[Bug 759803] New: shmsink: gst_allocator_alloc fail during playback

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=759803

            Bug ID: 759803
           Summary: shmsink: gst_allocator_alloc fail during playback
    Classification: Platform
           Product: GStreamer
           Version: unspecified
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-plugins-bad
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: eunhae1.choi at samsung.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

When we test ... - avdec_h264 - shmsink pipeline, avdec try to alloc too many
buffers(upto 32 buffers) with buffer pool even we set shm-size on shmsink.

If we try to play FHD movie on our target, the operation is stopped after a
while by lack of memory. 

We thisnk the max size of buffer pool needs to be set to avoid this issue.
You can check the issue with below lauch cmd.

# gst-launch-1.0 filesrc location=./s.mp4 ! qtdemux ! h264parse ! queue !
avdec_h264 ! shmsink socket-path='/tmp/mused_gst.5' wait-for-connection=false
sync=true perms=0777

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