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         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, stPGS } subtype_t;
  51 typedef enum { ctNone, ctMPEGTS, ctMPEGPS, ctMKV, ctAVI, ctMP4, ctVCD, ctCDA } containertype_t;
  52
  53 class eServiceMP3: public iPlayableService, public iPauseableService,
  54         public iServiceInformation, public iSeekableService, public iAudioTrackSelection, public iAudioChannelSelection,
  55         public iSubtitleOutput, public iStreamedService, public iAudioDelay, public Object
  56 {
  57         DECLARE_REF(eServiceMP3);
  58 public:
  59         virtual ~eServiceMP3();
  60
  61                 // iPlayableService
  62         RESULT connectEvent(const Slot2<void,iPlayableService*,int> &event, ePtr<eConnection> &connection);
  63         RESULT start();
  64         RESULT stop();
  65         RESULT setTarget(int target);
  66
  67         RESULT pause(ePtr<iPauseableService> &ptr);
  68         RESULT setSlowMotion(int ratio);
  69         RESULT setFastForward(int ratio);
  70
  71         RESULT seek(ePtr<iSeekableService> &ptr);
  72         RESULT audioTracks(ePtr<iAudioTrackSelection> &ptr);
  73         RESULT audioChannel(ePtr<iAudioChannelSelection> &ptr);
  74         RESULT subtitle(ePtr<iSubtitleOutput> &ptr);
  75         RESULT audioDelay(ePtr<iAudioDelay> &ptr);
  76
  77                 // not implemented (yet)
  78         RESULT frontendInfo(ePtr<iFrontendInformation> &ptr) { ptr = 0; return -1; }
  79         RESULT subServices(ePtr<iSubserviceList> &ptr) { ptr = 0; return -1; }
  80         RESULT timeshift(ePtr<iTimeshiftService> &ptr) { ptr = 0; return -1; }
  81         RESULT cueSheet(ePtr<iCueSheet> &ptr) { ptr = 0; return -1; }
  82
  83         RESULT rdsDecoder(ePtr<iRdsDecoder> &ptr) { ptr = 0; return -1; }
  84         RESULT keys(ePtr<iServiceKeys> &ptr) { ptr = 0; return -1; }
  85         RESULT stream(ePtr<iStreamableService> &ptr) { ptr = 0; return -1; }
  86
  87                 // iPausableService
  88         RESULT pause();
  89         RESULT unpause();
  90
  91         RESULT info(ePtr<iServiceInformation>&);
  92
  93                 // iSeekableService
  94         RESULT getLength(pts_t &SWIG_OUTPUT);
  95         RESULT seekTo(pts_t to);
  96         RESULT seekRelative(int direction, pts_t to);
  97         RESULT getPlayPosition(pts_t &SWIG_OUTPUT);
  98         RESULT setTrickmode(int trick);
  99         RESULT isCurrentlySeekable();
 100
 101                 // iServiceInformation
 102         RESULT getName(std::string &name);
 103         int getInfo(int w);
 104         std::string getInfoString(int w);
 105         PyObject *getInfoObject(int w);
 106
 107                 // iAudioTrackSelection
 108         int getNumberOfTracks();
 109         RESULT selectTrack(unsigned int i);
 110         RESULT getTrackInfo(struct iAudioTrackInfo &, unsigned int n);
 111         int getCurrentTrack();
 112
 113                 // iAudioChannelSelection
 114         int getCurrentChannel();
 115         RESULT selectChannel(int i);
 116
 117                 // iSubtitleOutput
 118         RESULT enableSubtitles(eWidget *parent, SWIG_PYOBJECT(ePyObject) entry);
 119         RESULT disableSubtitles(eWidget *parent);
 120         PyObject *getSubtitleList();
 121         PyObject *getCachedSubtitle();
 122
 123                 // iStreamedService
 124         RESULT streamed(ePtr<iStreamedService> &ptr);
 125         PyObject *getBufferCharge();
 126         int setBufferSize(int size);
 127
 128                 // iAudioDelay
 129         int getAC3Delay();
 130         int getPCMDelay();
 131         void setAC3Delay(int);
 132         void setPCMDelay(int);
 133
 134         struct audioStream
 135         {
 136                 GstPad* pad;
 137                 audiotype_t type;
 138                 std::string language_code; /* iso-639, if available. */
 139                 std::string codec; /* clear text codec description */
 140                 audioStream()
 141                         :pad(0), type(atUnknown)
 142                 {
 143                 }
 144         };
 145         struct subtitleStream
 146         {
 147                 GstPad* pad;
 148                 subtype_t type;
 149                 std::string language_code; /* iso-639, if available. */
 150                 subtitleStream()
 151                         :pad(0)
 152                 {
 153                 }
 154         };
 155         struct sourceStream
 156         {
 157                 audiotype_t audiotype;
 158                 containertype_t containertype;
 159                 bool is_video;
 160                 bool is_streaming;
 161                 sourceStream()
 162                         :audiotype(atUnknown), containertype(ctNone), is_video(FALSE), is_streaming(FALSE)
 163                 {
