/***************************************
* ViPER-MPEG *
* The Video Processing *
* Evaluation Resource *
* MPEG-1 Decoder *
* Distributed under the LGPL license *
* Terms available at gnu.org. *
* *
* Copyright University of Maryland, *
* College Park. *
***************************************/
package edu.umd.cfar.lamp.mpeg1.system;
/**
* Corresponds to presentation_time_stamp in ISO/IEC 11172-1.<br>
* <br>
* "The presentation_time_stamp (PTS) is a 33-bit number coded in three
* separate fields. It indicates the intended time of presentation in
* the system target decoder of the presentation unit that corresponds
* to the first access unit that commences in the packet. The value
* of PTS is measured in the number of periods of a 90kHz system clock
* with a tolerance specified in 2.4.2. Using the notation of 2.4.2
* the value encoded in the presentation_time_stamp is:<br>
* <br>
* PTS = NINT (system_clock_frequency * (tp_n(k))) & 2^33<br>
* where<br>
* tp_n(k) is the presentation time of presentation unit P_n(k).<br>
* <br>
* P_n(k) is the presentation unit corresponding to the first access
* unit that commences in the packet data. An access unit commences
* in the packet if the first byte of a video picture start code or
* the first byte of the synchronization word of an audio frame
* (see ISO/IEC 11172-2 and ISO/IEC 11172-3) is present in the packet
* data.<br>
* <br>
* If there is filtering in audio, it is assumed by the system model that
* filtering introduces no delay, hence the sample referred to by PTS at
* encoding is the same sample referred to PTS at decoding."<br>
* <br>
* - ISO/IEC 11172-1 Section 2.4.4.3
*/
public class PresentationTimeStamp extends BaseTimeStamp {
}