v1.50.9

OpenMOSS/MOSS-TTSv1.50.9Jul 18, 2026by Vanilagy

AI Summary

A maintenance release addressing bugs in audio/video codec support, container handling, and worker stability within the FFmpeg.wasm library.

Key Highlights

WAVE demuxer now throws immediately for unsupported formats.
Added 64-bit float sample format support for WAVE files.
Fixed incorrect duration computation for multi-frame Opus packets.
Fixed nested workers randomly shutting off in Firefox.

New Features

64-bit float (float64) sample format support for WAVE.

Full Release Notes

- WAVE demuxer now throws immediately for formats it doesn't support (#440)
- Added read/write support for 64-bit float sample format for WAVE
- Fixed incorrect duration computation for multi-frame Opus packets (#439)
- Fixed nested workers randomly shutting off in Firefox (#435)
- Fixed writing WebVTT in MP4 creating an assertion error (#441)
- Fixed missing BlockDuration when writing WebVTT into Matroska (#442)
- Make sure video/audio samples are always closed in the Conversion API, even during error cases