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                 /* for subtitles */
  16 #include <lib/gui/esubtitle.h>
  17
  18 // eServiceFactoryMP3
  19
  20 eServiceFactoryMP3::eServiceFactoryMP3()
  21 {
  22         ePtr<eServiceCenter> sc;
  23
  24         eServiceCenter::getPrivInstance(sc);
  25         if (sc)
  26         {
  27                 std::list<std::string> extensions;
  28                 extensions.push_back("mp3");
  29                 extensions.push_back("ogg");
  30                 extensions.push_back("mpg");
  31                 extensions.push_back("vob");
  32                 extensions.push_back("wav");
  33                 extensions.push_back("wave");
  34                 extensions.push_back("mkv");
  35                 extensions.push_back("avi");
  36                 sc->addServiceFactory(eServiceFactoryMP3::id, this, extensions);
  37         }
  38
  39         m_service_info = new eStaticServiceMP3Info();
  40 }
  41
  42 eServiceFactoryMP3::~eServiceFactoryMP3()
  43 {
  44         ePtr<eServiceCenter> sc;
  45
  46         eServiceCenter::getPrivInstance(sc);
  47         if (sc)
  48                 sc->removeServiceFactory(eServiceFactoryMP3::id);
  49 }
  50
  51 DEFINE_REF(eServiceFactoryMP3)
  52
  53         // iServiceHandler
  54 RESULT eServiceFactoryMP3::play(const eServiceReference &ref, ePtr<iPlayableService> &ptr)
  55 {
  56                 // check resources...
  57         ptr = new eServiceMP3(ref.path.c_str());
  58         return 0;
  59 }
  60
  61 RESULT eServiceFactoryMP3::record(const eServiceReference &ref, ePtr<iRecordableService> &ptr)
  62 {
  63         ptr=0;
  64         return -1;
  65 }
  66
  67 RESULT eServiceFactoryMP3::list(const eServiceReference &, ePtr<iListableService> &ptr)
  68 {
  69         ptr=0;
  70         return -1;
  71 }
  72
  73 RESULT eServiceFactoryMP3::info(const eServiceReference &ref, ePtr<iStaticServiceInformation> &ptr)
  74 {
  75         ptr = m_service_info;
  76         return 0;
  77 }
  78
  79 class eMP3ServiceOfflineOperations: public iServiceOfflineOperations
  80 {
  81         DECLARE_REF(eMP3ServiceOfflineOperations);
  82         eServiceReference m_ref;
  83 public:
  84         eMP3ServiceOfflineOperations(const eServiceReference &ref);
  85
  86         RESULT deleteFromDisk(int simulate);
  87         RESULT getListOfFilenames(std::list<std::string> &);
  88 };
  89
  90 DEFINE_REF(eMP3ServiceOfflineOperations);
  91
  92 eMP3ServiceOfflineOperations::eMP3ServiceOfflineOperations(const eServiceReference &ref): m_ref((const eServiceReference&)ref)
  93 {
  94 }
  95
  96 RESULT eMP3ServiceOfflineOperations::deleteFromDisk(int simulate)
  97 {
  98         if (simulate)
  99                 return 0;
 100         else
 101         {
 102                 std::list<std::string> res;
 103                 if (getListOfFilenames(res))
 104                         return -1;
 105
 106                 eBackgroundFileEraser *eraser = eBackgroundFileEraser::getInstance();
 107                 if (!eraser)
 108                         eDebug("FATAL !! can't get background file eraser");
 109
 110                 for (std::list<std::string>::iterator i(res.begin()); i != res.end(); ++i)
 111                 {
 112                         eDebug("Removing %s...", i->c_str());
 113                         if (eraser)
 114                                 eraser->erase(i->c_str());
 115                         else
 116                                 ::unlink(i->c_str());
 117                 }
 118
 119                 return 0;
 120         }
 121 }
 122
 123 RESULT eMP3ServiceOfflineOperations::getListOfFilenames(std::list<std::string> &res)
 124 {
 125         res.clear();
 126         res.push_back(m_ref.path);
 127         return 0;
 128 }
 129
 130
 131 RESULT eServiceFactoryMP3::offlineOperations(const eServiceReference &ref, ePtr<iServiceOfflineOperations> &ptr)
 132 {
 133         ptr = new eMP3ServiceOfflineOperations(ref);
 134         return 0;
 135 }
 136
 137 // eStaticServiceMP3Info
 138
 139
 140 // eStaticServiceMP3Info is seperated from eServiceMP3 to give information
 141 // about unopened files.
