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

   1 #ifdef HAVE_GSTREAMER
   2
   3         /* note: this requires gstreamer 0.10.x and a big list of plugins. */
   4         /* it's currently hardcoded to use a big-endian alsasink as sink. */
   5 #include <lib/base/eerror.h>
   6 #include <lib/base/object.h>
   7 #include <lib/base/ebase.h>
   8 #include <string>
   9 #include <lib/service/servicemp3.h>
  10 #include <lib/service/service.h>
  11 #include <lib/components/file_eraser.h>
  12 #include <lib/base/init_num.h>
  13 #include <lib/base/init.h>
  14 #include <gst/gst.h>
  15 #include <gst/pbutils/missing-plugins.h>
  16 #include <sys/stat.h>
  17 /* for subtitles */
  18 #include <lib/gui/esubtitle.h>
  19
  20 // eServiceFactoryMP3
  21
  22 eServiceFactoryMP3::eServiceFactoryMP3()
  23 {
  24         ePtr<eServiceCenter> sc;
  25
  26         eServiceCenter::getPrivInstance(sc);
  27         if (sc)
  28         {
  29                 std::list<std::string> extensions;
  30                 extensions.push_back("mp3");
  31                 extensions.push_back("ogg");
  32                 extensions.push_back("mpg");
  33                 extensions.push_back("vob");
  34                 extensions.push_back("wav");
  35                 extensions.push_back("wave");
  36                 extensions.push_back("mkv");
  37                 extensions.push_back("avi");
  38                 extensions.push_back("dat");
  39                 extensions.push_back("flac");
  40                 extensions.push_back("mp4");
  41                 sc->addServiceFactory(eServiceFactoryMP3::id, this, extensions);
  42         }
  43
  44         m_service_info = new eStaticServiceMP3Info();
  45 }
  46
  47 eServiceFactoryMP3::~eServiceFactoryMP3()
  48 {
  49         ePtr<eServiceCenter> sc;
  50
  51         eServiceCenter::getPrivInstance(sc);
  52         if (sc)
  53                 sc->removeServiceFactory(eServiceFactoryMP3::id);
  54 }
  55
  56 DEFINE_REF(eServiceFactoryMP3)
  57
  58         // iServiceHandler
  59 RESULT eServiceFactoryMP3::play(const eServiceReference &ref, ePtr<iPlayableService> &ptr)
  60 {
  61                 // check resources...
  62         ptr = new eServiceMP3(ref.path.c_str());
  63         return 0;
  64 }
  65
  66 RESULT eServiceFactoryMP3::record(const eServiceReference &ref, ePtr<iRecordableService> &ptr)
  67 {
  68         ptr=0;
  69         return -1;
  70 }
  71
  72 RESULT eServiceFactoryMP3::list(const eServiceReference &, ePtr<iListableService> &ptr)
  73 {
  74         ptr=0;
  75         return -1;
  76 }
  77
  78 RESULT eServiceFactoryMP3::info(const eServiceReference &ref, ePtr<iStaticServiceInformation> &ptr)
  79 {
  80         ptr = m_service_info;
  81         return 0;
  82 }
  83
  84 class eMP3ServiceOfflineOperations: public iServiceOfflineOperations
  85 {
  86         DECLARE_REF(eMP3ServiceOfflineOperations);
  87         eServiceReference m_ref;
  88 public:
  89         eMP3ServiceOfflineOperations(const eServiceReference &ref);
  90
  91         RESULT deleteFromDisk(int simulate);
  92         RESULT getListOfFilenames(std::list<std::string> &);
  93 };
  94
  95 DEFINE_REF(eMP3ServiceOfflineOperations);
  96
  97 eMP3ServiceOfflineOperations::eMP3ServiceOfflineOperations(const eServiceReference &ref): m_ref((const eServiceReference&)ref)
  98 {
  99 }
 100
 101 RESULT eMP3ServiceOfflineOperations::deleteFromDisk(int simulate)
 102 {
 103         if (simulate)
 104                 return 0;
 105         else
 106         {
 107                 std::list<std::string> res;
 108                 if (getListOfFilenames(res))
 109                         return -1;
 110
 111                 eBackgroundFileEraser *eraser = eBackgroundFileEraser::getInstance();
 112                 if (!eraser)
 113                         eDebug("FATAL !! can't get background file eraser");
 114
 115                 for (std::list<std::string>::iterator i(res.begin()); i != res.end(); ++i)
 116                 {
 117                         eDebug("Removing %s...", i->c_str());
 118                         if (eraser)
 119                                 eraser->erase(i->c_str());
 120                         else
 121                                 ::unlink(i->c_str());
 122                 }
 123
 124                 return 0;
 125         }
 126 }
 127
 128 RESULT eMP3ServiceOfflineOperations::getListOfFilenames(std::list<std::string> &res)
 129 {
 130         res.clear();
 131         res.push_back(m_ref.path);
 132         return 0;
 133 }
 134
 135
 136 RESULT eServiceFactoryMP3::offlineOperations(const eServiceReference &ref, ePtr<iServiceOfflineOperations> &ptr)
 137 {
 138         ptr = new eMP3ServiceOfflineOperations(ref);
 139         return 0;
 140 }
 141
 142 // eStaticServiceMP3Info
 143
 144
 145 // eStaticServiceMP3Info is seperated from eServiceMP3 to give information
 146 // about unopened files.
 147
 148 // probably eServiceMP3 should use this class as well, and eStaticServiceMP3Info
 149 // should have a database backend where ID3-files etc. are cached.
 150 // this would allow listing the mp3 database based on certain filters.
