回覆: Re: A newbie question abou t receiver report

Hi, after verify, isWaiting() is a blocking function.
Thus this while look is a infinite loop.

Thanks for your response.

Jeff
--- Federico Montesino Pouzols <[email protected]>
隤迎

> 
> Hi, after a quick look at the code, I think the
> problem is your main
> loop exits when there are no packets in the
> reception queue. Suppose
> your program starts and no packet has been receive
> before:
> 
> >         while(socket->isWaiting()) {
> >              receive(socket);
> >         }
> 
> And suppose a number of packets are available, but
> after processing
> them the queue becomes empty. I would try an
> infinite loop like
> "for(;;)".
> 
> On Sun, Nov 06, 2005 at 09:27:26AM +0800, ?? ???Z
> wrote:
> > Hi:
> >  I write a simple program to receive rtp packets
> from
> > a ip cam(SNC-DF40N).  However, my program can't
> > receive
> >  packets continually.  Do I forget anythine esle?
> > 
> > Thanks for help.
> > 
> > Jeff
> > 
> > 
> > my source: (If I use JRTPLIB, it can work fine)
> >
>
--------------------------------------------------------------------------
> > #include <iostream>
> > #include <cstdlib>     
> > #include <ccrtp/rtp.h>
> > 
> > using namespace std;
> > using namespace ost;
> > 
> > void receive(RTPSession *socket)
> > {
> >         int ts = socket->getFirstTimestamp();
> >         const AppDataUnit* adu;
> >         adu = socket->getData(ts);
> >         if ( adu != NULL ) {
> >                 cout<<"packet type:
> > "<<adu->getType()<<endl;
> >         }
> >         delete adu;
> > }
> > int main()
> > {
> >         RTPSession *socket = new
> > RTPSession(InetHostAddress("0.0.0.0"), 30000);
> >        
> >
>
socket->addDestination(InetHostAddress("192.168.4.100"),
> > 50000);
> >         socket->startRunning();
> >             
> >         while(socket->isWaiting()) {
> >              receive(socket);
> >         }
> >         
> >         delete socket;
> > }
> > 
> > 
> >
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> 


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