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

   1 #ifdef HAVE_GSTREAMER
   2
   3         /* note: this requires gstreamer 0.10.x and a big list of plugins. */
   4         /* it's currently hardcoded to use a big-endian alsasink as sink. */
   5 #include <lib/base/eerror.h>
   6 #include <lib/base/object.h>
   7 #include <lib/base/ebase.h>
   8 #include <string>
   9 #include <lib/service/servicemp3.h>
  10 #include <lib/service/service.h>
  11 #include <lib/components/file_eraser.h>
  12 #include <lib/base/init_num.h>
  13 #include <lib/base/init.h>
  14 #include <gst/gst.h>
  15 #include <gst/pbutils/missing-plugins.h>
  16 #include <sys/stat.h>
  17 /* for subtitles */
  18 #include <lib/gui/esubtitle.h>
  19
  20 // eServiceFactoryMP3
  21
  22 eServiceFactoryMP3::eServiceFactoryMP3()
  23 {
  24         ePtr<eServiceCenter> sc;
  25
  26         eServiceCenter::getPrivInstance(sc);
  27         if (sc)
  28         {
  29                 std::list<std::string> extensions;
  30                 extensions.push_back("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, *id3demux;
 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                                 id3demux = gst_element_factory_make("id3demux", "id3demux");
 377                                 if ( !id3demux )
 378                                 {
 379                                         m_error_message += "failed to create Gstreamer element id3demux\n";
 380                                         break;
 381                                 }
 382                                 parser = gst_element_factory_make("mp3parse", "audiosink");
 383                                 if ( !parser )
 384                                 {
 385                                         m_error_message += "failed to create Gstreamer element mp3parse\n";
 386                                         break;
 387                                 }
 388                                 sink = gst_element_factory_make("dvbaudiosink", "audiosink2");
 389                                 if ( !sink )
 390                                         m_error_message += "failed to create Gstreamer element dvbaudiosink\n";
 391                                 else
 392                                         all_ok = 1;
 393                                 break;
 394                         }
 395                         case atAAC:
 396                         {
 397                                 if ( !audiodemux )
 398                                 {
 399                                         m_error_message += "cannot parse raw AAC audio\n";
 400                                         break;
 401                                 }
 402                                 sink = gst_element_factory_make("dvbaudiosink", "audiosink");
 403                                 if (!sink)
 404                                         m_error_message += "failed to create Gstreamer element dvbaudiosink\n";
 405                                 else
 406                                         all_ok = 1;
 407                                 break;
 408                         }
 409                         case atAC3:
 410                         {
 411                                 if ( !audiodemux )
 412                                 {
 413                                         m_error_message += "cannot parse raw AC3 audio\n";
 414                                         break;
 415                                 }
 416                                 sink = gst_element_factory_make("dvbaudiosink", "audiosink");
 417                                 if ( !sink )
 418                                         m_error_message += "failed to create Gstreamer element dvbaudiosink\n";
 419                                 else
 420                                         all_ok = 1;
 421                                 break;
 422                         }
 423                         default:
 424                         {       /* filesrc -> decodebin -> audioconvert -> capsfilter -> alsasink */
 425                                 decoder = gst_element_factory_make ("decodebin", "decoder");
 426                                 if (!decoder)
 427                                         m_error_message += "failed to create Gstreamer element decodebin\n";
 428
 429                                 conv = gst_element_factory_make ("audioconvert", "converter");
 430                                 if (!conv)
 431                                         m_error_message += "failed to create Gstreamer element audioconvert\n";
 432
 433                                 flt = gst_element_factory_make ("capsfilter", "flt");
 434                                 if (!flt)
 435                                         m_error_message += "failed to create Gstreamer element capsfilter\n";
 436
 437                                         /* for some reasons, we need to set the sample format to depth/width=16, because auto negotiation doesn't work. */
 438                                         /* endianness, however, is not required to be set anymore. */
 439                                 if (flt)
 440                                 {
 441                                         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);
 442                                         g_object_set (G_OBJECT (flt), "caps", caps, NULL);
 443                                         gst_caps_unref(caps);
 444                                 }
 445
 446                                 sink = gst_element_factory_make ("alsasink", "alsa-output");
 447                                 if (!sink)
 448                                         m_error_message += "failed to create Gstreamer element alsasink\n";
 449
 450                                 if (source && decoder && conv && sink)
 451                                         all_ok = 1;
 452                                 break;
 453                         }
 454                 }
 455
 456         }
 457         if (m_gst_pipeline && all_ok)
 458         {
 459                 gst_bus_set_sync_handler(gst_pipeline_get_bus (GST_PIPELINE (m_gst_pipeline)), gstBusSyncHandler, this);
 460
 461                 if ( sourceinfo.containertype == ctCDA )
