Original commit message from CVS:
Patch by: Daniel Fischer <dan at f3c dot com>
* configure.ac:
* ext/dc1394/gstdc1394.c: (gst_dc1394_change_state),
(gst_dc1394_get_cam_caps), (gst_dc1394_open_cam_with_best_caps):
* ext/dc1394/gstdc1394.h:
Add support for libdc1394 2.0.0 and above and require this version
now. Fixes bug #514964.