 142
 143 // probably eServiceMP3 should use this class as well, and eStaticServiceMP3Info
 144 // should have a database backend where ID3-files etc. are cached.
 145 // this would allow listing the mp3 database based on certain filters.
 146
 147 DEFINE_REF(eStaticServiceMP3Info)
 148
 149 eStaticServiceMP3Info::eStaticServiceMP3Info()
 150 {
 151 }
 152
 153 RESULT eStaticServiceMP3Info::getName(const eServiceReference &ref, std::string &name)
 154 {
 155         size_t last = ref.path.rfind('/');
 156         if (last != std::string::npos)
 157                 name = ref.path.substr(last+1);
 158         else
 159                 name = ref.path;
 160         return 0;
 161 }
 162
 163 int eStaticServiceMP3Info::getLength(const eServiceReference &ref)
 164 {
 165         return -1;
 166 }
 167
 168 // eServiceMP3
 169
 170 eServiceMP3::eServiceMP3(const char *filename): m_filename(filename), m_pump(eApp, 1)
 171 {
 172         m_stream_tags = 0;
 173         m_audioStreams.clear();
 174         m_subtitleStreams.clear();
 175         m_currentAudioStream = 0;
 176         m_currentSubtitleStream = 0;
 177         m_subtitle_widget = 0;
 178         m_currentTrickRatio = 0;
 179         CONNECT(m_seekTimeout.timeout, eServiceMP3::seekTimeoutCB);
 180         CONNECT(m_pump.recv_msg, eServiceMP3::gstPoll);
 181         GstElement *source = 0;
 182
 183         GstElement *filter = 0, *decoder = 0, *conv = 0, *flt = 0, *sink = 0; /* for audio */
 184
 185         GstElement *audio = 0, *switch_audio = 0, *queue_audio = 0, *video = 0, *queue_video = 0, *videodemux = 0;
 186
 187         m_state = stIdle;
 188         eDebug("SERVICEMP3 construct!");
 189
 190                 /* FIXME: currently, decodebin isn't possible for
 191                    video streams. in that case, make a manual pipeline. */
 192
 193         const char *ext = strrchr(filename, '.');
 194         if (!ext)
 195                 ext = filename;
 196
 197         int is_mpeg_ps = !(strcasecmp(ext, ".mpeg") && strcasecmp(ext, ".mpg") && strcasecmp(ext, ".vob") && strcasecmp(ext, ".bin"));
 198         int is_mpeg_ts = !strcasecmp(ext, ".ts");
 199         int is_matroska = !strcasecmp(ext, ".mkv");
 200         int is_avi = !strcasecmp(ext, ".avi");
 201         int is_mp3 = !strcasecmp(ext, ".mp3"); /* force mp3 instead of decodebin */
 202         int is_video = is_mpeg_ps || is_mpeg_ts || is_matroska || is_avi;
 203         int is_streaming = !strncmp(filename, "http://", 7);
 204         int is_AudioCD = !(strncmp(filename, "/autofs/", 8) || strncmp(filename+strlen(filename)-13, "/track-", 7) || strcasecmp(ext, ".wav"));
 205
 206         eDebug("filename: %s, is_mpeg_ps: %d, is_mpeg_ts: %d, is_video: %d, is_streaming: %d, is_mp3: %d, is_matroska: %d, is_avi: %d, is_AudioCD: %d", filename, is_mpeg_ps, is_mpeg_ts, is_video, is_streaming, is_mp3, is_matroska, is_avi, is_AudioCD);
 207
 208         int is_audio = !is_video;
 209
 210         int all_ok = 0;
 211
 212         m_gst_pipeline = gst_pipeline_new ("mediaplayer");
 213         if (!m_gst_pipeline)
 214                 eWarning("failed to create pipeline");
 215
 216         if (is_AudioCD)
 217         {
 218                 source = gst_element_factory_make ("cdiocddasrc", "cda-source");
 219                 if (source)
 220                         g_object_set (G_OBJECT (source), "device", "/dev/cdroms/cdrom0", NULL);
 221                 else
 222                         is_AudioCD = 0;
 223         }
 224         if ( !is_streaming && !is_AudioCD )
 225                 source = gst_element_factory_make ("filesrc", "file-source");
 226         else if ( is_streaming )
 227         {
 228                 source = gst_element_factory_make ("neonhttpsrc", "http-source");
 229                 if (source)
 230                         g_object_set (G_OBJECT (source), "automatic-redirect", TRUE, NULL);
 231         }
 232
 233         if (!source)
 234                 eWarning("failed to create %s", is_streaming ? "neonhttpsrc" : "filesrc");
 235                                 /* configure source */
 236         else if (!is_AudioCD)
 237                 g_object_set (G_OBJECT (source), "location", filename, NULL);
 238         else
 239         {
 240                 int track = atoi(filename+18);
 241                 eDebug("play audio CD track #%i",track);
 242                 if (track > 0)
 243                         g_object_set (G_OBJECT (source), "track", track, NULL);
 244         }
 245
 246         if (is_audio)
