[Bug 728045] omxvideodec: support cropping information

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=728045
  GStreamer | gst-omx | git

Nicolas Dufresne <nicolas.dufresne> changed:

           What    |Removed                     |Added
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                 CC|                            |nicolas.dufresne at collabora.
                   |                            |co.uk

--- Comment #6 from Nicolas Dufresne <nicolas.dufresne at collabora.co.uk> 2014-06-24 13:33:28 UTC ---
I don't agree, Using video crop meta may confuse certain pipeline. As OMX do
allocates it's own buffer, I think it's preferred play with the offset (see
GstVideoAlignement and gst_video_info_align).

For the reference:

dec (crop meta with x,y positive, same size) ! effect ! displaysink

It is likely that the effect will only be applied from from the portion
starting at coordinate (0,0) till (width,height), instead of (x,y) till
(width+x, height+y). CropMeta works well if the crop region is within (0,0) an
(width,height), which might not always be the case.

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