int cVNSIDemuxer::Read(sStreamPacket *packet)
{
uint8_t *buf;
int len;
cTSStream *stream;
cMutexLock lock(&m_Mutex);
// clear packet
if (!packet)
return -1;
packet->data = NULL;
packet->streamChange = false;
packet->pmtChange = false;
// read TS Packet from buffer
len = m_VideoBuffer->Read(&buf, TS_SIZE, m_endTime, m_wrapTime);
// eof
if (len == -2)
return -2;
else if (len != TS_SIZE)
return -1;
m_Error &= ~ERROR_DEMUX_NODATA;
int ts_pid = TsPid(buf);
// parse PAT/PMT
if (ts_pid == PATPID)
{
m_PatPmtParser.ParsePat(buf, TS_SIZE);
}
#if APIVERSNUM >= 10733
else if (m_PatPmtParser.IsPmtPid(ts_pid))
#else
else if (ts_pid == m_PatPmtParser.PmtPid())
#endif
{
int patVersion, pmtVersion;
m_PatPmtParser.ParsePmt(buf, TS_SIZE);
if (m_PatPmtParser.GetVersions(patVersion, pmtVersion))
{
if (pmtVersion != m_OldPmtVersion)
{
cChannel pmtChannel(m_CurrentChannel);
SetChannelPids(&pmtChannel, &m_PatPmtParser);
SetChannelStreams(&pmtChannel);
m_PatPmtParser.Reset();
m_OldPmtVersion = pmtVersion;
if (EnsureParsers())
{
packet->pmtChange = true;
return 1;
}
}
}
}
else if (stream = FindStream(ts_pid))
{
int error = stream->ProcessTSPacket(buf, packet, m_WaitIFrame);
if (error == 0)
{
if (m_WaitIFrame)
{
if (packet->pts != DVD_NOPTS_VALUE)
m_FirstFramePTS = packet->pts;
m_WaitIFrame = false;
}
if (packet->pts < m_FirstFramePTS)
return 0;
packet->serial = m_MuxPacketSerial;
if (m_SetRefTime)
{
m_refTime = m_VideoBuffer->GetRefTime();
packet->reftime = m_refTime;
m_SetRefTime = false;
}
return 1;
}
else if (error < 0)
{
m_Error |= abs(error);
}
}
return 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);
}
}
}
