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,
  54         public iSubtitleOutput, public iStreamedService, public iAudioDelay, public Object
  55 {
  56         DECLARE_REF(eServiceMP3);
  57 public:
  58         virtual ~eServiceMP3();
  59
  60                 // iPlayableService
  61         RESULT connectEvent(const Slot2<void,iPlayableService*,int> &event, ePtr<eConnection> &connection);
  62         RESULT start();
  63         RESULT stop();
  64         RESULT setTarget(int target);
  65
  66         RESULT pause(ePtr<iPauseableService> &ptr);
  67         RESULT setSlowMotion(int ratio);
  68         RESULT setFastForward(int ratio);
  69
  70         RESULT seek(ePtr<iSeekableService> &ptr);
  71         RESULT audioTracks(ePtr<iAudioTrackSelection> &ptr);
  72         RESULT audioChannel(ePtr<iAudioChannelSelection> &ptr);
  73         RESULT subtitle(ePtr<iSubtitleOutput> &ptr);
  74         RESULT audioDelay(ePtr<iAudioDelay> &ptr);
  75
  76                 // not implemented (yet)
  77         RESULT frontendInfo(ePtr<iFrontendInformation> &ptr) { ptr = 0; return -1; }
  78         RESULT subServices(ePtr<iSubserviceList> &ptr) { ptr = 0; return -1; }
  79         RESULT timeshift(ePtr<iTimeshiftService> &ptr) { ptr = 0; return -1; }
  80         RESULT cueSheet(ePtr<iCueSheet> &ptr) { ptr = 0; return -1; }
  81
  82         RESULT rdsDecoder(ePtr<iRdsDecoder> &ptr) { ptr = 0; return -1; }
  83         RESULT keys(ePtr<iServiceKeys> &ptr) { ptr = 0; return -1; }
  84         RESULT stream(ePtr<iStreamableService> &ptr) { ptr = 0; return -1; }
  85
  86                 // iPausableService
  87         RESULT pause();
  88         RESULT unpause();
  89
  90         RESULT info(ePtr<iServiceInformation>&);
  91
  92                 // iSeekableService
  93         RESULT getLength(pts_t &SWIG_OUTPUT);
  94         RESULT seekTo(pts_t to);
  95         RESULT seekRelative(int direction, pts_t to);
  96         RESULT getPlayPosition(pts_t &SWIG_OUTPUT);
  97         RESULT setTrickmode(int trick);
  98         RESULT isCurrentlySeekable();
  99
 100                 // iServiceInformation
 101         RESULT getName(std::string &name);
 102         int getInfo(int w);
 103         std::string getInfoString(int w);
 104         PyObject *getInfoObject(int w);
 105
 106                 // iAudioTrackSelection
 107         int getNumberOfTracks();
 108         RESULT selectTrack(unsigned int i);
 109         RESULT getTrackInfo(struct iAudioTrackInfo &, unsigned int n);
 110         int getCurrentTrack();
 111
 112                 // iAudioChannelSelection
 113         int getCurrentChannel();
 114         RESULT selectChannel(int i);
 115
 116                 // iSubtitleOutput
 117         RESULT enableSubtitles(eWidget *parent, SWIG_PYOBJECT(ePyObject) entry);
 118         RESULT disableSubtitles(eWidget *parent);
 119         PyObject *getSubtitleList();
 120         PyObject *getCachedSubtitle();
 121
 122                 // iStreamedService
 123         RESULT streamed(ePtr<iStreamedService> &ptr);
 124         PyObject *getBufferCharge();
 125         int setBufferSize(int size);
 126
 127                 // iAudioDelay
 128         int getAC3Delay();
 129         int getPCMDelay();
 130         void setAC3Delay(int);
 131         void setPCMDelay(int);
 132
 133         struct audioStream
 134         {
 135                 GstPad* pad;
 136                 audiotype_t type;
 137                 std::string language_code; /* iso-639, if available. */
 138                 std::string codec; /* clear text codec description */
 139                 audioStream()
 140                         :pad(0), type(atUnknown)
 141                 {
 142                 }
 143         };
 144         struct subtitleStream
 145         {
 146                 GstPad* pad;
 147                 subtype_t type;
 148                 std::string language_code; /* iso-639, if available. */
 149                 subtitleStream()
 150                         :pad(0)
 151                 {
 152                 }
 153         };
 154         struct sourceStream
 155         {
 156                 audiotype_t audiotype;
 157                 containertype_t containertype;
 158                 bool is_video;
 159                 bool is_streaming;
 160                 sourceStream()
 161                         :audiotype(atUnknown), containertype(ctNone), is_video(FALSE), is_streaming(FALSE)
 162                 {
 163                 }
 164         };
 165         struct bufferInfo
 166         {
 167                 int bufferPercent;
 168                 int avgInRate;
 169                 int avgOutRate;
 170                 long long bufferingLeft;
 171                 bufferInfo()
 172                         :bufferPercent(0), avgInRate(0), avgOutRate(0), bufferingLeft(-1)
 173                 {
 174                 }
 175         };
 176 private:
 177         static int pcm_delay;
 178         static int ac3_delay;
 179         int m_currentAudioStream;
 180         int m_currentSubtitleStream;
 181         int selectAudioStream(int i);
 182         std::vector<audioStream> m_audioStreams;
 183         std::vector<subtitleStream> m_subtitleStreams;
 184         eSubtitleWidget *m_subtitle_widget;
 185         int m_currentTrickRatio;
 186         ePtr<eTimer> m_seekTimeout;
 187         void seekTimeoutCB();
 188         friend class eServiceFactoryMP3;
 189         eServiceReference m_ref;
 190         int m_buffer_size;
 191         bufferInfo m_bufferInfo;
 192         eServiceMP3(eServiceReference ref);
 193         Signal2<void,iPlayableService*,int> m_event;
 194         enum
 195         {
 196                 stIdle, stRunning, stStopped,
 197         };
 198         int m_state;
 199         GstElement *m_gst_playbin;
 200         GstTagList *m_stream_tags;
 201         eFixedMessagePump<int> m_pump;
 202         std::string m_error_message;
 203
 204         audiotype_t gstCheckAudioPad(GstStructure* structure);
 205         void gstBusCall(GstBus *bus, GstMessage *msg);
 206         static GstBusSyncReply gstBusSyncHandler(GstBus *bus, GstMessage *message, gpointer user_data);
 207         static void gstCBsubtitleAvail(GstElement *element, gpointer user_data);
 208         GstPad* gstCreateSubtitleSink(eServiceMP3* _this, subtype_t type);
 209         void gstPoll(const int&);
 210
 211         std::list<ePangoSubtitlePage> m_subtitle_pages;
 212         ePtr<eTimer> m_subtitle_sync_timer;
 213         void pushSubtitles();
 214         void pullSubtitle();
 215         int m_subs_to_pull;
 216         eSingleLock m_subs_to_pull_lock;
 217         gulong m_subs_to_pull_handler_id;
 218
 219         RESULT seekToImpl(pts_t to);
 220
 221         gint m_aspect, m_width, m_height, m_framerate, m_progressive;
 222         RESULT trickSeek(gdouble ratio);
 223 };
 224 #endif
 225
 226 #endif