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                 sc->addServiceFactory(eServiceFactoryMP3::id, this, extensions);
  41         }
  42
  43         m_service_info = new eStaticServiceMP3Info();
  44 }
  45
  46 eServiceFactoryMP3::~eServiceFactoryMP3()
  47 {
  48         ePtr<eServiceCenter> sc;
  49
  50         eServiceCenter::getPrivInstance(sc);
  51         if (sc)
  52                 sc->removeServiceFactory(eServiceFactoryMP3::id);
  53 }
  54
  55 DEFINE_REF(eServiceFactoryMP3)
  56
  57         // iServiceHandler
  58 RESULT eServiceFactoryMP3::play(const eServiceReference &ref, ePtr<iPlayableService> &ptr)
  59 {
  60                 // check resources...
  61         ptr = new eServiceMP3(ref.path.c_str());
  62         return 0;
  63 }
  64
  65 RESULT eServiceFactoryMP3::record(const eServiceReference &ref, ePtr<iRecordableService> &ptr)
  66 {
  67         ptr=0;
  68         return -1;
  69 }
  70
  71 RESULT eServiceFactoryMP3::list(const eServiceReference &, ePtr<iListableService> &ptr)
  72 {
  73         ptr=0;
  74         return -1;
  75 }
  76
  77 RESULT eServiceFactoryMP3::info(const eServiceReference &ref, ePtr<iStaticServiceInformation> &ptr)
  78 {
  79         ptr = m_service_info;
  80         return 0;
  81 }
  82
  83 class eMP3ServiceOfflineOperations: public iServiceOfflineOperations
  84 {
  85         DECLARE_REF(eMP3ServiceOfflineOperations);
  86         eServiceReference m_ref;
  87 public:
  88         eMP3ServiceOfflineOperations(const eServiceReference &ref);
  89
  90         RESULT deleteFromDisk(int simulate);
  91         RESULT getListOfFilenames(std::list<std::string> &);
  92 };
  93
  94 DEFINE_REF(eMP3ServiceOfflineOperations);
  95
  96 eMP3ServiceOfflineOperations::eMP3ServiceOfflineOperations(const eServiceReference &ref): m_ref((const eServiceReference&)ref)
  97 {
  98 }
  99
 100 RESULT eMP3ServiceOfflineOperations::deleteFromDisk(int simulate)
 101 {
 102         if (simulate)
 103                 return 0;
 104         else
 105         {
 106                 std::list<std::string> res;
 107                 if (getListOfFilenames(res))
 108                         return -1;
 109
 110                 eBackgroundFileEraser *eraser = eBackgroundFileEraser::getInstance();
 111                 if (!eraser)
 112                         eDebug("FATAL !! can't get background file eraser");
 113
 114                 for (std::list<std::string>::iterator i(res.begin()); i != res.end(); ++i)
 115                 {
 116                         eDebug("Removing %s...", i->c_str());
 117                         if (eraser)
 118                                 eraser->erase(i->c_str());
 119                         else
 120                                 ::unlink(i->c_str());
 121                 }
 122
 123                 return 0;
 124         }
 125 }
 126
 127 RESULT eMP3ServiceOfflineOperations::getListOfFilenames(std::list<std::string> &res)
 128 {
 129         res.clear();
 130         res.push_back(m_ref.path);
 131         return 0;
 132 }
 133
 134
 135 RESULT eServiceFactoryMP3::offlineOperations(const eServiceReference &ref, ePtr<iServiceOfflineOperations> &ptr)
 136 {
 137         ptr = new eMP3ServiceOfflineOperations(ref);
 138         return 0;
 139 }
 140
 141 // eStaticServiceMP3Info
 142
 143
 144 // eStaticServiceMP3Info is seperated from eServiceMP3 to give information
 145 // about unopened files.
 146
 147 // probably eServiceMP3 should use this class as well, and eStaticServiceMP3Info
 148 // should have a database backend where ID3-files etc. are cached.
 149 // this would allow listing the mp3 database based on certain filters.
 150
 151 DEFINE_REF(eStaticServiceMP3Info)
 152
 153 eStaticServiceMP3Info::eStaticServiceMP3Info()
 154 {
 155 }
 156
 157 RESULT eStaticServiceMP3Info::getName(const eServiceReference &ref, std::string &name)
 158 {
 159         size_t last = ref.path.rfind('/');
 160         if (last != std::string::npos)
 161                 name = ref.path.substr(last+1);
 162         else
 163                 name = ref.path;
 164         return 0;
 165 }
 166
 167 int eStaticServiceMP3Info::getLength(const eServiceReference &ref)
 168 {
 169         return -1;
 170 }
 171
 172 // eServiceMP3
 173
 174 eServiceMP3::eServiceMP3(const char *filename): m_filename(filename), m_pump(eApp, 1)
 175 {
 176         m_stream_tags = 0;
 177         m_audioStreams.clear();
 178         m_subtitleStreams.clear();
 179         m_currentAudioStream = 0;
 180         m_currentSubtitleStream = 0;
 181         m_subtitle_widget = 0;
 182         m_currentTrickRatio = 0;
 183         CONNECT(m_seekTimeout.timeout, eServiceMP3::seekTimeoutCB);
 184         CONNECT(m_pump.recv_msg, eServiceMP3::gstPoll);
 185         GstElement *source = 0;
 186
 187         GstElement *decoder = 0, *conv = 0, *flt = 0, *sink = 0; /* for audio */
 188
 189         GstElement *audio = 0, *switch_audio = 0, *queue_audio = 0, *video = 0, *queue_video = 0, *videodemux = 0;
 190
 191         m_state = stIdle;
 192         eDebug("SERVICEMP3 construct!");
 193
 194                 /* FIXME: currently, decodebin isn't possible for
 195                    video streams. in that case, make a manual pipeline. */
 196
 197         const char *ext = strrchr(filename, '.');
 198         if (!ext)
 199                 ext = filename;
 200
 201         int is_mpeg_ps = !(strcasecmp(ext, ".mpeg") && strcasecmp(ext, ".mpg") && strcasecmp(ext, ".vob") && strcasecmp(ext, ".bin") && strcasecmp(ext, ".dat"));
 202         int is_mpeg_ts = !strcasecmp(ext, ".ts");
 203         int is_matroska = !strcasecmp(ext, ".mkv");
 204         int is_avi = !strcasecmp(ext, ".avi");
 205         int is_mp3 = !strcasecmp(ext, ".mp3"); /* force mp3 instead of decodebin */
 206         int is_video = is_mpeg_ps || is_mpeg_ts || is_matroska || is_avi;
 207         int is_streaming = !strncmp(filename, "http://", 7);
 208         int is_AudioCD = !(strncmp(filename, "/autofs/", 8) || strncmp(filename+strlen(filename)-13, "/track-", 7) || strcasecmp(ext, ".wav"));
 209         int is_VCD = !strcasecmp(ext, ".dat");
 210
 211         eDebug("filename: %s, is_mpeg_ps: %d, is_mpeg_ts: %d, is_video: %d, is_streaming: %d, is_mp3: %d, is_matroska: %d, is_avi: %d, is_AudioCD: %d, is_VCD: %d", filename, is_mpeg_ps, is_mpeg_ts, is_video, is_streaming, is_mp3, is_matroska, is_avi, is_AudioCD, is_VCD);
 212
 213         int is_audio = !is_video;
 214
 215         int all_ok = 0;
 216
 217         m_gst_pipeline = gst_pipeline_new ("mediaplayer");
 218         if (!m_gst_pipeline)
 219                 eWarning("failed to create pipeline");
 220
 221         if (is_AudioCD)
 222         {
 223                 source = gst_element_factory_make ("cdiocddasrc", "cda-source");
