GF_EVENT_HTML_MSE_UPDATE_START  297 src/media_tools/html5_mse.c 		gf_mse_fire_event(sb->evt_target, GF_EVENT_HTML_MSE_UPDATE_START);
GF_EVENT_HTML_MSE_UPDATE_START  160 src/scenegraph/svg_attributes.c 	{ GF_EVENT_HTML_MSE_UPDATE_START, "updatestart", GF_DOM_EVENT_MEDIASOURCE },