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Mode F: WAI envelopes as the samples of a fragmented MP4 track, written, read and checked against CTA-5005-B
http-delivery §11.7 and Appendix B had sample entries and no implementation. Now:

- wai-pack's modef writes a sequence of envelopes as one fragmented MP4 track in the
  structure of a CMAF track: a header whose wai1 or wai2 sample entry holds the track's
  waiC (the union and floor of §4.2, the highest MINOR), one media segment a piece, each
  sample one envelope byte for byte and a sync sample, a track file with its sidx, and an
  HLS media playlist naming the header by EXT-X-MAP, a piece with no object a gap.
- wai-rs's http_binding::modef describes a track of given envelopes and reads a header and
  its segments, or a track file, back to each envelope with its cid, every rule of
  Appendix B checked in its order with the reasons §13 now lists (modef_*).
- Appendix B gains the handler by media class, what waiC holds, the fragments, no
  encryption, the track file and the reader's order. A layer object is not a sample; a
  track carries the bases. The 4CCs stay unregistered and Mode F stays test material.
- §11.8: the session-data line and Mode F checked clause by clause against CTA-5005-B
  (January 2025), and the result written down.
- pack-conformance/modef/: five tracks, two track files, media playlists, a test
  multivariant playlist, and planted faults each refused with its reason; replayed by
  wai-pack modef check (every file again byte for byte), wai-rs tests/http_modef.rs, and
  modef_verify.py, a second implementation with its own box reader. modef_probe.py opens
  every track with a media prober. Every golden track and every object of the packaging
  and HTTP corpora round trip through Mode F to the same envelopes and cids.
- CI: a verifier step for wai-conformance (the reader's test, modef_verify.py among the
  independent verifiers); in wai-pack.yml the corpus check, modef_verify.py --self-test,
  and the tracks through ffprobe in the media job.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-11-10 14:26:36 -05:00
..
bin Mode F: WAI envelopes as the samples of a fragmented MP4 track, written, read and checked against CTA-5005-B 2026-11-10 14:26:36 -05:00
source wai-pack: the WAV reader forms 2 x channels without wrapping, and no header sizes a buffer 2026-10-05 09:03:36 -04:00
av1.rs wai packaging stack: #426, #438 and #452's GPU tier, squashed onto main 2026-10-24 20:31:28 -04:00
capcheck.rs wai-pack: packages of several components, and the composing sink's package packed by it 2026-11-09 12:58:33 -05:00
catalog.rs Every MoQ catalog we write is MSF's, wai-link is defined, and the catalog check holds MSF's own rules 2026-11-10 14:05:27 -05:00
classify.rs wai-pack: packages of several components, and the composing sink's package packed by it 2026-11-09 12:58:33 -05:00
cmaf.rs wai-pack: the packer and its verifier, with a supplied AV1 floor, CMAF, and HLS, DASH, MoQ and stage-view catalogs 2026-10-06 05:52:22 -04:00
cmaf_read.rs wai-pack: a sound track's Opus floor, supplied in the CMAF form 2026-11-09 15:21:55 -05:00
conformance.rs wai-pack: a still's reader inflates as zlib does; png_diff runs both readers 2026-10-09 13:42:54 -04:00
delivery.rs wai-pack: staged packages — refinement layers, stills, a piece's ladder, live windows and simulated delivery (W4-4) 2026-10-08 14:21:54 -04:00
encode.rs wai packaging stack: #426, #438 and #452's GPU tier, squashed onto main 2026-10-24 20:31:28 -04:00
fabric.rs CHANGELOG (GPU tier) to what was shown; wai-pack names the object domain (#452 review S4, S6, S7; #438 review N6) 2026-10-24 21:12:05 -04:00
fabric_attribution.rs wai-pack fabric attribution: the sole-user case tells the whole rail from a busy-time split (#438 review M4) 2026-10-25 14:18:21 -04:00
fabric_meter.rs wai-pack fabric meter: a type for what a span's join gives back 2026-10-25 03:57:14 -04:00
files.rs wai packaging stack: #426, #438 and #452's GPU tier, squashed onto main 2026-10-24 20:31:28 -04:00
fixture.rs wai-pack: packages of several components, and the composing sink's package packed by it 2026-11-09 12:58:33 -05:00
floor.rs CMAF floors: the init's av1C and size are the sequence header's (#426 review S2) 2026-10-24 21:09:39 -04:00
floor_decode.rs wai packaging stack: #426, #438 and #452's GPU tier, squashed onto main 2026-10-24 20:31:28 -04:00
golden.rs Every MoQ catalog we write is MSF's, wai-link is defined, and the catalog check holds MSF's own rules 2026-11-10 14:05:27 -05:00
lib.rs Mode F: WAI envelopes as the samples of a fragmented MP4 track, written, read and checked against CTA-5005-B 2026-11-10 14:26:36 -05:00
live.rs wai packaging stack: #426, #438 and #452's GPU tier, squashed onto main 2026-10-24 20:31:28 -04:00
modef.rs Mode F: WAI envelopes as the samples of a fragmented MP4 track, written, read and checked against CTA-5005-B 2026-11-10 14:26:36 -05:00
multi.rs wai-pack: a sound track's Opus floor, supplied in the CMAF form 2026-11-09 15:21:55 -05:00
multi_fixture.rs wai-pack: a sound track's Opus floor, supplied in the CMAF form 2026-11-09 15:21:55 -05:00
objects.rs wai-pack: staged packages — refinement layers, stills, a piece's ladder, live windows and simulated delivery (W4-4) 2026-10-08 14:21:54 -04:00
opus_floor.rs wai-pack: a sound track's Opus floor, supplied in the CMAF form 2026-11-09 15:21:55 -05:00
pack.rs Every MoQ catalog we write is MSF's, wai-link is defined, and the catalog check holds MSF's own rules 2026-11-10 14:05:27 -05:00
plan.rs wai-pack: staged packages — refinement layers, stills, a piece's ladder, live windows and simulated delivery (W4-4) 2026-10-08 14:21:54 -04:00
png.rs wai-rs: the still of packaging §5.7 moves from wai-pack into wai-rs (png_still) 2026-10-21 04:28:04 -04:00
policy.rs wai-pack: a sound track's Opus floor, supplied in the CMAF form 2026-11-09 15:21:55 -05:00
rendition.rs wai platform-encode: the source's frame rate as its header writes it, and corpus cases for a trailing access unit, a second SPS, the source's rate and range, and a misnamed object 2026-10-26 03:17:04 -04:00
scenecut.rs wai-pack: the segmenter's state is bounded by its lookahead and window 2026-10-05 09:20:07 -04:00
verify.rs Every MoQ catalog we write is MSF's, wai-link is defined, and the catalog check holds MSF's own rules 2026-11-10 14:05:27 -05:00