1|0"
-Explicitly allow or disallow reusing \s-1UDP\s0 sockets.
-.IP "\fBttl=\fR\fIttl\fR" 4
-.IX Item "ttl=ttl"
-Set the time to live value (for multicast only).
-.IP "\fBconnect=\fR\fI1|0\fR" 4
-.IX Item "connect=1|0"
-Initialize the \s-1UDP\s0 socket with \f(CW\*(C`connect()\*(C'\fR. In this case, the
-destination address can't be changed with ff_udp_set_remote_url later.
-If the destination address isn't known at the start, this option can
-be specified in ff_udp_set_remote_url, too.
-This allows finding out the source address for the packets with getsockname,
-and makes writes return with \s-1AVERROR\s0(\s-1ECONNREFUSED\s0) if \*(L"destination
-unreachable\*(R" is received.
-For receiving, this gives the benefit of only receiving packets from
-the specified peer address/port.
-.IP "\fBsources=\fR\fIaddress\fR\fB[,\fR\fIaddress\fR\fB]\fR" 4
-.IX Item "sources=address[,address]"
-Only receive packets sent to the multicast group from one of the
-specified sender \s-1IP\s0 addresses.
-.IP "\fBblock=\fR\fIaddress\fR\fB[,\fR\fIaddress\fR\fB]\fR" 4
-.IX Item "block=address[,address]"
-Ignore packets sent to the multicast group from the specified
-sender \s-1IP\s0 addresses.
-.IP "\fBfifo_size=\fR\fIunits\fR" 4
-.IX Item "fifo_size=units"
-Set the \s-1UDP\s0 receiving circular buffer size, expressed as a number of
-packets with size of 188 bytes. If not specified defaults to 7*4096.
-.IP "\fBoverrun_nonfatal=\fR\fI1|0\fR" 4
-.IX Item "overrun_nonfatal=1|0"
-Survive in case of \s-1UDP\s0 receiving circular buffer overrun. Default
-value is 0.
-.IP "\fBtimeout=\fR\fImicroseconds\fR" 4
-.IX Item "timeout=microseconds"
-In read mode: if no data arrived in more than this time interval, raise error.
-.PP
-Some usage examples of the \s-1UDP\s0 protocol with \fBffmpeg\fR follow.
-.PP
-To stream over \s-1UDP\s0 to a remote endpoint:
-.PP
-.Vb 1
-\&        ffmpeg -i <input> -f <format> udp://<hostname>:<port>
-.Ve
-.PP
-To stream in mpegts format over \s-1UDP\s0 using 188 sized \s-1UDP\s0 packets, using a large input buffer:
-.PP
-.Vb 1
-\&        ffmpeg -i <input> -f mpegts udp://<hostname>:<port>?pkt_size=188&buffer_size=65535
-.Ve
-.PP
-To receive over \s-1UDP\s0 from a remote endpoint:
-.PP
-.Vb 1
-\&        ffmpeg -i udp://[<multicast-address>]:<port>
-.Ve
-.Sh "unix"
-.IX Subsection "unix"
-Unix local socket
-.PP
-The required syntax for a Unix socket \s-1URL\s0 is:
-.PP
-.Vb 1
-\&        unix://<filepath>
-.Ve
-.PP
-The following parameters can be set via command line options
-(or in code via \f(CW\*(C`AVOption\*(C'\fRs):
-.IP "\fBtimeout\fR" 4
-.IX Item "timeout"
-Timeout in ms.
-.IP "\fBlisten\fR" 4
-.IX Item "listen"
-Create the Unix socket in listening mode.
-.SH "SEE ALSO"
-.IX Header "SEE ALSO"
-\&\fIffmpeg\fR\|(1), \fIffplay\fR\|(1), \fIffprobe\fR\|(1), \fIffserver\fR\|(1), \fIlibavformat\fR\|(3)
-.SH "AUTHORS"
-.IX Header "AUTHORS"
-The FFmpeg developers.
-.PP
-For details about the authorship, see the Git history of the project
-(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
-\&\fBgit log\fR in the FFmpeg source directory, or browsing the
-online repository at <\fBhttp://source.ffmpeg.org\fR>.
-.PP
-Maintainers for the specific components are listed in the file
-\&\fI\s-1MAINTAINERS\s0\fR in the source code tree.
diff --git a/contrib/sdk/sources/ffmpeg/doc/ffmpeg-resampler.1 b/contrib/sdk/sources/ffmpeg/doc/ffmpeg-resampler.1
deleted file mode 100644
index ff08066a4e..0000000000
--- a/contrib/sdk/sources/ffmpeg/doc/ffmpeg-resampler.1
+++ /dev/null
@@ -1,410 +0,0 @@
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-.    ds D- D\h'-1'\(hy
-.    ds th \o'bp'
-.    ds Th \o'LP'
-.    ds ae ae
-.    ds Ae AE
-.\}
-.rm #[ #] #H #V #F C
-.\" ========================================================================
-.\"
-.IX Title "FFMPEG-RESAMPLER 1"
-.TH FFMPEG-RESAMPLER 1 "2013-12-14" " " " "
-.SH "NAME"
-ffmpeg\-resampler \- FFmpeg Resampler
-.SH "DESCRIPTION"
-.IX Header "DESCRIPTION"
-The FFmpeg resampler provides a high-level interface to the
-libswresample library audio resampling utilities. In particular it
-allows to perform audio resampling, audio channel layout rematrixing,
-and convert audio format and packing layout.
-.SH "RESAMPLER OPTIONS"
-.IX Header "RESAMPLER OPTIONS"
-The audio resampler supports the following named options.
-.PP
-Options may be set by specifying \-\fIoption\fR \fIvalue\fR in the
-FFmpeg tools, \fIoption\fR=\fIvalue\fR for the aresample filter,
-by setting the value explicitly in the
-\&\f(CW\*(C`SwrContext\*(C'\fR options or using the \fIlibavutil/opt.h\fR \s-1API\s0 for
-programmatic use.
-.IP "\fBich, in_channel_count\fR" 4
-.IX Item "ich, in_channel_count"
-Set the number of input channels. Default value is 0. Setting this
-value is not mandatory if the corresponding channel layout
-\&\fBin_channel_layout\fR is set.
-.IP "\fBoch, out_channel_count\fR" 4
-.IX Item "och, out_channel_count"
-Set the number of output channels. Default value is 0. Setting this
-value is not mandatory if the corresponding channel layout
-\&\fBout_channel_layout\fR is set.
-.IP "\fBuch, used_channel_count\fR" 4
-.IX Item "uch, used_channel_count"
-Set the number of used input channels. Default value is 0. This option is
-only used for special remapping.
-.IP "\fBisr, in_sample_rate\fR" 4
-.IX Item "isr, in_sample_rate"
-Set the input sample rate. Default value is 0.
-.IP "\fBosr, out_sample_rate\fR" 4
-.IX Item "osr, out_sample_rate"
-Set the output sample rate. Default value is 0.
-.IP "\fBisf, in_sample_fmt\fR" 4
-.IX Item "isf, in_sample_fmt"
-Specify the input sample format. It is set by default to \f(CW\*(C`none\*(C'\fR.
-.IP "\fBosf, out_sample_fmt\fR" 4
-.IX Item "osf, out_sample_fmt"
-Specify the output sample format. It is set by default to \f(CW\*(C`none\*(C'\fR.
-.IP "\fBtsf, internal_sample_fmt\fR" 4
-.IX Item "tsf, internal_sample_fmt"
-Set the internal sample format. Default value is \f(CW\*(C`none\*(C'\fR.
-This will automatically be chosen when it is not explicitly set.
-.IP "\fBicl, in_channel_layout\fR" 4
-.IX Item "icl, in_channel_layout"
-.PD 0
-.IP "\fBocl, out_channel_layout\fR" 4
-.IX Item "ocl, out_channel_layout"
-.PD
-Set the input/output channel layout.
-.Sp
-See the Channel Layout section in the \fIffmpeg\-utils\fR\|(1) manual
-for the required syntax.
-.IP "\fBclev, center_mix_level\fR" 4
-.IX Item "clev, center_mix_level"
-Set the center mix level. It is a value expressed in deciBel, and must be
-in the interval [\-32,32].
-.IP "\fBslev, surround_mix_level\fR" 4
-.IX Item "slev, surround_mix_level"
-Set the surround mix level. It is a value expressed in deciBel, and must
-be in the interval [\-32,32].
-.IP "\fBlfe_mix_level\fR" 4
-.IX Item "lfe_mix_level"
-Set \s-1LFE\s0 mix into non \s-1LFE\s0 level. It is used when there is a \s-1LFE\s0 input but no
-\&\s-1LFE\s0 output. It is a value expressed in deciBel, and must
-be in the interval [\-32,32].
-.IP "\fBrmvol, rematrix_volume\fR" 4
-.IX Item "rmvol, rematrix_volume"
-Set rematrix volume. Default value is 1.0.
-.IP "\fBrematrix_maxval\fR" 4
-.IX Item "rematrix_maxval"
-Set maximum output value for rematrixing.
-This can be used to prevent clipping vs. preventing volumn reduction
-A value of 1.0 prevents cliping.
-.IP "\fBflags, swr_flags\fR" 4
-.IX Item "flags, swr_flags"
-Set flags used by the converter. Default value is 0.
-.Sp
-It supports the following individual flags:
-.RS 4
-.IP "\fBres\fR" 4
-.IX Item "res"
-force resampling, this flag forces resampling to be used even when the
-input and output sample rates match.
-.RE
-.RS 4
-.RE
-.IP "\fBdither_scale\fR" 4
-.IX Item "dither_scale"
-Set the dither scale. Default value is 1.
-.IP "\fBdither_method\fR" 4
-.IX Item "dither_method"
-Set dither method. Default value is 0.
-.Sp
-Supported values:
-.RS 4
-.IP "\fBrectangular\fR" 4
-.IX Item "rectangular"
-select rectangular dither
-.IP "\fBtriangular\fR" 4
-.IX Item "triangular"
-select triangular dither
-.IP "\fBtriangular_hp\fR" 4
-.IX Item "triangular_hp"
-select triangular dither with high pass
-.IP "\fBlipshitz\fR" 4
-.IX Item "lipshitz"
-select lipshitz noise shaping dither
-.IP "\fBshibata\fR" 4
-.IX Item "shibata"
-select shibata noise shaping dither
-.IP "\fBlow_shibata\fR" 4
-.IX Item "low_shibata"
-select low shibata noise shaping dither
-.IP "\fBhigh_shibata\fR" 4
-.IX Item "high_shibata"
-select high shibata noise shaping dither
-.IP "\fBf_weighted\fR" 4
-.IX Item "f_weighted"
-select f\-weighted noise shaping dither
-.IP "\fBmodified_e_weighted\fR" 4
-.IX Item "modified_e_weighted"
-select modified-e-weighted noise shaping dither
-.IP "\fBimproved_e_weighted\fR" 4
-.IX Item "improved_e_weighted"
-select improved-e-weighted noise shaping dither
-.RE
-.RS 4
-.RE
-.IP "\fBresampler\fR" 4
-.IX Item "resampler"
-Set resampling engine. Default value is swr.
