64 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			64 lines
		
	
	
		
			1.5 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
 | 
						|
 | 
						|
@chapter See Also
 | 
						|
 | 
						|
@ifhtml
 | 
						|
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
 | 
						|
@url{ffmpeg-scaler.html,ffmpeg-scaler},
 | 
						|
@url{libavutil.html,libavutil}
 | 
						|
@end ifhtml
 | 
						|
 | 
						|
@ifnothtml
 | 
						|
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1),
 | 
						|
ffmpeg-scaler(1),
 | 
						|
libavutil(3)
 | 
						|
@end ifnothtml
 | 
						|
 | 
						|
@include authors.texi
 | 
						|
 | 
						|
@ignore
 | 
						|
 | 
						|
@setfilename libswscale
 | 
						|
@settitle video scaling and pixel format conversion library
 | 
						|
 | 
						|
@end ignore
 | 
						|
 | 
						|
@bye
 |