ld->Rdptr++;
code=Get_Byte(); /* parse PES_header_data_length */
ld->Rdptr+=code; /* advance pointer by PES_header_data_length */
ld->Rdptr++;
code=Get_Byte(); /* parse PES_header_data_length */
ld->Rdptr+=code; /* advance pointer by PES_header_data_length */