lib/dvb/dvb.h

   1 #ifndef __dvb_dvb_h
   2 #define __dvb_dvb_h
   3
   4 #ifndef SWIG
   5
   6 #include <lib/base/ebase.h>
   7 #include <lib/base/filepush.h>
   8 #include <lib/base/elock.h>
   9 #include <lib/dvb/idvb.h>
  10 #include <lib/dvb/demux.h>
  11 #include <lib/dvb/frontend.h>
  12 #include <lib/dvb/tstools.h>
  13 #include <lib/dvb/esection.h>
  14 #include <connection.h>
  15
  16 #include <dvbsi++/service_description_section.h>
  17
  18 class eDVBChannel;
  19
  20         /* we do NOT handle resource conflicts here. instead, the allocateChannel
  21            fails, and the application has to see why the channel is allocated
  22            (and how to deallocate it). */
  23 class iDVBAdapter;
  24
  25 class eDVBRegisteredFrontend: public iObject, public Object
  26 {
  27         DECLARE_REF(eDVBRegisteredFrontend);
  28         ePtr<eTimer> disable;
  29         void closeFrontend()
  30         {
  31                 if (!m_inuse && m_frontend->closeFrontend()) // frontend busy
  32                         disable->start(60000, true);  // retry close in 60secs
  33         }
  34 public:
  35         Signal0<void> stateChanged;
  36         eDVBRegisteredFrontend(eDVBFrontend *fe, iDVBAdapter *adap)
  37                 :disable(eTimer::create(eApp)), m_adapter(adap), m_frontend(fe), m_inuse(0)
  38         {
  39                 CONNECT(disable->timeout, eDVBRegisteredFrontend::closeFrontend);
  40         }
  41         void dec_use()
  42         {
  43                 if (!--m_inuse)
  44                 {
  45                         /* emit */ stateChanged();
  46                         disable->start(3000, true);
  47                 }
  48         }
  49         void inc_use()
  50         {
  51                 if (++m_inuse == 1)
  52                 {
  53                         m_frontend->openFrontend();
  54                         /* emit */ stateChanged();
  55                 }
  56         }
  57         iDVBAdapter *m_adapter;
  58         ePtr<eDVBFrontend> m_frontend;
  59         int m_inuse;
  60 };
  61
  62 struct eDVBRegisteredDemux
  63 {
  64         DECLARE_REF(eDVBRegisteredDemux);
  65 public:
  66         iDVBAdapter *m_adapter;
  67         ePtr<eDVBDemux> m_demux;
  68         int m_inuse;
  69         eDVBRegisteredDemux(eDVBDemux *demux, iDVBAdapter *adap): m_adapter(adap), m_demux(demux), m_inuse(0) { }
  70 };
  71
  72 class eDVBAllocatedFrontend
  73 {
  74         DECLARE_REF(eDVBAllocatedFrontend);
  75 public:
  76
  77         eDVBAllocatedFrontend(eDVBRegisteredFrontend *fe);
  78         ~eDVBAllocatedFrontend();
  79         eDVBFrontend &get() { return *m_fe->m_frontend; }
  80         operator eDVBRegisteredFrontend*() { return m_fe; }
  81         operator eDVBFrontend*() { return m_fe->m_frontend; }
  82
  83 private:
  84         eDVBRegisteredFrontend *m_fe;
  85 };
  86
  87 class eDVBAllocatedDemux
  88 {
  89         DECLARE_REF(eDVBAllocatedDemux);
  90 public:
  91
  92         eDVBAllocatedDemux(eDVBRegisteredDemux *demux);
  93         ~eDVBAllocatedDemux();
  94         eDVBDemux &get() { return *m_demux->m_demux; }
  95         operator eDVBRegisteredDemux*() { return m_demux; }
  96         operator eDVBDemux*() { return m_demux->m_demux; }
  97
  98 private:
  99         eDVBRegisteredDemux *m_demux;
 100 };
 101
 102 class iDVBAdapter: public iObject
 103 {
 104 public:
 105         virtual int getNumDemux() = 0;
 106         virtual RESULT getDemux(ePtr<eDVBDemux> &demux, int nr) = 0;
 107
 108         virtual int getNumFrontends() = 0;
 109         virtual RESULT getFrontend(ePtr<eDVBFrontend> &fe, int nr, bool simulate=false) = 0;
 110 };
 111
 112 class eDVBAdapterLinux: public iDVBAdapter
