/*inserts a node in a container (node.children)*/ GF_Err BE_NodeInsert(GF_BifsEncoder *codec, GF_Command *com, GF_BitStream *bs) { u32 NDT; GF_CommandField *inf; if (!gf_list_count(com->command_fields)) return GF_OK; inf = (GF_CommandField *)gf_list_get(com->command_fields, 0); GF_BIFS_WRITE_INT(codec, bs, gf_node_get_id(com->node) - 1, codec->info->config.NodeIDBits, "NodeID", NULL); NDT = gf_bifs_get_child_table(com->node); switch (inf->pos) { case 0: GF_BIFS_WRITE_INT(codec, bs, 2, 2, "FIRST", "idx"); break; case -1: GF_BIFS_WRITE_INT(codec, bs, 3, 2, "LAST", "idx"); break; default: GF_BIFS_WRITE_INT(codec, bs, 0, 2, "pos", "idx"); GF_BIFS_WRITE_INT(codec, bs, inf->pos, 8, "pos", NULL); break; } return gf_bifs_enc_node(codec, inf->new_node, NDT, bs); }
/*inserts a node in a container (node.children)*/ GF_Err BM_ParseNodeInsert(GF_BifsDecoder *codec, GF_BitStream *bs, GF_List *com_list) { u32 NodeID, NDT; GF_Command *com; GF_CommandField *inf; s32 type, pos; GF_Node *node, *def; NodeID = 1 + gf_bs_read_int(bs, codec->info->config.NodeIDBits); def = gf_sg_find_node(codec->current_graph, NodeID); if (!def) return GF_NON_COMPLIANT_BITSTREAM; NDT = gf_bifs_get_child_table(def); if (!NDT) return GF_NON_COMPLIANT_BITSTREAM; type = gf_bs_read_int(bs, 2); switch (type) { case 0: pos = gf_bs_read_int(bs, 8); break; case 2: pos = 0; break; case 3: /*-1 means append*/ pos = -1; break; default: return GF_NON_COMPLIANT_BITSTREAM; } node = gf_bifs_dec_node(codec, bs, NDT); if (!codec->LastError) { com = gf_sg_command_new(codec->current_graph, GF_SG_NODE_INSERT); BM_SetCommandNode(com, def); inf = gf_sg_command_field_new(com); inf->pos = pos; inf->new_node = node; inf->field_ptr = &inf->new_node; inf->fieldType = GF_SG_VRML_SFNODE; gf_list_add(com_list, com); /*register*/ gf_node_register(node, NULL); } return codec->LastError; }