sys/ximage/ximagesink.c: Rework the way software video scaling works. So now we check...

sys/ximage/ximagesink.c: Rework the way software video scaling works. So now we check on each chain call if the video...

Original commit message from CVS:
2004-02-18  Julien MOUTTE  <julien@moutte.net>

* sys/ximage/ximagesink.c:
(gst_ximagesink_xwindow_update_geometry),
(gst_ximagesink_renegotiate_size), (gst_ximagesink_handle_xevents),
(gst_ximagesink_change_state), (gst_ximagesink_expose),
(gst_ximagesink_init): Rework the way software video scaling works. So
now we check on each chain call if the video frames are feeling the
window. If not we try to renegotiate caps. On failure we memorize that
and we won't try again for that PLAYING sessions.
* sys/ximage/ximagesink.h: Adding a boolean to store the caps renego
failure.
* sys/xvimage/xvimagesink.c: (gst_xvimagesink_init): initialize the
synchronous flag.