 224                 if (source)
 225                         g_object_set (G_OBJECT (source), "device", "/dev/cdroms/cdrom0", NULL);
 226                 else
 227                         is_AudioCD = 0;
 228         }
 229         if ( !is_streaming && !is_AudioCD )
 230                 source = gst_element_factory_make ("filesrc", "file-source");
 231         else if ( is_streaming )
 232         {
 233                 source = gst_element_factory_make ("neonhttpsrc", "http-source");
 234                 if (source)
 235                         g_object_set (G_OBJECT (source), "automatic-redirect", TRUE, NULL);
 236         }
 237
 238         if (!source)
 239                 eWarning("failed to create %s", is_streaming ? "neonhttpsrc" : "filesrc");
 240                                 /* configure source */
 241         else if (!is_AudioCD)
 242                 g_object_set (G_OBJECT (source), "location", filename, NULL);
 243         else
 244         {
 245                 int track = atoi(filename+18);
 246                 eDebug("play audio CD track #%i",track);
 247                 if (track > 0)
 248                         g_object_set (G_OBJECT (source), "track", track, NULL);
 249         }
 250
 251         if (is_audio)
 252         {
 253                         /* filesrc -> decodebin -> audioconvert -> capsfilter -> alsasink */
 254                 const char *decodertype = "decodebin";
 255
 256                 decoder = gst_element_factory_make (decodertype, "decoder");
 257                 if (!decoder)
 258                         eWarning("failed to create %s decoder", decodertype);
 259
 260                 conv = gst_element_factory_make ("audioconvert", "converter");
 261                 if (!conv)
 262                         eWarning("failed to create audioconvert");
 263
 264                 flt = gst_element_factory_make ("capsfilter", "flt");
 265                 if (!flt)
 266                         eWarning("failed to create capsfilter");
 267
 268                         /* for some reasons, we need to set the sample format to depth/width=16, because auto negotiation doesn't work. */
 269                         /* endianness, however, is not required to be set anymore. */
 270                 if (flt)
 271                 {
 272                         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, */(char*)0);
 273                         g_object_set (G_OBJECT (flt), "caps", caps, (char*)0);
 274                         gst_caps_unref(caps);
 275                 }
 276
 277                 sink = gst_element_factory_make ("alsasink", "alsa-output");
 278                 if (!sink)
 279                         eWarning("failed to create osssink");
 280
 281                 if (source && decoder && conv && sink)
 282                         all_ok = 1;
 283         } else /* is_video */
 284         {
 285                         /* filesrc -> mpegdemux -> | queue_audio -> dvbaudiosink
 286                                                    | queue_video -> dvbvideosink */
 287
 288                 audio = gst_element_factory_make("dvbaudiosink", "audiosink");
 289                 queue_audio = gst_element_factory_make("queue", "queue_audio");
 290
 291                 video = gst_element_factory_make("dvbvideosink", "videosink");
 292                 queue_video = gst_element_factory_make("queue", "queue_video");
 293
 294                 if (is_mpeg_ps)
 295                         videodemux = gst_element_factory_make("flupsdemux", "videodemux");
 296                 else if (is_mpeg_ts)
 297                         videodemux = gst_element_factory_make("flutsdemux", "videodemux");
 298                 else if (is_matroska)
 299                         videodemux = gst_element_factory_make("matroskademux", "videodemux");
 300                 else if (is_avi)
 301                         videodemux = gst_element_factory_make("avidemux", "videodemux");
 302
 303                 if (!videodemux)
 304                 {
 305                         eDebug("fluendo mpegdemux not available, falling back to mpegdemux\n");
 306                         videodemux = gst_element_factory_make("mpegdemux", "videodemux");
 307                 }
 308
 309                 eDebug("audio: %p, queue_audio %p, video %p, queue_video %p, videodemux %p", audio, queue_audio, video, queue_video, videodemux);
 310                 if (audio && queue_audio && video && queue_video && videodemux)
 311                 {
 312                         g_object_set (G_OBJECT (queue_audio), "max-size-bytes", 256*1024, NULL);
 313                         g_object_set (G_OBJECT (queue_audio), "max-size-buffers", 0, NULL);
 314                         g_object_set (G_OBJECT (queue_audio), "max-size-time", (guint64)0, NULL);
 315                         g_object_set (G_OBJECT (queue_video), "max-size-buffers", 0, NULL);
 316                         g_object_set (G_OBJECT (queue_video), "max-size-bytes", 2*1024*1024, NULL);
 317                         g_object_set (G_OBJECT (queue_video), "max-size-time", (guint64)0, NULL);
 318                         all_ok = 1;
 319                 }
 320         }
 321
 322         if (m_gst_pipeline && all_ok)
 323         {
 324                 gst_bus_set_sync_handler(gst_pipeline_get_bus (GST_PIPELINE (m_gst_pipeline)), gstBusSyncHandler, this);
 325
 326                 if (is_AudioCD)
 327                 {
 328                         queue_audio = gst_element_factory_make("queue", "queue_audio");
 329                         g_object_set (G_OBJECT (sink), "preroll-queue-len", 80, NULL);
 330                         gst_bin_add_many (GST_BIN (m_gst_pipeline), source, queue_audio, conv, sink, NULL);
 331                         gst_element_link_many(source, queue_audio, conv, sink, NULL);
 332                 }
 333                 else if (is_audio)
 334                 {
 335                         queue_audio = gst_element_factory_make("queue", "queue_audio");
 336
 337                         g_signal_connect (decoder, "new-decoded-pad", G_CALLBACK(gstCBnewPad), this);
 338                         g_signal_connect (decoder, "unknown-type", G_CALLBACK(gstCBunknownType), this);
 339
 340                         if (!is_mp3)
 341                                 g_object_set (G_OBJECT (sink), "preroll-queue-len", 80, NULL);
 342
 343                                 /* gst_bin will take the 'floating references' */
 344                         gst_bin_add_many (GST_BIN (m_gst_pipeline),
 345                                                 source, queue_audio, decoder, NULL);
 346
 347                                 /* in decodebin's case we can just connect the source with the decodebin, and decodebin will take care about id3demux (or whatever is required) */
