work on linked tuners ( can not test it :( )
[enigma2.git] / lib / dvb / dvb.cpp
index 90df726..9ddc29b 100644 (file)
@@ -9,6 +9,7 @@
 #include <sys/stat.h>
 #include <unistd.h>
 #include <fcntl.h>
+#include <sys/ioctl.h>
 
 DEFINE_REF(eDVBRegisteredFrontend);
 DEFINE_REF(eDVBRegisteredDemux);
@@ -45,7 +46,7 @@ eDVBResourceManager::eDVBResourceManager()
 {
        avail = 1;
        busy = 0;
-       m_sec = new eDVBSatelliteEquipmentControl;
+       m_sec = new eDVBSatelliteEquipmentControl(m_frontend);
        if (!instance)
                instance = this;
                
@@ -176,7 +177,6 @@ eDVBResourceManager::~eDVBResourceManager()
 {
        if (instance == this)
                instance = 0;
-
 }
 
 void eDVBResourceManager::addAdapter(iDVBAdapter *adapter)
@@ -197,32 +197,87 @@ void eDVBResourceManager::addAdapter(iDVBAdapter *adapter)
        for (i=0; i<num_fe; ++i)
        {
                ePtr<eDVBFrontend> frontend;
+
                if (!adapter->getFrontend(frontend, i))
+               {
+                       frontend->setTone(iDVBFrontend::toneOff);
+                       frontend->setVoltage(iDVBFrontend::voltageOff);
+                       frontend->setSEC(m_sec);
                        m_frontend.push_back(new eDVBRegisteredFrontend(frontend, adapter));
+               }
        }
 }
 
-RESULT eDVBResourceManager::allocateFrontend(const eDVBChannelID &chid, ePtr<eDVBAllocatedFrontend> &fe)
+RESULT eDVBResourceManager::allocateFrontend(ePtr<eDVBAllocatedFrontend> &fe, ePtr<iDVBFrontendParameters> &feparm)
 {
-               /* find first unused frontend. we ignore compatibility for now. */
+       ePtr<eDVBRegisteredFrontend> best;
+       int bestval = 0;
+
        for (eSmartPtrList<eDVBRegisteredFrontend>::iterator i(m_frontend.begin()); i != m_frontend.end(); ++i)
                if (!i->m_inuse)
                {
+                       int c = i->m_frontend->isCompatibleWith(feparm);
+                       if (c > bestval)
+                       {
+                               c = bestval;
+                               best = i;
+                       }
+               }
+
+       if (best)
+       {
+               fe = new eDVBAllocatedFrontend(best);
+               return 0;
+       }
+       
+       fe = 0;
+       
+       return -1;
+}
+
+RESULT eDVBResourceManager::allocateFrontendByIndex(ePtr<eDVBAllocatedFrontend> &fe, int nr)
+{
+       for (eSmartPtrList<eDVBRegisteredFrontend>::iterator i(m_frontend.begin()); i != m_frontend.end(); ++i, --nr)
+               if ((!nr) && !i->m_inuse)
+               {
                        fe = new eDVBAllocatedFrontend(i);
                        return 0;
                }
+       
+       fe = 0;
        return -1;
 }
 
-RESULT eDVBResourceManager::allocateDemux(eDVBRegisteredFrontend *fe, ePtr<eDVBAllocatedDemux> &demux)
+RESULT eDVBResourceManager::allocateDemux(eDVBRegisteredFrontend *fe, ePtr<eDVBAllocatedDemux> &demux, int cap)
 {
-               /* find first unused demux which is on same adapter as frontend (or any, if PVR) */
-       for (eSmartPtrList<eDVBRegisteredDemux>::iterator i(m_demux.begin()); i != m_demux.end(); ++i)
+               /* find first unused demux which is on same adapter as frontend (or any, if PVR)
+                  never use the first one unless we need a decoding demux. */
+
+       eDebug("allocate demux");
+       eSmartPtrList<eDVBRegisteredDemux>::iterator i(m_demux.begin());
+       
+       if (i == m_demux.end())
+               return -1;
+               
+       int n=0;
+               /* FIXME: hardware demux policy */
+       if (!(cap & iDVBChannel::capDecode))
+               ++i, ++n;
+       
+       for (; i != m_demux.end(); ++i, ++n)
                if ((!i->m_inuse) && ((!fe) || (i->m_adapter == fe->m_adapter)))
                {
+                       if ((cap & iDVBChannel::capDecode) && n)
+                               continue;
+                       
                        demux = new eDVBAllocatedDemux(i);
+                       if (fe)
+                               demux->get().setSourceFrontend(fe->m_frontend->getID());
+                       else
+                               demux->get().setSourcePVR(0);
                        return 0;
                }
+       eDebug("demux not found");
        return -1;
 }
 
