path: root/doc/libswscale.texi (plain)
blob: 757fd24139677b30eb9bad6a6f5decbd00de6986

1	\input texinfo @c -*- texinfo -*-
2	@documentencoding UTF-8
3
4	@settitle Libswscale Documentation
5	@titlepage
6	@center @titlefont{Libswscale Documentation}
7	@end titlepage
8
9	@top
10
11	@contents
12
13	@chapter Description
14	@c man begin DESCRIPTION
15
16	The libswscale library performs highly optimized image scaling and
17	colorspace and pixel format conversion operations.
18
19	Specifically, this library performs the following conversions:
20
21	@itemize
22	@item
23	@emph{Rescaling}: is the process of changing the video size. Several
24	rescaling options and algorithms are available. This is usually a
25	lossy process.
26
27	@item
28	@emph{Pixel format conversion}: is the process of converting the image
29	format and colorspace of the image, for example from planar YUV420P to
30	RGB24 packed. It also handles packing conversion, that is converts
31	from packed layout (all pixels belonging to distinct planes
32	interleaved in the same buffer), to planar layout (all samples
33	belonging to the same plane stored in a dedicated buffer or "plane").
34
35	This is usually a lossy process in case the source and destination
36	colorspaces differ.
37	@end itemize
38
39	@c man end DESCRIPTION
40
41	@chapter See Also
42
43	@ifhtml
44	@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
45	@url{ffmpeg-scaler.html,ffmpeg-scaler},
46	@url{libavutil.html,libavutil}
47	@end ifhtml
48
49	@ifnothtml
50	ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1),
51	ffmpeg-scaler(1),
52	libavutil(3)
53	@end ifnothtml
54
55	@include authors.texi
56
57	@ignore
58
59	@setfilename libswscale
60	@settitle video scaling and pixel format conversion library
61
62	@end ignore
63
64	@bye
65