1157710 - Some MP4's stop audio / video in HTML5 in v 37.0.1 & 37.0.2

Status: RESOLVED INCOMPLETE

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

Description

[[e-mail]]

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:37.0) Gecko/20100101 Firefox/37.0
Build ID: 20150415140819

Steps to reproduce:

This happens on some videos, but not all.  I have a sample that I can share with a developer to replicate, but I can't share it publicly.  Please contact me at [e-mail] if you want to see the sample.

Steps:
1) Load the MP4 video either directly (with a http://somewhere.com/something.mp4) link, or with an HTML5 <video> tag.  Make sure it is using the HTML5 player.
2) Play the video from beginning to end.


Actual results:

Actual results:
1) Audio and video begin to play
2) Somewhere during playback, either video stops but audio continues, or audio stops but video continues.  (In our test video, see above, this happens about 80% of the time at one of two time indexes)

Tested on Firefox 37.0.1 & 37.0.2, Windows 7/64 bit, also same versions on a Mac.  Our test video did (and still does) work correctly in Firefox 31.6.


Expected results:

Expected:
1) Video and audio should play until the end of playback.

Comment 1

[[e-mail]]

Test video with reliable failure is available at http://buladean.com/frontline/

Please contact me for the password if you wish to see it.

Comment 2

[Loic]

We need a public testcase, could you edit a few sec of your video (or find a new one) and attach it to the bug?