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Andreas Rheinhardt dbc4b46c7a avfilter/af_aiir: Fix segfault and leak upon allocation failure 
The aiir filter adds output pads in its init function. Each of these
output pads had a name which was allocated and to be freed in the uninit
function. Given that the aiir filter has between one and two outputs,
one output pad's name was freed unconditionally and a second was freed
conditionally.

Yet if adding output pads fails, there are no output pads at all and
trying to free a nonexistent pad's name will lead to a segfault.

Furthermore, if the name could be successfully allocated, yet adding the
new pad fails, the name would leak.

This commit fixes this by not allocating the pads' names at all any
more: They are constant anyway. This allows to remove the code to free
them and hence fixes the aforementioned bugs.

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
(cherry picked from commit 97b1a2c564)
2021-02-27 07:20:57 +01:00
compat compat/cuda/ptx2c: remove shell loop; fix BSD sed compat 2020-06-01 22:10:41 -05:00
doc Update for 4.3.2 2021-02-02 14:55:32 +01:00
ffbuild common.mak: Also clean Windows debug files. 2020-03-21 18:46:00 +01:00
fftools fftools/ffmpeg: Fix leak of AVFilterInOut in case of error 2021-02-27 07:20:56 +01:00
libavcodec avcodec/hapdec: Change compressed_offset to unsigned 32bit 2021-02-20 14:21:24 +01:00
libavdevice Bump minor versions to separate 4.3 from master 2020-06-08 22:49:04 +02:00
libavfilter avfilter/af_aiir: Fix segfault and leak upon allocation failure 2021-02-27 07:20:57 +01:00
libavformat avformat/mlvdec: Only store dimensions after having validated them 2021-02-27 07:20:56 +01:00
libavresample
libavutil libavutil/eval: Remove CONFIG_TRAPV special handling 2021-02-20 14:21:24 +01:00
libpostproc Bump minor versions to separate 4.3 from master 2020-06-08 22:49:04 +02:00
libswresample Bump minor versions to separate 4.3 from master 2020-06-08 22:49:04 +02:00
libswscale swscale/x86/yuv2rgb: fix crashes when loading alpha from unaligned buffers 2020-11-02 00:51:05 +01:00
presets
tests lavf/url: fix relative url parsing when the query string or fragment has a colon 2020-10-28 21:41:21 +01:00
tools tools/target_dec_fuzzer: enable mjpeg for tiff or tdsc 2020-06-08 20:45:56 +02:00
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RELEASE Update for 4.3.2 2021-02-02 14:55:32 +01:00
RELEASE_NOTES RELEASE_NOTES: Based on the version from 4.1 2020-06-14 22:02:34 +02:00

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.