 247         {
 248                         /* filesrc -> decodebin -> audioconvert -> capsfilter -> alsasink */
 249                 const char *decodertype = is_mp3 ? "mad" : "decodebin";
 250
 251                 decoder = gst_element_factory_make (decodertype, "decoder");
 252                 if (!decoder)
 253                         eWarning("failed to create %s decoder", decodertype);
 254
 255                         /* mp3 decoding needs id3demux to extract ID3 data. 'decodebin' would do that internally. */
 256                 if (is_mp3)
 257                 {
 258                         filter = gst_element_factory_make ("id3demux", "filter");
 259                         if (!filter)
 260                                 eWarning("failed to create id3demux");
 261                 }
 262
 263                 conv = gst_element_factory_make ("audioconvert", "converter");
 264                 if (!conv)
 265                         eWarning("failed to create audioconvert");
 266
 267                 flt = gst_element_factory_make ("capsfilter", "flt");
 268                 if (!flt)
 269                         eWarning("failed to create capsfilter");
 270
 271                         /* for some reasons, we need to set the sample format to depth/width=16, because auto negotiation doesn't work. */
 272                         /* endianness, however, is not required to be set anymore. */
 273                 if (flt)
 274                 {
 275                         GstCaps *caps = gst_caps_new_simple("audio/x-raw-int", /* "endianness", G_TYPE_INT, 4321, */ "depth", G_TYPE_INT, 16, "width", G_TYPE_INT, 16, /*"channels", G_TYPE_INT, 2, */(char*)0);
 276                         g_object_set (G_OBJECT (flt), "caps", caps, (char*)0);
 277                         gst_caps_unref(caps);
 278                 }
 279
 280                 sink = gst_element_factory_make ("alsasink", "alsa-output");
 281                 if (!sink)
 282                         eWarning("failed to create osssink");
 283
 284                 if (source && decoder && conv && sink)
 285                         all_ok = 1;
 286         } else /* is_video */
 287         {
 288                         /* filesrc -> mpegdemux -> | queue_audio -> dvbaudiosink
 289                                                    | queue_video -> dvbvideosink */
 290
 291                 audio = gst_element_factory_make("dvbaudiosink", "audiosink");
 292                 queue_audio = gst_element_factory_make("queue", "queue_audio");
 293
 294                 video = gst_element_factory_make("dvbvideosink", "videosink");
 295                 queue_video = gst_element_factory_make("queue", "queue_video");
 296
 297                 if (is_mpeg_ps)
 298                         videodemux = gst_element_factory_make("flupsdemux", "videodemux");
 299                 else if (is_mpeg_ts)
 300                         videodemux = gst_element_factory_make("flutsdemux", "videodemux");
 301                 else if (is_matroska)
 302                         videodemux = gst_element_factory_make("matroskademux", "videodemux");
 303                 else if (is_avi)
 304                         videodemux = gst_element_factory_make("avidemux", "videodemux");
 305
 306                 if (!videodemux)
 307                 {
 308                         eDebug("fluendo mpegdemux not available, falling back to mpegdemux\n");
 309                         videodemux = gst_element_factory_make("mpegdemux", "videodemux");
 310                 }
 311
 312                 eDebug("audio: %p, queue_audio %p, video %p, queue_video %p, videodemux %p", audio, queue_audio, video, queue_video, videodemux);
 313                 if (audio && queue_audio && video && queue_video && videodemux)
 314                 {
 315                         g_object_set (G_OBJECT (queue_audio), "max-size-bytes", 256*1024, NULL);
 316                         g_object_set (G_OBJECT (queue_audio), "max-size-buffers", 0, NULL);
 317                         g_object_set (G_OBJECT (queue_audio), "max-size-time", (guint64)0, NULL);
 318                         g_object_set (G_OBJECT (queue_video), "max-size-buffers", 0, NULL);
 319                         g_object_set (G_OBJECT (queue_video), "max-size-bytes", 2*1024*1024, NULL);
 320                         g_object_set (G_OBJECT (queue_video), "max-size-time", (guint64)0, NULL);
 321                         all_ok = 1;
 322                 }
 323         }
 324
 325         if (m_gst_pipeline && all_ok)
