Created attachment 110760 [details] [review]
Add codec data parse capabilities

Added a patch to make mpeg4videoparse a lot nicer.. features:
  * Parses the config data (either outbound or in the stream) to set   
    width/height, apect ration, framerate in the caps if applicable.
  * Marks frames as GST_BUFFER_FLAG_DELTA_UNIT when they are not intra frames
  * Sets the timestamps of outgoing buffers to the buffer in which the 
    VOP header was found.
  * Drops incoming data untill configuration is found (by default,
    configurable using a property).

The only thing left is to set the latency on the element.. Which is a bit tricky as the framerate might be variable, suggestions on how to solve this welcome :)

Fixed the parsing of the framerate.
Added a 1 frame latency which seems to make unjitterbuffered RTP playback smooth again.

        Patch by: Sjoerd Simons <sjoerd at luon dot net>

        * gst/mpeg4videoparse/mpeg4videoparse.c:
        (gst_mpeg4vparse_set_new_caps), (gst_mpeg4vparse_align),
        (get_bits), (next_start_code), (gst_mpeg4vparse_handle_vos),
        (gst_mpeg4vparse_push), (gst_mpeg4vparse_drain),
        (gst_mpeg4vparse_chain), (gst_mpeg4vparse_sink_setcaps),
        (gst_mpeg4vparse_sink_event), (gst_mpeg4vparse_src_query),
        (gst_mpeg4vparse_set_property), (gst_mpeg4vparse_get_property),
        (gst_mpeg4vparse_class_init), (gst_mpeg4vparse_init):
        * gst/mpeg4videoparse/mpeg4videoparse.h:
        Parse the config data (either outbound or in the stream) to set
        width/height, apect ration, framerate in the caps if applicable.
        Mark frames as GST_BUFFER_FLAG_DELTA_UNIT when they are not
        intra frames
        Set the timestamps of outgoing buffers to the buffer in
        which the VOP header was found.
        Drop incoming data untill configuration is found (by default,
        configurable using a property).
        Report a 1 frame latency. Fixes #532723.