[Bug 728045] omxvideodec: support cropping information

GStreamer (bugzilla.gnome.org) bugzilla at gnome.org
Tue Jun 24 07:47:21 PDT 2014


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

--- Comment #8 from Nicolas Dufresne <nicolas.dufresne at collabora.co.uk> 2014-06-24 14:47:18 UTC ---
(In reply to comment #7)
> But yes, videoalignment solves a similar problem. But which of the two is
> supported downstream, or which of the two can be applied to OpenMAX has to be
> checked. They are not the same thing.

To clarify a bit (I know you know Sebastian, it's for others). Both requires
VideoMeta to be supported downstream. VideoCrop require downstream to support
it. VideoAlignement only require downstream support it if downstream pool is
being used (currently only supported by ximagsink and xvimagsink). In OMX, it
is likely that downstream pool won't be used, hence VideoAlignment being a good
choice. Note that using this you can then use gst_video_frame_copy() to copy to
a buffer with default alignment (if there is not way around).

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