Recording permission check at SDK level

[hiroshihorie]

Check perms right before engine input is requested to be enabled.
CLT-1548

• Return custom error
• Also check AVAudioSession for iOS platforms

[ilo-nanpa]

it seems like you haven't added any nanpa changeset files to this PR.

if this pull request includes changes to code, make sure to add a changeset, by writing a file to .nanpa/<unique-name>.kdl:

minor type="added" "Introduce frobnication algorithm"

refer to the manpage for more information.

[pblazej]

• Starting a fresh app with try! AudioManager.shared.setRecordingAlwaysPreparedMode(true) looks like a deadlock (or the popup appears underneath)
• What's the reason for this change?

[hiroshihorie]

@pblazej I think you need to test with the LKTestHost app, it might be blocking at the permissions dialog. However, I believe I can disable this check for the Simulator.

The purpose of this check is that in some cases, the audio engine appears to start but only produces empty frames. I want to ensure the condition is valid, otherwise, an error should be thrown.

[pblazej]

@pblazej I think you need to test with the LKTestHost app, it might be blocking at the permissions dialog. However, I believe I can disable this check for the Simulator.

Hm, I'm testing with LiveKitExample (device) - I think it can be reproduced with any other (consumer) app.

[hiroshihorie]

@pblazej Ok, I think I can repro it. It happens when you call it from main thread before UI gets initialized maybe.
I'll see if there's a work around...