 151
 152 DEFINE_REF(eStaticServiceMP3Info)
 153
 154 eStaticServiceMP3Info::eStaticServiceMP3Info()
 155 {
 156 }
 157
 158 RESULT eStaticServiceMP3Info::getName(const eServiceReference &ref, std::string &name)
 159 {
 160         size_t last = ref.path.rfind('/');
 161         if (last != std::string::npos)
 162                 name = ref.path.substr(last+1);
 163         else
 164                 name = ref.path;
 165         return 0;
 166 }
 167
 168 int eStaticServiceMP3Info::getLength(const eServiceReference &ref)
 169 {
 170         return -1;
 171 }
 172
 173 // eServiceMP3
 174
 175 eServiceMP3::eServiceMP3(const char *filename): m_filename(filename), m_pump(eApp, 1)
 176 {
 177         m_stream_tags = 0;
 178         m_audioStreams.clear();
 179         m_subtitleStreams.clear();
 180         m_currentAudioStream = 0;
 181         m_currentSubtitleStream = 0;
 182         m_subtitle_widget = 0;
 183         m_currentTrickRatio = 0;
 184         CONNECT(m_seekTimeout.timeout, eServiceMP3::seekTimeoutCB);
 185         CONNECT(m_pump.recv_msg, eServiceMP3::gstPoll);
 186         GstElement *source = 0;
 187
 188         GstElement *decoder = 0, *conv = 0, *flt = 0, *sink = 0; /* for audio */
 189
 190         GstElement *audio = 0, *switch_audio = 0, *queue_audio = 0, *video = 0, *queue_video = 0, *videodemux = 0;
 191
 192         m_state = stIdle;
 193         eDebug("SERVICEMP3 construct!");
 194
 195                 /* FIXME: currently, decodebin isn't possible for
 196                    video streams. in that case, make a manual pipeline. */
 197
 198         const char *ext = strrchr(filename, '.');
 199         if (!ext)
 200                 ext = filename;
 201
 202         sourceStream sourceinfo;
 203         if ( (strcasecmp(ext, ".mpeg") && strcasecmp(ext, ".mpg") && strcasecmp(ext, ".vob") && strcasecmp(ext, ".bin") && strcasecmp(ext, ".dat") ) == 0 )
 204                 sourceinfo.containertype = ctMPEGPS;
 205         else if ( strcasecmp(ext, ".ts") == 0 )
 206                 sourceinfo.containertype = ctMPEGTS;
 207         else if ( strcasecmp(ext, ".mkv") == 0 )
 208                 sourceinfo.containertype = ctMKV;
 209         else if ( strcasecmp(ext, ".avi") == 0 )
 210                 sourceinfo.containertype = ctAVI;
 211         else if ( strcasecmp(ext, ".mp4") == 0 )
 212                 sourceinfo.containertype = ctMP4;
 213         else if ( (strncmp(filename, "/autofs/", 8) || strncmp(filename+strlen(filename)-13, "/track-", 7) || strcasecmp(ext, ".wav")) == 0 )
 214                 sourceinfo.containertype = ctCDA;
 215         if ( strcasecmp(ext, ".dat") == 0 )
 216                 sourceinfo.containertype = ctVCD;
 217         if ( (strncmp(filename, "http://", 7)) == 0 )
 218                 sourceinfo.is_streaming = TRUE;
 219
 220         sourceinfo.is_video = ( sourceinfo.containertype && sourceinfo.containertype != ctCDA );
 221
 222         eDebug("filename=%s, containertype=%d, is_video=%d, is_streaming=%d", filename, sourceinfo.containertype, sourceinfo.is_video, sourceinfo.is_streaming);
 223
 224         int all_ok = 0;
 225
 226         m_gst_pipeline = gst_pipeline_new ("mediaplayer");
 227         if (!m_gst_pipeline)
 228                 m_error_message = "failed to create GStreamer pipeline!\n";
 229
 230         if ( sourceinfo.containertype == ctCDA )
 231         {
 232                 source = gst_element_factory_make ("cdiocddasrc", "cda-source");
 233                 if (source)
 234                         g_object_set (G_OBJECT (source), "device", "/dev/cdroms/cdrom0", NULL);
 235                 else
 236                         sourceinfo.containertype = ctNone;
 237         }
 238         if ( !sourceinfo.is_streaming && sourceinfo.containertype != ctCDA )
 239         {
 240                 source = gst_element_factory_make ("filesrc", "file-source");
 241                 if (source)
 242                         g_object_set (G_OBJECT (source), "location", filename, NULL);
 243                 else
 244                         m_error_message = "GStreamer can't open filesrc " + (std::string)filename + "!\n";
 245         }
 246         else if ( sourceinfo.is_streaming )
 247         {
 248                 source = gst_element_factory_make ("neonhttpsrc", "http-source");
 249                 if (source)
 250                         g_object_set (G_OBJECT (source), "automatic-redirect", TRUE, NULL);
 251                 else
 252                         m_error_message = "GStreamer plugin neonhttpsrc not available!\n";
 253         }
 254         else
 255         {
 256                 int track = atoi(filename+18);
 257                 eDebug("play audio CD track #%i",track);
 258                 if (track > 0)
 259                         g_object_set (G_OBJECT (source), "track", track, NULL);
 260         }
 261         if ( sourceinfo.is_video )
 262         {
 263                         /* filesrc -> mpegdemux -> | queue_audio -> dvbaudiosink
 264                                                    | queue_video -> dvbvideosink */
 265
 266                 audio = gst_element_factory_make("dvbaudiosink", "audiosink");
 267                 if (!audio)
 268                         m_error_message += "failed to create Gstreamer element dvbaudiosink\n";
 269
 270                 video = gst_element_factory_make("dvbvideosink", "videosink");
 271                 if (!video)
 272                         m_error_message += "failed to create Gstreamer element dvbvideosink\n";
 273
 274                 queue_audio = gst_element_factory_make("queue", "queue_audio");
 275                 queue_video = gst_element_factory_make("queue", "queue_video");
 276
 277                 char demux_type[14];
 278                 switch (sourceinfo.containertype)
 279                 {
 280                         case ctMPEGTS:
 281                                 strcat(demux_type, "flutsdemux");
 282                                 break;
 283                         case ctMPEGPS:
 284                         case ctVCD:
 285                                 strcat(demux_type, "flupsdemux");
 286                                 break;
 287                         case ctMKV:
 288                                 strcat(demux_type, "matroskademux");
 289                                 break;
 290                         case ctAVI:
 291                                 strcat(demux_type, "avidemux");
 292                                 break;
 293                         case ctMP4:
 294                                 strcat(demux_type, "qtdemux");
 295                                 break;
 296                         default:
 297                                 break;
 298                 }
 299                 videodemux = gst_element_factory_make(demux_type, "videodemux");
 300                 if (!videodemux)
 301                         m_error_message = "GStreamer plugin " + (std::string)demux_type + " not available!\n";
 302
 303                 switch_audio = gst_element_factory_make ("input-selector", "switch_audio");
 304                 if (!switch_audio)
 305                         m_error_message = "GStreamer plugin input-selector not available!\n";
 306
 307                 if (audio && queue_audio && video && queue_video && videodemux && switch_audio)
 308                 {
 309                         g_object_set (G_OBJECT (queue_audio), "max-size-bytes", 256*1024, NULL);
 310                         g_object_set (G_OBJECT (queue_audio), "max-size-buffers", 0, NULL);