 348                         gst_element_link_many(source, queue_audio, decoder, NULL);
 349
 350                                 /* create audio bin with the audioconverter, the capsfilter and the audiosink */
 351                         audio = gst_bin_new ("audiobin");
 352
 353                         GstPad *audiopad = gst_element_get_static_pad (conv, "sink");
 354                         gst_bin_add_many(GST_BIN(audio), conv, flt, sink, (char*)0);
 355                         gst_element_link_many(conv, flt, sink, (char*)0);
 356                         gst_element_add_pad(audio, gst_ghost_pad_new ("sink", audiopad));
 357                         gst_object_unref(audiopad);
 358                         gst_bin_add (GST_BIN(m_gst_pipeline), audio);
 359                                 /* in mad's case, we can directly connect the decoder to the audiobin. otherwise, we do this in gstCBnewPad */
 360                         if (is_mp3)
 361                                 gst_element_link(decoder, audio);
 362
 363                 } else /* is_video */
 364                 {
 365                         char srt_filename[strlen(filename)+1];
 366                         strncpy(srt_filename,filename,strlen(filename)-3);
 367                         srt_filename[strlen(filename)-3]='\0';
 368                         strcat(srt_filename, "srt");
 369                         struct stat buffer;
 370                         if (stat(srt_filename, &buffer) == 0)
 371                         {
 372                                 eDebug("subtitle file found: %s",srt_filename);
 373                                 GstElement *subsource = gst_element_factory_make ("filesrc", "srt_source");
 374                                 g_object_set (G_OBJECT (subsource), "location", srt_filename, NULL);
 375                                 gst_bin_add(GST_BIN (m_gst_pipeline), subsource);
 376                                 GstPad *switchpad = gstCreateSubtitleSink(this, stSRT);
 377                                 gst_pad_link(gst_element_get_pad (subsource, "src"), switchpad);
 378                                 subtitleStream subs;
 379                                 subs.pad = switchpad;
 380                                 subs.type = stSRT;
 381                                 subs.language_code = std::string("und");
 382                                 m_subtitleStreams.push_back(subs);
 383                         }
 384                         gst_bin_add_many(GST_BIN(m_gst_pipeline), source, videodemux, audio, queue_audio, video, queue_video, NULL);
 385                         switch_audio = gst_element_factory_make ("input-selector", "switch_audio");
 386                         if (switch_audio)
 387                         {
 388                                 g_object_set (G_OBJECT (switch_audio), "select-all", TRUE, NULL);
 389                                 gst_bin_add(GST_BIN(m_gst_pipeline), switch_audio);
 390                                 gst_element_link(switch_audio, queue_audio);
 391                         }
 392
 393                         if (is_VCD)
 394                         {
 395                                 GstElement *cdxaparse = gst_element_factory_make("cdxaparse", "cdxaparse");
 396                                 gst_bin_add(GST_BIN(m_gst_pipeline), cdxaparse);
 397                                 gst_element_link(source, cdxaparse);
 398                                 gst_element_link(cdxaparse, videodemux);
 399                         }
 400                         else
 401                                 gst_element_link(source, videodemux);
 402                         gst_element_link(queue_audio, audio);
 403                         gst_element_link(queue_video, video);
 404                         g_signal_connect(videodemux, "pad-added", G_CALLBACK (gstCBpadAdded), this);
 405                 }
 406         } else
 407         {
 408                 if (m_gst_pipeline)
 409                         gst_object_unref(GST_OBJECT(m_gst_pipeline));
 410                 if (source)
 411                         gst_object_unref(GST_OBJECT(source));
 412                 if (decoder)
 413                         gst_object_unref(GST_OBJECT(decoder));
 414                 if (conv)
 415                         gst_object_unref(GST_OBJECT(conv));
 416                 if (sink)
 417                         gst_object_unref(GST_OBJECT(sink));
 418
 419                 if (audio)
 420                         gst_object_unref(GST_OBJECT(audio));
 421                 if (queue_audio)
 422                         gst_object_unref(GST_OBJECT(queue_audio));
 423                 if (video)
 424                         gst_object_unref(GST_OBJECT(video));
 425                 if (queue_video)
 426                         gst_object_unref(GST_OBJECT(queue_video));
 427                 if (videodemux)
 428                         gst_object_unref(GST_OBJECT(videodemux));
 429                 if (switch_audio)
 430                         gst_object_unref(GST_OBJECT(switch_audio));
 431
 432                 eDebug("sorry, can't play.");
 433                 m_gst_pipeline = 0;
 434         }
 435
 436         gst_element_set_state (m_gst_pipeline, GST_STATE_PLAYING);
 437 }
 438
 439 eServiceMP3::~eServiceMP3()
 440 {
 441         delete m_subtitle_widget;
 442         if (m_state == stRunning)
 443                 stop();
 444
 445         if (m_stream_tags)
 446                 gst_tag_list_free(m_stream_tags);
 447
 448         if (m_gst_pipeline)
 449         {
 450                 gst_object_unref (GST_OBJECT (m_gst_pipeline));
 451                 eDebug("SERVICEMP3 destruct!");
 452         }
 453 }
 454
 455 DEFINE_REF(eServiceMP3);
 456
 457 RESULT eServiceMP3::connectEvent(const Slot2<void,iPlayableService*,int> &event, ePtr<eConnection> &connection)
 458 {
 459         connection = new eConnection((iPlayableService*)this, m_event.connect(event));
 460         return 0;
 461 }
 462
 463 RESULT eServiceMP3::start()
 464 {
 465         assert(m_state == stIdle);
 466
 467         m_state = stRunning;
 468         if (m_gst_pipeline)
 469         {
 470                 eDebug("starting pipeline");
 471                 gst_element_set_state (m_gst_pipeline, GST_STATE_PLAYING);
 472         }
 473         m_event(this, evStart);
 474         return 0;
 475 }
 476
 477 RESULT eServiceMP3::stop()
 478 {
 479         assert(m_state != stIdle);
 480         if (m_state == stStopped)
 481                 return -1;
 482         eDebug("MP3: %s stop\n", m_filename.c_str());
 483         gst_element_set_state(m_gst_pipeline, GST_STATE_NULL);
 484         m_state = stStopped;
 485         return 0;
 486 }
 487
 488 RESULT eServiceMP3::setTarget(int target)
 489 {
 490         return -1;
