Open Bug 733293 Opened 13 years ago Updated 2 years ago

High-resolution WebM video on YouTube stutters

Categories

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

Product:
Core
Component:
Audio/Video: Playback
Platform:
x86_64
macOS
Type:
defect

Tracking

()

People

(Reporter: jruderman, Unassigned)

References

Details

(Whiteboard: [Snappy:P1] [platform-rel-Youtube]) 

1. Ensure Flash is disabled or http://www.youtube.com/html5 is enabled.
2. http://www.youtube.com/watch?v=FG0fTKAqZ5g
3. Turn off the lights.
4. Full-screen.
5. 1080p.

Result: Video stutters every few seconds.

Worse in my main profile, but happens in a new profile as well. Playback is almost smooth in Google Chrome.

Doesn't seem to be due to GC/CC.

This is a fairly new MacBook Pro. The screen is 1680x1050.

  Graphics

        Vendor ID
        0x1002

        Device ID
        0x6741

        WebGL Renderer
        ATI Technologies Inc. -- ATI Radeon HD 6750M OpenGL Engine -- 2.1 ATI-7.18.11

        GPU Accelerated Windows
        1/1 OpenGL

        AzureBackend
        quartz
We currently don't actively prevent the browser from doing stuff in background during video.
Depends on: 712478
Whiteboard: [Snappy] → [Snappy:P1]
Component: Audio/Video → Audio/Video: Playback
platform-rel: --- → ?
Whiteboard: [Snappy:P1] → [Snappy:P1] [platform-rel-Youtube]
platform-rel: ? → ---
Severity: normal → S3
You need to log in before you can comment on or make changes to this bug.