 311                         g_object_set (G_OBJECT (queue_audio), "max-size-time", (guint64)0, NULL);
 312                         g_object_set (G_OBJECT (queue_video), "max-size-buffers", 0, NULL);
 313                         g_object_set (G_OBJECT (queue_video), "max-size-bytes", 2*1024*1024, NULL);
 314                         g_object_set (G_OBJECT (queue_video), "max-size-time", (guint64)0, NULL);
 315                         g_object_set (G_OBJECT (switch_audio), "select-all", TRUE, NULL);
 316                         all_ok = 1;
 317                 }
 318         } else /* is audio */
 319         {
 320
 321                         /* filesrc -> decodebin -> audioconvert -> capsfilter -> alsasink */
 322                 decoder = gst_element_factory_make ("decodebin", "decoder");
 323                 if (!decoder)
 324                         m_error_message += "failed to create Gstreamer element decodebin\n";
 325
 326                 conv = gst_element_factory_make ("audioconvert", "converter");
 327                 if (!conv)
 328                         m_error_message += "failed to create Gstreamer element audioconvert\n";
 329
 330                 flt = gst_element_factory_make ("capsfilter", "flt");
 331                 if (!flt)
 332                         m_error_message += "failed to create Gstreamer element capsfilter\n";
 333
 334                         /* for some reasons, we need to set the sample format to depth/width=16, because auto negotiation doesn't work. */
 335                         /* endianness, however, is not required to be set anymore. */
 336                 if (flt)
 337                 {
 338                         GstCaps *caps = gst_caps_new_simple("audio/x-raw-int", /* "endianness", G_TYPE_INT, 4321, */ "depth", G_TYPE_INT, 16, "width", G_TYPE_INT, 16, /*"channels", G_TYPE_INT, 2, */NULL);
 339                         g_object_set (G_OBJECT (flt), "caps", caps, NULL);
 340                         gst_caps_unref(caps);
 341                 }
 342
 343                 sink = gst_element_factory_make ("alsasink", "alsa-output");
 344                 if (!sink)
 345                         m_error_message += "failed to create Gstreamer element alsasink\n";
 346
 347                 if (source && decoder && conv && sink)
 348                         all_ok = 1;
 349         }
 350         if (m_gst_pipeline && all_ok)
 351         {
 352                 gst_bus_set_sync_handler(gst_pipeline_get_bus (GST_PIPELINE (m_gst_pipeline)), gstBusSyncHandler, this);
 353
 354                 if ( sourceinfo.containertype == ctCDA )
 355                 {
 356                         queue_audio = gst_element_factory_make("queue", "queue_audio");
 357                         g_object_set (G_OBJECT (sink), "preroll-queue-len", 80, NULL);
 358                         gst_bin_add_many (GST_BIN (m_gst_pipeline), source, queue_audio, conv, sink, NULL);
 359                         gst_element_link_many(source, queue_audio, conv, sink, NULL);
 360                 }
 361                 else if ( sourceinfo.is_video )
 362                 {
 363                         char srt_filename[strlen(filename)+1];
 364                         strncpy(srt_filename,filename,strlen(filename)-3);
 365                         srt_filename[strlen(filename)-3]='\0';
 366                         strcat(srt_filename, "srt");
 367                         struct stat buffer;
 368                         if (stat(srt_filename, &buffer) == 0)
 369                         {
 370                                 eDebug("subtitle file found: %s",srt_filename);
 371                                 GstElement *subsource = gst_element_factory_make ("filesrc", "srt_source");
 372                                 g_object_set (G_OBJECT (subsource), "location", srt_filename, NULL);
 373                                 gst_bin_add(GST_BIN (m_gst_pipeline), subsource);
 374                                 GstPad *switchpad = gstCreateSubtitleSink(this, stSRT);
 375                                 gst_pad_link(gst_element_get_pad (subsource, "src"), switchpad);
 376                                 subtitleStream subs;
 377                                 subs.pad = switchpad;
 378                                 subs.type = stSRT;
 379                                 subs.language_code = std::string("und");
 380                                 m_subtitleStreams.push_back(subs);
 381                         }
 382                         gst_bin_add_many(GST_BIN(m_gst_pipeline), source, videodemux, audio, queue_audio, video, queue_video, switch_audio, NULL);
 383
 384                         if ( sourceinfo.containertype == ctVCD )
 385                         {
 386                                 GstElement *cdxaparse = gst_element_factory_make("cdxaparse", "cdxaparse");
 387                                 gst_bin_add(GST_BIN(m_gst_pipeline), cdxaparse);
 388                                 gst_element_link(source, cdxaparse);
 389                                 gst_element_link(cdxaparse, videodemux);
 390                         }
 391                         else
 392                                 gst_element_link(source, videodemux);
 393
 394                         gst_element_link(switch_audio, queue_audio);
 395                         gst_element_link(queue_audio, audio);
 396                         gst_element_link(queue_video, video);
 397                         g_signal_connect(videodemux, "pad-added", G_CALLBACK (gstCBpadAdded), this);
 398
 399                 } else /* is audio*/
 400                 {
 401                         queue_audio = gst_element_factory_make("queue", "queue_audio");
 402
 403                         g_signal_connect (decoder, "new-decoded-pad", G_CALLBACK(gstCBnewPad), this);
 404                         g_signal_connect (decoder, "unknown-type", G_CALLBACK(gstCBunknownType), this);
 405
 406                         g_object_set (G_OBJECT (sink), "preroll-queue-len", 80, NULL);
 407
 408                                 /* gst_bin will take the 'floating references' */
 409                         gst_bin_add_many (GST_BIN (m_gst_pipeline),
 410                                                 source, queue_audio, decoder, NULL);
 411
 412                                 /* in decodebin's case we can just connect the source with the decodebin, and decodebin will take care about id3demux (or whatever is required) */
 413                         gst_element_link_many(source, queue_audio, decoder, NULL);
 414
 415                                 /* create audio bin with the audioconverter, the capsfilter and the audiosink */
 416                         audio = gst_bin_new ("audiobin");
 417
 418                         GstPad *audiopad = gst_element_get_static_pad (conv, "sink");
 419                         gst_bin_add_many(GST_BIN(audio), conv, flt, sink, NULL);
 420                         gst_element_link_many(conv, flt, sink, NULL);
 421                         gst_element_add_pad(audio, gst_ghost_pad_new ("sink", audiopad));
 422                         gst_object_unref(audiopad);
 423                         gst_bin_add (GST_BIN(m_gst_pipeline), audio);
 424                 }
 425         } else
 426         {
 427                 m_event((iPlayableService*)this, evUser+12);
 428
 429                 if (m_gst_pipeline)
 430                         gst_object_unref(GST_OBJECT(m_gst_pipeline));
 431                 if (source)