 491 }
 492
 493 RESULT eServiceMP3::pause(ePtr<iPauseableService> &ptr)
 494 {
 495         ptr=this;
 496         return 0;
 497 }
 498
 499 RESULT eServiceMP3::setSlowMotion(int ratio)
 500 {
 501         /* we can't do slomo yet */
 502         return -1;
 503 }
 504
 505 RESULT eServiceMP3::setFastForward(int ratio)
 506 {
 507         m_currentTrickRatio = ratio;
 508         if (ratio)
 509                 m_seekTimeout.start(1000, 0);
 510         else
 511                 m_seekTimeout.stop();
 512         return 0;
 513 }
 514
 515 void eServiceMP3::seekTimeoutCB()
 516 {
 517         pts_t ppos, len;
 518         getPlayPosition(ppos);
 519         getLength(len);
 520         ppos += 90000*m_currentTrickRatio;
 521
 522         if (ppos < 0)
 523         {
 524                 ppos = 0;
 525                 m_seekTimeout.stop();
 526         }
 527         if (ppos > len)
 528         {
 529                 ppos = 0;
 530                 stop();
 531                 m_seekTimeout.stop();
 532                 return;
 533         }
 534         seekTo(ppos);
 535 }
 536
 537                 // iPausableService
 538 RESULT eServiceMP3::pause()
 539 {
 540         if (!m_gst_pipeline)
 541                 return -1;
 542         GstStateChangeReturn res = gst_element_set_state(m_gst_pipeline, GST_STATE_PAUSED);
 543         if (res == GST_STATE_CHANGE_ASYNC)
 544         {
 545                 pts_t ppos;
 546                 getPlayPosition(ppos);
 547                 seekTo(ppos);
 548         }
 549         return 0;
 550 }
 551
 552 RESULT eServiceMP3::unpause()
 553 {
 554         if (!m_gst_pipeline)
 555                 return -1;
 556
 557         GstStateChangeReturn res;
 558         res = gst_element_set_state(m_gst_pipeline, GST_STATE_PLAYING);
 559         return 0;
 560 }
 561
 562         /* iSeekableService */
 563 RESULT eServiceMP3::seek(ePtr<iSeekableService> &ptr)
 564 {
 565         ptr = this;
 566         return 0;
 567 }
 568
 569 RESULT eServiceMP3::getLength(pts_t &pts)
 570 {
 571         if (!m_gst_pipeline)
 572                 return -1;
 573         if (m_state != stRunning)
 574                 return -1;
 575
 576         GstFormat fmt = GST_FORMAT_TIME;
 577         gint64 len;
 578
 579         if (!gst_element_query_duration(m_gst_pipeline, &fmt, &len))
 580                 return -1;
 581
 582                 /* len is in nanoseconds. we have 90 000 pts per second. */
 583
 584         pts = len / 11111;
 585         return 0;
 586 }
 587
 588 RESULT eServiceMP3::seekTo(pts_t to)
 589 {
 590         if (!m_gst_pipeline)
 591                 return -1;
 592
 593                 /* convert pts to nanoseconds */
 594         gint64 time_nanoseconds = to * 11111LL;
 595         if (!gst_element_seek (m_gst_pipeline, 1.0, GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH,
 596                 GST_SEEK_TYPE_SET, time_nanoseconds,
 597                 GST_SEEK_TYPE_NONE, GST_CLOCK_TIME_NONE))
 598         {
 599                 eDebug("SEEK failed");
 600                 return -1;
 601         }
 602         return 0;
 603 }
 604
 605 RESULT eServiceMP3::seekRelative(int direction, pts_t to)
 606 {
 607         if (!m_gst_pipeline)
 608                 return -1;
 609
 610         pts_t ppos;
 611         getPlayPosition(ppos);
 612         ppos += to * direction;
 613         if (ppos < 0)
 614                 ppos = 0;
 615         seekTo(ppos);
 616
 617         return 0;
 618 }
 619
 620 RESULT eServiceMP3::getPlayPosition(pts_t &pts)
 621 {
 622         if (!m_gst_pipeline)
 623                 return -1;
 624         if (m_state != stRunning)
 625                 return -1;
 626
 627         GstFormat fmt = GST_FORMAT_TIME;
 628         gint64 len;
 629
 630         if (!gst_element_query_position(m_gst_pipeline, &fmt, &len))
 631                 return -1;
 632
 633                 /* len is in nanoseconds. we have 90 000 pts per second. */
 634         pts = len / 11111;
 635         return 0;
 636 }
 637
 638 RESULT eServiceMP3::setTrickmode(int trick)
 639 {
 640                 /* trickmode is not yet supported by our dvbmediasinks. */
 641         return -1;
 642 }
 643
 644 RESULT eServiceMP3::isCurrentlySeekable()
 645 {
 646         return 1;
 647 }
 648
 649 RESULT eServiceMP3::info(ePtr<iServiceInformation>&i)
 650 {
 651         i = this;
 652         return 0;
 653 }
 654
 655 RESULT eServiceMP3::getName(std::string &name)
 656 {
 657         name = m_filename;
 658         size_t n = name.rfind('/');
 659         if (n != std::string::npos)
 660                 name = name.substr(n + 1);
 661         return 0;
 662 }
 663
 664 int eServiceMP3::getInfo(int w)
 665 {
 666         gchar *tag = 0;
 667
 668         switch (w)
 669         {
 670         case sTitle:
 671         case sArtist:
 672         case sAlbum:
 673         case sComment:
 674         case sTracknumber:
 675         case sGenre:
 676         case sVideoType:
 677         case sTimeCreate:
 678         case sUser+12:
 679                 return resIsString;
 680         case sCurrentTitle:
 681                 tag = GST_TAG_TRACK_NUMBER;
 682                 break;
 683         case sTotalTitles:
 684                 tag = GST_TAG_TRACK_COUNT;
 685                 break;
 686         default:
 687                 return resNA;
 688         }
 689
 690         if (!m_stream_tags || !tag)
 691                 return 0;
 692
 693         guint value;
 694         if (gst_tag_list_get_uint(m_stream_tags, tag, &value))
 695                 return (int) value;
 696
 697         return 0;
 698
 699 }
 700
 701 std::string eServiceMP3::getInfoString(int w)
 702 {
 703         if ( !m_stream_tags )
 704                 return "";
 705         gchar *tag = 0;
 706         switch (w)
 707         {
 708         case sTitle:
 709                 tag = GST_TAG_TITLE;
 710                 break;
 711         case sArtist:
 712                 tag = GST_TAG_ARTIST;
 713                 break;
 714         case sAlbum:
 715                 tag = GST_TAG_ALBUM;
 716                 break;
 717         case sComment:
 718                 tag = GST_TAG_COMMENT;
 719                 break;
 720         case sTracknumber:
 721                 tag = GST_TAG_TRACK_NUMBER;
 722                 break;
 723         case sGenre:
 724                 tag = GST_TAG_GENRE;
 725                 break;
 726         case sVideoType:
 727                 tag = GST_TAG_VIDEO_CODEC;
 728                 break;
 729         case sTimeCreate:
 730                 GDate *date;
 731                 if (gst_tag_list_get_date(m_stream_tags, GST_TAG_DATE, &date))
 732                 {
 733                         gchar res[5];
 734                         g_date_strftime (res, sizeof(res), "%Y", date);
