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("mp2");
  31                 extensions.push_back("mp3");
  32                 extensions.push_back("ogg");
  33                 extensions.push_back("mpg");
  34                 extensions.push_back("vob");
  35                 extensions.push_back("wav");
  36                 extensions.push_back("wave");
  37                 extensions.push_back("mkv");
  38                 extensions.push_back("avi");
  39                 extensions.push_back("divx");
  40                 extensions.push_back("dat");
  41                 extensions.push_back("flac");
  42                 extensions.push_back("mp4");
  43                 extensions.push_back("m4a");
  44                 sc->addServiceFactory(eServiceFactoryMP3::id, this, extensions);
  45         }
  46
  47         m_service_info = new eStaticServiceMP3Info();
  48 }
  49
  50 eServiceFactoryMP3::~eServiceFactoryMP3()
  51 {
  52         ePtr<eServiceCenter> sc;
  53
  54         eServiceCenter::getPrivInstance(sc);
  55         if (sc)
  56                 sc->removeServiceFactory(eServiceFactoryMP3::id);
  57 }
  58
  59 DEFINE_REF(eServiceFactoryMP3)
  60
  61         // iServiceHandler
  62 RESULT eServiceFactoryMP3::play(const eServiceReference &ref, ePtr<iPlayableService> &ptr)
  63 {
  64                 // check resources...
  65         ptr = new eServiceMP3(ref.path.c_str());
  66         return 0;
  67 }
  68
  69 RESULT eServiceFactoryMP3::record(const eServiceReference &ref, ePtr<iRecordableService> &ptr)
  70 {
  71         ptr=0;
  72         return -1;
  73 }
  74
  75 RESULT eServiceFactoryMP3::list(const eServiceReference &, ePtr<iListableService> &ptr)
  76 {
  77         ptr=0;
  78         return -1;
  79 }
  80
  81 RESULT eServiceFactoryMP3::info(const eServiceReference &ref, ePtr<iStaticServiceInformation> &ptr)
  82 {
  83         ptr = m_service_info;
  84         return 0;
  85 }
  86
  87 class eMP3ServiceOfflineOperations: public iServiceOfflineOperations
  88 {
  89         DECLARE_REF(eMP3ServiceOfflineOperations);
  90         eServiceReference m_ref;
  91 public:
  92         eMP3ServiceOfflineOperations(const eServiceReference &ref);
  93
  94         RESULT deleteFromDisk(int simulate);
  95         RESULT getListOfFilenames(std::list<std::string> &);
  96 };
  97
  98 DEFINE_REF(eMP3ServiceOfflineOperations);
  99
 100 eMP3ServiceOfflineOperations::eMP3ServiceOfflineOperations(const eServiceReference &ref): m_ref((const eServiceReference&)ref)
 101 {
 102 }
 103
 104 RESULT eMP3ServiceOfflineOperations::deleteFromDisk(int simulate)
 105 {
 106         if (simulate)
 107                 return 0;
 108         else
 109         {
 110                 std::list<std::string> res;
 111                 if (getListOfFilenames(res))
 112                         return -1;
 113
 114                 eBackgroundFileEraser *eraser = eBackgroundFileEraser::getInstance();
 115                 if (!eraser)
 116                         eDebug("FATAL !! can't get background file eraser");
 117
 118                 for (std::list<std::string>::iterator i(res.begin()); i != res.end(); ++i)
 119                 {
 120                         eDebug("Removing %s...", i->c_str());
 121                         if (eraser)
 122                                 eraser->erase(i->c_str());
 123                         else
 124                                 ::unlink(i->c_str());
 125                 }
 126
 127                 return 0;
 128         }
 129 }
 130
 131 RESULT eMP3ServiceOfflineOperations::getListOfFilenames(std::list<std::string> &res)
 132 {
 133         res.clear();
 134         res.push_back(m_ref.path);
 135         return 0;
 136 }
 137
 138
 139 RESULT eServiceFactoryMP3::offlineOperations(const eServiceReference &ref, ePtr<iServiceOfflineOperations> &ptr)
 140 {
 141         ptr = new eMP3ServiceOfflineOperations(ref);
 142         return 0;
 143 }
 144
 145 // eStaticServiceMP3Info
 146
 147
 148 // eStaticServiceMP3Info is seperated from eServiceMP3 to give information
 149 // about unopened files.
 150
 151 // probably eServiceMP3 should use this class as well, and eStaticServiceMP3Info
 152 // should have a database backend where ID3-files etc. are cached.
 153 // this would allow listing the mp3 database based on certain filters.
 154
 155 DEFINE_REF(eStaticServiceMP3Info)
 156
 157 eStaticServiceMP3Info::eStaticServiceMP3Info()
 158 {
 159 }
 160
 161 RESULT eStaticServiceMP3Info::getName(const eServiceReference &ref, std::string &name)
 162 {
 163         size_t last = ref.path.rfind('/');
 164         if (last != std::string::npos)
 165                 name = ref.path.substr(last+1);
 166         else
 167                 name = ref.path;
 168         return 0;
 169 }
 170
 171 int eStaticServiceMP3Info::getLength(const eServiceReference &ref)
 172 {
 173         return -1;
 174 }
 175
 176 // eServiceMP3
 177
 178 eServiceMP3::eServiceMP3(const char *filename): m_filename(filename), m_pump(eApp, 1)
 179 {
 180         m_seekTimeout = eTimer::create(eApp);
 181         m_stream_tags = 0;
 182         m_currentAudioStream = 0;
 183         m_currentSubtitleStream = 0;
 184         m_subtitle_widget = 0;
 185         m_currentTrickRatio = 0;
 186         CONNECT(m_seekTimeout->timeout, eServiceMP3::seekTimeoutCB);
 187         CONNECT(m_pump.recv_msg, eServiceMP3::gstPoll);
 188         GstElement *source = 0;
 189         GstElement *decoder = 0, *conv = 0, *flt = 0, *parser = 0, *sink = 0; /* for audio */
 190         GstElement *audio = 0, *switch_audio = 0, *queue_audio = 0, *video = 0, *queue_video = 0, *videodemux = 0, *audiodemux = 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         sourceinfo.is_video = FALSE;
 204         sourceinfo.audiotype = atUnknown;
 205         if ( (strcasecmp(ext, ".mpeg") && strcasecmp(ext, ".mpg") && strcasecmp(ext, ".vob") && strcasecmp(ext, ".bin") && strcasecmp(ext, ".dat") ) == 0 )
 206         {
 207                 sourceinfo.containertype = ctMPEGPS;
 208                 sourceinfo.is_video = TRUE;
 209         }
 210         else if ( strcasecmp(ext, ".ts") == 0 )
 211         {
 212                 sourceinfo.containertype = ctMPEGTS;
 213                 sourceinfo.is_video = TRUE;
 214         }
 215         else if ( strcasecmp(ext, ".mkv") == 0 )
 216         {
 217                 sourceinfo.containertype = ctMKV;
 218                 sourceinfo.is_video = TRUE;
 219         }
 220         else if ( strcasecmp(ext, ".avi") == 0 || strcasecmp(ext, ".divx") == 0)
 221         {
 222                 sourceinfo.containertype = ctAVI;
 223                 sourceinfo.is_video = TRUE;
 224         }
 225         else if ( strcasecmp(ext, ".mp4") == 0 )
 226         {
 227                 sourceinfo.containertype = ctMP4;
 228                 sourceinfo.is_video = TRUE;
 229         }
 230         else if ( strcasecmp(ext, ".m4a") == 0 )
 231         {
 232                 sourceinfo.containertype = ctMP4;
 233                 sourceinfo.audiotype = atAAC;
 234         }
 235         else if ( strcasecmp(ext, ".mp3") == 0 )
 236                 sourceinfo.audiotype = atMP3;
 237         else if ( (strncmp(filename, "/autofs/", 8) || strncmp(filename+strlen(filename)-13, "/track-", 7) || strcasecmp(ext, ".wav")) == 0 )
 238                 sourceinfo.containertype = ctCDA;
 239         if ( strcasecmp(ext, ".dat") == 0 )
 240         {
 241                 sourceinfo.containertype = ctVCD;
 242                 sourceinfo.is_video = TRUE;
 243         }
 244         if ( (strncmp(filename, "http://", 7)) == 0 )
 245                 sourceinfo.is_streaming = TRUE;
 246
 247         eDebug("filename=%s, containertype=%d, is_video=%d, is_streaming=%d", filename, sourceinfo.containertype, sourceinfo.is_video, sourceinfo.is_streaming);
 248
 249         int all_ok = 0;
 250
 251         m_gst_pipeline = gst_pipeline_new ("mediaplayer");
 252         if (!m_gst_pipeline)
 253                 m_error_message = "failed to create GStreamer pipeline!\n";
 254
 255         if ( sourceinfo.is_streaming )
 256         {
