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("dat");
  40                 extensions.push_back("flac");
  41                 extensions.push_back("mp4");
  42                 sc->addServiceFactory(eServiceFactoryMP3::id, this, extensions);
  43         }
  44
  45         m_service_info = new eStaticServiceMP3Info();
  46 }
  47
  48 eServiceFactoryMP3::~eServiceFactoryMP3()
  49 {
  50         ePtr<eServiceCenter> sc;
  51
  52         eServiceCenter::getPrivInstance(sc);
  53         if (sc)
  54                 sc->removeServiceFactory(eServiceFactoryMP3::id);
  55 }
  56
  57 DEFINE_REF(eServiceFactoryMP3)
  58
  59         // iServiceHandler
  60 RESULT eServiceFactoryMP3::play(const eServiceReference &ref, ePtr<iPlayableService> &ptr)
  61 {
  62                 // check resources...
  63         ptr = new eServiceMP3(ref.path.c_str());
  64         return 0;
  65 }
  66
  67 RESULT eServiceFactoryMP3::record(const eServiceReference &ref, ePtr<iRecordableService> &ptr)
  68 {
  69         ptr=0;
  70         return -1;
  71 }
  72
  73 RESULT eServiceFactoryMP3::list(const eServiceReference &, ePtr<iListableService> &ptr)
  74 {
  75         ptr=0;
  76         return -1;
  77 }
  78
  79 RESULT eServiceFactoryMP3::info(const eServiceReference &ref, ePtr<iStaticServiceInformation> &ptr)
  80 {
  81         ptr = m_service_info;
  82         return 0;
  83 }
  84
  85 class eMP3ServiceOfflineOperations: public iServiceOfflineOperations
  86 {
  87         DECLARE_REF(eMP3ServiceOfflineOperations);
  88         eServiceReference m_ref;
  89 public:
  90         eMP3ServiceOfflineOperations(const eServiceReference &ref);
  91
  92         RESULT deleteFromDisk(int simulate);
  93         RESULT getListOfFilenames(std::list<std::string> &);
  94 };
  95
  96 DEFINE_REF(eMP3ServiceOfflineOperations);
  97
  98 eMP3ServiceOfflineOperations::eMP3ServiceOfflineOperations(const eServiceReference &ref): m_ref((const eServiceReference&)ref)
  99 {
 100 }
 101
 102 RESULT eMP3ServiceOfflineOperations::deleteFromDisk(int simulate)
 103 {
 104         if (simulate)
 105                 return 0;
 106         else
 107         {
 108                 std::list<std::string> res;
 109                 if (getListOfFilenames(res))
 110                         return -1;
 111
 112                 eBackgroundFileEraser *eraser = eBackgroundFileEraser::getInstance();
 113                 if (!eraser)
 114                         eDebug("FATAL !! can't get background file eraser");
 115
 116                 for (std::list<std::string>::iterator i(res.begin()); i != res.end(); ++i)
 117                 {
 118                         eDebug("Removing %s...", i->c_str());
 119                         if (eraser)
 120                                 eraser->erase(i->c_str());
 121                         else
 122                                 ::unlink(i->c_str());
 123                 }
 124
 125                 return 0;
 126         }
 127 }
 128
 129 RESULT eMP3ServiceOfflineOperations::getListOfFilenames(std::list<std::string> &res)
 130 {
 131         res.clear();
 132         res.push_back(m_ref.path);
 133         return 0;
 134 }
 135
 136
 137 RESULT eServiceFactoryMP3::offlineOperations(const eServiceReference &ref, ePtr<iServiceOfflineOperations> &ptr)
 138 {
 139         ptr = new eMP3ServiceOfflineOperations(ref);
 140         return 0;
 141 }
 142
 143 // eStaticServiceMP3Info
 144
 145
 146 // eStaticServiceMP3Info is seperated from eServiceMP3 to give information
 147 // about unopened files.
 148
 149 // probably eServiceMP3 should use this class as well, and eStaticServiceMP3Info
 150 // should have a database backend where ID3-files etc. are cached.
 151 // this would allow listing the mp3 database based on certain filters.
 152
 153 DEFINE_REF(eStaticServiceMP3Info)
 154
 155 eStaticServiceMP3Info::eStaticServiceMP3Info()
 156 {
 157 }
 158
 159 RESULT eStaticServiceMP3Info::getName(const eServiceReference &ref, std::string &name)
 160 {
 161         size_t last = ref.path.rfind('/');
 162         if (last != std::string::npos)
 163                 name = ref.path.substr(last+1);
 164         else
 165                 name = ref.path;
 166         return 0;
 167 }
 168
 169 int eStaticServiceMP3Info::getLength(const eServiceReference &ref)
 170 {
 171         return -1;
 172 }
 173
 174 // eServiceMP3
 175
 176 eServiceMP3::eServiceMP3(const char *filename): m_filename(filename), m_pump(eApp, 1)
 177 {
 178         m_seekTimeout = eTimer::create(eApp);
 179         m_stream_tags = 0;
 180         m_currentAudioStream = 0;
 181         m_currentSubtitleStream = 0;
 182         m_subtitle_widget = 0;
 183         m_currentTrickRatio = 0;
 184         CONNECT(m_seekTimeout->timeout, eServiceMP3::seekTimeoutCB);
 185         CONNECT(m_pump.recv_msg, eServiceMP3::gstPoll);
 186         GstElement *source = 0;
 187
 188         GstElement *decoder = 0, *conv = 0, *flt = 0, *sink = 0; /* for audio */
 189
 190         GstElement *audio = 0, *switch_audio = 0, *queue_audio = 0, *video = 0, *queue_video = 0, *videodemux = 0;
 191
 192         m_state = stIdle;
 193         eDebug("SERVICEMP3 construct!");
 194
 195                 /* FIXME: currently, decodebin isn't possible for
 196                    video streams. in that case, make a manual pipeline. */
 197
 198         const char *ext = strrchr(filename, '.');
 199         if (!ext)
 200                 ext = filename;
 201
 202         sourceStream sourceinfo;
 203         if ( (strcasecmp(ext, ".mpeg") && strcasecmp(ext, ".mpg") && strcasecmp(ext, ".vob") && strcasecmp(ext, ".bin") && strcasecmp(ext, ".dat") ) == 0 )
 204                 sourceinfo.containertype = ctMPEGPS;
 205         else if ( strcasecmp(ext, ".ts") == 0 )
 206                 sourceinfo.containertype = ctMPEGTS;
 207         else if ( strcasecmp(ext, ".mkv") == 0 )
 208                 sourceinfo.containertype = ctMKV;
 209         else if ( strcasecmp(ext, ".avi") == 0 )
 210                 sourceinfo.containertype = ctAVI;
 211         else if ( strcasecmp(ext, ".mp4") == 0 )
 212                 sourceinfo.containertype = ctMP4;
 213         else if ( (strncmp(filename, "/autofs/", 8) || strncmp(filename+strlen(filename)-13, "/track-", 7) || strcasecmp(ext, ".wav")) == 0 )
 214                 sourceinfo.containertype = ctCDA;
 215         if ( strcasecmp(ext, ".dat") == 0 )
 216                 sourceinfo.containertype = ctVCD;
 217         if ( (strncmp(filename, "http://", 7)) == 0 )
 218                 sourceinfo.is_streaming = TRUE;
 219
 220         sourceinfo.is_video = ( sourceinfo.containertype && sourceinfo.containertype != ctCDA );
 221
 222         eDebug("filename=%s, containertype=%d, is_video=%d, is_streaming=%d", filename, sourceinfo.containertype, sourceinfo.is_video, sourceinfo.is_streaming);
 223
 224         int all_ok = 0;
 225
 226         m_gst_pipeline = gst_pipeline_new ("mediaplayer");
 227         if (!m_gst_pipeline)