 735                         return (std::string)res;
 736                 }
 737                 break;
 738         case sUser+12:
 739                 return m_error_message;
 740         default:
 741                 return "";
 742         }
 743         if ( !tag )
 744                 return "";
 745         gchar *value;
 746         if (gst_tag_list_get_string(m_stream_tags, tag, &value))
 747         {
 748                 std::string res = value;
 749                 g_free(value);
 750                 return res;
 751         }
 752         return "";
 753 }
 754
 755 RESULT eServiceMP3::audioChannel(ePtr<iAudioChannelSelection> &ptr)
 756 {
 757         ptr = this;
 758         return 0;
 759 }
 760
 761 RESULT eServiceMP3::audioTracks(ePtr<iAudioTrackSelection> &ptr)
 762 {
 763         ptr = this;
 764         return 0;
 765 }
 766
 767 RESULT eServiceMP3::subtitle(ePtr<iSubtitleOutput> &ptr)
 768 {
 769         ptr = this;
 770         return 0;
 771 }
 772
 773 int eServiceMP3::getNumberOfTracks()
 774 {
 775         return m_audioStreams.size();
 776 }
 777
 778 int eServiceMP3::getCurrentTrack()
 779 {
 780         return m_currentAudioStream;
 781 }
 782
 783 RESULT eServiceMP3::selectTrack(unsigned int i)
 784 {
 785         int ret = selectAudioStream(i);
 786         /* flush */
 787         pts_t ppos;
 788         getPlayPosition(ppos);
 789         seekTo(ppos);
 790
 791         return ret;
 792 }
 793
 794 int eServiceMP3::selectAudioStream(int i)
 795 {
 796         gint nb_sources;
 797         GstPad *active_pad;
 798         GstElement *switch_audio = gst_bin_get_by_name(GST_BIN(m_gst_pipeline),"switch_audio");
 799         if ( !switch_audio )
 800         {
 801                 eDebug("can't switch audio tracks! gst-plugin-selector needed");
 802                 return -1;
 803         }
 804         g_object_get (G_OBJECT (switch_audio), "n-pads", &nb_sources, NULL);
 805         if ( (unsigned int)i >= m_audioStreams.size() || i >= nb_sources || (unsigned int)m_currentAudioStream >= m_audioStreams.size() )
 806                 return -2;
 807         char sinkpad[8];
 808         sprintf(sinkpad, "sink%d", i);
 809         g_object_set (G_OBJECT (switch_audio), "active-pad", gst_element_get_pad (switch_audio, sinkpad), NULL);
 810         g_object_get (G_OBJECT (switch_audio), "active-pad", &active_pad, NULL);
 811         gchar *name;
 812         name = gst_pad_get_name (active_pad);
 813         eDebug ("switched audio to (%s)", name);
 814         g_free(name);
 815         m_currentAudioStream = i;
 816         return 0;
 817 }
 818
 819 int eServiceMP3::getCurrentChannel()
 820 {
 821         return STEREO;
 822 }
 823
 824 RESULT eServiceMP3::selectChannel(int i)
 825 {
 826         eDebug("eServiceMP3::selectChannel(%i)",i);
 827         return 0;
 828 }
 829
 830 RESULT eServiceMP3::getTrackInfo(struct iAudioTrackInfo &info, unsigned int i)
 831 {
 832 //      eDebug("eServiceMP3::getTrackInfo(&info, %i)",i);
 833         if (i >= m_audioStreams.size())
 834                 return -2;
 835         if (m_audioStreams[i].type == atMPEG)
 836                 info.m_description = "MPEG";
 837         else if (m_audioStreams[i].type == atMP3)
 838                 info.m_description = "MP3";
 839         else if (m_audioStreams[i].type == atAC3)
 840                 info.m_description = "AC3";
 841         else if (m_audioStreams[i].type == atAAC)
 842                 info.m_description = "AAC";
 843         else if (m_audioStreams[i].type == atDTS)
 844                 info.m_description = "DTS";
 845         else if (m_audioStreams[i].type == atPCM)
 846                 info.m_description = "PCM";
 847         else if (m_audioStreams[i].type == atOGG)
 848                 info.m_description = "OGG";
 849         else
 850                 info.m_description = "???";
 851         if (info.m_language.empty())
 852                 info.m_language = m_audioStreams[i].language_code;
 853         return 0;
 854 }
 855
 856 void eServiceMP3::gstBusCall(GstBus *bus, GstMessage *msg)
 857 {
 858         if (!msg)
 859                 return;
 860         gchar *sourceName;
 861         GstObject *source;
 862
 863         source = GST_MESSAGE_SRC(msg);
 864         sourceName = gst_object_get_name(source);
 865 #if 0
 866         if (gst_message_get_structure(msg))
 867         {
 868                 gchar *string = gst_structure_to_string(gst_message_get_structure(msg));
 869                 eDebug("gst_message from %s: %s", sourceName, string);
 870                 g_free(string);
 871         }
 872         else
 873                 eDebug("gst_message from %s: %s (without structure)", sourceName, GST_MESSAGE_TYPE_NAME(msg));
 874 #endif
 875         switch (GST_MESSAGE_TYPE (msg))
 876         {
 877         case GST_MESSAGE_EOS:
 878                 m_event((iPlayableService*)this, evEOF);
 879                 break;
 880         case GST_MESSAGE_ERROR:
 881         {
 882                 gchar *debug;
 883                 GError *err;
 884
 885                 gst_message_parse_error (msg, &err, &debug);
 886                 g_free (debug);
 887                 eWarning("Gstreamer error: %s (%i)", err->message, err->code );
 888                 if ( err->domain == GST_STREAM_ERROR && err->code == GST_STREAM_ERROR_DECODE )
 889                 {
 890                         if ( g_strrstr(sourceName, "videosink") )
 891                                 m_event((iPlayableService*)this, evUser+11);
 892                 }
 893                 g_error_free(err);
 894                         /* TODO: signal error condition to user */
 895                 break;
 896         }
 897         case GST_MESSAGE_TAG:
 898         {
 899                 GstTagList *tags, *result;
 900                 gst_message_parse_tag(msg, &tags);
 901
 902                 result = gst_tag_list_merge(m_stream_tags, tags, GST_TAG_MERGE_PREPEND);
 903                 if (result)
 904                 {
 905                         if (m_stream_tags)
 906                                 gst_tag_list_free(m_stream_tags);
 907                         m_stream_tags = result;
 908                 }
 909
 910                 gchar *g_audiocodec;
 911                 if ( gst_tag_list_get_string(tags, GST_TAG_AUDIO_CODEC, &g_audiocodec) && m_audioStreams.size() == 0 )
 912                 {
 913                         GstPad* pad = gst_element_get_pad (GST_ELEMENT(source), "src");
 914                         GstCaps* caps = gst_pad_get_caps(pad);
 915                         GstStructure* str = gst_caps_get_structure(caps, 0);
 916                         if ( !str )
 917                                 break;
 918                         audioStream audio;
 919                         audio.type = gstCheckAudioPad(str);
