lib/service/servicemp3.h

   1 #ifndef __servicemp3_h
   2 #define __servicemp3_h
   3
   4 #ifdef HAVE_GSTREAMER
   5 #include <lib/base/message.h>
   6 #include <lib/service/iservice.h>
   7 #include <lib/dvb/pmt.h>
   8 #include <lib/dvb/subtitle.h>
   9 #include <lib/dvb/teletext.h>
  10 #include <gst/gst.h>
  11 /* for subtitles */
  12 #include <lib/gui/esubtitle.h>
  13
  14 class eStaticServiceMP3Info;
  15
  16 class eSubtitleWidget;
  17
  18 class eServiceFactoryMP3: public iServiceHandler
  19 {
  20         DECLARE_REF(eServiceFactoryMP3);
  21 public:
  22         eServiceFactoryMP3();
  23         virtual ~eServiceFactoryMP3();
  24         enum { id = 0x1001 };
  25
  26                 // iServiceHandler
  27         RESULT play(const eServiceReference &, ePtr<iPlayableService> &ptr);
  28         RESULT record(const eServiceReference &, ePtr<iRecordableService> &ptr);
  29         RESULT list(const eServiceReference &, ePtr<iListableService> &ptr);
  30         RESULT info(const eServiceReference &, ePtr<iStaticServiceInformation> &ptr);
  31         RESULT offlineOperations(const eServiceReference &, ePtr<iServiceOfflineOperations> &ptr);
  32 private:
  33         ePtr<eStaticServiceMP3Info> m_service_info;
  34 };
  35
  36 class eStaticServiceMP3Info: public iStaticServiceInformation
  37 {
  38         DECLARE_REF(eStaticServiceMP3Info);
  39         friend class eServiceFactoryMP3;
  40         eStaticServiceMP3Info();
  41 public:
  42         RESULT getName(const eServiceReference &ref, std::string &name);
  43         int getLength(const eServiceReference &ref);
  44 };
  45
  46 typedef struct _GstElement GstElement;
  47
  48 typedef enum { atUnknown, atMPEG, atMP3, atAC3, atDTS, atAAC, atPCM, atOGG, atFLAC } audiotype_t;
  49 typedef enum { stPlainText, stSSA, stSRT } subtype_t;
  50 typedef enum { ctNone, ctMPEGTS, ctMPEGPS, ctMKV, ctAVI, ctMP4, ctVCD, ctCDA } containertype_t;
  51
  52 class eServiceMP3: public iPlayableService, public iPauseableService,
  53         public iServiceInformation, public iSeekableService, public iAudioTrackSelection, public iAudioChannelSelection, public iSubtitleOutput, public iStreamedService, public Object
  54 {
  55         DECLARE_REF(eServiceMP3);
  56 public:
  57         virtual ~eServiceMP3();
  58
  59                 // iPlayableService
  60         RESULT connectEvent(const Slot2<void,iPlayableService*,int> &event, ePtr<eConnection> &connection);
  61         RESULT start();
  62         RESULT stop();
  63         RESULT setTarget(int target);
  64
  65         RESULT pause(ePtr<iPauseableService> &ptr);
  66         RESULT setSlowMotion(int ratio);
  67         RESULT setFastForward(int ratio);
  68
  69         RESULT seek(ePtr<iSeekableService> &ptr);
  70         RESULT audioTracks(ePtr<iAudioTrackSelection> &ptr);
  71         RESULT audioChannel(ePtr<iAudioChannelSelection> &ptr);
  72         RESULT subtitle(ePtr<iSubtitleOutput> &ptr);
  73
  74                 // not implemented (yet)
  75         RESULT frontendInfo(ePtr<iFrontendInformation> &ptr) { ptr = 0; return -1; }
  76         RESULT subServices(ePtr<iSubserviceList> &ptr) { ptr = 0; return -1; }
  77         RESULT timeshift(ePtr<iTimeshiftService> &ptr) { ptr = 0; return -1; }
  78         RESULT cueSheet(ePtr<iCueSheet> &ptr) { ptr = 0; return -1; }
  79         RESULT audioDelay(ePtr<iAudioDelay> &ptr) { ptr = 0; return -1; }
  80         RESULT rdsDecoder(ePtr<iRdsDecoder> &ptr) { ptr = 0; return -1; }
  81         RESULT keys(ePtr<iServiceKeys> &ptr) { ptr = 0; return -1; }
  82         RESULT stream(ePtr<iStreamableService> &ptr) { ptr = 0; return -1; }
  83
  84                 // iPausableService
  85         RESULT pause();
  86         RESULT unpause();
  87
  88         RESULT info(ePtr<iServiceInformation>&);
  89
  90                 // iSeekableService
  91         RESULT getLength(pts_t &SWIG_OUTPUT);
  92         RESULT seekTo(pts_t to);
  93         RESULT seekRelative(int direction, pts_t to);
  94         RESULT getPlayPosition(pts_t &SWIG_OUTPUT);
  95         RESULT setTrickmode(int trick);
  96         RESULT isCurrentlySeekable();
  97
  98                 // iServiceInformation
  99         RESULT getName(std::string &name);
