code.vuplus.com Git - vuplus_dvbapp/blob - lib/service/servicemp3.h

   1 #ifndef __servicemp3_h
   2 #define __servicemp3_h
   3
   4 #include <lib/base/message.h>
   5 #include <lib/service/iservice.h>
   6 #include <lib/dvb/pmt.h>
   7 #include <lib/dvb/subtitle.h>
   8 #include <lib/dvb/teletext.h>
   9 #include <gst/gst.h>
  10 /* for subtitles */
  11 #include <lib/gui/esubtitle.h>
  12
  13 class eStaticServiceMP3Info;
  14
  15 class eSubtitleWidget;
  16
  17 class eServiceFactoryMP3: public iServiceHandler
  18 {
  19         DECLARE_REF(eServiceFactoryMP3);
  20 public:
  21         eServiceFactoryMP3();
  22         virtual ~eServiceFactoryMP3();
  23         enum { id = 0x1001 };
  24
  25                 // iServiceHandler
  26         RESULT play(const eServiceReference &, ePtr<iPlayableService> &ptr);
  27         RESULT record(const eServiceReference &, ePtr<iRecordableService> &ptr);
  28         RESULT list(const eServiceReference &, ePtr<iListableService> &ptr);
  29         RESULT info(const eServiceReference &, ePtr<iStaticServiceInformation> &ptr);
  30         RESULT offlineOperations(const eServiceReference &, ePtr<iServiceOfflineOperations> &ptr);
  31 private:
  32         ePtr<eStaticServiceMP3Info> m_service_info;
  33 };
  34
  35 class eStaticServiceMP3Info: public iStaticServiceInformation
  36 {
  37         DECLARE_REF(eStaticServiceMP3Info);
  38         friend class eServiceFactoryMP3;
  39         eStaticServiceMP3Info();
  40 public:
  41         RESULT getName(const eServiceReference &ref, std::string &name);
  42         int getLength(const eServiceReference &ref);
  43         int getInfo(const eServiceReference &ref, int w);
  44         int isPlayable(const eServiceReference &ref, const eServiceReference &ignore, bool simulate) { return 1; }
  45         RESULT getEvent(const eServiceReference &ref, ePtr<eServiceEvent> &ptr, time_t start_time);
  46 };
  47
  48 typedef struct _GstElement GstElement;
  49
  50 typedef enum { atUnknown, atMPEG, atMP3, atAC3, atDTS, atAAC, atPCM, atOGG, atFLAC } audiotype_t;
  51 typedef enum { stUnknown, stPlainText, stSSA, stASS, stSRT, stVOB, stPGS } subtype_t;
  52 typedef enum { ctNone, ctMPEGTS, ctMPEGPS, ctMKV, ctAVI, ctMP4, ctVCD, ctCDA } containertype_t;
  53
  54 class eServiceMP3: public iPlayableService, public iPauseableService,
  55         public iServiceInformation, public iSeekableService, public iAudioTrackSelection, public iAudioChannelSelection,
  56         public iSubtitleOutput, public iStreamedService, public iAudioDelay, public Object
  57 {
  58         DECLARE_REF(eServiceMP3);
  59 public:
  60         virtual ~eServiceMP3();
  61
  62                 // iPlayableService
  63         RESULT connectEvent(const Slot2<void,iPlayableService*,int> &event, ePtr<eConnection> &connection);
  64         RESULT start();
  65         RESULT stop();
  66         RESULT setTarget(int target);
  67
  68         RESULT pause(ePtr<iPauseableService> &ptr);
  69         RESULT setSlowMotion(int ratio);
  70         RESULT setFastForward(int ratio);
  71
  72         RESULT seek(ePtr<iSeekableService> &ptr);
  73         RESULT audioTracks(ePtr<iAudioTrackSelection> &ptr);
  74         RESULT audioChannel(ePtr<iAudioChannelSelection> &ptr);
  75         RESULT subtitle(ePtr<iSubtitleOutput> &ptr);
  76         RESULT audioDelay(ePtr<iAudioDelay> &ptr);
  77
  78                 // not implemented (yet)
  79         RESULT frontendInfo(ePtr<iFrontendInformation> &ptr) { ptr = 0; return -1; }
  80         RESULT subServices(ePtr<iSubserviceList> &ptr) { ptr = 0; return -1; }
  81         RESULT timeshift(ePtr<iTimeshiftService> &ptr) { ptr = 0; return -1; }
  82         RESULT cueSheet(ePtr<iCueSheet> &ptr) { ptr = 0; return -1; }
  83
  84         RESULT rdsDecoder(ePtr<iRdsDecoder> &ptr) { ptr = 0; return -1; }
