* @param filter_ps whether to write parameter set NAL units to the output (0)
* or to discard them (non-zero)
* @param ps_count address of the variable where the number of discarded
* parameter set NAL units shall be written, may be NULL
* @param filter_ps whether to write parameter set NAL units to the output (0)
* or to discard them (non-zero)
* @param ps_count address of the variable where the number of discarded
* parameter set NAL units shall be written, may be NULL