 326         {
 327                 gst_bus_set_sync_handler(gst_pipeline_get_bus (GST_PIPELINE (m_gst_pipeline)), gstBusSyncHandler, this);
 328
 329                 if (is_AudioCD)
 330                 {
 331                         queue_audio = gst_element_factory_make("queue", "queue_audio");
 332                         g_object_set (G_OBJECT (sink), "preroll-queue-len", 80, NULL);
 333                         gst_bin_add_many (GST_BIN (m_gst_pipeline), source, queue_audio, conv, sink, NULL);
 334                         gst_element_link_many(source, queue_audio, conv, sink, NULL);
 335                 }
 336                 else if (is_audio)
 337                 {
 338                         queue_audio = gst_element_factory_make("queue", "queue_audio");
 339
 340                         if (!is_mp3)
 341                         {
 342                                         /* decodebin has dynamic pads. When they get created, we connect them to the audio bin */
 343                                 g_signal_connect (decoder, "new-decoded-pad", G_CALLBACK(gstCBnewPad), this);
 344                                 g_signal_connect (decoder, "unknown-type", G_CALLBACK(gstCBunknownType), this);
 345                                 g_object_set (G_OBJECT (sink), "preroll-queue-len", 80, NULL);
 346                         }
 347
 348                                 /* gst_bin will take the 'floating references' */
 349                         gst_bin_add_many (GST_BIN (m_gst_pipeline),
 350                                                 source, queue_audio, decoder, NULL);
 351
 352                         if (filter)
 353                         {
 354                                         /* id3demux also has dynamic pads, which need to be connected to the decoder (this is done in the 'gstCBfilterPadAdded' CB) */
 355                                 gst_bin_add(GST_BIN(m_gst_pipeline), filter);
 356                                 gst_element_link(source, filter);
 357                                 g_signal_connect (filter, "pad-added", G_CALLBACK(gstCBfilterPadAdded), this);
 358                         } else
 359                                         /* in decodebin's case we can just connect the source with the decodebin, and decodebin will take care about id3demux (or whatever is required) */
 360                                 gst_element_link_many(source, queue_audio, decoder, NULL);
 361
 362                                 /* create audio bin with the audioconverter, the capsfilter and the audiosink */
 363                         audio = gst_bin_new ("audiobin");
 364
 365                         GstPad *audiopad = gst_element_get_static_pad (conv, "sink");
 366                         gst_bin_add_many(GST_BIN(audio), conv, flt, sink, (char*)0);
 367                         gst_element_link_many(conv, flt, sink, (char*)0);
 368                         gst_element_add_pad(audio, gst_ghost_pad_new ("sink", audiopad));
 369                         gst_object_unref(audiopad);
 370                         gst_bin_add (GST_BIN(m_gst_pipeline), audio);
 371                                 /* in mad's case, we can directly connect the decoder to the audiobin. otherwise, we do this in gstCBnewPad */
 372                         if (is_mp3)
 373                                 gst_element_link(decoder, audio);
 374                         audioStream audioStreamElem;
 375                         m_audioStreams.push_back(audioStreamElem);
 376                 } else /* is_video */
 377                 {
 378                         gst_bin_add_many(GST_BIN(m_gst_pipeline), source, videodemux, audio, queue_audio, video, queue_video, NULL);
 379                         switch_audio = gst_element_factory_make ("input-selector", "switch_audio");
 380                         if (switch_audio)
 381                         {
 382                                 g_object_set (G_OBJECT (switch_audio), "select-all", TRUE, NULL);
 383                                 gst_bin_add(GST_BIN(m_gst_pipeline), switch_audio);
 384                                 gst_element_link(switch_audio, queue_audio);
 385                         }
 386                         gst_element_link(source, videodemux);
 387                         gst_element_link(queue_audio, audio);
 388                         gst_element_link(queue_video, video);
 389                         g_signal_connect(videodemux, "pad-added", G_CALLBACK (gstCBpadAdded), this);