 432                         gst_object_unref(GST_OBJECT(source));
 433                 if (decoder)
 434                         gst_object_unref(GST_OBJECT(decoder));
 435                 if (conv)
 436                         gst_object_unref(GST_OBJECT(conv));
 437                 if (sink)
 438                         gst_object_unref(GST_OBJECT(sink));
 439
 440                 if (audio)
 441                         gst_object_unref(GST_OBJECT(audio));
 442                 if (queue_audio)
 443                         gst_object_unref(GST_OBJECT(queue_audio));
 444                 if (video)
 445                         gst_object_unref(GST_OBJECT(video));
 446                 if (queue_video)
 447                         gst_object_unref(GST_OBJECT(queue_video));
 448                 if (videodemux)
 449                         gst_object_unref(GST_OBJECT(videodemux));
 450                 if (switch_audio)
 451                         gst_object_unref(GST_OBJECT(switch_audio));
 452
 453                 eDebug("sorry, can't play: %s",m_error_message.c_str());
 454                 m_gst_pipeline = 0;
 455         }
 456
 457         gst_element_set_state (m_gst_pipeline, GST_STATE_PLAYING);
 458 }
 459
 460 eServiceMP3::~eServiceMP3()
 461 {
 462         delete m_subtitle_widget;
 463         if (m_state == stRunning)
 464                 stop();
 465
 466         if (m_stream_tags)
 467                 gst_tag_list_free(m_stream_tags);
 468
 469         if (m_gst_pipeline)
 470         {
 471                 gst_object_unref (GST_OBJECT (m_gst_pipeline));
 472                 eDebug("SERVICEMP3 destruct!");
 473         }
 474 }
 475
 476 DEFINE_REF(eServiceMP3);
 477
 478 RESULT eServiceMP3::connectEvent(const Slot2<void,iPlayableService*,int> &event, ePtr<eConnection> &connection)
 479 {
 480         connection = new eConnection((iPlayableService*)this, m_event.connect(event));
 481         return 0;
 482 }
 483
 484 RESULT eServiceMP3::start()
 485 {
 486         assert(m_state == stIdle);
 487
 488         m_state = stRunning;
 489         if (m_gst_pipeline)
 490         {
 491                 eDebug("starting pipeline");
 492                 gst_element_set_state (m_gst_pipeline, GST_STATE_PLAYING);
 493         }
 494         m_event(this, evStart);
 495         return 0;
 496 }
 497
 498 RESULT eServiceMP3::stop()
 499 {
 500         assert(m_state != stIdle);
 501         if (m_state == stStopped)
 502                 return -1;
 503         eDebug("MP3: %s stop\n", m_filename.c_str());
 504         gst_element_set_state(m_gst_pipeline, GST_STATE_NULL);
 505         m_state = stStopped;
 506         return 0;
 507 }
 508
 509 RESULT eServiceMP3::setTarget(int target)
 510 {
 511         return -1;
 512 }
 513
 514 RESULT eServiceMP3::pause(ePtr<iPauseableService> &ptr)
 515 {
 516         ptr=this;
 517         return 0;
 518 }
 519
 520 RESULT eServiceMP3::setSlowMotion(int ratio)
 521 {
 522         /* we can't do slomo yet */
 523         return -1;
 524 }
 525
 526 RESULT eServiceMP3::setFastForward(int ratio)
 527 {
 528         m_currentTrickRatio = ratio;
 529         if (ratio)
 530                 m_seekTimeout.start(1000, 0);
 531         else
 532                 m_seekTimeout.stop();
 533         return 0;
 534 }
 535
 536 void eServiceMP3::seekTimeoutCB()
 537 {
 538         pts_t ppos, len;
 539         getPlayPosition(ppos);
 540         getLength(len);
 541         ppos += 90000*m_currentTrickRatio;
 542
 543         if (ppos < 0)
 544         {
 545                 ppos = 0;
 546                 m_seekTimeout.stop();
 547         }
 548         if (ppos > len)
 549         {
 550                 ppos = 0;
 551                 stop();
 552                 m_seekTimeout.stop();
 553                 return;
 554         }
 555         seekTo(ppos);
 556 }
 557
 558                 // iPausableService
 559 RESULT eServiceMP3::pause()
 560 {
 561         if (!m_gst_pipeline)
 562                 return -1;
 563         GstStateChangeReturn res = gst_element_set_state(m_gst_pipeline, GST_STATE_PAUSED);
 564         if (res == GST_STATE_CHANGE_ASYNC)
 565         {
 566                 pts_t ppos;
 567                 getPlayPosition(ppos);
 568                 seekTo(ppos);
 569         }
 570         return 0;
 571 }
 572
 573 RESULT eServiceMP3::unpause()
 574 {
 575         if (!m_gst_pipeline)
 576                 return -1;
 577
 578         GstStateChangeReturn res;
 579         res = gst_element_set_state(m_gst_pipeline, GST_STATE_PLAYING);
 580         return 0;
 581 }
 582
 583         /* iSeekableService */
 584 RESULT eServiceMP3::seek(ePtr<iSeekableService> &ptr)
 585 {
 586         ptr = this;
 587         return 0;
 588 }
 589
 590 RESULT eServiceMP3::getLength(pts_t &pts)
 591 {
 592         if (!m_gst_pipeline)
 593                 return -1;
 594         if (m_state != stRunning)
 595                 return -1;
 596
 597         GstFormat fmt = GST_FORMAT_TIME;
 598         gint64 len;
 599
 600         if (!gst_element_query_duration(m_gst_pipeline, &fmt, &len))
 601                 return -1;
 602
 603                 /* len is in nanoseconds. we have 90 000 pts per second. */
 604
 605         pts = len / 11111;
 606         return 0;
 607 }
 608
 609 RESULT eServiceMP3::seekTo(pts_t to)
 610 {
 611         if (!m_gst_pipeline)
 612                 return -1;
 613
 614                 /* convert pts to nanoseconds */
 615         gint64 time_nanoseconds = to * 11111LL;
 616         if (!gst_element_seek (m_gst_pipeline, 1.0, GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH,
 617                 GST_SEEK_TYPE_SET, time_nanoseconds,
 618                 GST_SEEK_TYPE_NONE, GST_CLOCK_TIME_NONE))
 619         {
 620                 eDebug("SEEK failed");
 621                 return -1;
 622         }
 623         return 0;
 624 }
 625
 626 RESULT eServiceMP3::seekRelative(int direction, pts_t to)
 627 {
 628         if (!m_gst_pipeline)
 629                 return -1;
 630
 631         pts_t ppos;
 632         getPlayPosition(ppos);
 633         ppos += to * direction;
 634         if (ppos < 0)
 635                 ppos = 0;
 636         seekTo(ppos);
 637
 638         return 0;
 639 }
 640
 641 RESULT eServiceMP3::getPlayPosition(pts_t &pts)
 642 {
 643         if (!m_gst_pipeline)
 644                 return -1;
 645         if (m_state != stRunning)
 646                 return -1;
 647
 648         GstFormat fmt = GST_FORMAT_TIME;
 649         gint64 len;
 650
 651         if (!gst_element_query_position(m_gst_pipeline, &fmt, &len))
 652                 return -1;
 653
 654                 /* len is in nanoseconds. we have 90 000 pts per second. */
 655         pts = len / 11111;
 656         return 0;
 657 }
 658
 659 RESULT eServiceMP3::setTrickmode(int trick)
 660 {
 661                 /* trickmode is not yet supported by our dvbmediasinks. */
 662         return -1;
 663 }
 664
 665 RESULT eServiceMP3::isCurrentlySeekable()
 666 {
 667         return 1;
 668 }
 669
 670 RESULT eServiceMP3::info(ePtr<iServiceInformation>&i)
 671 {
 672         i = this;
 673         return 0;
 674 }
 675
 676 RESULT eServiceMP3::getName(std::string &name)
 677 {
 678         name = m_filename;
 679         size_t n = name.rfind('/');
 680         if (n != std::string::npos)
 681                 name = name.substr(n + 1);
 682         return 0;
 683 }
 684
 685 int eServiceMP3::getInfo(int w)
 686 {
 687         gchar *tag = 0;
 688
