If the <video> is autoplay, and also has a poster, the video doesn't seem to show reliably. If you resize the window, things show up.
<rdar://problem/7645531>
Created attachment 48788 [details] Patch
Comment on attachment 48788 [details] Patch 22 <video width="480" height="270" type="video/mp4" src="content/test.mp4" poster="content/abe.png" autoplay> + <video> doesn't have a 'type' attribute, only <source> does. You should just remove it. + Not all ports support MPEG-4, but there are alternate encodings of all of most test movies so instead of hardcoding the src directly in the markup you should include "media-file.js" and set the src in doSetup with video.src = findMediaFile("video", "content/test"); + We have hardware compositing on Windows, won't it break unless it implements platformLayer()? r=me with these changes
http://trac.webkit.org/changeset/54826 http://trac.webkit.org/changeset/54827