-.Sp
-Supported values:
-.RS 4
-.IP "\fBswr\fR" 4
-.IX Item "swr"
-select the native \s-1SW\s0 Resampler; filter options precision and cheby are not
-applicable in this case.
-.IP "\fBsoxr\fR" 4
-.IX Item "soxr"
-select the SoX Resampler (where available); compensation, and filter options
-filter_size, phase_shift, filter_type & kaiser_beta, are not applicable in this
-case.
-.RE
-.RS 4
-.RE
-.IP "\fBfilter_size\fR" 4
-.IX Item "filter_size"
-For swr only, set resampling filter size, default value is 32.
-.IP "\fBphase_shift\fR" 4
-.IX Item "phase_shift"
-For swr only, set resampling phase shift, default value is 10, and must be in
-the interval [0,30].
-.IP "\fBlinear_interp\fR" 4
-.IX Item "linear_interp"
-Use Linear Interpolation if set to 1, default value is 0.
-.IP "\fBcutoff\fR" 4
-.IX Item "cutoff"
-Set cutoff frequency (swr: 6dB point; soxr: 0dB point) ratio; must be a float
-value between 0 and 1.  Default value is 0.97 with swr, and 0.91 with soxr
-(which, with a sample-rate of 44100, preserves the entire audio band to 20kHz).
-.IP "\fBprecision\fR" 4
-.IX Item "precision"
-For soxr only, the precision in bits to which the resampled signal will be
-calculated.  The default value of 20 (which, with suitable dithering, is
-appropriate for a destination bit-depth of 16) gives SoX's 'High Quality'; a
-value of 28 gives SoX's 'Very High Quality'.
-.IP "\fBcheby\fR" 4
-.IX Item "cheby"
-For soxr only, selects passband rolloff none (Chebyshev) & higher-precision
-approximation for 'irrational' ratios. Default value is 0.
-.IP "\fBasync\fR" 4
-.IX Item "async"
-For swr only, simple 1 parameter audio sync to timestamps using stretching,
-squeezing, filling and trimming. Setting this to 1 will enable filling and
-trimming, larger values represent the maximum amount in samples that the data
-may be stretched or squeezed for each second.
-Default value is 0, thus no compensation is applied to make the samples match
-the audio timestamps.
-.IP "\fBfirst_pts\fR" 4
-.IX Item "first_pts"
-For swr only, assume the first pts should be this value. The time unit is 1 / sample rate.
-This allows for padding/trimming at the start of stream. By default, no
-assumption is made about the first frame's expected pts, so no padding or
-trimming is done. For example, this could be set to 0 to pad the beginning with
-silence if an audio stream starts after the video stream or to trim any samples
-with a negative pts due to encoder delay.
-.IP "\fBmin_comp\fR" 4
-.IX Item "min_comp"
-For swr only, set the minimum difference between timestamps and audio data (in
-seconds) to trigger stretching/squeezing/filling or trimming of the
-data to make it match the timestamps. The default is that
-stretching/squeezing/filling and trimming is disabled
-(\fBmin_comp\fR = \f(CW\*(C`FLT_MAX\*(C'\fR).
-.IP "\fBmin_hard_comp\fR" 4
-.IX Item "min_hard_comp"
-For swr only, set the minimum difference between timestamps and audio data (in
-seconds) to trigger adding/dropping samples to make it match the
-timestamps.  This option effectively is a threshold to select between
-hard (trim/fill) and soft (squeeze/stretch) compensation. Note that
-all compensation is by default disabled through \fBmin_comp\fR.
-The default is 0.1.
-.IP "\fBcomp_duration\fR" 4
-.IX Item "comp_duration"
-For swr only, set duration (in seconds) over which data is stretched/squeezed
-to make it match the timestamps. Must be a non-negative double float value,
-default value is 1.0.
-.IP "\fBmax_soft_comp\fR" 4
-.IX Item "max_soft_comp"
-For swr only, set maximum factor by which data is stretched/squeezed to make it
-match the timestamps. Must be a non-negative double float value, default value
-is 0.
-.IP "\fBmatrix_encoding\fR" 4
-.IX Item "matrix_encoding"
-Select matrixed stereo encoding.
-.Sp
-It accepts the following values:
-.RS 4
-.IP "\fBnone\fR" 4
-.IX Item "none"
-select none
-.IP "\fBdolby\fR" 4
-.IX Item "dolby"
-select Dolby
-.IP "\fBdplii\fR" 4
-.IX Item "dplii"
-select Dolby Pro Logic \s-1II\s0
-.RE
-.RS 4
-.Sp
-Default value is \f(CW\*(C`none\*(C'\fR.
-.RE
-.IP "\fBfilter_type\fR" 4
-.IX Item "filter_type"
-For swr only, select resampling filter type. This only affects resampling
-operations.
-.Sp
-It accepts the following values:
-.RS 4
-.IP "\fBcubic\fR" 4
-.IX Item "cubic"
-select cubic
-.IP "\fBblackman_nuttall\fR" 4
-.IX Item "blackman_nuttall"
-select Blackman Nuttall Windowed Sinc
-.IP "\fBkaiser\fR" 4
-.IX Item "kaiser"
-select Kaiser Windowed Sinc
-.RE
-.RS 4
-.RE
-.IP "\fBkaiser_beta\fR" 4
-.IX Item "kaiser_beta"
-For swr only, set Kaiser Window Beta value. Must be an integer in the
-interval [2,16], default value is 9.
-.IP "\fBoutput_sample_bits\fR" 4
-.IX Item "output_sample_bits"
-For swr only, set number of used output sample bits for dithering. Must be an integer in the
-interval [0,64], default value is 0, which means it's not used.
-.SH "SEE ALSO"
-.IX Header "SEE ALSO"
-\&\fIffmpeg\fR\|(1), \fIffplay\fR\|(1), \fIffprobe\fR\|(1), \fIffserver\fR\|(1), \fIlibswresample\fR\|(3)
-.SH "AUTHORS"
-.IX Header "AUTHORS"
-The FFmpeg developers.
-.PP
-For details about the authorship, see the Git history of the project
-(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
-\&\fBgit log\fR in the FFmpeg source directory, or browsing the
-online repository at <\fBhttp://source.ffmpeg.org\fR>.
-.PP
-Maintainers for the specific components are listed in the file
-\&\fI\s-1MAINTAINERS\s0\fR in the source code tree.
diff --git a/contrib/sdk/sources/ffmpeg/doc/ffmpeg-scaler.1 b/contrib/sdk/sources/ffmpeg/doc/ffmpeg-scaler.1
deleted file mode 100644
index cfc181dea1..0000000000
--- a/contrib/sdk/sources/ffmpeg/doc/ffmpeg-scaler.1
+++ /dev/null
@@ -1,268 +0,0 @@
-.\" Automatically generated by Pod::Man v1.37, Pod::Parser v1.32
-.\"
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-.\" ========================================================================
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-.PP
-\fB\\$1\fR
-.PP
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-.if t .sp .5v
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-.tr \(*W-|\(bv\*(Tr
-.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
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-.\" titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and index
-.\" entries marked with X<> in POD.  Of course, you'll have to process the
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-.if \nF \{\
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-.    ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
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-.    \" corrections for vroff
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-.    \" for low resolution devices (crt and lpr)
-.if \n(.H>23 .if \n(.V>19 \
-\{\
-.    ds : e
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-.    ds d- d\h'-1'\(ga
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-.rm #[ #] #H #V #F C
-.\" ========================================================================
-.\"
-.IX Title "FFMPEG-SCALER 1"
-.TH FFMPEG-SCALER 1 "2013-12-14" " " " "
-.SH "NAME"
-ffmpeg\-scaler \- FFmpeg video scaling and pixel format converter
-.SH "DESCRIPTION"
-.IX Header "DESCRIPTION"
-The FFmpeg rescaler provides a high-level interface to the libswscale
-library image conversion utilities. In particular it allows to perform
-image rescaling and pixel format conversion.
-.SH "SCALER OPTIONS"
-.IX Header "SCALER OPTIONS"
-The video scaler supports the following named options.
-.PP
-Options may be set by specifying \-\fIoption\fR \fIvalue\fR in the
-FFmpeg tools. For programmatic use, they can be set explicitly in the
-\&\f(CW\*(C`SwsContext\*(C'\fR options or through the \fIlibavutil/opt.h\fR \s-1API\s0.
-.IP "\fBsws_flags\fR" 4
-.IX Item "sws_flags"
-Set the scaler flags. This is also used to set the scaling
-algorithm. Only a single algorithm should be selected.
-.Sp
-It accepts the following values:
-.RS 4
-.IP "\fBfast_bilinear\fR" 4
-.IX Item "fast_bilinear"
-Select fast bilinear scaling algorithm.
-.IP "\fBbilinear\fR" 4
-.IX Item "bilinear"
-Select bilinear scaling algorithm.
-.IP "\fBbicubic\fR" 4
-.IX Item "bicubic"
-Select bicubic scaling algorithm.
-.IP "\fBexperimental\fR" 4
-.IX Item "experimental"
-Select experimental scaling algorithm.
-.IP "\fBneighbor\fR" 4
-.IX Item "neighbor"
-Select nearest neighbor rescaling algorithm.
-.IP "\fBarea\fR" 4
-.IX Item "area"
-Select averaging area rescaling algorithm.
-.IP "\fBbicubiclin\fR" 4
-.IX Item "bicubiclin"
-Select bicubic scaling algorithm for the luma component, bilinear for
-chroma components.
-.IP "\fBgauss\fR" 4
-.IX Item "gauss"
-Select Gaussian rescaling algorithm.
-.IP "\fBsinc\fR" 4
-.IX Item "sinc"
-Select sinc rescaling algorithm.
-.IP "\fBlanczos\fR" 4
-.IX Item "lanczos"
-Select lanczos rescaling algorithm.
-.IP "\fBspline\fR" 4
-.IX Item "spline"
-Select natural bicubic spline rescaling algorithm.
-.IP "\fBprint_info\fR" 4
-.IX Item "print_info"
-Enable printing/debug logging.
-.IP "\fBaccurate_rnd\fR" 4
-.IX Item "accurate_rnd"
-Enable accurate rounding.
-.IP "\fBfull_chroma_int\fR" 4
-.IX Item "full_chroma_int"
-Enable full chroma interpolation.
-.IP "\fBfull_chroma_inp\fR" 4
-.IX Item "full_chroma_inp"
-Select full chroma input.
-.IP "\fBbitexact\fR" 4
-.IX Item "bitexact"
-Enable bitexact output.
-.RE
-.RS 4
-.RE
-.IP "\fBsrcw\fR" 4
-.IX Item "srcw"
-Set source width.
-.IP "\fBsrch\fR" 4
-.IX Item "srch"
-Set source height.
-.IP "\fBdstw\fR" 4
-.IX Item "dstw"
-Set destination width.
-.IP "\fBdsth\fR" 4
-.IX Item "dsth"
-Set destination height.
-.IP "\fBsrc_format\fR" 4
-.IX Item "src_format"
-Set source pixel format (must be expressed as an integer).
-.IP "\fBdst_format\fR" 4
-.IX Item "dst_format"
-Set destination pixel format (must be expressed as an integer).
-.IP "\fBsrc_range\fR" 4
-.IX Item "src_range"
-Select source range.
