1410771 - 'Green screen' while playing YouTube video in Firefox on Android x86 version 7.1.2 "Nougat"

Status: RESOLVED FIXED

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

Description

[reinhart_previano]

Attachment: Green screen while playing YouTube video in Firefox.

User Agent: Mozilla/5.0 (Android 7.1.2; Tablet; rv:58.0) Gecko/58.0 Firefox/58.0
Build ID: 20171022100051

Steps to reproduce:

This may be a device-specific bug. See attachment for Android build details.
1. Visit a YouTube video


Actual results:

While the audio is playing, the video loads a green screen regardless of what video is being played.


Expected results:

The 'green screen' should not occur.

Comment 1

[reinhart_previano]

Attachment: The same video playing in Chrome.

Comment 2

[reinhart_previano]

Attachment: Android build details

Comment 3

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

Reinhart, thanks a lot for reporting this bug. Could you please help capture the device log with 'adb logcat' and upload it for us to investigate?

Comment 4

[Blake Wu [:bwu][:blakewu]]

Probably the cause of this bug might be the same to Bug 1406218.

Comment 5

[reinhart_previano]

Attachment: logcat.txt from the device.

Comment 6

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

Thanks for the log, Reinhart.

It seems "OMX.ffmpeg.h264.decoder" fail to scale the output when adaptive playback is on [1]. Will add the device ID to the blacklist to workaround it.


[1] https://groups.google.com/forum/#!msg/android-x86/88764UQdAOo/EOnQKBjxBgAJ

Comment 7

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

Attachment: Bug 1410771 - extend adaptive playback blacklist for some Samsung tablet.

Review commit: https://reviewboard.mozilla.org/r/192714/diff/#index_header
See other reviews: https://reviewboard.mozilla.org/r/192714/

Comment 8

[James Cheng[:JamesCheng]]

Comment on attachment 8921697 [details]
Bug 1410771 - extend adaptive playback blacklist for some Samsung tablet.

https://reviewboard.mozilla.org/r/192714/#review197898

Comment 9

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/f6f6cee6c445
extend adaptive playback blacklist for some Samsung tablet. r=JamesCheng

Comment 10

[reinhart_previano]

In addition, I am currently running Android 7.1.2 rc-1 from the Android-x86 project (http://www.android-x86.org/) on a Samsung laptop (the device which this bug occurs on). As Android-x86 detects laptops as 'tablets' (due to large screen size), this device is therefore detected as "Samsung Tablet" (while my device do not run Samsung's default Android/TouchWiz ROM). I think it is important to check on other Android-x86 installed devices have similar problems to the bug I reported, as well add an option in Firefox Settings to toggle adaptive playback.

Comment 11

[reinhart_previano]

Edit: I think it is important to check on other Android-x86 installed devices whether they have similar problems to the bug I reported, as well as add an option to toggle adaptive playback in Firefox Settings.

Comment 12

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

https://hg.mozilla.org/mozilla-central/rev/f6f6cee6c445