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Ran 09 Jul 2026 07:53PM UTC

Files 204

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Committed 09 Jul 2026 07:52PM UTC coverage: 82.495% (-0.3%) from 82.745%

Job # 29045888110.1

Build Type

push

github

Committed by

tobbee

Commit Message

feat(vp8): parse VP8 frame header and mux VP8 IVF to mp4

Adds a vp8 package that parses the VP8 frame tag and key-frame header (RFC 6386 9.1): the
little-endian 3-byte tag (key_frame flag - inverted, so 0 means key - version, show_frame and
first_part_size) and, for key frames, the 0x9d012a start code and picture size. This gives
key-frame (random-access) detection and dimensions for muxing.

The ivf-to-mp4 example now also handles VP8: VP8 is always profile 0, 8-bit, 4:2:0 with no
in-band CICP colour info, so its vpcC uses unspecified colour (2) and undefined level (0),
matching ffmpeg. Reuses mp4.TrakBox.SetVPxDescriptor for the vp08 sample entry.

Verified: a muxed VP8 mp4 decodes cleanly in ffmpeg with keyframes at the GOP boundaries. The
frame-tag layout was cross-checked against real libvpx output and RFC 6386.

Coverage Stats

23488 of 28472 relevant lines covered (82.5%)

0.92 hits per line

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master: 82%

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Source Files on job 29045888110.1

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82%
master: 82%

README BADGES
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