-.IP "\fBdst_range\fR" 4
-.IX Item "dst_range"
-Select destination range.
-.IP "\fBparam0, param1\fR" 4
-.IX Item "param0, param1"
-Set scaling algorithm parameters. The specified values are specific of
-some scaling algorithms and ignored by others. The specified values
-are floating point number values.
-.IP "\fBsws_dither\fR" 4
-.IX Item "sws_dither"
-Set the dithering algorithm. Accepts one of the following
-values. Default value is \fBauto\fR.
-.RS 4
-.IP "\fBauto\fR" 4
-.IX Item "auto"
-automatic choice
-.IP "\fBnone\fR" 4
-.IX Item "none"
-no dithering
-.IP "\fBbayer\fR" 4
-.IX Item "bayer"
-bayer dither
-.IP "\fBed\fR" 4
-.IX Item "ed"
-error diffusion dither
-.RE
-.RS 4
-.RE
-.SH "SEE ALSO"
-.IX Header "SEE ALSO"
-\&\fIffmpeg\fR\|(1), \fIffplay\fR\|(1), \fIffprobe\fR\|(1), \fIffserver\fR\|(1), \fIlibswscale\fR\|(3)
-.SH "AUTHORS"
-.IX Header "AUTHORS"
-The FFmpeg developers.
-.PP
-For details about the authorship, see the Git history of the project
-(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
-\&\fBgit log\fR in the FFmpeg source directory, or browsing the
-online repository at <\fBhttp://source.ffmpeg.org\fR>.
-.PP
-Maintainers for the specific components are listed in the file
-\&\fI\s-1MAINTAINERS\s0\fR in the source code tree.
diff --git a/contrib/sdk/sources/ffmpeg/doc/ffmpeg-utils.1 b/contrib/sdk/sources/ffmpeg/doc/ffmpeg-utils.1
deleted file mode 100644
index a9e506b4eb..0000000000
--- a/contrib/sdk/sources/ffmpeg/doc/ffmpeg-utils.1
+++ /dev/null
@@ -1,1445 +0,0 @@
-.\" Automatically generated by Pod::Man v1.37, Pod::Parser v1.32
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-.br
-.if t .Sp
-.ne 5
-.PP
-\fB\\$1\fR
-.PP
-..
-.de Sp \" Vertical space (when we can't use .PP)
-.if t .sp .5v
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-.\" real vertical bar.  \*(C+ will give a nicer C++.  Capital omega is used to
-.\" do unbreakable dashes and therefore won't be available.  \*(C` and \*(C'
-.\" expand to `' in nroff, nothing in troff, for use with C<>.
-.tr \(*W-|\(bv\*(Tr
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-.    if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
-.    if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\"  diablo 12 pitch
-.    ds L" ""
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-'br\}
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-.    ds -- \|\(em\|
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-.\"
-.\" If the F register is turned on, we'll generate index entries on stderr for
-.\" titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and index
-.\" entries marked with X<> in POD.  Of course, you'll have to process the
-.\" output yourself in some meaningful fashion.
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-.    de IX
-.    tm Index:\\$1\t\\n%\t"\\$2"
-..
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-.\}
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-.    ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
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-.    ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
-.\}
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-.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
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-.rm #[ #] #H #V #F C
-.\" ========================================================================
-.\"
-.IX Title "FFMPEG-UTILS 1"
-.TH FFMPEG-UTILS 1 "2013-12-14" " " " "
-.SH "NAME"
-ffmpeg\-utils \- FFmpeg utilities
-.SH "DESCRIPTION"
-.IX Header "DESCRIPTION"
-This document describes some generic features and utilities provided
-by the libavutil library.
-.SH "SYNTAX"
-.IX Header "SYNTAX"
-This section documents the syntax and formats employed by the FFmpeg
-libraries and tools.
-.Sh "Quoting and escaping"
-.IX Subsection "Quoting and escaping"
-FFmpeg adopts the following quoting and escaping mechanism, unless
-explicitly specified. The following rules are applied:
-.IP "\(bu" 4
-\&\f(CW\*(C`'\*(C'\fR and \f(CW\*(C`\e\*(C'\fR are special characters (respectively used for
-quoting and escaping). In addition to them, there might be other
-special characters depending on the specific syntax where the escaping
-and quoting are employed.
-.IP "\(bu" 4
-A special character is escaped by prefixing it with a '\e'.
-.IP "\(bu" 4
-All characters enclosed between '' are included literally in the
-parsed string. The quote character \f(CW\*(C`'\*(C'\fR itself cannot be quoted,
-so you may need to close the quote and escape it.
-.IP "\(bu" 4
-Leading and trailing whitespaces, unless escaped or quoted, are
-removed from the parsed string.
-.PP
-Note that you may need to add a second level of escaping when using
-the command line or a script, which depends on the syntax of the
-adopted shell language.
-.PP
-The function \f(CW\*(C`av_get_token\*(C'\fR defined in
-\&\fIlibavutil/avstring.h\fR can be used to parse a token quoted or
-escaped according to the rules defined above.
-.PP
-The tool \fItools/ffescape\fR in the FFmpeg source tree can be used
-to automatically quote or escape a string in a script.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.IP "\(bu" 4
-Escape the string \f(CW\*(C`Crime d'Amour\*(C'\fR containing the \f(CW\*(C`'\*(C'\fR special
-character:
-.Sp
-.Vb 1
-\&        Crime d\e'Amour
-.Ve
-.IP "\(bu" 4
-The string above contains a quote, so the \f(CW\*(C`'\*(C'\fR needs to be escaped
-when quoting it:
-.Sp
-.Vb 1
-\&        'Crime d'\e''Amour'
-.Ve
-.IP "\(bu" 4
-Include leading or trailing whitespaces using quoting:
-.Sp
-.Vb 1
-\&        '  this string starts and ends with whitespaces  '
-.Ve
-.IP "\(bu" 4
-Escaping and quoting can be mixed together:
-.Sp
-.Vb 1
-\&        ' The string '\e'string\e'' is a string '
-.Ve
-.IP "\(bu" 4
-To include a literal \f(CW\*(C`\e\*(C'\fR you can use either escaping or quoting:
-.Sp
-.Vb 1
-\&        'c:\efoo' can be written as c:\e\efoo
-.Ve
-.Sh "Date"
-.IX Subsection "Date"
-The accepted syntax is:
-.PP
-.Vb 2
-\&        [(YYYY-MM-DD|YYYYMMDD)[T|t| ]]((HH:MM:SS[.m...]]])|(HHMMSS[.m...]]]))[Z]
-\&        now
-.Ve
-.PP
-If the value is \*(L"now\*(R" it takes the current time.
-.PP
-Time is local time unless Z is appended, in which case it is
-interpreted as \s-1UTC\s0.
-If the year-month-day part is not specified it takes the current
-year\-month\-day.
-.Sh "Time duration"
-.IX Subsection "Time duration"
-There are two accepted syntaxes for expressing time duration.
-.PP
-.Vb 1
-\&        [-][<HH>:]<MM>:<SS>[.<m>...]
-.Ve
-.PP
-\&\fI\s-1HH\s0\fR expresses the number of hours, \fI\s-1MM\s0\fR the number of minutes
-for a maximum of 2 digits, and \fI\s-1SS\s0\fR the number of seconds for a
-maximum of 2 digits. The \fIm\fR at the end expresses decimal value for
-\&\fI\s-1SS\s0\fR.
-.PP
-\&\fIor\fR
-.PP
-.Vb 1
-\&        [-]<S>+[.<m>...]
-.Ve
-.PP
-\&\fIS\fR expresses the number of seconds, with the optional decimal part
-\&\fIm\fR.
-.PP
-In both expressions, the optional \fB\-\fR indicates negative duration.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-The following examples are all valid time duration:
-.IP "\fB55\fR" 4
-.IX Item "55"
-55 seconds
-.IP "\fB12:03:45\fR" 4
-.IX Item "12:03:45"
-12 hours, 03 minutes and 45 seconds
-.IP "\fB23.189\fR" 4
-.IX Item "23.189"
-23.189 seconds
-.Sh "Video size"
-.IX Subsection "Video size"
-Specify the size of the sourced video, it may be a string of the form
-\&\fIwidth\fRx\fIheight\fR, or the name of a size abbreviation.
-.PP
-The following abbreviations are recognized:
-.IP "\fBntsc\fR" 4
-.IX Item "ntsc"
-720x480
-.IP "\fBpal\fR" 4
-.IX Item "pal"
-720x576
-.IP "\fBqntsc\fR" 4
-.IX Item "qntsc"
-352x240
-.IP "\fBqpal\fR" 4
-.IX Item "qpal"
-352x288
-.IP "\fBsntsc\fR" 4
-.IX Item "sntsc"
-640x480
-.IP "\fBspal\fR" 4
-.IX Item "spal"
-768x576
-.IP "\fBfilm\fR" 4
-.IX Item "film"
-352x240
-.IP "\fBntsc-film\fR" 4
-.IX Item "ntsc-film"
-352x240
-.IP "\fBsqcif\fR" 4
-.IX Item "sqcif"
-128x96
-.IP "\fBqcif\fR" 4
-.IX Item "qcif"
-176x144
-.IP "\fBcif\fR" 4
-.IX Item "cif"
-352x288
-.IP "\fB4cif\fR" 4
-.IX Item "4cif"
-704x576
-.IP "\fB16cif\fR" 4
-.IX Item "16cif"
-1408x1152
-.IP "\fBqqvga\fR" 4
-.IX Item "qqvga"
-160x120
-.IP "\fBqvga\fR" 4
-.IX Item "qvga"
-320x240
-.IP "\fBvga\fR" 4
-.IX Item "vga"
-640x480
-.IP "\fBsvga\fR" 4
-.IX Item "svga"
-800x600
-.IP "\fBxga\fR" 4
-.IX Item "xga"
-1024x768
-.IP "\fBuxga\fR" 4
-.IX Item "uxga"
-1600x1200
-.IP "\fBqxga\fR" 4
-.IX Item "qxga"
-2048x1536
-.IP "\fBsxga\fR" 4
-.IX Item "sxga"
-1280x1024
-.IP "\fBqsxga\fR" 4
-.IX Item "qsxga"
-2560x2048
-.IP "\fBhsxga\fR" 4
-.IX Item "hsxga"
-5120x4096
-.IP "\fBwvga\fR" 4
-.IX Item "wvga"
-852x480
-.IP "\fBwxga\fR" 4
-.IX Item "wxga"
-1366x768
-.IP "\fBwsxga\fR" 4
-.IX Item "wsxga"
-1600x1024
-.IP "\fBwuxga\fR" 4
-.IX Item "wuxga"
-1920x1200
-.IP "\fBwoxga\fR" 4
-.IX Item "woxga"
-2560x1600
-.IP "\fBwqsxga\fR" 4
-.IX Item "wqsxga"
-3200x2048
-.IP "\fBwquxga\fR" 4
-.IX Item "wquxga"
-3840x2400
-.IP "\fBwhsxga\fR" 4
-.IX Item "whsxga"
-6400x4096
-.IP "\fBwhuxga\fR" 4
-.IX Item "whuxga"
-7680x4800
-.IP "\fBcga\fR" 4
-.IX Item "cga"
-320x200
-.IP "\fBega\fR" 4
-.IX Item "ega"
-640x350
-.IP "\fBhd480\fR" 4
-.IX Item "hd480"
-852x480
-.IP "\fBhd720\fR" 4
-.IX Item "hd720"
-1280x720
-.IP "\fBhd1080\fR" 4
-.IX Item "hd1080"
-1920x1080
-.IP "\fB2k\fR" 4
-.IX Item "2k"
-2048x1080
-.IP "\fB2kflat\fR" 4
-.IX Item "2kflat"
-1998x1080
-.IP "\fB2kscope\fR" 4
-.IX Item "2kscope"
-2048x858
-.IP "\fB4k\fR" 4
-.IX Item "4k"
-4096x2160
-.IP "\fB4kflat\fR" 4
-.IX Item "4kflat"
-3996x2160
-.IP "\fB4kscope\fR" 4
-.IX Item "4kscope"
-4096x1716
-.IP "\fBnhd\fR" 4
-.IX Item "nhd"
-640x360
-.IP "\fBhqvga\fR" 4
-.IX Item "hqvga"
-240x160
-.IP "\fBwqvga\fR" 4
-.IX Item "wqvga"
-400x240
-.IP "\fBfwqvga\fR" 4
-.IX Item "fwqvga"
-432x240
-.IP "\fBhvga\fR" 4
-.IX Item "hvga"
-480x320
-.IP "\fBqhd\fR" 4
-.IX Item "qhd"
-960x540
-.Sh "Video rate"
-.IX Subsection "Video rate"
-Specify the frame rate of a video, expressed as the number of frames
-generated per second. It has to be a string in the format
-\&\fIframe_rate_num\fR/\fIframe_rate_den\fR, an integer number, a float
-number or a valid video frame rate abbreviation.
