[Live-devel] RTP Timestamp doesn't change

[Ross Finlayson]

At 07:09 AM 4/2/2006, you wrote:
>Hello,
>
>Although I increment fPresentationTime in my code, the timestamps in 
>the RTP packets are always the same.
>How come?

I don't know (because I don't know your code).  However, you should 
check the chain of sources that feed into your "RTPSink" 
subclasses.  In one of those sources, perhaps you're not setting 
"fPresentationTime" when implementing "doGetNextFrame()".

>  Should I override MultiFramedRTPSink::doSpecialFrameHandling()?

No (if you're using one of the "RTPSink" subclasses that are already 
provided in the library; they should already do the right thing).

However, if you're using "H263plusVideoRTPSink", you should check 
your flow of control within its "doSpecialFrameHandling()", to make 
sure that you're reaching the end of this function (where the RTP 
timestamp gets set) - i.e., without error.

Remember, You Have Complete Source Code.

>      //gettimeofday(&fPresentationTime, NULL); //can't be called on windows

Not true!!  For Windows, we provide our own implementation of 
"gettimeofday()" (see "groupsock/GroupsockHelper.cpp").


	Ross Finlayson
	Live Networks, Inc. (LIVE555.COM)
	<http://www.live555.com/>