1060130 - mp4/h.264 playback on Mavericks results in blank video output

Status: RESOLVED WORKSFORME

(Core :: Audio/Video, defect)

Description

[Mike Tomko [:kibaurufu]]

Steps to reproduce:
----
 1. Visit https://www.youtube.com/watch?v=IbzkCh2QoG0 while using the youtube html5 player.
 2. Begin playing video



What happens:
----
Video begins playing and audio can be heard, but video output is blank



What is expected:
----
Video should be visible

Comment 1

[sjw]

WFM. Can you reproduce with a new profile?

Comment 2

[Mike Tomko [:kibaurufu]]

Yes. I was able to reproduce the issue in a new profile.

Comment 3

[Mike Tomko [:kibaurufu]]

Attachment: about:support printout

Attaching my about:support printout for further system info.

Comment 4

[Paul Silaghi, QA [:pauly]]

Do you have media.mediasource.enabled=TRUE ?

Comment 5

[Mike Tomko [:kibaurufu]]

Yes I do.

Setting media.mediasource.enabled=FALSE with media.mediasource.ignore_codecs=FALSE sometimes causes this crash, https://crash-stats.mozilla.com/report/index/794733cb-b870-47be-ae4c-d7c702140902 when attempting mp4 playback. When it doesn't crash, video playback is still blank.

Setting media.mediasource.enabled=FALSE and unsetting media.mediasource.ignore_codecs (default states) also still results in blank video playback.

As an aside, wouldn't that have been caught by using a new profile?

Comment 6

[Mike Tomko [:kibaurufu]]

Latest Nightly seems to have resolved this.