GF_EXPORT
GF_Err gf_bifs_decode_au(GF_BifsDecoder *codec, u16 ESID, const char *data, u32 data_length, Double ts_offset)
{
GF_BitStream *bs;
GF_Err e;
if (!codec || !data || codec->dec_memory_mode) return GF_BAD_PARAM;
// gf_mx_p(codec->mx);
codec->info = gf_bifs_dec_get_stream(codec, ESID);
if (!codec->info) {
// gf_mx_v(codec->mx);
return GF_BAD_PARAM;
}
/*setup current scene graph*/
codec->current_graph = codec->scenegraph;
codec->cts_offset = ts_offset;
bs = gf_bs_new(data, data_length, GF_BITSTREAM_READ);
gf_bs_set_eos_callback(bs, BD_EndOfStream, codec);
if (codec->info->config.elementaryMasks) {
e = GF_NOT_SUPPORTED;
} else {
e = gf_bifs_dec_command(codec, bs);
}
gf_bs_del(bs);
/*reset current config*/
codec->info = NULL;
codec->current_graph = NULL;
// gf_mx_v(codec->mx);
return e;
}
GF_Err gf_bifs_flush_command_list(GF_BifsDecoder *codec)
{
GF_BitStream *bs;
GF_Err e;
CommandBufferItem *cbi;
u32 NbPass = gf_list_count(codec->command_buffers);
GF_List *nextPass = gf_list_new();
while (NbPass) {
while (gf_list_count(codec->command_buffers)) {
cbi = (CommandBufferItem *)gf_list_get(codec->command_buffers, 0);
gf_list_rem(codec->command_buffers, 0);
codec->current_graph = gf_node_get_graph(cbi->node);
e = GF_OK;
if (cbi->cb->bufferSize) {
bs = gf_bs_new((char*)cbi->cb->buffer, cbi->cb->bufferSize, GF_BITSTREAM_READ);
gf_bs_set_eos_callback(bs, BM_EndOfStream, codec);
e = BM_ParseCommand(codec, bs, cbi->cb->commandList);
gf_bs_del(bs);
}
if (!e) {
gf_free(cbi);
continue;
}
/*this may be an error or a dependency pb - reset coimmand list and move to next pass*/
while (gf_list_count(cbi->cb->commandList)) {
u32 i;
GF_CommandField *cf;
GF_Command *com = (GF_Command *)gf_list_get(cbi->cb->commandList, 0);
gf_list_rem(cbi->cb->commandList, 0);
cf = (GF_CommandField *) gf_list_get(com->command_fields, 0);
if (cf && cf->fieldType==GF_SG_VRML_SFCOMMANDBUFFER) {
for (i=0; i<gf_list_count(codec->command_buffers); i++) {
CommandBufferItem *cbi2 = (CommandBufferItem *)gf_list_get(codec->command_buffers, i);
if (cbi2->cb == cf->field_ptr) {
gf_free(cbi2);
gf_list_rem(codec->command_buffers, i);
i--;
}
}
}
gf_sg_command_del(com);
}
gf_list_add(nextPass, cbi);
}
if (!gf_list_count(nextPass)) break;
/*prepare next pass*/
while (gf_list_count(nextPass)) {
cbi = (CommandBufferItem *)gf_list_get(nextPass, 0);
gf_list_rem(nextPass, 0);
gf_list_add(codec->command_buffers, cbi);
}
NbPass --;
if (NbPass > gf_list_count(codec->command_buffers)) NbPass = gf_list_count(codec->command_buffers);
codec->LastError = GF_OK;
}
gf_list_del(nextPass);
return GF_OK;
}
GF_EXPORT
GF_Err gf_bifs_decode_command_list(GF_BifsDecoder *codec, u16 ESID, char *data, u32 data_length, GF_List *com_list)
{
GF_BitStream *bs;
GF_Err e;
if (!codec || !data || !codec->dec_memory_mode || !com_list) return GF_BAD_PARAM;
codec->info = gf_bifs_dec_get_stream(codec, ESID);
if (!codec->info) return GF_BAD_PARAM;
if (codec->info->config.elementaryMasks ) return GF_NOT_SUPPORTED;
/*root parse (not conditionals)*/
assert(codec->scenegraph);
/*setup current scene graph*/
codec->current_graph = codec->scenegraph;
codec->ActiveQP = (M_QuantizationParameter*) codec->scenegraph->global_qp;
bs = gf_bs_new(data, data_length, GF_BITSTREAM_READ);
gf_bs_set_eos_callback(bs, BM_EndOfStream, codec);
e = BM_ParseCommand(codec, bs, com_list);
gf_bs_del(bs);
/*decode conditionals / input sensors*/
if (!e) {
gf_bifs_flush_command_list(codec);
}
/*if err or not reset conditionals*/
while (gf_list_count(codec->command_buffers)) {
CommandBufferItem *cbi = (CommandBufferItem *)gf_list_get(codec->command_buffers, 0);
gf_free(cbi);
gf_list_rem(codec->command_buffers, 0);
}
/*reset current config*/
codec->info = NULL;
codec->current_graph = NULL;
// gf_mx_v(codec->mx);
return e;
}