-.PP
-The following abbreviations are recognized:
-.IP "\fBntsc\fR" 4
-.IX Item "ntsc"
-30000/1001
-.IP "\fBpal\fR" 4
-.IX Item "pal"
-25/1
-.IP "\fBqntsc\fR" 4
-.IX Item "qntsc"
-30000/1001
-.IP "\fBqpal\fR" 4
-.IX Item "qpal"
-25/1
-.IP "\fBsntsc\fR" 4
-.IX Item "sntsc"
-30000/1001
-.IP "\fBspal\fR" 4
-.IX Item "spal"
-25/1
-.IP "\fBfilm\fR" 4
-.IX Item "film"
-24/1
-.IP "\fBntsc-film\fR" 4
-.IX Item "ntsc-film"
-24000/1001
-.Sh "Ratio"
-.IX Subsection "Ratio"
-A ratio can be expressed as an expression, or in the form
-\&\fInumerator\fR:\fIdenominator\fR.
-.PP
-Note that a ratio with infinite (1/0) or negative value is
-considered valid, so you should check on the returned value if you
-want to exclude those values.
-.PP
-The undefined value can be expressed using the \*(L"0:0\*(R" string.
-.Sh "Color"
-.IX Subsection "Color"
-It can be the name of a color as defined below (case insensitive match) or a
-\&\f(CW\*(C`[0x|#]RRGGBB[AA]\*(C'\fR sequence, possibly followed by @ and a string
-representing the alpha component.
-.PP
-The alpha component may be a string composed by \*(L"0x\*(R" followed by an
-hexadecimal number or a decimal number between 0.0 and 1.0, which
-represents the opacity value (\fB0x00\fR or \fB0.0\fR means completely
-transparent, \fB0xff\fR or \fB1.0\fR completely opaque). If the alpha
-component is not specified then \fB0xff\fR is assumed.
-.PP
-The string \fBrandom\fR will result in a random color.
-.PP
-The following names of colors are recognized:
-.IP "\fBAliceBlue\fR" 4
-.IX Item "AliceBlue"
-0xF0F8FF
-.IP "\fBAntiqueWhite\fR" 4
-.IX Item "AntiqueWhite"
-0xFAEBD7
-.IP "\fBAqua\fR" 4
-.IX Item "Aqua"
-0x00FFFF
-.IP "\fBAquamarine\fR" 4
-.IX Item "Aquamarine"
-0x7FFFD4
-.IP "\fBAzure\fR" 4
-.IX Item "Azure"
-0xF0FFFF
-.IP "\fBBeige\fR" 4
-.IX Item "Beige"
-0xF5F5DC
-.IP "\fBBisque\fR" 4
-.IX Item "Bisque"
-0xFFE4C4
-.IP "\fBBlack\fR" 4
-.IX Item "Black"
-0x000000
-.IP "\fBBlanchedAlmond\fR" 4
-.IX Item "BlanchedAlmond"
-0xFFEBCD
-.IP "\fBBlue\fR" 4
-.IX Item "Blue"
-0x0000FF
-.IP "\fBBlueViolet\fR" 4
-.IX Item "BlueViolet"
-0x8A2BE2
-.IP "\fBBrown\fR" 4
-.IX Item "Brown"
-0xA52A2A
-.IP "\fBBurlyWood\fR" 4
-.IX Item "BurlyWood"
-0xDEB887
-.IP "\fBCadetBlue\fR" 4
-.IX Item "CadetBlue"
-0x5F9EA0
-.IP "\fBChartreuse\fR" 4
-.IX Item "Chartreuse"
-0x7FFF00
-.IP "\fBChocolate\fR" 4
-.IX Item "Chocolate"
-0xD2691E
-.IP "\fBCoral\fR" 4
-.IX Item "Coral"
-0xFF7F50
-.IP "\fBCornflowerBlue\fR" 4
-.IX Item "CornflowerBlue"
-0x6495ED
-.IP "\fBCornsilk\fR" 4
-.IX Item "Cornsilk"
-0xFFF8DC
-.IP "\fBCrimson\fR" 4
-.IX Item "Crimson"
-0xDC143C
-.IP "\fBCyan\fR" 4
-.IX Item "Cyan"
-0x00FFFF
-.IP "\fBDarkBlue\fR" 4
-.IX Item "DarkBlue"
-0x00008B
-.IP "\fBDarkCyan\fR" 4
-.IX Item "DarkCyan"
-0x008B8B
-.IP "\fBDarkGoldenRod\fR" 4
-.IX Item "DarkGoldenRod"
-0xB8860B
-.IP "\fBDarkGray\fR" 4
-.IX Item "DarkGray"
-0xA9A9A9
-.IP "\fBDarkGreen\fR" 4
-.IX Item "DarkGreen"
-0x006400
-.IP "\fBDarkKhaki\fR" 4
-.IX Item "DarkKhaki"
-0xBDB76B
-.IP "\fBDarkMagenta\fR" 4
-.IX Item "DarkMagenta"
-0x8B008B
-.IP "\fBDarkOliveGreen\fR" 4
-.IX Item "DarkOliveGreen"
-0x556B2F
-.IP "\fBDarkorange\fR" 4
-.IX Item "Darkorange"
-0xFF8C00
-.IP "\fBDarkOrchid\fR" 4
-.IX Item "DarkOrchid"
-0x9932CC
-.IP "\fBDarkRed\fR" 4
-.IX Item "DarkRed"
-0x8B0000
-.IP "\fBDarkSalmon\fR" 4
-.IX Item "DarkSalmon"
-0xE9967A
-.IP "\fBDarkSeaGreen\fR" 4
-.IX Item "DarkSeaGreen"
-0x8FBC8F
-.IP "\fBDarkSlateBlue\fR" 4
-.IX Item "DarkSlateBlue"
-0x483D8B
-.IP "\fBDarkSlateGray\fR" 4
-.IX Item "DarkSlateGray"
-0x2F4F4F
-.IP "\fBDarkTurquoise\fR" 4
-.IX Item "DarkTurquoise"
-0x00CED1
-.IP "\fBDarkViolet\fR" 4
-.IX Item "DarkViolet"
-0x9400D3
-.IP "\fBDeepPink\fR" 4
-.IX Item "DeepPink"
-0xFF1493
-.IP "\fBDeepSkyBlue\fR" 4
-.IX Item "DeepSkyBlue"
-0x00BFFF
-.IP "\fBDimGray\fR" 4
-.IX Item "DimGray"
-0x696969
-.IP "\fBDodgerBlue\fR" 4
-.IX Item "DodgerBlue"
-0x1E90FF
-.IP "\fBFireBrick\fR" 4
-.IX Item "FireBrick"
-0xB22222
-.IP "\fBFloralWhite\fR" 4
-.IX Item "FloralWhite"
-0xFFFAF0
-.IP "\fBForestGreen\fR" 4
-.IX Item "ForestGreen"
-0x228B22
-.IP "\fBFuchsia\fR" 4
-.IX Item "Fuchsia"
-0xFF00FF
-.IP "\fBGainsboro\fR" 4
-.IX Item "Gainsboro"
-0xDCDCDC
-.IP "\fBGhostWhite\fR" 4
-.IX Item "GhostWhite"
-0xF8F8FF
-.IP "\fBGold\fR" 4
-.IX Item "Gold"
-0xFFD700
-.IP "\fBGoldenRod\fR" 4
-.IX Item "GoldenRod"
-0xDAA520
-.IP "\fBGray\fR" 4
-.IX Item "Gray"
-0x808080
-.IP "\fBGreen\fR" 4
-.IX Item "Green"
-0x008000
-.IP "\fBGreenYellow\fR" 4
-.IX Item "GreenYellow"
-0xADFF2F
-.IP "\fBHoneyDew\fR" 4
-.IX Item "HoneyDew"
-0xF0FFF0
-.IP "\fBHotPink\fR" 4
-.IX Item "HotPink"
-0xFF69B4
-.IP "\fBIndianRed\fR" 4
-.IX Item "IndianRed"
-0xCD5C5C
-.IP "\fBIndigo\fR" 4
-.IX Item "Indigo"
-0x4B0082
-.IP "\fBIvory\fR" 4
-.IX Item "Ivory"
-0xFFFFF0
-.IP "\fBKhaki\fR" 4
-.IX Item "Khaki"
-0xF0E68C
-.IP "\fBLavender\fR" 4
-.IX Item "Lavender"
-0xE6E6FA
-.IP "\fBLavenderBlush\fR" 4
-.IX Item "LavenderBlush"
-0xFFF0F5
-.IP "\fBLawnGreen\fR" 4
-.IX Item "LawnGreen"
-0x7CFC00
-.IP "\fBLemonChiffon\fR" 4
-.IX Item "LemonChiffon"
-0xFFFACD
-.IP "\fBLightBlue\fR" 4
-.IX Item "LightBlue"
-0xADD8E6
-.IP "\fBLightCoral\fR" 4
-.IX Item "LightCoral"
-0xF08080
-.IP "\fBLightCyan\fR" 4
-.IX Item "LightCyan"
-0xE0FFFF
-.IP "\fBLightGoldenRodYellow\fR" 4
-.IX Item "LightGoldenRodYellow"
-0xFAFAD2
-.IP "\fBLightGreen\fR" 4
-.IX Item "LightGreen"
-0x90EE90
-.IP "\fBLightGrey\fR" 4
-.IX Item "LightGrey"
-0xD3D3D3
-.IP "\fBLightPink\fR" 4
-.IX Item "LightPink"
-0xFFB6C1
-.IP "\fBLightSalmon\fR" 4
-.IX Item "LightSalmon"
-0xFFA07A
-.IP "\fBLightSeaGreen\fR" 4
-.IX Item "LightSeaGreen"
-0x20B2AA
-.IP "\fBLightSkyBlue\fR" 4
-.IX Item "LightSkyBlue"
-0x87CEFA
-.IP "\fBLightSlateGray\fR" 4
-.IX Item "LightSlateGray"
-0x778899
-.IP "\fBLightSteelBlue\fR" 4
-.IX Item "LightSteelBlue"
-0xB0C4DE
-.IP "\fBLightYellow\fR" 4
-.IX Item "LightYellow"
-0xFFFFE0
-.IP "\fBLime\fR" 4
-.IX Item "Lime"
-0x00FF00
-.IP "\fBLimeGreen\fR" 4
-.IX Item "LimeGreen"
-0x32CD32
-.IP "\fBLinen\fR" 4
-.IX Item "Linen"
-0xFAF0E6
-.IP "\fBMagenta\fR" 4
-.IX Item "Magenta"
-0xFF00FF
-.IP "\fBMaroon\fR" 4
-.IX Item "Maroon"
-0x800000
-.IP "\fBMediumAquaMarine\fR" 4
-.IX Item "MediumAquaMarine"
-0x66CDAA
-.IP "\fBMediumBlue\fR" 4
-.IX Item "MediumBlue"
-0x0000CD
-.IP "\fBMediumOrchid\fR" 4
-.IX Item "MediumOrchid"
-0xBA55D3
-.IP "\fBMediumPurple\fR" 4
-.IX Item "MediumPurple"
-0x9370D8
-.IP "\fBMediumSeaGreen\fR" 4
-.IX Item "MediumSeaGreen"
-0x3CB371
-.IP "\fBMediumSlateBlue\fR" 4
-.IX Item "MediumSlateBlue"
-0x7B68EE
-.IP "\fBMediumSpringGreen\fR" 4
-.IX Item "MediumSpringGreen"
-0x00FA9A
-.IP "\fBMediumTurquoise\fR" 4
-.IX Item "MediumTurquoise"
-0x48D1CC
