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         int getInfo(const eServiceReference &ref, int w);
  45 };
  46
  47 typedef struct _GstElement GstElement;
  48
  49 typedef enum { atUnknown, atMPEG, atMP3, atAC3, atDTS, atAAC, atPCM, atOGG, atFLAC } audiotype_t;
  50 typedef enum { stUnknown, stPlainText, stSSA, stASS, stSRT, stVOB } subtype_t;
  51 typedef enum { ctNone, ctMPEGTS, ctMPEGPS, ctMKV, ctAVI, ctMP4, ctVCD, ctCDA } containertype_t;
  52
  53 struct SubtitlePage
  54 {
  55         ePangoSubtitlePage *pango_page;
  56         eVobSubtitlePage *vob_page;
  57 };
  58
  59 class eServiceMP3: public iPlayableService, public iPauseableService,
  60         public iServiceInformation, public iSeekableService, public iAudioTrackSelection, public iAudioChannelSelection,
  61         public iSubtitleOutput, public iStreamedService, public iAudioDelay, public Object
  62 {
  63         DECLARE_REF(eServiceMP3);
  64 public:
  65         virtual ~eServiceMP3();
  66
  67                 // iPlayableService
  68         RESULT connectEvent(const Slot2<void,iPlayableService*,int> &event, ePtr<eConnection> &connection);
  69         RESULT start();
  70         RESULT stop();
  71         RESULT setTarget(int target);
  72
  73         RESULT pause(ePtr<iPauseableService> &ptr);
  74         RESULT setSlowMotion(int ratio);
  75         RESULT setFastForward(int ratio);
  76
  77         RESULT seek(ePtr<iSeekableService> &ptr);
  78         RESULT audioTracks(ePtr<iAudioTrackSelection> &ptr);
  79         RESULT audioChannel(ePtr<iAudioChannelSelection> &ptr);
  80         RESULT subtitle(ePtr<iSubtitleOutput> &ptr);
  81         RESULT audioDelay(ePtr<iAudioDelay> &ptr);
  82
  83                 // not implemented (yet)
  84         RESULT frontendInfo(ePtr<iFrontendInformation> &ptr) { ptr = 0; return -1; }
  85         RESULT subServices(ePtr<iSubserviceList> &ptr) { ptr = 0; return -1; }
  86         RESULT timeshift(ePtr<iTimeshiftService> &ptr) { ptr = 0; return -1; }
  87         RESULT cueSheet(ePtr<iCueSheet> &ptr) { ptr = 0; return -1; }
  88
  89         RESULT rdsDecoder(ePtr<iRdsDecoder> &ptr) { ptr = 0; return -1; }
  90         RESULT keys(ePtr<iServiceKeys> &ptr) { ptr = 0; return -1; }
  91         RESULT stream(ePtr<iStreamableService> &ptr) { ptr = 0; return -1; }
  92
  93                 // iPausableService
  94         RESULT pause();
  95         RESULT unpause();
  96
  97         RESULT info(ePtr<iServiceInformation>&);
  98
  99                 // iSeekableService
 100         RESULT getLength(pts_t &SWIG_OUTPUT);
 101         RESULT seekTo(pts_t to);
 102         RESULT seekRelative(int direction, pts_t to);
 103         RESULT getPlayPosition(pts_t &SWIG_OUTPUT);
 104         RESULT setTrickmode(int trick);
 105         RESULT isCurrentlySeekable();
 106
 107                 // iServiceInformation
 108         RESULT getName(std::string &name);
 109         int getInfo(int w);
 110         std::string getInfoString(int w);
 111         PyObject *getInfoObject(int w);
 112
 113                 // iAudioTrackSelection
 114         int getNumberOfTracks();
 115         RESULT selectTrack(unsigned int i);
 116         RESULT getTrackInfo(struct iAudioTrackInfo &, unsigned int n);
 117         int getCurrentTrack();
 118
 119                 // iAudioChannelSelection
 120         int getCurrentChannel();
 121         RESULT selectChannel(int i);
 122
 123                 // iSubtitleOutput
 124         RESULT enableSubtitles(eWidget *parent, SWIG_PYOBJECT(ePyObject) entry);
 125         RESULT disableSubtitles(eWidget *parent);
 126         PyObject *getSubtitleList();
 127         PyObject *getCachedSubtitle();
 128
 129                 // iStreamedService
 130         RESULT streamed(ePtr<iStreamedService> &ptr);
 131         PyObject *getBufferCharge();
 132         int setBufferSize(int size);
 133
 134                 // iAudioDelay
