void ReadPicTiming(H264Bitstream r, uint length)
{
// Rec. ITU-T H.264 (04/2013) Section D.2.2
var CpbDpbDelaysPresentFlag = (_nalHrdParametersPresentFlag.HasValue && _nalHrdParametersPresentFlag.Value)
|| (_vclHrdParametersPresentFlag.HasValue && _vclHrdParametersPresentFlag.Value);
if (CpbDpbDelaysPresentFlag)
{
if (!_cpbRemovalDelayLengthMinus1.HasValue)
return;
var cpb_removal_delay = r.ReadBits((int)_cpbRemovalDelayLengthMinus1.Value + 1);
if (!_dpbOutputDelayLengthMinus1.HasValue)
return;
var dpb_output_delay = r.ReadBits((int)_dpbOutputDelayLengthMinus1.Value + 1);
}
if (_picStructPresentFlag.HasValue && _picStructPresentFlag.Value)
{
var pic_struct = r.ReadBits(4);
_picStruct = pic_struct;
var nct = GetNumClockTs();
if (!nct.HasValue)
return;
var NumClockTS = nct.Value;
for (var i = 0; i < NumClockTS; i++)
{
var clock_timestamp_flag_i = r.ReadBits(1);
if (0 != clock_timestamp_flag_i)
{
var ct_type = r.ReadBits(2);
var nuit_field_based_flag = r.ReadBits(1);
var counting_type = r.ReadBits(5);
var full_timestamp_flag = r.ReadBits(1);
var discontinuity_flag = r.ReadBits(1);
var cnt_dropped_flag = r.ReadBits(1);
var n_frames = r.ReadBits(8);
if (0 != full_timestamp_flag)
{
var seconds_value /* 0..59 */ = r.ReadBits(6);
var minutes_value /* 0..59 */ = r.ReadBits(6);
var hours_value /* 0..23 */ = r.ReadBits(5);
}
else
{
var seconds_flag = r.ReadBits(1);
if (0 != seconds_flag)
{
var seconds_value /* range 0..59 */ = r.ReadBits(6);
var minutes_flag = r.ReadBits(1);
if (0 != minutes_flag)
{
var minutes_value /* 0..59 */ = r.ReadBits(6);
var hours_flag = r.ReadBits(1);
if (0 != hours_flag)
{
var hours_value /* 0..23 */ = r.ReadBits(5);
}
}
}
}
var time_offset_length = _timeOffsetLength ?? 24;
if (time_offset_length > 0)
{
var time_offset = r.ReadSignedBits((int)time_offset_length);
}
}
}
}
}
