void cLiveStreamer::sendStreamPacket(sStreamPacket *pkt)
{
bool bReady = IsReady();
if(!bReady || pkt == NULL || pkt->size == 0)
return;
// Send stream information as the first packet on startup
if (IsStarting() && bReady)
{
// wait for first I-Frame (if enabled)
if(m_waitforiframe && pkt->frametype != cStreamInfo::ftIFRAME) {
return;
}
INFOLOG("streaming of channel started");
m_last_tick.Set(0);
m_requestStreamChange = true;
m_startup = false;
}
// send stream change on demand
if(m_requestStreamChange)
sendStreamChange();
// if a audio or video packet was sent, the signal is restored
if(m_SignalLost && (pkt->content == cStreamInfo::scVIDEO || pkt->content == cStreamInfo::scAUDIO)) {
INFOLOG("signal restored");
sendStatus(XVDR_STREAM_STATUS_SIGNALRESTORED);
m_SignalLost = false;
m_requestStreamChange = true;
m_last_tick.Set(0);
return;
}
if(m_SignalLost)
return;
// initialise stream packet
MsgPacket* packet = new MsgPacket(XVDR_STREAM_MUXPKT, XVDR_CHANNEL_STREAM);
packet->disablePayloadCheckSum();
// write stream data
packet->put_U16(pkt->pid);
packet->put_S64(pkt->pts);
packet->put_S64(pkt->dts);
if(m_protocolVersion >= 5) {
packet->put_U32(pkt->duration);
}
// write frame type into unused header field clientid
packet->setClientID((uint16_t)pkt->frametype);
// write payload into stream packet
packet->put_U32(pkt->size);
packet->put_Blob(pkt->data, pkt->size);
m_Queue->Add(packet);
m_last_tick.Set(0);
}
void cLiveStreamer::Action(void)
{
int size = 0;
unsigned char *buf = NULL;
m_startup = true;
// reset timer
m_last_tick.Set(0);
INFOLOG("streamer thread started.");
while (Running())
{
size = 0;
buf = Get(size);
// try to switch channel if we aren't attached yet
{
cMutexLock lock(&m_FilterMutex);
if (!IsAttached()) {
TryChannelSwitch();
}
}
if(!IsStarting() && (m_last_tick.Elapsed() > (uint64_t)(m_scanTimeout*1000)) && !m_SignalLost)
{
INFOLOG("timeout. signal lost!");
sendStatus(XVDR_STREAM_STATUS_SIGNALLOST);
m_SignalLost = true;
// retune to restore
cMutexLock lock(&m_FilterMutex);
if(m_PatFilter != NULL && m_Device != NULL) {
m_Device->Detach(m_PatFilter);
delete m_PatFilter;
m_PatFilter = NULL;
}
if(IsAttached()) {
Detach();
}
}
// no data
if (buf == NULL || size <= TS_SIZE)
continue;
// Sync to TS packet
int used = 0;
while (size > TS_SIZE)
{
if (buf[0] == TS_SYNC_BYTE && buf[TS_SIZE] == TS_SYNC_BYTE)
break;
used++;
buf++;
size--;
}
Del(used);
while (size >= TS_SIZE)
{
if(!Running())
break;
// TS packet sync not found !
if (buf[0] != TS_SYNC_BYTE)
break;
unsigned int ts_pid = TsPid(buf);
{
cMutexLock lock(&m_FilterMutex);
cTSDemuxer *demuxer = FindStreamDemuxer(ts_pid);
if (demuxer)
demuxer->ProcessTSPacket(buf);
}
buf += TS_SIZE;
size -= TS_SIZE;
Del(TS_SIZE);
}
}
INFOLOG("streamer thread ended.");
}
void cLiveStreamer::Action(void)
{
int size = 0;
unsigned char *buf = NULL;
m_startup = true;
while (Running())
{
size = 0;
buf = Get(size);
{
cMutexLock lock(&m_FilterMutex);
if (!IsAttached())
{
INFOLOG("returning from streamer thread, receiver is no more attached");
Clear();
sendDetach();
return;
}
}
if(!IsStarting() && (m_last_tick.Elapsed() > (uint64_t)(m_scanTimeout*1000)) && !m_SignalLost)
{
INFOLOG("timeout. signal lost!");
sendStatus(XVDR_STREAM_STATUS_SIGNALLOST);
m_SignalLost = true;
}
// no data
if (buf == NULL || size <= TS_SIZE)
continue;
// Sync to TS packet
int used = 0;
while (size > TS_SIZE)
{
if (buf[0] == TS_SYNC_BYTE && buf[TS_SIZE] == TS_SYNC_BYTE)
break;
used++;
buf++;
size--;
}
Del(used);
while (size >= TS_SIZE)
{
if(!Running())
break;
// TS packet sync not found !
if (buf[0] != TS_SYNC_BYTE)
break;
unsigned int ts_pid = TsPid(buf);
{
cMutexLock lock(&m_FilterMutex);
cTSDemuxer *demuxer = FindStreamDemuxer(ts_pid);
if (demuxer)
demuxer->ProcessTSPacket(buf);
}
buf += TS_SIZE;
size -= TS_SIZE;
Del(TS_SIZE);
}
}
}