 462                 {
 463                         queue_audio = gst_element_factory_make("queue", "queue_audio");
 464                         g_object_set (G_OBJECT (sink), "preroll-queue-len", 80, NULL);
 465                         gst_bin_add_many (GST_BIN (m_gst_pipeline), source, queue_audio, conv, sink, NULL);
 466                         gst_element_link_many(source, queue_audio, conv, sink, NULL);
 467                 }
 468                 else if ( sourceinfo.is_video )
 469                 {
 470                         char srt_filename[strlen(filename)+1];
 471                         strncpy(srt_filename,filename,strlen(filename)-3);
 472                         srt_filename[strlen(filename)-3]='\0';
 473                         strcat(srt_filename, "srt");
 474                         struct stat buffer;
 475                         if (stat(srt_filename, &buffer) == 0)
 476                         {
 477                                 eDebug("subtitle file found: %s",srt_filename);
 478                                 GstElement *subsource = gst_element_factory_make ("filesrc", "srt_source");
 479                                 g_object_set (G_OBJECT (subsource), "location", srt_filename, NULL);
 480                                 gst_bin_add(GST_BIN (m_gst_pipeline), subsource);
 481                                 GstPad *switchpad = gstCreateSubtitleSink(this, stSRT);
 482                                 gst_pad_link(gst_element_get_pad (subsource, "src"), switchpad);
 483                                 subtitleStream subs;
 484                                 subs.pad = switchpad;
 485                                 subs.type = stSRT;
 486                                 subs.language_code = std::string("und");
 487                                 m_subtitleStreams.push_back(subs);
 488                         }
 489                         gst_bin_add_many(GST_BIN(m_gst_pipeline), source, videodemux, audio, queue_audio, video, queue_video, switch_audio, NULL);
 490
 491                         if ( sourceinfo.containertype == ctVCD && gst_bin_get_by_name(GST_BIN(m_gst_pipeline),"file-source") )
 492                         {
 493                                 eDebug("this is a fake video cd... we use filesrc ! cdxaparse !");
 494                                 GstElement *cdxaparse = gst_element_factory_make("cdxaparse", "cdxaparse");
 495                                 gst_bin_add(GST_BIN(m_gst_pipeline), cdxaparse);
 496                                 gst_element_link(source, cdxaparse);
 497                                 gst_element_link(cdxaparse, videodemux);
 498                         }
 499                         else
 500                                 gst_element_link(source, videodemux);
 501
 502                         gst_element_link(switch_audio, queue_audio);
 503                         gst_element_link(queue_audio, audio);
 504                         gst_element_link(queue_video, video);
 505                         g_signal_connect(videodemux, "pad-added", G_CALLBACK (gstCBpadAdded), this);
 506
 507                 } else /* is audio*/
 508                 {
 509                         if ( decoder )
 510                         {
 511                                 queue_audio = gst_element_factory_make("queue", "queue_audio");
 512
 513                                 g_signal_connect (decoder, "new-decoded-pad", G_CALLBACK(gstCBnewPad), this);
 514                                 g_signal_connect (decoder, "unknown-type", G_CALLBACK(gstCBunknownType), this);
 515
 516                                 g_object_set (G_OBJECT (sink), "preroll-queue-len", 80, NULL);
 517
 518                                         /* gst_bin will take the 'floating references' */
 519                                 gst_bin_add_many (GST_BIN (m_gst_pipeline),
 520                                                         source, queue_audio, decoder, NULL);
 521
 522                                         /* in decodebin's case we can just connect the source with the decodebin, and decodebin will take care about id3demux (or whatever is required) */
 523                                 gst_element_link_many(source, queue_audio, decoder, NULL);
 524
 525                                         /* create audio bin with the audioconverter, the capsfilter and the audiosink */
 526                                 audio = gst_bin_new ("audiobin");
 527
 528                                 GstPad *audiopad = gst_element_get_static_pad (conv, "sink");
 529                                 gst_bin_add_many(GST_BIN(audio), conv, flt, sink, NULL);
 530                                 gst_element_link_many(conv, flt, sink, NULL);
 531                                 gst_element_add_pad(audio, gst_ghost_pad_new ("sink", audiopad));
 532                                 gst_object_unref(audiopad);
 533                                 gst_bin_add (GST_BIN(m_gst_pipeline), audio);
 534                         }
 535                         else
 536                         {
 537                                 gst_bin_add_many (GST_BIN (m_gst_pipeline), source, sink, NULL);
 538                                 if ( parser && id3demux )
 539                                 {
 540                                         gst_bin_add_many (GST_BIN (m_gst_pipeline), parser, id3demux, NULL);
 541                                         gst_element_link(source, id3demux);
 542                                         g_signal_connect(id3demux, "pad-added", G_CALLBACK (gstCBpadAdded), this);
 543                                         gst_element_link(parser, sink);
 544                                 }
 545                                 if ( audiodemux )
 546                                 {
 547                                         gst_bin_add (GST_BIN (m_gst_pipeline), audiodemux);
 548                                         g_signal_connect(audiodemux, "pad-added", G_CALLBACK (gstCBpadAdded), this);
 549                                         gst_element_link(source, audiodemux);
 550                                 }
 551                                 audioStream audio;
 552                                 audio.type = sourceinfo.audiotype;
