code.vuplus.com Git - vuplus_dvbapp/blob - 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 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 stream(ePtr<iStreamableService> &ptr) { ptr = 0; return -1; }
  82         RESULT keys(ePtr<iServiceKeys> &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         struct audioStream
 121         {
 122                 GstPad* pad;
 123                 audiotype_t type;
 124                 std::string language_code; /* iso-639, if available. */
 125                 std::string codec; /* clear text codec description */
 126                 audioStream()
 127                         :pad(0), type(atUnknown)
 128                 {
 129                 }
 130         };
 131         struct subtitleStream
 132         {
 133                 GstPad* pad;
 134                 subtype_t type;
 135                 std::string language_code; /* iso-639, if available. */
 136                 subtitleStream()
 137                         :pad(0)
 138                 {
 139                 }
 140         };
 141         struct sourceStream
 142         {
 143                 audiotype_t audiotype;
 144                 containertype_t containertype;
 145                 bool is_video;
 146                 bool is_streaming;
 147                 sourceStream()
 148                         :audiotype(atUnknown), containertype(ctNone), is_video(FALSE), is_streaming(FALSE)
 149                 {
 150                 }
 151         };
 152 private:
 153         int m_currentAudioStream;
 154         int m_currentSubtitleStream;
 155         int selectAudioStream(int i);
 156         std::vector<audioStream> m_audioStreams;
 157         std::vector<subtitleStream> m_subtitleStreams;
 158         eSubtitleWidget *m_subtitle_widget;
 159         int m_currentTrickRatio;
 160         ePtr<eTimer> m_seekTimeout;
 161         void seekTimeoutCB();
 162         friend class eServiceFactoryMP3;
 163         std::string m_filename;
 164         std::string m_title;
 165         eServiceMP3(const char *filename, const char *title);
 166         Signal2<void,iPlayableService*,int> m_event;
 167         enum
 168         {
 169                 stIdle, stRunning, stStopped,
 170         };
 171         int m_state;
 172         GstElement *m_gst_playbin;
 173         GstTagList *m_stream_tags;
 174         eFixedMessagePump<int> m_pump;
 175         std::string m_error_message;
 176
 177         audiotype_t gstCheckAudioPad(GstStructure* structure);
 178         void gstBusCall(GstBus *bus, GstMessage *msg);
 179         static GstBusSyncReply gstBusSyncHandler(GstBus *bus, GstMessage *message, gpointer user_data);
 180         static void gstCBpadAdded(GstElement *decodebin, GstPad *pad, gpointer data); /* for mpegdemux */
 181         static void gstCBfilterPadAdded(GstElement *filter, GstPad *pad, gpointer user_data); /* for id3demux */
 182         static void gstCBnewPad(GstElement *decodebin, GstPad *pad, gboolean last, gpointer data); /* for decodebin */
 183         static void gstCBunknownType(GstElement *decodebin, GstPad *pad, GstCaps *l, gpointer data);
 184         static void gstCBsubtitleAvail(GstElement *element, gpointer user_data);
 185         static void gstCBsubtitlePadEvent(GstPad *pad, GstEvent *event, gpointer user_data);
 186         GstPad* gstCreateSubtitleSink(eServiceMP3* _this, subtype_t type);
 187         void gstPoll(const int&);
 188
 189         std::list<ePangoSubtitlePage> m_subtitle_pages;
 190         ePtr<eTimer> m_subtitle_sync_timer;
 191         void pushSubtitles();
 192
 193         gint m_aspect, m_width, m_height, m_framerate, m_progressive;
 194         RESULT trickSeek(gdouble ratio);
 195 };
 196 #endif
 197
 198 #endif