v1.52.0
junegunn/fzfv1.52.0Jul 30, 2026by Vanilagy
AI Summary
Major API update for video encoding introducing quantizer support and deprecating bitrate fields.
Key Highlights
- Added quantizer support for encoders, enabling constant-quality encoding
- Expanded `Quality` class to accept arbitrary quality levels and specific per-codec quantizer levels
- Deprecated `bitrate` fields across the API; use the new `quality` field instead
- Fixed video/audio decoders not being closed in error situations
- Improved encoder error handling to reduce warnings
Breaking Changes
- Deprecated `bitrate` fields all across the API; use the new `quality` field instead
New Features
- Quantizer support for encoders
- Expanded Quality class
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)