 553                                 m_audioStreams.push_back(audio);
 554                         }
 555                 }
 556         } else
 557         {
 558                 m_event((iPlayableService*)this, evUser+12);
 559
 560                 if (m_gst_pipeline)
 561                         gst_object_unref(GST_OBJECT(m_gst_pipeline));
 562                 if (source)
 563                         gst_object_unref(GST_OBJECT(source));
 564                 if (decoder)
 565                         gst_object_unref(GST_OBJECT(decoder));
 566                 if (conv)
 567                         gst_object_unref(GST_OBJECT(conv));
 568                 if (sink)
 569                         gst_object_unref(GST_OBJECT(sink));
 570
 571                 if (audio)
 572                         gst_object_unref(GST_OBJECT(audio));
 573                 if (queue_audio)
 574                         gst_object_unref(GST_OBJECT(queue_audio));
 575                 if (video)
 576                         gst_object_unref(GST_OBJECT(video));
 577                 if (queue_video)
 578                         gst_object_unref(GST_OBJECT(queue_video));
 579                 if (videodemux)
 580                         gst_object_unref(GST_OBJECT(videodemux));
 581                 if (switch_audio)
 582                         gst_object_unref(GST_OBJECT(switch_audio));
 583
 584                 eDebug("sorry, can't play: %s",m_error_message.c_str());
 585                 m_gst_pipeline = 0;
 586         }
 587
 588         gst_element_set_state (m_gst_pipeline, GST_STATE_PLAYING);
 589 }
 590
 591 eServiceMP3::~eServiceMP3()
 592 {
 593         delete m_subtitle_widget;
 594         if (m_state == stRunning)
 595                 stop();
 596
 597         if (m_stream_tags)
 598                 gst_tag_list_free(m_stream_tags);
 599
 600         if (m_gst_pipeline)
 601         {
 602                 gst_object_unref (GST_OBJECT (m_gst_pipeline));
 603                 eDebug("SERVICEMP3 destruct!");
 604         }
 605 }
 606
 607 DEFINE_REF(eServiceMP3);
 608
 609 RESULT eServiceMP3::connectEvent(const Slot2<void,iPlayableService*,int> &event, ePtr<eConnection> &connection)
 610 {
 611         connection = new eConnection((iPlayableService*)this, m_event.connect(event));
 612         return 0;
 613 }
 614
 615 RESULT eServiceMP3::start()
 616 {
 617         assert(m_state == stIdle);
 618
 619         m_state = stRunning;
 620         if (m_gst_pipeline)
 621         {
 622                 eDebug("starting pipeline");
 623                 gst_element_set_state (m_gst_pipeline, GST_STATE_PLAYING);
 624         }
 625         m_event(this, evStart);
 626         return 0;
 627 }
 628
 629 RESULT eServiceMP3::stop()
 630 {
 631         assert(m_state != stIdle);
 632         if (m_state == stStopped)
 633                 return -1;
 634         eDebug("MP3: %s stop\n", m_filename.c_str());
 635         gst_element_set_state(m_gst_pipeline, GST_STATE_NULL);
 636         m_state = stStopped;
 637         return 0;
 638 }
 639
 640 RESULT eServiceMP3::setTarget(int target)
 641 {
 642         return -1;
 643 }
 644
 645 RESULT eServiceMP3::pause(ePtr<iPauseableService> &ptr)
 646 {
 647         ptr=this;
 648         return 0;
 649 }
 650
 651 RESULT eServiceMP3::setSlowMotion(int ratio)
 652 {
 653         /* we can't do slomo yet */
 654         return -1;
 655 }
 656
 657 RESULT eServiceMP3::setFastForward(int ratio)
 658 {
 659         m_currentTrickRatio = ratio;
 660         if (ratio)
 661                 m_seekTimeout->start(1000, 0);
 662         else
 663                 m_seekTimeout->stop();
 664         return 0;
 665 }
 666
 667 void eServiceMP3::seekTimeoutCB()
 668 {
 669         pts_t ppos, len;
 670         getPlayPosition(ppos);
 671         getLength(len);
 672         ppos += 90000*m_currentTrickRatio;
 673
 674         if (ppos < 0)
 675         {
 676                 ppos = 0;
 677                 m_seekTimeout->stop();
 678         }
 679         if (ppos > len)
 680         {
 681                 ppos = 0;
 682                 stop();
 683                 m_seekTimeout->stop();
 684                 return;
 685         }
 686         seekTo(ppos);
 687 }
 688
 689                 // iPausableService
 690 RESULT eServiceMP3::pause()
 691 {
 692         if (!m_gst_pipeline)
 693                 return -1;
 694         GstStateChangeReturn res = gst_element_set_state(m_gst_pipeline, GST_STATE_PAUSED);
 695         if (res == GST_STATE_CHANGE_ASYNC)
 696         {
 697                 pts_t ppos;
 698                 getPlayPosition(ppos);
 699                 seekTo(ppos);
 700         }
 701         return 0;
 702 }
 703
 704 RESULT eServiceMP3::unpause()
 705 {
 706         if (!m_gst_pipeline)
 707                 return -1;
 708
 709         GstStateChangeReturn res;
 710         res = gst_element_set_state(m_gst_pipeline, GST_STATE_PLAYING);
 711         return 0;
 712 }
 713
 714         /* iSeekableService */
 715 RESULT eServiceMP3::seek(ePtr<iSeekableService> &ptr)
 716 {
 717         ptr = this;
 718         return 0;
 719 }
 720
 721 RESULT eServiceMP3::getLength(pts_t &pts)
 722 {
 723         if (!m_gst_pipeline)
 724                 return -1;
 725         if (m_state != stRunning)
 726                 return -1;
 727
 728         GstFormat fmt = GST_FORMAT_TIME;
 729         gint64 len;
 730
 731         if (!gst_element_query_duration(m_gst_pipeline, &fmt, &len))
 732                 return -1;
 733
 734                 /* len is in nanoseconds. we have 90 000 pts per second. */
 735
 736         pts = len / 11111;
 737         return 0;
 738 }
 739
 740 RESULT eServiceMP3::seekTo(pts_t to)
 741 {
 742         if (!m_gst_pipeline)
 743                 return -1;
 744
 745                 /* convert pts to nanoseconds */
 746         gint64 time_nanoseconds = to * 11111LL;
 747         if (!gst_element_seek (m_gst_pipeline, 1.0, GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH,
 748                 GST_SEEK_TYPE_SET, time_nanoseconds,
 749                 GST_SEEK_TYPE_NONE, GST_CLOCK_TIME_NONE))
 750         {
 751                 eDebug("SEEK failed");
 752                 return -1;
 753         }
 754         return 0;
 755 }
 756
 757 RESULT eServiceMP3::seekRelative(int direction, pts_t to)
