[gstreamer-bugs] [Bug 624697] Add 'video/x-raw-va' in DEFAULT_RAW_CAPS for va api support

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=624697
  GStreamer | gst-plugins-base | unspecified

--- Comment #3 from Zhao, Halley <halley.zhao at intel.com> 2010-07-19 08:30:59 UTC ---
in some condition, va stuff is autoplugged, because playbin2 could stop
auto-plug when it realize it has come to a sink element.
but if we set playbin2 'video-sink' property with customized sink, customized
sink doesn't work. 
    1. decodebin2 auto-plug doesn't stop when it comes to 'video/x-raw-va'
    2. then it will comes to a sink (vaimagesink for example)
    3. playbin2 will stop auto-plug in autoplug_select_cb() when it find a sink
element is reached.
    4. playbin2 will use vaimagesink in no_more_pads_cb(), while not the sink
set by 'video-sink' property.

va element only works if the hardware supports the required features.

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