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
  12 class eStaticServiceMP3Info;
  13
  14 class eSubtitleWidget;
  15
  16 class eServiceFactoryMP3: public iServiceHandler
  17 {
  18         DECLARE_REF(eServiceFactoryMP3);
  19 public:
  20         eServiceFactoryMP3();
  21         virtual ~eServiceFactoryMP3();
  22         enum { id = 0x1001 };
  23
  24                 // iServiceHandler
  25         RESULT play(const eServiceReference &, ePtr<iPlayableService> &ptr);
  26         RESULT record(const eServiceReference &, ePtr<iRecordableService> &ptr);
  27         RESULT list(const eServiceReference &, ePtr<iListableService> &ptr);
  28         RESULT info(const eServiceReference &, ePtr<iStaticServiceInformation> &ptr);
  29         RESULT offlineOperations(const eServiceReference &, ePtr<iServiceOfflineOperations> &ptr);
  30 private:
  31         ePtr<eStaticServiceMP3Info> m_service_info;
  32 };
  33
  34 class eStaticServiceMP3Info: public iStaticServiceInformation
  35 {
  36         DECLARE_REF(eStaticServiceMP3Info);
  37         friend class eServiceFactoryMP3;
  38         eStaticServiceMP3Info();
  39 public:
  40         RESULT getName(const eServiceReference &ref, std::string &name);
  41         int getLength(const eServiceReference &ref);
  42 };
  43
  44 typedef struct _GstElement GstElement;
  45
  46 class eServiceMP3: public iPlayableService, public iPauseableService,
  47         public iServiceInformation, public iSeekableService, public iAudioTrackSelection, public iAudioChannelSelection, public iSubtitleOutput, public Object
  48 {
  49         DECLARE_REF(eServiceMP3);
  50 public:
  51         virtual ~eServiceMP3();
  52
  53                 // iPlayableService
  54         RESULT connectEvent(const Slot2<void,iPlayableService*,int> &event, ePtr<eConnection> &connection);
  55         RESULT start();
  56         RESULT stop();
  57         RESULT setTarget(int target);
  58
  59         RESULT pause(ePtr<iPauseableService> &ptr);
  60         RESULT setSlowMotion(int ratio);
  61         RESULT setFastForward(int ratio);
  62
  63         RESULT seek(ePtr<iSeekableService> &ptr);
  64         RESULT audioTracks(ePtr<iAudioTrackSelection> &ptr);
  65         RESULT audioChannel(ePtr<iAudioChannelSelection> &ptr);
  66         RESULT subtitle(ePtr<iSubtitleOutput> &ptr);
  67
  68                 // not implemented (yet)
  69         RESULT frontendInfo(ePtr<iFrontendInformation> &ptr) { ptr = 0; return -1; }
  70         RESULT subServices(ePtr<iSubserviceList> &ptr) { ptr = 0; return -1; }
  71         RESULT timeshift(ePtr<iTimeshiftService> &ptr) { ptr = 0; return -1; }
  72         RESULT cueSheet(ePtr<iCueSheet> &ptr) { ptr = 0; return -1; }
  73         RESULT audioDelay(ePtr<iAudioDelay> &ptr) { ptr = 0; return -1; }
  74         RESULT rdsDecoder(ePtr<iRdsDecoder> &ptr) { ptr = 0; return -1; }
  75         RESULT stream(ePtr<iStreamableService> &ptr) { ptr = 0; return -1; }
  76         RESULT keys(ePtr<iServiceKeys> &ptr) { ptr = 0; return -1; }
  77
  78                 // iPausableService
  79         RESULT pause();
  80         RESULT unpause();
  81
  82         RESULT info(ePtr<iServiceInformation>&);
  83
  84                 // iSeekableService
  85         RESULT getLength(pts_t &SWIG_OUTPUT);
  86         RESULT seekTo(pts_t to);
  87         RESULT seekRelative(int direction, pts_t to);
  88         RESULT getPlayPosition(pts_t &SWIG_OUTPUT);
  89         RESULT setTrickmode(int trick);
  90         RESULT isCurrentlySeekable();
  91
  92                 // iServiceInformation
  93         RESULT getName(std::string &name);
  94         int getInfo(int w);
  95         std::string getInfoString(int w);
  96
  97                 // iAudioTrackSelection
  98         int getNumberOfTracks();
  99         RESULT selectTrack(unsigned int i);
 100         RESULT getTrackInfo(struct iAudioTrackInfo &, unsigned int n);
 101         int getCurrentTrack();
 102
 103                 // iAudioChannelSelection
 104         int getCurrentChannel();
 105         RESULT selectChannel(int i);
 106
 107                 // iSubtitleOutput
 108         RESULT enableSubtitles(eWidget *parent, SWIG_PYOBJECT(ePyObject) entry);
 109         RESULT disableSubtitles(eWidget *parent);
 110         PyObject *getSubtitleList();
 111         PyObject *getCachedSubtitle();
 112
 113         struct audioStream
 114         {
 115                 GstPad* pad;
 116                 enum { atMP2, atMP3, atAC3, atDTS, atAAC, atPCM, atOGG };
 117                 int type; // mpeg2, ac3, dts, ...
 118                 std::string language_code; /* iso-639, if available. */
 119         };
 120         struct subtitleStream
 121         {
 122                 GstElement* element;
 123                 std::string language_code; /* iso-639, if available. */
 124         };
 125 private:
 126         int m_currentAudioStream;
 127         int m_currentSubtitleStream;
 128         int selectAudioStream(int i);
 129         std::vector<audioStream> m_audioStreams;
 130         std::vector<subtitleStream> m_subtitleStreams;
 131         eSubtitleWidget *m_subtitle_widget;
 132         int m_currentTrickRatio;
 133         eTimer m_seekTimeout;
 134         void eServiceMP3::seekTimeoutCB();
 135         friend class eServiceFactoryMP3;
 136         std::string m_filename;
 137         eServiceMP3(const char *filename);
 138         Signal2<void,iPlayableService*,int> m_event;
 139         enum
 140         {
 141                 stIdle, stRunning, stStopped,
 142         };
 143         int m_state;
 144         GstElement *m_gst_pipeline;
 145         GstTagList *m_stream_tags;
 146         eFixedMessagePump<int> m_pump;
 147
 148         void gstBusCall(GstBus *bus, GstMessage *msg);
 149         static GstBusSyncReply gstBusSyncHandler(GstBus *bus, GstMessage *message, gpointer user_data);
 150         static void gstCBpadAdded(GstElement *decodebin, GstPad *pad, gpointer data); /* for mpegdemux */
 151         static void gstCBfilterPadAdded(GstElement *filter, GstPad *pad, gpointer user_data); /* for id3demux */
 152         static void gstCBnewPad(GstElement *decodebin, GstPad *pad, gboolean last, gpointer data); /* for decodebin */
 153         static void gstCBunknownType(GstElement *decodebin, GstPad *pad, GstCaps *l, gpointer data);
 154         static void gstCBsubtitleAvail(GstElement *element, GstBuffer *buffer, GstPad *pad, gpointer user_data);
 155         void gstPoll(const int&);
 156 };
 157 #endif
 158
 159 #endif