 758 {
 759         if (!m_gst_pipeline)
 760                 return -1;
 761
 762         pts_t ppos;
 763         getPlayPosition(ppos);
 764         ppos += to * direction;
 765         if (ppos < 0)
 766                 ppos = 0;
 767         seekTo(ppos);
 768
 769         return 0;
 770 }
 771
 772 RESULT eServiceMP3::getPlayPosition(pts_t &pts)
 773 {
 774         if (!m_gst_pipeline)
 775                 return -1;
 776         if (m_state != stRunning)
 777                 return -1;
 778
 779         GstFormat fmt = GST_FORMAT_TIME;
 780         gint64 len;
 781
 782         if (!gst_element_query_position(m_gst_pipeline, &fmt, &len))
 783                 return -1;
 784
 785                 /* len is in nanoseconds. we have 90 000 pts per second. */
 786         pts = len / 11111;
 787         return 0;
 788 }
 789
 790 RESULT eServiceMP3::setTrickmode(int trick)
 791 {
 792                 /* trickmode is not yet supported by our dvbmediasinks. */
 793         return -1;
 794 }
 795
 796 RESULT eServiceMP3::isCurrentlySeekable()
 797 {
 798         return 1;
 799 }
 800
 801 RESULT eServiceMP3::info(ePtr<iServiceInformation>&i)
 802 {
 803         i = this;
 804         return 0;
 805 }
 806
 807 RESULT eServiceMP3::getName(std::string &name)
 808 {
 809         name = m_filename;
 810         size_t n = name.rfind('/');
 811         if (n != std::string::npos)
 812                 name = name.substr(n + 1);
 813         return 0;
 814 }
 815
 816 int eServiceMP3::getInfo(int w)
 817 {
 818         gchar *tag = 0;
 819
 820         switch (w)
 821         {
 822         case sTitle:
 823         case sArtist:
 824         case sAlbum:
 825         case sComment:
 826         case sTracknumber:
 827         case sGenre:
 828         case sVideoType:
 829         case sTimeCreate:
 830         case sUser+12:
 831                 return resIsString;
 832         case sCurrentTitle:
 833                 tag = GST_TAG_TRACK_NUMBER;
 834                 break;
 835         case sTotalTitles:
 836                 tag = GST_TAG_TRACK_COUNT;
 837                 break;
 838         default:
 839                 return resNA;
 840         }
 841
 842         if (!m_stream_tags || !tag)
 843                 return 0;
 844
 845         guint value;
 846         if (gst_tag_list_get_uint(m_stream_tags, tag, &value))
 847                 return (int) value;
 848
 849         return 0;
 850
 851 }
 852
 853 std::string eServiceMP3::getInfoString(int w)
 854 {
 855         if ( !m_stream_tags )
 856                 return "";
 857         gchar *tag = 0;
 858         switch (w)
 859         {
 860         case sTitle:
 861                 tag = GST_TAG_TITLE;
 862                 break;
 863         case sArtist:
 864                 tag = GST_TAG_ARTIST;
 865                 break;
 866         case sAlbum:
 867                 tag = GST_TAG_ALBUM;
 868                 break;
 869         case sComment:
 870                 tag = GST_TAG_COMMENT;
 871                 break;
 872         case sTracknumber:
 873                 tag = GST_TAG_TRACK_NUMBER;
 874                 break;
 875         case sGenre:
 876                 tag = GST_TAG_GENRE;
 877                 break;
 878         case sVideoType:
 879                 tag = GST_TAG_VIDEO_CODEC;
 880                 break;
 881         case sTimeCreate:
 882                 GDate *date;
 883                 if (gst_tag_list_get_date(m_stream_tags, GST_TAG_DATE, &date))
 884                 {
 885                         gchar res[5];
 886                         g_date_strftime (res, sizeof(res), "%Y", date);
 887                         return (std::string)res;
 888                 }
 889                 break;
 890         case sUser+12:
 891                 return m_error_message;
 892         default:
 893                 return "";
 894         }
 895         if ( !tag )
 896                 return "";
 897         gchar *value;
 898         if (gst_tag_list_get_string(m_stream_tags, tag, &value))
 899         {
 900                 std::string res = value;
 901                 g_free(value);
 902                 return res;
 903         }
 904         return "";
 905 }
 906
 907 RESULT eServiceMP3::audioChannel(ePtr<iAudioChannelSelection> &ptr)
 908 {
 909         ptr = this;
 910         return 0;
 911 }
 912
 913 RESULT eServiceMP3::audioTracks(ePtr<iAudioTrackSelection> &ptr)
 914 {
 915         ptr = this;
 916         return 0;
 917 }
 918
 919 RESULT eServiceMP3::subtitle(ePtr<iSubtitleOutput> &ptr)
 920 {
 921         ptr = this;
 922         return 0;
 923 }
 924
 925 int eServiceMP3::getNumberOfTracks()
 926 {
 927         return m_audioStreams.size();
 928 }
 929
 930 int eServiceMP3::getCurrentTrack()
 931 {
 932         return m_currentAudioStream;
 933 }
 934
 935 RESULT eServiceMP3::selectTrack(unsigned int i)
 936 {
 937         int ret = selectAudioStream(i);
 938         /* flush */
 939         pts_t ppos;
 940         getPlayPosition(ppos);
 941         seekTo(ppos);
 942
 943         return ret;
 944 }
 945
 946 int eServiceMP3::selectAudioStream(int i)
 947 {
 948         gint nb_sources;
 949         GstPad *active_pad;
 950         GstElement *switch_audio = gst_bin_get_by_name(GST_BIN(m_gst_pipeline),"switch_audio");
 951         if ( !switch_audio )
 952         {
 953                 eDebug("can't switch audio tracks! gst-plugin-selector needed");
 954                 return -1;
 955         }
 956         g_object_get (G_OBJECT (switch_audio), "n-pads", &nb_sources, NULL);
 957         if ( (unsigned int)i >= m_audioStreams.size() || i >= nb_sources || (unsigned int)m_currentAudioStream >= m_audioStreams.size() )
 958                 return -2;
 959         char sinkpad[8];
 960         sprintf(sinkpad, "sink%d", i);
 961         g_object_set (G_OBJECT (switch_audio), "active-pad", gst_element_get_pad (switch_audio, sinkpad), NULL);
 962         g_object_get (G_OBJECT (switch_audio), "active-pad", &active_pad, NULL);
 963         gchar *name;
 964         name = gst_pad_get_name (active_pad);
 965         eDebug ("switched audio to (%s)", name);
 966         g_free(name);
 967         m_currentAudioStream = i;
 968         return 0;
 969 }
 970
 971 int eServiceMP3::getCurrentChannel()
 972 {
