[Bug 684341] [codecparsers vc1] many vc1 stream give corruption image when gst-vaapi is used

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=684341
  GStreamer | gst-plugins-bad | git

--- Comment #3 from Zhao, Halley <halley.zhao at intel.com> 2012-09-21 01:46:53 UTC ---
you explanation sounds good.

however, from data flow, it's better to translate implicit statement to clear
value as early as possible; it improves the robustness of the pipeline.
otherwise we have to depend on other layer to translate it -- there are various
of implementation for them.

ffmpeg handles it in frame header parser. sometimes (in libva) we compares
headers sent from ffmpeg and that from gstv-aapi for debug. if we rely on
driver to make the fix, the asymmetry will lead to some confusion.

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