 257                 eDebug("play webradio!");
 258                 source = gst_element_factory_make ("neonhttpsrc", "http-source");
 259                 if (source)
 260                 {
 261                         g_object_set (G_OBJECT (source), "location", filename, NULL);
 262                         g_object_set (G_OBJECT (source), "automatic-redirect", TRUE, NULL);
 263                 }
 264                 else
 265                         m_error_message = "GStreamer plugin neonhttpsrc not available!\n";
 266         }
 267         else if ( sourceinfo.containertype == ctCDA )
 268         {
 269                 source = gst_element_factory_make ("cdiocddasrc", "cda-source");
 270                 if (source)
 271                 {
 272                         g_object_set (G_OBJECT (source), "device", "/dev/cdroms/cdrom0", NULL);
 273                         int track = atoi(filename+18);
 274                         eDebug("play audio CD track #%i",track);
 275                         if (track > 0)
 276                                 g_object_set (G_OBJECT (source), "track", track, NULL);
 277                 }
 278         }
 279         else if ( sourceinfo.containertype == ctVCD )
 280         {
 281                 int fd = open(filename,O_RDONLY);
 282                 char tmp[128*1024];
 283                 int ret = read(fd, tmp, 128*1024);
 284                 close(fd);
 285                 if ( ret == -1 ) // this is a "REAL" VCD
 286                         source = gst_element_factory_make ("vcdsrc", "vcd-source");
 287                         if (source)
 288                                 g_object_set (G_OBJECT (source), "device", "/dev/cdroms/cdrom0", NULL);
 289         }
 290         if ( !source && !sourceinfo.is_streaming )
 291         {
 292                 source = gst_element_factory_make ("filesrc", "file-source");
 293                 if (source)
 294                         g_object_set (G_OBJECT (source), "location", filename, NULL);
 295                 else
 296                         m_error_message = "GStreamer can't open filesrc " + (std::string)filename + "!\n";
 297         }
 298         if ( sourceinfo.is_video )
 299         {
 300                         /* filesrc -> mpegdemux -> | queue_audio -> dvbaudiosink
 301                                                    | queue_video -> dvbvideosink */
 302
 303                 audio = gst_element_factory_make("dvbaudiosink", "audiosink");
 304                 if (!audio)
 305                         m_error_message += "failed to create Gstreamer element dvbaudiosink\n";
 306
 307                 video = gst_element_factory_make("dvbvideosink", "videosink");
 308                 if (!video)
 309                         m_error_message += "failed to create Gstreamer element dvbvideosink\n";
 310
 311                 queue_audio = gst_element_factory_make("queue", "queue_audio");
 312                 queue_video = gst_element_factory_make("queue", "queue_video");
 313
 314                 std::string demux_type;
 315                 switch (sourceinfo.containertype)
 316                 {
 317                         case ctMPEGTS:
 318                                 demux_type = "flutsdemux";
 319                                 break;
 320                         case ctMPEGPS:
 321                         case ctVCD:
 322                                 demux_type = "flupsdemux";
 323                                 break;
 324                         case ctMKV:
 325                                 demux_type = "matroskademux";
 326                                 break;
 327                         case ctAVI:
 328                                 demux_type = "avidemux";
 329                                 break;
 330                         case ctMP4:
 331                                 demux_type = "qtdemux";
 332                                 break;
 333                         default:
 334                                 break;
 335                 }
 336                 videodemux = gst_element_factory_make(demux_type.c_str(), "videodemux");
 337                 if (!videodemux)
 338                         m_error_message = "GStreamer plugin " + demux_type + " not available!\n";
 339
 340                 switch_audio = gst_element_factory_make ("input-selector", "switch_audio");
 341                 if (!switch_audio)
 342                         m_error_message = "GStreamer plugin input-selector not available!\n";
 343
 344                 if (audio && queue_audio && video && queue_video && videodemux && switch_audio)
 345                 {
 346                         g_object_set (G_OBJECT (queue_audio), "max-size-bytes", 256*1024, NULL);
 347                         g_object_set (G_OBJECT (queue_audio), "max-size-buffers", 0, NULL);
 348                         g_object_set (G_OBJECT (queue_audio), "max-size-time", (guint64)0, NULL);
 349                         g_object_set (G_OBJECT (queue_video), "max-size-buffers", 0, NULL);
 350                         g_object_set (G_OBJECT (queue_video), "max-size-bytes", 2*1024*1024, NULL);
 351                         g_object_set (G_OBJECT (queue_video), "max-size-time", (guint64)0, NULL);
 352                         g_object_set (G_OBJECT (switch_audio), "select-all", TRUE, NULL);
 353                         all_ok = 1;
 354                 }
 355         } else /* is audio */
 356         {
 357                 std::string demux_type;
 358                 switch ( sourceinfo.containertype )
 359                 {
 360                         case ctMP4:
 361                                 demux_type = "qtdemux";
 362                                 break;
 363                         default:
 364                                 break;
 365                 }
 366                 if ( demux_type.length() )
 367                 {
 368                         audiodemux = gst_element_factory_make(demux_type.c_str(), "audiodemux");
 369                         if (!audiodemux)
 370                                 m_error_message = "GStreamer plugin " + demux_type + " not available!\n";
 371                 }
 372                 switch ( sourceinfo.audiotype )
 373                 {
 374                         case atMP3:
 375                         {
 376                                 if ( !audiodemux )
 377                                 {
 378                                         parser = gst_element_factory_make("mp3parse", "audioparse");
 379                                         if (!parser)
 380                                         {
 381                                                 m_error_message += "failed to create Gstreamer element mp3parse\n";
 382                                                 break;
 383                                         }
 384                                 }
 385                                 sink = gst_element_factory_make("dvbaudiosink", "audiosink");
 386                                 if ( !sink )
 387                                         m_error_message += "failed to create Gstreamer element dvbaudiosink\n";
 388                                 else
 389                                         all_ok = 1;
 390                                 break;
 391                         }
 392                         case atAAC:
 393                         {
 394                                 if ( !audiodemux )
 395                                 {
 396                                         m_error_message += "cannot parse raw AAC audio\n";
 397                                         break;
 398                                 }
 399                                 sink = gst_element_factory_make("dvbaudiosink", "audiosink");
 400                                 if (!sink)
 401                                         m_error_message += "failed to create Gstreamer element dvbaudiosink\n";
 402                                 else
 403                                         all_ok = 1;
 404                                 break;
 405                         }
 406                         case atAC3:
