1504998 - Bluetooth microphone is not recordable after the first call to getUserMedia

Status: RESOLVED DUPLICATE of bug 1489052

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

Description

[naktinis]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:62.0) Gecko/20100101 Firefox/62.0

Steps to reproduce:

1. Paired a bluetooth Sennheiser HD 4.50BTNC headset
2. Load https://mdn.github.io/web-dictaphone/ (but also reproducible with other code using navigator.mediaDevices.getUserMedia, e.g. RecordRTC library)
3. Click "Record" and give the permission to record via the bluetooth headset
4. Wait for a while and click "Stop"


Actual results:

Nothing was recorded. And nothing can be recorded by repeatedly clicking Record/Stop until I reload the page.

Importantly, note that:
1. If I choose to record via my laptop microphone everything works fine
2. After granting the permission for the first time, and AFTER getUserMedia call's its' promise's "then" I can hear that bluetooth microphone physically activates (it loops back to the headphones). No amount of waiting with setTimeout inside getUserMedia's "then" can make it recordable - it's like the getUserMedia simply returns a broken stream.
3. If I quickly reload the page while the microphone is physically activated - I can record via bluetooth microphone just fine.
4. If I close the tab, the microphone is deactivated after a few seconds. When I open the tab again while the microphone is deactivated - the bug is reproducible again.


Expected results:

It should have recorded.

Works as expected on Chrome 70.

Comment 1

[Jan-Ivar Bruaroey [:jib] (needinfo? me)]

Naktinis, thanks for reporting. Did this used to work better in an earlier version of Firefox, do you know? Are you on Mojave?

Also, could you try with https://jsfiddle.net/jib1/3ykab1e2/show and try to mute and unmute the audio to see if that recovers it?

Comment 2

[Jan-Ivar Bruaroey [:jib] (needinfo? me)]

(In reply to naktinis from comment #0)
> 3. If I quickly reload the page while the microphone is physically activated- I can record via bluetooth microphone just fine.
> 4. If I close the tab, the microphone is deactivated after a few seconds.
> When I open the tab again while the microphone is deactivated - the bug is
> reproducible again.

Alex, do you have a bluetooth headset to confirm with and triage this?

Comment 3

[Paul Adenot (:padenot)]

This is probably something that jya and I have fixed some time ago. Reporter, can you try in Nightly or Beta ?

Comment 4

[Alex Chronopoulos [:achronop]]

It looks like dup of Bug 1489052. I have tested that scenario and should work now. Please check on Nightly and if it still not working I'll try to repro.

Comment 5

[naktinis]

After Firefox update 63.0.1 (maybe even 63) I can no longer produce this. Also seems to work fine on nightly. I believe it is safe to close this. Thank you for looking into it.