-.IP "\fBMediumVioletRed\fR" 4
-.IX Item "MediumVioletRed"
-0xC71585
-.IP "\fBMidnightBlue\fR" 4
-.IX Item "MidnightBlue"
-0x191970
-.IP "\fBMintCream\fR" 4
-.IX Item "MintCream"
-0xF5FFFA
-.IP "\fBMistyRose\fR" 4
-.IX Item "MistyRose"
-0xFFE4E1
-.IP "\fBMoccasin\fR" 4
-.IX Item "Moccasin"
-0xFFE4B5
-.IP "\fBNavajoWhite\fR" 4
-.IX Item "NavajoWhite"
-0xFFDEAD
-.IP "\fBNavy\fR" 4
-.IX Item "Navy"
-0x000080
-.IP "\fBOldLace\fR" 4
-.IX Item "OldLace"
-0xFDF5E6
-.IP "\fBOlive\fR" 4
-.IX Item "Olive"
-0x808000
-.IP "\fBOliveDrab\fR" 4
-.IX Item "OliveDrab"
-0x6B8E23
-.IP "\fBOrange\fR" 4
-.IX Item "Orange"
-0xFFA500
-.IP "\fBOrangeRed\fR" 4
-.IX Item "OrangeRed"
-0xFF4500
-.IP "\fBOrchid\fR" 4
-.IX Item "Orchid"
-0xDA70D6
-.IP "\fBPaleGoldenRod\fR" 4
-.IX Item "PaleGoldenRod"
-0xEEE8AA
-.IP "\fBPaleGreen\fR" 4
-.IX Item "PaleGreen"
-0x98FB98
-.IP "\fBPaleTurquoise\fR" 4
-.IX Item "PaleTurquoise"
-0xAFEEEE
-.IP "\fBPaleVioletRed\fR" 4
-.IX Item "PaleVioletRed"
-0xD87093
-.IP "\fBPapayaWhip\fR" 4
-.IX Item "PapayaWhip"
-0xFFEFD5
-.IP "\fBPeachPuff\fR" 4
-.IX Item "PeachPuff"
-0xFFDAB9
-.IP "\fBPeru\fR" 4
-.IX Item "Peru"
-0xCD853F
-.IP "\fBPink\fR" 4
-.IX Item "Pink"
-0xFFC0CB
-.IP "\fBPlum\fR" 4
-.IX Item "Plum"
-0xDDA0DD
-.IP "\fBPowderBlue\fR" 4
-.IX Item "PowderBlue"
-0xB0E0E6
-.IP "\fBPurple\fR" 4
-.IX Item "Purple"
-0x800080
-.IP "\fBRed\fR" 4
-.IX Item "Red"
-0xFF0000
-.IP "\fBRosyBrown\fR" 4
-.IX Item "RosyBrown"
-0xBC8F8F
-.IP "\fBRoyalBlue\fR" 4
-.IX Item "RoyalBlue"
-0x4169E1
-.IP "\fBSaddleBrown\fR" 4
-.IX Item "SaddleBrown"
-0x8B4513
-.IP "\fBSalmon\fR" 4
-.IX Item "Salmon"
-0xFA8072
-.IP "\fBSandyBrown\fR" 4
-.IX Item "SandyBrown"
-0xF4A460
-.IP "\fBSeaGreen\fR" 4
-.IX Item "SeaGreen"
-0x2E8B57
-.IP "\fBSeaShell\fR" 4
-.IX Item "SeaShell"
-0xFFF5EE
-.IP "\fBSienna\fR" 4
-.IX Item "Sienna"
-0xA0522D
-.IP "\fBSilver\fR" 4
-.IX Item "Silver"
-0xC0C0C0
-.IP "\fBSkyBlue\fR" 4
-.IX Item "SkyBlue"
-0x87CEEB
-.IP "\fBSlateBlue\fR" 4
-.IX Item "SlateBlue"
-0x6A5ACD
-.IP "\fBSlateGray\fR" 4
-.IX Item "SlateGray"
-0x708090
-.IP "\fBSnow\fR" 4
-.IX Item "Snow"
-0xFFFAFA
-.IP "\fBSpringGreen\fR" 4
-.IX Item "SpringGreen"
-0x00FF7F
-.IP "\fBSteelBlue\fR" 4
-.IX Item "SteelBlue"
-0x4682B4
-.IP "\fBTan\fR" 4
-.IX Item "Tan"
-0xD2B48C
-.IP "\fBTeal\fR" 4
-.IX Item "Teal"
-0x008080
-.IP "\fBThistle\fR" 4
-.IX Item "Thistle"
-0xD8BFD8
-.IP "\fBTomato\fR" 4
-.IX Item "Tomato"
-0xFF6347
-.IP "\fBTurquoise\fR" 4
-.IX Item "Turquoise"
-0x40E0D0
-.IP "\fBViolet\fR" 4
-.IX Item "Violet"
-0xEE82EE
-.IP "\fBWheat\fR" 4
-.IX Item "Wheat"
-0xF5DEB3
-.IP "\fBWhite\fR" 4
-.IX Item "White"
-0xFFFFFF
-.IP "\fBWhiteSmoke\fR" 4
-.IX Item "WhiteSmoke"
-0xF5F5F5
-.IP "\fBYellow\fR" 4
-.IX Item "Yellow"
-0xFFFF00
-.IP "\fBYellowGreen\fR" 4
-.IX Item "YellowGreen"
-0x9ACD32
-.Sh "Channel Layout"
-.IX Subsection "Channel Layout"
-A channel layout specifies the spatial disposition of the channels in
-a multi-channel audio stream. To specify a channel layout, FFmpeg
-makes use of a special syntax.
-.PP
-Individual channels are identified by an id, as given by the table
-below:
-.IP "\fB\s-1FL\s0\fR" 4
-.IX Item "FL"
-front left
-.IP "\fB\s-1FR\s0\fR" 4
-.IX Item "FR"
-front right
-.IP "\fB\s-1FC\s0\fR" 4
-.IX Item "FC"
-front center
-.IP "\fB\s-1LFE\s0\fR" 4
-.IX Item "LFE"
-low frequency
-.IP "\fB\s-1BL\s0\fR" 4
-.IX Item "BL"
-back left
-.IP "\fB\s-1BR\s0\fR" 4
-.IX Item "BR"
-back right
-.IP "\fB\s-1FLC\s0\fR" 4
-.IX Item "FLC"
-front left-of-center
-.IP "\fB\s-1FRC\s0\fR" 4
-.IX Item "FRC"
-front right-of-center
-.IP "\fB\s-1BC\s0\fR" 4
-.IX Item "BC"
-back center
-.IP "\fB\s-1SL\s0\fR" 4
-.IX Item "SL"
-side left
-.IP "\fB\s-1SR\s0\fR" 4
-.IX Item "SR"
-side right
-.IP "\fB\s-1TC\s0\fR" 4
-.IX Item "TC"
-top center
-.IP "\fB\s-1TFL\s0\fR" 4
-.IX Item "TFL"
-top front left
-.IP "\fB\s-1TFC\s0\fR" 4
-.IX Item "TFC"
-top front center
-.IP "\fB\s-1TFR\s0\fR" 4
-.IX Item "TFR"
-top front right
-.IP "\fB\s-1TBL\s0\fR" 4
-.IX Item "TBL"
-top back left
-.IP "\fB\s-1TBC\s0\fR" 4
-.IX Item "TBC"
-top back center
-.IP "\fB\s-1TBR\s0\fR" 4
-.IX Item "TBR"
-top back right
-.IP "\fB\s-1DL\s0\fR" 4
-.IX Item "DL"
-downmix left
-.IP "\fB\s-1DR\s0\fR" 4
-.IX Item "DR"
-downmix right
-.IP "\fB\s-1WL\s0\fR" 4
-.IX Item "WL"
-wide left
-.IP "\fB\s-1WR\s0\fR" 4
-.IX Item "WR"
-wide right
-.IP "\fB\s-1SDL\s0\fR" 4
-.IX Item "SDL"
-surround direct left
-.IP "\fB\s-1SDR\s0\fR" 4
-.IX Item "SDR"
-surround direct right
-.IP "\fB\s-1LFE2\s0\fR" 4
-.IX Item "LFE2"
-low frequency 2
-.PP
-Standard channel layout compositions can be specified by using the
-following identifiers:
-.IP "\fBmono\fR" 4
-.IX Item "mono"
-\&\s-1FC\s0
-.IP "\fBstereo\fR" 4
-.IX Item "stereo"
-\&\s-1FL+FR\s0
-.IP "\fB2.1\fR" 4
-.IX Item "2.1"
-\&\s-1FL+FR+LFE\s0
-.IP "\fB3.0\fR" 4
-.IX Item "3.0"
-\&\s-1FL+FR+FC\s0
-.IP "\fB3.0(back)\fR" 4
-.IX Item "3.0(back)"
-\&\s-1FL+FR+BC\s0
-.IP "\fB4.0\fR" 4
-.IX Item "4.0"
-\&\s-1FL+FR+FC+BC\s0
-.IP "\fBquad\fR" 4
-.IX Item "quad"
-\&\s-1FL+FR+BL+BR\s0
-.IP "\fBquad(side)\fR" 4
-.IX Item "quad(side)"
-\&\s-1FL+FR+SL+SR\s0
-.IP "\fB3.1\fR" 4
-.IX Item "3.1"
-\&\s-1FL+FR+FC+LFE\s0
-.IP "\fB5.0\fR" 4
-.IX Item "5.0"
-\&\s-1FL+FR+FC+BL+BR\s0
-.IP "\fB5.0(side)\fR" 4
-.IX Item "5.0(side)"
-\&\s-1FL+FR+FC+SL+SR\s0
-.IP "\fB4.1\fR" 4
-.IX Item "4.1"
-\&\s-1FL+FR+FC+LFE+BC\s0
-.IP "\fB5.1\fR" 4
-.IX Item "5.1"
-\&\s-1FL+FR+FC+LFE+BL+BR\s0
-.IP "\fB5.1(side)\fR" 4
-.IX Item "5.1(side)"
-\&\s-1FL+FR+FC+LFE+SL+SR\s0
-.IP "\fB6.0\fR" 4
-.IX Item "6.0"
-\&\s-1FL+FR+FC+BC+SL+SR\s0
-.IP "\fB6.0(front)\fR" 4
-.IX Item "6.0(front)"
-\&\s-1FL+FR+FLC+FRC+SL+SR\s0
-.IP "\fBhexagonal\fR" 4
-.IX Item "hexagonal"
-\&\s-1FL+FR+FC+BL+BR+BC\s0
-.IP "\fB6.1\fR" 4
-.IX Item "6.1"
-\&\s-1FL+FR+FC+LFE+BC+SL+SR\s0
-.IP "\fB6.1\fR" 4
-.IX Item "6.1"
-\&\s-1FL+FR+FC+LFE+BL+BR+BC\s0
-.IP "\fB6.1(front)\fR" 4
-.IX Item "6.1(front)"
-\&\s-1FL+FR+LFE+FLC+FRC+SL+SR\s0
-.IP "\fB7.0\fR" 4
-.IX Item "7.0"
-\&\s-1FL+FR+FC+BL+BR+SL+SR\s0
-.IP "\fB7.0(front)\fR" 4
-.IX Item "7.0(front)"
-\&\s-1FL+FR+FC+FLC+FRC+SL+SR\s0
-.IP "\fB7.1\fR" 4
-.IX Item "7.1"
-\&\s-1FL+FR+FC+LFE+BL+BR+SL+SR\s0
-.IP "\fB7.1(wide)\fR" 4
-.IX Item "7.1(wide)"
-\&\s-1FL+FR+FC+LFE+BL+BR+FLC+FRC\s0
-.IP "\fB7.1(wide\-side)\fR" 4
-.IX Item "7.1(wide-side)"
-\&\s-1FL+FR+FC+LFE+FLC+FRC+SL+SR\s0
-.IP "\fBoctagonal\fR" 4
-.IX Item "octagonal"
-\&\s-1FL+FR+FC+BL+BR+BC+SL+SR\s0
-.IP "\fBdownmix\fR" 4
-.IX Item "downmix"
-\&\s-1DL+DR\s0
-.PP
-A custom channel layout can be specified as a sequence of terms, separated by
-\&'+' or '|'. Each term can be:
-.IP "\(bu" 4
-the name of a standard channel layout (e.g. \fBmono\fR,
-\&\fBstereo\fR, \fB4.0\fR, \fBquad\fR, \fB5.0\fR, etc.)
