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Andreas Rheinhardt 96ad55df5b avformat/hlsenc: Fix extradata length check 
Commit a2b1dd0ce3 added support for
parsing annex B HEVC extradata to extract profile and level information.
Yet it only checks for there to be enough data left for the startcode
and the first byte of the NAL unit header and not for the full NAL unit
header; it simply presumes the second byte of the NAL unit header to be
present and skips it. Then the remaining size of the extradata is calculated
which ends up negative if the second byte of the NAL unit header is not
present. Yet when calling ff_nal_unit_extract_rbsp() it
will be converted to an uint32_t and end up as UINT32_MAX which
will cause mayhem.

This is solved by making sure that there is always enough remaining
extradata that could (pending 0x03 escapes) contain the data that we
are interested in.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-10-20 12:43:16 +02:00
compat compat/cuda/ptx2c: remove shell loop; fix BSD sed compat 2020-06-01 22:10:41 -05:00
doc doc: Add dev_community/community.md for general assembly and main elections process. 2020-10-19 14:35:14 +02:00
ffbuild ffbuild: Refine MIPS handling 2020-07-23 16:30:02 +02:00
fftools ffmpeg: deduplicate init_output_stream usage logic 2020-10-17 11:55:55 +03:00
libavcodec avcodec/movtextenc: Cleanup generically on init failure 2020-10-19 21:45:22 +02:00
libavdevice avdevice/alldevices: stop using deprecated linked list API 2020-10-19 11:54:45 -03:00
libavfilter avfilter/af_aiir: remove unused argument 2020-10-19 18:42:42 +02:00
libavformat avformat/hlsenc: Fix extradata length check 2020-10-20 12:43:16 +02:00
libavresample avresample: remove deprecated attribute from the AVAudioResampleContext struct 2018-01-09 10:56:53 -03:00
libavutil avutil/pixdesc: add missing FF_API_PSEUDOPAL check 2020-10-02 00:18:13 -03:00
libpostproc Bump minor versions after branching 4.3 2020-06-08 22:49:04 +02:00
libswresample swresample/audioconvert: Fix left shift of negative value 2020-09-30 10:50:45 +02:00
libswscale swscale/utils: override forced-zero formats back to full range 2020-10-11 12:58:13 +03:00
presets
tests fate-mxf-probe-applehdr10: Ignore endianness 2020-10-12 20:21:36 +02:00
tools tools/target_dec_fuzzer: remove calls to avcodec_register*() 2020-10-19 12:07:49 -03:00
.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 '899ee03088d55152a48830df0899887f055da1de' 2019-03-14 15:53:16 -03:00
Changelog VP9 Profile 2 VDPAU support 2020-10-08 11:18:14 -07:00
configure configure: check for nvdec/cuvid AV1 support 2020-10-15 23:25:05 +02:00
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: remove my public key fingerprint 2020-09-20 15:08:18 -08:00
Makefile Add support for building fuzzer tools for an individual demuxer 2020-10-12 21:01:48 +02:00
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.