 407                         {
 408                                 if ( !audiodemux )
 409                                 {
 410                                         m_error_message += "cannot parse raw AC3 audio\n";
 411                                         break;
 412                                 }
 413                                 sink = gst_element_factory_make("dvbaudiosink", "audiosink");
 414                                 if ( !sink )
 415                                         m_error_message += "failed to create Gstreamer element dvbaudiosink\n";
 416                                 else
 417                                         all_ok = 1;
 418                                 break;
 419                         }
 420                         default:
 421                         {       /* filesrc -> decodebin -> audioconvert -> capsfilter -> alsasink */
 422                                 decoder = gst_element_factory_make ("decodebin", "decoder");
 423                                 if (!decoder)
 424                                         m_error_message += "failed to create Gstreamer element decodebin\n";
 425
 426                                 conv = gst_element_factory_make ("audioconvert", "converter");
 427                                 if (!conv)
 428                                         m_error_message += "failed to create Gstreamer element audioconvert\n";
 429
 430                                 flt = gst_element_factory_make ("capsfilter", "flt");
 431                                 if (!flt)
 432                                         m_error_message += "failed to create Gstreamer element capsfilter\n";
 433
 434                                         /* for some reasons, we need to set the sample format to depth/width=16, because auto negotiation doesn't work. */
 435                                         /* endianness, however, is not required to be set anymore. */
 436                                 if (flt)
 437                                 {
 438                                         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);
 439                                         g_object_set (G_OBJECT (flt), "caps", caps, NULL);
 440                                         gst_caps_unref(caps);
 441                                 }
 442
 443                                 sink = gst_element_factory_make ("alsasink", "alsa-output");
 444                                 if (!sink)
 445                                         m_error_message += "failed to create Gstreamer element alsasink\n";
 446
 447                                 if (source && decoder && conv && sink)
 448                                         all_ok = 1;
 449                                 break;
 450                         }
 451                 }
 452
 453         }
 454         if (m_gst_pipeline && all_ok)
 455         {
 456                 gst_bus_set_sync_handler(gst_pipeline_get_bus (GST_PIPELINE (m_gst_pipeline)), gstBusSyncHandler, this);
 457
 458                 if ( sourceinfo.containertype == ctCDA )
 459                 {
 460                         queue_audio = gst_element_factory_make("queue", "queue_audio");
 461                         g_object_set (G_OBJECT (sink), "preroll-queue-len", 80, NULL);
 462                         gst_bin_add_many (GST_BIN (m_gst_pipeline), source, queue_audio, conv, sink, NULL);
 463                         gst_element_link_many(source, queue_audio, conv, sink, NULL);
 464                 }
 465                 else if ( sourceinfo.is_video )
 466                 {
 467                         char srt_filename[strlen(filename)+1];
 468                         strncpy(srt_filename,filename,strlen(filename)-3);
 469                         srt_filename[strlen(filename)-3]='\0';
 470                         strcat(srt_filename, "srt");
 471                         struct stat buffer;
 472                         if (stat(srt_filename, &buffer) == 0)
 473                         {
 474                                 eDebug("subtitle file found: %s",srt_filename);
 475                                 GstElement *subsource = gst_element_factory_make ("filesrc", "srt_source");
 476                                 g_object_set (G_OBJECT (subsource), "location", srt_filename, NULL);
 477                                 gst_bin_add(GST_BIN (m_gst_pipeline), subsource);
 478                                 GstPad *switchpad = gstCreateSubtitleSink(this, stSRT);
 479                                 gst_pad_link(gst_element_get_pad (subsource, "src"), switchpad);
 480                                 subtitleStream subs;
 481                                 subs.pad = switchpad;
 482                                 subs.type = stSRT;
 483                                 subs.language_code = std::string("und");
 484                                 m_subtitleStreams.push_back(subs);
 485                         }
 486                         gst_bin_add_many(GST_BIN(m_gst_pipeline), source, videodemux, audio, queue_audio, video, queue_video, switch_audio, NULL);
 487
 488                         if ( sourceinfo.containertype == ctVCD && gst_bin_get_by_name(GST_BIN(m_gst_pipeline),"file-source") )
 489                         {
 490                                 eDebug("this is a fake video cd... we use filesrc ! cdxaparse !");
 491                                 GstElement *cdxaparse = gst_element_factory_make("cdxaparse", "cdxaparse");
 492                                 gst_bin_add(GST_BIN(m_gst_pipeline), cdxaparse);
 493                                 gst_element_link(source, cdxaparse);
 494                                 gst_element_link(cdxaparse, videodemux);
 495                         }
 496                         else
 497                                 gst_element_link(source, videodemux);
 498
 499                         gst_element_link(switch_audio, queue_audio);
 500                         gst_element_link(queue_audio, audio);
 501                         gst_element_link(queue_video, video);
 502                         g_signal_connect(videodemux, "pad-added", G_CALLBACK (gstCBpadAdded), this);
 503
 504                 } else /* is audio*/
 505                 {
 506                         if ( decoder )
 507                         {
 508                                 queue_audio = gst_element_factory_make("queue", "queue_audio");
 509
 510                                 g_signal_connect (decoder, "new-decoded-pad", G_CALLBACK(gstCBnewPad), this);
 511                                 g_signal_connect (decoder, "unknown-type", G_CALLBACK(gstCBunknownType), this);
 512
 513                                 g_object_set (G_OBJECT (sink), "preroll-queue-len", 80, NULL);
 514
 515                                         /* gst_bin will take the 'floating references' */
 516                                 gst_bin_add_many (GST_BIN (m_gst_pipeline),
 517                                                         source, queue_audio, decoder, NULL);
 518
 519                                         /* in decodebin's case we can just connect the source with the decodebin, and decodebin will take care about id3demux (or whatever is required) */
 520                                 gst_element_link_many(source, queue_audio, decoder, NULL);
 521
 522                                         /* create audio bin with the audioconverter, the capsfilter and the audiosink */
 523                                 audio = gst_bin_new ("audiobin");
 524
 525                                 GstPad *audiopad = gst_element_get_static_pad (conv, "sink");
 526                                 gst_bin_add_many(GST_BIN(audio), conv, flt, sink, NULL);
 527                                 gst_element_link_many(conv, flt, sink, NULL);
 528                                 gst_element_add_pad(audio, gst_ghost_pad_new ("sink", audiopad));
 529                                 gst_object_unref(audiopad);
 530                                 gst_bin_add (GST_BIN(m_gst_pipeline), audio);
 531                         }
