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Psychotoxical a4c400cc69 fix(audio): correctly parse iTunSMPB gapless info from older iTunes M4A files

M4A files store the iTunSMPB value behind a 16-byte binary 'data' atom
header. The previous parser took bytes directly after the ASCII key,
landing in the binary header and producing a corrupted parts array
(total_valid=348 instead of ~13M samples), which caused take_duration
to exhaust the source in ~8ms — silent no-playback.

Fix: search for the " 00000000 " sentinel within 128 bytes of the key
to locate the actual value string, falling back to the old offset for
ID3v2/MP3 files where no binary header exists.

Also patches symphonia-format-isomp4 (local crate under patches/) to:
- Tolerate SL descriptor predefined=0x01 (older iTunes M4A)
- Convert descriptor.unwrap() panic to a proper decode error
- Gracefully skip malformed trak atoms (e.g. MJPEG cover-art streams)
  instead of failing the entire probe

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

2026-04-07 18:54:10 +02:00

src

fix(audio): correctly parse iTunSMPB gapless info from older iTunes M4A files

2026-04-07 18:54:10 +02:00

.cargo_vcs_info.json

fix(audio): correctly parse iTunSMPB gapless info from older iTunes M4A files

2026-04-07 18:54:10 +02:00

.cargo-ok

fix(audio): correctly parse iTunSMPB gapless info from older iTunes M4A files

2026-04-07 18:54:10 +02:00

Cargo.lock

fix(audio): correctly parse iTunSMPB gapless info from older iTunes M4A files