 689         switch (w)
 690         {
 691         case sTitle:
 692         case sArtist:
 693         case sAlbum:
 694         case sComment:
 695         case sTracknumber:
 696         case sGenre:
 697         case sVideoType:
 698         case sTimeCreate:
 699         case sUser+12:
 700                 return resIsString;
 701         case sCurrentTitle:
 702                 tag = GST_TAG_TRACK_NUMBER;
 703                 break;
 704         case sTotalTitles:
 705                 tag = GST_TAG_TRACK_COUNT;
 706                 break;
 707         default:
 708                 return resNA;
 709         }
 710
 711         if (!m_stream_tags || !tag)
 712                 return 0;
 713
 714         guint value;
 715         if (gst_tag_list_get_uint(m_stream_tags, tag, &value))
 716                 return (int) value;
 717
 718         return 0;
 719
 720 }
 721
 722 std::string eServiceMP3::getInfoString(int w)
 723 {
 724         if ( !m_stream_tags )
 725                 return "";
 726         gchar *tag = 0;
 727         switch (w)
 728         {
 729         case sTitle:
 730                 tag = GST_TAG_TITLE;
 731                 break;
 732         case sArtist:
 733                 tag = GST_TAG_ARTIST;
 734                 break;
 735         case sAlbum:
 736                 tag = GST_TAG_ALBUM;
 737                 break;
 738         case sComment:
 739                 tag = GST_TAG_COMMENT;
 740                 break;
 741         case sTracknumber:
 742                 tag = GST_TAG_TRACK_NUMBER;
 743                 break;
 744         case sGenre:
 745                 tag = GST_TAG_GENRE;
 746                 break;
 747         case sVideoType:
 748                 tag = GST_TAG_VIDEO_CODEC;
 749                 break;
 750         case sTimeCreate:
 751                 GDate *date;
 752                 if (gst_tag_list_get_date(m_stream_tags, GST_TAG_DATE, &date))
 753                 {
 754                         gchar res[5];
 755                         g_date_strftime (res, sizeof(res), "%Y", date);
 756                         return (std::string)res;
 757                 }
 758                 break;
 759         case sUser+12:
 760                 return m_error_message;
 761         default:
 762                 return "";
 763         }
 764         if ( !tag )
 765                 return "";
 766         gchar *value;
 767         if (gst_tag_list_get_string(m_stream_tags, tag, &value))
 768         {
 769                 std::string res = value;
 770                 g_free(value);
 771                 return res;
 772         }
 773         return "";
 774 }
 775
 776 RESULT eServiceMP3::audioChannel(ePtr<iAudioChannelSelection> &ptr)
 777 {
 778         ptr = this;
 779         return 0;
 780 }
 781
 782 RESULT eServiceMP3::audioTracks(ePtr<iAudioTrackSelection> &ptr)
 783 {
 784         ptr = this;
 785         return 0;
 786 }
 787
 788 RESULT eServiceMP3::subtitle(ePtr<iSubtitleOutput> &ptr)
 789 {
 790         ptr = this;
 791         return 0;
 792 }
 793
 794 int eServiceMP3::getNumberOfTracks()
 795 {
 796         return m_audioStreams.size();
 797 }
 798
 799 int eServiceMP3::getCurrentTrack()
 800 {
 801         return m_currentAudioStream;
 802 }
 803
 804 RESULT eServiceMP3::selectTrack(unsigned int i)
 805 {
 806         int ret = selectAudioStream(i);
 807         /* flush */
 808         pts_t ppos;
 809         getPlayPosition(ppos);
 810         seekTo(ppos);
 811
 812         return ret;
 813 }
 814
 815 int eServiceMP3::selectAudioStream(int i)
 816 {
 817         gint nb_sources;
 818         GstPad *active_pad;
 819         GstElement *switch_audio = gst_bin_get_by_name(GST_BIN(m_gst_pipeline),"switch_audio");
 820         if ( !switch_audio )
 821         {
 822                 eDebug("can't switch audio tracks! gst-plugin-selector needed");
 823                 return -1;
 824         }
 825         g_object_get (G_OBJECT (switch_audio), "n-pads", &nb_sources, NULL);
 826         if ( (unsigned int)i >= m_audioStreams.size() || i >= nb_sources || (unsigned int)m_currentAudioStream >= m_audioStreams.size() )
 827                 return -2;
 828         char sinkpad[8];
 829         sprintf(sinkpad, "sink%d", i);
 830         g_object_set (G_OBJECT (switch_audio), "active-pad", gst_element_get_pad (switch_audio, sinkpad), NULL);
 831         g_object_get (G_OBJECT (switch_audio), "active-pad", &active_pad, NULL);
 832         gchar *name;
 833         name = gst_pad_get_name (active_pad);
 834         eDebug ("switched audio to (%s)", name);
 835         g_free(name);
 836         m_currentAudioStream = i;
 837         return 0;
 838 }
 839
 840 int eServiceMP3::getCurrentChannel()
 841 {
 842         return STEREO;
 843 }
 844
 845 RESULT eServiceMP3::selectChannel(int i)
 846 {
 847         eDebug("eServiceMP3::selectChannel(%i)",i);
 848         return 0;
 849 }
 850
 851 RESULT eServiceMP3::getTrackInfo(struct iAudioTrackInfo &info, unsigned int i)
 852 {
 853 //      eDebug("eServiceMP3::getTrackInfo(&info, %i)",i);
 854         if (i >= m_audioStreams.size())
 855                 return -2;
 856         if (m_audioStreams[i].type == atMPEG)
 857                 info.m_description = "MPEG";
 858         else if (m_audioStreams[i].type == atMP3)
 859                 info.m_description = "MP3";
 860         else if (m_audioStreams[i].type == atAC3)
 861                 info.m_description = "AC3";
 862         else if (m_audioStreams[i].type == atAAC)
 863                 info.m_description = "AAC";
 864         else if (m_audioStreams[i].type == atDTS)
 865                 info.m_description = "DTS";
 866         else if (m_audioStreams[i].type == atPCM)
 867                 info.m_description = "PCM";
 868         else if (m_audioStreams[i].type == atOGG)
 869                 info.m_description = "OGG";
 870         else
 871                 info.m_description = "???";
 872         if (info.m_language.empty())
 873                 info.m_language = m_audioStreams[i].language_code;
 874         return 0;
 875 }
 876
 877 void eServiceMP3::gstBusCall(GstBus *bus, GstMessage *msg)
 878 {
 879         if (!msg)
 880                 return;
 881         gchar *sourceName;
 882         GstObject *source;
 883
 884         source = GST_MESSAGE_SRC(msg);
 885         sourceName = gst_object_get_name(source);
 886 #if 0
 887         if (gst_message_get_structure(msg))
 888         {
 889                 gchar *string = gst_structure_to_string(gst_message_get_structure(msg));
 890                 eDebug("gst_message from %s: %s", sourceName, string);
 891                 g_free(string);
 892         }
 893         else
 894                 eDebug("gst_message from %s: %s (without structure)", sourceName, GST_MESSAGE_TYPE_NAME(msg));
 895 #endif
 896         switch (GST_MESSAGE_TYPE (msg))
 897         {
 898         case GST_MESSAGE_EOS:
 899                 m_event((iPlayableService*)this, evEOF);
 900                 break;
 901         case GST_MESSAGE_ERROR:
 902         {
 903                 gchar *debug;
 904                 GError *err;
 905
 906                 gst_message_parse_error (msg, &err, &debug);
 907                 g_free (debug);
 908                 eWarning("Gstreamer error: %s (%i)", err->message, err->code );
 909                 if ( err->domain == GST_STREAM_ERROR && err->code == GST_STREAM_ERROR_DECODE )
 910                 {
 911                         if ( g_strrstr(sourceName, "videosink") )
