Michael Niedermayer
7a289c90e6
The resample asm code as it is currently handles 1 sample at a time
The asm code should be redesigned and handle more than 1 sample at a
time. That is the whole purpose of SIMD. There is also multiple samples
available that need identical handling like from several channels or
similar handling from other points in time.
Such redesign would make the resampler faster and would change the
requirements of padding and maybe memory layout. So it seems simpler
to just avoid overwriting in the asm as it is today than to have
the allocation handle specific overallocation for asm code that
ideally should be redesigned
Fixes writing 16bits over the end of the array
This is an alternative fix for https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23053
Found-by: Ivan Grigorev <ivangrigoriev@meta.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 4171581953)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
FFmpeg README
FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.
Libraries
libavcodecprovides implementation of a wider range of codecs.libavformatimplements streaming protocols, container formats and basic I/O access.libavutilincludes hashers, decompressors and miscellaneous utility functions.libavfilterprovides means to alter decoded audio and video through a directed graph of connected filters.libavdeviceprovides an abstraction to access capture and playback devices.libswresampleimplements audio mixing and resampling routines.libswscaleimplements color conversion and scaling routines.
Tools
- ffmpeg is a command line toolbox to manipulate, convert and stream multimedia content.
- ffplay is a minimalistic multimedia player.
- ffprobe is a simple analysis tool to inspect multimedia content.
- Additional small tools such as
aviocat,ismindexandqt-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
Coding examples are available in the doc/examples directory.
License
FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.
Contributing
Patches should be submitted to the ffmpeg-devel mailing list using
git format-patch or git send-email. Github pull requests should be
avoided because they are not part of our review process and will be ignored.