unsigned int RtpSource::GetPacketData(char* buffer, unsigned int length, unsigned int *firstSequenceNumber, unsigned int *lastSequenceNumber, bool getUncontinousPackets)
{
unsigned int result = UINT_MAX;
bool setFirstSequenceNumber = false;
if ((this->firstRtpPacket != NULL) && (firstSequenceNumber != NULL) && (lastSequenceNumber != NULL))
{
result = 0;
bool finishWork = false;
RtpPacket *currentRtpPacket = this->firstRtpPacket;
while (!finishWork)
{
unsigned int freeSpace = length - result;
finishWork = (currentRtpPacket->GetDataLength() >= freeSpace);
if (!finishWork)
{
// in buffer is enough free space for data from first RTP packet
int copiedDataLength = currentRtpPacket->GetData(buffer + result, freeSpace);
if (copiedDataLength >= 0)
{
// no error occured
result += copiedDataLength;
if (!setFirstSequenceNumber)
{
*firstSequenceNumber = currentRtpPacket->GetSequenceNumber();
setFirstSequenceNumber = true;
}
else
{
*lastSequenceNumber = currentRtpPacket->GetSequenceNumber();
}
}
// if error occured we skip this RTP packet
if (currentRtpPacket->GetNextPacket() != NULL)
{
// check if next packet is continous
bool isContinous = this->IsSequenceContinuous(currentRtpPacket->GetSequenceNumber(), currentRtpPacket->GetNextPacket()->GetSequenceNumber());
if (!isContinous)
{
this->logger->Log(LOGGER_WARNING, _T("%s: %s: got uncontinous packet, last sequence number: %u"), PROTOCOL_IMPLEMENTATION_NAME, METHOD_GET_PACKET_DATA_NAME, currentRtpPacket->GetSequenceNumber());
}
finishWork |= ((!getUncontinousPackets) && (!isContinous));
}
finishWork |= (currentRtpPacket->GetNextPacket() == NULL);
if (!finishWork)
{
// move to next packet
currentRtpPacket = currentRtpPacket->GetNextPacket();
}
}
}
}
return result;
}
RtpPacket *RtpSource::GetInternalRtpPacket(unsigned int sequenceNumber)
{
RtpPacket *result = NULL;
RtpPacket *currentRtpPacket = this->firstRtpPacket;
while ((currentRtpPacket != NULL) && (result == NULL))
{
if (currentRtpPacket->GetSequenceNumber() == sequenceNumber)
{
result = currentRtpPacket;
}
currentRtpPacket = currentRtpPacket->GetNextPacket();
}
return result;
}
