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