 532                         else
 533                         {
 534                                 gst_bin_add_many (GST_BIN (m_gst_pipeline), source, sink, NULL);
 535                                 if ( parser )
 536                                 {
 537                                         gst_bin_add (GST_BIN (m_gst_pipeline), parser);
 538                                         gst_element_link_many(source, parser, sink, NULL);
 539                                 }
 540                                 if ( audiodemux )
 541                                 {
 542                                         gst_bin_add (GST_BIN (m_gst_pipeline), audiodemux);
 543                                         g_signal_connect(audiodemux, "pad-added", G_CALLBACK (gstCBpadAdded), this);
 544                                         gst_element_link(source, audiodemux);
 545                                         eDebug("linked source, audiodemux, sink");
 546                                 }
 547                                 audioStream audio;
 548                                 audio.type = sourceinfo.audiotype;
 549                                 m_audioStreams.push_back(audio);
 550                         }
 551                 }
 552         } else
 553         {
 554                 m_event((iPlayableService*)this, evUser+12);
 555
 556                 if (m_gst_pipeline)
 557                         gst_object_unref(GST_OBJECT(m_gst_pipeline));
 558                 if (source)
 559                         gst_object_unref(GST_OBJECT(source));
 560                 if (decoder)
 561                         gst_object_unref(GST_OBJECT(decoder));
 562                 if (conv)
 563                         gst_object_unref(GST_OBJECT(conv));
 564                 if (sink)
 565                         gst_object_unref(GST_OBJECT(sink));
 566
 567                 if (audio)
 568                         gst_object_unref(GST_OBJECT(audio));
 569                 if (queue_audio)
 570                         gst_object_unref(GST_OBJECT(queue_audio));
 571                 if (video)
 572                         gst_object_unref(GST_OBJECT(video));
 573                 if (queue_video)
 574                         gst_object_unref(GST_OBJECT(queue_video));
 575                 if (videodemux)
 576                         gst_object_unref(GST_OBJECT(videodemux));
 577                 if (switch_audio)
 578                         gst_object_unref(GST_OBJECT(switch_audio));
 579
 580                 eDebug("sorry, can't play: %s",m_error_message.c_str());
 581                 m_gst_pipeline = 0;
 582         }
 583
 584         gst_element_set_state (m_gst_pipeline, GST_STATE_PLAYING);
 585 }
 586
 587 eServiceMP3::~eServiceMP3()
 588 {
 589         delete m_subtitle_widget;
 590         if (m_state == stRunning)
 591                 stop();
 592
 593         if (m_stream_tags)
 594                 gst_tag_list_free(m_stream_tags);
 595
 596         if (m_gst_pipeline)
 597         {
 598                 gst_object_unref (GST_OBJECT (m_gst_pipeline));
 599                 eDebug("SERVICEMP3 destruct!");
 600         }
 601 }
 602
 603 DEFINE_REF(eServiceMP3);
 604
 605 RESULT eServiceMP3::connectEvent(const Slot2<void,iPlayableService*,int> &event, ePtr<eConnection> &connection)
 606 {
 607         connection = new eConnection((iPlayableService*)this, m_event.connect(event));
 608         return 0;
 609 }
 610
 611 RESULT eServiceMP3::start()
 612 {
 613         assert(m_state == stIdle);
 614
 615         m_state = stRunning;
 616         if (m_gst_pipeline)
 617         {
 618                 eDebug("starting pipeline");
 619                 gst_element_set_state (m_gst_pipeline, GST_STATE_PLAYING);
 620         }
 621         m_event(this, evStart);
 622         return 0;
 623 }
 624
 625 RESULT eServiceMP3::stop()
 626 {
 627         assert(m_state != stIdle);
 628         if (m_state == stStopped)
 629                 return -1;
 630         eDebug("MP3: %s stop\n", m_filename.c_str());
 631         gst_element_set_state(m_gst_pipeline, GST_STATE_NULL);
 632         m_state = stStopped;
 633         return 0;
 634 }
 635
 636 RESULT eServiceMP3::setTarget(int target)
 637 {
 638         return -1;
 639 }
 640
 641 RESULT eServiceMP3::pause(ePtr<iPauseableService> &ptr)
 642 {
 643         ptr=this;
 644         return 0;
 645 }
 646
 647 RESULT eServiceMP3::setSlowMotion(int ratio)
 648 {
 649         /* we can't do slomo yet */
 650         return -1;
 651 }
 652
 653 RESULT eServiceMP3::setFastForward(int ratio)
 654 {
 655         m_currentTrickRatio = ratio;
 656         if (ratio)
 657                 m_seekTimeout->start(1000, 0);
 658         else
 659                 m_seekTimeout->stop();
 660         return 0;
 661 }
 662
 663 void eServiceMP3::seekTimeoutCB()
 664 {
 665         pts_t ppos, len;
 666         getPlayPosition(ppos);
 667         getLength(len);
 668         ppos += 90000*m_currentTrickRatio;
 669
 670         if (ppos < 0)
 671         {
 672                 ppos = 0;
 673                 m_seekTimeout->stop();
 674         }
 675         if (ppos > len)
 676         {
 677                 ppos = 0;
 678                 stop();
 679                 m_seekTimeout->stop();
 680                 return;
 681         }
 682         seekTo(ppos);
 683 }
 684
 685                 // iPausableService
 686 RESULT eServiceMP3::pause()
 687 {
 688         if (!m_gst_pipeline)
 689                 return -1;
 690         GstStateChangeReturn res = gst_element_set_state(m_gst_pipeline, GST_STATE_PAUSED);
 691         if (res == GST_STATE_CHANGE_ASYNC)
 692         {
 693                 pts_t ppos;
 694                 getPlayPosition(ppos);
 695                 seekTo(ppos);
 696         }
 697         return 0;
 698 }
 699
 700 RESULT eServiceMP3::unpause()
 701 {
 702         if (!m_gst_pipeline)
 703                 return -1;
 704
 705         GstStateChangeReturn res;
 706         res = gst_element_set_state(m_gst_pipeline, GST_STATE_PLAYING);
 707         return 0;
 708 }
 709
 710         /* iSeekableService */
 711 RESULT eServiceMP3::seek(ePtr<iSeekableService> &ptr)
 712 {
 713         ptr = this;
 714         return 0;
 715 }
 716
 717 RESULT eServiceMP3::getLength(pts_t &pts)
 718 {
 719         if (!m_gst_pipeline)
 720                 return -1;
 721         if (m_state != stRunning)
 722                 return -1;
 723
 724         GstFormat fmt = GST_FORMAT_TIME;
 725         gint64 len;
 726
 727         if (!gst_element_query_duration(m_gst_pipeline, &fmt, &len))
 728                 return -1;
 729
 730                 /* len is in nanoseconds. we have 90 000 pts per second. */
 731
 732         pts = len / 11111;
 733         return 0;
 734 }
 735
 736 RESULT eServiceMP3::seekTo(pts_t to)
 737 {
 738         if (!m_gst_pipeline)
 739                 return -1;
 740
 741                 /* convert pts to nanoseconds */
 742         gint64 time_nanoseconds = to * 11111LL;
 743         if (!gst_element_seek (m_gst_pipeline, 1.0, GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH,
 744                 GST_SEEK_TYPE_SET, time_nanoseconds,
 745                 GST_SEEK_TYPE_NONE, GST_CLOCK_TIME_NONE))
 746         {
 747                 eDebug("SEEK failed");
 748                 return -1;
 749         }
 750         return 0;
 751 }
 752
 753 RESULT eServiceMP3::seekRelative(int direction, pts_t to)
 754 {
 755         if (!m_gst_pipeline)
 756                 return -1;
 757
 758         pts_t ppos;
 759         getPlayPosition(ppos);
 760         ppos += to * direction;
 761         if (ppos < 0)
 762                 ppos = 0;
 763         seekTo(ppos);
 764
 765         return 0;
 766 }
 767
 768 RESULT eServiceMP3::getPlayPosition(pts_t &pts)
 769 {
 770         if (!m_gst_pipeline)
 771                 return -1;
 772         if (m_state != stRunning)
 773                 return -1;
 774
 775         GstFormat fmt = GST_FORMAT_TIME;
 776         gint64 len;
 777
 778         if (!gst_element_query_position(m_gst_pipeline, &fmt, &len))
 779                 return -1;
 780