 920                         m_audioStreams.push_back(audio);
 921                 }
 922
 923                 gst_tag_list_free(tags);
 924                 m_event((iPlayableService*)this, evUpdatedInfo);
 925                 break;
 926         }
 927         case GST_MESSAGE_ASYNC_DONE:
 928         {
 929                 GstTagList *tags;
 930                 for (std::vector<audioStream>::iterator IterAudioStream(m_audioStreams.begin()); IterAudioStream != m_audioStreams.end(); ++IterAudioStream)
 931                 {
 932                         if ( IterAudioStream->pad )
 933                         {
 934                                 g_object_get(IterAudioStream->pad, "tags", &tags, NULL);
 935                                 gchar *g_language;
 936                                 if ( gst_is_tag_list(tags) && gst_tag_list_get_string(tags, GST_TAG_LANGUAGE_CODE, &g_language) )
 937                                 {
 938                                         eDebug("found audio language %s",g_language);
 939                                         IterAudioStream->language_code = std::string(g_language);
 940                                         g_free (g_language);
 941                                 }
 942                         }
 943                 }
 944                 for (std::vector<subtitleStream>::iterator IterSubtitleStream(m_subtitleStreams.begin()); IterSubtitleStream != m_subtitleStreams.end(); ++IterSubtitleStream)
 945                 {
 946                         if ( IterSubtitleStream->pad )
 947                         {
 948                                 g_object_get(IterSubtitleStream->pad, "tags", &tags, NULL);
 949                                 gchar *g_language;
 950                                 if ( gst_is_tag_list(tags) && gst_tag_list_get_string(tags, GST_TAG_LANGUAGE_CODE, &g_language) )
 951                                 {
 952                                         eDebug("found subtitle language %s",g_language);
 953                                         IterSubtitleStream->language_code = std::string(g_language);
 954                                         g_free (g_language);
 955                                 }
 956                         }
 957                 }
 958         }
 959         case GST_MESSAGE_ELEMENT:
 960         {
 961                 if ( gst_is_missing_plugin_message(msg) )
 962                 {
 963                         gchar *description = gst_missing_plugin_message_get_description(msg);
 964                         if ( description )
 965                         {
 966                                 m_error_message = description;
 967                                 g_free(description);
 968                                 m_event((iPlayableService*)this, evUser+12);
 969                         }
 970                 }
 971         }
 972         default:
 973                 break;
 974         }
 975         g_free (sourceName);
 976 }
 977
 978 GstBusSyncReply eServiceMP3::gstBusSyncHandler(GstBus *bus, GstMessage *message, gpointer user_data)
 979 {
 980         eServiceMP3 *_this = (eServiceMP3*)user_data;
 981         _this->m_pump.send(1);
 982                 /* wake */
 983         return GST_BUS_PASS;
 984 }
 985
 986 audiotype_t eServiceMP3::gstCheckAudioPad(GstStructure* structure)
 987 {
 988         const gchar* type;
 989         type = gst_structure_get_name(structure);
 990
 991         if (!strcmp(type, "audio/mpeg")) {
 992                         gint mpegversion, layer = 0;
 993                         gst_structure_get_int (structure, "mpegversion", &mpegversion);
 994                         gst_structure_get_int (structure, "layer", &layer);
 995                         eDebug("mime audio/mpeg version %d layer %d", mpegversion, layer);
 996                         switch (mpegversion) {
 997                                 case 1:
 998                                 {
 999                                         if ( layer == 3 )
1000                                                 return atMP3;
1001                                         else
1002                                                 return atMPEG;
1003                                 }
1004                                 case 2:
1005                                         return atMPEG;
1006                                 case 4:
1007                                         return atAAC;
1008                                 default:
1009                                         return atUnknown;
1010                         }
1011                 }
1012         else
1013         {
1014                 eDebug("mime %s", type);
1015                 if (!strcmp(type, "audio/x-ac3") || !strcmp(type, "audio/ac3"))
1016                         return atAC3;
1017                 else if (!strcmp(type, "audio/x-dts") || !strcmp(type, "audio/dts"))
1018                         return atDTS;
1019                 else if (!strcmp(type, "audio/x-raw-int"))
1020                         return atPCM;
1021         }
1022         return atUnknown;
1023 }
1024
1025 void eServiceMP3::gstCBpadAdded(GstElement *decodebin, GstPad *pad, gpointer user_data)
1026 {
1027         const gchar* type;
1028         GstCaps* caps;
1029         GstStructure* str;
1030         caps = gst_pad_get_caps(pad);
1031         str = gst_caps_get_structure(caps, 0);
1032         type = gst_structure_get_name(str);
1033
1034         eDebug("A new pad %s:%s was created", GST_OBJECT_NAME (decodebin), GST_OBJECT_NAME (pad));
1035
1036         eServiceMP3 *_this = (eServiceMP3*)user_data;
1037         GstBin *pipeline = GST_BIN(_this->m_gst_pipeline);
1038         if (g_strrstr(type,"audio"))
1039         {
1040                 audioStream audio;
1041                 audio.type = _this->gstCheckAudioPad(str);
1042                 GstElement *switch_audio = gst_bin_get_by_name(pipeline , "switch_audio");
1043                 if ( switch_audio )
1044                 {
1045                         GstPad *sinkpad = gst_element_get_request_pad (switch_audio, "sink%d");
1046                         gst_pad_link(pad, sinkpad);
1047                         audio.pad = sinkpad;
1048                         _this->m_audioStreams.push_back(audio);
1049
1050                         if ( _this->m_audioStreams.size() == 1 )
1051                         {
1052                                 _this->selectAudioStream(0);
1053                                 gst_element_set_state (_this->m_gst_pipeline, GST_STATE_PLAYING);
1054                         }
1055                         else
1056                                 g_object_set (G_OBJECT (switch_audio), "select-all", FALSE, NULL);
1057                 }
1058                 else
1059                 {
