- Test tree shaking
- Throw if edit list detected
- Add the new audio codecs to muxers
- Mov muxer!!! Only mov can hold PCM audio, MP4 cannot
- A stream source?? Or like a callback-driven source
- onHeader, etc callbacks for Matroska
- https://github.com/Vanilagy/mp4-muxer/issues/83 tell him it's possible now