When slice_h is rounded up due to chroma subsampling, there's a risk that jobnr * slice_h exceeds frame->height. Prior to a638e9184d63, this wasn't an issue for the last slice of a frame, since slice_end was set to frame->height for the last slice. a638e9184d63 tried to fix the case where other slices than the last one would exceed frame->height (which can happen where the number of slices/threads is very large compared to the frame height). However, the fix in a638e9184d63 instead broke other cases, where slice_h * nb_threads < frame->height. Therefore, make sure the last slice always ends at frame->height. CC: libav-stable@libav.org Signed-off-by: Martin Storsjö <martin@martin.st>
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Libav
Libav is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.
Libraries
libavcodec
provides implementation of a wider range of codecs.libavformat
implements streaming protocols, container formats and basic I/O access.libavutil
includes hashers, decompressors and miscellaneous utility functions.libavfilter
provides a mean to alter decoded Audio and Video through chain of filters.libavdevice
provides an abstraction to access capture and playback devices.libavresample
implements audio mixing and resampling routines.libswscale
implements color conversion and scaling routines.
Tools
- avconv is a command line toolbox to manipulate, convert and stream multimedia content.
- avplay is a minimalistic multimedia player.
- avprobe is a simple analisys tool to inspect multimedia content.
- Additional small tools such as
aviocat
,ismindex
andqt-faststart
.
Documentation
The offline documentation is available in the doc/ directory.
The online documentation is available in the main website and in the wiki.
Examples
Conding examples are available in the doc/example directory.
License
Libav codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.
Description
Languages
C
90.4%
Assembly
7.7%
Makefile
1.3%
C++
0.2%
Objective-C
0.2%
Other
0.1%