 228                 m_error_message = "failed to create GStreamer pipeline!\n";
 229
 230         if ( sourceinfo.is_streaming )
 231         {
 232                 eDebug("play webradio!");
 233                 source = gst_element_factory_make ("neonhttpsrc", "http-source");
 234                 if (source)
 235                 {
 236                         g_object_set (G_OBJECT (source), "location", filename, NULL);
 237                         g_object_set (G_OBJECT (source), "automatic-redirect", TRUE, NULL);
 238                 }
 239                 else
 240                         m_error_message = "GStreamer plugin neonhttpsrc not available!\n";
 241         }
 242         else if ( sourceinfo.containertype == ctCDA )
 243         {
 244                 source = gst_element_factory_make ("cdiocddasrc", "cda-source");
 245                 if (source)
 246                 {
 247                         g_object_set (G_OBJECT (source), "device", "/dev/cdroms/cdrom0", NULL);
 248                         int track = atoi(filename+18);
 249                         eDebug("play audio CD track #%i",track);
 250                         if (track > 0)
 251                                 g_object_set (G_OBJECT (source), "track", track, NULL);
 252                 }
 253                 else
 254                         sourceinfo.containertype = ctNone;
 255         }
 256         if ( !sourceinfo.is_streaming && sourceinfo.containertype != ctCDA )
 257         {
 258                 source = gst_element_factory_make ("filesrc", "file-source");
 259                 if (source)
 260                         g_object_set (G_OBJECT (source), "location", filename, NULL);
 261                 else
 262                         m_error_message = "GStreamer can't open filesrc " + (std::string)filename + "!\n";
 263         }
 264         if ( sourceinfo.is_video )
 265         {
 266                         /* filesrc -> mpegdemux -> | queue_audio -> dvbaudiosink
 267                                                    | queue_video -> dvbvideosink */
 268
 269                 audio = gst_element_factory_make("dvbaudiosink", "audiosink");
 270                 if (!audio)
 271                         m_error_message += "failed to create Gstreamer element dvbaudiosink\n";
 272
 273                 video = gst_element_factory_make("dvbvideosink", "videosink");
 274                 if (!video)
 275                         m_error_message += "failed to create Gstreamer element dvbvideosink\n";
 276
 277                 queue_audio = gst_element_factory_make("queue", "queue_audio");
 278                 queue_video = gst_element_factory_make("queue", "queue_video");
 279
 280                 std::string demux_type;
 281                 switch (sourceinfo.containertype)
 282                 {
 283                         case ctMPEGTS:
 284                                 demux_type = "flutsdemux";
 285                                 break;
 286                         case ctMPEGPS:
 287                         case ctVCD:
 288                                 demux_type = "flupsdemux";
 289                                 break;
 290                         case ctMKV:
 291                                 demux_type = "matroskademux";
 292                                 break;
 293                         case ctAVI:
 294                                 demux_type = "avidemux";
 295                                 break;
 296                         case ctMP4:
 297                                 demux_type = "qtdemux";
 298                                 break;
 299                         default:
 300                                 break;
 301                 }
 302                 videodemux = gst_element_factory_make(demux_type.c_str(), "videodemux");
 303                 if (!videodemux)
 304                         m_error_message = "GStreamer plugin " + demux_type + " not available!\n";
 305
 306                 switch_audio = gst_element_factory_make ("input-selector", "switch_audio");
 307                 if (!switch_audio)
 308                         m_error_message = "GStreamer plugin input-selector not available!\n";
 309
 310                 if (audio && queue_audio && video && queue_video && videodemux && switch_audio)
 311                 {
 312                         g_object_set (G_OBJECT (queue_audio), "max-size-bytes", 256*1024, NULL);
 313                         g_object_set (G_OBJECT (queue_audio), "max-size-buffers", 0, NULL);
 314                         g_object_set (G_OBJECT (queue_audio), "max-size-time", (guint64)0, NULL);
 315                         g_object_set (G_OBJECT (queue_video), "max-size-buffers", 0, NULL);
 316                         g_object_set (G_OBJECT (queue_video), "max-size-bytes", 2*1024*1024, NULL);
 317                         g_object_set (G_OBJECT (queue_video), "max-size-time", (guint64)0, NULL);
 318                         g_object_set (G_OBJECT (switch_audio), "select-all", TRUE, NULL);
 319                         all_ok = 1;
 320                 }
 321         } else /* is audio */
 322         {
 323
 324                         /* filesrc -> decodebin -> audioconvert -> capsfilter -> alsasink */
 325                 decoder = gst_element_factory_make ("decodebin", "decoder");
 326                 if (!decoder)
 327                         m_error_message += "failed to create Gstreamer element decodebin\n";
 328
 329                 conv = gst_element_factory_make ("audioconvert", "converter");
 330                 if (!conv)
 331                         m_error_message += "failed to create Gstreamer element audioconvert\n";
 332
 333                 flt = gst_element_factory_make ("capsfilter", "flt");
 334                 if (!flt)
 335                         m_error_message += "failed to create Gstreamer element capsfilter\n";
 336
 337                         /* for some reasons, we need to set the sample format to depth/width=16, because auto negotiation doesn't work. */
 338                         /* endianness, however, is not required to be set anymore. */
 339                 if (flt)
 340                 {
 341                         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);
 342                         g_object_set (G_OBJECT (flt), "caps", caps, NULL);
 343                         gst_caps_unref(caps);
 344                 }
 345
 346                 sink = gst_element_factory_make ("alsasink", "alsa-output");
 347                 if (!sink)
 348                         m_error_message += "failed to create Gstreamer element alsasink\n";
 349
 350                 if (source && decoder && conv && sink)
 351                         all_ok = 1;
 352         }
 353         if (m_gst_pipeline && all_ok)
 354         {
 355                 gst_bus_set_sync_handler(gst_pipeline_get_bus (GST_PIPELINE (m_gst_pipeline)), gstBusSyncHandler, this);
 356
 357                 if ( sourceinfo.containertype == ctCDA )