 164                 }
 165         };
 166         struct bufferInfo
 167         {
 168                 int bufferPercent;
 169                 int avgInRate;
 170                 int avgOutRate;
 171                 long long bufferingLeft;
 172                 bufferInfo()
 173                         :bufferPercent(0), avgInRate(0), avgOutRate(0), bufferingLeft(-1)
 174                 {
 175                 }
 176         };
 177 private:
 178         static int pcm_delay;
 179         static int ac3_delay;
 180         int m_currentAudioStream;
 181         int m_currentSubtitleStream;
 182         int selectAudioStream(int i);
 183         std::vector<audioStream> m_audioStreams;
 184         std::vector<subtitleStream> m_subtitleStreams;
 185         eSubtitleWidget *m_subtitle_widget;
 186         int m_currentTrickRatio;
 187         ePtr<eTimer> m_seekTimeout;
 188         void seekTimeoutCB();
 189         friend class eServiceFactoryMP3;
 190         eServiceReference m_ref;
 191         int m_buffer_size;
 192         bufferInfo m_bufferInfo;
 193         eServiceMP3(eServiceReference ref);
 194         Signal2<void,iPlayableService*,int> m_event;
 195         enum
 196         {
 197                 stIdle, stRunning, stStopped,
 198         };
 199         int m_state;
 200         GstElement *m_gst_playbin;
 201         GstElement *m_gst_subtitlebin;
 202         GstTagList *m_stream_tags;
 203
 204         struct Message
 205         {
 206                 Message()
 207                         :type(-1)
 208                 {}
 209                 Message(int type)
 210                         :type(type)
 211                 {}
 212                 Message(int type, GstPad *pad)
 213                         :type(type)
 214                 {
 215                         d.pad=pad;
 216                 }
 217
 218                 int type;
 219                 union {
 220                         GstPad *pad; // for msg type 3
 221                 } d;
 222         };
 223
 224         eFixedMessagePump<Message> m_pump;
 225         std::string m_error_message;
 226
 227         audiotype_t gstCheckAudioPad(GstStructure* structure);
 228         void gstBusCall(GstBus *bus, GstMessage *msg);
 229         static GstBusSyncReply gstBusSyncHandler(GstBus *bus, GstMessage *message, gpointer user_data);
 230         static void gstHTTPSourceSetAgent(GObject *source, GParamSpec *unused, gpointer user_data);
 231         static void gstCBsubtitleAvail(GstElement *element, gpointer user_data);
 232         static GstCaps* gstGhostpadGetCAPS (GstPad * pad);
 233         static gboolean gstGhostpadAcceptCAPS(GstPad * pad, GstCaps * caps);
 234         static void gstGhostpadLink(gpointer user_data, GstCaps * caps);
 235         static GstFlowReturn gstGhostpadBufferAlloc(GstPad *pad, guint64 offset, guint size, GstCaps *caps, GstBuffer **buf);
 236         static void gstGhostpadHasCAPS(GstPad *pad, GParamSpec * unused, gpointer user_data);
 237         static gboolean gstGhostpadSinkEvent(GstPad * pad, GstEvent * event);
 238         static GstFlowReturn gstGhostpadChainFunction(GstPad * pad, GstBuffer * buffer);
 239 /*      static void gstCBsubtitleCAPS(GObject *obj, GParamSpec *pspec, gpointer user_data);
 240         static void gstCBsubtitleLink(subtype_t type, gpointer user_data);
 241         static gboolean gstCBsubtitleDrop(GstPad *pad, GstBuffer *buffer, gpointer user_data);*/
 242         void gstPoll(const Message&);
 243         void gstGhostpadHasCAPS_synced(GstPad *pad);
 244
 245         GstPadBufferAllocFunction m_ghost_pad_buffer_alloc;
 246         GstPadChainFunction m_ghost_pad_chain_function;
 247         GstPadEventFunction m_ghost_pad_subtitle_sink_event;
 248         GstCaps *m_gst_prev_subtitle_caps;
 249         GstSegment m_gst_subtitle_segment;
 250         GstPadEventFunction m_gst_sink_event;
 251
 252         struct SubtitlePage
 253         {
 254                 enum { Unknown, Pango, Vob } type;
 255                 ePangoSubtitlePage pango_page;
 256                 eVobSubtitlePage vob_page;
 257         };
 258
 259         std::list<SubtitlePage> m_subtitle_pages;
 260         ePtr<eTimer> m_subtitle_sync_timer;
 261         ePtr<eTimer> m_subtitle_hide_timer;
 262         ePtr<eTimer> m_streamingsrc_timeout;
 263         void pushSubtitles();
 264         void pullSubtitle();
 265         void hideSubtitles();
 266         void sourceTimeout();
 267         int m_subs_to_pull;
 268         sourceStream m_sourceinfo;
 269         eSingleLock m_subs_to_pull_lock;
 270         gulong m_subs_to_pull_handler_id;
 271
 272         RESULT seekToImpl(pts_t to);
 273
 274         gint m_aspect, m_width, m_height, m_framerate, m_progressive;
 275         std::string m_useragent;
 276         RESULT trickSeek(gdouble ratio);
 277 };
 278 #endif
 279
 280 #endif