v1.55.2

• Added support for ISOBMFF files carrying Annex B AVC/HEVC (#468)
• Made missing WebCodecs error message more useful in insecure browser contexts (#466)

v1.55.1

Redeploy due to missing provenance.

See v1.55.0.

v1.55.0

This update adds a new audio codec, DTS! This codec is the primary audio codec used on Blu-ray discs and is popular in the feature film and home cinema space.

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• Added the DTS audio codec under the codec identifier 'dts'
• Added support for reading & writing DTS to ISOBMFF, Matroska, and MPEG-TS files
• Added @mediabunny/dts, a new extension package that provides a fast DTS audio decoder and encoder polyfill
• Fixed double decoder close error

v1.54.0

• Added InputVideoTrack.computeFrameRateMetrics() for retrieving detailed video frame rate information. See more here.

v1.53.1

• Added a workaround for a WebKit bug where TypedArray offsets are not respected in FileSystemWritableFileStream (#459)

v1.53.0

• Writing HLS with single file mode + fMP4 segments will now produce a standalone-valid segments file, independently playable
• Added new track metadata to enable writing zero-packet tracks (decoderConfig & primingPacket)
• Fixed HLS writing an incorrect init segment if segments are sparse (not all tracks occur in every segment)
• Fixed encodability checks throwing on Safari in some cases (#456)
• UrlSource now honors maxCacheSize even if the server responds with 200; plus it slows down response consumption in this case (#457)
• Improved VideoSample mipmapping for resizing
• Improved video/audio decoder config validation
• Fixed Input.getFirstTimestamp() for files with zero-packet tracks
• Fixed incorrect traf indices being written in fMP4 files with sparse fragments (not all tracks occur in every fragment)
• Fixed rare MPEG-TS demuxer assertion error

v1.52.3

• Changed alternate group assignment in ISOBMFF muxer to work around WebKit bug (#454)
• Fixed occasional assertion failure when not awaiting Output.start()

v1.52.2

• Improved quality of canvas-based video resizing

v1.52.1

• Fixed ISOBMFF "Compressor name" not being written as a Pascal-style string

v1.52.0

• 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)