 781                 /* len is in nanoseconds. we have 90 000 pts per second. */
 782         pts = len / 11111;
 783         return 0;
 784 }
 785
 786 RESULT eServiceMP3::setTrickmode(int trick)
 787 {
 788                 /* trickmode is not yet supported by our dvbmediasinks. */
 789         return -1;
 790 }
 791
 792 RESULT eServiceMP3::isCurrentlySeekable()
 793 {
 794         return 1;
 795 }
 796
 797 RESULT eServiceMP3::info(ePtr<iServiceInformation>&i)
 798 {
 799         i = this;
 800         return 0;
 801 }
 802
 803 RESULT eServiceMP3::getName(std::string &name)
 804 {
 805         name = m_filename;
 806         size_t n = name.rfind('/');
 807         if (n != std::string::npos)
 808                 name = name.substr(n + 1);
 809         return 0;
 810 }
 811
 812 int eServiceMP3::getInfo(int w)
 813 {
 814         gchar *tag = 0;
 815
 816         switch (w)
 817         {
 818         case sTitle:
 819         case sArtist:
 820         case sAlbum:
 821         case sComment:
 822         case sTracknumber:
 823         case sGenre:
 824         case sVideoType:
 825         case sTimeCreate:
 826         case sUser+12:
 827                 return resIsString;
 828         case sCurrentTitle:
 829                 tag = GST_TAG_TRACK_NUMBER;
 830                 break;
 831         case sTotalTitles:
 832                 tag = GST_TAG_TRACK_COUNT;
 833                 break;
 834         default:
 835                 return resNA;
 836         }
 837
 838         if (!m_stream_tags || !tag)
 839                 return 0;
 840
 841         guint value;
 842         if (gst_tag_list_get_uint(m_stream_tags, tag, &value))
 843                 return (int) value;
 844
 845         return 0;
 846
 847 }
 848
 849 std::string eServiceMP3::getInfoString(int w)
 850 {
 851         if ( !m_stream_tags )
 852                 return "";
 853         gchar *tag = 0;
 854         switch (w)
 855         {
 856         case sTitle:
 857                 tag = GST_TAG_TITLE;
 858                 break;
 859         case sArtist:
 860                 tag = GST_TAG_ARTIST;
 861                 break;
 862         case sAlbum:
 863                 tag = GST_TAG_ALBUM;
 864                 break;
 865         case sComment:
 866                 tag = GST_TAG_COMMENT;
 867                 break;
 868         case sTracknumber:
 869                 tag = GST_TAG_TRACK_NUMBER;
 870                 break;
 871         case sGenre:
 872                 tag = GST_TAG_GENRE;
 873                 break;
 874         case sVideoType:
 875                 tag = GST_TAG_VIDEO_CODEC;
 876                 break;
 877         case sTimeCreate:
 878                 GDate *date;
 879                 if (gst_tag_list_get_date(m_stream_tags, GST_TAG_DATE, &date))
 880                 {
 881                         gchar res[5];
 882                         g_date_strftime (res, sizeof(res), "%Y", date);
 883                         return (std::string)res;
 884                 }
 885                 break;
 886         case sUser+12:
 887                 return m_error_message;
 888         default:
 889                 return "";
 890         }
 891         if ( !tag )
 892                 return "";
 893         gchar *value;
 894         if (gst_tag_list_get_string(m_stream_tags, tag, &value))
 895         {
 896                 std::string res = value;
 897                 g_free(value);
 898                 return res;
 899         }
 900         return "";
 901 }
 902
 903 RESULT eServiceMP3::audioChannel(ePtr<iAudioChannelSelection> &ptr)
 904 {
 905         ptr = this;
 906         return 0;
 907 }
 908
 909 RESULT eServiceMP3::audioTracks(ePtr<iAudioTrackSelection> &ptr)
 910 {
 911         ptr = this;
 912         return 0;
 913 }
 914
 915 RESULT eServiceMP3::subtitle(ePtr<iSubtitleOutput> &ptr)
 916 {
 917         ptr = this;
 918         return 0;
 919 }
 920
 921 int eServiceMP3::getNumberOfTracks()
 922 {
 923         return m_audioStreams.size();
 924 }
 925
 926 int eServiceMP3::getCurrentTrack()
 927 {
 928         return m_currentAudioStream;
 929 }
 930
 931 RESULT eServiceMP3::selectTrack(unsigned int i)
 932 {
 933         int ret = selectAudioStream(i);
 934         /* flush */
 935         pts_t ppos;
 936         getPlayPosition(ppos);
 937         seekTo(ppos);
 938
 939         return ret;
 940 }
 941
 942 int eServiceMP3::selectAudioStream(int i)
 943 {
 944         gint nb_sources;
 945         GstPad *active_pad;
 946         GstElement *switch_audio = gst_bin_get_by_name(GST_BIN(m_gst_pipeline),"switch_audio");
 947         if ( !switch_audio )
 948         {
 949                 eDebug("can't switch audio tracks! gst-plugin-selector needed");
 950                 return -1;
 951         }
 952         g_object_get (G_OBJECT (switch_audio), "n-pads", &nb_sources, NULL);
 953         if ( (unsigned int)i >= m_audioStreams.size() || i >= nb_sources || (unsigned int)m_currentAudioStream >= m_audioStreams.size() )
 954                 return -2;
 955         char sinkpad[8];
 956         sprintf(sinkpad, "sink%d", i);
 957         g_object_set (G_OBJECT (switch_audio), "active-pad", gst_element_get_pad (switch_audio, sinkpad), NULL);
 958         g_object_get (G_OBJECT (switch_audio), "active-pad", &active_pad, NULL);
 959         gchar *name;
 960         name = gst_pad_get_name (active_pad);
 961         eDebug ("switched audio to (%s)", name);
 962         g_free(name);
 963         m_currentAudioStream = i;
 964         return 0;
 965 }
 966
 967 int eServiceMP3::getCurrentChannel()
 968 {
 969         return STEREO;
 970 }
 971
 972 RESULT eServiceMP3::selectChannel(int i)
 973 {
 974         eDebug("eServiceMP3::selectChannel(%i)",i);
 975         return 0;
 976 }
 977
 978 RESULT eServiceMP3::getTrackInfo(struct iAudioTrackInfo &info, unsigned int i)
 979 {
 980 //      eDebug("eServiceMP3::getTrackInfo(&info, %i)",i);
 981         if (i >= m_audioStreams.size())
 982                 return -2;
 983         if (m_audioStreams[i].type == atMPEG)
 984                 info.m_description = "MPEG";
 985         else if (m_audioStreams[i].type == atMP3)
 986                 info.m_description = "MP3";
 987         else if (m_audioStreams[i].type == atAC3)
 988                 info.m_description = "AC3";
 989         else if (m_audioStreams[i].type == atAAC)
 990                 info.m_description = "AAC";
 991         else if (m_audioStreams[i].type == atDTS)
 992                 info.m_description = "DTS";
 993         else if (m_audioStreams[i].type == atPCM)
 994                 info.m_description = "PCM";
 995         else if (m_audioStreams[i].type == atOGG)
 996                 info.m_description = "OGG";
 997         else
 998                 info.m_description = "???";
 999         if (info.m_language.empty())
1000                 info.m_language = m_audioStreams[i].language_code;
1001         return 0;
1002 }
1003
1004 void eServiceMP3::gstBusCall(GstBus *bus, GstMessage *msg)
1005 {
1006         if (!msg)
1007                 return;
1008         gchar *sourceName;
1009         GstObject *source;
1010
1011         source = GST_MESSAGE_SRC(msg);
1012         sourceName = gst_object_get_name(source);
1013 #if 0
1014         if (gst_message_get_structure(msg))
1015         {
1016                 gchar *string = gst_structure_to_string(gst_message_get_structure(msg));
1017                 eDebug("gst_message from %s: %s", sourceName, string);
1018                 g_free(string);
1019         }
1020         else
1021                 eDebug("gst_message from %s: %s (without structure)", sourceName, GST_MESSAGE_TYPE_NAME(msg));
1022 #endif
1023         switch (GST_MESSAGE_TYPE (msg))
1024         {
1025         case GST_MESSAGE_EOS:
1026                 m_event((iPlayableService*)this, evEOF);
1027                 break;
1028         case GST_MESSAGE_ERROR:
1029         {
1030                 gchar *debug;
1031                 GError *err;
1032
1033                 gst_message_parse_error (msg, &err, &debug);
1034                 g_free (debug);
1035                 eWarning("Gstreamer error: %s (%i)", err->message, err->code );