 358                 {
 359                         queue_audio = gst_element_factory_make("queue", "queue_audio");
 360                         g_object_set (G_OBJECT (sink), "preroll-queue-len", 80, NULL);
 361                         gst_bin_add_many (GST_BIN (m_gst_pipeline), source, queue_audio, conv, sink, NULL);
 362                         gst_element_link_many(source, queue_audio, conv, sink, NULL);
 363                 }
 364                 else if ( sourceinfo.is_video )
 365                 {
 366                         char srt_filename[strlen(filename)+1];
 367                         strncpy(srt_filename,filename,strlen(filename)-3);
 368                         srt_filename[strlen(filename)-3]='\0';
 369                         strcat(srt_filename, "srt");
 370                         struct stat buffer;
 371                         if (stat(srt_filename, &buffer) == 0)
 372                         {
 373                                 eDebug("subtitle file found: %s",srt_filename);
 374                                 GstElement *subsource = gst_element_factory_make ("filesrc", "srt_source");
 375                                 g_object_set (G_OBJECT (subsource), "location", srt_filename, NULL);
 376                                 gst_bin_add(GST_BIN (m_gst_pipeline), subsource);
 377                                 GstPad *switchpad = gstCreateSubtitleSink(this, stSRT);
 378                                 gst_pad_link(gst_element_get_pad (subsource, "src"), switchpad);
 379                                 subtitleStream subs;
 380                                 subs.pad = switchpad;
 381                                 subs.type = stSRT;
 382                                 subs.language_code = std::string("und");
 383                                 m_subtitleStreams.push_back(subs);
 384                         }
 385                         gst_bin_add_many(GST_BIN(m_gst_pipeline), source, videodemux, audio, queue_audio, video, queue_video, switch_audio, NULL);
 386
 387                         if ( sourceinfo.containertype == ctVCD )
 388                         {
 389                                 GstElement *cdxaparse = gst_element_factory_make("cdxaparse", "cdxaparse");
 390                                 gst_bin_add(GST_BIN(m_gst_pipeline), cdxaparse);
 391                                 gst_element_link(source, cdxaparse);
 392                                 gst_element_link(cdxaparse, videodemux);
 393                         }
 394                         else
 395                                 gst_element_link(source, videodemux);
 396
 397                         gst_element_link(switch_audio, queue_audio);
 398                         gst_element_link(queue_audio, audio);
 399                         gst_element_link(queue_video, video);
 400                         g_signal_connect(videodemux, "pad-added", G_CALLBACK (gstCBpadAdded), this);
 401
 402                 } else /* is audio*/
 403                 {
 404                         queue_audio = gst_element_factory_make("queue", "queue_audio");
 405
 406                         g_signal_connect (decoder, "new-decoded-pad", G_CALLBACK(gstCBnewPad), this);
 407                         g_signal_connect (decoder, "unknown-type", G_CALLBACK(gstCBunknownType), this);
 408
 409                         g_object_set (G_OBJECT (sink), "preroll-queue-len", 80, NULL);
 410
 411                                 /* gst_bin will take the 'floating references' */
 412                         gst_bin_add_many (GST_BIN (m_gst_pipeline),
 413                                                 source, queue_audio, decoder, NULL);
 414
 415                                 /* in decodebin's case we can just connect the source with the decodebin, and decodebin will take care about id3demux (or whatever is required) */
 416                         gst_element_link_many(source, queue_audio, decoder, NULL);
 417
 418                                 /* create audio bin with the audioconverter, the capsfilter and the audiosink */
 419                         audio = gst_bin_new ("audiobin");
 420
 421                         GstPad *audiopad = gst_element_get_static_pad (conv, "sink");
 422                         gst_bin_add_many(GST_BIN(audio), conv, flt, sink, NULL);
 423                         gst_element_link_many(conv, flt, sink, NULL);
 424                         gst_element_add_pad(audio, gst_ghost_pad_new ("sink", audiopad));
 425                         gst_object_unref(audiopad);
 426                         gst_bin_add (GST_BIN(m_gst_pipeline), audio);
 427                 }
 428         } else
 429         {
 430                 m_event((iPlayableService*)this, evUser+12);
 431
 432                 if (m_gst_pipeline)
 433                         gst_object_unref(GST_OBJECT(m_gst_pipeline));
 434                 if (source)
 435                         gst_object_unref(GST_OBJECT(source));
 436                 if (decoder)
 437                         gst_object_unref(GST_OBJECT(decoder));
 438                 if (conv)
 439                         gst_object_unref(GST_OBJECT(conv));
 440                 if (sink)
 441                         gst_object_unref(GST_OBJECT(sink));
 442
 443                 if (audio)
 444                         gst_object_unref(GST_OBJECT(audio));
 445                 if (queue_audio)
 446                         gst_object_unref(GST_OBJECT(queue_audio));
 447                 if (video)
 448                         gst_object_unref(GST_OBJECT(video));
 449                 if (queue_video)
 450                         gst_object_unref(GST_OBJECT(queue_video));
 451                 if (videodemux)
 452                         gst_object_unref(GST_OBJECT(videodemux));
 453                 if (switch_audio)
 454                         gst_object_unref(GST_OBJECT(switch_audio));
 455
 456                 eDebug("sorry, can't play: %s",m_error_message.c_str());
 457                 m_gst_pipeline = 0;
 458         }
 459
 460         gst_element_set_state (m_gst_pipeline, GST_STATE_PLAYING);
 461 }
 462
 463 eServiceMP3::~eServiceMP3()
 464 {
 465         delete m_subtitle_widget;
 466         if (m_state == stRunning)
 467                 stop();
 468
 469         if (m_stream_tags)
 470                 gst_tag_list_free(m_stream_tags);
 471
 472         if (m_gst_pipeline)
 473         {
 474                 gst_object_unref (GST_OBJECT (m_gst_pipeline));
 475                 eDebug("SERVICEMP3 destruct!");
 476         }
 477 }
 478
 479 DEFINE_REF(eServiceMP3);
 480
 481 RESULT eServiceMP3::connectEvent(const Slot2<void,iPlayableService*,int> &event, ePtr<eConnection> &connection)
 482 {
 483         connection = new eConnection((iPlayableService*)this, m_event.connect(event));
 484         return 0;
 485 }
 486
 487 RESULT eServiceMP3::start()
 488 {
 489         assert(m_state == stIdle);
 490
 491         m_state = stRunning;
 492         if (m_gst_pipeline)