 973         return STEREO;
 974 }
 975
 976 RESULT eServiceMP3::selectChannel(int i)
 977 {
 978         eDebug("eServiceMP3::selectChannel(%i)",i);
 979         return 0;
 980 }
 981
 982 RESULT eServiceMP3::getTrackInfo(struct iAudioTrackInfo &info, unsigned int i)
 983 {
 984 //      eDebug("eServiceMP3::getTrackInfo(&info, %i)",i);
 985         if (i >= m_audioStreams.size())
 986                 return -2;
 987         if (m_audioStreams[i].type == atMPEG)
 988                 info.m_description = "MPEG";
 989         else if (m_audioStreams[i].type == atMP3)
 990                 info.m_description = "MP3";
 991         else if (m_audioStreams[i].type == atAC3)
 992                 info.m_description = "AC3";
 993         else if (m_audioStreams[i].type == atAAC)
 994                 info.m_description = "AAC";
 995         else if (m_audioStreams[i].type == atDTS)
 996                 info.m_description = "DTS";
 997         else if (m_audioStreams[i].type == atPCM)
 998                 info.m_description = "PCM";
 999         else if (m_audioStreams[i].type == atOGG)
1000                 info.m_description = "OGG";
1001         else
1002                 info.m_description = "???";
1003         if (info.m_language.empty())
1004                 info.m_language = m_audioStreams[i].language_code;
1005         return 0;
1006 }
1007
1008 void eServiceMP3::gstBusCall(GstBus *bus, GstMessage *msg)
1009 {
1010         if (!msg)
1011                 return;
1012         gchar *sourceName;
1013         GstObject *source;
1014
1015         source = GST_MESSAGE_SRC(msg);
1016         sourceName = gst_object_get_name(source);
1017 #if 0
1018         if (gst_message_get_structure(msg))
1019         {
1020                 gchar *string = gst_structure_to_string(gst_message_get_structure(msg));
1021                 eDebug("gst_message from %s: %s", sourceName, string);
1022                 g_free(string);
1023         }
1024         else
1025                 eDebug("gst_message from %s: %s (without structure)", sourceName, GST_MESSAGE_TYPE_NAME(msg));
1026 #endif
1027         switch (GST_MESSAGE_TYPE (msg))
1028         {
1029         case GST_MESSAGE_EOS:
1030                 m_event((iPlayableService*)this, evEOF);
1031                 break;
1032         case GST_MESSAGE_ERROR:
1033         {
1034                 gchar *debug;
1035                 GError *err;
1036
1037                 gst_message_parse_error (msg, &err, &debug);
1038                 g_free (debug);
1039                 eWarning("Gstreamer error: %s (%i)", err->message, err->code );
1040                 if ( err->domain == GST_STREAM_ERROR && err->code == GST_STREAM_ERROR_DECODE )
1041                 {
1042                         if ( g_strrstr(sourceName, "videosink") )
1043                                 m_event((iPlayableService*)this, evUser+11);
1044                 }
1045                 g_error_free(err);
1046                         /* TODO: signal error condition to user */
1047                 break;
1048         }
1049         case GST_MESSAGE_TAG:
1050         {
1051                 GstTagList *tags, *result;
1052                 gst_message_parse_tag(msg, &tags);
1053
1054                 result = gst_tag_list_merge(m_stream_tags, tags, GST_TAG_MERGE_PREPEND);
1055                 if (result)
1056                 {
1057                         if (m_stream_tags)
1058                                 gst_tag_list_free(m_stream_tags);
1059                         m_stream_tags = result;
1060                 }
1061
1062                 gchar *g_audiocodec;
1063                 if ( gst_tag_list_get_string(tags, GST_TAG_AUDIO_CODEC, &g_audiocodec) && m_audioStreams.size() == 0 )
1064                 {
1065                         GstPad* pad = gst_element_get_pad (GST_ELEMENT(source), "src");
1066                         GstCaps* caps = gst_pad_get_caps(pad);
1067                         GstStructure* str = gst_caps_get_structure(caps, 0);
1068                         if ( !str )
1069                                 break;
1070                         audioStream audio;
1071                         audio.type = gstCheckAudioPad(str);
1072                         m_audioStreams.push_back(audio);
1073                 }
1074
1075                 GValue *gv_image = gst_tag_list_get_value_index(tags, GST_TAG_IMAGE, 0);
1076                 if ( gv_image )
1077                 {
1078                         GstBuffer *buf_image;
1079                         buf_image = gst_value_get_buffer (gv_image);
1080                         int fd = open("/tmp/.id3coverart", O_CREAT|O_WRONLY|O_TRUNC, 0644);
1081                         int ret = write(fd, GST_BUFFER_DATA(buf_image), GST_BUFFER_SIZE(buf_image));
1082                         close(fd);
1083                         m_event((iPlayableService*)this, evUser+13);
1084                 }
1085
1086                 gst_tag_list_free(tags);
1087                 m_event((iPlayableService*)this, evUpdatedInfo);
1088                 break;
1089         }
1090         case GST_MESSAGE_ASYNC_DONE:
1091         {
1092                 GstTagList *tags;
1093                 for (std::vector<audioStream>::iterator IterAudioStream(m_audioStreams.begin()); IterAudioStream != m_audioStreams.end(); ++IterAudioStream)
1094                 {
1095                         if ( IterAudioStream->pad )
1096                         {
1097                                 g_object_get(IterAudioStream->pad, "tags", &tags, NULL);
1098                                 gchar *g_language;
1099                                 if ( gst_is_tag_list(tags) && gst_tag_list_get_string(tags, GST_TAG_LANGUAGE_CODE, &g_language) )
1100                                 {
1101                                         eDebug("found audio language %s",g_language);
1102                                         IterAudioStream->language_code = std::string(g_language);
1103                                         g_free (g_language);
1104                                 }
1105                         }
1106                 }
1107                 for (std::vector<subtitleStream>::iterator IterSubtitleStream(m_subtitleStreams.begin()); IterSubtitleStream != m_subtitleStreams.end(); ++IterSubtitleStream)
1108                 {
