void cLivePatFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length)
{
if (Pid == 0x00)
{
if (Tid == 0x00)
{
SI::PAT pat(Data, false);
if (!pat.CheckCRCAndParse())
return;
SI::PAT::Association assoc;
for (SI::Loop::Iterator it; pat.associationLoop.getNext(assoc, it); )
{
if (!assoc.isNITPid())
{
const cChannel *Channel = Channels.GetByServiceID(Source(), Transponder(), assoc.getServiceId());
if (Channel && (Channel == m_Channel))
{
int prevPmtPid = m_pmtPid;
if (0 != (m_pmtPid = assoc.getPid()))
{
if (m_pmtPid != prevPmtPid)
{
m_pmtSid = assoc.getServiceId();
Add(m_pmtPid, 0x02);
m_pmtVersion = -1;
break;
}
return;
}
}
}
}
}
}
else if (Pid == m_pmtPid && Tid == SI::TableIdPMT && Source() && Transponder())
{
SI::PMT pmt(Data, false);
if (!pmt.CheckCRCAndParse())
return;
if (pmt.getServiceId() != m_pmtSid)
return; // skip broken PMT records
if (m_pmtVersion != -1)
{
if (m_pmtVersion != pmt.getVersionNumber())
{
cFilter::Del(m_pmtPid, 0x02);
m_pmtPid = 0; // this triggers PAT scan
}
return;
}
m_pmtVersion = pmt.getVersionNumber();
cChannel *Channel = Channels.GetByServiceID(Source(), Transponder(), pmt.getServiceId());
if (Channel) {
// Scan the stream-specific loop:
SI::PMT::Stream stream;
int Vpid = 0;
int Ppid = 0;
int Vtype = 0;
int Apids[MAXAPIDS + 1] = { 0 }; // these lists are zero-terminated
int Atypes[MAXAPIDS + 1] = { 0 };
int Dpids[MAXDPIDS + 1] = { 0 };
int Dtypes[MAXDPIDS + 1] = { 0 };
int Spids[MAXSPIDS + 1] = { 0 };
uchar SubtitlingTypes[MAXSPIDS + 1] = { 0 };
uint16_t CompositionPageIds[MAXSPIDS + 1] = { 0 };
uint16_t AncillaryPageIds[MAXSPIDS + 1] = { 0 };
char ALangs[MAXAPIDS][MAXLANGCODE2] = { "" };
char DLangs[MAXDPIDS][MAXLANGCODE2] = { "" };
char SLangs[MAXSPIDS][MAXLANGCODE2] = { "" };
int Tpid = 0;
int NumApids = 0;
int NumDpids = 0;
int NumSpids = 0;
for (SI::Loop::Iterator it; pmt.streamLoop.getNext(stream, it); ) {
bool ProcessCaDescriptors = false;
int esPid = stream.getPid();
switch (stream.getStreamType()) {
case 1: // STREAMTYPE_11172_VIDEO
case 2: // STREAMTYPE_13818_VIDEO
case 0x1B: // MPEG4
Vpid = esPid;
Ppid = pmt.getPCRPid();
Vtype = stream.getStreamType();
ProcessCaDescriptors = true;
break;
case 3: // STREAMTYPE_11172_AUDIO
case 4: // STREAMTYPE_13818_AUDIO
case 0x0F: // ISO/IEC 13818-7 Audio with ADTS transport syntax
case 0x11: // ISO/IEC 14496-3 Audio with LATM transport syntax
{
if (NumApids < MAXAPIDS) {
Apids[NumApids] = esPid;
Atypes[NumApids] = stream.getStreamType();
SI::Descriptor *d;
for (SI::Loop::Iterator it; (d = stream.streamDescriptors.getNext(it)); ) {
switch (d->getDescriptorTag()) {
case SI::ISO639LanguageDescriptorTag: {
SI::ISO639LanguageDescriptor *ld = (SI::ISO639LanguageDescriptor *)d;
SI::ISO639LanguageDescriptor::Language l;
char *s = ALangs[NumApids];
int n = 0;
for (SI::Loop::Iterator it; ld->languageLoop.getNext(l, it); ) {
if (*ld->languageCode != '-') { // some use "---" to indicate "none"
if (n > 0)
*s++ = '+';
strn0cpy(s, I18nNormalizeLanguageCode(l.languageCode), MAXLANGCODE1);
s += strlen(s);
if (n++ > 1)
break;
}
}
}
break;
default: ;
}
delete d;
}
NumApids++;
}
ProcessCaDescriptors = true;
}
break;
case 5: // STREAMTYPE_13818_PRIVATE
case 6: // STREAMTYPE_13818_PES_PRIVATE
//XXX case 8: // STREAMTYPE_13818_DSMCC
{
int dpid = 0;
int dtype = 0;
char lang[MAXLANGCODE1] = { 0 };
SI::Descriptor *d;
for (SI::Loop::Iterator it; (d = stream.streamDescriptors.getNext(it)); ) {
switch (d->getDescriptorTag()) {
case SI::AC3DescriptorTag:
case SI::EnhancedAC3DescriptorTag:
dpid = esPid;
dtype = d->getDescriptorTag();
ProcessCaDescriptors = true;
break;
case SI::SubtitlingDescriptorTag:
if (NumSpids < MAXSPIDS) {
Spids[NumSpids] = esPid;
SI::SubtitlingDescriptor *sd = (SI::SubtitlingDescriptor *)d;
SI::SubtitlingDescriptor::Subtitling sub;
char *s = SLangs[NumSpids];
int n = 0;