-.IP "\(bu" 4
-the name of a single channel (e.g. \fB\s-1FL\s0\fR, \fB\s-1FR\s0\fR, \fB\s-1FC\s0\fR, \fB\s-1LFE\s0\fR, etc.)
-.IP "\(bu" 4
-a number of channels, in decimal, optionally followed by 'c', yielding
-the default channel layout for that number of channels (see the
-function \f(CW\*(C`av_get_default_channel_layout\*(C'\fR)
-.IP "\(bu" 4
-a channel layout mask, in hexadecimal starting with \*(L"0x\*(R" (see the
-\&\f(CW\*(C`AV_CH_*\*(C'\fR macros in \fIlibavutil/channel_layout.h\fR.
-.PP
-Starting from libavutil version 53 the trailing character \*(L"c\*(R" to
-specify a number of channels will be required, while a channel layout
-mask could also be specified as a decimal number (if and only if not
-followed by \*(L"c\*(R").
-.PP
-See also the function \f(CW\*(C`av_get_channel_layout\*(C'\fR defined in
-\&\fIlibavutil/channel_layout.h\fR.
-.SH "EXPRESSION EVALUATION"
-.IX Header "EXPRESSION EVALUATION"
-When evaluating an arithmetic expression, FFmpeg uses an internal
-formula evaluator, implemented through the \fIlibavutil/eval.h\fR
-interface.
-.PP
-An expression may contain unary, binary operators, constants, and
-functions.
-.PP
-Two expressions \fIexpr1\fR and \fIexpr2\fR can be combined to form
-another expression "\fIexpr1\fR;\fIexpr2\fR".
-\&\fIexpr1\fR and \fIexpr2\fR are evaluated in turn, and the new
-expression evaluates to the value of \fIexpr2\fR.
-.PP
-The following binary operators are available: \f(CW\*(C`+\*(C'\fR, \f(CW\*(C`\-\*(C'\fR,
-\&\f(CW\*(C`*\*(C'\fR, \f(CW\*(C`/\*(C'\fR, \f(CW\*(C`^\*(C'\fR.
-.PP
-The following unary operators are available: \f(CW\*(C`+\*(C'\fR, \f(CW\*(C`\-\*(C'\fR.
-.PP
-The following functions are available:
-.IP "\fBabs(x)\fR" 4
-.IX Item "abs(x)"
-Compute absolute value of \fIx\fR.
-.IP "\fBacos(x)\fR" 4
-.IX Item "acos(x)"
-Compute arccosine of \fIx\fR.
-.IP "\fBasin(x)\fR" 4
-.IX Item "asin(x)"
-Compute arcsine of \fIx\fR.
-.IP "\fBatan(x)\fR" 4
-.IX Item "atan(x)"
-Compute arctangent of \fIx\fR.
-.IP "\fBbetween(x, min, max)\fR" 4
-.IX Item "between(x, min, max)"
-Return 1 if \fIx\fR is greater than or equal to \fImin\fR and lesser than or
-equal to \fImax\fR, 0 otherwise.
-.IP "\fBbitand(x, y)\fR" 4
-.IX Item "bitand(x, y)"
-.PD 0
-.IP "\fBbitor(x, y)\fR" 4
-.IX Item "bitor(x, y)"
-.PD
-Compute bitwise and/or operation on \fIx\fR and \fIy\fR.
-.Sp
-The results of the evaluation of \fIx\fR and \fIy\fR are converted to
-integers before executing the bitwise operation.
-.Sp
-Note that both the conversion to integer and the conversion back to
-floating point can lose precision. Beware of unexpected results for
-large numbers (usually 2^53 and larger).
-.IP "\fBceil(expr)\fR" 4
-.IX Item "ceil(expr)"
-Round the value of expression \fIexpr\fR upwards to the nearest
-integer. For example, \*(L"ceil(1.5)\*(R" is \*(L"2.0\*(R".
-.IP "\fBcos(x)\fR" 4
-.IX Item "cos(x)"
-Compute cosine of \fIx\fR.
-.IP "\fBcosh(x)\fR" 4
-.IX Item "cosh(x)"
-Compute hyperbolic cosine of \fIx\fR.
-.IP "\fBeq(x, y)\fR" 4
-.IX Item "eq(x, y)"
-Return 1 if \fIx\fR and \fIy\fR are equivalent, 0 otherwise.
-.IP "\fBexp(x)\fR" 4
-.IX Item "exp(x)"
-Compute exponential of \fIx\fR (with base \f(CW\*(C`e\*(C'\fR, the Euler's number).
-.IP "\fBfloor(expr)\fR" 4
-.IX Item "floor(expr)"
-Round the value of expression \fIexpr\fR downwards to the nearest
-integer. For example, \*(L"floor(\-1.5)\*(R" is \*(L"\-2.0\*(R".
-.IP "\fBgauss(x)\fR" 4
-.IX Item "gauss(x)"
-Compute Gauss function of \fIx\fR, corresponding to
-\&\f(CW\*(C`exp(\-x*x/2) / sqrt(2*PI)\*(C'\fR.
-.IP "\fBgcd(x, y)\fR" 4
-.IX Item "gcd(x, y)"
-Return the greatest common divisor of \fIx\fR and \fIy\fR. If both \fIx\fR and
-\&\fIy\fR are 0 or either or both are less than zero then behavior is undefined.
-.IP "\fBgt(x, y)\fR" 4
-.IX Item "gt(x, y)"
-Return 1 if \fIx\fR is greater than \fIy\fR, 0 otherwise.
-.IP "\fBgte(x, y)\fR" 4
-.IX Item "gte(x, y)"
-Return 1 if \fIx\fR is greater than or equal to \fIy\fR, 0 otherwise.
-.IP "\fBhypot(x, y)\fR" 4
-.IX Item "hypot(x, y)"
-This function is similar to the C function with the same name; it returns
-"sqrt(\fIx\fR*\fIx\fR + \fIy\fR*\fIy\fR)", the length of the hypotenuse of a
-right triangle with sides of length \fIx\fR and \fIy\fR, or the distance of the
-point (\fIx\fR, \fIy\fR) from the origin.
-.IP "\fBif(x, y)\fR" 4
-.IX Item "if(x, y)"
-Evaluate \fIx\fR, and if the result is non-zero return the result of
-the evaluation of \fIy\fR, return 0 otherwise.
-.IP "\fBif(x, y, z)\fR" 4
-.IX Item "if(x, y, z)"
-Evaluate \fIx\fR, and if the result is non-zero return the evaluation
-result of \fIy\fR, otherwise the evaluation result of \fIz\fR.
-.IP "\fBifnot(x, y)\fR" 4
-.IX Item "ifnot(x, y)"
-Evaluate \fIx\fR, and if the result is zero return the result of the
-evaluation of \fIy\fR, return 0 otherwise.
-.IP "\fBifnot(x, y, z)\fR" 4
-.IX Item "ifnot(x, y, z)"
-Evaluate \fIx\fR, and if the result is zero return the evaluation
-result of \fIy\fR, otherwise the evaluation result of \fIz\fR.
-.IP "\fBisinf(x)\fR" 4
-.IX Item "isinf(x)"
-Return 1.0 if \fIx\fR is +/\-INFINITY, 0.0 otherwise.
-.IP "\fBisnan(x)\fR" 4
-.IX Item "isnan(x)"
-Return 1.0 if \fIx\fR is \s-1NAN\s0, 0.0 otherwise.
-.IP "\fBld(var)\fR" 4
-.IX Item "ld(var)"
-Allow to load the value of the internal variable with number
-\&\fIvar\fR, which was previously stored with st(\fIvar\fR, \fIexpr\fR).
-The function returns the loaded value.
-.IP "\fBlog(x)\fR" 4
-.IX Item "log(x)"
-Compute natural logarithm of \fIx\fR.
-.IP "\fBlt(x, y)\fR" 4
-.IX Item "lt(x, y)"
-Return 1 if \fIx\fR is lesser than \fIy\fR, 0 otherwise.
