Will m4a format be supported?

[UlyssesZh]

Since m4a (audio-only MPEG-4) is a very common format for audio files, it would be a helpful improvement if audio-decode supports m4a.

[dy]

Unfortunately there's no easily available good implementation of decoder in JS/WASM (here ?), so if you find any - you're welcome to contribute. I'd recommend to use ffmpeg for now if there's high necessity.