1109                         if ( IterSubtitleStream->pad )
1110                         {
1111                                 g_object_get(IterSubtitleStream->pad, "tags", &tags, NULL);
1112                                 gchar *g_language;
1113                                 if ( gst_is_tag_list(tags) && gst_tag_list_get_string(tags, GST_TAG_LANGUAGE_CODE, &g_language) )
1114                                 {
1115                                         eDebug("found subtitle language %s",g_language);
1116                                         IterSubtitleStream->language_code = std::string(g_language);
1117                                         g_free (g_language);
1118                                 }
1119                         }
1120                 }
1121         }
1122         case GST_MESSAGE_ELEMENT:
1123         {
1124                 if ( gst_is_missing_plugin_message(msg) )
1125                 {
1126                         gchar *description = gst_missing_plugin_message_get_description(msg);
1127                         if ( description )
1128                         {
1129                                 m_error_message = "GStreamer plugin " + (std::string)description + " not available!\n";
1130                                 g_free(description);
1131                                 m_event((iPlayableService*)this, evUser+12);
1132                         }
1133                 }
1134         }
1135         default:
1136                 break;
1137         }
1138         g_free (sourceName);
1139 }
1140
1141 GstBusSyncReply eServiceMP3::gstBusSyncHandler(GstBus *bus, GstMessage *message, gpointer user_data)
1142 {
1143         eServiceMP3 *_this = (eServiceMP3*)user_data;
1144         _this->m_pump.send(1);
1145                 /* wake */
1146         return GST_BUS_PASS;
1147 }
1148
1149 audiotype_t eServiceMP3::gstCheckAudioPad(GstStructure* structure)
1150 {
1151         const gchar* type;
1152         type = gst_structure_get_name(structure);
1153
1154         if (!strcmp(type, "audio/mpeg")) {
1155                         gint mpegversion, layer = 0;
1156                         gst_structure_get_int (structure, "mpegversion", &mpegversion);
1157                         gst_structure_get_int (structure, "layer", &layer);
1158                         eDebug("mime audio/mpeg version %d layer %d", mpegversion, layer);
1159                         switch (mpegversion) {
1160                                 case 1:
1161                                 {
1162                                         if ( layer == 3 )
1163                                                 return atMP3;
1164                                         else
1165                                                 return atMPEG;
1166                                 }
1167                                 case 2:
1168                                         return atMPEG;
1169                                 case 4:
1170                                         return atAAC;
1171                                 default:
1172                                         return atUnknown;
1173                         }
1174                 }
1175         else
1176         {
1177                 eDebug("mime %s", type);
1178                 if (!strcmp(type, "audio/x-ac3") || !strcmp(type, "audio/ac3"))
1179                         return atAC3;
1180                 else if (!strcmp(type, "audio/x-dts") || !strcmp(type, "audio/dts"))
1181                         return atDTS;
1182                 else if (!strcmp(type, "audio/x-raw-int"))
1183                         return atPCM;
1184         }
1185         return atUnknown;
1186 }
1187
1188 void eServiceMP3::gstCBpadAdded(GstElement *decodebin, GstPad *pad, gpointer user_data)
1189 {
1190         const gchar* type;
1191         GstCaps* caps;
1192         GstStructure* str;
1193         caps = gst_pad_get_caps(pad);
1194         str = gst_caps_get_structure(caps, 0);
1195         type = gst_structure_get_name(str);
1196
1197         eDebug("A new pad %s:%s was created", GST_OBJECT_NAME (decodebin), GST_OBJECT_NAME (pad));
1198
1199         eServiceMP3 *_this = (eServiceMP3*)user_data;
1200         GstBin *pipeline = GST_BIN(_this->m_gst_pipeline);
1201         if (g_strrstr(type,"audio"))
1202         {
1203                 audioStream audio;
1204                 audio.type = _this->gstCheckAudioPad(str);
1205                 GstElement *switch_audio = gst_bin_get_by_name(pipeline , "switch_audio");
1206                 if ( switch_audio )
1207                 {
1208                         GstPad *sinkpad = gst_element_get_request_pad (switch_audio, "sink%d");
1209                         gst_pad_link(pad, sinkpad);
1210                         audio.pad = sinkpad;
1211                         _this->m_audioStreams.push_back(audio);
1212
1213                         if ( _this->m_audioStreams.size() == 1 )
1214                         {
1215                                 _this->selectAudioStream(0);
1216                                 gst_element_set_state (_this->m_gst_pipeline, GST_STATE_PLAYING);
1217                         }
1218                         else
1219                                 g_object_set (G_OBJECT (switch_audio), "select-all", FALSE, NULL);
1220                 }
1221                 else
1222                 {
1223                         GstElement *queue_audio = gst_bin_get_by_name(pipeline , "queue_audio");
1224                         if ( queue_audio )
1225                         {
1226                                 gst_pad_link(pad, gst_element_get_static_pad(queue_audio, "sink"));
1227                                 _this->m_audioStreams.push_back(audio);
1228                         }
1229                         else
1230                                 gst_pad_link(pad, gst_element_get_static_pad(gst_bin_get_by_name(pipeline , "audiosink"), "sink"));
1231                 }
1232         }
1233         if (g_strrstr(type,"video"))
1234         {
1235                 gst_pad_link(pad, gst_element_get_static_pad(gst_bin_get_by_name(pipeline,"queue_video"), "sink"));
1236         }
1237         if (g_strrstr(type,"application/x-ssa") || g_strrstr(type,"application/x-ass"))
1238         {
1239                 GstPad *switchpad = _this->gstCreateSubtitleSink(_this, stSSA);
