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James Almer 089706e009 avcodec/hevcdec: check that the local context list was allocated before dereferencing it 
Since the decoder is not flagged as init cleanup capable, hevc_decode_free()
is being called manually if the hevc_decode_extradata() call fails at the end
of hevc_decode_init().
In a frame threading scenario, however, if AVCodec->init() returns an error,
ff_frame_thread_free() will be called regardless of the above flag being set
or not, resulting in hevc_decode_free() being called a second time for the
same context.

Workaround this by ensuring pointers are not dereferenced if they are NULL,
and set the decoder as init cleanup capable while at it.

Fixes ticket #9099.

Signed-off-by: James Almer <jamrial@gmail.com>
2021-02-11 13:15:45 -03:00
compat All: update names in copyright headers 2021-01-20 01:02:56 -06:00
doc avfilter/vf_pseudocolor: add two more presets 2021-02-11 14:37:14 +01:00
ffbuild ffbuild/common: Make deletion of templates possible 2021-02-07 09:45:04 +01:00
fftools ffmpeg: add -fpsmax to clamp output framerate 2021-02-05 22:54:18 +05:30
libavcodec avcodec/hevcdec: check that the local context list was allocated before dereferencing it 2021-02-11 13:15:45 -03:00
libavdevice avdevice/xcbgrab: don't assume xserver endianness 2021-02-06 11:42:12 -05:00
libavfilter avfilter/vf_pseudocolor: do not leave alpha uninitialized 2021-02-11 14:37:14 +01:00
libavformat avformat/wavdec: Consider AV_INPUT_BUFFER_PADDING_SIZE in set_spdif() 2021-02-10 21:18:18 +01:00
libavresample avresample: remove deprecated attribute from the AVAudioResampleContext struct 2018-01-09 10:56:53 -03:00
libavutil avutil/common: Move everything inside inclusion guards 2021-02-11 09:07:10 +01:00
libpostproc lavu/mem: move the DECLARE_ALIGNED macro family to mem_internal on next+1 bump 2021-01-01 14:14:57 +01:00
libswresample swresample/audioconvert: Fix left shift of negative value 2020-09-30 10:50:45 +02:00
libswscale lsws/ppc/yuv2rgb: Fix transparency converting from yuv->rgb32. 2021-01-24 17:17:29 +01:00
presets
tests avformat/fitsenc: write DATAMIN/DATAMAX to encoded output 2021-02-10 00:03:38 +01:00
tools tools/target_dec_fuzzer: Adjust threshold for interplayacm 2021-02-04 23:34:29 +01:00
.gitattributes fate: add SCC test 2017-01-27 17:06:42 +01:00
.gitignore tools/python: add script to convert TensorFlow model (.pb) to native model (.model) 2019-07-01 10:23:47 -03:00
.mailmap mailmap: add entry for myself 2020-07-13 11:24:04 +08:00
.travis.yml Merge commit '899ee03088' 2019-03-14 15:53:16 -03:00
Changelog avfilter: add exposure video filter 2021-02-10 19:23:48 +01:00
configure avcodec/aacdec_fixed: Move fixed-point sinewin tables to its only user 2021-02-07 10:28:29 +01:00
CONTRIBUTING.md Add CONTRIBUTING.md 2016-09-18 10:02:13 +01:00
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS
INSTALL.md INSTALL.md: Fix Markdown formatting 2019-01-31 10:29:16 -09:00
LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
MAINTAINERS MAINTAINERS: update names 2021-01-20 01:04:26 -06:00
Makefile tools/enum_options: fix build and add to Makefile 2020-11-20 15:20:24 +01:00
README.md Remove the ffserver program 2018-01-06 18:31:37 +00:00
RELEASE RELEASE: We are after the 4.3 branch point, update for that 2020-06-10 00:20:24 +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.