v1.52.0

facebookresearch/omnilingual-asrv1.52.0Jul 30, 2026by Vanilagy

AI Summary

A major feature release introducing quantizer support, expanding the Quality class, and deprecating the bitrate field.

Key Highlights

  • Added quantizer support for encoders, enabling constant-quality encoding.
  • Expanded the Quality class to accept arbitrary levels, specify bitrate modes, and concrete per-codec quantizer levels.
  • Deprecated bitrate fields across the API in favor of the new quality field.
  • Fixed video/audio decoders not being closed in certain error situations.

Breaking Changes

  • Deprecated 'bitrate' fields across the API; use the new 'quality' field instead.

New Features

  • Quantizer support for encoders with automatic mode selection for subjective qualities.
  • Expanded Quality class capabilities (arbitrary quality levels, bitrate specification, concrete quantizer levels).
  • Adjusted @mediabunny/server to properly forward quantizer settings to libavcodec.

Full Release Notes

- Added quantizer support for encoders, enabling constant-quality encoding. Quantizer mode is used automatically if you use subjective qualities; no code changes needed. (#448)
- Expanded the `Quality` class: Can now take in an arbitrary quality level, specify bitrate and bitrate mode, and specify a concrete per-codec quantizer level
- Adjusted `@mediabunny/server` to properly forward quantizer settings to libavcodec
- Deprecated `bitrate` fields all across the API; use the new `quality` field instead
- Fixed video/audio decoders not being closed in certain error situations (#446)
- Fixed promises hanging indefinitely sometimes when calling Input.dispose()
- Improved encoder error handling to reduce "Sample wasn't closed" warnings
- Fixed ISOBMFF muxer not labeling video tracks as containing an alpha track (for example, with ProRes 4444) (#450)