[Live-devel] Relaying a unicast stream.

[Mark Woodard]

I have adapted the testRTSPClient sample to receive a stream from my UDP
source. Now I need to relay the data to another UDP address.

So I tried replacing the "DummySink" in testRTSPClient with the
BasicUDPSink used in testRelay. It was almost a one-for-one replacement.
But it doesn't work: it crashes the first time the datasink tries to write
something to its output socket.

Should I be starting with a different sample, or can this be resolved?

Thanks

Code:
--------------------------------------------------------
I replaced this (from testRTSPClient)...

void continueAfterSETUP(RTSPClient* rtspClient, int resultCode, char*
resultString) {
  do {
...
    scs.subsession->sink = DummySink::createNew(env, *scs.subsession,
rtspClient->url());
...
}

with this...

void continueAfterSETUP(RTSPClient* rtspClient, int resultCode, char*
resultString) {
  do {
...
        scs.subsession->sink = OurRelaySink::CreateNew(env,
destinationAddress, 65535);
...
}

where CreateNew is defined as

OurRelaySink* OurRelaySink::CreateNew(UsageEnvironment& env, string&
destUrl, unsigned packetSize)
{
    // Create a 'groupsock' for the destination address and port
    string scheme, host;
    unsigned nPort;
    if (CrackEndpoint(destUrl.c_str(), scheme, host, nPort))
    {
        struct in_addr outputAddress;
        outputAddress.s_addr = our_inet_addr(host.c_str());
        Port const outputPort(nPort);
        unsigned char const outputTTL = 255;

        Groupsock outputGroupsock(env, outputAddress, outputPort,
outputTTL);

        return (OurRelaySink*)BasicUDPSink::createNew(env,
&outputGroupsock, packetSize);
    }
    return NULL;
}
___________________________________________________
Mark Woodard

Mutualink, Inc.
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