[linux-dvb] relating PTS to 'real' time

Dr. Werner Fink werner at suse.de
Tue Aug 23 19:07:39 CEST 2005


On Tue, Aug 23, 2005 at 06:47:54PM +0200, Robert Schlabbach wrote:
> From: "Dr. Werner Fink" <werner at suse.de>
> > On Tue, Aug 23, 2005 at 04:54:49PM +0200, Rene Bartsch wrote:
> > > Which measurement is used for PTS/PTR? Nanoseconds?
> > Normally ticks within a 90kHz clock are used for that.
> 
> >From ITU-T H.222.0:
> 
> | Time stamps are generally in units of 90 kHz, but the System Clock
> | Reference (SCR), the Program Clock Reference (PCR) and the optional
> | Elementary Stream Clock Reference (ESCR) have extensions with a
> | resolution of 27 MHz.

He has ask about PTS/PCR not SCR :)

       Werner

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