  85         RESULT keys(ePtr<iServiceKeys> &ptr) { ptr = 0; return -1; }
  86         RESULT stream(ePtr<iStreamableService> &ptr) { ptr = 0; return -1; }
  87
  88         void setQpipMode(bool value, bool audio) { }
  89
  90                 // iPausableService
  91         RESULT pause();
  92         RESULT unpause();
  93
  94         RESULT info(ePtr<iServiceInformation>&);
  95
  96                 // iSeekableService
  97         RESULT getLength(pts_t &SWIG_OUTPUT);
  98         RESULT seekTo(pts_t to);
  99         RESULT seekRelative(int direction, pts_t to);
 100         RESULT getPlayPosition(pts_t &SWIG_OUTPUT);
 101         RESULT setTrickmode(int trick);
 102         RESULT isCurrentlySeekable();
 103
 104                 // iServiceInformation
 105         RESULT getName(std::string &name);
 106         RESULT getEvent(ePtr<eServiceEvent> &evt, int nownext);
 107         int getInfo(int w);
 108         std::string getInfoString(int w);
 109         PyObject *getInfoObject(int w);
 110
 111                 // iAudioTrackSelection
 112         int getNumberOfTracks();
 113         RESULT selectTrack(unsigned int i);
 114         RESULT getTrackInfo(struct iAudioTrackInfo &, unsigned int n);
 115         int getCurrentTrack();
 116
 117                 // iAudioChannelSelection
 118         int getCurrentChannel();
 119         RESULT selectChannel(int i);
 120
 121                 // iSubtitleOutput
 122         RESULT enableSubtitles(eWidget *parent, SWIG_PYOBJECT(ePyObject) entry);
 123         RESULT disableSubtitles(eWidget *parent);
 124         PyObject *getSubtitleList();
 125         PyObject *getCachedSubtitle();
 126
 127                 // iStreamedService
 128         RESULT streamed(ePtr<iStreamedService> &ptr);
 129         PyObject *getBufferCharge();
 130         int setBufferSize(int size);
 131
 132                 // iAudioDelay
 133         int getAC3Delay();
 134         int getPCMDelay();
 135         void setAC3Delay(int);
 136         void setPCMDelay(int);
 137
 138         struct audioStream
 139         {
 140                 GstPad* pad;
 141                 audiotype_t type;
 142                 std::string language_code; /* iso-639, if available. */
 143                 std::string codec; /* clear text codec description */
 144                 audioStream()
 145                         :pad(0), type(atUnknown)
 146                 {
 147                 }
 148         };
 149         struct subtitleStream
 150         {
 151                 GstPad* pad;
 152                 subtype_t type;
 153                 std::string language_code; /* iso-639, if available. */
 154                 subtitleStream()
 155                         :pad(0)
 156                 {
 157                 }
 158         };
 159         struct sourceStream
 160         {
 161                 audiotype_t audiotype;
 162                 containertype_t containertype;
 163                 bool is_video;
 164                 bool is_streaming;
 165                 sourceStream()
 166                         :audiotype(atUnknown), containertype(ctNone), is_video(FALSE), is_streaming(FALSE)
 167                 {
 168                 }
 169         };
 170         struct bufferInfo
 171         {
 172                 int bufferPercent;
 173                 int avgInRate;
 174                 int avgOutRate;
 175                 int64_t bufferingLeft;
 176                 bufferInfo()
 177                         :bufferPercent(0), avgInRate(0), avgOutRate(0), bufferingLeft(-1)
 178                 {
 179                 }
 180         };
 181         struct errorInfo
 182         {
 183                 std::string error_message;
 184                 std::string missing_codec;
 185         };
 186
 187 protected:
 188         ePtr<eTimer> m_nownext_timer;