 493         {
 494                 eDebug("starting pipeline");
 495                 gst_element_set_state (m_gst_pipeline, GST_STATE_PLAYING);
 496         }
 497         m_event(this, evStart);
 498         return 0;
 499 }
 500
 501 RESULT eServiceMP3::stop()
 502 {
 503         assert(m_state != stIdle);
 504         if (m_state == stStopped)
 505                 return -1;
 506         eDebug("MP3: %s stop\n", m_filename.c_str());
 507         gst_element_set_state(m_gst_pipeline, GST_STATE_NULL);
 508         m_state = stStopped;
 509         return 0;
 510 }
 511
 512 RESULT eServiceMP3::setTarget(int target)
 513 {
 514         return -1;
 515 }
 516
 517 RESULT eServiceMP3::pause(ePtr<iPauseableService> &ptr)
 518 {
 519         ptr=this;
 520         return 0;
 521 }
 522
 523 RESULT eServiceMP3::setSlowMotion(int ratio)
 524 {
 525         /* we can't do slomo yet */
 526         return -1;
 527 }
 528
 529 RESULT eServiceMP3::setFastForward(int ratio)
 530 {
 531         m_currentTrickRatio = ratio;
 532         if (ratio)
 533                 m_seekTimeout->start(1000, 0);
 534         else
 535                 m_seekTimeout->stop();
 536         return 0;
 537 }
 538
 539 void eServiceMP3::seekTimeoutCB()
 540 {
 541         pts_t ppos, len;
 542         getPlayPosition(ppos);
 543         getLength(len);
 544         ppos += 90000*m_currentTrickRatio;
 545
 546         if (ppos < 0)
 547         {
 548                 ppos = 0;
 549                 m_seekTimeout->stop();
 550         }
 551         if (ppos > len)
 552         {
 553                 ppos = 0;
 554                 stop();
 555                 m_seekTimeout->stop();
 556                 return;
 557         }
 558         seekTo(ppos);
 559 }
 560
 561                 // iPausableService
 562 RESULT eServiceMP3::pause()
 563 {
 564         if (!m_gst_pipeline)
 565                 return -1;
 566         GstStateChangeReturn res = gst_element_set_state(m_gst_pipeline, GST_STATE_PAUSED);
 567         if (res == GST_STATE_CHANGE_ASYNC)
 568         {
 569                 pts_t ppos;
 570                 getPlayPosition(ppos);
 571                 seekTo(ppos);
 572         }
 573         return 0;
 574 }
 575
 576 RESULT eServiceMP3::unpause()
 577 {
 578         if (!m_gst_pipeline)
 579                 return -1;
 580
 581         GstStateChangeReturn res;
 582         res = gst_element_set_state(m_gst_pipeline, GST_STATE_PLAYING);
 583         return 0;
 584 }
 585
 586         /* iSeekableService */
 587 RESULT eServiceMP3::seek(ePtr<iSeekableService> &ptr)
 588 {
 589         ptr = this;
 590         return 0;
 591 }
 592
 593 RESULT eServiceMP3::getLength(pts_t &pts)
 594 {
 595         if (!m_gst_pipeline)
 596                 return -1;
 597         if (m_state != stRunning)
 598                 return -1;
 599
 600         GstFormat fmt = GST_FORMAT_TIME;
 601         gint64 len;
 602
 603         if (!gst_element_query_duration(m_gst_pipeline, &fmt, &len))
 604                 return -1;
 605
 606                 /* len is in nanoseconds. we have 90 000 pts per second. */
 607
 608         pts = len / 11111;
 609         return 0;
 610 }
 611
 612 RESULT eServiceMP3::seekTo(pts_t to)
 613 {
 614         if (!m_gst_pipeline)
 615                 return -1;
 616
 617                 /* convert pts to nanoseconds */
 618         gint64 time_nanoseconds = to * 11111LL;
 619         if (!gst_element_seek (m_gst_pipeline, 1.0, GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH,
 620                 GST_SEEK_TYPE_SET, time_nanoseconds,
 621                 GST_SEEK_TYPE_NONE, GST_CLOCK_TIME_NONE))
 622         {
 623                 eDebug("SEEK failed");
 624                 return -1;
 625         }
 626         return 0;
 627 }
 628
 629 RESULT eServiceMP3::seekRelative(int direction, pts_t to)
 630 {
 631         if (!m_gst_pipeline)
 632                 return -1;
 633
 634         pts_t ppos;
 635         getPlayPosition(ppos);
 636         ppos += to * direction;
 637         if (ppos < 0)
 638                 ppos = 0;
 639         seekTo(ppos);
 640
 641         return 0;
 642 }
 643
 644 RESULT eServiceMP3::getPlayPosition(pts_t &pts)
 645 {
 646         if (!m_gst_pipeline)
 647                 return -1;
 648         if (m_state != stRunning)
 649                 return -1;
 650
 651         GstFormat fmt = GST_FORMAT_TIME;
 652         gint64 len;
 653
 654         if (!gst_element_query_position(m_gst_pipeline, &fmt, &len))
 655                 return -1;
 656
 657                 /* len is in nanoseconds. we have 90 000 pts per second. */
 658         pts = len / 11111;
 659         return 0;
 660 }
 661
 662 RESULT eServiceMP3::setTrickmode(int trick)
 663 {
 664                 /* trickmode is not yet supported by our dvbmediasinks. */
 665         return -1;
 666 }
 667
 668 RESULT eServiceMP3::isCurrentlySeekable()
 669 {
 670         return 1;
 671 }
 672
 673 RESULT eServiceMP3::info(ePtr<iServiceInformation>&i)
 674 {
 675         i = this;
 676         return 0;
 677 }
 678
 679 RESULT eServiceMP3::getName(std::string &name)
 680 {
 681         name = m_filename;
 682         size_t n = name.rfind('/');
 683         if (n != std::string::npos)
 684                 name = name.substr(n + 1);
 685         return 0;
 686 }
 687
 688 int eServiceMP3::getInfo(int w)
 689 {
 690         gchar *tag = 0;
 691
 692         switch (w)
 693         {
 694         case sTitle:
 695         case sArtist:
 696         case sAlbum:
 697         case sComment:
 698         case sTracknumber:
 699         case sGenre:
 700         case sVideoType:
 701         case sTimeCreate:
 702         case sUser+12:
 703                 return resIsString;
 704         case sCurrentTitle:
 705                 tag = GST_TAG_TRACK_NUMBER;
 706                 break;
 707         case sTotalTitles:
 708                 tag = GST_TAG_TRACK_COUNT;
 709                 break;
 710         default:
 711                 return resNA;
 712         }
 713
 714         if (!m_stream_tags || !tag)
 715                 return 0;
 716
 717         guint value;
 718         if (gst_tag_list_get_uint(m_stream_tags, tag, &value))
 719                 return (int) value;
 720
 721         return 0;
 722
 723 }
 724
 725 std::string eServiceMP3::getInfoString(int w)
 726 {
 727         if ( !m_stream_tags )
 728                 return "";
 729         gchar *tag = 0;
 730         switch (w)
 731         {
 732         case sTitle:
 733                 tag = GST_TAG_TITLE;
 734                 break;
 735         case sArtist:
 736                 tag = GST_TAG_ARTIST;
 737                 break;
 738         case sAlbum:
 739                 tag = GST_TAG_ALBUM;
 740                 break;
 741         case sComment:
 742                 tag = GST_TAG_COMMENT;
 743                 break;
 744         case sTracknumber:
 745                 tag = GST_TAG_TRACK_NUMBER;
 746                 break;
 747         case sGenre:
