Quick Look hangs on MKV thumbnail load
|Reported by:||Bonatapus||Owned by:|
When Quick Look Helper tries to load thumbnail previews for MKV files while Perian is installed, it hangs consuming around 30% of the CPU until it times out and places a generic icon instead of a frame from the video as the thumbnail. This process is visible when viewing an MKV in a stack on the dock; the thumbnail will be blank (represented by a dotted line square) and when Quick Look Helper finally times out it will place the generic icon there instead. Uninstalling Perian fixes this issue because Quick Look no longer acknowledges MKV's as something that it can preview. This happens regardless of the program set to default for MKV files. This is an issue because while Quick Look Helper is trying to generate the thumbnail preview for the MKV it will not generate other thumbnails until it times out, not to mention the increased CPU and RAM usage.