add possibility to playback ts files without entry in recordings.epl or without meta...
[enigma2.git] / lib / dvb / pmt.cpp
index 541a248c2e2feee0bcd6f30a538c7071ea1121d4..4ce35394ac1facb74c1211c9c8873fb41798bda7 100644 (file)
@@ -1,16 +1,30 @@
- #include <lib/base/eerror.h>
+#include <lib/base/eerror.h>
 #include <lib/dvb/pmt.h>
 #include <lib/dvb/specs.h>
 #include <lib/dvb/dvb.h>
 #include <lib/dvb/metaparser.h>
+#include <lib/dvb_ci/dvbci.h>
+#include <lib/dvb/epgcache.h>
+#include <dvbsi++/ca_program_map_section.h>
+#include <dvbsi++/teletext_descriptor.h>
+#include <dvbsi++/descriptor_tag.h>
+#include <dvbsi++/iso639_language_descriptor.h>
+#include <dvbsi++/stream_identifier_descriptor.h>
 
 eDVBServicePMTHandler::eDVBServicePMTHandler()
+       :m_ca_servicePtr(0), m_decode_demux_num(0xFF)
 {
+       m_use_decode_demux = 0;
        eDVBResourceManager::getInstance(m_resourceManager);
        CONNECT(m_PMT.tableReady, eDVBServicePMTHandler::PMTready);
        CONNECT(m_PAT.tableReady, eDVBServicePMTHandler::PATready);
 }
 
+eDVBServicePMTHandler::~eDVBServicePMTHandler()
+{
+       free();
+}
+
 void eDVBServicePMTHandler::channelStateChanged(iDVBChannel *channel)
 {
        int state;
@@ -20,8 +34,8 @@ void eDVBServicePMTHandler::channelStateChanged(iDVBChannel *channel)
                && (state == iDVBChannel::state_ok) && (!m_demux))
        {
                if (m_channel)
-                       if (m_channel->getDemux(m_demux))
-                               eDebug("shit it failed.. again.");
+                       if (m_channel->getDemux(m_demux, (!m_use_decode_demux) ? 0 : iDVBChannel::capDecode))
+                               eDebug("Allocating a demux for now tuned-in channel failed.");
                
                serviceEvent(eventTuned);
                
@@ -29,13 +43,31 @@ void eDVBServicePMTHandler::channelStateChanged(iDVBChannel *channel)
                {
                        eDebug("ok ... now we start!!");
 
-                       /* emit */ m_resourceManager->m_channelRunning(channel);
-
                        m_PAT.begin(eApp, eDVBPATSpec(), m_demux);
 
                        if ( m_service && !m_service->cacheEmpty() )
                                serviceEvent(eventNewProgramInfo);
                }
+       } else if ((m_last_channel_state != iDVBChannel::state_failed) && 
+                       (state == iDVBChannel::state_failed))
+       {
+               eDebug("tune failed.");
+               serviceEvent(eventTuneFailed);
+       }
+}
+
+void eDVBServicePMTHandler::channelEvent(iDVBChannel *channel, int event)
+{
+       switch (event)
+       {
+       case iDVBChannel::evtEOF:
+               serviceEvent(eventEOF);
+               break;
+       case iDVBChannel::evtSOF:
+               serviceEvent(eventSOF);
+               break;
+       default:
+               break;
        }
 }
 
@@ -44,25 +76,130 @@ void eDVBServicePMTHandler::PMTready(int error)
        if (error)
                serviceEvent(eventNoPMT);
        else
+       {
                serviceEvent(eventNewProgramInfo);
+               eEPGCache::getInstance()->PMTready(this);
+               if (!m_pvr_channel)
+               {
+                       if(!m_ca_servicePtr)   // don't send campmt to camd.socket for playbacked services
+                       {
+                               int demuxes[2] = {0,0};
+                               uint8_t tmp;
+                               m_demux->getCADemuxID(tmp);
+                               demuxes[0]=tmp;
+                               if (m_decode_demux_num != 0xFF)
+                                       demuxes[1]=m_decode_demux_num;
+                               else
+                                       demuxes[1]=demuxes[0];
+                               eDVBCAService::register_service(m_reference, demuxes, m_ca_servicePtr);
+                               eDVBCIInterfaces::getInstance()->addPMTHandler(this);
+                       }
+                       eDVBCIInterfaces::getInstance()->gotPMT(this);
+               }
+               if (m_ca_servicePtr)
+               {
+                       ePtr<eTable<ProgramMapSection> > ptr;
+                       if (!m_PMT.getCurrent(ptr))
+                               m_ca_servicePtr->buildCAPMT(ptr);
+                       else
+                               eDebug("eDVBServicePMTHandler cannot call buildCAPMT");
+               }
+       }
 }
 
