mirror of https://git.ffmpeg.org/ffmpeg.git
56 lines
1.4 KiB
Plaintext
56 lines
1.4 KiB
Plaintext
|
\input texinfo @c -*- texinfo -*-
|
||
|
|
|
||
|
|
@settitle Libswscale Documentation
|
||
|
|
@titlepage
|
||
|
|
@center @titlefont{Libswscale Documentation}
|
||
|
|
@end titlepage
|
||
|
|
|
||
|
|
@top
|
||
|
|
|
||
|
|
@contents
|
||
|
|
|
||
|
|
@chapter Description
|
||
|
|
@c man begin DESCRIPTION
|
||
|
|
|
||
|
|
The libswscale library performs highly optimized image scaling and
|
||
|
|
colorspace and pixel format conversion operations.
|
||
|
|
|
||
|
|
Specifically, this library performs the following conversions:
|
||
|
|
|
||
|
|
@itemize
|
||
|
|
@item
|
||
|
|
@emph{Rescaling}: is the process of changing the video size. Several
|
||
|
|
rescaling options and algorithms are available. This is usually a
|
||
|
|
lossy process.
|
||
|
|
|
||
|
|
@item
|
||
|
|
@emph{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.
|
||
|
|
@end itemize
|
||
|
|
|
||
|
|
@c man end DESCRIPTION
|
||
|
|
|
||
|
|
@ignore
|
||
|
|
|
||
|
|
@setfilename libswscale
|
||
|
|
@settitle video scaling and pixel format conversion library
|
||
|
|
|
||
|
|
@c man begin SEEALSO
|
||
|
|
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), ffmpeg-scaler(1), libavutil(3)
|
||
|
|
@c man end
|
||
|
|
|
||
|
|
@c man begin AUTHORS
|
||
|
|
See Git history (git://source.ffmpeg.org/ffmpeg)
|
||
|
|
@c man end
|
||
|
|
|
||
|
|
@end ignore
|
||
|
|
|
||
|
|
@bye
|