1036                 if ( err->domain == GST_STREAM_ERROR && err->code == GST_STREAM_ERROR_DECODE )
1037                 {
1038                         if ( g_strrstr(sourceName, "videosink") )
1039                                 m_event((iPlayableService*)this, evUser+11);
1040                 }
1041                 g_error_free(err);
1042                         /* TODO: signal error condition to user */
1043                 break;
1044         }
1045         case GST_MESSAGE_TAG:
1046         {
1047                 GstTagList *tags, *result;
1048                 gst_message_parse_tag(msg, &tags);
1049
1050                 result = gst_tag_list_merge(m_stream_tags, tags, GST_TAG_MERGE_PREPEND);
1051                 if (result)
1052                 {
1053                         if (m_stream_tags)
1054                                 gst_tag_list_free(m_stream_tags);
1055                         m_stream_tags = result;
1056                 }
1057
1058                 gchar *g_audiocodec;
1059                 if ( gst_tag_list_get_string(tags, GST_TAG_AUDIO_CODEC, &g_audiocodec) && m_audioStreams.size() == 0 )
1060                 {
1061                         GstPad* pad = gst_element_get_pad (GST_ELEMENT(source), "src");
1062                         GstCaps* caps = gst_pad_get_caps(pad);
1063                         GstStructure* str = gst_caps_get_structure(caps, 0);
1064                         if ( !str )
1065                                 break;
1066                         audioStream audio;
1067                         audio.type = gstCheckAudioPad(str);
1068                         m_audioStreams.push_back(audio);
1069                 }
1070
1071                 GValue *gv_image = gst_tag_list_get_value_index(tags, GST_TAG_IMAGE, 0);
1072                 if ( gv_image )
1073                 {
1074                         GstBuffer *buf_image;
1075                         buf_image = gst_value_get_buffer (gv_image);
1076                         int fd = open("/tmp/.id3coverart", O_CREAT|O_WRONLY|O_TRUNC, 0644);
1077                         int ret = write(fd, GST_BUFFER_DATA(buf_image), GST_BUFFER_SIZE(buf_image));
1078                         close(fd);
1079                         m_event((iPlayableService*)this, evUser+13);
1080                 }
1081
1082                 gst_tag_list_free(tags);
1083                 m_event((iPlayableService*)this, evUpdatedInfo);
1084                 break;
1085         }
1086         case GST_MESSAGE_ASYNC_DONE:
1087         {
1088                 GstTagList *tags;
1089                 for (std::vector<audioStream>::iterator IterAudioStream(m_audioStreams.begin()); IterAudioStream != m_audioStreams.end(); ++IterAudioStream)
1090                 {
1091                         if ( IterAudioStream->pad )
1092                         {
1093                                 g_object_get(IterAudioStream->pad, "tags", &tags, NULL);
1094                                 gchar *g_language;
1095                                 if ( gst_is_tag_list(tags) && gst_tag_list_get_string(tags, GST_TAG_LANGUAGE_CODE, &g_language) )
1096                                 {
1097                                         eDebug("found audio language %s",g_language);
1098                                         IterAudioStream->language_code = std::string(g_language);
1099                                         g_free (g_language);
1100                                 }
1101                         }
1102                 }
1103                 for (std::vector<subtitleStream>::iterator IterSubtitleStream(m_subtitleStreams.begin()); IterSubtitleStream != m_subtitleStreams.end(); ++IterSubtitleStream)
1104                 {
1105                         if ( IterSubtitleStream->pad )
1106                         {
1107                                 g_object_get(IterSubtitleStream->pad, "tags", &tags, NULL);
1108                                 gchar *g_language;
1109                                 if ( gst_is_tag_list(tags) && gst_tag_list_get_string(tags, GST_TAG_LANGUAGE_CODE, &g_language) )
1110                                 {
1111                                         eDebug("found subtitle language %s",g_language);
1112                                         IterSubtitleStream->language_code = std::string(g_language);
1113                                         g_free (g_language);
1114                                 }
1115                         }
1116                 }
1117         }
1118         case GST_MESSAGE_ELEMENT:
1119         {
1120                 if ( gst_is_missing_plugin_message(msg) )
1121                 {
1122                         gchar *description = gst_missing_plugin_message_get_description(msg);
1123                         if ( description )
1124                         {
1125                                 m_error_message = "GStreamer plugin " + (std::string)description + " not available!\n";
1126                                 g_free(description);
1127                                 m_event((iPlayableService*)this, evUser+12);
1128                         }
1129                 }
1130         }
1131         default:
1132                 break;
1133         }
1134         g_free (sourceName);
1135 }
1136
1137 GstBusSyncReply eServiceMP3::gstBusSyncHandler(GstBus *bus, GstMessage *message, gpointer user_data)
1138 {
1139         eServiceMP3 *_this = (eServiceMP3*)user_data;
1140         _this->m_pump.send(1);
1141                 /* wake */
1142         return GST_BUS_PASS;
1143 }
1144
1145 audiotype_t eServiceMP3::gstCheckAudioPad(GstStructure* structure)
1146 {
1147         const gchar* type;
1148         type = gst_structure_get_name(structure);
1149
1150         if (!strcmp(type, "audio/mpeg")) {
1151                         gint mpegversion, layer = 0;
1152                         gst_structure_get_int (structure, "mpegversion", &mpegversion);
1153                         gst_structure_get_int (structure, "layer", &layer);
1154                         eDebug("mime audio/mpeg version %d layer %d", mpegversion, layer);
1155                         switch (mpegversion) {
1156                                 case 1:
1157                                 {
1158                                         if ( layer == 3 )
1159                                                 return atMP3;
1160                                         else
1161                                                 return atMPEG;
1162                                 }
1163                                 case 2:
1164                                         return atMPEG;
1165                                 case 4:
1166                                         return atAAC;
1167                                 default:
1168                                         return atUnknown;
1169                         }
1170                 }
1171         else
1172         {
1173                 eDebug("mime %s", type);
1174                 if (!strcmp(type, "audio/x-ac3") || !strcmp(type, "audio/ac3"))
1175                         return atAC3;
1176                 else if (!strcmp(type, "audio/x-dts") || !strcmp(type, "audio/dts"))
1177                         return atDTS;
1178                 else if (!strcmp(type, "audio/x-raw-int"))
1179                         return atPCM;
1180         }
1181         return atUnknown;
1182 }
1183
1184 void eServiceMP3::gstCBpadAdded(GstElement *decodebin, GstPad *pad, gpointer user_data)
1185 {
1186         const gchar* type;
1187         GstCaps* caps;
1188         GstStructure* str;
1189         caps = gst_pad_get_caps(pad);
1190         str = gst_caps_get_structure(caps, 0);
1191         type = gst_structure_get_name(str);
1192
1193         eDebug("A new pad %s:%s was created", GST_OBJECT_NAME (decodebin), GST_OBJECT_NAME (pad));
1194
1195         eServiceMP3 *_this = (eServiceMP3*)user_data;
1196         GstBin *pipeline = GST_BIN(_this->m_gst_pipeline);
1197         if (g_strrstr(type,"audio"))
1198         {
1199                 audioStream audio;
1200                 audio.type = _this->gstCheckAudioPad(str);