 void eDVBServicePMTHandler::PATready(int)
 {
-       eDebug("got PAT");
-       ePtr<eTable<ProgramAssociationTable> > ptr;
+       ePtr<eTable<ProgramAssociationSection> > ptr;
        if (!m_PAT.getCurrent(ptr))
        {
                int pmtpid = -1;
-               ProgramAssociationTableConstIterator i;
+               std::vector<ProgramAssociationSection*>::const_iterator i;
                for (i = ptr->getSections().begin(); i != ptr->getSections().end(); ++i)
                {
-                       const ProgramAssociationTable &pat = **i;
+                       const ProgramAssociationSection &pat = **i;
                        ProgramAssociationConstIterator program;
                        for (program = pat.getPrograms()->begin(); program != pat.getPrograms()->end(); ++program)
                                if (eServiceID((*program)->getProgramNumber()) == m_reference.getServiceID())
                                        pmtpid = (*program)->getProgramMapPid();
                }
+               if (pmtpid == -1)
+               {
+                       if ( m_reference.path.find(".ts") != std::string::npos ) // recorded ts
+                       {
+                               // we try to find manual the correct sid
+                               int fd = open( m_reference.path.c_str(), O_RDONLY|O_LARGEFILE );
+                               if ( fd < 0 )
+                                       eDebug("open %s failed");
+                               else
+                               {
+                                       eDebug("parse ts file for find the correct pmtpid");
+                                       unsigned char *buf = new unsigned char[256*1024]; // 256 kbyte
+                                       int rd=0;
+                                       while ( pmtpid == -1 && (rd < 1024*1024*5) )
+                                       {
+#define MAX_PIDS 64
+                                               int pids[MAX_PIDS];
+                                               int pididx=-1;
+                                               int r = ::read( fd, buf, 256*1024 );
+                                               if ( r <= 0 )
+                                                       break;
+                                               rd+=r;
+                                               int cnt=0;
+                                               while(cnt < r)
+                                               {
+                                                       while ( (buf[cnt] != 0x47) && ((cnt+188) < r) && (buf[cnt+188] != 0x47) )
+                                                       {
+//                                                             eDebug("search sync byte %02x %02x, %d %d", buf[cnt], buf[cnt+188], cnt+188, r);
+                                                               cnt++;
+                                                       }
+                                                       if ( buf[cnt] == 0x47 )
+                                                       {
+                                                               int pid = ((buf[cnt+1]&0x3F) << 8) | buf[cnt+2];
+                                                               int idx=0;
+                                                               while(idx <= pididx)  // check if we already have this pid
+                                                               {
+                                                                       if ( pids[idx] == pid )
+                                                                               break;
+                                                                       ++idx;
+                                                               }
+                                                               if (idx > pididx && (pididx+1) < MAX_PIDS)
+                                                               {
+                                                                       eDebug("found pid %04x", pid);
+                                                                       pids[++pididx]=pid;
+                                                               }
+                                                               cnt+=188;
+                                                       }
+                                                       else
+                                                               break;
+                                               }
+                                               while(pididx > -1 && pmtpid == -1)
+                                               {
+                                                       for (i = ptr->getSections().begin(); i != ptr->getSections().end() && pmtpid == -1; ++i)
+                                                       {
+                                                               const ProgramAssociationSection &pat = **i;
+                                                               ProgramAssociationConstIterator program;
+                                                               for (program = pat.getPrograms()->begin(); program != pat.getPrograms()->end(); ++program)
+                                                               {
+                                                                       int pid = (*program)->getProgramMapPid();
+                                                                       if ( pid == pids[pididx])
+                                                                       {
+                                                                               int sid = (*program)->getProgramNumber();
+                                                                               pmtpid = pid;
+                                                                               m_reference.setServiceID(eServiceID(sid));
+                                                                               eDebug("found pmt for service id %04x with pid %04x", sid, pid);
+                                                                               break;
+                                                                       }
+                                                               }
+                                                       }       
+                                                       --pididx;
+                                               }
+                                       }
+                                       delete [] buf;
+                                       close(fd);
+                               }
+                       }
+               }
+               
                if (pmtpid == -1)
                        serviceEvent(eventNoPATEntry);
                else
@@ -73,57 +210,152 @@ void eDVBServicePMTHandler::PATready(int)
 
