// Thread function for RTP session.
static void* rtpSessionThread(void *arg)
{
VideoStream* video = reinterpret_cast<VideoStream*>(arg);
u_int8_t bigBuffer[MAX_FRAME_SIZE];
unsigned int lastPacketTimestamp = 0;
unsigned int currentIndex = 0;
double last_time = 0;
RTPSession session = createRtpSession(video->getMulticastIP(),
video->getPort());
while (1) {
session.Poll();
// Distribute data from the session to connected clients if we've
// got anything
session.BeginDataAccess();
if (session.GotoFirstSourceWithData()) {
do {
RTPPacket *packet = NULL;
while ((packet = session.GetNextPacket()) != NULL) {
if ((packet->GetPayloadLength() > sizeof(bigBuffer)) ||
(packet->GetPayloadLength() == 0)) {
// Free the packet, we're not going to use it.
session.DeletePacket(packet);
continue; // Exit this level of the loop and drop it
}
// Check timestamps for new data. A new timestamp means
// this is from a different time.
if (packet->GetTimestamp() != lastPacketTimestamp) {
video->decode((uint8_t*)&bigBuffer[0], currentIndex);
currentIndex = 0;
memset(&bigBuffer[0], 0, sizeof(bigBuffer));
} // End new timestamp optimization.
// Copy data into buffer
if (currentIndex + packet->GetPayloadLength() > sizeof(bigBuffer)) {
throw std::runtime_error("Frame buffer overflow");
}
memcpy(&bigBuffer[currentIndex], packet->GetPayloadData(),
packet->GetPayloadLength());
currentIndex += packet->GetPayloadLength();
// Mark our last timestamp
lastPacketTimestamp = packet->GetTimestamp();
// Free the packet.
session.DeletePacket(packet);
}
} while (session.GotoNextSourceWithData());
}
session.EndDataAccess();
RTPTime delay(0, 100); // 100usec
// Update More Data
bool moreData;
session.WaitForIncomingData(delay, &moreData);
}
// Leave the session while sending BYE.
RTPTime timeout(0.75f); // Wait briefly.
const char* reason = "Session Destroyed.";
unsigned int reasonlen = strlen(reason);
if (session.IsActive())
session.BYEDestroy(timeout, reason, reasonlen);
}
void Java_cn_nickwar_MainActivity_nativeWorker(JNIEnv* env, jobject obj) {
uint16_t portbase=8000,destport=9000;
std::string ipstr="192.168.1.102";
uint32_t destip=inet_addr(ipstr.c_str());
int status,i,num;
RTPSession session;
RTPSessionParams sessionparams;
RTPUDPv4TransmissionParams transparams;
RTPIPv4Address addr;
if (destip == INADDR_NONE) {
__android_log_print(ANDROID_LOG_DEBUG, "pspm.native", "Bad IP address specified");
}
destip = ntohl(destip);
num = 40;
sessionparams.SetOwnTimestampUnit(1.0/10.0);
sessionparams.SetAcceptOwnPackets(true);
transparams.SetPortbase(portbase);
addr.SetIP(destip);
addr.SetPort(destport);
status = session.Create(sessionparams,&transparams);
if (status<0) {
std::string tmp = "Create:";
__android_log_print(ANDROID_LOG_DEBUG, "pspm.native", (tmp+RTPGetErrorString(status)).c_str());
}
status = session.AddDestination(addr);
if (status<0) {
std::string tmp = "AddDestination:";
__android_log_print(ANDROID_LOG_DEBUG, "pspm.native", (tmp+RTPGetErrorString(status)).c_str());
}
while(!m_bExitApp)
{
session.BeginDataAccess();
unsigned char *buff = NULL;
if (session.GotoFirstSourceWithData())
{
do
{
RTPPacket *pack;
while((pack = session.GetNextPacket()) !=NULL)
{
__android_log_print(ANDROID_LOG_DEBUG, "pspm.native", "got packet!\n");
char message[26];
sprintf(message, "got packet");
jstring messageString = env->NewStringUTF(message);
env->CallVoidMethod(obj, rtpresultFromJNI, messageString);
if (NULL != env->ExceptionOccurred()) {
// break;
continue;
}
if (pack->GetPayloadLength()>0) {
buff = pack->GetPayloadData();
__android_log_print(ANDROID_LOG_DEBUG, "pspm.native", "packt data:%s",buff);
}
session.DeletePacket(pack);
}
}
while(session.GotoNextSourceWithData());
}
session.EndDataAccess();
//
#ifndef RTP_SUPPORT_THREAD
status = sess.Poll();
if (status<0) {
session.Destroy();
return;
}
#endif
RTPTime::Wait(RTPTime(0,5000));
}
session.Destroy();
return;
}