-.IP "\fBlte(x, y)\fR" 4
-.IX Item "lte(x, y)"
-Return 1 if \fIx\fR is lesser than or equal to \fIy\fR, 0 otherwise.
-.IP "\fBmax(x, y)\fR" 4
-.IX Item "max(x, y)"
-Return the maximum between \fIx\fR and \fIy\fR.
-.IP "\fBmin(x, y)\fR" 4
-.IX Item "min(x, y)"
-Return the maximum between \fIx\fR and \fIy\fR.
-.IP "\fBmod(x, y)\fR" 4
-.IX Item "mod(x, y)"
-Compute the remainder of division of \fIx\fR by \fIy\fR.
-.IP "\fBnot(expr)\fR" 4
-.IX Item "not(expr)"
-Return 1.0 if \fIexpr\fR is zero, 0.0 otherwise.
-.IP "\fBpow(x, y)\fR" 4
-.IX Item "pow(x, y)"
-Compute the power of \fIx\fR elevated \fIy\fR, it is equivalent to
-"(\fIx\fR)^(\fIy\fR)".
-.IP "\fBprint(t)\fR" 4
-.IX Item "print(t)"
-.PD 0
-.IP "\fBprint(t, l)\fR" 4
-.IX Item "print(t, l)"
-.PD
-Print the value of expression \fIt\fR with loglevel \fIl\fR. If
-\&\fIl\fR is not specified then a default log level is used.
-Returns the value of the expression printed.
-.Sp
-Prints t with loglevel l
-.IP "\fBrandom(x)\fR" 4
-.IX Item "random(x)"
-Return a pseudo random value between 0.0 and 1.0. \fIx\fR is the index of the
-internal variable which will be used to save the seed/state.
-.IP "\fBroot(expr, max)\fR" 4
-.IX Item "root(expr, max)"
-Find an input value for which the function represented by \fIexpr\fR
-with argument \fI\fIld\fI\|(0)\fR is 0 in the interval 0..\fImax\fR.
-.Sp
-The expression in \fIexpr\fR must denote a continuous function or the
-result is undefined.
-.Sp
-\&\fI\fIld\fI\|(0)\fR is used to represent the function input value, which means
-that the given expression will be evaluated multiple times with
-various input values that the expression can access through
-\&\f(CWld(0)\fR. When the expression evaluates to 0 then the
-corresponding input value will be returned.
-.IP "\fBsin(x)\fR" 4
-.IX Item "sin(x)"
-Compute sine of \fIx\fR.
-.IP "\fBsinh(x)\fR" 4
-.IX Item "sinh(x)"
-Compute hyperbolic sine of \fIx\fR.
-.IP "\fBsqrt(expr)\fR" 4
-.IX Item "sqrt(expr)"
-Compute the square root of \fIexpr\fR. This is equivalent to
-"(\fIexpr\fR)^.5".
-.IP "\fBsquish(x)\fR" 4
-.IX Item "squish(x)"
-Compute expression \f(CW\*(C`1/(1 + exp(4*x))\*(C'\fR.
-.IP "\fBst(var, expr)\fR" 4
-.IX Item "st(var, expr)"
-Allow to store the value of the expression \fIexpr\fR in an internal
-variable. \fIvar\fR specifies the number of the variable where to
-store the value, and it is a value ranging from 0 to 9. The function
-returns the value stored in the internal variable.
-Note, Variables are currently not shared between expressions.
-.IP "\fBtan(x)\fR" 4
-.IX Item "tan(x)"
-Compute tangent of \fIx\fR.
-.IP "\fBtanh(x)\fR" 4
-.IX Item "tanh(x)"
-Compute hyperbolic tangent of \fIx\fR.
-.IP "\fBtaylor(expr, x)\fR" 4
-.IX Item "taylor(expr, x)"
-.PD 0
-.IP "\fBtaylor(expr, x, id)\fR" 4
-.IX Item "taylor(expr, x, id)"
-.PD
-Evaluate a Taylor series at \fIx\fR, given an expression representing
-the \f(CW\*(C`ld(id)\*(C'\fR\-th derivative of a function at 0.
-.Sp
-When the series does not converge the result is undefined.
-.Sp
-\&\fIld(id)\fR is used to represent the derivative order in \fIexpr\fR,
-which means that the given expression will be evaluated multiple times
-with various input values that the expression can access through
-\&\f(CW\*(C`ld(id)\*(C'\fR. If \fIid\fR is not specified then 0 is assumed.
-.Sp
-Note, when you have the derivatives at y instead of 0,
-\&\f(CW\*(C`taylor(expr, x\-y)\*(C'\fR can be used.
-.IP "\fB\f(BItime\fB\|(0)\fR" 4
-.IX Item "time"
-Return the current (wallclock) time in seconds.
-.IP "\fBtrunc(expr)\fR" 4
-.IX Item "trunc(expr)"
-Round the value of expression \fIexpr\fR towards zero to the nearest
-integer. For example, \*(L"trunc(\-1.5)\*(R" is \*(L"\-1.0\*(R".
-.IP "\fBwhile(cond, expr)\fR" 4
-.IX Item "while(cond, expr)"
-Evaluate expression \fIexpr\fR while the expression \fIcond\fR is
-non\-zero, and returns the value of the last \fIexpr\fR evaluation, or
-\&\s-1NAN\s0 if \fIcond\fR was always false.
-.PP
-The following constants are available:
-.IP "\fB\s-1PI\s0\fR" 4
-.IX Item "PI"
-area of the unit disc, approximately 3.14
-.IP "\fBE\fR" 4
-.IX Item "E"
-\&\fIexp\fR\|(1) (Euler's number), approximately 2.718
-.IP "\fB\s-1PHI\s0\fR" 4
-.IX Item "PHI"
-golden ratio (1+\fIsqrt\fR\|(5))/2, approximately 1.618
-.PP
-Assuming that an expression is considered \*(L"true\*(R" if it has a non-zero
-value, note that:
-.PP
-\&\f(CW\*(C`*\*(C'\fR works like \s-1AND\s0
-.PP
-\&\f(CW\*(C`+\*(C'\fR works like \s-1OR\s0
-.PP
-For example the construct:
-.PP
-.Vb 1
-\&        if (A AND B) then C
-.Ve
-.PP
-is equivalent to:
-.PP
-.Vb 1
-\&        if(A*B, C)
-.Ve
-.PP
-In your C code, you can extend the list of unary and binary functions,
-and define recognized constants, so that they are available for your
-expressions.
-.PP
-The evaluator also recognizes the International System unit prefixes.
-If 'i' is appended after the prefix, binary prefixes are used, which
-are based on powers of 1024 instead of powers of 1000.
-The 'B' postfix multiplies the value by 8, and can be appended after a
-unit prefix or used alone. This allows using for example '\s-1KB\s0', 'MiB',
-\&'G' and 'B' as number postfix.
-.PP
-The list of available International System prefixes follows, with
-indication of the corresponding powers of 10 and of 2.
-.IP "\fBy\fR" 4
-.IX Item "y"
-10^\-24 / 2^\-80
-.IP "\fBz\fR" 4
-.IX Item "z"
-10^\-21 / 2^\-70
-.IP "\fBa\fR" 4
-.IX Item "a"
-10^\-18 / 2^\-60
-.IP "\fBf\fR" 4
-.IX Item "f"
-10^\-15 / 2^\-50
-.IP "\fBp\fR" 4
-.IX Item "p"
-10^\-12 / 2^\-40
-.IP "\fBn\fR" 4
-.IX Item "n"
-10^\-9 / 2^\-30
-.IP "\fBu\fR" 4
-.IX Item "u"
-10^\-6 / 2^\-20
-.IP "\fBm\fR" 4
-.IX Item "m"
-10^\-3 / 2^\-10
-.IP "\fBc\fR" 4
-.IX Item "c"
-10^\-2
-.IP "\fBd\fR" 4
-.IX Item "d"
-10^\-1
-.IP "\fBh\fR" 4
-.IX Item "h"
-10^2
-.IP "\fBk\fR" 4
-.IX Item "k"
-10^3 / 2^10
-.IP "\fBK\fR" 4
-.IX Item "K"
-10^3 / 2^10
-.IP "\fBM\fR" 4
-.IX Item "M"
-10^6 / 2^20
-.IP "\fBG\fR" 4
-.IX Item "G"
-10^9 / 2^30
-.IP "\fBT\fR" 4
-.IX Item "T"
-10^12 / 2^40
-.IP "\fBP\fR" 4
-.IX Item "P"
-10^15 / 2^40
-.IP "\fBE\fR" 4
-.IX Item "E"
-10^18 / 2^50
-.IP "\fBZ\fR" 4
-.IX Item "Z"
-10^21 / 2^60
-.IP "\fBY\fR" 4
-.IX Item "Y"
-10^24 / 2^70
-.SH "OPENCL OPTIONS"
-.IX Header "OPENCL OPTIONS"
-When FFmpeg is configured with \f(CW\*(C`\-\-enable\-opencl\*(C'\fR, it is possible
-to set the options for the global OpenCL context.
-.PP
-The list of supported options follows:
-.IP "\fBbuild_options\fR" 4
-.IX Item "build_options"
-Set build options used to compile the registered kernels.
-.Sp
-See reference \*(L"OpenCL Specification Version: 1.2 chapter 5.6.4\*(R".
-.IP "\fBplatform_idx\fR" 4
-.IX Item "platform_idx"
-Select the index of the platform to run OpenCL code.
-.Sp
-The specified index must be one of the indexes in the device list
-which can be obtained with \f(CW\*(C`av_opencl_get_device_list()\*(C'\fR.
-.IP "\fBdevice_idx\fR" 4
-.IX Item "device_idx"
-Select the index of the device used to run OpenCL code.
-.Sp
-The specifed index must be one of the indexes in the device list which
-can be obtained with \f(CW\*(C`av_opencl_get_device_list()\*(C'\fR.
-.SH "SEE ALSO"
-.IX Header "SEE ALSO"
-\&\fIffmpeg\fR\|(1), \fIffplay\fR\|(1), \fIffprobe\fR\|(1), \fIffserver\fR\|(1), \fIlibavutil\fR\|(3)
-.SH "AUTHORS"
-.IX Header "AUTHORS"
-The FFmpeg developers.
-.PP
-For details about the authorship, see the Git history of the project
-(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
-\&\fBgit log\fR in the FFmpeg source directory, or browsing the
-online repository at <\fBhttp://source.ffmpeg.org\fR>.
-.PP
-Maintainers for the specific components are listed in the file
-\&\fI\s-1MAINTAINERS\s0\fR in the source code tree.
diff --git a/contrib/sdk/sources/ffmpeg/doc/libavcodec.3 b/contrib/sdk/sources/ffmpeg/doc/libavcodec.3
deleted file mode 100644
index fe7fb24e7d..0000000000
--- a/contrib/sdk/sources/ffmpeg/doc/libavcodec.3
+++ /dev/null
@@ -1,159 +0,0 @@
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-.\" ========================================================================
-.\"
-.IX Title "doc::libavcodec 3"
-.TH doc::libavcodec 3 "2013-12-14" " " " "
-.SH "NAME"
-libavcodec \- media streams decoding and encoding library
-.SH "DESCRIPTION"
-.IX Header "DESCRIPTION"
-The libavcodec library provides a generic encoding/decoding framework
-and contains multiple decoders and encoders for audio, video and
-subtitle streams, and several bitstream filters.
