[Top]

[Contents]

[Index]

[ ? ]

Libswscale Documentation

1. Description

The libswscale library performs highly optimized image scaling and colorspace and pixel format conversion operations.

Specifically, this library performs the following conversions:

• Rescaling: is the process of changing the video size. Several rescaling options and algorithms are available. This is usually a lossy process.
• 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.

2. See Also

ffmpeg, ffplay, ffprobe, ffserver, ffmpeg-scaler, libavutil

3. 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 git log in the FFmpeg source directory, or browsing the online repository at http://source.ffmpeg.org.

Maintainers for the specific components are listed in the file `MAINTAINERS' in the source code tree.

[Top]

[Contents]

[Index]

[ ? ]

Table of Contents

[Top]

[Contents]

[Index]

[ ? ]

About This Document

This document was generated on January, 10 2016 using texi2html 1.76.

The buttons in the navigation panels have the following meaning:

Button	Name	Go to	From 1.2.3 go to
[ < ]	Back	previous section in reading order	1.2.2
[ > ]	Forward	next section in reading order	1.2.4
[ << ]	FastBack	beginning of this chapter or previous chapter	1
[ Up ]	Up	up section	1.2
[ >> ]	FastForward	next chapter	2
[Top]	Top	cover (top) of document
[Contents]	Contents	table of contents
[Index]	Index	index
[ ? ]	About	about (help)

where the Example assumes that the current position is at Subsubsection One-Two-Three of a document of the following structure:

• 1. Section One
  • 1.1 Subsection One-One
    • ...
  • 1.2 Subsection One-Two
    • 1.2.1 Subsubsection One-Two-One
    • 1.2.2 Subsubsection One-Two-Two
    • 1.2.3 Subsubsection One-Two-Three     <== Current Position
    • 1.2.4 Subsubsection One-Two-Four
  • 1.3 Subsection One-Three
    • ...
  • 1.4 Subsection One-Four