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_EXPORT
GF_Err gf_bifs_decoder_configure_stream(GF_BifsDecoder * codec, u16 ESID, char *DecoderSpecificInfo, u32 DecoderSpecificInfoLength, u32 objectTypeIndication)
{
GF_BitStream *bs;
BIFSStreamInfo *pInfo;
GF_Err e;
if (!DecoderSpecificInfo) {
/* Hack for T-DMB non compliant streams */
GF_SAFEALLOC(pInfo, BIFSStreamInfo);
pInfo->ESID = ESID;
pInfo->config.PixelMetrics = 1;
pInfo->config.version = (objectTypeIndication==2) ? 1 : 2;
assert( codec );
assert( codec->streamInfo );
return gf_list_add(codec->streamInfo, pInfo);
}
// gf_mx_p(codec->mx);
assert( codec );
if (gf_bifs_dec_get_stream(codec, ESID) != NULL) {
// gf_mx_v(codec->mx);
return GF_BAD_PARAM;
}
bs = gf_bs_new(DecoderSpecificInfo, DecoderSpecificInfoLength, GF_BITSTREAM_READ);
GF_SAFEALLOC(pInfo, BIFSStreamInfo);
pInfo->ESID = ESID;
pInfo->config.version = objectTypeIndication;
/*parse config with indicated oti*/
e = ParseConfig(bs, pInfo, (u32) objectTypeIndication);
if (e) {
pInfo->ESID = ESID;
/*some content indicates a wrong OTI, so try to parse with v1 or v2*/
gf_bs_seek(bs, 0);
/*try with reverse config*/
e = ParseConfig(bs, pInfo, (objectTypeIndication==2) ? 1 : 2);
pInfo->config.version = (objectTypeIndication==2) ? 1 : 2;
}
if (e && (e != GF_ODF_INVALID_DESCRIPTOR)) {
gf_free(pInfo);
gf_bs_del(bs);
return GF_BIFS_UNKNOWN_VERSION;
}
gf_bs_del(bs);
assert( codec->streamInfo );
//first stream, configure size
if (!codec->ignore_size && !gf_list_count(codec->streamInfo)) {
gf_sg_set_scene_size_info(codec->scenegraph, pInfo->config.Width, pInfo->config.Height, pInfo->config.PixelMetrics);
}
gf_list_add(codec->streamInfo, pInfo);
// gf_mx_v(codec->mx);
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;
}