 135         int getAC3Delay();
 136         int getPCMDelay();
 137         void setAC3Delay(int);
 138         void setPCMDelay(int);
 139
 140         struct audioStream
 141         {
 142                 GstPad* pad;
 143                 audiotype_t type;
 144                 std::string language_code; /* iso-639, if available. */
 145                 std::string codec; /* clear text codec description */
 146                 audioStream()
 147                         :pad(0), type(atUnknown)
 148                 {
 149                 }
 150         };
 151         struct subtitleStream
 152         {
 153                 GstPad* pad;
 154                 subtype_t type;
 155                 std::string language_code; /* iso-639, if available. */
 156                 subtitleStream()
 157                         :pad(0)
 158                 {
 159                 }
 160         };
 161         struct sourceStream
 162         {
 163                 audiotype_t audiotype;
 164                 containertype_t containertype;
 165                 bool is_video;
 166                 bool is_streaming;
 167                 sourceStream()
 168                         :audiotype(atUnknown), containertype(ctNone), is_video(FALSE), is_streaming(FALSE)
 169                 {
 170                 }
 171         };
 172         struct bufferInfo
 173         {
 174                 int bufferPercent;
 175                 int avgInRate;
 176                 int avgOutRate;
 177                 long long bufferingLeft;
 178                 bufferInfo()
 179                         :bufferPercent(0), avgInRate(0), avgOutRate(0), bufferingLeft(-1)
 180                 {
 181                 }
 182         };
 183 private:
 184         static int pcm_delay;
 185         static int ac3_delay;
 186         int m_currentAudioStream;
 187         int m_currentSubtitleStream;
 188         int selectAudioStream(int i);
 189         std::vector<audioStream> m_audioStreams;
 190         std::vector<subtitleStream> m_subtitleStreams;
 191         eSubtitleWidget *m_subtitle_widget;
 192         int m_currentTrickRatio;
 193         ePtr<eTimer> m_seekTimeout;
 194         void seekTimeoutCB();
 195         friend class eServiceFactoryMP3;
 196         eServiceReference m_ref;
 197         int m_buffer_size;
 198         bufferInfo m_bufferInfo;
 199         eServiceMP3(eServiceReference ref);
 200         Signal2<void,iPlayableService*,int> m_event;
 201         enum
 202         {
 203                 stIdle, stRunning, stStopped,
 204         };
 205         int m_state;
 206         GstElement *m_gst_playbin;
 207         GstElement *m_gst_subtitlebin;
 208         GstTagList *m_stream_tags;
 209         eFixedMessagePump<int> m_pump;
 210         std::string m_error_message;
 211
 212         audiotype_t gstCheckAudioPad(GstStructure* structure);
 213         void gstBusCall(GstBus *bus, GstMessage *msg);
 214         static GstBusSyncReply gstBusSyncHandler(GstBus *bus, GstMessage *message, gpointer user_data);
 215         static void gstCBsubtitleAvail(GstElement *element, gpointer user_data);
 216         static void gstCBsubtitleCAPS(GObject *obj, GParamSpec *pspec, gpointer user_data);
 217         static void gstCBsubtitleLink(subtype_t type, gpointer user_data);
 218         void gstPoll(const int&);
 219
 220         std::list<SubtitlePage> m_subtitle_pages;
 221         ePtr<eTimer> m_subtitle_sync_timer;
 222         ePtr<eTimer> m_subtitle_hide_timer;
 223         void pushSubtitles();
 224         void pullSubtitle();
 225         void hideSubtitles();
 226         int m_subs_to_pull;
 227         eSingleLock m_subs_to_pull_lock;
 228         gulong m_subs_to_pull_handler_id;
 229
 230         RESULT seekToImpl(pts_t to);
 231
 232         gint m_aspect, m_width, m_height, m_framerate, m_progressive;
 233         RESULT trickSeek(gdouble ratio);
 234 };
 235 #endif
 236
 237 #endif