[Bug 706083] v4l2src: UVC Allocated buffers wrapped in GstBuffer get orphaned by GstBuffer API

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=706083
  GStreamer | gst-plugins-good | git

--- Comment #26 from Robert Krakora <rob.krakora at messagenetsystems.com> 2013-09-19 20:05:22 UTC ---
>> @@ +794,3 @@
>> +            meta->mem, vbuffer.bytesused, 0, vbuffer.bytesused, NULL,
>> +            NULL));
>> +  /* with vbuffer.bytesused as the size and replace the    */
>> 
>> Huh?  gst_buffer_resize() is the problem.  It can replace the wrapped memory
>> object referenced by the GstBuffer with a new one that meets the new size
>> constraint and then the previously wrapped memory object, which wraps a v4l2
>> buffer, is "lost in space".
>
>In this case, it will only shrink the buffer, so that should never happen.

With all do respect, gst_buffer_resize() does replace the memory object.  I
have followed the code path and put a ton of debug print statements in the
code.  Without this change, there is no point in going through with a patch for
this bug.

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