 int eDVBServicePMTHandler::getProgramInfo(struct program &program)
 {
-       eDebug("got PMT");
-       ePtr<eTable<ProgramMapTable> > ptr;
+       ePtr<eTable<ProgramMapSection> > ptr;
 
        program.videoStreams.clear();
        program.audioStreams.clear();
        program.pcrPid = -1;
+       program.isCrypted = false;
+       program.pmtPid = -1;
+       program.textPid = -1;
 
        if (!m_PMT.getCurrent(ptr))
        {
-               ProgramMapTableConstIterator i;
+               int cached_apid_ac3 = -1;
+               int cached_apid_mpeg = -1;
+               int cached_vpid = -1;
+               int cached_tpid = -1;
+               if ( m_service && !m_service->cacheEmpty() )
+               {
+                       cached_vpid = m_service->getCachePID(eDVBService::cVPID);
+                       cached_apid_mpeg = m_service->getCachePID(eDVBService::cAC3PID);
+                       cached_apid_ac3 = m_service->getCachePID(eDVBService::cAPID);
+                       cached_tpid = m_service->getCachePID(eDVBService::cTPID);
+               }
+               eDVBTableSpec table_spec;
+               ptr->getSpec(table_spec);
+               program.pmtPid = table_spec.pid < 0x1fff ? table_spec.pid : -1;
+               std::vector<ProgramMapSection*>::const_iterator i;
                for (i = ptr->getSections().begin(); i != ptr->getSections().end(); ++i)
                {
-                       const ProgramMapTable &pmt = **i;
+                       const ProgramMapSection &pmt = **i;
                        program.pcrPid = pmt.getPcrPid();
                        