 748                 tag = GST_TAG_GENRE;
 749                 break;
 750         case sVideoType:
 751                 tag = GST_TAG_VIDEO_CODEC;
 752                 break;
 753         case sTimeCreate:
 754                 GDate *date;
 755                 if (gst_tag_list_get_date(m_stream_tags, GST_TAG_DATE, &date))
 756                 {
 757                         gchar res[5];
 758                         g_date_strftime (res, sizeof(res), "%Y", date);
 759                         return (std::string)res;
 760                 }
 761                 break;
 762         case sUser+12:
 763                 return m_error_message;
 764         default:
 765                 return "";
 766         }
 767         if ( !tag )
 768                 return "";
 769         gchar *value;
 770         if (gst_tag_list_get_string(m_stream_tags, tag, &value))
 771         {
 772                 std::string res = value;
 773                 g_free(value);
 774                 return res;
 775         }
 776         return "";
 777 }
 778
 779 RESULT eServiceMP3::audioChannel(ePtr<iAudioChannelSelection> &ptr)
 780 {
 781         ptr = this;
 782         return 0;
 783 }
 784
 785 RESULT eServiceMP3::audioTracks(ePtr<iAudioTrackSelection> &ptr)
 786 {
 787         ptr = this;
 788         return 0;
 789 }
 790
 791 RESULT eServiceMP3::subtitle(ePtr<iSubtitleOutput> &ptr)
 792 {
 793         ptr = this;
 794         return 0;
 795 }
 796
 797 int eServiceMP3::getNumberOfTracks()
 798 {
 799         return m_audioStreams.size();
 800 }
 801
 802 int eServiceMP3::getCurrentTrack()
 803 {
 804         return m_currentAudioStream;
 805 }
 806
 807 RESULT eServiceMP3::selectTrack(unsigned int i)
 808 {
 809         int ret = selectAudioStream(i);
 810         /* flush */
 811         pts_t ppos;
 812         getPlayPosition(ppos);
 813         seekTo(ppos);
 814
 815         return ret;
 816 }
 817
 818 int eServiceMP3::selectAudioStream(int i)
 819 {
 820         gint nb_sources;
 821         GstPad *active_pad;
 822         GstElement *switch_audio = gst_bin_get_by_name(GST_BIN(m_gst_pipeline),"switch_audio");
 823         if ( !switch_audio )
 824         {
 825                 eDebug("can't switch audio tracks! gst-plugin-selector needed");
 826                 return -1;
 827         }
 828         g_object_get (G_OBJECT (switch_audio), "n-pads", &nb_sources, NULL);
 829         if ( (unsigned int)i >= m_audioStreams.size() || i >= nb_sources || (unsigned int)m_currentAudioStream >= m_audioStreams.size() )
 830                 return -2;
 831         char sinkpad[8];
 832         sprintf(sinkpad, "sink%d", i);
 833         g_object_set (G_OBJECT (switch_audio), "active-pad", gst_element_get_pad (switch_audio, sinkpad), NULL);
 834         g_object_get (G_OBJECT (switch_audio), "active-pad", &active_pad, NULL);
 835         gchar *name;
 836         name = gst_pad_get_name (active_pad);
 837         eDebug ("switched audio to (%s)", name);
 838         g_free(name);
 839         m_currentAudioStream = i;
 840         return 0;
 841 }
 842
 843 int eServiceMP3::getCurrentChannel()
 844 {
 845         return STEREO;
 846 }
 847
 848 RESULT eServiceMP3::selectChannel(int i)
 849 {
 850         eDebug("eServiceMP3::selectChannel(%i)",i);
 851         return 0;
 852 }
 853
 854 RESULT eServiceMP3::getTrackInfo(struct iAudioTrackInfo &info, unsigned int i)
 855 {
 856 //      eDebug("eServiceMP3::getTrackInfo(&info, %i)",i);
 857         if (i >= m_audioStreams.size())
 858                 return -2;
 859         if (m_audioStreams[i].type == atMPEG)
 860                 info.m_description = "MPEG";
 861         else if (m_audioStreams[i].type == atMP3)
 862                 info.m_description = "MP3";
 863         else if (m_audioStreams[i].type == atAC3)
 864                 info.m_description = "AC3";
 865         else if (m_audioStreams[i].type == atAAC)
 866                 info.m_description = "AAC";
 867         else if (m_audioStreams[i].type == atDTS)
 868                 info.m_description = "DTS";
 869         else if (m_audioStreams[i].type == atPCM)
 870                 info.m_description = "PCM";
 871         else if (m_audioStreams[i].type == atOGG)
 872                 info.m_description = "OGG";
 873         else
 874                 info.m_description = "???";
 875         if (info.m_language.empty())
 876                 info.m_language = m_audioStreams[i].language_code;
 877         return 0;
 878 }
 879
 880 void eServiceMP3::gstBusCall(GstBus *bus, GstMessage *msg)
 881 {
 882         if (!msg)
 883                 return;
 884         gchar *sourceName;
 885         GstObject *source;
 886
 887         source = GST_MESSAGE_SRC(msg);
 888         sourceName = gst_object_get_name(source);
 889 #if 0
 890         if (gst_message_get_structure(msg))
 891         {
 892                 gchar *string = gst_structure_to_string(gst_message_get_structure(msg));
 893                 eDebug("gst_message from %s: %s", sourceName, string);
 894                 g_free(string);
 895         }
 896         else
 897                 eDebug("gst_message from %s: %s (without structure)", sourceName, GST_MESSAGE_TYPE_NAME(msg));
 898 #endif
 899         switch (GST_MESSAGE_TYPE (msg))
 900         {
 901         case GST_MESSAGE_EOS:
 902                 m_event((iPlayableService*)this, evEOF);
 903                 break;
 904         case GST_MESSAGE_ERROR:
 905         {
 906                 gchar *debug;
 907                 GError *err;
 908
 909                 gst_message_parse_error (msg, &err, &debug);
 910                 g_free (debug);
 911                 eWarning("Gstreamer error: %s (%i)", err->message, err->code );
 912                 if ( err->domain == GST_STREAM_ERROR && err->code == GST_STREAM_ERROR_DECODE )
 913                 {
 914                         if ( g_strrstr(sourceName, "videosink") )
 915                                 m_event((iPlayableService*)this, evUser+11);
 916                 }
 917                 g_error_free(err);
 918                         /* TODO: signal error condition to user */
 919                 break;
 920         }
 921         case GST_MESSAGE_TAG:
 922         {
 923                 GstTagList *tags, *result;
 924                 gst_message_parse_tag(msg, &tags);
 925
 926                 result = gst_tag_list_merge(m_stream_tags, tags, GST_TAG_MERGE_PREPEND);
 927                 if (result)
 928                 {
 929                         if (m_stream_tags)
 930                                 gst_tag_list_free(m_stream_tags);
 931                         m_stream_tags = result;
 932                 }
 933
 934                 gchar *g_audiocodec;
 935                 if ( gst_tag_list_get_string(tags, GST_TAG_AUDIO_CODEC, &g_audiocodec) && m_audioStreams.size() == 0 )
 936                 {
 937                         GstPad* pad = gst_element_get_pad (GST_ELEMENT(source), "src");
 938                         GstCaps* caps = gst_pad_get_caps(pad);
