void gf_inline_on_modified(GF_Node *node)
{
u32 ODID;
GF_MediaObject *mo;
M_Inline *pInline = (M_Inline *) node;
GF_Scene *scene = (GF_Scene *)gf_node_get_private(node);
ODID = gf_mo_get_od_id(&pInline->url);
if (scene) {
mo = (scene->root_od) ? scene->root_od->mo : NULL;
/*disconnect current inline if we're the last one using it (same as regular OD session leave/join)*/
if (mo) {
Bool changed = GF_TRUE;
if (ODID != GF_MEDIA_EXTERNAL_ID) {
if (ODID && (ODID==scene->root_od->OD->objectDescriptorID)) changed = GF_FALSE;
} else {
if (gf_mo_is_same_url(mo, &pInline->url, NULL, 0) ) changed = GF_FALSE;
}
if (mo->num_open) {
if (!changed) return;
gf_scene_notify_event(scene, GF_EVENT_UNLOAD, node, NULL, GF_OK, GF_TRUE);
gf_node_dirty_parents(node);
gf_mo_event_target_remove_by_node(mo, node);
/*reset the scene pointer as it may get destroyed*/
switch (gf_node_get_tag(node)) {
case TAG_MPEG4_Inline:
#ifndef GPAC_DISABLE_X3D
case TAG_X3D_Inline:
#endif
gf_node_set_private(node, NULL);
break;
}
mo->num_open --;
if (!mo->num_open) {
if (ODID == GF_MEDIA_EXTERNAL_ID) {
GF_Scene *parent = scene->root_od->parentscene;
/*!!! THIS WILL DESTROY THE INLINE SCENE OBJECT !!!*/
gf_odm_disconnect(scene->root_od, GF_TRUE);
/*and force removal of the media object*/
if (parent) {
if (gf_list_del_item(parent->scene_objects, mo)>=0) {
gf_sg_vrml_mf_reset(&mo->URLs, GF_SG_VRML_MFURL);
gf_mo_del(mo);
}
}
} else {
gf_term_lock_media_queue(scene->root_od->term, GF_TRUE);
/*external media are completely unloaded, except addons which are only declared once */
if (!scene->root_od->addon && (scene->root_od->OD->objectDescriptorID==GF_MEDIA_EXTERNAL_ID)) {
scene->root_od->action_type = GF_ODM_ACTION_DELETE;
} else {
scene->root_od->action_type = GF_ODM_ACTION_STOP;
}
if (gf_list_find(scene->root_od->term->media_queue, scene->root_od)<0)
gf_list_add(scene->root_od->term->media_queue, scene->root_od);
gf_term_lock_media_queue(scene->root_od->term, GF_FALSE);
}
}
}
}
}
/*force a redraw and load scene at next pass - we cannot load the scene now because
- we can be in a JS call (eg JS mutex blocked)
- locating scene objects matching the new url needs exclusive access to the MediaObject list, achieved with the term net mutex
- another service may already be setting up objects (eg exclusive access to the net mutex grabbed), which can trigger event forwarding
- some event forwarders may request JS context (eg access to JS mutex)
In such a case we would end up in a deadlock - this needs urgent fixing ...
*/
if (ODID) {
/*if no parent we must process the url change as we may not be traversed later on (not in the scene tree)*/
if (gf_node_get_parent(node, 0)==NULL) {
gf_inline_set_scene(pInline);
} else {
gf_node_dirty_parents(node);
}
}
}
void gf_mo_unregister(GF_Node *node, GF_MediaObject *mo)
{
if (mo && node) {
gf_mo_event_target_remove_by_node(mo, node);
}
}
static void gf_inline_traverse(GF_Node *n, void *rs, Bool is_destroy)
{
MFURL *current_url;
GF_Scene *scene = (GF_Scene *)gf_node_get_private(n);
if (is_destroy) {
GF_MediaObject *mo;
if (!scene) return;
mo = scene->root_od ? scene->root_od->mo : NULL;
gf_scene_notify_event(scene, GF_EVENT_UNLOAD, n, NULL, GF_OK, GF_TRUE);
if (!mo) return;
gf_mo_event_target_remove_by_node(mo, n);
/*disconnect current inline if we're the last one using it (same as regular OD session leave/join)*/
if (mo->num_open) {
mo->num_open --;
if (!mo->num_open) {
gf_term_lock_media_queue(scene->root_od->term, GF_TRUE);
/*this is unspecified in the spec: whenever an inline not using the
OD framework is destroyed, destroy the associated resource*/
if (mo->OD_ID == GF_MEDIA_EXTERNAL_ID) {
/*get parent scene and remove MediaObject in case the ressource
gets re-requested later on*/
GF_Scene *parent_scene = (GF_Scene *)gf_sg_get_private(gf_node_get_graph((GF_Node *) n) );
if (gf_list_del_item(parent_scene->scene_objects, mo)>=0) {
gf_sg_vrml_mf_reset(&mo->URLs, GF_SG_VRML_MFURL);
if (mo->odm) {
gf_odm_reset_media_control(mo->odm, 1);
mo->odm->mo = NULL;
}
gf_mo_del(mo);
}
scene->root_od->action_type = GF_ODM_ACTION_DELETE;
gf_list_add(scene->root_od->term->media_queue, scene->root_od);
} else {
scene->root_od->action_type = GF_ODM_ACTION_SCENE_DISCONNECT;
gf_list_add(scene->root_od->term->media_queue, scene->root_od);
}
gf_term_lock_media_queue(scene->root_od->term, GF_FALSE);
}
}
return;
}
//if no private scene is associated get the node parent graph, retrieve the IS and find the OD
if (!scene) {
M_Inline *inl = (M_Inline *)n;
gf_inline_set_scene(inl);
scene = (GF_Scene *)gf_node_get_private(n);
if (!scene) {
/*just like protos, we must invalidate parent graph until attached*/
if (inl->url.count) {
if (!inl->url.vals[0].OD_ID && (!inl->url.vals[0].url || !strlen(inl->url.vals[0].url) ) ) {
gf_sg_vrml_mf_reset(&inl->url, GF_SG_VRML_MFURL);
} else {
gf_node_dirty_set(n, 0, GF_TRUE);
}
}
return;
}
}
/*if not attached return (attaching the graph cannot be done in render since render is not called while unattached :) */
if (!scene->graph_attached) {
/*just like protos, we must invalidate parent graph until attached*/
gf_node_dirty_set(n, 0, GF_TRUE);
return;
}
/*clear dirty flags for any sub-inlines, bitmaps or protos*/
gf_node_dirty_clear(n, 0);
current_url = scene->current_url;
scene->current_url = & ((M_Inline*)n)->url;
gf_sc_traverse_subscene(scene->root_od->term->compositor, n, scene->graph, rs);
scene->current_url = current_url;
//do we have to restart for next frame ? If so let's do it
gf_inline_check_restart(scene);
/*if we need to restart, shutdown graph and do it*/
if (scene->needs_restart) {
/*special case: scene change*/
if (scene->needs_restart==2) {
scene->needs_restart = 0;
gf_inline_on_modified(n);
return;
}
scene->needs_restart = 0;
gf_term_lock_media_queue(scene->root_od->term, GF_TRUE);
scene->root_od->action_type = GF_ODM_ACTION_SCENE_INLINE_RESTART;
gf_list_add(scene->root_od->term->media_queue, scene->root_od);
gf_term_lock_media_queue(scene->root_od->term, GF_FALSE);
gf_node_dirty_set(n, 0, GF_TRUE);
return;
}
}