1201                 GstElement *switch_audio = gst_bin_get_by_name(pipeline , "switch_audio");
1202                 if ( switch_audio )
1203                 {
1204                         GstPad *sinkpad = gst_element_get_request_pad (switch_audio, "sink%d");
1205                         gst_pad_link(pad, sinkpad);
1206                         audio.pad = sinkpad;
1207                         _this->m_audioStreams.push_back(audio);
1208
1209                         if ( _this->m_audioStreams.size() == 1 )
1210                         {
1211                                 _this->selectAudioStream(0);
1212                                 gst_element_set_state (_this->m_gst_pipeline, GST_STATE_PLAYING);
1213                         }
1214                         else
1215                                 g_object_set (G_OBJECT (switch_audio), "select-all", FALSE, NULL);
1216                 }
1217                 else
1218                 {
1219                         GstElement *queue_audio = gst_bin_get_by_name(pipeline , "queue_audio");
1220                         if ( queue_audio)
1221                         {
1222                                 gst_pad_link(pad, gst_element_get_static_pad(queue_audio, "sink"));
1223                                 _this->m_audioStreams.push_back(audio);
1224                         }
1225                         else
1226                                 gst_pad_link(pad, gst_element_get_static_pad(gst_bin_get_by_name(pipeline , "audiosink"), "sink"));
1227                 }
1228         }
1229         if (g_strrstr(type,"video"))
1230         {
1231                 gst_pad_link(pad, gst_element_get_static_pad(gst_bin_get_by_name(pipeline,"queue_video"), "sink"));
1232         }
1233         if (g_strrstr(type,"application/x-ssa") || g_strrstr(type,"application/x-ass"))
1234         {
1235                 GstPad *switchpad = _this->gstCreateSubtitleSink(_this, stSSA);
1236                 gst_pad_link(pad, switchpad);
1237                 subtitleStream subs;
1238                 subs.pad = switchpad;
1239                 subs.type = stSSA;
1240                 _this->m_subtitleStreams.push_back(subs);
1241         }
1242         if (g_strrstr(type,"text/plain"))
1243         {
1244                 GstPad *switchpad = _this->gstCreateSubtitleSink(_this, stPlainText);
1245                 gst_pad_link(pad, switchpad);
1246                 subtitleStream subs;
1247                 subs.pad = switchpad;
1248                 subs.type = stPlainText;
1249                 _this->m_subtitleStreams.push_back(subs);
1250         }
1251 }
1252
1253 GstPad* eServiceMP3::gstCreateSubtitleSink(eServiceMP3* _this, subtype_t type)
1254 {
1255         GstBin *pipeline = GST_BIN(_this->m_gst_pipeline);
1256         GstElement *switch_subparse = gst_bin_get_by_name(pipeline,"switch_subparse");
1257         if ( !switch_subparse )
1258         {
1259                 switch_subparse = gst_element_factory_make ("input-selector", "switch_subparse");
1260                 GstElement *sink = gst_element_factory_make("fakesink", "sink_subtitles");
1261                 gst_bin_add_many(pipeline, switch_subparse, sink, NULL);
1262                 gst_element_link(switch_subparse, sink);
1263                 g_object_set (G_OBJECT(sink), "signal-handoffs", TRUE, NULL);
1264                 g_object_set (G_OBJECT(sink), "sync", TRUE, NULL);
1265                 g_object_set (G_OBJECT(sink), "async", FALSE, NULL);
1266                 g_signal_connect(sink, "handoff", G_CALLBACK(_this->gstCBsubtitleAvail), _this);
1267
1268                 // order is essential since requested sink pad names can't be explicitely chosen
1269                 GstElement *switch_substream_plain = gst_element_factory_make ("input-selector", "switch_substream_plain");
1270                 gst_bin_add(pipeline, switch_substream_plain);
1271                 GstPad *sinkpad_plain = gst_element_get_request_pad (switch_subparse, "sink%d");
1272                 gst_pad_link(gst_element_get_pad (switch_substream_plain, "src"), sinkpad_plain);
1273
1274                 GstElement *switch_substream_ssa = gst_element_factory_make ("input-selector", "switch_substream_ssa");
1275                 GstElement *ssaparse = gst_element_factory_make("ssaparse", "ssaparse");
1276                 gst_bin_add_many(pipeline, switch_substream_ssa, ssaparse, NULL);
1277                 GstPad *sinkpad_ssa = gst_element_get_request_pad (switch_subparse, "sink%d");
1278                 gst_element_link(switch_substream_ssa, ssaparse);
1279                 gst_pad_link(gst_element_get_pad (ssaparse, "src"), sinkpad_ssa);
1280
1281                 GstElement *switch_substream_srt = gst_element_factory_make ("input-selector", "switch_substream_srt");
1282                 GstElement *srtparse = gst_element_factory_make("subparse", "srtparse");
1283                 gst_bin_add_many(pipeline, switch_substream_srt, srtparse, NULL);
1284                 GstPad *sinkpad_srt = gst_element_get_request_pad (switch_subparse, "sink%d");
1285                 gst_element_link(switch_substream_srt, srtparse);
1286                 gst_pad_link(gst_element_get_pad (srtparse, "src"), sinkpad_srt);
1287                 g_object_set (G_OBJECT(srtparse), "subtitle-encoding", "ISO-8859-15", NULL);
1288         }
1289
1290         switch (type)
1291         {
1292                 case stSSA:
1293                         return gst_element_get_request_pad (gst_bin_get_by_name(pipeline,"switch_substream_ssa"), "sink%d");
1294                 case stSRT:
1295                         return gst_element_get_request_pad (gst_bin_get_by_name(pipeline,"switch_substream_srt"), "sink%d");
1296                 case stPlainText:
1297                 default:
1298                         break;
1299         }
1300         return gst_element_get_request_pad (gst_bin_get_by_name(pipeline,"switch_substream_plain"), "sink%d");
1301 }
1302
1303 void eServiceMP3::gstCBfilterPadAdded(GstElement *filter, GstPad *pad, gpointer user_data)
1304 {
1305         eServiceMP3 *_this = (eServiceMP3*)user_data;
1306         GstElement *decoder = gst_bin_get_by_name(GST_BIN(_this->m_gst_pipeline),"decoder");
1307         gst_pad_link(pad, gst_element_get_static_pad (decoder, "sink"));
1308 }
1309
1310 void eServiceMP3::gstCBnewPad(GstElement *decodebin, GstPad *pad, gboolean last, gpointer user_data)
1311 {
1312         eServiceMP3 *_this = (eServiceMP3*)user_data;
1313         GstCaps *caps;
1314         GstStructure *str;
1315         GstPad *audiopad;
1316
1317         /* only link once */
1318         GstElement *audiobin = gst_bin_get_by_name(GST_BIN(_this->m_gst_pipeline),"audiobin");
1319         audiopad = gst_element_get_static_pad (audiobin, "sink");
1320         if ( !audiopad || GST_PAD_IS_LINKED (audiopad)) {
1321                 eDebug("audio already linked!");
1322                 g_object_unref (audiopad);
1323                 return;
1324         }
1325
1326         /* check media type */
1327         caps = gst_pad_get_caps (pad);
1328         str = gst_caps_get_structure (caps, 0);
1329         eDebug("gst new pad! %s", gst_structure_get_name (str));
1330
1331         if (!g_strrstr (gst_structure_get_name (str), "audio")) {
1332                 gst_caps_unref (caps);
1333                 gst_object_unref (audiopad);
1334                 return;
1335         }
1336
1337         gst_caps_unref (caps);
1338         gst_pad_link (pad, audiopad);
1339 }
1340
1341 void eServiceMP3::gstCBunknownType(GstElement *decodebin, GstPad *pad, GstCaps *caps, gpointer user_data)
1342 {
1343         GstStructure *str;
1344
1345         /* check media type */
1346         caps = gst_pad_get_caps (pad);
1347         str = gst_caps_get_structure (caps, 0);
1348         eDebug("unknown type: %s - this can't be decoded.", gst_structure_get_name (str));
1349         gst_caps_unref (caps);
1350 }
1351
1352 void eServiceMP3::gstPoll(const int&)
1353 {
1354                 /* ok, we have a serious problem here. gstBusSyncHandler sends
1355                    us the wakup signal, but likely before it was posted.
