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GMW/services
asepharyana 6ce784471e
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fix(gateway): repair Ogg page CRCs + deliver recordings as MP3
Root cause rekaman gak bisa dibuka: prism-media OggLogicalBitstream
dipanggil dengan crc:false (node-crc dihapus dari dependency tree) —
semua page Ogg punya checksum 0 — player strict (ffmpeg, iOS) tolak
dengan 'CRC mismatch / End of file'. Rekaman 13:11 terbukti CRC-invalid.

Fix:
1. recorder/oggCrc.ts (baru): recompute CRC-32 (RFC3533, poly 0x04c11db7,
   initial 0, MSB-first) tiap page OggS in-place — pure JS tanpa native dep.
2. segmentFinalizer.ts: panggil fixOggCrc sebelum upload/merge.
3. recorder/uploader.ts: transcode segment ke MP3 (libmp3lame 128k 48k
   stereo) sebelum upload tele — universal playback. filename+size DB
   di-update; source OGG tetap untuk transkripsi.
4. muxer.ts + recorder.ts: merged session file juga .mp3.

Verified: ffprobe baca segmen yang tadinya CRC mismatch, MP3 valid.
2026-08-01 16:05:51 +07:00
..