Ejemplos de get_sync_reference en C++ (Cpp)

Ejemplo n.º 1

Archivo: media_object.c Proyecto: golgol7777/gpac

static GF_MediaObject *get_sync_reference(GF_Scene *scene, XMLRI *iri, u32 o_type, GF_Node *orig_ref, Bool *post_pone)
{
	MFURL mfurl;
	SFURL sfurl;
	GF_MediaObject *res;
	GF_Node *ref = NULL;

	u32 stream_id = 0;
	if (iri->type==XMLRI_STREAMID) {
		stream_id = iri->lsr_stream_id;
	} else if (!iri->string) {
		return NULL;
	} else {
		if (iri->target) ref = iri->target;
		else if (iri->string[0]=='#') ref = gf_sg_find_node_by_name(scene->graph, iri->string+1);
		else ref = gf_sg_find_node_by_name(scene->graph, iri->string);

		if (ref) {
#ifndef GPAC_DISABLE_SVG
			GF_FieldInfo info;
#endif
			/*safety check, break cyclic references*/
			if (ref==orig_ref) return NULL;

			switch (ref->sgprivate->tag) {
#ifndef GPAC_DISABLE_SVG
			case TAG_SVG_audio:
				o_type = GF_MEDIA_OBJECT_AUDIO; 
				if (gf_node_get_attribute_by_tag(ref, TAG_XLINK_ATT_href, 0, 0, &info)==GF_OK) {
					return get_sync_reference(scene, info.far_ptr, o_type, orig_ref ? orig_ref : ref, post_pone);
				}
				return NULL;
			case TAG_SVG_video:
				o_type = GF_MEDIA_OBJECT_VIDEO; 
				if (gf_node_get_attribute_by_tag(ref, TAG_XLINK_ATT_href, 0, 0, &info)==GF_OK) {
					return get_sync_reference(scene, info.far_ptr, o_type, orig_ref ? orig_ref : ref, post_pone);
				}
				return NULL;
#endif
			default:
				return NULL;
			}
		}
	}
	*post_pone = 0;
	mfurl.count = 1;
	mfurl.vals = &sfurl;
	mfurl.vals[0].OD_ID = stream_id;
	mfurl.vals[0].url = iri->string;

	res = gf_scene_get_media_object(scene, &mfurl, o_type, 0);
	if (!res) *post_pone = 1;
	return res;
}

Ejemplo n.º 2

Archivo: media_object.c Proyecto: Bevara/GPAC

GF_EXPORT
GF_MediaObject *gf_mo_register(GF_Node *node, MFURL *url, Bool lock_timelines, Bool force_new_res)
{
	u32 obj_type;
#ifndef GPAC_DISABLE_SVG
	Bool post_pone;
	GF_FieldInfo info;
#endif
	GF_Scene *scene;
	GF_MediaObject *res, *syncRef;
	GF_SceneGraph *sg = gf_node_get_graph(node);
	if (!sg) return NULL;
	scene = (GF_Scene*)gf_sg_get_private(sg);
	if (!scene) return NULL;

	syncRef = NULL;

	/*keep track of the kind of object expected if URL is not using OD scheme*/
	switch (gf_node_get_tag(node)) {
#ifndef GPAC_DISABLE_VRML
	/*MPEG-4 / VRML / X3D only*/
	case TAG_MPEG4_AudioClip:
	case TAG_MPEG4_AudioSource:
#ifndef GPAC_DISABLE_X3D
	case TAG_X3D_AudioClip:
#endif
		obj_type = GF_MEDIA_OBJECT_AUDIO;
		break;
	case TAG_MPEG4_SBVCAnimation:
	case TAG_MPEG4_AnimationStream:
		obj_type = GF_MEDIA_OBJECT_UPDATES;
		break;
	case TAG_MPEG4_BitWrapper:
		obj_type = GF_MEDIA_OBJECT_SCENE;
		break;
	case TAG_MPEG4_InputSensor:
		obj_type = GF_MEDIA_OBJECT_INTERACT;
		break;
	case TAG_MPEG4_Background2D:
	case TAG_MPEG4_Background:
	case TAG_MPEG4_ImageTexture:
	case TAG_MPEG4_CacheTexture:
	case TAG_MPEG4_MovieTexture:
#ifndef GPAC_DISABLE_X3D
	case TAG_X3D_Background:
	case TAG_X3D_ImageTexture:
	case TAG_X3D_MovieTexture:
#endif
		obj_type = GF_MEDIA_OBJECT_VIDEO;
		break;
	case TAG_MPEG4_Inline:
#ifndef GPAC_DISABLE_X3D
	case TAG_X3D_Inline:
#endif
		obj_type = GF_MEDIA_OBJECT_SCENE;
		break;
#endif /*GPAC_DISABLE_VRML*/

		/*SVG*/
#ifndef GPAC_DISABLE_SVG
	case TAG_SVG_audio:
		obj_type = GF_MEDIA_OBJECT_AUDIO;
		if (gf_node_get_attribute_by_tag(node, TAG_SVG_ATT_syncReference, GF_FALSE, GF_FALSE, &info)==GF_OK) {
			syncRef = get_sync_reference(scene, (XMLRI *)info.far_ptr, GF_MEDIA_OBJECT_UNDEF, node, &post_pone);
			/*syncRef is specified but doesn't exist yet, post-pone*/
			if (post_pone) return NULL;
		}
		break;
	case TAG_SVG_video:
		obj_type = GF_MEDIA_OBJECT_VIDEO;
		if (gf_node_get_attribute_by_tag(node, TAG_SVG_ATT_syncReference, GF_FALSE, GF_FALSE, &info)==GF_OK) {
			syncRef = get_sync_reference(scene, (XMLRI *)info.far_ptr, GF_MEDIA_OBJECT_UNDEF, node, &post_pone);
			/*syncRef is specified but doesn't exist yet, post-pone*/
			if (post_pone) return NULL;
		}
		break;
	case TAG_SVG_image:
		obj_type = GF_MEDIA_OBJECT_VIDEO;
		break;
	case TAG_SVG_foreignObject:
	case TAG_SVG_animation:
		obj_type = GF_MEDIA_OBJECT_SCENE;
		break;
	case TAG_LSR_updates:
		obj_type = GF_MEDIA_OBJECT_UPDATES;
		break;
#endif

	default:
		obj_type = GF_MEDIA_OBJECT_UNDEF;
		break;
	}

	/*move to primary resource handler*/
	while (scene->secondary_resource && scene->root_od->parentscene)
		scene = scene->root_od->parentscene;

	res = gf_scene_get_media_object_ex(scene, url, obj_type, lock_timelines, syncRef, force_new_res, node);
	return res;
}