1386189 - When headphones are plugged in, video playback stops & cannot be resumed

Status: RESOLVED DUPLICATE of bug 1335512

(Core :: Audio/Video: cubeb, defect)

Description

[u595648]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:54.0) Gecko/20100101 Firefox/54.0
Build ID: 20170628075643

Steps to reproduce:

1. Start Firefox 54.0.1 (on MacBook Pro 13" Mid 2009 with OS X 10.9.5)
2. Open any Youtube video (e.g. https://www.youtube.com/watch?v=WyGq6cjcc3Q)*
3. Unplug headphones**
4. Try clicking play
5. Try reloading the page
6. Try opening any other Youtube video
7. Quit Firefox and restart, try again

* Same results with any video on Netflix or any webm-file
** Same results the other way around (plugging in headphones if not plugged in before)


Actual results:

2. Video playback starts
3. Video playback stops as soon as headphones are unplugged
4. Does not resume when clicking play
5. Does not play after reloading the page
6. Any other video does not play
7. Only after restarting Firefox videos can be played again


Expected results:

3. (Unsure if video playback stopping when unplugging headphones might be an intentional feature, if not: video playback should not stop)
4. Video playback should resume when clicking play