1060                         gst_pad_link(pad, gst_element_get_static_pad(gst_bin_get_by_name(pipeline,"queue_audio"), "sink"));
1061                         _this->m_audioStreams.push_back(audio);
1062                 }
1063         }
1064         if (g_strrstr(type,"video"))
1065         {
1066                 gst_pad_link(pad, gst_element_get_static_pad(gst_bin_get_by_name(pipeline,"queue_video"), "sink"));
1067         }
1068         if (g_strrstr(type,"application/x-ssa") || g_strrstr(type,"application/x-ass"))
1069         {
1070                 GstPad *switchpad = _this->gstCreateSubtitleSink(_this, stSSA);
1071                 gst_pad_link(pad, switchpad);
1072                 subtitleStream subs;
1073                 subs.pad = switchpad;
1074                 subs.type = stSSA;
1075                 _this->m_subtitleStreams.push_back(subs);
1076         }
1077         if (g_strrstr(type,"text/plain"))
1078         {
1079                 GstPad *switchpad = _this->gstCreateSubtitleSink(_this, stPlainText);
1080                 gst_pad_link(pad, switchpad);
1081                 subtitleStream subs;
1082                 subs.pad = switchpad;
1083                 subs.type = stPlainText;
1084                 _this->m_subtitleStreams.push_back(subs);
1085         }
1086 }
1087
1088 GstPad* eServiceMP3::gstCreateSubtitleSink(eServiceMP3* _this, subtype_t type)
1089 {
1090         GstBin *pipeline = GST_BIN(_this->m_gst_pipeline);
1091         GstElement *switch_subparse = gst_bin_get_by_name(pipeline,"switch_subparse");
1092         if ( !switch_subparse )
1093         {
1094                 switch_subparse = gst_element_factory_make ("input-selector", "switch_subparse");
1095                 GstElement *sink = gst_element_factory_make("fakesink", "sink_subtitles");
1096                 gst_bin_add_many(pipeline, switch_subparse, sink, NULL);
1097                 gst_element_link(switch_subparse, sink);
1098                 g_object_set (G_OBJECT(sink), "signal-handoffs", TRUE, NULL);
1099                 g_object_set (G_OBJECT(sink), "sync", TRUE, NULL);
1100                 g_object_set (G_OBJECT(sink), "async", FALSE, NULL);
1101                 g_signal_connect(sink, "handoff", G_CALLBACK(_this->gstCBsubtitleAvail), _this);
1102
1103                 // order is essential since requested sink pad names can't be explicitely chosen
1104                 GstElement *switch_substream_plain = gst_element_factory_make ("input-selector", "switch_substream_plain");
1105                 gst_bin_add(pipeline, switch_substream_plain);
1106                 GstPad *sinkpad_plain = gst_element_get_request_pad (switch_subparse, "sink%d");
1107                 gst_pad_link(gst_element_get_pad (switch_substream_plain, "src"), sinkpad_plain);
1108
1109                 GstElement *switch_substream_ssa = gst_element_factory_make ("input-selector", "switch_substream_ssa");
1110                 GstElement *ssaparse = gst_element_factory_make("ssaparse", "ssaparse");
1111                 gst_bin_add_many(pipeline, switch_substream_ssa, ssaparse, NULL);
1112                 GstPad *sinkpad_ssa = gst_element_get_request_pad (switch_subparse, "sink%d");
1113                 gst_element_link(switch_substream_ssa, ssaparse);
1114                 gst_pad_link(gst_element_get_pad (ssaparse, "src"), sinkpad_ssa);
1115
1116                 GstElement *switch_substream_srt = gst_element_factory_make ("input-selector", "switch_substream_srt");
1117                 GstElement *srtparse = gst_element_factory_make("subparse", "srtparse");
1118                 gst_bin_add_many(pipeline, switch_substream_srt, srtparse, NULL);
1119                 GstPad *sinkpad_srt = gst_element_get_request_pad (switch_subparse, "sink%d");
1120                 gst_element_link(switch_substream_srt, srtparse);
1121                 gst_pad_link(gst_element_get_pad (srtparse, "src"), sinkpad_srt);
1122                 g_object_set (G_OBJECT(srtparse), "subtitle-encoding", "ISO-8859-15", NULL);
1123         }
1124
1125         switch (type)
1126         {
1127                 case stSSA:
1128                         return gst_element_get_request_pad (gst_bin_get_by_name(pipeline,"switch_substream_ssa"), "sink%d");
1129                 case stSRT:
1130                         return gst_element_get_request_pad (gst_bin_get_by_name(pipeline,"switch_substream_srt"), "sink%d");
1131                 case stPlainText:
1132                 default:
1133                         break;
1134         }
1135         return gst_element_get_request_pad (gst_bin_get_by_name(pipeline,"switch_substream_plain"), "sink%d");
1136 }
1137
1138 void eServiceMP3::gstCBfilterPadAdded(GstElement *filter, GstPad *pad, gpointer user_data)
1139 {
1140         eServiceMP3 *_this = (eServiceMP3*)user_data;
1141         GstElement *decoder = gst_bin_get_by_name(GST_BIN(_this->m_gst_pipeline),"decoder");
1142         gst_pad_link(pad, gst_element_get_static_pad (decoder, "sink"));
1143 }
1144
1145 void eServiceMP3::gstCBnewPad(GstElement *decodebin, GstPad *pad, gboolean last, gpointer user_data)
1146 {
1147         eServiceMP3 *_this = (eServiceMP3*)user_data;
1148         GstCaps *caps;
1149         GstStructure *str;
1150         GstPad *audiopad;
1151
1152         /* only link once */
1153         GstElement *audiobin = gst_bin_get_by_name(GST_BIN(_this->m_gst_pipeline),"audiobin");
1154         audiopad = gst_element_get_static_pad (audiobin, "sink");
1155         if ( !audiopad || GST_PAD_IS_LINKED (audiopad)) {
1156                 eDebug("audio already linked!");
1157                 g_object_unref (audiopad);
1158                 return;
1159         }
1160
1161         /* check media type */
1162         caps = gst_pad_get_caps (pad);
1163         str = gst_caps_get_structure (caps, 0);
1164         eDebug("gst new pad! %s", gst_structure_get_name (str));
1165
1166         if (!g_strrstr (gst_structure_get_name (str), "audio")) {
1167                 gst_caps_unref (caps);
1168                 gst_object_unref (audiopad);
1169                 return;
1170         }
1171
1172         gst_caps_unref (caps);
1173         gst_pad_link (pad, audiopad);
1174 }
1175
1176 void eServiceMP3::gstCBunknownType(GstElement *decodebin, GstPad *pad, GstCaps *caps, gpointer user_data)
1177 {
1178         GstStructure *str;
1179
1180         /* check media type */
1181         caps = gst_pad_get_caps (pad);
1182         str = gst_caps_get_structure (caps, 0);
1183         eDebug("unknown type: %s - this can't be decoded.", gst_structure_get_name (str));
1184         gst_caps_unref (caps);
1185 }
1186
1187 void eServiceMP3::gstPoll(const int&)
1188 {
1189                 /* ok, we have a serious problem here. gstBusSyncHandler sends
1190                    us the wakup signal, but likely before it was posted.