                        ElementaryStreamInfoConstIterator es;
                        for (es = pmt.getEsInfo()->begin(); es != pmt.getEsInfo()->end(); ++es)
                        {
-                               int isaudio = 0, isvideo = 0;
+                               int isaudio = 0, isvideo = 0, cadescriptors = 0;
                                videoStream video;
                                audioStream audio;
-                               
+                               audio.component_tag=-1;
+                               video.component_tag=-1;
+
                                video.pid = (*es)->getPid();
                                audio.pid = (*es)->getPid();
-                               
+
                                switch ((*es)->getType())
                                {
                                case 0x01: // MPEG 1 video
                                case 0x02: // MPEG 2 video
                                        isvideo = 1;
-                                       break;
+                                       //break; fall through !!!
                                case 0x03: // MPEG 1 audio
                                case 0x04: // MPEG 2 audio:
-                                       isaudio = 1;
-                                       audio.type = audioStream::atMPEG;
+                                       if (!isvideo)
+                                       {
+                                               isaudio = 1;
+                                               audio.type = audioStream::atMPEG;
+                                       }
+                                       //break; fall through !!!
+                               case 0x06: // PES Private
+                                               /* PES private can contain AC-3, DTS or lots of other stuff.
+                                                  check descriptors to get the exact type. */
+                                       for (DescriptorConstIterator desc = (*es)->getDescriptors()->begin();
+                                                       desc != (*es)->getDescriptors()->end(); ++desc)
+                                       {
+                                               switch ((*desc)->getTag())
+                                               {
+                                               case TELETEXT_DESCRIPTOR:
+                                                       if ( program.textPid == -1 || (*es)->getPid() == cached_tpid )
+                                                               program.textPid = (*es)->getPid();
+                                                       break;
+                                               case AC3_DESCRIPTOR:
+                                                       if (!isvideo)
+                                                       {
+                                                               isaudio = 1;
+                                                               audio.type = audioStream::atAC3;
+                                                       }
+                                                       break;
+                                               case ISO_639_LANGUAGE_DESCRIPTOR:
+                                                       if (!isvideo)
+                                                       {
+                                                               const Iso639LanguageList *languages = ((Iso639LanguageDescriptor*)*desc)->getIso639Languages();
+                                                                       /* use last language code */
+                                                               for (Iso639LanguageConstIterator i(languages->begin()); i != languages->end(); ++i)
+                                                                       audio.language_code = (*i)->getIso639LanguageCode();
+                                                       }
+                                                       break;
+                                               case STREAM_IDENTIFIER_DESCRIPTOR:
+                                                       audio.component_tag =
+                                                               video.component_tag =
+                                                                       ((StreamIdentifierDescriptor*)*desc)->getComponentTag();
+                                                       break;
+                                               case CA_DESCRIPTOR:
+                                                       ++cadescriptors;
+                                                       break;
+                                               }
+                                       }
                                        break;
                                }
                                if (isaudio)
-                                       program.audioStreams.push_back(audio);
-                               if (isvideo)
-                                       program.videoStreams.push_back(video);
+                               {
+                                       if ( !program.audioStreams.empty() &&
+                                               ( audio.pid == cached_apid_ac3 || audio.pid == cached_apid_mpeg) )
+                                       {
+                                               program.audioStreams.push_back(program.audioStreams[0]);
+                                               program.audioStreams[0] = audio;
+                                       }
+                                       else
+                                               program.audioStreams.push_back(audio);
+                               }
+                               else if (isvideo)
+                               {
+                                       if ( !program.videoStreams.empty() && video.pid == cached_vpid )
+                                       {
+                                               program.videoStreams.push_back(program.videoStreams[0]);
+                                               program.videoStreams[0] = video;
+                                       }
+                                       else
+                                               program.videoStreams.push_back(video);
+                               }
+                               else
+                                       continue;
+                               if ( cadescriptors > 0 )
+                                       program.isCrypted=true;
+                       }
+                       if ( !program.isCrypted )
+                       {
+                               for (DescriptorConstIterator desc = pmt.getDescriptors()->begin();
+                                       desc != pmt.getDescriptors()->end(); ++desc)
+                               {
+                                       switch ((*desc)->getTag())
+                                       {
+                                       case CA_DESCRIPTOR:
+                                               program.isCrypted=true;
+                                               break;
+                                       }
+                               }
+                               break;
                        }
                }
                return 0;
-       }
-       else if ( m_service && !m_service->cacheEmpty() )
+       } else if ( m_service && !m_service->cacheEmpty() )
        {
                int vpid = m_service->getCachePID(eDVBService::cVPID),
-                       apid_ac3 = m_service->getCachePID(eDVBService::cAPID),
-                       apid_mpeg = m_service->getCachePID(eDVBService::cAC3PID),
+                       apid_ac3 = m_service->getCachePID(eDVBService::cAC3PID),
+                       apid_mpeg = m_service->getCachePID(eDVBService::cAPID),
                        pcrpid = m_service->getCachePID(eDVBService::cPCRPID),
+                       tpid = m_service->getCachePID(eDVBService::cTPID),
                        cnt=0;
                if ( vpid != -1 )
                {
@@ -153,13 +385,27 @@ int eDVBServicePMTHandler::getProgramInfo(struct program &program)
                        ++cnt;
                        program.pcrPid = pcrpid;
                }
+               if ( tpid != -1 )
+               {
+                       ++cnt;
+                       program.textPid = tpid;
+               }
                if ( cnt )
                        return 0;
        }
        return -1;
 }
 
-int eDVBServicePMTHandler::getDemux(ePtr<iDVBDemux> &demux)
+int eDVBServicePMTHandler::getChannel(eUsePtr<iDVBChannel> &channel)
+{
+       channel = m_channel;
+       if (channel)
+               return 0;
+       else
+               return -1;
+}
+
+int eDVBServicePMTHandler::getDataDemux(ePtr<iDVBDemux> &demux)
 {
        demux = m_demux;
        if (demux)
@@ -168,12 +414,39 @@ int eDVBServicePMTHandler::getDemux(ePtr<iDVBDemux> &demux)
                return -1;
 }
 
-int eDVBServicePMTHandler::tune(eServiceReferenceDVB &ref)
+int eDVBServicePMTHandler::getDecodeDemux(ePtr<iDVBDemux> &demux)
+{
+       int ret=0;
+               /* if we're using the decoding demux as data source
+                  (for example in pvr playbacks), return that one. */
+       if (m_use_decode_demux)
+       {
+               demux = m_demux;
+               return ret;
+       }
+
+       ret = m_channel->getDemux(demux, iDVBChannel::capDecode);
+       if (!ret)
+               demux->getCADemuxID(m_decode_demux_num);
+
+       return ret;
+}
+
+int eDVBServicePMTHandler::getPVRChannel(ePtr<iDVBPVRChannel> &pvr_channel)
+{
+       pvr_channel = m_pvr_channel;
+       if (pvr_channel)
+               return 0;
+       else
+               return -1;
+}
+
+int eDVBServicePMTHandler::tune(eServiceReferenceDVB &ref, int use_decode_demux, eCueSheet *cue)
 {
        RESULT res;
        m_reference = ref;
        
