code.vuplus.com Git - vuplus_dvbapp/blob - 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         Signal0<void> stateChanged;
  27         void closeFrontend()
  28         {
  29                 if (!m_inuse && m_frontend->closeFrontend()) // frontend busy
  30                         disable->start(60000, true);  // retry close in 60secs
  31         }
  32 public:
  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) = 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);
 124
 125         static int exist(int nr);
 126 private:
 127         int m_nr;
 128         eSmartPtrList<eDVBFrontend> m_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
 141         eSmartPtrList<eDVBRegisteredDemux> m_demux;
 142         eSmartPtrList<eDVBRegisteredFrontend> m_frontend;
 143
 144         void addAdapter(iDVBAdapter *adapter);
 145
 146                         /* allocates a frontend able to tune to frontend paramters 'feperm'.
 147                            the frontend must be tuned lateron. there is no guarante
 148                            that tuning will succeed - it just means that if this frontend
 149                            can't tune, no other frontend could do it.
 150
 151                            there might be a priority given to certain frontend/chid
 152                            combinations. this will be evaluated here. */
 153
 154         RESULT allocateFrontend(ePtr<eDVBAllocatedFrontend> &fe, ePtr<iDVBFrontendParameters> &feparm);
 155         RESULT allocateFrontendByIndex(ePtr<eDVBAllocatedFrontend> &fe, int slot_index);
 156
 157                         /* allocate a demux able to filter on the selected frontend. */
 158         RESULT allocateDemux(eDVBRegisteredFrontend *fe, ePtr<eDVBAllocatedDemux> &demux, int cap);
 159
 160         struct active_channel
 161         {
 162                 eDVBChannelID m_channel_id;
 163                         /* we don't hold a reference here. */
 164                 eDVBChannel *m_channel;
 165
 166                 active_channel(const eDVBChannelID &chid, eDVBChannel *ch) : m_channel_id(chid), m_channel(ch) { }
 167         };
 168
 169         std::list<active_channel> m_active_channels;
 170
 171         ePtr<iDVBChannelList> m_list;
 172         ePtr<iDVBSatelliteEquipmentControl> m_sec;
 173         static eDVBResourceManager *instance;
 174
 175         friend class eDVBChannel;
 176         RESULT addChannel(const eDVBChannelID &chid, eDVBChannel *ch);
 177         RESULT removeChannel(eDVBChannel *ch);
 178
 179         Signal1<void,eDVBChannel*> m_channelAdded;
 180
 181         int canAllocateFrontend(ePtr<iDVBFrontendParameters> &feparm);
 182
 183         eUsePtr<iDVBChannel> m_cached_channel;
 184         Connection m_cached_channel_state_changed_conn;
 185         eTimer m_releaseCachedChannelTimer;
 186         void DVBChannelStateChanged(iDVBChannel*);
 187         void feStateChanged();
 188 #ifndef SWIG
 189 public:
 190 #endif
 191         void releaseCachedChannel();
 192         eDVBResourceManager();
 193         virtual ~eDVBResourceManager();
 194
 195         RESULT setChannelList(iDVBChannelList *list);
 196         RESULT getChannelList(ePtr<iDVBChannelList> &list);
 197
 198         enum {
 199                         /* errNoFrontend = -1 replaced by more spcific messages */
 200                 errNoDemux    = -2,
 201                 errChidNotFound = -3,
 202                 errNoChannelList = -4,
 203                 errChannelNotInList = -5,
 204                 errAllSourcesBusy = -6,
 205                 errNoSourceFound = -7,
 206         };
 207
 208         RESULT connectChannelAdded(const Slot1<void,eDVBChannel*> &channelAdded, ePtr<eConnection> &connection);
 209         int canAllocateChannel(const eDVBChannelID &channelid, const eDVBChannelID &ignore);
 210
 211                 /* allocate channel... */
 212         RESULT allocateChannel(const eDVBChannelID &channelid, eUsePtr<iDVBChannel> &channel);
