1139844 - Firefox 37 on Android JB 4.2 shows black screen in frame after starting video on all tested websites while sound is played correctly

Status: RESOLVED FIXED

(Firefox for Android Graveyard :: Audio/Video, defect)

Description

[Sylvekx332]

User Agent: Mozilla/5.0 (Android; Mobile; rv:37.0) Gecko/37.0 Firefox/37.0
Build ID: 20150302192416

Steps to reproduce:

Get on website which lists videos for ex. Youtube and tapped on play button in video frame


Actual results:

Immediately after tapping, on video frame appeared loading symbol. In same time device (Samsung GT-i9060) started heavily lagging for a moment (approx 25 sec). Afterwards, loading symbol disappeared, screen on video frame turned black while sound begin to run properly. 


Expected results:

Video frame should display correct image. Device shouldn't lagging in time of the process.

Comment 1

[Sylvekx332]

ADDITIONAL INFO:
-The bug seems specific to firefox as videos work fine and smoothly on the default device browser and Google Chrome.
-There weren't any issues in FF35 stadard version
-It is replicable also on freshly reinstalled FF36 standard edition. 
-Changes in hardware/software acceleartion (media.stagefright.omxcodec.flags) in about:config doesn't seem to alleviate problem.
- Probably it is specific to h264/MP4 as on the http://people.mozilla.org/~atrain/mobile/tests/media.html VP9/webm works w/o issues in contrast to all listed h264/MP4 videos.

Comment 2

[James Willcox (:snorp) ([e-mail]) (he/him)]

Would you mind testing on Nightly? This bug appears to be specific to your device, but there were some recent fixes made there.

Comment 3

[James Willcox (:snorp) ([e-mail]) (he/him)]

You can download Nightly from http://nightly.mozilla.org/

Comment 4

[Sylvekx332]

Just tested on Nighlty edition and unfortunately same issue there.

Comment 5

[Sylvekx332]

Changing 'media.mediasource.enabled' value to 'true' on FF37.02b configuration page completely resolved problem.

Comment 6

[Sylvekx332]

After more extensive research I conclude that problem is still present on dailymotion.com/vimeo.com and test page from people.mozilla site mentioned above even after disabling 'media.mediasource.youtubeonly'. It

Comment 7

[Sylvekx332]

Its absent on youtube embeds and dircetly on the YouTube site.

Comment 8

[agrm]

I'm also having this problem with Firefox 36.0.1 on Android 4.2.2. On http://people.mozilla.org/~atrain/mobile/tests/media.html I can only play the VP9/webm video correctly, the h264/MP4 videos are black and only play sound. I've reported the problem here also https://support.mozilla.org/en-US/questions/1049703

Comment 9

[Sylvekx332]

Still replicable on latest nightly (40.0a1) and Firefox 37.0.

Comment 10

[Nicolae Albu]

I'm having the same problem on my Samsung S7580 (Broadcom chipset, like i9060).

Comment 11

[borish]

Same problem with FF 38.0.5 on Sony Xperia L (C2105) with Android 4.2.2.
Videos play with Chrome.

Comment 12

[borish]

In addition, changing 'media.mediasource.enabled' value to 'true' doesn't solve the problem for youtube videos.

Comment 13

[Sylvekx332]

After four months It's still unresolved for MP4 based videos (Samsung Galaxy Grand Neo/ Broadcom SoC). VP9 and flash works fine. Tested on Nightly  41.0A1 27 June

Comment 14

[Sylvekx332]

Finally resolved. Just got installed something which actually works, i.e. Chrome on all my devices.

Comment 15

[John Lin [:jhlin][:jolin]]

This is an OLD bug. Since media playback was heavily re-written and there is no similar bug reported for recent releases, I'll close this as fixed for now.