-//     ref.path = "/viva.ts"; // hrhr.
+       m_use_decode_demux = use_decode_demux;
        
                /* is this a normal (non PVR) channel? */
        if (ref.path.empty())
@@ -181,6 +454,7 @@ int eDVBServicePMTHandler::tune(eServiceReferenceDVB &ref)
                eDVBChannelID chid;
                ref.getChannelID(chid);
                res = m_resourceManager->allocateChannel(chid, m_channel);
+               eDebug("allocate Channel: res %d", res);
        } else
        {
                eDVBMetaParser parser;
@@ -189,7 +463,9 @@ int eDVBServicePMTHandler::tune(eServiceReferenceDVB &ref)
                        eWarning("no .meta file found, trying original service ref.");
                else
                        m_reference = parser.m_ref;
-               
+
+//             eDebug("try %s", m_reference.toString().c_str());
+
                eDebug("alloc PVR");
                        /* allocate PVR */
                res = m_resourceManager->allocatePVRChannel(m_pvr_channel);
@@ -205,10 +481,21 @@ int eDVBServicePMTHandler::tune(eServiceReferenceDVB &ref)
                        m_channelStateChanged_connection);
                m_last_channel_state = -1;
                channelStateChanged(m_channel);
+
+               m_channel->connectEvent(
+                       slot(*this, &eDVBServicePMTHandler::channelEvent), 
+                       m_channelEvent_connection);
+       } else
+       {
+               serviceEvent(eventTuneFailed);
+               return res;
        }
 
        if (m_pvr_channel)
+       {
+               m_pvr_channel->setCueSheet(cue);
                m_pvr_channel->playFile(ref.path.c_str());
+       }
 
        ePtr<iDVBChannelList> db;
        if (!m_resourceManager->getChannelList(db))
@@ -216,3 +503,298 @@ int eDVBServicePMTHandler::tune(eServiceReferenceDVB &ref)
 
