Setup general HRD parameters
Method SEIReader::parseSEImessage() tries to validate Picture Timing SEI.
(See "When general_same_pic_timing_in_all_ols_flag is equal to 1")
To do so it accesses general HRD parameters stored in m_HRD object.
But general HRD parameters in m_HRD are never setup.
Edited by Nikolay Shostak