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74e4382442
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>
FFmpeg README
FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.
Libraries
libavcodecprovides implementation of a wider range of codecs.libavformatimplements streaming protocols, container formats and basic I/O access.libavutilincludes hashers, decompressors and miscellaneous utility functions.libavfilterprovides a mean to alter decoded Audio and Video through chain of filters.libavdeviceprovides an abstraction to access capture and playback devices.libswresampleimplements audio mixing and resampling routines.libswscaleimplements 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,ismindexandqt-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.