/**
Same as previous but without SliceIgroup table.
*/
void PPSCut (unsigned char *data, PPS *pps, SPS *sps, int NalBytesInNalunit )
{
int Position = 8;
unsigned char Pps_id = (unsigned char) read_ue(data, &Position);
unsigned char Sps_id = (unsigned char) read_ue(data, &Position);
unsigned char pic_parameter_set_id = CLIP3(0, PPS_BUF_SIZE - 1, Pps_id);
unsigned char seq_parameter_set_id = CLIP3(0, SPS_BUF_SIZE - 1, Sps_id);
PPS *pt_pps = &pps[pic_parameter_set_id];
pt_pps -> seq_parameter_set_id = seq_parameter_set_id;
//Initialization of the maximun number of pps
if(pic_parameter_set_id > pps[0] . MaxPpsId){
pps[0] . MaxPpsId = pic_parameter_set_id;
}
PpsFirstHeader(data, &Position, pt_pps);
PpsSliceGroupHeaderCut(data, &Position, pt_pps);
PpsEndOfHeader(data, &Position, pt_pps);
if( more_rbsp_data(data, &Position, &NalBytesInNalunit) ) { // Position < NalBytesInNalunit << 3
SPS *pt_sps = &sps[seq_parameter_set_id];
PpsHighProfile(data, &Position, pt_pps, pt_sps);
}
rbsp_trailing_bits(&Position);
}
void seq_parameter_set( unsigned char *data, SPS *sps){
int position = 8;
int profile_idc = getNbits(data, &position, 8);
int constraint = getNbits(data, &position, 8);
int level_idc = getNbits(data, &position, 8); //level_idc =
if (profile_idc && !(constraint & 0xf)){
char Sps_id = read_ue(data, &position);
char seq_parameter_set_id = CLIP3(0, SPS_BUF_SIZE, Sps_id);
SPS *pt_sps = &sps [seq_parameter_set_id];
//To save parameter before resetting
short b_stride = pt_sps -> b_stride;
short b8_stride = pt_sps -> b8_stride;
//Initialization of the maximun number of sps
if(seq_parameter_set_id > sps[0] . MaxSpsId){
sps[0] . MaxSpsId = seq_parameter_set_id;
}
//Intilaize the SPS to zero
memset(pt_sps, 0, sizeof(SPS));
pt_sps -> b_stride = b_stride;
pt_sps -> b8_stride = b8_stride;
pt_sps -> profile_idc = profile_idc;
pt_sps -> level_idc = level_idc;
seq_parameter_set_data(data, &position, pt_sps);
pt_sps -> slice_header_restriction_flag = -1;
rbsp_trailing_bits(&position);
}
}
