Created attachment 6298
Screenshot when crash
Well this looks like a problem in Gstreamer. Which version of it are you using?
Also, and more importantly, can you try with the latest stable version of Parole 0.8? With that version you can also select the alternative (and probably preferable) Clutter backend for playback in Parole's settings (Tools > Preferences > Video Output).
*** Bug 14194 has been marked as a duplicate of this bug. ***
Sean Davis referenced this bugreport in commit aa337430ed1fb0396f17141fefb953973e0ac105
Use autoimagesink to use the safest available sink. This eliminates the dreaded 'Could not initialise Xv output' error (Bug #11950)
Resolved in the above commit. Will be included in the next release.