 189         ePtr<eServiceEvent> m_event_now, m_event_next;
 190         void updateEpgCacheNowNext();
 191 private:
 192         static int pcm_delay;
 193         static int ac3_delay;
 194         int m_currentAudioStream;
 195         int m_currentSubtitleStream;
 196         int selectAudioStream(int i);
 197         std::vector<audioStream> m_audioStreams;
 198         std::vector<subtitleStream> m_subtitleStreams;
 199         eSubtitleWidget *m_subtitle_widget;
 200         int m_currentTrickRatio;
 201         friend class eServiceFactoryMP3;
 202         eServiceReference m_ref;
 203         int m_buffer_size;
 204
 205         bufferInfo m_bufferInfo;
 206         errorInfo m_errorInfo;
 207         eServiceMP3(eServiceReference ref);
 208         Signal2<void,iPlayableService*,int> m_event;
 209         enum
 210         {
 211                 stIdle, stRunning, stStopped,
 212         };
 213         int m_state;
 214         GstElement *m_gst_playbin, *audioSink, *videoSink;
 215         GstTagList *m_stream_tags;
 216
 217         struct Message
 218         {
 219                 Message()
 220                         :type(-1)
 221                 {}
 222                 Message(int type)
 223                         :type(type)
 224                 {}
 225                 Message(int type, GstPad *pad)
 226                         :type(type)
 227                 {
 228                         d.pad=pad;
 229                 }
 230                                 Message(int type, GstBuffer *buffer)
 231                         :type(type)
 232                 {
 233                         d.buffer=buffer;
 234                 }
 235
 236                 int type;
 237                 union {
 238                         GstBuffer *buffer; // for msg type 2
 239                         GstPad *pad; // for msg type 3
 240                 } d;
 241         };
 242
 243         eFixedMessagePump<Message> m_pump;
 244
 245         audiotype_t gstCheckAudioPad(GstStructure* structure);
 246 #if GST_VERSION_MAJOR < 1
 247         static gint match_sinktype(GstElement *element, gpointer type);
 248 #else
 249         static gint match_sinktype(const GValue *velement, const gchar *type);
 250 #endif
 251         void gstBusCall(GstBus *bus, GstMessage *msg);
 252         static GstBusSyncReply gstBusSyncHandler(GstBus *bus, GstMessage *message, gpointer user_data);
 253         static void gstTextpadHasCAPS(GstPad *pad, GParamSpec * unused, gpointer user_data);
 254         void gstTextpadHasCAPS_synced(GstPad *pad);
 255         static void gstCBsubtitleAvail(GstElement *element, GstBuffer *buffer, gpointer user_data);
 256         GstPad* gstCreateSubtitleSink(eServiceMP3* _this, subtype_t type);
 257         void gstPoll(const Message&);
 258         static void gstHTTPSourceSetAgent(GObject *source, GParamSpec *unused, gpointer user_data);
 259
 260         struct SubtitlePage
 261         {
 262                 enum { Unknown, Pango, Vob } type;
 263                 ePangoSubtitlePage pango_page;
 264                 eVobSubtitlePage vob_page;
 265         };
 266
 267         std::list<SubtitlePage> m_subtitle_pages;
 268         ePtr<eTimer> m_subtitle_sync_timer;
 269
 270         ePtr<eTimer> m_streamingsrc_timeout;
 271         pts_t m_prev_decoder_time;
 272         int m_decoder_time_valid_state;
 273
 274         void pushSubtitles();
 275         void pullSubtitle(GstBuffer *buffer);
 276         void sourceTimeout();
 277         sourceStream m_sourceinfo;
 278         gulong m_subs_to_pull_handler_id;
 279
 280         RESULT seekToImpl(pts_t to);
 281
 282         gint m_aspect, m_width, m_height, m_framerate, m_progressive;
 283         std::string m_useragent;
 284         RESULT trickSeek(gdouble ratio);
 285 };
 286
 287 #endif