1356                    the usleep, an EVIL HACK (DON'T DO THAT!!!) works around this.
1357
1358                    I need to understand the API a bit more to make this work
1359                    proplerly. */
1360         usleep(1);
1361
1362         GstBus *bus = gst_pipeline_get_bus (GST_PIPELINE (m_gst_pipeline));
1363         GstMessage *message;
1364         while ((message = gst_bus_pop (bus)))
1365         {
1366                 gstBusCall(bus, message);
1367                 gst_message_unref (message);
1368         }
1369 }
1370
1371 eAutoInitPtr<eServiceFactoryMP3> init_eServiceFactoryMP3(eAutoInitNumbers::service+1, "eServiceFactoryMP3");
1372
1373 void eServiceMP3::gstCBsubtitleAvail(GstElement *element, GstBuffer *buffer, GstPad *pad, gpointer user_data)
1374 {
1375         gint64 duration_ns = GST_BUFFER_DURATION(buffer);
1376         const unsigned char *text = (unsigned char *)GST_BUFFER_DATA(buffer);
1377         eDebug("gstCBsubtitleAvail: %s",text);
1378         eServiceMP3 *_this = (eServiceMP3*)user_data;
1379         if ( _this->m_subtitle_widget )
1380         {
1381                 ePangoSubtitlePage page;
1382                 gRGB rgbcol(0xD0,0xD0,0xD0);
1383                 page.m_elements.push_back(ePangoSubtitlePageElement(rgbcol, (const char*)text));
1384                 page.m_timeout = duration_ns / 1000000;
1385                 (_this->m_subtitle_widget)->setPage(page);
1386         }
1387 }
1388
1389 RESULT eServiceMP3::enableSubtitles(eWidget *parent, ePyObject tuple)
1390 {
1391         ePyObject entry;
1392         int tuplesize = PyTuple_Size(tuple);
1393         int pid;
1394         int type;
1395         gint nb_sources;
1396         GstPad *active_pad;
1397         GstElement *switch_substream = NULL;
1398         GstElement *switch_subparse = gst_bin_get_by_name (GST_BIN(m_gst_pipeline), "switch_subparse");
1399
1400         if (!PyTuple_Check(tuple))
1401                 goto error_out;
1402         if (tuplesize < 1)
1403                 goto error_out;
1404         entry = PyTuple_GET_ITEM(tuple, 1);
1405         if (!PyInt_Check(entry))
1406                 goto error_out;
1407         pid = PyInt_AsLong(entry);
1408         entry = PyTuple_GET_ITEM(tuple, 2);
1409         if (!PyInt_Check(entry))
1410                 goto error_out;
1411         type = PyInt_AsLong(entry);
1412
1413         switch ((subtype_t)type)
1414         {
1415                 case stPlainText:
1416                         switch_substream = gst_bin_get_by_name(GST_BIN(m_gst_pipeline),"switch_substream_plain");
1417                         break;
1418                 case stSSA:
1419                         switch_substream = gst_bin_get_by_name(GST_BIN(m_gst_pipeline),"switch_substream_ssa");
1420                         break;
1421                 case stSRT:
1422                         switch_substream = gst_bin_get_by_name(GST_BIN(m_gst_pipeline),"switch_substream_srt");
1423                         break;
1424                 default:
1425                         goto error_out;
1426         }
1427
1428         m_subtitle_widget = new eSubtitleWidget(parent);
1429         m_subtitle_widget->resize(parent->size()); /* full size */
1430
1431         if ( !switch_substream )
1432         {
1433                 eDebug("can't switch subtitle tracks! gst-plugin-selector needed");
1434                 return -2;
1435         }
1436         g_object_get (G_OBJECT (switch_substream), "n-pads", &nb_sources, NULL);
1437         if ( (unsigned int)pid >= m_subtitleStreams.size() || pid >= nb_sources || (unsigned int)m_currentSubtitleStream >= m_subtitleStreams.size() )
1438                 return -2;
1439         g_object_get (G_OBJECT (switch_subparse), "n-pads", &nb_sources, NULL);
1440         if ( type < 0 || type >= nb_sources )
1441                 return -2;
1442
1443         char sinkpad[6];
1444         sprintf(sinkpad, "sink%d", type);
1445         g_object_set (G_OBJECT (switch_subparse), "active-pad", gst_element_get_pad (switch_subparse, sinkpad), NULL);
1446         sprintf(sinkpad, "sink%d", pid);
1447         g_object_set (G_OBJECT (switch_substream), "active-pad", gst_element_get_pad (switch_substream, sinkpad), NULL);
1448         m_currentSubtitleStream = pid;
1449
1450         return 0;
1451 error_out:
1452         eDebug("enableSubtitles needs a tuple as 2nd argument!\n"
1453                 "for gst subtitles (2, subtitle_stream_count, subtitle_type)");
1454         return -1;
1455 }
1456
1457 RESULT eServiceMP3::disableSubtitles(eWidget *parent)
1458 {
1459         eDebug("eServiceMP3::disableSubtitles");
1460         delete m_subtitle_widget;
1461         m_subtitle_widget = 0;
1462         return 0;
1463 }
1464
1465 PyObject *eServiceMP3::getCachedSubtitle()
1466 {
1467         eDebug("eServiceMP3::getCachedSubtitle");
1468         Py_RETURN_NONE;
1469 }
1470
1471 PyObject *eServiceMP3::getSubtitleList()
1472 {
1473         eDebug("eServiceMP3::getSubtitleList");
1474
1475         ePyObject l = PyList_New(0);
1476         int stream_count[sizeof(subtype_t)];
1477         for ( unsigned int i = 0; i < sizeof(subtype_t); i++ )
1478                 stream_count[i] = 0;
1479
1480         for (std::vector<subtitleStream>::iterator IterSubtitleStream(m_subtitleStreams.begin()); IterSubtitleStream != m_subtitleStreams.end(); ++IterSubtitleStream)
1481         {
1482                 subtype_t type = IterSubtitleStream->type;
1483                 ePyObject tuple = PyTuple_New(5);
1484                 PyTuple_SET_ITEM(tuple, 0, PyInt_FromLong(2));
1485                 PyTuple_SET_ITEM(tuple, 1, PyInt_FromLong(stream_count[type]));
1486                 PyTuple_SET_ITEM(tuple, 2, PyInt_FromLong(int(type)));
1487                 PyTuple_SET_ITEM(tuple, 3, PyInt_FromLong(0));
1488                 PyTuple_SET_ITEM(tuple, 4, PyString_FromString((IterSubtitleStream->language_code).c_str()));
1489                 PyList_Append(l, tuple);
1490                 Py_DECREF(tuple);
1491                 stream_count[type]++;
1492         }
1493         return l;
1494 }
1495
1496 #else
1497 #warning gstreamer not available, not building media player
1498 #endif