Status of OPUS Codec

[perfectmak]

What is the status of work on the opus Codec? I see it marked as next in the readme, is there an ETA for release?

[pdeljanov]

Work on Opus hasn't started yet, but it's the next item on the road map.

Before I can begin work on Opus the OGG branch must be merged. However, before I can do that I first need to re-work some of Sonata's public API. This work is about 80% complete.

[perfectmak]

Okay. Thanks for the update. I'll keep an eye on the repository in the meantime.

[Gelbpunkt]

Hi, any status updates on this? I'd love to replace libopus with a pure rust thing in one of my projects and Symphonia looks most promising.

[pdeljanov]

Hi @Gelbpunkt,

The prerequisite work noted above has been completed, however I'm afraid to say that not much progress has been made on the Opus decoder itself.

I'm on a bit of a temporary hiatus from my personal projects at the moment so I wouldn't expect anything soon.

[Beiri22]

Some time has passed; any news on opus?

[pdeljanov]

Sorry to say, but there's not much to report. 😕 Haven't had the time to do much beyond bug fixes. I'd suggest looking for alternative crates if you need Opus support.

[thinking-tower]

Hey @pdeljanov, can I give this a go?

[pdeljanov]

@thinking-tower, please, go ahead. You can use the opus branch to get you started. It contains all the required boilerplate and gets you to a point where you can work on decoding the audio packets. It just needs to be brought up-to date first. Best of luck!

[thinking-tower]

@pdeljanov I'm still working on this ticket btw! Thanks for your patience 😄

[pdeljanov]

Hey @thinking-tower, that's good to hear! Are you running into any challenges or issues?

Opus is a pretty complex codec, so feel free to submit multiple PRs to the opus branch. I believe that Opus will prompt some changes in symphonia-core, for example, adding arithmetic decoding to the BitReaders, or more DSP routines to the dsp module. We could collaborate on these changes if there is a central branch we can work off of.

[thinking-tower]

@pdeljanov At the moment, not any issues yet. I like the idea of splitting up the commits into multiple PRs!

[darksv]

Hi @thinking-tower! Are you actively working on a decoder for Opus? I would like to help with the implementation.