1240                 gst_pad_link(pad, switchpad);
1241                 subtitleStream subs;
1242                 subs.pad = switchpad;
1243                 subs.type = stSSA;
1244                 _this->m_subtitleStreams.push_back(subs);
1245         }
1246         if (g_strrstr(type,"text/plain"))
1247         {
1248                 GstPad *switchpad = _this->gstCreateSubtitleSink(_this, stPlainText);
1249                 gst_pad_link(pad, switchpad);
1250                 subtitleStream subs;
1251                 subs.pad = switchpad;
1252                 subs.type = stPlainText;
1253                 _this->m_subtitleStreams.push_back(subs);
1254         }
1255 }
1256
1257 GstPad* eServiceMP3::gstCreateSubtitleSink(eServiceMP3* _this, subtype_t type)
1258 {
1259         GstBin *pipeline = GST_BIN(_this->m_gst_pipeline);
1260         GstElement *switch_subparse = gst_bin_get_by_name(pipeline,"switch_subparse");
1261         if ( !switch_subparse )
1262         {
1263                 switch_subparse = gst_element_factory_make ("input-selector", "switch_subparse");
1264                 GstElement *sink = gst_element_factory_make("fakesink", "sink_subtitles");
1265                 gst_bin_add_many(pipeline, switch_subparse, sink, NULL);
1266                 gst_element_link(switch_subparse, sink);
1267                 g_object_set (G_OBJECT(sink), "signal-handoffs", TRUE, NULL);
1268                 g_object_set (G_OBJECT(sink), "sync", TRUE, NULL);
1269                 g_object_set (G_OBJECT(sink), "async", FALSE, NULL);
1270                 g_signal_connect(sink, "handoff", G_CALLBACK(_this->gstCBsubtitleAvail), _this);
1271
1272                 // order is essential since requested sink pad names can't be explicitely chosen
1273                 GstElement *switch_substream_plain = gst_element_factory_make ("input-selector", "switch_substream_plain");
1274                 gst_bin_add(pipeline, switch_substream_plain);
1275                 GstPad *sinkpad_plain = gst_element_get_request_pad (switch_subparse, "sink%d");
1276                 gst_pad_link(gst_element_get_pad (switch_substream_plain, "src"), sinkpad_plain);
1277
1278                 GstElement *switch_substream_ssa = gst_element_factory_make ("input-selector", "switch_substream_ssa");
1279                 GstElement *ssaparse = gst_element_factory_make("ssaparse", "ssaparse");
1280                 gst_bin_add_many(pipeline, switch_substream_ssa, ssaparse, NULL);
1281                 GstPad *sinkpad_ssa = gst_element_get_request_pad (switch_subparse, "sink%d");
1282                 gst_element_link(switch_substream_ssa, ssaparse);
1283                 gst_pad_link(gst_element_get_pad (ssaparse, "src"), sinkpad_ssa);
1284
1285                 GstElement *switch_substream_srt = gst_element_factory_make ("input-selector", "switch_substream_srt");
1286                 GstElement *srtparse = gst_element_factory_make("subparse", "srtparse");
1287                 gst_bin_add_many(pipeline, switch_substream_srt, srtparse, NULL);
1288                 GstPad *sinkpad_srt = gst_element_get_request_pad (switch_subparse, "sink%d");
1289                 gst_element_link(switch_substream_srt, srtparse);
1290                 gst_pad_link(gst_element_get_pad (srtparse, "src"), sinkpad_srt);
1291                 g_object_set (G_OBJECT(srtparse), "subtitle-encoding", "ISO-8859-15", NULL);
1292         }
1293
1294         switch (type)
1295         {
1296                 case stSSA:
1297                         return gst_element_get_request_pad (gst_bin_get_by_name(pipeline,"switch_substream_ssa"), "sink%d");
1298                 case stSRT:
1299                         return gst_element_get_request_pad (gst_bin_get_by_name(pipeline,"switch_substream_srt"), "sink%d");
1300                 case stPlainText:
1301                 default:
1302                         break;
1303         }
1304         return gst_element_get_request_pad (gst_bin_get_by_name(pipeline,"switch_substream_plain"), "sink%d");
1305 }
1306
1307 void eServiceMP3::gstCBfilterPadAdded(GstElement *filter, GstPad *pad, gpointer user_data)
1308 {
1309         eServiceMP3 *_this = (eServiceMP3*)user_data;
1310         GstElement *decoder = gst_bin_get_by_name(GST_BIN(_this->m_gst_pipeline),"decoder");
1311         gst_pad_link(pad, gst_element_get_static_pad (decoder, "sink"));
1312 }
1313
1314 void eServiceMP3::gstCBnewPad(GstElement *decodebin, GstPad *pad, gboolean last, gpointer user_data)
1315 {
1316         eServiceMP3 *_this = (eServiceMP3*)user_data;
1317         GstCaps *caps;
1318         GstStructure *str;
1319         GstPad *audiopad;
1320
1321         /* only link once */
1322         GstElement *audiobin = gst_bin_get_by_name(GST_BIN(_this->m_gst_pipeline),"audiobin");
1323         audiopad = gst_element_get_static_pad (audiobin, "sink");
1324         if ( !audiopad || GST_PAD_IS_LINKED (audiopad)) {
1325                 eDebug("audio already linked!");
1326                 g_object_unref (audiopad);
1327                 return;
1328         }
1329
1330         /* check media type */
1331         caps = gst_pad_get_caps (pad);
1332         str = gst_caps_get_structure (caps, 0);
1333         eDebug("gst new pad! %s", gst_structure_get_name (str));
1334
1335         if (!g_strrstr (gst_structure_get_name (str), "audio")) {
1336                 gst_caps_unref (caps);
1337                 gst_object_unref (audiopad);
1338                 return;
1339         }
1340
1341         gst_caps_unref (caps);
1342         gst_pad_link (pad, audiopad);
1343 }
1344
1345 void eServiceMP3::gstCBunknownType(GstElement *decodebin, GstPad *pad, GstCaps *caps, gpointer user_data)
1346 {
1347         GstStructure *str;
1348
1349         /* check media type */
1350         caps = gst_pad_get_caps (pad);
1351         str = gst_caps_get_structure (caps, 0);
1352         eDebug("unknown type: %s - this can't be decoded.", gst_structure_get_name (str));
1353         gst_caps_unref (caps);
1354 }
1355
1356 void eServiceMP3::gstPoll(const int&)
1357 {
1358                 /* ok, we have a serious problem here. gstBusSyncHandler sends
1359                    us the wakup signal, but likely before it was posted.
1360                    the usleep, an EVIL HACK (DON'T DO THAT!!!) works around this.
