[Bug 733616] New: v4l2object: get current bufferpool min and max in propose_allocation()

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=733616
  GStreamer | gst-plugins-good | git

           Summary: v4l2object: get current bufferpool min and max in
                    propose_allocation()
    Classification: Platform
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-good
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: aurelien.zanelli at parrot.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


Currently, gst_v4l2_object_propose_allocation() always propose a pool with
default min-buffers and max-buffers. But configured v4l2 bufferpool could have
different values, for instance when v4l2 device can't allocate, max-buffers is
reduced to min-buffers.

I also attached patch with some fix for debug messages and minor refactoring.

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