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Pierre-Anthony Lemieux 74e4382442 avformat/mxfdec: fix frame wrapping detection for J2K essence container 
For JPEG 2000 essence, the MXF input format module currently uses the value of
byte 14 of the essence container UL to determine whether the J2K essence is
clip- (byte 14 is 0x02) or frame-wrapped (byte 14 is 0x01). Otherwise it
assumes an unknown wrapping.

Additional wrappings are documented in SMPTE ST422:2019:

0x03: Interlaced Frame, 1 field/KLV
0x04: Interlaced Frame, 2 fields/KLV
0x05: Field-wrapped Picture Element
0x06: Frame-wrapped Picture Element

And these should also be handled as frame wrapped content.

Signed-off-by: Pierre-Anthony Lemieux <pal@sandflow.com>
Signed-off-by: Marton Balint <cus@passwd.hu>
2021-07-29 22:38:02 +02:00
compat avfilter: compress CUDA PTX code if possible 2021-06-22 14:05:44 +02:00
doc avutil/common, macros: Move several macros from common.h to macros.h 2021-07-29 22:02:05 +02:00
ffbuild avfilter: compress CUDA PTX code if possible 2021-06-22 14:05:44 +02:00
fftools ffmpeg: fix order between field order autodetection and override 2021-07-25 22:40:49 +03:00
libavcodec avcodec/noise_bsf: add expr support 2021-07-29 22:05:11 +05:30
libavdevice avformat/internal: Move ff_read_line_to_bprint_overwrite to avio_internal.h 2021-07-29 22:02:05 +02:00
libavfilter avfilter/avf_showcqt: switch to TX FFT from avutil 2021-07-27 21:16:28 +02:00
libavformat avformat/mxfdec: fix frame wrapping detection for J2K essence container 2021-07-29 22:38:02 +02:00
libavutil avutil/error: Include macros.h for MKTAG 2021-07-29 22:02:05 +02:00
libpostproc postproc/postprocess: Remove legacy cruft 2021-07-29 22:02:06 +02:00
libswresample (postproc|swresample)/version: Don't include libavutil/avutil.h 2021-07-29 22:02:05 +02:00
libswscale avutil/internal, swresample/audioconvert: Remove cpu.h inclusions 2021-07-22 14:33:45 +02:00
presets
tests avcodec/noise_bsf: add expr support 2021-07-29 22:05:11 +05:30
tools tools/target_dec_fuzzer: Adjust threshold for VP6F 2021-07-28 19:15:26 +02:00
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.gitignore avfilter: compress CUDA PTX code if possible 2021-06-22 14:05:44 +02:00
.mailmap mailmap: add entry for myself 2021-03-09 02:09:55 +00:00
.travis.yml
Changelog avfilter: add afwtdn filter 2021-07-24 12:24:40 +02:00
configure avfilter/avf_showcqt: switch to TX FFT from avutil 2021-07-27 21:16:28 +02:00
CONTRIBUTING.md
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MAINTAINERS avformat: add Argonaut Games CVG demuxer 2021-05-12 20:25:50 +10:00
Makefile libavresample: Remove deprecated library 2021-04-27 10:43:13 -03:00
README.md
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.