void ParseAdaptationField::input_bitstream(Bitstream &bitstream)
{
adaptation_field_length = bitstream.read_bits(8);
log4c_category_log(mycat, LOG4C_PRIORITY_INFO, "adaptation_field_length %d", adaptation_field_length);
if(adaptation_field_length > 0)
{
discontinuity_indicator = (bool)bitstream.read_bits(1);
random_access_indicator = (bool)bitstream.read_bits(1);
elementary_stream_priority_indicator = (bool)bitstream.read_bits(1);
PCR_flag = (bool)bitstream.read_bits(1);
OPCR_flag = (bool)bitstream.read_bits(1);
splicing_point_flag = (bool)bitstream.read_bits(1);
transport_private_data_flag = (bool)bitstream.read_bits(1);
adaptation_field_extension_flag = (bool)bitstream.read_bits(1);
//log4c_category_log(mycat, LOG4C_PRIORITY_TRACE, "adaptation_field_extension_flag %d", adaptation_field_extension_flag);
if(PCR_flag)
{
log4c_category_log(mycat, LOG4C_PRIORITY_TRACE, "pcr flag related parsing");
program_clock_reference_base = bitstream.read_bits(32) << 1;
program_clock_reference_base |= (bitstream.read_bits(1));
bitstream.skip_bits(6);
program_clock_refrence_extension = bitstream.read_bits(9);
}
if(OPCR_flag)
{
log4c_category_log(mycat, LOG4C_PRIORITY_TRACE, "opcr flag related parsing");
original_program_clock_reference_base = bitstream.read_bits(32) << 1;
original_program_clock_reference_base |= (bitstream.read_bits(1));
bitstream.skip_bits(6);
original_program_clock_refrence_extension = bitstream.read_bits(9);
}
if(splicing_point_flag)
{
log4c_category_log(mycat, LOG4C_PRIORITY_TRACE, "splice flag related parsing");
splice_countdown = bitstream.read_bits(8);
}
if(transport_private_data_flag)
{
log4c_category_log(mycat, LOG4C_PRIORITY_TRACE, "transport private flag related parsing");
transport_private_data_length = bitstream.read_bits(8);
for(int i = 0; i < transport_private_data_length; i++)
{
private_data_byte.push_back((char)bitstream.read_bits(8));
}
}
if(adaptation_field_extension_flag)
{
log4c_category_log(mycat, LOG4C_PRIORITY_TRACE, "extension flag related parsing");
adaptation_field_extension_length = bitstream.read_bits(8);
ltw_flag = bitstream.read_bits(1);
piecewise_rate_flag = bitstream.read_bits(1);
seamless_splice_flag = bitstream.read_bits(1);
bitstream.skip_bits(5);
if(ltw_flag)
{
ltw_valid_flag = bitstream.read_bits(1);
ltw_offset = bitstream.read_bits(15);
}
if(piecewise_rate_flag)
{
bitstream.skip_bits(2);
piecewise_rate = bitstream.read_bits(22);
}
if(seamless_splice_flag)
{
splice_type = bitstream.read_bits(4);
DTS_next_AU = bitstream.read_bits(3) << 30;
bitstream.skip_bits(1);
DTS_next_AU |= (bitstream.read_bits(15) << 15);
bitstream.skip_bits(1);
DTS_next_AU |= bitstream.read_bits(15);
bitstream.skip_bits(1);
}
}
//int bits_remaining = adaptation_field_length - start_offset;
//log4c_category_log(mycat, LOG4C_PRIORITY_INFO, "skip_bits %d", bits_remaining);
//bitstream.skip_bits(bits_remaining);
}
}
