[Bug 761117] New: gstvideodecoder: Handle multi-resolution videos

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=761117

            Bug ID: 761117
           Summary: gstvideodecoder: Handle multi-resolution videos
    Classification: Platform
           Product: GStreamer
           Version: git master
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: Normal
         Component: gst-plugins-base
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: bsreerenj at gmail.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

Is there any way to set the src caps from decoder-subcalss with out negotiating
the pool?

Unlike other software decoders gstreamer-vaapi is not doing the cropping in
decoder, instead we only attach the crop rectangle to the buffers. So The pool
size should be the actual un-corpped surface size. Which means we need a way to
set cropped dimension in src caps and at the same time we have to keep the pool
having un-cropped dimension.

I wonder whether it is possible with the current gstvideodecoder
implementation,,??

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