 113 {
 114         DECLARE_REF(eDVBAdapterLinux);
 115 public:
 116         eDVBAdapterLinux(int nr);
 117
 118         int getNumDemux();
 119         RESULT getDemux(ePtr<eDVBDemux> &demux, int nr);
 120
 121         int getNumFrontends();
 122         RESULT getFrontend(ePtr<eDVBFrontend> &fe, int nr, bool simulate=false);
 123
 124         static int exist(int nr);
 125 private:
 126         int m_nr;
 127         eSmartPtrList<eDVBFrontend> m_frontend, m_simulate_frontend;
 128         eSmartPtrList<eDVBDemux>    m_demux;
 129 };
 130 #endif // SWIG
 131
 132 SWIG_IGNORE(eDVBResourceManager);
 133 class eDVBResourceManager: public iObject, public Object
 134 {
 135         DECLARE_REF(eDVBResourceManager);
 136         int avail, busy;
 137
 138         eSmartPtrList<iDVBAdapter> m_adapter;
 139         eSmartPtrList<eDVBRegisteredDemux> m_demux;
 140         eSmartPtrList<eDVBRegisteredFrontend> m_frontend, m_simulate_frontend;
 141         void addAdapter(iDVBAdapter *adapter);
 142
 143         struct active_channel
 144         {
 145                 eDVBChannelID m_channel_id;
 146                         /* we don't hold a reference here. */
 147                 eDVBChannel *m_channel;
 148
 149                 active_channel(const eDVBChannelID &chid, eDVBChannel *ch) : m_channel_id(chid), m_channel(ch) { }
 150         };
 151
 152         std::list<active_channel> m_active_channels, m_active_simulate_channels;
 153
 154         ePtr<iDVBChannelList> m_list;
 155         ePtr<iDVBSatelliteEquipmentControl> m_sec;
 156         static eDVBResourceManager *instance;
 157
 158         friend class eDVBChannel;
 159         RESULT addChannel(const eDVBChannelID &chid, eDVBChannel *ch);
 160         RESULT removeChannel(eDVBChannel *ch);
 161
 162         Signal1<void,eDVBChannel*> m_channelAdded;
 163
 164         eUsePtr<iDVBChannel> m_cached_channel;
 165         Connection m_cached_channel_state_changed_conn;
 166         ePtr<eTimer> m_releaseCachedChannelTimer;
 167         void DVBChannelStateChanged(iDVBChannel*);
 168         void feStateChanged();
 169 #ifndef SWIG
 170 public:
 171 #endif
 172         void releaseCachedChannel();
 173         eDVBResourceManager();
 174         virtual ~eDVBResourceManager();
 175
 176         RESULT setChannelList(iDVBChannelList *list);
 177         RESULT getChannelList(ePtr<iDVBChannelList> &list);
 178
 179         enum {
 180                         /* errNoFrontend = -1 replaced by more spcific messages */
 181                 errNoDemux    = -2,
 182                 errChidNotFound = -3,
 183                 errNoChannelList = -4,
 184                 errChannelNotInList = -5,
 185                 errAllSourcesBusy = -6,
 186                 errNoSourceFound = -7,
 187         };
 188
 189         RESULT connectChannelAdded(const Slot1<void,eDVBChannel*> &channelAdded, ePtr<eConnection> &connection);
 190         int canAllocateChannel(const eDVBChannelID &channelid, const eDVBChannelID &ignore, bool simulate=false);
 191
 192                 /* allocate channel... */
 193         RESULT allocateChannel(const eDVBChannelID &channelid, eUsePtr<iDVBChannel> &channel, bool simulate=false);
 194         RESULT allocatePVRChannel(eUsePtr<iDVBPVRChannel> &channel);
 195         static RESULT getInstance(ePtr<eDVBResourceManager> &);
 196
 197                         /* allocates a frontend able to tune to frontend paramters 'feperm'.
 198                            the frontend must be tuned lateron. there is no guarante
 199                            that tuning will succeed - it just means that if this frontend
 200                            can't tune, no other frontend could do it.
