* Account for multi-frame Opus packets when computing packet duration
parseOpusTocByte only read the config field of the TOC byte and always
assumed a single frame per packet. Per RFC 6716 section 3.2, a packet may
carry 1, 2 or an arbitrary number of frames, encoded in the two low bits of
the TOC byte (plus the frame count byte for code 3), and its duration is the
frame duration times the frame count.
As a result, the Ogg muxer wrote granule positions that advanced slower than
the actual audio. Chromium's MediaRecorder packs three 20 ms frames per Opus
packet, so remuxing WebM/Opus to Ogg/Opus produced files declaring a third of
their real duration: a 5.7 s recording ended with a final granule position of
99840 (2.08 s). Decoders that trust the container then truncate the audio.
* Clean up
---------
Co-authored-by: Vanilagy <[email protected]>
* ac3/eac3 detection
* fix tests
* review pass + follow codebase comments style
* Add ac3/eac3 to docs
* WIP mpeg-2
* Set registration_descriptor
* add support for ac3 system b in mpeg-ts
* Update docs with ac3 in .ts support
* fix formatting
* Remove default to fix linter
* Add eac3 to mpeg-ts
* fix formatting
* Fix failing test
* Refactor AC3/EAC3 code a little
---------
Co-authored-by: Vanilagy <[email protected]>
* Add support for reading transparent Matroska and implement alpha side data & decode
* Few fixes
* Implement alpha encoding
* Gracefully handle inability to acquire WebGL context, properly clean up WebGL contexts
* Improve touch device detection
* Test test
* Test test #2
* Test test 3
* Test test 4
* Test test 5
* Test test 6
* Test test 7
* Test test 8
* Test test 9
* Test test 10
* Test test 11
* Test test 12
* Test test 13
* Test test 14
* Test test 15
* Test test 16
* Test test 17
* Test test 18
* Test test 19
* Test test 20
* Fix type errors, improve MetadataTags docs
* Do a bunch of docs work
* Test test?
* "Unexpected only modifier 🤓"
* Add InputVideoTrack.canBeTransparent()
* Some clean-up
* Adjust CI to be less spammy in PRs
* Fix broken license headers
* add a test
* recognize as input format
* scaffold flac demuxer
* implement getting metadata
* Implement mime type
* read all metadata + deduplicate stubs
* Read first packet
* copyright headers
* read the first packet
* Get entire first packet, work on advancing
* iterate over all samples
* testable with bun
* stub out metadata support
* parse descriptive metadata
* All in 1 file
seems more appropriate to the philosophy
* some parameters are not needed anymore all within 1 class
* skip over bytes we are sure are not the syncword
* run prettier
* timestamp is determined based on passed blocks, not maximumBlockSize
* no binary search needed!
* simplifications
* Finish demuxer reading sequentially
* more tests + add a file with a seektable
* don't throw if (this.audioInfo.minimumBlockSize !== this.audioInfo.maximumBlockSize
* Add docs
* Update format compatibility table
* Simplification
* confirm conversion is working
* Finish
* Resolve TODO comment
* Support images (read-only)
* Returning description as Uint8Array
* Cleanup of demuxer
* Misc renames
* Object on same line
* Resolve first batch of comments
* Throw errors on corrupt blocks, correctly use requestSlice()
* Fix description field
* Explain why last frame is a bit shorter
* Add FLAC to README
* Put track backings below demuxer
* convert to methods
* Reorder container checking
* getBlockSize() -> readBlockSize()
* bitStream -> bitstream
* better naming for bytes
* use .skip()
* Don't return blockSize twice in readFlacFrameHeader
* Use enum + switch to distinguish Flac block types
* Use else-if
* Use else-if
* Compressed switch statement
* readCodedNumber
* Update flac-misc.ts
* We don't need the bits variable at all
* reorder functions in flac-demuxer
* Handle gracefully not being able to load another sample
* Update flac-demuxer.ts
* blockingbit null
* use async instead of promise.resolve
* use binary search
* Replace recursion with while loop
* Add mutex to getPacket()
* Load more data not in getPacketAtIndex, but outside
* Apply suggestion from @Vanilagy
Co-authored-by: David P. <[email protected]>
* computeDuration() reads last packet
* Update flac-demuxer.ts
* share vorbis comment reading logic
* reuse vorbis comment writing logic, set vendor always to "Mediabunny"
* flush after writign
* Use FileSlice.tempFromBytes
* assert !== null
* fixing nitpicks
* apply suggestions
* fix ogg
* We are now muxing images
* apply suggestion
* Update src/flac/flac-muxer.ts
Co-authored-by: David P. <[email protected]>
* apply suggestion
* readSampleRate()
* seek outside writeHeader()
* mention vorbis metadata + add to metadatatags comment
* should be able to -> can
* Add test in metadata tags
* Add test for packets being byte identical after remuxing
* compare to null
* no casting to uint8array
* make test pass
* Update flac-muxer.ts
* Call validateAudioChunkMetadata() and validateAndNormalizeTimestamp()
* `onFrame` option
* emit frames using onFrame
* Run prettier over files
* Fix FLAC PICTURE block logic, small other changes
* Update docs
* Remove .only modifier
* fix remuxing and add test
* Don't throw error if parsing fails in header, since hitting a syncword might just be coincidential
* Fix remaining type errors
---------
Co-authored-by: David P. <[email protected]>
Vanilagy