@@ -258,29 +313,33 @@ RESULT eDVBResourceManager::allocateChannel(const eDVBChannelID &channelid, eUse
                }
        }
        
-               /* no currently available channel is tuned to this channelid. create a new one, if possible. */
-               
-               /* allocate a frontend. */
+       /* no currently available channel is tuned to this channelid. create a new one, if possible. */
+
+       if (!m_list)
+       {
+               eDebug("no channel list set!");
+               return -ENOENT;
+       }
+
+       ePtr<iDVBFrontendParameters> feparm;
+       if (m_list->getChannelFrontendData(channelid, feparm))
+       {
+               eDebug("channel not found!");
+               return -ENOENT;
+       }
+
+       /* allocate a frontend. */
        
        ePtr<eDVBAllocatedFrontend> fe;
        
-       if (allocateFrontend(channelid, fe))
+       if (allocateFrontend(fe, feparm))
                return errNoFrontend;
        
-       ePtr<eDVBAllocatedDemux> demux;
-       
-       if (allocateDemux(*fe, demux))
-               return errNoDemux;
-       
        RESULT res;
-       eDVBChannel *ch;
-       ch = new eDVBChannel(this, fe, demux);
+       ePtr<eDVBChannel> ch;
+       ch = new eDVBChannel(this, fe);
 
-       ePtr<iDVBFrontend> myfe;
-       if (!ch->getFrontend(myfe))
-               myfe->setSEC(m_sec);
-
-       res = ch->setChannel(channelid);
+       res = ch->setChannel(channelid, feparm);
        if (res)
        {
                channel = 0;
@@ -291,24 +350,15 @@ RESULT eDVBResourceManager::allocateChannel(const eDVBChannelID &channelid, eUse
        return 0;
 }
 
-RESULT eDVBResourceManager::allocateRawChannel(eUsePtr<iDVBChannel> &channel)
+RESULT eDVBResourceManager::allocateRawChannel(eUsePtr<iDVBChannel> &channel, int frontend_index)
 {
        ePtr<eDVBAllocatedFrontend> fe;
-       
-       if (allocateFrontend(eDVBChannelID(), fe))
+
+       if (allocateFrontendByIndex(fe, frontend_index))
                return errNoFrontend;
        
-       ePtr<eDVBAllocatedDemux> demux;
-       
-       if (allocateDemux(*fe, demux))
-               return errNoDemux;
-       
        eDVBChannel *ch;
-       ch = new eDVBChannel(this, fe, demux);
-
-       ePtr<iDVBFrontend> myfe;
-       if (!ch->getFrontend(myfe))
-               myfe->setSEC(m_sec);
+       ch = new eDVBChannel(this, fe);
 
        channel = ch;
        return 0;
@@ -319,11 +369,8 @@ RESULT eDVBResourceManager::allocatePVRChannel(eUsePtr<iDVBPVRChannel> &channel)
 {
        ePtr<eDVBAllocatedDemux> demux;
        
-       if (allocateDemux(0, demux))
-               return errNoDemux;
-       
        eDVBChannel *ch;
-       ch = new eDVBChannel(this, 0, demux);
+       ch = new eDVBChannel(this, 0);
        
        channel = ch;
        return 0;
@@ -331,7 +378,6 @@ RESULT eDVBResourceManager::allocatePVRChannel(eUsePtr<iDVBPVRChannel> &channel)
 
 RESULT eDVBResourceManager::addChannel(const eDVBChannelID &chid, eDVBChannel *ch)
 {
-       eDebug("add channel %p", ch);
        m_active_channels.push_back(active_channel(chid, ch));
        /* emit */ m_channelAdded(ch);
        return 0;
@@ -363,10 +409,9 @@ RESULT eDVBResourceManager::connectChannelAdded(const Slot1<void,eDVBChannel*> &
 
