Nil-check the results of -[AVPlayerItemVideoOutput copyPixelBufferForItemTime:itemTimeForDisplay:].
<rdar://problem/13749632>
Created attachment 199843 [details] Patch
Comment on attachment 199843 [details] Patch Clearing flags on attachment: 199843 Committed r149225: <http://trac.webkit.org/changeset/149225>
All reviewed patches have been landed. Closing bug.