Stamp (PTS). As for the reference timestamps,
the ElementaryStream Clock Reference (ESCR) is used in the Packetized
Elementary Stream(PES), the Stream Clock Reference (SCR) is used
Stream (PS), and theProgram
Clock Reference (PCR) is used when transporting data packets
. The Elementary Stream Clock Reference (ESCR) is one of the timestamps of the Packetized Elementary Stream (PES) in digital TV. The decoders derive their reference time from this time stamp.