        return res;
 }
+
+void eDVBServicePMTHandler::free()
+{
+       if (m_ca_servicePtr)
+       {
+               int demuxes[2] = {0,0};
+               uint8_t tmp;
+               m_demux->getCADemuxID(tmp);
+               demuxes[0]=tmp;
+               if (m_decode_demux_num != 0xFF)
+                       demuxes[1]=m_decode_demux_num;
+               else
+                       demuxes[1]=demuxes[0];
+               ePtr<eTable<ProgramMapSection> > ptr;
+               m_PMT.getCurrent(ptr);
+               eDVBCAService::unregister_service(m_reference, demuxes, ptr);
+               eDVBCIInterfaces::getInstance()->removePMTHandler(this);
+               m_ca_servicePtr = 0;
+       }
+
+       if (m_pvr_channel)
+       {
+               m_pvr_channel->stopFile();
+               m_pvr_channel->setCueSheet(0);
+       }
+       m_PMT.stop();
+       m_PAT.stop();
+       m_service = 0;
+       m_channel = 0;
+       m_pvr_channel = 0;
+       m_demux = 0;
+}
+
+std::map<eServiceReferenceDVB, eDVBCAService*> eDVBCAService::exist;
+
+eDVBCAService::eDVBCAService()
+       :m_prev_build_hash(0), m_sendstate(0), m_retryTimer(eApp)
+{
+       memset(m_used_demux, 0xFF, sizeof(m_used_demux));
+       CONNECT(m_retryTimer.timeout, eDVBCAService::sendCAPMT);
+       Connect();
+}
+
+eDVBCAService::~eDVBCAService()
+{
+       eDebug("[eDVBCAService] free service %s", m_service.toString().c_str());
+       ::close(m_sock);
+}
+
+RESULT eDVBCAService::register_service( const eServiceReferenceDVB &ref, int demux_nums[2], eDVBCAService *&caservice )
+{
+       CAServiceMap::iterator it = exist.find(ref);
+       if ( it != exist.end() )
+               caservice = it->second;
+       else
+       {
+               caservice = (exist[ref]=new eDVBCAService());
+               caservice->m_service = ref;
+               eDebug("[eDVBCAService] new service %s", ref.toString().c_str() );
+       }
+
+       int loops = demux_nums[0] != demux_nums[1] ? 2 : 1;
+       for (int i=0; i < loops; ++i)
+       {
+// search free demux entry
+               int iter=0, max_demux_slots = sizeof(caservice->m_used_demux);
+
+               while ( iter < max_demux_slots && caservice->m_used_demux[iter] != 0xFF )
+                       ++iter;
+
+               if ( iter < max_demux_slots )
+               {
+                       caservice->m_used_demux[iter] = demux_nums[i] & 0xFF;
+                       eDebug("[eDVBCAService] add demux %d to slot %d service %s", caservice->m_used_demux[iter], iter, ref.toString().c_str());
+               }
+               else
+               {
+                       eDebug("[eDVBCAService] no more demux slots free for service %s!!", ref.toString().c_str());
+                       return -1;
+               }
+       }
+       return 0;
+}
+
+RESULT eDVBCAService::unregister_service( const eServiceReferenceDVB &ref, int demux_nums[2], eTable<ProgramMapSection> *ptr )
+{
+       CAServiceMap::iterator it = exist.find(ref);
+       if ( it == exist.end() )
+       {
+               eDebug("[eDVBCAService] try to unregister non registered %s", ref.toString().c_str());
+               return -1;
+       }
+       else
+       {
+               eDVBCAService *caservice = it->second;
+               int loops = demux_nums[0] != demux_nums[1] ? 2 : 1;
+               for (int i=0; i < loops; ++i)
+               {
+                       bool freed = false;
+                       int iter = 0,
+                               used_demux_slots = 0,
+                               max_demux_slots = sizeof(caservice->m_used_demux)/sizeof(int);
+                       while ( iter < max_demux_slots )
+                       {
+                               if ( caservice->m_used_demux[iter] != 0xFF )
+                               {
+                                       if ( !freed && caservice->m_used_demux[iter] == demux_nums[i] )
+                                       {
+                                               eDebug("[eDVBCAService] free slot %d demux %d for service %s", iter, caservice->m_used_demux[iter], caservice->m_service.toString().c_str() );
+                                               caservice->m_used_demux[iter] = 0xFF;
+                                               freed=true;
+                                       }
+                                       else
+                                               ++used_demux_slots;
+                               }
+                               ++iter;
+                       }
+                       if (!freed)
+                               eDebug("[eDVBCAService] couldn't free demux slot for demux %d", demux_nums[i]);
+                       if (i || loops == 1)
+                       {
+                               if (!used_demux_slots)  // no more used.. so we remove it
+                               {
+                                       delete it->second;
+                                       exist.erase(it);
+                               }
+                               else
+                               {
+                                       if (ptr)
+                                               it->second->buildCAPMT(ptr);
+                                       else
+                                               eDebug("[eDVBCAService] can not send updated demux info");
