Update cpal to current version in symphonia-play

[tobx]

symphonia-play is using cpal = "0.13.3". The current version is cpal = "0.15.2". Updating cpal leads to errors here:

Symphonia/symphonia-play/src/output.rs

Line 217 in 82817dd

match config.sample_format() {

because cpal supports more sample formats now:
https://docs.rs/cpal/latest/cpal/enum.SampleFormat.html

I can easily adapt the code to use the other sample formats except i64 and u64 and as far as I understand that is because there is no implementation of RawSample for those.

What I do is return an error in those cases. I just started with audio programming so I am not really in a position to identify if this is an issue or not, but I thought I mention it here.

[pdeljanov]

Thanks for the heads up!

Returning an error seems like a reasonable solution for now. I don't think any consumer hardware would use those sample formats anyways.

However, cpal is a critical Rust audio crate, so we should probably consider adding those to Symphonia. Symphonia's SampleFormat is not marked at non-exhaustive though, so adding it without a semver bump could potentially cause breaks. So that part may have to wait.

[tobx]

Okay, thanks for the heads-up.