Bug 205103 – Safari won't respect system's input device when make a RTP call using appr.tc

• Status: NEW
• Component: WebRTC

[Jimmy]

Safari (12.1.1) won't respect the System's (Mac OS 10.14.5) input device when using appr.tc

Reproduce steps:
1. Install Virtual audio device (Soundflower) on Mac OS 10.14.5
2. Select Soundflower as input device in system perferences
3. Open appr.tc in Safari
4. Create a room (Party A)
5. Join the room from another PC using Chrome. (Party B)
6. Play audio using sox from Soundflower


Expected behavior:
After step 5, Party B should hear nothing because the input device of Party A is a virtual audio device
After step 6, Party B should hear the voice played by sox

Actual behavior:
After step 5, Party B can hear voice from Party A's internal microphone
After step 6, Party B can still hear voice from PartyA's internal microphone but not the voice from sox


Same test on Chrome and Firefox, Chrome and Firefox will respect the input choice in system preferences.

[Radar WebKit Bug Importer]

<rdar://problem/96314938>