 DEFINE_REF(eDVBChannel);
 
-eDVBChannel::eDVBChannel(eDVBResourceManager *mgr, eDVBAllocatedFrontend *frontend, eDVBAllocatedDemux *demux): m_state(state_idle), m_mgr(mgr)
+eDVBChannel::eDVBChannel(eDVBResourceManager *mgr, eDVBAllocatedFrontend *frontend): m_state(state_idle), m_mgr(mgr)
 {
        m_frontend = frontend;
-       m_demux = demux;
 
        m_pvr_thread = 0;
        
@@ -390,7 +435,6 @@ eDVBChannel::~eDVBChannel()
 
 void eDVBChannel::frontendStateChanged(iDVBFrontend*fe)
 {
-       eDebug("fe state changed!");
        int state, ourstate = 0;
        
                /* if we are already in shutdown, don't change state. */
@@ -408,10 +452,14 @@ void eDVBChannel::frontendStateChanged(iDVBFrontend*fe)
        {
                eDebug("OURSTATE: tuning");
                ourstate = state_tuning;
-       } else if (state == iDVBFrontend::stateFailed)
+       } else if (state == iDVBFrontend::stateLostLock)
        {
-               eDebug("OURSTATE: failed/unavailable");
+               eDebug("OURSTATE: lost lock");
                ourstate = state_unavailable;
+       } else if (state == iDVBFrontend::stateFailed)
+       {
+               eDebug("OURSTATE: failed");
+               ourstate = state_failed;
        } else
                eFatal("state unknown");
        
@@ -436,7 +484,7 @@ void eDVBChannel::ReleaseUse()
        }
 }
 
-RESULT eDVBChannel::setChannel(const eDVBChannelID &channelid)
+RESULT eDVBChannel::setChannel(const eDVBChannelID &channelid, ePtr<iDVBFrontendParameters> &feparm)
 {
        if (m_channel_id)
                m_mgr->removeChannel(this);
@@ -444,25 +492,6 @@ RESULT eDVBChannel::setChannel(const eDVBChannelID &channelid)
        if (!channelid)
                return 0;
 
-       ePtr<iDVBChannelList> list;
-       
-       if (m_mgr->getChannelList(list))
-       {
-               eDebug("no channel list set!");
-               return -ENOENT;
-       }
-       
-       eDebug("tuning to chid: ns: %08x tsid %04x onid %04x",
-               channelid.dvbnamespace.get(), channelid.transport_stream_id.get(), channelid.original_network_id.get());
-
-       ePtr<iDVBFrontendParameters> feparm;
-       if (list->getChannelFrontendData(channelid, feparm))
-       {
-               eDebug("channel not found!");
-               return -ENOENT;
-       }
-       eDebug("allocateChannel: channel found..");
-       
        if (!m_frontend)
        {
                eDebug("no frontend to tune!");
@@ -472,7 +501,18 @@ RESULT eDVBChannel::setChannel(const eDVBChannelID &channelid)
        m_channel_id = channelid;
        m_mgr->addChannel(channelid, this);
        m_state = state_tuning;
-       return m_frontend->get().tune(*feparm);
+                       /* if tuning fails, shutdown the channel immediately. */
+       int res;
+       res = m_frontend->get().tune(*feparm);
+       
+       if (res)
+       {
+               m_state = state_release;
+               m_stateChanged(this);
+               return res;
+       }
+       
+       return 0;
 }
 
 RESULT eDVBChannel::connectStateChange(const Slot1<void,iDVBChannel*> &stateChange, ePtr<eConnection> &connection)
@@ -492,9 +532,25 @@ RESULT eDVBChannel::setCIRouting(const eDVBCIRouting &routing)
        return -1;
 }
 
