Bug 33359 - Scrolling through pages with embedded html5-videos is not so smooth
Summary: Scrolling through pages with embedded html5-videos is not so smooth
Status: UNCONFIRMED
Alias: None
Product: WebKit
Classification: Unclassified
Component: New Bugs (show other bugs)
Version: 528+ (Nightly build)
Hardware: Macintosh Intel OS X 10.5
: P2 Normal
Assignee: Nobody
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2010-01-07 18:03 PST by Mehmet
Modified: 2010-01-07 18:03 PST (History)
0 users

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Description Mehmet 2010-01-07 18:03:35 PST
Hello Webkit-Team,

srolling with the trackpad (two-finger-scrolling) through pages with embedded html5-videos is not so smooth. Against it scrolling through pages with embedded flash is/feels very smooth!

The html5-video is flickering and the scroll-behaviour feels not smooth. 

CPU-usage while watching the video is 35% and when I'm scrolling with the trackpad the cpu-usage goes up to 80%.

Webkit: WebKit-SVN-r52951
OS: Mac OS 10.5.8
Hardware: Macbook 3,1

Reproducable always.

Example Links: 

1.) http://www.apple.com/imac/the-new-imac/#large
2.) http://www.youtube.com/html5
3.) http://openvideo.dailymotion.com/video/xbraxz_mini-concept-beachcomber-interior-d_auto

Thanks in advance.
Mehmet