 939                         GstStructure* str = gst_caps_get_structure(caps, 0);
 940                         if ( !str )
 941                                 break;
 942                         audioStream audio;
 943                         audio.type = gstCheckAudioPad(str);
 944                         m_audioStreams.push_back(audio);
 945                 }
 946
 947                 gst_tag_list_free(tags);
 948                 m_event((iPlayableService*)this, evUpdatedInfo);
 949                 break;
 950         }
 951         case GST_MESSAGE_ASYNC_DONE:
 952         {
 953                 GstTagList *tags;
 954                 for (std::vector<audioStream>::iterator IterAudioStream(m_audioStreams.begin()); IterAudioStream != m_audioStreams.end(); ++IterAudioStream)
 955                 {
 956                         if ( IterAudioStream->pad )
 957                         {
 958                                 g_object_get(IterAudioStream->pad, "tags", &tags, NULL);
 959                                 gchar *g_language;
 960                                 if ( gst_is_tag_list(tags) && gst_tag_list_get_string(tags, GST_TAG_LANGUAGE_CODE, &g_language) )
 961                                 {
 962                                         eDebug("found audio language %s",g_language);
 963                                         IterAudioStream->language_code = std::string(g_language);
 964                                         g_free (g_language);
 965                                 }
 966                         }
 967                 }
 968                 for (std::vector<subtitleStream>::iterator IterSubtitleStream(m_subtitleStreams.begin()); IterSubtitleStream != m_subtitleStreams.end(); ++IterSubtitleStream)
 969                 {
 970                         if ( IterSubtitleStream->pad )
 971                         {
 972                                 g_object_get(IterSubtitleStream->pad, "tags", &tags, NULL);
 973                                 gchar *g_language;
 974                                 if ( gst_is_tag_list(tags) && gst_tag_list_get_string(tags, GST_TAG_LANGUAGE_CODE, &g_language) )
 975                                 {
 976                                         eDebug("found subtitle language %s",g_language);
 977                                         IterSubtitleStream->language_code = std::string(g_language);
 978                                         g_free (g_language);
 979                                 }
 980                         }
 981                 }
 982         }
 983         case GST_MESSAGE_ELEMENT:
 984         {
 985                 if ( gst_is_missing_plugin_message(msg) )
 986                 {
 987                         gchar *description = gst_missing_plugin_message_get_description(msg);
 988                         if ( description )
 989                         {
 990                                 m_error_message = "GStreamer plugin " + (std::string)description + " not available!\n";
 991                                 g_free(description);
 992                                 m_event((iPlayableService*)this, evUser+12);
 993                         }
 994                 }
 995         }
 996         default:
 997                 break;
 998         }
 999         g_free (sourceName);
1000 }
1001
1002 GstBusSyncReply eServiceMP3::gstBusSyncHandler(GstBus *bus, GstMessage *message, gpointer user_data)
1003 {
1004         eServiceMP3 *_this = (eServiceMP3*)user_data;
1005         _this->m_pump.send(1);
1006                 /* wake */
1007         return GST_BUS_PASS;
1008 }
1009
1010 audiotype_t eServiceMP3::gstCheckAudioPad(GstStructure* structure)
1011 {
1012         const gchar* type;
1013         type = gst_structure_get_name(structure);
1014
1015         if (!strcmp(type, "audio/mpeg")) {
1016                         gint mpegversion, layer = 0;
1017                         gst_structure_get_int (structure, "mpegversion", &mpegversion);
1018                         gst_structure_get_int (structure, "layer", &layer);
1019                         eDebug("mime audio/mpeg version %d layer %d", mpegversion, layer);
1020                         switch (mpegversion) {
1021                                 case 1:
1022                                 {
1023                                         if ( layer == 3 )
1024                                                 return atMP3;
1025                                         else
1026                                                 return atMPEG;
1027                                 }
1028                                 case 2:
1029                                         return atMPEG;
1030                                 case 4:
1031                                         return atAAC;
1032                                 default:
1033                                         return atUnknown;
1034                         }
1035                 }
1036         else
1037         {
1038                 eDebug("mime %s", type);
1039                 if (!strcmp(type, "audio/x-ac3") || !strcmp(type, "audio/ac3"))
1040                         return atAC3;
1041                 else if (!strcmp(type, "audio/x-dts") || !strcmp(type, "audio/dts"))
1042                         return atDTS;
1043                 else if (!strcmp(type, "audio/x-raw-int"))
1044                         return atPCM;
1045         }
1046         return atUnknown;
1047 }
1048
1049 void eServiceMP3::gstCBpadAdded(GstElement *decodebin, GstPad *pad, gpointer user_data)
1050 {
1051         const gchar* type;
1052         GstCaps* caps;
1053         GstStructure* str;
1054         caps = gst_pad_get_caps(pad);
1055         str = gst_caps_get_structure(caps, 0);
1056         type = gst_structure_get_name(str);
1057
1058         eDebug("A new pad %s:%s was created", GST_OBJECT_NAME (decodebin), GST_OBJECT_NAME (pad));
1059
1060         eServiceMP3 *_this = (eServiceMP3*)user_data;
1061         GstBin *pipeline = GST_BIN(_this->m_gst_pipeline);
1062         if (g_strrstr(type,"audio"))
1063         {
1064                 audioStream audio;
1065                 audio.type = _this->gstCheckAudioPad(str);
1066                 GstElement *switch_audio = gst_bin_get_by_name(pipeline , "switch_audio");
1067                 if ( switch_audio )
1068                 {
1069                         GstPad *sinkpad = gst_element_get_request_pad (switch_audio, "sink%d");
1070                         gst_pad_link(pad, sinkpad);
1071                         audio.pad = sinkpad;
1072                         _this->m_audioStreams.push_back(audio);
1073
1074                         if ( _this->m_audioStreams.size() == 1 )
1075                         {
1076                                 _this->selectAudioStream(0);
1077                                 gst_element_set_state (_this->m_gst_pipeline, GST_STATE_PLAYING);
1078                         }
1079                         else
