void* RTPSessionInterface::PacketLossPercent(QTSSDictionary* inSession, UInt32* outLen)
{
RTPSessionInterface* theSession = (RTPSessionInterface*)inSession;
RTPStream* theStream = NULL;
UInt32 theLen = sizeof(theStream);
SInt64 packetsLost = 0;
SInt64 packetsSent = 0;
for (int x = 0; theSession->GetValue(qtssCliSesStreamObjects, x, (void*)&theStream, &theLen) == QTSS_NoErr; x++)
{
if (theStream != NULL)
{
UInt32 streamCurPacketsLost = 0;
theLen = sizeof(UInt32);
(void)theStream->GetValue(qtssRTPStrCurPacketsLostInRTCPInterval, 0, &streamCurPacketsLost, &theLen);
//qtss_printf("stream = %d streamCurPacketsLost = %" _U32BITARG_ " \n",x, streamCurPacketsLost);
UInt32 streamCurPackets = 0;
theLen = sizeof(UInt32);
(void)theStream->GetValue(qtssRTPStrPacketCountInRTCPInterval, 0, &streamCurPackets, &theLen);
//qtss_printf("stream = %d streamCurPackets = %" _U32BITARG_ " \n",x, streamCurPackets);
packetsSent += (SInt64)streamCurPackets;
packetsLost += (SInt64)streamCurPacketsLost;
//qtss_printf("stream calculated loss = %f \n",x, (Float32) streamCurPacketsLost / (Float32) streamCurPackets);
}
theStream = NULL;
theLen = sizeof(UInt32);
}
//Assert(packetsLost <= packetsSent);
if (packetsSent > 0)
{
if (packetsLost <= packetsSent)
theSession->fPacketLossPercent = (Float32)((((Float32)packetsLost / (Float32)packetsSent) * 100.0));
else
theSession->fPacketLossPercent = 100.0;
}
else
theSession->fPacketLossPercent = 0.0;
//qtss_printf("Session loss percent packetsLost = %qd packetsSent= %qd theSession->fPacketLossPercent=%f\n",packetsLost,packetsSent,theSession->fPacketLossPercent);
// Return the result
*outLen = sizeof(theSession->fPacketLossPercent);
return &theSession->fPacketLossPercent;
}
