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Ruk DoeandClaude Opus 5.5
320b671d05
The new sample sub/aribcaption_ruby.ts (1316 bytes, synthetic) is an
ARIB STD-B24 profile A caption stream. Small size (SSZ) text is decoded
as a ruby region. Caption glyphs are one DRCS pattern and ruby is an
alphanumeric character that is never drawn with ignore_ruby, so the
results do not depend on installed fonts:
t=2s CS + caption
t=3s CS + ruby only
t=4s CS + ruby line above a caption line
t=5s ruby only, without CS
With ignore_ruby=1, only CS clears, ruby is not drawn, and a caption
that is all skipped ruby without CS produces no event:
bitmap: 2s 1 rect, 3s clear, 4s 1 rect (the one caption line)
ass, multi rect: 2s, 3s clear, 4s
ass, single rect: same events, checked with the dialogue text so the
4s position comes from the caption line, not the
skipped ruby above it
Before the fixes in this series, the bitmap test overflows the rects
array at 4s, the multi rect ass test misses the 3s clear, and the single
rect ass test has an extra 5s event and the ruby position.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DdDiDRusmi6eD7qSrKBjHb
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 means to alter decoded audio and video through a directed graph of connected 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 Forgejo or 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.
See https://ffmpeg.org/developer.html for more information.