1080                                 g_object_set (G_OBJECT (switch_audio), "select-all", FALSE, NULL);
1081                 }
1082                 else
1083                 {
1084                         gst_pad_link(pad, gst_element_get_static_pad(gst_bin_get_by_name(pipeline,"queue_audio"), "sink"));
1085                         _this->m_audioStreams.push_back(audio);
1086                 }
1087         }
1088         if (g_strrstr(type,"video"))
1089         {
1090                 gst_pad_link(pad, gst_element_get_static_pad(gst_bin_get_by_name(pipeline,"queue_video"), "sink"));
1091         }
1092         if (g_strrstr(type,"application/x-ssa") || g_strrstr(type,"application/x-ass"))
1093         {
1094                 GstPad *switchpad = _this->gstCreateSubtitleSink(_this, stSSA);
1095                 gst_pad_link(pad, switchpad);
1096                 subtitleStream subs;
1097                 subs.pad = switchpad;
1098                 subs.type = stSSA;
1099                 _this->m_subtitleStreams.push_back(subs);
1100         }
1101         if (g_strrstr(type,"text/plain"))
1102         {
1103                 GstPad *switchpad = _this->gstCreateSubtitleSink(_this, stPlainText);
1104                 gst_pad_link(pad, switchpad);
1105                 subtitleStream subs;
1106                 subs.pad = switchpad;
1107                 subs.type = stPlainText;
1108                 _this->m_subtitleStreams.push_back(subs);
1109         }
1110 }
1111
1112 GstPad* eServiceMP3::gstCreateSubtitleSink(eServiceMP3* _this, subtype_t type)
1113 {
1114         GstBin *pipeline = GST_BIN(_this->m_gst_pipeline);
1115         GstElement *switch_subparse = gst_bin_get_by_name(pipeline,"switch_subparse");
1116         if ( !switch_subparse )
1117         {
1118                 switch_subparse = gst_element_factory_make ("input-selector", "switch_subparse");
1119                 GstElement *sink = gst_element_factory_make("fakesink", "sink_subtitles");
1120                 gst_bin_add_many(pipeline, switch_subparse, sink, NULL);
1121                 gst_element_link(switch_subparse, sink);
1122                 g_object_set (G_OBJECT(sink), "signal-handoffs", TRUE, NULL);
1123                 g_object_set (G_OBJECT(sink), "sync", TRUE, NULL);
1124                 g_object_set (G_OBJECT(sink), "async", FALSE, NULL);
1125                 g_signal_connect(sink, "handoff", G_CALLBACK(_this->gstCBsubtitleAvail), _this);
1126
1127                 // order is essential since requested sink pad names can't be explicitely chosen
1128                 GstElement *switch_substream_plain = gst_element_factory_make ("input-selector", "switch_substream_plain");
1129                 gst_bin_add(pipeline, switch_substream_plain);
1130                 GstPad *sinkpad_plain = gst_element_get_request_pad (switch_subparse, "sink%d");
1131                 gst_pad_link(gst_element_get_pad (switch_substream_plain, "src"), sinkpad_plain);
1132
1133                 GstElement *switch_substream_ssa = gst_element_factory_make ("input-selector", "switch_substream_ssa");
1134                 GstElement *ssaparse = gst_element_factory_make("ssaparse", "ssaparse");
1135                 gst_bin_add_many(pipeline, switch_substream_ssa, ssaparse, NULL);
1136                 GstPad *sinkpad_ssa = gst_element_get_request_pad (switch_subparse, "sink%d");
1137                 gst_element_link(switch_substream_ssa, ssaparse);
1138                 gst_pad_link(gst_element_get_pad (ssaparse, "src"), sinkpad_ssa);
1139
1140                 GstElement *switch_substream_srt = gst_element_factory_make ("input-selector", "switch_substream_srt");
1141                 GstElement *srtparse = gst_element_factory_make("subparse", "srtparse");
1142                 gst_bin_add_many(pipeline, switch_substream_srt, srtparse, NULL);
1143                 GstPad *sinkpad_srt = gst_element_get_request_pad (switch_subparse, "sink%d");
1144                 gst_element_link(switch_substream_srt, srtparse);
1145                 gst_pad_link(gst_element_get_pad (srtparse, "src"), sinkpad_srt);
1146                 g_object_set (G_OBJECT(srtparse), "subtitle-encoding", "ISO-8859-15", NULL);
1147         }
1148
1149         switch (type)
1150         {
1151                 case stSSA:
1152                         return gst_element_get_request_pad (gst_bin_get_by_name(pipeline,"switch_substream_ssa"), "sink%d");
1153                 case stSRT:
1154                         return gst_element_get_request_pad (gst_bin_get_by_name(pipeline,"switch_substream_srt"), "sink%d");
1155                 case stPlainText:
1156                 default:
1157                         break;
1158         }
1159         return gst_element_get_request_pad (gst_bin_get_by_name(pipeline,"switch_substream_plain"), "sink%d");
1160 }
1161
1162 void eServiceMP3::gstCBfilterPadAdded(GstElement *filter, GstPad *pad, gpointer user_data)
1163 {
1164         eServiceMP3 *_this = (eServiceMP3*)user_data;
1165         GstElement *decoder = gst_bin_get_by_name(GST_BIN(_this->m_gst_pipeline),"decoder");
1166         gst_pad_link(pad, gst_element_get_static_pad (decoder, "sink"));
1167 }
1168
1169 void eServiceMP3::gstCBnewPad(GstElement *decodebin, GstPad *pad, gboolean last, gpointer user_data)
1170 {
1171         eServiceMP3 *_this = (eServiceMP3*)user_data;
1172         GstCaps *caps;
1173         GstStructure *str;
1174         GstPad *audiopad;
1175
1176         /* only link once */
1177         GstElement *audiobin = gst_bin_get_by_name(GST_BIN(_this->m_gst_pipeline),"audiobin");
1178         audiopad = gst_element_get_static_pad (audiobin, "sink");
1179         if ( !audiopad || GST_PAD_IS_LINKED (audiopad)) {
1180                 eDebug("audio already linked!");
1181                 g_object_unref (audiopad);
1182                 return;
1183         }
1184
1185         /* check media type */
1186         caps = gst_pad_get_caps (pad);
1187         str = gst_caps_get_structure (caps, 0);
1188         eDebug("gst new pad! %s", gst_structure_get_name (str));
1189
1190         if (!g_strrstr (gst_structure_get_name (str), "audio")) {
1191                 gst_caps_unref (caps);
1192                 gst_object_unref (audiopad);
1193                 return;
1194         }
1195
1196         gst_caps_unref (caps);
1197         gst_pad_link (pad, audiopad);
1198 }
1199
1200 void eServiceMP3::gstCBunknownType(GstElement *decodebin, GstPad *pad, GstCaps *caps, gpointer user_data)
1201 {
1202         GstStructure *str;
1203
1204         /* check media type */
1205         caps = gst_pad_get_caps (pad);
1206         str = gst_caps_get_structure (caps, 0);
1207         eDebug("unknown type: %s - this can't be decoded.", gst_structure_get_name (str));
1208         gst_caps_unref (caps);
1209 }
1210
1211 void eServiceMP3::gstPoll(const int&)
1212 {
1213                 /* ok, we have a serious problem here. gstBusSyncHandler sends
1214                    us the wakup signal, but likely before it was posted.