-.PP
-The shared architecture provides various services ranging from bit
-stream I/O to \s-1DSP\s0 optimizations, and makes it suitable for
-implementing robust and fast codecs as well as for experimentation.
-.SH "SEE ALSO"
-.IX Header "SEE ALSO"
-\&\fIffmpeg\fR\|(1), \fIffplay\fR\|(1), \fIffprobe\fR\|(1), \fIffserver\fR\|(1),
-\&\fIffmpeg\-codecs\fR\|(1), \fIffmpeg\-bitstream\-filters\fR\|(1),
-\&\fIlibavutil\fR\|(3)
-.SH "AUTHORS"
-.IX Header "AUTHORS"
-The FFmpeg developers.
-.PP
-For details about the authorship, see the Git history of the project
-(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
-\&\fBgit log\fR in the FFmpeg source directory, or browsing the
-online repository at <\fBhttp://source.ffmpeg.org\fR>.
-.PP
-Maintainers for the specific components are listed in the file
-\&\fI\s-1MAINTAINERS\s0\fR in the source code tree.
diff --git a/contrib/sdk/sources/ffmpeg/doc/libavdevice.3 b/contrib/sdk/sources/ffmpeg/doc/libavdevice.3
deleted file mode 100644
index 20797a7c15..0000000000
--- a/contrib/sdk/sources/ffmpeg/doc/libavdevice.3
+++ /dev/null
@@ -1,156 +0,0 @@
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-.IX Title "doc::libavdevice 3"
-.TH doc::libavdevice 3 "2013-12-14" " " " "
-.SH "NAME"
-libavdevice \- multimedia device handling library
-.SH "DESCRIPTION"
-.IX Header "DESCRIPTION"
-The libavdevice library provides a generic framework for grabbing from
-and rendering to many common multimedia input/output devices, and
-supports several input and output devices, including Video4Linux2,
-VfW, DShow, and \s-1ALSA\s0.
-.SH "SEE ALSO"
-.IX Header "SEE ALSO"
-\&\fIffmpeg\fR\|(1), \fIffplay\fR\|(1), \fIffprobe\fR\|(1), \fIffserver\fR\|(1),
-\&\fIffmpeg\-devices\fR\|(1),
-\&\fIlibavutil\fR\|(3), \fIlibavcodec\fR\|(3), \fIlibavformat\fR\|(3)
-.SH "AUTHORS"
-.IX Header "AUTHORS"
-The FFmpeg developers.
-.PP
-For details about the authorship, see the Git history of the project
-(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
-\&\fBgit log\fR in the FFmpeg source directory, or browsing the
-online repository at <\fBhttp://source.ffmpeg.org\fR>.
-.PP
-Maintainers for the specific components are listed in the file
-\&\fI\s-1MAINTAINERS\s0\fR in the source code tree.
diff --git a/contrib/sdk/sources/ffmpeg/doc/libavformat.3 b/contrib/sdk/sources/ffmpeg/doc/libavformat.3
deleted file mode 100644
index 691d5b42ce..0000000000
--- a/contrib/sdk/sources/ffmpeg/doc/libavformat.3
+++ /dev/null
@@ -1,159 +0,0 @@
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-.\" ========================================================================
-.\"
-.IX Title "doc::libavformat 3"
-.TH doc::libavformat 3 "2013-12-14" " " " "
-.SH "NAME"
-libavformat \- multimedia muxing and demuxing library
-.SH "DESCRIPTION"
-.IX Header "DESCRIPTION"
-The libavformat library provides a generic framework for multiplexing
-and demultiplexing (muxing and demuxing) audio, video and subtitle
-streams. It encompasses multiple muxers and demuxers for multimedia
-container formats.
-.PP
-It also supports several input and output protocols to access a media
-resource.
-.SH "SEE ALSO"
-.IX Header "SEE ALSO"
-\&\fIffmpeg\fR\|(1), \fIffplay\fR\|(1), \fIffprobe\fR\|(1), \fIffserver\fR\|(1),
-\&\fIffmpeg\-formats\fR\|(1), \fIffmpeg\-protocols\fR\|(1),
-\&\fIlibavutil\fR\|(3), \fIlibavcodec\fR\|(3)
-.SH "AUTHORS"
-.IX Header "AUTHORS"
-The FFmpeg developers.
-.PP
-For details about the authorship, see the Git history of the project
-(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
-\&\fBgit log\fR in the FFmpeg source directory, or browsing the
-online repository at <\fBhttp://source.ffmpeg.org\fR>.
-.PP
-Maintainers for the specific components are listed in the file
-\&\fI\s-1MAINTAINERS\s0\fR in the source code tree.
diff --git a/contrib/sdk/sources/ffmpeg/doc/libavutil.3 b/contrib/sdk/sources/ffmpeg/doc/libavutil.3
deleted file mode 100644
index e990fab5fe..0000000000
--- a/contrib/sdk/sources/ffmpeg/doc/libavutil.3
+++ /dev/null
@@ -1,156 +0,0 @@
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-.\" ========================================================================
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-.IX Title "doc::libavutil 3"
-.TH doc::libavutil 3 "2013-12-14" " " " "
-.SH "NAME"
-libavutil \- multimedia\-biased utility library
-.SH "DESCRIPTION"
-.IX Header "DESCRIPTION"
-The libavutil library is a utility library to aid portable
-multimedia programming. It contains safe portable string functions,
-random number generators, data structures, additional mathematics
-functions, cryptography and multimedia related functionality (like
-enumerations for pixel and sample formats).
-.SH "SEE ALSO"
-.IX Header "SEE ALSO"
-\&\fIffmpeg\fR\|(1), \fIffplay\fR\|(1), \fIffprobe\fR\|(1), \fIffserver\fR\|(1),
-\&\fIffmpeg\-utils\fR\|(1)
-.SH "AUTHORS"
-.IX Header "AUTHORS"
-The FFmpeg developers.
-.PP
-For details about the authorship, see the Git history of the project
-(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
-\&\fBgit log\fR in the FFmpeg source directory, or browsing the
-online repository at <\fBhttp://source.ffmpeg.org\fR>.
-.PP
-Maintainers for the specific components are listed in the file
-\&\fI\s-1MAINTAINERS\s0\fR in the source code tree.
diff --git a/contrib/sdk/sources/ffmpeg/doc/libswresample.3 b/contrib/sdk/sources/ffmpeg/doc/libswresample.3
deleted file mode 100644
index 58fb0288b0..0000000000
--- a/contrib/sdk/sources/ffmpeg/doc/libswresample.3
+++ /dev/null
@@ -1,176 +0,0 @@
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-.\" ========================================================================
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-.IX Title "doc::libswresample 3"
-.TH doc::libswresample 3 "2013-12-14" " " " "
-.SH "NAME"
-libswresample \- audio resampling library
-.SH "DESCRIPTION"
-.IX Header "DESCRIPTION"
-The libswresample library performs highly optimized audio resampling,
-rematrixing and sample format conversion operations.
-.PP
-Specifically, this library performs the following conversions:
-.IP "\(bu" 4
-\&\fIResampling\fR: is the process of changing the audio rate, for
-example from a high sample rate of 44100Hz to 8000Hz. Audio
-conversion from high to low sample rate is a lossy process. Several
-resampling options and algorithms are available.
-.IP "\(bu" 4
-\&\fIFormat conversion\fR: is the process of converting the type of
-samples, for example from 16\-bit signed samples to unsigned 8\-bit or
-float samples. It also handles packing conversion, when passing from
-packed layout (all samples belonging to distinct channels interleaved
-in the same buffer), to planar layout (all samples belonging to the
-same channel stored in a dedicated buffer or \*(L"plane\*(R").
-.IP "\(bu" 4
-\&\fIRematrixing\fR: is the process of changing the channel layout, for
-example from stereo to mono. When the input channels cannot be mapped
-to the output streams, the process is lossy, since it involves
-different gain factors and mixing.
-.PP
-Various other audio conversions (e.g. stretching and padding) are
-enabled through dedicated options.
-.SH "SEE ALSO"
-.IX Header "SEE ALSO"
-\&\fIffmpeg\fR\|(1), \fIffplay\fR\|(1), \fIffprobe\fR\|(1), \fIffserver\fR\|(1),
-\&\fIffmpeg\-resampler\fR\|(1),
-\&\fIlibavutil\fR\|(3)
-.SH "AUTHORS"
-.IX Header "AUTHORS"
-The FFmpeg developers.
-.PP
-For details about the authorship, see the Git history of the project
-(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
-\&\fBgit log\fR in the FFmpeg source directory, or browsing the
-online repository at <\fBhttp://source.ffmpeg.org\fR>.
-.PP
-Maintainers for the specific components are listed in the file
-\&\fI\s-1MAINTAINERS\s0\fR in the source code tree.
diff --git a/contrib/sdk/sources/ffmpeg/doc/libswscale.3 b/contrib/sdk/sources/ffmpeg/doc/libswscale.3
deleted file mode 100644
index c4b779ed0f..0000000000
--- a/contrib/sdk/sources/ffmpeg/doc/libswscale.3
+++ /dev/null
@@ -1,170 +0,0 @@
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-.\" ========================================================================
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-.IX Title "doc::libswscale 3"
-.TH doc::libswscale 3 "2013-12-14" " " " "
-.SH "NAME"
-libswscale \- video scaling and pixel format conversion library
-.SH "DESCRIPTION"
-.IX Header "DESCRIPTION"
-The libswscale library performs highly optimized image scaling and
-colorspace and pixel format conversion operations.
-.PP
-Specifically, this library performs the following conversions:
-.IP "\(bu" 4
-\&\fIRescaling\fR: is the process of changing the video size. Several
-rescaling options and algorithms are available. This is usually a
-lossy process.
-.IP "\(bu" 4
-\&\fIPixel format conversion\fR: is the process of converting the image
-format and colorspace of the image, for example from planar \s-1YUV420P\s0 to
-\&\s-1RGB24\s0 packed. It also handles packing conversion, that is converts
-from packed layout (all pixels belonging to distinct planes
-interleaved in the same buffer), to planar layout (all samples
-belonging to the same plane stored in a dedicated buffer or \*(L"plane\*(R").
-.Sp
-This is usually a lossy process in case the source and destination
-colorspaces differ.
-.SH "SEE ALSO"
-.IX Header "SEE ALSO"
-\&\fIffmpeg\fR\|(1), \fIffplay\fR\|(1), \fIffprobe\fR\|(1), \fIffserver\fR\|(1),
-\&\fIffmpeg\-scaler\fR\|(1),
-\&\fIlibavutil\fR\|(3)
-.SH "AUTHORS"
-.IX Header "AUTHORS"
-The FFmpeg developers.
-.PP
-For details about the authorship, see the Git history of the project
-(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
-\&\fBgit log\fR in the FFmpeg source directory, or browsing the
-online repository at <\fBhttp://source.ffmpeg.org\fR>.
-.PP
-Maintainers for the specific components are listed in the file
-\&\fI\s-1MAINTAINERS\s0\fR in the source code tree.