forked from KolibriOS/kolibrios
67 lines
1.4 KiB
Plaintext
67 lines
1.4 KiB
Plaintext
|
=encoding utf8
|
||
|
|
|
||
|
|
=head1 NAME
|
||
|
|
|
||
|
|
libswscale - video scaling and pixel format conversion library
|
||
|
|
|
||
|
|
=head1 DESCRIPTION
|
||
|
|
|
||
|
|
|
||
|
|
The libswscale library performs highly optimized image scaling and
|
||
|
|
colorspace and pixel format conversion operations.
|
||
|
|
|
||
|
|
Specifically, this library performs the following conversions:
|
||
|
|
|
||
|
|
|
||
|
|
=over 4
|
||
|
|
|
||
|
|
|
||
|
|
=item *
|
||
|
|
|
||
|
|
I<Rescaling>: is the process of changing the video size. Several
|
||
|
|
rescaling options and algorithms are available. This is usually a
|
||
|
|
lossy process.
|
||
|
|
|
||
|
|
|
||
|
|
=item *
|
||
|
|
|
||
|
|
I<Pixel format conversion>: is the process of converting the image
|
||
|
|
format and colorspace of the image, for example from planar YUV420P to
|
||
|
|
RGB24 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 "plane").
|
||
|
|
|
||
|
|
This is usually a lossy process in case the source and destination
|
||
|
|
colorspaces differ.
|
||
|
|
|
||
|
|
=back
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
=head1 SEE ALSO
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1),
|
||
|
|
ffmpeg-scaler(1),
|
||
|
|
libavutil(3)
|
||
|
|
|
||
|
|
|
||
|
|
=head1 AUTHORS
|
||
|
|
|
||
|
|
|
||
|
|
The FFmpeg developers.
|
||
|
|
|
||
|
|
For details about the authorship, see the Git history of the project
|
||
|
|
(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
|
||
|
|
B<git log> in the FFmpeg source directory, or browsing the
|
||
|
|
online repository at E<lt>B<http://source.ffmpeg.org>E<gt>.
|
||
|
|
|
||
|
|
Maintainers for the specific components are listed in the file
|
||
|
|
F<MAINTAINERS> in the source code tree.
|
||
|
|
|
||
|
|
|
||
|
|
|