 912                                 m_event((iPlayableService*)this, evUser+11);
 913                 }
 914                 g_error_free(err);
 915                         /* TODO: signal error condition to user */
 916                 break;
 917         }
 918         case GST_MESSAGE_TAG:
 919         {
 920                 GstTagList *tags, *result;
 921                 gst_message_parse_tag(msg, &tags);
 922
 923                 result = gst_tag_list_merge(m_stream_tags, tags, GST_TAG_MERGE_PREPEND);
 924                 if (result)
 925                 {
 926                         if (m_stream_tags)
 927                                 gst_tag_list_free(m_stream_tags);
 928                         m_stream_tags = result;
 929                 }
 930
 931                 gchar *g_audiocodec;
 932                 if ( gst_tag_list_get_string(tags, GST_TAG_AUDIO_CODEC, &g_audiocodec) && m_audioStreams.size() == 0 )
 933                 {
 934                         GstPad* pad = gst_element_get_pad (GST_ELEMENT(source), "src");
 935                         GstCaps* caps = gst_pad_get_caps(pad);
 936                         GstStructure* str = gst_caps_get_structure(caps, 0);
 937                         if ( !str )
 938                                 break;
 939                         audioStream audio;
 940                         audio.type = gstCheckAudioPad(str);
 941                         m_audioStreams.push_back(audio);
 942                 }
 943
 944                 gst_tag_list_free(tags);
 945                 m_event((iPlayableService*)this, evUpdatedInfo);
 946                 break;
 947         }
 948         case GST_MESSAGE_ASYNC_DONE:
 949         {
 950                 GstTagList *tags;
 951                 for (std::vector<audioStream>::iterator IterAudioStream(m_audioStreams.begin()); IterAudioStream != m_audioStreams.end(); ++IterAudioStream)
 952                 {
 953                         if ( IterAudioStream->pad )
 954                         {
 955                                 g_object_get(IterAudioStream->pad, "tags", &tags, NULL);
 956                                 gchar *g_language;
 957                                 if ( gst_is_tag_list(tags) && gst_tag_list_get_string(tags, GST_TAG_LANGUAGE_CODE, &g_language) )
 958                                 {
 959                                         eDebug("found audio language %s",g_language);
 960                                         IterAudioStream->language_code = std::string(g_language);
 961                                         g_free (g_language);
 962                                 }
 963                         }
 964                 }
 965                 for (std::vector<subtitleStream>::iterator IterSubtitleStream(m_subtitleStreams.begin()); IterSubtitleStream != m_subtitleStreams.end(); ++IterSubtitleStream)
 966                 {
 967                         if ( IterSubtitleStream->pad )
 968                         {
 969                                 g_object_get(IterSubtitleStream->pad, "tags", &tags, NULL);
 970                                 gchar *g_language;
 971                                 if ( gst_is_tag_list(tags) && gst_tag_list_get_string(tags, GST_TAG_LANGUAGE_CODE, &g_language) )
 972                                 {
 973                                         eDebug("found subtitle language %s",g_language);
 974                                         IterSubtitleStream->language_code = std::string(g_language);
 975                                         g_free (g_language);
 976                                 }
 977                         }
 978                 }
 979         }
 980         case GST_MESSAGE_ELEMENT:
 981         {
 982                 if ( gst_is_missing_plugin_message(msg) )
 983                 {
 984                         gchar *description = gst_missing_plugin_message_get_description(msg);
 985                         if ( description )
 986                         {
 987                                 m_error_message = "GStreamer plugin " + (std::string)description + " not available!\n";
 988                                 g_free(description);
 989                                 m_event((iPlayableService*)this, evUser+12);
 990                         }
 991                 }
 992         }
 993         default:
 994                 break;
 995         }
 996         g_free (sourceName);
 997 }
 998
 999 GstBusSyncReply eServiceMP3::gstBusSyncHandler(GstBus *bus, GstMessage *message, gpointer user_data)
1000 {
1001         eServiceMP3 *_this = (eServiceMP3*)user_data;
1002         _this->m_pump.send(1);
1003                 /* wake */
1004         return GST_BUS_PASS;
1005 }
1006
1007 audiotype_t eServiceMP3::gstCheckAudioPad(GstStructure* structure)
1008 {
1009         const gchar* type;
1010         type = gst_structure_get_name(structure);
1011
1012         if (!strcmp(type, "audio/mpeg")) {
1013                         gint mpegversion, layer = 0;
1014                         gst_structure_get_int (structure, "mpegversion", &mpegversion);
1015                         gst_structure_get_int (structure, "layer", &layer);
1016                         eDebug("mime audio/mpeg version %d layer %d", mpegversion, layer);
1017                         switch (mpegversion) {
1018                                 case 1:
1019                                 {
1020                                         if ( layer == 3 )
1021                                                 return atMP3;
1022                                         else
1023                                                 return atMPEG;
1024                                 }
1025                                 case 2:
1026                                         return atMPEG;
1027                                 case 4:
1028                                         return atAAC;
1029                                 default:
1030                                         return atUnknown;
1031                         }
1032                 }
1033         else
1034         {
1035                 eDebug("mime %s", type);
1036                 if (!strcmp(type, "audio/x-ac3") || !strcmp(type, "audio/ac3"))
1037                         return atAC3;
1038                 else if (!strcmp(type, "audio/x-dts") || !strcmp(type, "audio/dts"))
1039                         return atDTS;
1040                 else if (!strcmp(type, "audio/x-raw-int"))
1041                         return atPCM;
1042         }
1043         return atUnknown;
1044 }
1045
1046 void eServiceMP3::gstCBpadAdded(GstElement *decodebin, GstPad *pad, gpointer user_data)
1047 {
1048         const gchar* type;
1049         GstCaps* caps;
1050         GstStructure* str;
1051         caps = gst_pad_get_caps(pad);
1052         str = gst_caps_get_structure(caps, 0);
1053         type = gst_structure_get_name(str);
1054
1055         eDebug("A new pad %s:%s was created", GST_OBJECT_NAME (decodebin), GST_OBJECT_NAME (pad));
1056
1057         eServiceMP3 *_this = (eServiceMP3*)user_data;
1058         GstBin *pipeline = GST_BIN(_this->m_gst_pipeline);
1059         if (g_strrstr(type,"audio"))
1060         {
1061                 audioStream audio;
1062                 audio.type = _this->gstCheckAudioPad(str);
1063                 GstElement *switch_audio = gst_bin_get_by_name(pipeline , "switch_audio");
1064                 if ( switch_audio )
1065                 {
1066                         GstPad *sinkpad = gst_element_get_request_pad (switch_audio, "sink%d");
