We only need a Video Object Start code before we can start pushing out data.
Search for this code also instead of only looking for VOS and VOP.
Fixes#572551.
Original commit message from CVS:
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.
Original commit message from CVS:
2007-10-27 Julien MOUTTE <julien@moutte.net>
* gst/mpeg4videoparse/mpeg4videoparse.c:
(gst_mpeg4vparse_align),
(gst_mpeg4vparse_drain), (gst_mpeg4vparse_chain),
(gst_mpeg4vparse_sink_setcaps), (gst_mpeg4vparse_sink_event),
(gst_mpeg4vparse_cleanup), (gst_mpeg4vparse_change_state),
(gst_mpeg4vparse_dispose), (gst_mpeg4vparse_base_init),
(gst_mpeg4vparse_class_init), (gst_mpeg4vparse_init),
(plugin_init):
* gst/mpeg4videoparse/mpeg4videoparse.h: Improved version not
damaging headers using a simple state machine.
