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