1215                    the usleep, an EVIL HACK (DON'T DO THAT!!!) works around this.
1216
1217                    I need to understand the API a bit more to make this work
1218                    proplerly. */
1219         usleep(1);
1220
1221         GstBus *bus = gst_pipeline_get_bus (GST_PIPELINE (m_gst_pipeline));
1222         GstMessage *message;
1223         while ((message = gst_bus_pop (bus)))
1224         {
1225                 gstBusCall(bus, message);
1226                 gst_message_unref (message);
1227         }
1228 }
1229
1230 eAutoInitPtr<eServiceFactoryMP3> init_eServiceFactoryMP3(eAutoInitNumbers::service+1, "eServiceFactoryMP3");
1231
1232 void eServiceMP3::gstCBsubtitleAvail(GstElement *element, GstBuffer *buffer, GstPad *pad, gpointer user_data)
1233 {
1234         gint64 duration_ns = GST_BUFFER_DURATION(buffer);
1235         const unsigned char *text = (unsigned char *)GST_BUFFER_DATA(buffer);
1236         eDebug("gstCBsubtitleAvail: %s",text);
1237         eServiceMP3 *_this = (eServiceMP3*)user_data;
1238         if ( _this->m_subtitle_widget )
1239         {
1240                 ePangoSubtitlePage page;
1241                 gRGB rgbcol(0xD0,0xD0,0xD0);
1242                 page.m_elements.push_back(ePangoSubtitlePageElement(rgbcol, (const char*)text));
1243                 page.m_timeout = duration_ns / 1000000;
1244                 (_this->m_subtitle_widget)->setPage(page);
1245         }
1246 }
1247
1248 RESULT eServiceMP3::enableSubtitles(eWidget *parent, ePyObject tuple)
1249 {
1250         ePyObject entry;
1251         int tuplesize = PyTuple_Size(tuple);
1252         int pid;
1253         int type;
1254         gint nb_sources;
1255         GstPad *active_pad;
1256         GstElement *switch_substream = NULL;
1257         GstElement *switch_subparse = gst_bin_get_by_name (GST_BIN(m_gst_pipeline), "switch_subparse");
1258
1259         if (!PyTuple_Check(tuple))
1260                 goto error_out;
1261         if (tuplesize < 1)
1262                 goto error_out;
1263         entry = PyTuple_GET_ITEM(tuple, 1);
1264         if (!PyInt_Check(entry))
1265                 goto error_out;
1266         pid = PyInt_AsLong(entry);
1267         entry = PyTuple_GET_ITEM(tuple, 2);
1268         if (!PyInt_Check(entry))
1269                 goto error_out;
1270         type = PyInt_AsLong(entry);
1271
1272         switch ((subtype_t)type)
1273         {
1274                 case stPlainText:
1275                         switch_substream = gst_bin_get_by_name(GST_BIN(m_gst_pipeline),"switch_substream_plain");
1276                         break;
1277                 case stSSA:
1278                         switch_substream = gst_bin_get_by_name(GST_BIN(m_gst_pipeline),"switch_substream_ssa");
1279                         break;
1280                 case stSRT:
1281                         switch_substream = gst_bin_get_by_name(GST_BIN(m_gst_pipeline),"switch_substream_srt");
1282                         break;
1283                 default:
1284                         goto error_out;
1285         }
1286
1287         m_subtitle_widget = new eSubtitleWidget(parent);
1288         m_subtitle_widget->resize(parent->size()); /* full size */
1289
1290         if ( !switch_substream )
1291         {
1292                 eDebug("can't switch subtitle tracks! gst-plugin-selector needed");
1293                 return -2;
1294         }
1295         g_object_get (G_OBJECT (switch_substream), "n-pads", &nb_sources, NULL);
1296         if ( (unsigned int)pid >= m_subtitleStreams.size() || pid >= nb_sources || (unsigned int)m_currentSubtitleStream >= m_subtitleStreams.size() )
1297                 return -2;
1298         g_object_get (G_OBJECT (switch_subparse), "n-pads", &nb_sources, NULL);
1299         if ( type < 0 || type >= nb_sources )
1300                 return -2;
1301
1302         char sinkpad[6];
1303         sprintf(sinkpad, "sink%d", type);
1304         g_object_set (G_OBJECT (switch_subparse), "active-pad", gst_element_get_pad (switch_subparse, sinkpad), NULL);
1305         sprintf(sinkpad, "sink%d", pid);
1306         g_object_set (G_OBJECT (switch_substream), "active-pad", gst_element_get_pad (switch_substream, sinkpad), NULL);
1307         m_currentSubtitleStream = pid;
1308
1309         return 0;
1310 error_out:
1311         eDebug("enableSubtitles needs a tuple as 2nd argument!\n"
1312                 "for gst subtitles (2, subtitle_stream_count, subtitle_type)");
1313         return -1;
1314 }
1315
1316 RESULT eServiceMP3::disableSubtitles(eWidget *parent)
1317 {
1318         eDebug("eServiceMP3::disableSubtitles");
1319         delete m_subtitle_widget;
1320         m_subtitle_widget = 0;
1321         return 0;
1322 }
1323
1324 PyObject *eServiceMP3::getCachedSubtitle()
1325 {
1326         eDebug("eServiceMP3::getCachedSubtitle");
1327         Py_RETURN_NONE;
1328 }
1329
1330 PyObject *eServiceMP3::getSubtitleList()
1331 {
1332         eDebug("eServiceMP3::getSubtitleList");
1333
1334         ePyObject l = PyList_New(0);
1335         int stream_count[sizeof(subtype_t)];
1336         for ( unsigned int i = 0; i < sizeof(subtype_t); i++ )
1337                 stream_count[i] = 0;
1338
1339         for (std::vector<subtitleStream>::iterator IterSubtitleStream(m_subtitleStreams.begin()); IterSubtitleStream != m_subtitleStreams.end(); ++IterSubtitleStream)
1340         {
1341                 subtype_t type = IterSubtitleStream->type;
1342                 ePyObject tuple = PyTuple_New(5);
1343                 PyTuple_SET_ITEM(tuple, 0, PyInt_FromLong(2));
1344                 PyTuple_SET_ITEM(tuple, 1, PyInt_FromLong(stream_count[type]));
1345                 PyTuple_SET_ITEM(tuple, 2, PyInt_FromLong(int(type)));
1346                 PyTuple_SET_ITEM(tuple, 3, PyInt_FromLong(0));
1347                 PyTuple_SET_ITEM(tuple, 4, PyString_FromString((IterSubtitleStream->language_code).c_str()));
1348                 PyList_Append(l, tuple);
1349                 Py_DECREF(tuple);
1350                 stream_count[type]++;
1351         }
1352         return l;
1353 }
1354
1355 #else
1356 #warning gstreamer not available, not building media player
1357 #endif