[Bug 754470] New: v4l2videodec: send decoder stop command instead of queueing empty buffers

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=754470

            Bug ID: 754470
           Summary: v4l2videodec: send decoder stop command instead of
                    queueing empty buffers
    Classification: Platform
           Product: GStreamer
           Version: 1.5.90
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-plugins-good
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: p.zabel at pengutronix.de
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

Created attachment 310510
  --> https://bugzilla.gnome.org/attachment.cgi?id=310510&action=edit
v4l2_calls: add gst_v4l2_encoder_cmd and gst_v4l2_decoder_cmd

When v4l2videodec receives the EOS event on its sink, it should issue the
V4L2_DEC_CMD_STOP decoder command to signal end of stream to the v4l2 mem2mem
device. If the driver can handle the stop command, it should not be necessary
to queue empty buffers at the end of the stream.

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