forked from KolibriOS/kolibrios
171 lines
5.2 KiB
Groff
171 lines
5.2 KiB
Groff
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.\" ========================================================================
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.\"
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.IX Title "doc::libswscale 3"
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.TH doc::libswscale 3 "2013-12-14" " " " "
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.SH "NAME"
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libswscale \- video scaling and pixel format conversion library
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.SH "DESCRIPTION"
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.IX Header "DESCRIPTION"
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The libswscale library performs highly optimized image scaling and
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colorspace and pixel format conversion operations.
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.PP
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Specifically, this library performs the following conversions:
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.IP "\(bu" 4
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\&\fIRescaling\fR: is the process of changing the video size. Several
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rescaling options and algorithms are available. This is usually a
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lossy process.
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.IP "\(bu" 4
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\&\fIPixel format conversion\fR: is the process of converting the image
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format and colorspace of the image, for example from planar \s-1YUV420P\s0 to
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\&\s-1RGB24\s0 packed. It also handles packing conversion, that is converts
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from packed layout (all pixels belonging to distinct planes
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interleaved in the same buffer), to planar layout (all samples
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belonging to the same plane stored in a dedicated buffer or \*(L"plane\*(R").
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.Sp
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This is usually a lossy process in case the source and destination
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colorspaces differ.
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.SH "SEE ALSO"
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.IX Header "SEE ALSO"
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\&\fIffmpeg\fR\|(1), \fIffplay\fR\|(1), \fIffprobe\fR\|(1), \fIffserver\fR\|(1),
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\&\fIffmpeg\-scaler\fR\|(1),
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\&\fIlibavutil\fR\|(3)
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.SH "AUTHORS"
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.IX Header "AUTHORS"
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The FFmpeg developers.
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.PP
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For details about the authorship, see the Git history of the project
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(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
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\&\fBgit log\fR in the FFmpeg source directory, or browsing the
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online repository at <\fBhttp://source.ffmpeg.org\fR>.
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.PP
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Maintainers for the specific components are listed in the file
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\&\fI\s-1MAINTAINERS\s0\fR in the source code tree.
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