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Michael Niedermayer 11a6347f9e avcodec/celp_filters: Avoid invalid negation in ff_celp_lp_synthesis_filter() 
Fixes: negation of -2147483648 cannot be represented in type 'int'; cast to an unsigned type to negate this value to itself
Fixes: 25675/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_G729_fuzzer-4786580731199488

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-10-10 13:08:24 +02:00
compat
doc lavc,doc: add libuavs3d video decoder wrapper 2020-10-06 00:01:33 +08:00
ffbuild ffbuild: Refine MIPS handling 2020-07-23 16:30:02 +02:00
fftools fftools/ffprobe: use av_timecode_make_smpte_tc_string2 2020-09-13 17:51:57 +02:00
libavcodec avcodec/celp_filters: Avoid invalid negation in ff_celp_lp_synthesis_filter() 2020-10-10 13:08:24 +02:00
libavdevice avdevice/lavfi: av_malloc -> av_malloc_array 2020-09-21 09:30:55 +08:00
libavfilter avfilter/vf_minterpolate: Remove redundant code for freeing 2020-10-09 16:38:28 +02:00
libavformat avformat/aviobuf: increase default read buffer size to 2*max_buffer_size for streamed data 2020-10-09 21:07:18 +02:00
libavresample
libavutil avutil/pixdesc: add missing FF_API_PSEUDOPAL check 2020-10-02 00:18:13 -03:00
libpostproc
libswresample swresample/audioconvert: Fix left shift of negative value 2020-09-30 10:50:45 +02:00
libswscale libswcale/input: use more accurate planer rgb16 yuv conversions 2020-10-06 17:56:52 +02:00
presets
tests fate: Add aa-demux test 2020-10-10 13:08:24 +02:00
tools dnn/native: add native support for dense 2020-09-29 14:19:55 +08:00
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Changelog VP9 Profile 2 VDPAU support 2020-10-08 11:18:14 -07:00
configure configure: add missing atsc_a53 dependencies to hevcparse and h264_parser 2020-10-08 10:15:18 -03:00
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Makefile tools:target_dem_fuzzer: Split into a fuzzer fuzzing at the protocol level and one fuzzing a fixed demuxer input 2020-09-13 10:40:02 +02:00
README.md
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README.md

FFmpeg README

FFmpeg 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.
  • libswresample implements audio mixing and resampling routines.
  • libswscale implements 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, ismindex and qt-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.