1067                         gst_pad_link(pad, sinkpad);
1068                         audio.pad = sinkpad;
1069                         _this->m_audioStreams.push_back(audio);
1070
1071                         if ( _this->m_audioStreams.size() == 1 )
1072                         {
1073                                 _this->selectAudioStream(0);
1074                                 gst_element_set_state (_this->m_gst_pipeline, GST_STATE_PLAYING);
1075                         }
1076                         else
1077                                 g_object_set (G_OBJECT (switch_audio), "select-all", FALSE, NULL);
1078                 }
1079                 else
1080                 {
1081                         gst_pad_link(pad, gst_element_get_static_pad(gst_bin_get_by_name(pipeline,"queue_audio"), "sink"));
1082                         _this->m_audioStreams.push_back(audio);
1083                 }
1084         }
1085         if (g_strrstr(type,"video"))
1086         {
1087                 gst_pad_link(pad, gst_element_get_static_pad(gst_bin_get_by_name(pipeline,"queue_video"), "sink"));
1088         }
1089         if (g_strrstr(type,"application/x-ssa") || g_strrstr(type,"application/x-ass"))
1090         {
1091                 GstPad *switchpad = _this->gstCreateSubtitleSink(_this, stSSA);
1092                 gst_pad_link(pad, switchpad);
1093                 subtitleStream subs;
1094                 subs.pad = switchpad;
1095                 subs.type = stSSA;
1096                 _this->m_subtitleStreams.push_back(subs);
1097         }
1098         if (g_strrstr(type,"text/plain"))
1099         {
1100                 GstPad *switchpad = _this->gstCreateSubtitleSink(_this, stPlainText);
1101                 gst_pad_link(pad, switchpad);
1102                 subtitleStream subs;
1103                 subs.pad = switchpad;
1104                 subs.type = stPlainText;
1105                 _this->m_subtitleStreams.push_back(subs);
1106         }
1107 }
1108
1109 GstPad* eServiceMP3::gstCreateSubtitleSink(eServiceMP3* _this, subtype_t type)
1110 {
1111         GstBin *pipeline = GST_BIN(_this->m_gst_pipeline);
1112         GstElement *switch_subparse = gst_bin_get_by_name(pipeline,"switch_subparse");
1113         if ( !switch_subparse )
1114         {
1115                 switch_subparse = gst_element_factory_make ("input-selector", "switch_subparse");
1116                 GstElement *sink = gst_element_factory_make("fakesink", "sink_subtitles");
1117                 gst_bin_add_many(pipeline, switch_subparse, sink, NULL);
1118                 gst_element_link(switch_subparse, sink);
1119                 g_object_set (G_OBJECT(sink), "signal-handoffs", TRUE, NULL);
1120                 g_object_set (G_OBJECT(sink), "sync", TRUE, NULL);
1121                 g_object_set (G_OBJECT(sink), "async", FALSE, NULL);
1122                 g_signal_connect(sink, "handoff", G_CALLBACK(_this->gstCBsubtitleAvail), _this);
1123
1124                 // order is essential since requested sink pad names can't be explicitely chosen
1125                 GstElement *switch_substream_plain = gst_element_factory_make ("input-selector", "switch_substream_plain");
1126                 gst_bin_add(pipeline, switch_substream_plain);
1127                 GstPad *sinkpad_plain = gst_element_get_request_pad (switch_subparse, "sink%d");
1128                 gst_pad_link(gst_element_get_pad (switch_substream_plain, "src"), sinkpad_plain);
1129
1130                 GstElement *switch_substream_ssa = gst_element_factory_make ("input-selector", "switch_substream_ssa");
1131                 GstElement *ssaparse = gst_element_factory_make("ssaparse", "ssaparse");
1132                 gst_bin_add_many(pipeline, switch_substream_ssa, ssaparse, NULL);
1133                 GstPad *sinkpad_ssa = gst_element_get_request_pad (switch_subparse, "sink%d");
1134                 gst_element_link(switch_substream_ssa, ssaparse);
1135                 gst_pad_link(gst_element_get_pad (ssaparse, "src"), sinkpad_ssa);
1136
1137                 GstElement *switch_substream_srt = gst_element_factory_make ("input-selector", "switch_substream_srt");
1138                 GstElement *srtparse = gst_element_factory_make("subparse", "srtparse");
1139                 gst_bin_add_many(pipeline, switch_substream_srt, srtparse, NULL);
1140                 GstPad *sinkpad_srt = gst_element_get_request_pad (switch_subparse, "sink%d");
1141                 gst_element_link(switch_substream_srt, srtparse);
1142                 gst_pad_link(gst_element_get_pad (srtparse, "src"), sinkpad_srt);
1143                 g_object_set (G_OBJECT(srtparse), "subtitle-encoding", "ISO-8859-15", NULL);
1144         }
1145
1146         switch (type)
1147         {
1148                 case stSSA:
1149                         return gst_element_get_request_pad (gst_bin_get_by_name(pipeline,"switch_substream_ssa"), "sink%d");
1150                 case stSRT:
1151                         return gst_element_get_request_pad (gst_bin_get_by_name(pipeline,"switch_substream_srt"), "sink%d");
1152                 case stPlainText:
1153                 default:
1154                         break;
1155         }
1156         return gst_element_get_request_pad (gst_bin_get_by_name(pipeline,"switch_substream_plain"), "sink%d");
1157 }
1158
1159 void eServiceMP3::gstCBfilterPadAdded(GstElement *filter, GstPad *pad, gpointer user_data)
1160 {
1161         eServiceMP3 *_this = (eServiceMP3*)user_data;
1162         GstElement *decoder = gst_bin_get_by_name(GST_BIN(_this->m_gst_pipeline),"decoder");
1163         gst_pad_link(pad, gst_element_get_static_pad (decoder, "sink"));
1164 }
1165
1166 void eServiceMP3::gstCBnewPad(GstElement *decodebin, GstPad *pad, gboolean last, gpointer user_data)
1167 {
1168         eServiceMP3 *_this = (eServiceMP3*)user_data;
1169         GstCaps *caps;
1170         GstStructure *str;
1171         GstPad *audiopad;
1172
1173         /* only link once */
1174         GstElement *audiobin = gst_bin_get_by_name(GST_BIN(_this->m_gst_pipeline),"audiobin");
1175         audiopad = gst_element_get_static_pad (audiobin, "sink");
1176         if ( !audiopad || GST_PAD_IS_LINKED (audiopad)) {
1177                 eDebug("audio already linked!");
1178                 g_object_unref (audiopad);
1179                 return;
1180         }
1181
1182         /* check media type */
1183         caps = gst_pad_get_caps (pad);
1184         str = gst_caps_get_structure (caps, 0);
1185         eDebug("gst new pad! %s", gst_structure_get_name (str));
1186
1187         if (!g_strrstr (gst_structure_get_name (str), "audio")) {
1188                 gst_caps_unref (caps);
1189                 gst_object_unref (audiopad);
1190                 return;
1191         }
1192
1193         gst_caps_unref (caps);
1194         gst_pad_link (pad, audiopad);
1195 }
1196
1197 void eServiceMP3::gstCBunknownType(GstElement *decodebin, GstPad *pad, GstCaps *caps, gpointer user_data)
1198 {
1199         GstStructure *str;
1200
1201         /* check media type */
1202         caps = gst_pad_get_caps (pad);
1203         str = gst_caps_get_structure (caps, 0);
1204         eDebug("unknown type: %s - this can't be decoded.", gst_structure_get_name (str));
1205         gst_caps_unref (caps);
1206 }
1207
1208 void eServiceMP3::gstPoll(const int&)
1209 {
1210                 /* ok, we have a serious problem here. gstBusSyncHandler sends
1211                    us the wakup signal, but likely before it was posted.