+                               }
+                       }
+               }
+       }
+       return 0;
+}
+
+void eDVBCAService::Connect()
+{
+       memset(&m_servaddr, 0, sizeof(struct sockaddr_un));
+       m_servaddr.sun_family = AF_UNIX;
+       strcpy(m_servaddr.sun_path, "/tmp/camd.socket");
+       m_clilen = sizeof(m_servaddr.sun_family) + strlen(m_servaddr.sun_path);
+       m_sock = socket(PF_UNIX, SOCK_STREAM, 0);
+       connect(m_sock, (struct sockaddr *) &m_servaddr, m_clilen);
+       fcntl(m_sock, F_SETFL, O_NONBLOCK);
+       int val=1;
+       setsockopt(m_sock, SOL_SOCKET, SO_REUSEADDR, &val, 4);
+}
+
+void eDVBCAService::buildCAPMT(eTable<ProgramMapSection> *ptr)
+{
+       if (!ptr)
+               return;
+
+       eDVBTableSpec table_spec;
+       ptr->getSpec(table_spec);
+
+       int pmtpid = table_spec.pid,
+               pmt_version = table_spec.version;
+
+       uint8_t demux_mask = 0;
+       int data_demux = -1;
+
+       int iter=0, max_demux_slots = sizeof(m_used_demux);
+       while ( iter < max_demux_slots )
+       {
+               if ( m_used_demux[iter] != 0xFF )
+               {
+                       if ( m_used_demux[iter] > data_demux )
+                               data_demux = m_used_demux[iter];
+                       demux_mask |= (1 << m_used_demux[iter]);
+               }
+               ++iter;
+       }
+
+       if ( data_demux == -1 )
+       {
+               eDebug("[eDVBCAService] no data demux found for service %s", m_service.toString().c_str() );
+               return;
+       }
+
+       eDebug("demux %d mask %02x prevhash %08x", data_demux, demux_mask, m_prev_build_hash);
+
+       unsigned int build_hash = (pmtpid << 16);
+       build_hash |= (demux_mask << 8);
+       build_hash |= (pmt_version&0xFF);
+
+       if ( build_hash == m_prev_build_hash )
+       {
+               eDebug("[eDVBCAService] don't build/send the same CA PMT twice");
+               return;
+       }
+
+       std::vector<ProgramMapSection*>::const_iterator i=ptr->getSections().begin();
+       if ( i != ptr->getSections().end() )
+       {
+               CaProgramMapSection capmt(*i++, m_prev_build_hash ? 0x05 /*update*/ : 0x03 /*only*/, 0x01 );
+
+               while( i != ptr->getSections().end() )
+               {
+//                     eDebug("append");
+                       capmt.append(*i++);
+               }
+
+               // add our private descriptors to capmt
+               uint8_t tmp[10];
+
+               tmp[0]=0x84;  // pmt pid
+               tmp[1]=0x02;
+               tmp[2]=pmtpid>>8;
+               tmp[3]=pmtpid&0xFF;
+               capmt.injectDescriptor(tmp, false);
+
+               tmp[0] = 0x82; // demux
+               tmp[1] = 0x02;
+               tmp[2] = demux_mask;    // descramble bitmask
+               tmp[3] = data_demux&0xFF; // read section data from demux number
+               capmt.injectDescriptor(tmp, false);
+
+               tmp[0] = 0x81; // dvbnamespace
+               tmp[1] = 0x08;
+               tmp[2] = m_service.getDVBNamespace().get()>>24;
+               tmp[3]=(m_service.getDVBNamespace().get()>>16)&0xFF;
+               tmp[4]=(m_service.getDVBNamespace().get()>>8)&0xFF;
+               tmp[5]=m_service.getDVBNamespace().get()&0xFF;
+               tmp[6]=m_service.getTransportStreamID().get()>>8;
+               tmp[7]=m_service.getTransportStreamID().get()&0xFF;
+               tmp[8]=m_service.getOriginalNetworkID().get()>>8;
+               tmp[9]=m_service.getOriginalNetworkID().get()&0xFF;
+               capmt.injectDescriptor(tmp, false);
+
+               capmt.writeToBuffer(m_capmt);
+       }
+
+       m_prev_build_hash = build_hash;
+
+       if ( m_sendstate != 0xFFFFFFFF )
+               m_sendstate=0;
+       sendCAPMT();
+}
+
+void eDVBCAService::sendCAPMT()
+{
+       if ( m_sendstate && m_sendstate != 0xFFFFFFFF ) // broken pipe retry
+       {
+               ::close(m_sock);
+               Connect();
+       }
+
+       int wp=0;
+       if ( m_capmt[3] & 0x80 )
+       {
+               int i=0;
+               int lenbytes = m_capmt[3] & ~0x80;
+               while(i < lenbytes)
+                       wp = (wp << 8) | m_capmt[4 + i++];
+               wp+=4;
+               wp+=lenbytes;
+       }
+       else
+       {
+               wp = m_capmt[3];
+               wp+=4;
+       }
+
+       if ( write(m_sock, m_capmt, wp) == wp )
+       {
+               m_sendstate=0xFFFFFFFF;
+               eDebug("[eDVBCAService] send %d bytes",wp);
+#if 1
+               for(int i=0;i<wp;i++)
+                       eDebugNoNewLine("%02x ", m_capmt[i]);
+               eDebug("");
+#endif
+       }
+       else
+       {
+               switch(m_sendstate)
+               {
+                       case 0xFFFFFFFF:
+                               ++m_sendstate;
+                               m_retryTimer.start(0,true);
+//                             eDebug("[eDVBCAService] send failed .. immediate retry");
+                               break;
+                       default:
+                               m_retryTimer.start(5000,true);
+//                             eDebug("[eDVBCAService] send failed .. retry in 5 sec");
+                               break;
+               }
+               ++m_sendstate;
+       }
+}