Comment 14 for bug 403154

On Wed, 2009-09-02 at 19:17 +0000, Jonathan Thomas wrote:
> Good job digging around in the debugger! Here is what we need to do,
> for this to get fixed. We need to prepare a simple example for Dan
> which exposes the bug. What I recommend is to use the smallest H.264
> clip you have, create the simplest OpenShot project possible which maxes
> out the CPU, and then take a copy of the "Westley.xml" file from the
> /OpenShot/ folder.

I don't think we can reproduce the issue just playing the file - it is
triggered by the user dragging the time-cursor back and forth in the
time-line before the video preview has had a chance to catch up.

Sometimes it can take 15-20 drags/changes of direction to invoke the
bug. I've never seen it invoked from a simple first play.

I can't think how we can simulate that user interaction with melt alone.

What I will do is try the same thing in kdenlive. It is based on the
same MLT/ffmpeg dependencies. If both applications can trigger this it
would make it easier to be sure the issue is in MLT.