1212                    the usleep, an EVIL HACK (DON'T DO THAT!!!) works around this.
1213
1214                    I need to understand the API a bit more to make this work
1215                    proplerly. */
1216         usleep(1);
1217
1218         GstBus *bus = gst_pipeline_get_bus (GST_PIPELINE (m_gst_pipeline));
1219         GstMessage *message;
1220         while ((message = gst_bus_pop (bus)))
1221         {
1222                 gstBusCall(bus, message);
1223                 gst_message_unref (message);
1224         }
1225 }
1226
1227 eAutoInitPtr<eServiceFactoryMP3> init_eServiceFactoryMP3(eAutoInitNumbers::service+1, "eServiceFactoryMP3");
1228
1229 void eServiceMP3::gstCBsubtitleAvail(GstElement *element, GstBuffer *buffer, GstPad *pad, gpointer user_data)
1230 {
1231         gint64 duration_ns = GST_BUFFER_DURATION(buffer);
1232         const unsigned char *text = (unsigned char *)GST_BUFFER_DATA(buffer);
1233         eDebug("gstCBsubtitleAvail: %s",text);
1234         eServiceMP3 *_this = (eServiceMP3*)user_data;
1235         if ( _this->m_subtitle_widget )
1236         {
1237                 ePangoSubtitlePage page;
1238                 gRGB rgbcol(0xD0,0xD0,0xD0);
1239                 page.m_elements.push_back(ePangoSubtitlePageElement(rgbcol, (const char*)text));
1240                 page.m_timeout = duration_ns / 1000000;
1241                 (_this->m_subtitle_widget)->setPage(page);
1242         }
1243 }
1244
1245 RESULT eServiceMP3::enableSubtitles(eWidget *parent, ePyObject tuple)
1246 {
1247         ePyObject entry;
1248         int tuplesize = PyTuple_Size(tuple);
1249         int pid;
1250         int type;
1251         gint nb_sources;
1252         GstPad *active_pad;
1253         GstElement *switch_substream = NULL;
1254         GstElement *switch_subparse = gst_bin_get_by_name (GST_BIN(m_gst_pipeline), "switch_subparse");
1255
1256         if (!PyTuple_Check(tuple))
1257                 goto error_out;
1258         if (tuplesize < 1)
1259                 goto error_out;
1260         entry = PyTuple_GET_ITEM(tuple, 1);
1261         if (!PyInt_Check(entry))
1262                 goto error_out;
1263         pid = PyInt_AsLong(entry);
1264         entry = PyTuple_GET_ITEM(tuple, 2);
1265         if (!PyInt_Check(entry))
1266                 goto error_out;
1267         type = PyInt_AsLong(entry);
1268
1269         switch ((subtype_t)type)
1270         {
1271                 case stPlainText:
1272                         switch_substream = gst_bin_get_by_name(GST_BIN(m_gst_pipeline),"switch_substream_plain");
1273                         break;
1274                 case stSSA:
1275                         switch_substream = gst_bin_get_by_name(GST_BIN(m_gst_pipeline),"switch_substream_ssa");
1276                         break;
1277                 case stSRT:
1278                         switch_substream = gst_bin_get_by_name(GST_BIN(m_gst_pipeline),"switch_substream_srt");
1279                         break;
1280                 default:
1281                         goto error_out;
1282         }
1283
1284         m_subtitle_widget = new eSubtitleWidget(parent);
1285         m_subtitle_widget->resize(parent->size()); /* full size */
1286
1287         if ( !switch_substream )
1288         {
1289                 eDebug("can't switch subtitle tracks! gst-plugin-selector needed");
1290                 return -2;
1291         }
1292         g_object_get (G_OBJECT (switch_substream), "n-pads", &nb_sources, NULL);
1293         if ( (unsigned int)pid >= m_subtitleStreams.size() || pid >= nb_sources || (unsigned int)m_currentSubtitleStream >= m_subtitleStreams.size() )
1294                 return -2;
1295         g_object_get (G_OBJECT (switch_subparse), "n-pads", &nb_sources, NULL);
1296         if ( type < 0 || type >= nb_sources )
1297                 return -2;
1298
1299         char sinkpad[6];
1300         sprintf(sinkpad, "sink%d", type);
1301         g_object_set (G_OBJECT (switch_subparse), "active-pad", gst_element_get_pad (switch_subparse, sinkpad), NULL);
1302         sprintf(sinkpad, "sink%d", pid);
1303         g_object_set (G_OBJECT (switch_substream), "active-pad", gst_element_get_pad (switch_substream, sinkpad), NULL);
1304         m_currentSubtitleStream = pid;
1305
1306         return 0;
1307 error_out:
1308         eDebug("enableSubtitles needs a tuple as 2nd argument!\n"
1309                 "for gst subtitles (2, subtitle_stream_count, subtitle_type)");
1310         return -1;
1311 }
1312
1313 RESULT eServiceMP3::disableSubtitles(eWidget *parent)
1314 {
1315         eDebug("eServiceMP3::disableSubtitles");
1316         delete m_subtitle_widget;
1317         m_subtitle_widget = 0;
1318         return 0;
1319 }
1320
1321 PyObject *eServiceMP3::getCachedSubtitle()
1322 {
1323         eDebug("eServiceMP3::getCachedSubtitle");
1324         Py_RETURN_NONE;
1325 }
1326
1327 PyObject *eServiceMP3::getSubtitleList()
1328 {
1329         eDebug("eServiceMP3::getSubtitleList");
1330
1331         ePyObject l = PyList_New(0);
1332         int stream_count[sizeof(subtype_t)];
1333         for ( int i = 0; i < sizeof(subtype_t); i++ )
1334                 stream_count[i] = 0;
1335
1336         for (std::vector<subtitleStream>::iterator IterSubtitleStream(m_subtitleStreams.begin()); IterSubtitleStream != m_subtitleStreams.end(); ++IterSubtitleStream)
1337         {
1338                 subtype_t type = IterSubtitleStream->type;
1339                 ePyObject tuple = PyTuple_New(5);
1340                 PyTuple_SET_ITEM(tuple, 0, PyInt_FromLong(2));
1341                 PyTuple_SET_ITEM(tuple, 1, PyInt_FromLong(stream_count[type]));
1342                 PyTuple_SET_ITEM(tuple, 2, PyInt_FromLong(int(type)));
1343                 PyTuple_SET_ITEM(tuple, 3, PyInt_FromLong(0));
1344                 PyTuple_SET_ITEM(tuple, 4, PyString_FromString((IterSubtitleStream->language_code).c_str()));
1345                 PyList_Append(l, tuple);
1346                 Py_DECREF(tuple);
1347                 stream_count[type]++;
1348         }
1349         return l;
1350 }
1351
1352 #else
1353 #warning gstreamer not available, not building media player
1354 #endif