Original commit message from CVS: * gst/flacparse/gstbaseparse.c: (gst_base_parse_finalize), (gst_base_parse_class_init), (gst_base_parse_push_buffer), (gst_base_parse_change_state), (gst_base_parse_set_index), (gst_base_parse_get_index): Add support for GstIndex.