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Andreas Rheinhardt bd076cacc3 avcodec/smacker: Improve header table error checks 
The extradata for Smacker video contains Huffman trees as well as a
field containing the size (in bytes) of said Huffman tree when stored
as a table. Due to three special values the decoder allocates more than
the size field indicates; yet when it parses the table it only errors
out if the number of elements exceeds the number of allocated elements
and not the number of elements as indicated by the size field. As a
consequence, there might be less than three elements available at the
end, so that another check for this is necessary.

This commit changes this: It is always made sure that the three elements
reserved to (potentially) use them to store the special values are not
used to store ordinary tree entries. This allows to remove the extra
check at the end.

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-09-18 01:32:46 +02:00
compat compat/cuda/ptx2c: remove shell loop; fix BSD sed compat 2020-06-01 22:10:41 -05:00
doc avdevice/decklink_dec: add support for querying RP188 High Frame Rate timecode 2020-09-13 18:06:54 +02:00
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/smacker: Improve header table error checks 2020-09-18 01:32:46 +02:00
libavdevice avdevice/decklink_dec: fix build with older SDK 2020-09-15 22:07:26 +02:00
libavfilter avfilter/vf_showinfo: add const to the AVFrameSideData instance 2020-09-17 18:52:11 +08:00
libavformat avformat/3dostr: make probing more robust 2020-09-17 23:47:10 +02:00
libavresample
libavutil avutil/cuda_check: add missing dynlink_loader.h include 2020-09-15 19:29:37 -03:00
libpostproc Bump minor versions after branching 4.3 2020-06-08 22:49:04 +02:00
libswresample swresample/rematrix: handle 22.2 as a 9 channel layout 2020-08-18 22:47:35 +03:00
libswscale swscale/x86/output: add missing AVX2 support preprocessor wrappers 2020-08-20 15:14:56 -03:00
presets
tests avformat/mxfdec: Read Apple private Content Light Level from MXF 2020-09-17 21:40:25 +02:00
tools 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
.gitattributes
.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 avformat: add Argonaut Games BRP demuxer 2020-09-14 14:38:45 +10:00
configure avcodec: add AV1 hardware accelerated decoder 2020-09-12 13:08:34 -03:00
CONTRIBUTING.md
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 avformat: add Argonaut Games BRP demuxer 2020-09-14 14:38:45 +10:00
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
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.