I've got an issue with my app and I could reproduce it on this sample: https://webrtc.github.io/samples/src/content/getusermedia/record/
During a phone call, if I open a tab with a video with audio element, the video automatically pause (and can see a pause event on the element)
This does not happen if the video element was loaded and played before the phone call start, or if the video has no audio.
Is this a normal behaviour, and can it be tracked (by an event other than the pause one) ? Is there any way to know there is a phone call ongoing, or any way to restart the video during the phone call (element.play() works, but a pause event immediately happens) ?
To reproduce:
what (likely) happens is that the video element (which needs to synchronize audio and video) is waiting for audio data but doesn't get any from the underlying layers when a phone call is active.
A possible workaround would be to change how you display audio and video, each in their own elements with MediaStream as srcObject that only have the respective audio and video track of the original stream.
Can you file a specification issue on https://github.com/w3c/mediacapture-main/ please? This is a rather interesting case that warrants some discussion.