static GF_Err ODS_ODUpdate(ODPriv *priv, GF_ODUpdate *odU) { GF_ObjectDescriptor *od; u32 count; /*extract all our ODs and compare with what we already have...*/ count = gf_list_count(odU->objectDescriptors); if (count > 255) return GF_ODF_INVALID_DESCRIPTOR; while (count) { od = (GF_ObjectDescriptor *)gf_list_get(odU->objectDescriptors, 0); gf_list_rem(odU->objectDescriptors, 0); count--; ODS_SetupOD(priv->scene, od); } return GF_OK; }
static GF_Err CTXLoad_ProcessData(GF_SceneDecoder *plug, const char *inBuffer, u32 inBufferLength, u16 ES_ID, u32 stream_time, u32 mmlevel) { GF_Err e = GF_OK; u32 i, j, k, nb_updates, last_rap=0; GF_AUContext *au; Bool can_delete_com; GF_StreamContext *sc; CTXLoadPriv *priv = (CTXLoadPriv *)plug->privateStack; /*something failed*/ if (priv->load_flags==3) return GF_EOS; /*this signals main scene deconnection, destroy the context if needed*/ assert(ES_ID); if (!priv->ctx) { e = CTXLoad_Setup((GF_BaseDecoder *)plug); if (e) return e; } if (stream_time==(u32)-1) { /*seek on root stream: destroy the context manager and reload it. We cannot seek on the main stream because commands may have changed node attributes/children and we d'ont track the initial value*/ if (priv->load_flags && (priv->base_stream_id == ES_ID)) { if (priv->src) gf_fclose(priv->src); priv->src = NULL; gf_sm_load_done(&priv->load); priv->file_pos = 0; /*queue scene for detach*/ gf_term_lock_media_queue(priv->scene->root_od->term, GF_TRUE); priv->scene->root_od->action_type = GF_ODM_ACTION_SCENE_RECONNECT; gf_list_add(priv->scene->root_od->term->media_queue, priv->scene->root_od); gf_term_lock_media_queue(priv->scene->root_od->term, GF_FALSE); return CTXLoad_Setup((GF_BaseDecoder *)plug); } i=0; while ((sc = (GF_StreamContext *)gf_list_enum(priv->ctx->streams, &i))) { /*not our stream*/ if (!sc->in_root_od && (sc->ESID != ES_ID)) continue; /*not the base stream*/ if (sc->in_root_od && (priv->base_stream_id != ES_ID)) continue; /*handle SWF media extraction*/ if ((sc->streamType == GF_STREAM_OD) && (priv->load_flags==1)) continue; sc->last_au_time = 0; } return GF_OK; } if (priv->load_flags != 2) { if (priv->progressive_support) { u32 entry_time; char file_buf[4096+1]; if (!priv->src) { priv->src = gf_fopen(priv->file_name, "rb"); if (!priv->src) return GF_URL_ERROR; priv->file_pos = 0; } priv->load.type = GF_SM_LOAD_XMTA; e = GF_OK; entry_time = gf_sys_clock(); gf_fseek(priv->src, priv->file_pos, SEEK_SET); while (1) { u32 diff; s32 nb_read = (s32) fread(file_buf, 1, 4096, priv->src); if (nb_read<0) { return GF_IO_ERR; } file_buf[nb_read] = 0; if (!nb_read) { if (priv->file_pos==priv->file_size) { gf_fclose(priv->src); priv->src = NULL; priv->load_flags = 2; gf_sm_load_done(&priv->load); break; } break; } e = gf_sm_load_string(&priv->load, file_buf, GF_FALSE); priv->file_pos += nb_read; if (e) break; diff = gf_sys_clock() - entry_time; if (diff > priv->sax_max_duration) break; } if (!priv->scene->graph_attached) { gf_sg_set_scene_size_info(priv->scene->graph, priv->ctx->scene_width, priv->ctx->scene_height, priv->ctx->is_pixel_metrics); gf_scene_attach_to_compositor(priv->scene); CTXLoad_CheckStreams(priv); } } /*load first frame only*/ else if (!priv->load_flags) { /*we need the whole file*/ if (!CTXLoad_CheckDownload(priv)) return GF_OK; priv->load_flags = 1; e = gf_sm_load_init(&priv->load); if (!e) { CTXLoad_CheckStreams(priv); gf_sg_set_scene_size_info(priv->scene->graph, priv->ctx->scene_width, priv->ctx->scene_height, priv->ctx->is_pixel_metrics); /*VRML, override