for (SI::Loop::Iterator it; sd->subtitlingLoop.getNext(sub, it); ) {
if (sub.languageCode[0]) {
SubtitlingTypes[NumSpids] = sub.getSubtitlingType();
CompositionPageIds[NumSpids] = sub.getCompositionPageId();
AncillaryPageIds[NumSpids] = sub.getAncillaryPageId();
if (n > 0)
*s++ = '+';
strn0cpy(s, I18nNormalizeLanguageCode(sub.languageCode), MAXLANGCODE1);
s += strlen(s);
if (n++ > 1)
break;
}
}
NumSpids++;
}
break;
case SI::TeletextDescriptorTag:
Tpid = esPid;
break;
case SI::ISO639LanguageDescriptorTag: {
SI::ISO639LanguageDescriptor *ld = (SI::ISO639LanguageDescriptor *)d;
strn0cpy(lang, I18nNormalizeLanguageCode(ld->languageCode), MAXLANGCODE1);
}
break;
default: ;
}
delete d;
}
if (dpid) {
if (NumDpids < MAXDPIDS) {
Dpids[NumDpids] = dpid;
Dtypes[NumDpids] = dtype;
strn0cpy(DLangs[NumDpids], lang, MAXLANGCODE1);
NumDpids++;
}
}
}
break;
case 0x80: // STREAMTYPE_USER_PRIVATE
#if APIVERSNUM >= 10728
if (Setup.StandardCompliance == STANDARD_ANSISCTE)
#endif
{ // DigiCipher II VIDEO (ANSI/SCTE 57)
Vpid = esPid;
Ppid = pmt.getPCRPid();
Vtype = 0x02; // compression based upon MPEG-2
ProcessCaDescriptors = true;
break;
}
// fall through
case 0x81: // STREAMTYPE_USER_PRIVATE
#if APIVERSNUM >= 10728
if (Setup.StandardCompliance == STANDARD_ANSISCTE)
#endif
{ // ATSC A/53 AUDIO (ANSI/SCTE 57)
char lang[MAXLANGCODE1] = { 0 };
SI::Descriptor *d;
for (SI::Loop::Iterator it; (d = stream.streamDescriptors.getNext(it)); ) {
switch (d->getDescriptorTag()) {
case SI::ISO639LanguageDescriptorTag: {
SI::ISO639LanguageDescriptor *ld = (SI::ISO639LanguageDescriptor *)d;
strn0cpy(lang, I18nNormalizeLanguageCode(ld->languageCode), MAXLANGCODE1);
}
break;
default: ;
}
delete d;
}
if (NumDpids < MAXDPIDS) {
Dpids[NumDpids] = esPid;
Dtypes[NumDpids] = SI::AC3DescriptorTag;
strn0cpy(DLangs[NumDpids], lang, MAXLANGCODE1);
NumDpids++;
}
ProcessCaDescriptors = true;
break;
}
// fall through
case 0x82: // STREAMTYPE_USER_PRIVATE
#if APIVERSNUM >= 10728
if (Setup.StandardCompliance == STANDARD_ANSISCTE)
#endif
{ // STANDARD SUBTITLE (ANSI/SCTE 27)
//TODO
break;
}
// fall through
case 0x83 ... 0xFF: // STREAMTYPE_USER_PRIVATE
{
char lang[MAXLANGCODE1] = { 0 };
bool IsAc3 = false;
SI::Descriptor *d;
for (SI::Loop::Iterator it; (d = stream.streamDescriptors.getNext(it)); ) {
switch (d->getDescriptorTag()) {
case SI::RegistrationDescriptorTag: {
SI::RegistrationDescriptor *rd = (SI::RegistrationDescriptor *)d;
// http://www.smpte-ra.org/mpegreg/mpegreg.html
switch (rd->getFormatIdentifier()) {
case 0x41432D33: // 'AC-3'
IsAc3 = true;
break;
default:
//printf("Format identifier: 0x%08X (pid: %d)\n", rd->getFormatIdentifier(), esPid);
break;
}
}
break;
case SI::ISO639LanguageDescriptorTag: {
SI::ISO639LanguageDescriptor *ld = (SI::ISO639LanguageDescriptor *)d;
strn0cpy(lang, I18nNormalizeLanguageCode(ld->languageCode), MAXLANGCODE1);
}
break;
default: ;
}
delete d;
}
if (IsAc3) {
if (NumDpids < MAXDPIDS) {
Dpids[NumDpids] = esPid;
Dtypes[NumDpids] = SI::AC3DescriptorTag;
strn0cpy(DLangs[NumDpids], lang, MAXLANGCODE1);
NumDpids++;
}
ProcessCaDescriptors = true;
}
}
break;
default: ;//printf("PID: %5d %5d %2d %3d %3d\n", pmt.getServiceId(), stream.getPid(), stream.getStreamType(), pmt.getVersionNumber(), Channel->Number());
}
}
cChannel pmtChannel(*Channel);
pmtChannel.SetPids(Vpid, Ppid, Vtype, Apids, Atypes, ALangs, Dpids, Dtypes, DLangs, Spids, SLangs, Tpid);
pmtChannel.SetSubtitlingDescriptors(SubtitlingTypes, CompositionPageIds, AncillaryPageIds);
m_Streamer->SetTpid(Tpid);
cPatPmtGenerator patPmtGenerator(&pmtChannel);
m_Streamer->m_bufferLock.Lock();
m_Streamer->Put(patPmtGenerator.GetPat(), TS_SIZE);
int Index = 0;
while (uchar *pmt = patPmtGenerator.GetPmt(Index))
m_Streamer->Put(pmt, TS_SIZE);
m_Streamer->m_bufferLock.Unlock();
}
}
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;
}
