Support PCM WAV RF64 format

[parthkalavadia]

Does EXOPlayer supports PCM containerized in WAV with type - RF64?

[ojw28]

I don't think so, although it's probably not too difficult to add support. We would likely accept a high quality pull request that does so. Marking as an enhancement. A couple of useful resources:

1. Wikipedia page
2. Specification
3. Support RF64 files iluvcapra/wavinfo#3 (comment) might be useful for testing, although I didn't verify

[KasemJaffer]

I just created PR containing the support for RF64 wave files. Hopefully it gets reviewed and merged soon

#9543

[kim-vde]

I am closing this issue as the corresponding pull request has now been merged.