 213         RESULT allocatePVRChannel(eUsePtr<iDVBPVRChannel> &channel);
 214         static RESULT getInstance(ePtr<eDVBResourceManager> &);
 215 #ifdef SWIG
 216 public:
 217 #endif
 218         PSignal1<void,int> frontendUseMaskChanged;
 219         SWIG_VOID(RESULT) allocateRawChannel(eUsePtr<iDVBChannel> &SWIG_OUTPUT, int slot_index);
 220         PyObject *setFrontendSlotInformations(SWIG_PYOBJECT(ePyObject) list);
 221 };
 222 SWIG_TEMPLATE_TYPEDEF(ePtr<eDVBResourceManager>, eDVBResourceManager);
 223 SWIG_EXTEND(ePtr<eDVBResourceManager>,
 224         static ePtr<eDVBResourceManager> getInstance()
 225         {
 226                 extern ePtr<eDVBResourceManager> NewResourceManagerPtr(void);
 227                 return NewResourceManagerPtr();
 228         }
 229 );
 230
 231 #ifndef SWIG
 232
 233 class eDVBChannelFilePush;
 234
 235         /* iDVBPVRChannel includes iDVBChannel. don't panic. */
 236 class eDVBChannel: public iDVBPVRChannel, public iFilePushScatterGather, public Object
 237 {
 238         DECLARE_REF(eDVBChannel);
 239         friend class eDVBResourceManager;
 240 public:
 241         eDVBChannel(eDVBResourceManager *mgr, eDVBAllocatedFrontend *frontend);
 242         virtual ~eDVBChannel();
 243
 244                 /* only for managed channels - effectively tunes to the channelid. should not be used... */
 245                 /* cannot be used for PVR channels. */
 246         RESULT setChannel(const eDVBChannelID &id, ePtr<iDVBFrontendParameters> &feparam);
 247         eDVBChannelID getChannelID() { return m_channel_id; }
 248
 249         RESULT connectStateChange(const Slot1<void,iDVBChannel*> &stateChange, ePtr<eConnection> &connection);
 250         RESULT connectEvent(const Slot2<void,iDVBChannel*,int> &eventChange, ePtr<eConnection> &connection);
 251
 252         RESULT getState(int &state);
 253
 254         RESULT setCIRouting(const eDVBCIRouting &routing);
 255         RESULT getDemux(ePtr<iDVBDemux> &demux, int cap);
 256         RESULT getFrontend(ePtr<iDVBFrontend> &frontend);
 257         RESULT getCurrentFrontendParameters(ePtr<iDVBFrontendParameters> &param);
 258
 259                 /* iDVBPVRChannel */
 260         RESULT playFile(const char *file);
 261         void stopFile();
 262
 263         void setCueSheet(eCueSheet *cuesheet);
 264
 265         RESULT getLength(pts_t &len);
 266         RESULT getCurrentPosition(iDVBDemux *decoding_demux, pts_t &pos, int mode);
 267
 268         int getUseCount() { return m_use_count; }
 269 private:
 270         ePtr<eDVBAllocatedFrontend> m_frontend;
 271         ePtr<eDVBAllocatedDemux> m_demux, m_decoder_demux;
 272
 273         ePtr<iDVBFrontendParameters> m_current_frontend_parameters;
 274         eDVBChannelID m_channel_id;
 275         Signal1<void,iDVBChannel*> m_stateChanged;
 276         Signal2<void,iDVBChannel*,int> m_event;
 277         int m_state;
 278
 279                         /* for channel list */
 280         ePtr<eDVBResourceManager> m_mgr;
 281
 282         void frontendStateChanged(iDVBFrontend*fe);
 283         ePtr<eConnection> m_conn_frontendStateChanged;
 284
 285                 /* for PVR playback */
 286         eDVBChannelFilePush *m_pvr_thread;
 287         void pvrEvent(int event);
 288
 289         int m_pvr_fd_dst;
 290         eDVBTSTools m_tstools;
 291
 292         ePtr<eCueSheet> m_cue;
 293
 294         void cueSheetEvent(int event);
 295         ePtr<eConnection> m_conn_cueSheetEvent;
 296         int m_skipmode_m, m_skipmode_n;
 297
 298         std::list<std::pair<off_t, off_t> > m_source_span;
 299         void getNextSourceSpan(off_t current_offset, size_t bytes_read, off_t &start, size_t &size);
 300         void flushPVR(iDVBDemux *decoding_demux=0);
 301
 302         eSingleLock m_cuesheet_lock;
 303
 304         friend class eUsePtr<eDVBChannel>;
 305                 /* use count */
 306         oRefCount m_use_count;
 307         void AddUse();
 308         void ReleaseUse();
 309 };
 310 #endif // SWIG
 311
 312 #endif