 100         int getInfo(int w);
 101         std::string getInfoString(int w);
 102         PyObject *getInfoObject(int w);
 103
 104                 // iAudioTrackSelection
 105         int getNumberOfTracks();
 106         RESULT selectTrack(unsigned int i);
 107         RESULT getTrackInfo(struct iAudioTrackInfo &, unsigned int n);
 108         int getCurrentTrack();
 109
 110                 // iAudioChannelSelection
 111         int getCurrentChannel();
 112         RESULT selectChannel(int i);
 113
 114                 // iSubtitleOutput
 115         RESULT enableSubtitles(eWidget *parent, SWIG_PYOBJECT(ePyObject) entry);
 116         RESULT disableSubtitles(eWidget *parent);
 117         PyObject *getSubtitleList();
 118         PyObject *getCachedSubtitle();
 119
 120                 // iStreamedService
 121         RESULT streamed(ePtr<iStreamedService> &ptr);
 122         PyObject *getBufferCharge();
 123         int setBufferSize(int size);
 124
 125         struct audioStream
 126         {
 127                 GstPad* pad;
 128                 audiotype_t type;
 129                 std::string language_code; /* iso-639, if available. */
 130                 std::string codec; /* clear text codec description */
 131                 audioStream()
 132                         :pad(0), type(atUnknown)
 133                 {
 134                 }
 135         };
 136         struct subtitleStream
 137         {
 138                 GstPad* pad;
 139                 subtype_t type;
 140                 std::string language_code; /* iso-639, if available. */
 141                 subtitleStream()
 142                         :pad(0)
 143                 {
 144                 }
 145         };
 146         struct sourceStream
 147         {
 148                 audiotype_t audiotype;
 149                 containertype_t containertype;
 150                 bool is_video;
 151                 bool is_streaming;
 152                 sourceStream()
 153                         :audiotype(atUnknown), containertype(ctNone), is_video(FALSE), is_streaming(FALSE)
 154                 {
 155                 }
 156         };
 157         struct bufferInfo
 158         {
 159                 int bufferPercent;
 160                 int avgInRate;
 161                 int avgOutRate;
 162                 long long bufferingLeft;
 163                 bufferInfo()
 164                         :bufferPercent(0), avgInRate(0), avgOutRate(0), bufferingLeft(-1)
 165                 {
 166                 }
 167         };
 168 private:
 169         int m_currentAudioStream;
 170         int m_currentSubtitleStream;
 171         int selectAudioStream(int i);
 172         std::vector<audioStream> m_audioStreams;
 173         std::vector<subtitleStream> m_subtitleStreams;
 174         eSubtitleWidget *m_subtitle_widget;
 175         int m_currentTrickRatio;
 176         ePtr<eTimer> m_seekTimeout;
 177         void seekTimeoutCB();
 178         friend class eServiceFactoryMP3;
 179         eServiceReference m_ref;
 180         int m_buffer_size;
 181         bufferInfo m_bufferInfo;
 182         eServiceMP3(eServiceReference ref);
 183         Signal2<void,iPlayableService*,int> m_event;
 184         enum
 185         {
 186                 stIdle, stRunning, stStopped,
 187         };
 188         int m_state;
 189         GstElement *m_gst_playbin;
 190         GstTagList *m_stream_tags;
 191         eFixedMessagePump<int> m_pump;
 192         std::string m_error_message;
 193
 194         audiotype_t gstCheckAudioPad(GstStructure* structure);
 195         void gstBusCall(GstBus *bus, GstMessage *msg);
 196         static GstBusSyncReply gstBusSyncHandler(GstBus *bus, GstMessage *message, gpointer user_data);
 197         static void gstCBsubtitleAvail(GstElement *element, gpointer user_data);
 198         GstPad* gstCreateSubtitleSink(eServiceMP3* _this, subtype_t type);
 199         void gstPoll(const int&);
 200
 201         std::list<ePangoSubtitlePage> m_subtitle_pages;
 202         ePtr<eTimer> m_subtitle_sync_timer;
 203         void pushSubtitles();
 204
 205         gint m_aspect, m_width, m_height, m_framerate, m_progressive;
 206         RESULT trickSeek(gdouble ratio);
 207 };
 208 #endif
 209
 210 #endif