We had a similar problem with MPEG2 files that are hardware
encoded with a Hauppauge PVR-150 card (CBR file). The PCR
timestamps increase regularly but infrequently.
I fully understand that the liveMedia code should not be modified
but in case it's helpful to anyone, our workaround was to change
MPEG2TransportStreamFramer.cpp so that:
#define NEW_DURATION_WEIGHT 0.05
also due to the size of the jitter buffer on the receiver we have:
#define MAX_PLAYOUT_BUFFER_DURATION 0.25
Yes, setting values for those 4 parameters in
"MPEG2TransportStreamFramer.cpp" is, unfortunately, somewhat of a
'black art'; it's going to be hard - if not impossible - to find
values that will work well for everybody.
Note, though, that each of these definitions is enclosed by
#if !defined( ... )
#endif
So it's possible to change these values without changing the file
"MPEG2TransportStreamFramer.cpp" itself. (E.g., you could define
your new values on the command line when you compile the file.)
--
Ross Finlayson
Live Networks, Inc.
http://www.live555.com/
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