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Andreas Rheinhardt ea70c39dee avcodec/vc1dec: Postpone allocating sprite frame to avoid segfault 
Up until now, the VC-1 decoders allocated an AVFrame for usage with
sprites during vc1_decode_init(); yet said AVFrame can be freed if
(re)initializing the context (which happens ordinarily during decoding)
fails. The AVFrame does not get allocated again lateron in this case,
leading to segfaults.

Fix this by moving the allocation of said frame immediately before it is
used (this also means that said frame won't be allocated at all any more
in case of a regular (i.e. non-image) stream).

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2021-03-25 00:02:17 +01:00
compat compat/cuda: correct ushort4 to use ushort 2021-02-22 17:03:52 +01:00
doc doc/filters: fix option name for mix filter 2021-03-24 16:52:02 +05:30
ffbuild ffbuild/common: Make deletion of templates possible 2021-02-07 09:45:04 +01:00
fftools fftools/ffmpeg: use av_packet_alloc() to allocate packets 2021-03-17 15:19:38 -03:00
libavcodec avcodec/vc1dec: Postpone allocating sprite frame to avoid segfault 2021-03-25 00:02:17 +01:00
libavdevice Bump minor versions after release branch 2021-03-20 01:02:11 +01:00
libavfilter lavfi/dnn/dnn_backend_native_layer_mathunary: add exp support 2021-03-24 13:53:50 +08:00
libavformat avformat/amvenc: Remove unnecessary av_packet_free() 2021-03-24 00:31:29 +01:00
libavresample avresample: remove deprecated attribute from the AVAudioResampleContext struct 2018-01-09 10:56:53 -03:00
libavutil avutil/frame: Deprecate av_get_colorspace_name() 2021-03-24 08:00:57 +01:00
libpostproc Bump minor versions after release branch 2021-03-20 01:02:11 +01:00
libswresample Bump minor versions after release branch 2021-03-20 01:02:11 +01:00
libswscale Bump minor versions after release branch 2021-03-20 01:02:11 +01:00
presets
tests tests/dnn/dnn-layer-mathunary-test: add unit test for exp 2021-03-24 13:57:19 +08:00
tools lavfi/dnn/dnn_backend_native_layer_mathunary: add exp support 2021-03-24 13:53:50 +08:00
.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 2021-03-09 02:09:55 +00:00
.travis.yml Merge commit '899ee03088' 2019-03-14 15:53:16 -03:00
Changelog avformat: add Changelog entry for librist and bump minor 2021-03-13 17:36:48 +01:00
configure configure: select child muxers for rtp_mpegts 2021-03-21 15:50:23 +05:30
CONTRIBUTING.md Add CONTRIBUTING.md 2016-09-18 10:02:13 +01:00
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1 cosmetics: Delete empty lines at end of file. 2012-02-09 12:26:45 +01:00
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 avcodec: move core AVCodecContext functions from util.c to a new file 2021-03-19 15:35:35 -03:00
README.md Remove the ffserver program 2018-01-06 18:31:37 +00:00
RELEASE Bump Versions before release/4.4 branch 2021-03-20 01:01:12 +01:00

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.