-RESULT eDVBChannel::getDemux(ePtr<iDVBDemux> &demux)
+RESULT eDVBChannel::getDemux(ePtr<iDVBDemux> &demux, int cap)
 {
-       demux = &m_demux->get();
+       eDebug("get %d demux", cap);
+       ePtr<eDVBAllocatedDemux> &our_demux = (cap & capDecode) ? m_decoder_demux : m_demux;
+       
+       if (!our_demux)
+       {
+               demux = 0;
+               
+               if (m_mgr->allocateDemux(m_frontend ? (eDVBRegisteredFrontend*)*m_frontend : (eDVBRegisteredFrontend*)0, our_demux, cap))
+                       return -1;
+               
+       }
+       
+       demux = *our_demux;
+       if (cap & capDecode)
+       {
+               our_demux = 0;
+       }
        return 0;
 }
 
@@ -526,7 +582,7 @@ RESULT eDVBChannel::playFile(const char *file)
        m_pvr_fd_dst = open("/dev/misc/pvr", O_WRONLY);
        if (m_pvr_fd_dst < 0)
        {
-               eDebug("can't open /dev/misc/pvr - you need to buy the new(!) $$$ box! (%m)");
+               eDebug("can't open /dev/misc/pvr - you need to buy the new(!) $$$ box! (%m)"); // or wait for the driver to be improved.
                return -ENODEV;
        }
        
@@ -543,6 +599,8 @@ RESULT eDVBChannel::playFile(const char *file)
        
        m_pvr_thread = new eFilePushThread();
        m_pvr_thread->start(m_pvr_fd_src, m_pvr_fd_dst);
+
+       return 0;
 }
 
 RESULT eDVBChannel::getLength(pts_t &len)
@@ -550,8 +608,11 @@ RESULT eDVBChannel::getLength(pts_t &len)
        return m_tstools.calcLen(len);
 }
 
-RESULT eDVBChannel::getCurrentPosition(pts_t &pos)
+RESULT eDVBChannel::getCurrentPosition(iDVBDemux *decoding_demux, pts_t &pos)
 {
+       if (!decoding_demux)
+               return -1;
+       
        off_t begin = 0;
                /* getPTS for offset 0 is cached, so it doesn't harm. */
        int r = m_tstools.getPTS(begin, pos);
@@ -563,7 +624,7 @@ RESULT eDVBChannel::getCurrentPosition(pts_t &pos)
        
        pts_t now;
        
-       r = m_demux->get().getSTC(now);
+       r = decoding_demux->getSTC(now);
 
        if (r)
        {
@@ -587,3 +648,61 @@ RESULT eDVBChannel::getCurrentPosition(pts_t &pos)
        
        return 0;
 }
+
+RESULT eDVBChannel::seekTo(iDVBDemux *decoding_demux, int relative, pts_t &pts)
+{
+       int bitrate = m_tstools.calcBitrate(); /* in bits/s */
+       
+       if (bitrate == -1)
+               return -1;
+       
+       if (relative)
+       {
+               pts_t now;
+               if (getCurrentPosition(decoding_demux, now))
+               {
+                       eDebug("seekTo: getCurrentPosition failed!");
+                       return -1;
+               }
+               pts += now;
+       }
+       
+       if (pts < 0)
+               pts = 0;
+       
+       off_t offset = (pts * (pts_t)bitrate) / 8ULL / 90000ULL;
+       
+       seekToPosition(decoding_demux, offset);
+       return 0;
+}
+
+RESULT eDVBChannel::seekToPosition(iDVBDemux *decoding_demux, const off_t &r)
+{
+                       /* when seeking, we have to ensure that all buffers are flushed.
+                          there are basically 3 buffers:
+                          a.) the filepush's internal buffer
+                          b.) the PVR buffer (before demux)
+                          c.) the ratebuffer (after demux)
+                          
+                          it's important to clear them in the correct order, otherwise
+                          the ratebuffer (for example) would immediately refill from
+                          the not-yet-flushed PVR buffer.
+                       */
+       eDebug("eDVBChannel: seekToPosition .. %llx", r);
+       m_pvr_thread->pause();
+
+               /* flush internal filepush buffer */
+       m_pvr_thread->flush();
+
+               /* HACK: flush PVR buffer */
+       ::ioctl(m_pvr_fd_dst, 0);
+       
+               /* flush ratebuffers (video, audio) */
+       if (decoding_demux)
+               decoding_demux->flush();
+
+               /* demux will also flush all decoder.. */
+       m_pvr_thread->seek(SEEK_SET, r);
+       m_pvr_thread->resume();
+       return 0;
+}