1677843 - MediaRecorder doesn't work on peer connection video on android

Status: RESOLVED DUPLICATE of bug 1669551

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

Description

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

STRs:

1. On android nightly (84), open https://jsfiddle.net/jib1/fuhykesw/show, click Run this fiddle and Allow camera + microphone
2. Wait 10 seconds while it is recording.

Expected results (works on desktop and in Chrome for Android):

checking
connected
Recording 10 seconds
Playing video/webm; codecs="vp8, opus" recording

Video and audio recording plays.

Actual results:

checking
connected
Recording 10 seconds

Nothing plays

Workaround:

If we don't send the video & audio through a peer connection first then everything works: https://jsfiddle.net/jib1/pkc16k9r/show

Also, audio by itself works fine. It's the video that seems to be a problem.

Comment 1

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

Note if you try to repro on android in 82 or earlier, you'll run into bug 1616729.

So to repro in 82 I use https://jan-ivar.github.io/dummy/record_peer.html and https://jan-ivar.github.io/dummy/record_gum.html respectively instead (make sure to click somewhere on the page to defeat autoplay blocking). So not a regression.