[Bug 792040] omxvideodec: add hack to pass color format from caps to OMX decoder

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=792040

Guillaume Desmottes <gdesmott at gnome.org> changed:

           What    |Removed                     |Added
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--- Comment #8 from Guillaume Desmottes <gdesmott at gnome.org> ---
Created attachment 367615
  --> https://bugzilla.gnome.org/attachment.cgi?id=367615&action=edit
omxvideodec: add hack to pass color format from caps to OMX decoder

This hack tries to pass as much information as possible from caps to the
decoder before it receives any buffer. These information can be used by
the OMX decoder to, for example, pre-allocate its internal buffers
before starting to decode and so reduce its initial latency.

This mechanism is currently supported by the zynqultrascaleplus decoder.

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