1136706 - A low frame rate on Youtube's 60FPS videos without HWA

Status: RESOLVED DUPLICATE of bug 1133633

(Core :: Audio/Video, defect, P1)

Description

[akulle12]

60FPS videos on Youtube drop very many frames/stutter much without hardware acceleration.

Comment 1

[(mostly gone) XtC4UaLL [:xtc4uall]]

Please provide an example (link).

Comment 2

[akulle12]

Just any video. This for example: https://www.youtube.com/watch?v=_zPm3SSj6W8

Comment 3

[Anthony Jones (:ajones, :kentuckyfriedtakahe, :k17e)]

Can you provide the information from about:support so we can get an idea of what hardware you're testing?

Comment 4

[Cheba]

Video stutters, visual image corruption.

Example video: https://www.youtube.com/watch?v=f9v_XN7Wxh8


Application Basics
------------------

Name: Firefox
Version: 39.0a1
Build ID: 20150325083046
Update Channel: nightly
User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:39.0) Gecko/20100101 Firefox/39.0
Multiprocess Windows: 0/2 (default: false)

Crash Reports for the Last 3 Days
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All Crash Reports

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Graphics
--------

Asynchronous Pan/Zoom: none
Device ID: 0x 46
GPU Accelerated Windows: 2/2 OpenGL (OMTC)
Vendor ID: 0x8086
WebGL Renderer: NVIDIA Corporation -- NVIDIA GeForce GT 330M OpenGL Engine
windowLayerManagerRemote: true
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Experimental Features
---------------------

Comment 5

[Anthony Jones (:ajones, :kentuckyfriedtakahe, :k17e)]

In reply to Cheba from comment #4)
> Video stutters, visual image corruption.
> 
> Example video: https://www.youtube.com/watch?v=f9v_XN7Wxh8

The original issue is a Windows issue. I can reproduce your issue on the same hardware so I filed bug 1149007.

Comment 6

[Jean-Yves Avenard [:jya]]

(In reply to Cheba from comment #4)
> Video stutters, visual image corruption.
> 
> Example video: https://www.youtube.com/watch?v=f9v_XN7Wxh8
> 

This will be fixed by bug 1153469. Now in 38 beta, 39 and nightly