 201
 202                            there might be a priority given to certain frontend/chid
 203                            combinations. this will be evaluated here. */
 204         RESULT allocateFrontend(ePtr<eDVBAllocatedFrontend> &fe, ePtr<iDVBFrontendParameters> &feparm, bool simulate=false);
 205
 206         RESULT allocateFrontendByIndex(ePtr<eDVBAllocatedFrontend> &fe, int slot_index);
 207                         /* allocate a demux able to filter on the selected frontend. */
 208         RESULT allocateDemux(eDVBRegisteredFrontend *fe, ePtr<eDVBAllocatedDemux> &demux, int cap);
 209 #ifdef SWIG
 210 public:
 211 #endif
 212         int canAllocateFrontend(ePtr<iDVBFrontendParameters> &feparm, bool simulate=false);
 213         bool canMeasureFrontendInputPower();
 214         PSignal1<void,int> frontendUseMaskChanged;
 215         SWIG_VOID(RESULT) allocateRawChannel(eUsePtr<iDVBChannel> &SWIG_OUTPUT, int slot_index);
 216         PyObject *setFrontendSlotInformations(SWIG_PYOBJECT(ePyObject) list);
 217 };
 218 SWIG_TEMPLATE_TYPEDEF(ePtr<eDVBResourceManager>, eDVBResourceManager);
 219 SWIG_EXTEND(ePtr<eDVBResourceManager>,
 220         static ePtr<eDVBResourceManager> getInstance()
 221         {
 222                 extern ePtr<eDVBResourceManager> NewResourceManagerPtr(void);
 223                 return NewResourceManagerPtr();
 224         }
 225 );
 226
 227 #ifndef SWIG
 228
 229 class eDVBChannelFilePush;
 230
 231         /* iDVBPVRChannel includes iDVBChannel. don't panic. */
 232 class eDVBChannel: public iDVBPVRChannel, public iFilePushScatterGather, public Object
 233 {
 234         DECLARE_REF(eDVBChannel);
 235         friend class eDVBResourceManager;
 236 public:
 237         eDVBChannel(eDVBResourceManager *mgr, eDVBAllocatedFrontend *frontend);
 238         virtual ~eDVBChannel();
 239
 240                 /* only for managed channels - effectively tunes to the channelid. should not be used... */
 241                 /* cannot be used for PVR channels. */
 242         RESULT setChannel(const eDVBChannelID &id, ePtr<iDVBFrontendParameters> &feparam);
 243         eDVBChannelID getChannelID() { return m_channel_id; }
 244
 245         RESULT connectStateChange(const Slot1<void,iDVBChannel*> &stateChange, ePtr<eConnection> &connection);
 246         RESULT connectEvent(const Slot2<void,iDVBChannel*,int> &eventChange, ePtr<eConnection> &connection);
 247
 248         RESULT getState(int &state);
 249
 250         RESULT setCIRouting(const eDVBCIRouting &routing);
 251         RESULT getDemux(ePtr<iDVBDemux> &demux, int cap);
 252         RESULT getFrontend(ePtr<iDVBFrontend> &frontend);
 253         RESULT getCurrentFrontendParameters(ePtr<iDVBFrontendParameters> &param);
 254
 255                 /* iDVBPVRChannel */
 256         RESULT playFile(const char *file);
 257         void stopFile();
 258
 259         void setCueSheet(eCueSheet *cuesheet);
 260
 261         RESULT getLength(pts_t &len);
 262         RESULT getCurrentPosition(iDVBDemux *decoding_demux, pts_t &pos, int mode);
 263
 264         int getUseCount() { return m_use_count; }
 265
 266         RESULT requestTsidOnid(ePyObject callback);
 267 private:
 268         ePtr<eDVBAllocatedFrontend> m_frontend;
 269         ePtr<eDVBAllocatedDemux> m_demux, m_decoder_demux;
 270
 271         ePtr<iDVBFrontendParameters> m_current_frontend_parameters;
 272         eDVBChannelID m_channel_id;
 273         Signal1<void,iDVBChannel*> m_stateChanged;
 274         Signal2<void,iDVBChannel*,int> m_event;
 275         int m_state;
 276
 277                         /* for channel list */
 278         ePtr<eDVBResourceManager> m_mgr;
 279
 280         void frontendStateChanged(iDVBFrontend*fe);
 281         ePtr<eConnection> m_conn_frontendStateChanged;
 282
 283                 /* for PVR playback */
 284         eDVBChannelFilePush *m_pvr_thread;
 285         void pvrEvent(int event);
 286
 287         int m_pvr_fd_dst;
 288         eDVBTSTools m_tstools;
 289
 290         ePtr<eCueSheet> m_cue;
 291
 292         void cueSheetEvent(int event);
 293         ePtr<eConnection> m_conn_cueSheetEvent;
 294         int m_skipmode_m, m_skipmode_n, m_skipmode_frames, m_skipmode_frames_remainder;
 295
 296         std::list<std::pair<off_t, off_t> > m_source_span;
 297         void getNextSourceSpan(off_t current_offset, size_t bytes_read, off_t &start, size_t &size);
 298         void flushPVR(iDVBDemux *decoding_demux=0);
 299
 300         eSingleLock m_cuesheet_lock;
 301
 302         friend class eUsePtr<eDVBChannel>;
 303                 /* use count */
 304         oRefCount m_use_count;
 305         void AddUse();
 306         void ReleaseUse();
 307
 308                 /* for tsid/onid read */
 309         ePyObject m_tsid_onid_callback;
 310         ePtr<iDVBDemux> m_tsid_onid_demux;
 311         ePtr<eTable<ServiceDescriptionSection> > m_SDT;
 312         void SDTready(int err);
 313 };
 314 #endif // SWIG
 315
 316 #endif