base clock*/ if ((priv->load.type==GF_SM_LOAD_VRML) || (priv->load.type==GF_SM_LOAD_X3DV) || (priv->load.type==GF_SM_LOAD_X3D)) { /*override clock callback*/ gf_sg_set_scene_time_callback(priv->scene->graph, CTXLoad_GetVRMLTime); } } } /*load the rest*/ else { priv->load_flags = 2; e = gf_sm_load_run(&priv->load); gf_sm_load_done(&priv->load); /*in case this was not set in the first pass (XMT)*/ gf_sg_set_scene_size_info(priv->scene->graph, priv->ctx->scene_width, priv->ctx->scene_height, priv->ctx->is_pixel_metrics); } if (e<0) { gf_sm_load_done(&priv->load); gf_sm_del(priv->ctx); priv->ctx = NULL; priv->load_flags = 3; return e; } /*and figure out duration of root scene, and take care of XMT timing*/ if (priv->load_flags==2) { CTXLoad_CheckStreams(priv); if (!gf_list_count(priv->ctx->streams)) { gf_scene_attach_to_compositor(priv->scene); } } } nb_updates = 0; i=0; while ((sc = (GF_StreamContext *)gf_list_enum(priv->ctx->streams, &i))) { /*not our stream*/ if (!sc->in_root_od && (sc->ESID != ES_ID)) continue; /*not the base stream*/ if (sc->in_root_od && (priv->base_stream_id != ES_ID)) continue; /*handle SWF media extraction*/ if ((sc->streamType == GF_STREAM_OD) && (priv->load_flags==1)) continue; /*check for seek*/ if (sc->last_au_time > 1 + stream_time) { sc->last_au_time = 0; } can_delete_com = GF_FALSE; if (sc->in_root_od && (priv->load_flags==2)) can_delete_com = GF_TRUE; /*we're in the right stream, apply update*/ j=0; /*seek*/ if (!sc->last_au_time) { while ((au = (GF_AUContext *)gf_list_enum(sc->AUs, &j))) { u32 au_time = (u32) (au->timing*1000/sc->timeScale); if (au_time > stream_time) break; if (au->flags & GF_SM_AU_RAP) last_rap = j-1; } j = last_rap; } while ((au = (GF_AUContext *)gf_list_enum(sc->AUs, &j))) { u32 au_time = (u32) (au->timing*1000/sc->timeScale); if (au_time + 1 <= sc->last_au_time) { /*remove first replace command*/ if (can_delete_com && (sc->streamType==GF_STREAM_SCENE)) { while (gf_list_count(au->commands)) { GF_Command *com = (GF_Command *)gf_list_get(au->commands, 0); gf_list_rem(au->commands, 0); gf_sg_command_del(com); } j--; gf_list_rem(sc->AUs, j); gf_list_del(au->commands); gf_free(au); } continue; } if (au_time > stream_time) { nb_updates++; break; } if (sc->streamType == GF_STREAM_SCENE) { GF_Command *com; /*apply the commands*/ k=0; while ((com = (GF_Command *)gf_list_enum(au->commands, &k))) { e = gf_sg_command_apply(priv->scene->graph, com, 0); if (e) break; /*remove commands on base layer*/ if (can_delete_com) { k--; gf_list_rem(au->commands, k); gf_sg_command_del(com); } } } else if (sc->streamType == GF_STREAM_OD) { /*apply the commands*/ while (gf_list_count(au->commands)) { Bool keep_com = GF_FALSE; GF_ODCom *com = (GF_ODCom *)gf_list_get(au->commands, 0); gf_list_rem(au->commands, 0); switch (com->tag) { case GF_ODF_OD_UPDATE_TAG: { GF_ODUpdate *odU = (GF_ODUpdate *)com; while (gf_list_count(odU->objectDescriptors)) { GF_ESD *esd; char *remote; GF_MuxInfo *mux = NULL; GF_ObjectDescriptor *od = (GF_ObjectDescriptor *)gf_list_get(odU->objectDescriptors, 0); gf_list_rem(odU->objectDescriptors, 0); /*we can only work with single-stream ods*/ esd = (GF_ESD*)gf_list_get(od->ESDescriptors, 0); if (!esd) { if (od->URLString) { ODS_SetupOD(priv->scene, od); } else { gf_odf_desc_del((GF_Descriptor *) od); } continue; } /*fix OCR dependencies*/ if (CTXLoad_StreamInRootOD(priv->ctx->root_od, esd->OCRESID)) esd->OCRESID = priv->base_stream_id; /*forbidden if ESD*/ if (od->URLString) { gf_odf_desc_del((GF_Descriptor *) od); continue; } /*look for MUX info*/ k=0; while ((mux = (GF_MuxInfo*)gf_list_enum(esd->extensionDescriptors, &k))) { if (mux->tag == GF_ODF_MUXINFO_TAG) break; mux = NULL; } /*we need a mux if not animation stream*/ if (!mux || !mux->file_name) { /*only animation streams are handled*/ if (!esd->decoderConfig) { gf_odf_desc_del((GF_Descriptor *) od); } else if (esd->decoderConfig->streamType==GF_STREAM_SCENE) { /*set ST to private scene to get sure the stream will be redirected to us*/ esd->decoderConfig->streamType = GF_STREAM_PRIVATE_SCENE; esd->dependsOnESID = priv->base_stream_id; ODS_SetupOD(priv->scene, od); } else if (esd->decoderConfig->streamType==GF_STREAM_INTERACT) { GF_UIConfig *cfg = (GF_UIConfig *) esd->decoderConfig->decoderSpecificInfo; gf_odf_encode_ui_config(cfg, &esd->decoderConfig->decoderSpecificInfo); gf_odf_desc_del((GF_Descriptor *) cfg); ODS_SetupOD(priv->scene, od); } else { gf_odf_desc_del((GF_Descriptor *) od); } continue; } //solve url before import if (mux->src_url) { char *res_url = gf_url_concatenate(mux->src_url, mux->file_name); if (res_url) { gf_free(mux->file_name); mux->file_name = res_url; } gf_free(mux->src_url); mux->src_url = NULL; } /*text import*/ if (mux->textNode) { #ifdef GPAC_DISABLE_MEDIA_IMPORT gf_odf_desc_del((GF_Descriptor *) od); continue; #else e = gf_sm_import_bifs_subtitle(priv->ctx, esd, mux); if (e) { e = GF_OK; gf_odf_desc_del((GF_Descriptor *) od); continue; } /*set ST to private scene and dependency to base to get sure the stream will be redirected to us*/ esd->decoderConfig->streamType = GF_STREAM_PRIVATE_SCENE; esd->dependsOnESID = priv->base_stream_id; ODS_SetupOD(priv->scene, od); continue; #endif } /*soundstreams are a bit of a pain, they may be declared before any data gets written*/ if (mux->delete_file) { FILE *t = gf_fopen(mux->file_name, "rb"); if (!t) { keep_com = GF_TRUE; gf_list_insert(odU->objectDescriptors, od, 0); break; } gf_fclose(t); } /*remap to remote URL - warning, the URL has already been resolved according to the parent path*/ remote = (char*)gf_malloc(sizeof(char) * (strlen("gpac://")+strlen(mux->file_name)+1) ); strcpy(remote, "gpac://"); strcat(remote, mux->file_name); k = od->objectDescriptorID; /*if files were created we'll have to clean up (swf import)*/ if (mux->delete_file) gf_list_add(priv->files_to_delete, gf_strdup(remote)); gf_odf_desc_del((GF_Descriptor *) od); od = (GF_ObjectDescriptor *) gf_odf_desc_new(GF_ODF_OD_TAG); od->URLString = remote; od->objectDescriptorID = k; ODS_SetupOD(priv->scene, od); } if (keep_com) break; } break; case GF_ODF_OD_REMOVE_TAG: { GF_ODRemove *odR = (GF_ODRemove*)com; for (k=0; k<odR->NbODs; k++) { GF_ObjectManager *odm = gf_scene_find_odm(priv->scene, odR->OD_ID[k]); if (odm) gf_odm_disconnect(odm, 1); } } break; default: break; } if (keep_com) { gf_list_insert(au->commands, com, 0); break; } else { gf_odf_com_del(&com); } if (e) break; } } sc->last_au_time = au_time + 1; /*attach graph to renderer*/ if (!priv->scene->graph_attached) gf_scene_attach_to_compositor(priv->scene); if (e) return e; /*for root streams remove completed AUs (no longer needed)*/ if (sc->in_root_od && !gf_list_count(au->commands) ) { j--; gf_list_rem(sc->AUs, j); gf_list_del(au->commands); gf_free(au); } } } if (e) return e; if ((priv->load_flags==2) && !nb_updates) return GF_EOS; return GF_OK; }