[Bug 700600] videomixer: Fix races in caps negotiation and re enable the unit test

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=700600
  GStreamer | gst-plugins-good | 1.x

--- Comment #5 from Thibault Saunier <thibault.saunier at collabora.com> 2013-05-18 19:54:05 UTC ---
Created an attachment (id=244658)
 View: https://bugzilla.gnome.org/attachment.cgi?id=244658
 Review: https://bugzilla.gnome.org/review?bug=700600&attachment=244658

tests: Re-enable videomixer test

-- 
Configure bugmail: https://bugzilla.gnome.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the QA contact for the bug.
You are the assignee for the bug.