1191                    the usleep, an EVIL HACK (DON'T DO THAT!!!) works around this.
1192
1193                    I need to understand the API a bit more to make this work
1194                    proplerly. */
1195         usleep(1);
1196
1197         GstBus *bus = gst_pipeline_get_bus (GST_PIPELINE (m_gst_pipeline));
1198         GstMessage *message;
1199         while ((message = gst_bus_pop (bus)))
1200         {
1201                 gstBusCall(bus, message);
1202                 gst_message_unref (message);
1203         }
1204 }
1205
1206 eAutoInitPtr<eServiceFactoryMP3> init_eServiceFactoryMP3(eAutoInitNumbers::service+1, "eServiceFactoryMP3");
1207
1208 void eServiceMP3::gstCBsubtitleAvail(GstElement *element, GstBuffer *buffer, GstPad *pad, gpointer user_data)
1209 {
1210         gint64 duration_ns = GST_BUFFER_DURATION(buffer);
1211         const unsigned char *text = (unsigned char *)GST_BUFFER_DATA(buffer);
1212         eDebug("gstCBsubtitleAvail: %s",text);
1213         eServiceMP3 *_this = (eServiceMP3*)user_data;
1214         if ( _this->m_subtitle_widget )
1215         {
1216                 ePangoSubtitlePage page;
1217                 gRGB rgbcol(0xD0,0xD0,0xD0);
1218                 page.m_elements.push_back(ePangoSubtitlePageElement(rgbcol, (const char*)text));
1219                 page.m_timeout = duration_ns / 1000000;
1220                 (_this->m_subtitle_widget)->setPage(page);
1221         }
1222 }
1223
1224 RESULT eServiceMP3::enableSubtitles(eWidget *parent, ePyObject tuple)
1225 {
1226         ePyObject entry;
1227         int tuplesize = PyTuple_Size(tuple);
1228         int pid;
1229         int type;
1230         gint nb_sources;
1231         GstPad *active_pad;
1232         GstElement *switch_substream = NULL;
1233         GstElement *switch_subparse = gst_bin_get_by_name (GST_BIN(m_gst_pipeline), "switch_subparse");
1234
1235         if (!PyTuple_Check(tuple))
1236                 goto error_out;
1237         if (tuplesize < 1)
1238                 goto error_out;
1239         entry = PyTuple_GET_ITEM(tuple, 1);
1240         if (!PyInt_Check(entry))
1241                 goto error_out;
1242         pid = PyInt_AsLong(entry);
1243         entry = PyTuple_GET_ITEM(tuple, 2);
1244         if (!PyInt_Check(entry))
1245                 goto error_out;
1246         type = PyInt_AsLong(entry);
1247
1248         switch ((subtype_t)type)
1249         {
1250                 case stPlainText:
1251                         switch_substream = gst_bin_get_by_name(GST_BIN(m_gst_pipeline),"switch_substream_plain");
1252                         break;
1253                 case stSSA:
1254                         switch_substream = gst_bin_get_by_name(GST_BIN(m_gst_pipeline),"switch_substream_ssa");
1255                         break;
1256                 case stSRT:
1257                         switch_substream = gst_bin_get_by_name(GST_BIN(m_gst_pipeline),"switch_substream_srt");
1258                         break;
1259                 default:
1260                         goto error_out;
1261         }
1262
1263         m_subtitle_widget = new eSubtitleWidget(parent);
1264         m_subtitle_widget->resize(parent->size()); /* full size */
1265
1266         if ( !switch_substream )
1267         {
1268                 eDebug("can't switch subtitle tracks! gst-plugin-selector needed");
1269                 return -2;
1270         }
1271         g_object_get (G_OBJECT (switch_substream), "n-pads", &nb_sources, NULL);
1272         if ( (unsigned int)pid >= m_subtitleStreams.size() || pid >= nb_sources || (unsigned int)m_currentSubtitleStream >= m_subtitleStreams.size() )
1273                 return -2;
1274         g_object_get (G_OBJECT (switch_subparse), "n-pads", &nb_sources, NULL);
1275         if ( type < 0 || type >= nb_sources )
1276                 return -2;
1277
1278         char sinkpad[6];
1279         sprintf(sinkpad, "sink%d", type);
1280         g_object_set (G_OBJECT (switch_subparse), "active-pad", gst_element_get_pad (switch_subparse, sinkpad), NULL);
1281         sprintf(sinkpad, "sink%d", pid);
1282         g_object_set (G_OBJECT (switch_substream), "active-pad", gst_element_get_pad (switch_substream, sinkpad), NULL);
1283         m_currentSubtitleStream = pid;
1284
1285         return 0;
1286 error_out:
1287         eDebug("enableSubtitles needs a tuple as 2nd argument!\n"
1288                 "for gst subtitles (2, subtitle_stream_count, subtitle_type)");
1289         return -1;
1290 }
1291
1292 RESULT eServiceMP3::disableSubtitles(eWidget *parent)
1293 {
1294         eDebug("eServiceMP3::disableSubtitles");
1295         delete m_subtitle_widget;
1296         m_subtitle_widget = 0;
1297         return 0;
1298 }
1299
1300 PyObject *eServiceMP3::getCachedSubtitle()
1301 {
1302         eDebug("eServiceMP3::getCachedSubtitle");
1303         Py_RETURN_NONE;
1304 }
1305
1306 PyObject *eServiceMP3::getSubtitleList()
1307 {
1308         eDebug("eServiceMP3::getSubtitleList");
1309
1310         ePyObject l = PyList_New(0);
1311         int stream_count[sizeof(subtype_t)];
1312         for ( int i = 0; i < sizeof(subtype_t); i++ )
1313                 stream_count[i] = 0;
1314
1315         for (std::vector<subtitleStream>::iterator IterSubtitleStream(m_subtitleStreams.begin()); IterSubtitleStream != m_subtitleStreams.end(); ++IterSubtitleStream)
1316         {
1317                 subtype_t type = IterSubtitleStream->type;
1318                 ePyObject tuple = PyTuple_New(5);
1319                 PyTuple_SET_ITEM(tuple, 0, PyInt_FromLong(2));
1320                 PyTuple_SET_ITEM(tuple, 1, PyInt_FromLong(stream_count[type]));
1321                 PyTuple_SET_ITEM(tuple, 2, PyInt_FromLong(int(type)));
1322                 PyTuple_SET_ITEM(tuple, 3, PyInt_FromLong(0));
1323                 PyTuple_SET_ITEM(tuple, 4, PyString_FromString((IterSubtitleStream->language_code).c_str()));
1324                 PyList_Append(l, tuple);
1325                 Py_DECREF(tuple);
1326                 stream_count[type]++;
1327         }
1328         return l;
1329 }
1330
1331 #else
1332 #warning gstreamer not available, not building media player
1333 #endif