问题
I am in Windows 7 x64, using Chrome 22. When I view an MP4 video in the video tag, it appears blurry and low-contrast compared to the source video viewed locally in Media Player Classic.
A screen-measuring app shows that both players are displaying the video at exactly its native dimensions (400x300).
This appears to be a problem only with my installation of Chrome. The video looks perfect on other machines, Macs and PCs alike. I have tried reinstalling Chrome, disabling all extensions, uninstalling my codec pack (CCCP), and reinstalling my codec pack, all to no avail.
<video src="http://d.pr/f/Nq6a+" width="400" height="300" controls ></video>
jsFiddle
The video file
Comparison screenshots from my end:
Video tag in jsFiddle
d.pr/i/RqLW
Media Player Classic
d.pr/i/BZ69
回答1:
It's actually a video size issue. A little tricky but... try this: http://webz.ro/blurry-html5-video/
回答2:
I do not see any difference, but try removing the width/height attributes.
回答3:
Thanks for the suggestions - I tried everything and then some with no luck. However, since this has helped me discover that it's some kind of codec/software problem related uniquely to my setup, and not a "programming" problem, that makes it a whole new issue, so I'm going to mark this one as answered.
Update See new accepted answer.
来源：https://stackoverflow.com/questions/13016405/html5-video-is-blurry-and-low-contrast-only-in-my-installation-of-chrome