1361
1362                    I need to understand the API a bit more to make this work
1363                    proplerly. */
1364         usleep(1);
1365
1366         GstBus *bus = gst_pipeline_get_bus (GST_PIPELINE (m_gst_pipeline));
1367         GstMessage *message;
1368         while ((message = gst_bus_pop (bus)))
1369         {
1370                 gstBusCall(bus, message);
1371                 gst_message_unref (message);
1372         }
1373 }
1374
1375 eAutoInitPtr<eServiceFactoryMP3> init_eServiceFactoryMP3(eAutoInitNumbers::service+1, "eServiceFactoryMP3");
1376
1377 void eServiceMP3::gstCBsubtitleAvail(GstElement *element, GstBuffer *buffer, GstPad *pad, gpointer user_data)
1378 {
1379         gint64 duration_ns = GST_BUFFER_DURATION(buffer);
1380         const unsigned char *text = (unsigned char *)GST_BUFFER_DATA(buffer);
1381         eDebug("gstCBsubtitleAvail: %s",text);
1382         eServiceMP3 *_this = (eServiceMP3*)user_data;
1383         if ( _this->m_subtitle_widget )
1384         {
1385                 ePangoSubtitlePage page;
1386                 gRGB rgbcol(0xD0,0xD0,0xD0);
1387                 page.m_elements.push_back(ePangoSubtitlePageElement(rgbcol, (const char*)text));
1388                 page.m_timeout = duration_ns / 1000000;
1389                 (_this->m_subtitle_widget)->setPage(page);
1390         }
1391 }
1392
1393 RESULT eServiceMP3::enableSubtitles(eWidget *parent, ePyObject tuple)
1394 {
1395         ePyObject entry;
1396         int tuplesize = PyTuple_Size(tuple);
1397         int pid;
1398         int type;
1399         gint nb_sources;
1400         GstPad *active_pad;
1401         GstElement *switch_substream = NULL;
1402         GstElement *switch_subparse = gst_bin_get_by_name (GST_BIN(m_gst_pipeline), "switch_subparse");
1403
1404         if (!PyTuple_Check(tuple))
1405                 goto error_out;
1406         if (tuplesize < 1)
1407                 goto error_out;
1408         entry = PyTuple_GET_ITEM(tuple, 1);
1409         if (!PyInt_Check(entry))
1410                 goto error_out;
1411         pid = PyInt_AsLong(entry);
1412         entry = PyTuple_GET_ITEM(tuple, 2);
1413         if (!PyInt_Check(entry))
1414                 goto error_out;
1415         type = PyInt_AsLong(entry);
1416
1417         switch ((subtype_t)type)
1418         {
1419                 case stPlainText:
1420                         switch_substream = gst_bin_get_by_name(GST_BIN(m_gst_pipeline),"switch_substream_plain");
1421                         break;
1422                 case stSSA:
1423                         switch_substream = gst_bin_get_by_name(GST_BIN(m_gst_pipeline),"switch_substream_ssa");
1424                         break;
1425                 case stSRT:
1426                         switch_substream = gst_bin_get_by_name(GST_BIN(m_gst_pipeline),"switch_substream_srt");
1427                         break;
1428                 default:
1429                         goto error_out;
1430         }
1431
1432         m_subtitle_widget = new eSubtitleWidget(parent);
1433         m_subtitle_widget->resize(parent->size()); /* full size */
1434
1435         if ( !switch_substream )
1436         {
1437                 eDebug("can't switch subtitle tracks! gst-plugin-selector needed");
1438                 return -2;
1439         }
1440         g_object_get (G_OBJECT (switch_substream), "n-pads", &nb_sources, NULL);
1441         if ( (unsigned int)pid >= m_subtitleStreams.size() || pid >= nb_sources || (unsigned int)m_currentSubtitleStream >= m_subtitleStreams.size() )
1442                 return -2;
1443         g_object_get (G_OBJECT (switch_subparse), "n-pads", &nb_sources, NULL);
1444         if ( type < 0 || type >= nb_sources )
1445                 return -2;
1446
1447         char sinkpad[6];
1448         sprintf(sinkpad, "sink%d", type);
1449         g_object_set (G_OBJECT (switch_subparse), "active-pad", gst_element_get_pad (switch_subparse, sinkpad), NULL);
1450         sprintf(sinkpad, "sink%d", pid);
1451         g_object_set (G_OBJECT (switch_substream), "active-pad", gst_element_get_pad (switch_substream, sinkpad), NULL);
1452         m_currentSubtitleStream = pid;
1453
1454         return 0;
1455 error_out:
1456         eDebug("enableSubtitles needs a tuple as 2nd argument!\n"
1457                 "for gst subtitles (2, subtitle_stream_count, subtitle_type)");
1458         return -1;
1459 }
1460
1461 RESULT eServiceMP3::disableSubtitles(eWidget *parent)
1462 {
1463         eDebug("eServiceMP3::disableSubtitles");
1464         delete m_subtitle_widget;
1465         m_subtitle_widget = 0;
1466         return 0;
1467 }
1468
1469 PyObject *eServiceMP3::getCachedSubtitle()
1470 {
1471         eDebug("eServiceMP3::getCachedSubtitle");
1472         Py_RETURN_NONE;
1473 }
1474
1475 PyObject *eServiceMP3::getSubtitleList()
1476 {
1477         eDebug("eServiceMP3::getSubtitleList");
1478
1479         ePyObject l = PyList_New(0);
1480         int stream_count[sizeof(subtype_t)];
1481         for ( unsigned int i = 0; i < sizeof(subtype_t); i++ )
1482                 stream_count[i] = 0;
1483
1484         for (std::vector<subtitleStream>::iterator IterSubtitleStream(m_subtitleStreams.begin()); IterSubtitleStream != m_subtitleStreams.end(); ++IterSubtitleStream)
1485         {
1486                 subtype_t type = IterSubtitleStream->type;
1487                 ePyObject tuple = PyTuple_New(5);
1488                 PyTuple_SET_ITEM(tuple, 0, PyInt_FromLong(2));
1489                 PyTuple_SET_ITEM(tuple, 1, PyInt_FromLong(stream_count[type]));
1490                 PyTuple_SET_ITEM(tuple, 2, PyInt_FromLong(int(type)));
1491                 PyTuple_SET_ITEM(tuple, 3, PyInt_FromLong(0));
1492                 PyTuple_SET_ITEM(tuple, 4, PyString_FromString((IterSubtitleStream->language_code).c_str()));
1493                 PyList_Append(l, tuple);
1494                 Py_DECREF(tuple);
1495                 stream_count[type]++;
1496         }
1497         return l;
1498 }
1499
1500 #else
1501 #warning gstreamer not available, not building media player
1502 #endif