 390                 }
 391         } else
 392         {
 393                 if (m_gst_pipeline)
 394                         gst_object_unref(GST_OBJECT(m_gst_pipeline));
 395                 if (source)
 396                         gst_object_unref(GST_OBJECT(source));
 397                 if (decoder)
 398                         gst_object_unref(GST_OBJECT(decoder));
 399                 if (conv)
 400                         gst_object_unref(GST_OBJECT(conv));
 401                 if (sink)
 402                         gst_object_unref(GST_OBJECT(sink));
 403
 404                 if (audio)
 405                         gst_object_unref(GST_OBJECT(audio));
 406                 if (queue_audio)
 407                         gst_object_unref(GST_OBJECT(queue_audio));
 408                 if (video)
 409                         gst_object_unref(GST_OBJECT(video));
 410                 if (queue_video)
 411                         gst_object_unref(GST_OBJECT(queue_video));
 412                 if (videodemux)
 413                         gst_object_unref(GST_OBJECT(videodemux));
 414                 if (switch_audio)
 415                         gst_object_unref(GST_OBJECT(switch_audio));
 416
 417                 eDebug("sorry, can't play.");
 418                 m_gst_pipeline = 0;
 419         }
 420
 421         gst_element_set_state (m_gst_pipeline, GST_STATE_PLAYING);
 422 }
 423
 424 eServiceMP3::~eServiceMP3()
 425 {
 426         delete m_subtitle_widget;
 427         if (m_state == stRunning)
 428                 stop();
 429
 430         if (m_stream_tags)
 431                 gst_tag_list_free(m_stream_tags);
 432
 433         if (m_gst_pipeline)
 434         {
 435                 gst_object_unref (GST_OBJECT (m_gst_pipeline));
 436                 eDebug("SERVICEMP3 destruct!");
 437         }
 438 }
 439
 440 DEFINE_REF(eServiceMP3);
 441
 442 RESULT eServiceMP3::connectEvent(const Slot2<void,iPlayableService*,int> &event, ePtr<eConnection> &connection)
 443 {
 444         connection = new eConnection((iPlayableService*)this, m_event.connect(event));
 445         return 0;
 446 }
 447
 448 RESULT eServiceMP3::start()
 449 {
 450         assert(m_state == stIdle);
 451
 452         m_state = stRunning;
 453         if (m_gst_pipeline)
 454         {
 455                 eDebug("starting pipeline");
 456                 gst_element_set_state (m_gst_pipeline, GST_STATE_PLAYING);
 457         }
 458         m_event(this, evStart);
 459         return 0;
 460 }
 461
 462 RESULT eServiceMP3::stop()
 463 {
 464         assert(m_state != stIdle);
 465         if (m_state == stStopped)
 466                 return -1;
 467         eDebug("MP3: %s stop\n", m_filename.c_str());
 468         gst_element_set_state(m_gst_pipeline, GST_STATE_NULL);
 469         m_state = stStopped;
 470         return 0;
 471 }
 472
 473 RESULT eServiceMP3::setTarget(int target)
 474 {
 475         return -1;
 476 }
 477
 478 RESULT eServiceMP3::pause(ePtr<iPauseableService> &ptr)
 479 {
 480         ptr=this;
 481         return 0;
 482 }
 483
 484 RESULT eServiceMP3::setSlowMotion(int ratio)
 485 {
 486         /* we can't do slomo yet */
 487         return -1;
 488 }
 489
 490 RESULT eServiceMP3::setFastForward(int ratio)
 491 {
 492         m_currentTrickRatio = ratio;
 493         if (ratio)
 494                 m_seekTimeout.start(1000, 0);
 495         else
 496                 m_seekTimeout.stop();
 497         return 0;
 498 }
 499
 500 void eServiceMP3::seekTimeoutCB()
 501 {
 502         pts_t ppos, len;
 503         getPlayPosition(ppos);
 504         getLength(len);
 505         ppos += 90000*m_currentTrickRatio;
 506
 507         if (ppos < 0)
 508         {
 509                 ppos = 0;
 510                 m_seekTimeout.stop();
 511         }
 512         if (ppos > len)
 513         {
 514                 ppos = 0;
 515                 stop();
 516                 m_seekTimeout.stop();
 517                 return;
 518         }
 519         seekTo(ppos);
 520 }
 521
 522                 // iPausableService
 523 RESULT eServiceMP3::pause()
 524 {
 525         if (!m_gst_pipeline)
 526                 return -1;
 527         GstStateChangeReturn res = gst_element_set_state(m_gst_pipeline, GST_STATE_PAUSED);
 528         if (res == GST_STATE_CHANGE_ASYNC)
 529         {
 530                 pts_t ppos;
 531                 getPlayPosition(ppos);
 532                 seekTo(ppos);
 533         }
 534         return 0;
 535 }
 536
 537 RESULT eServiceMP3::unpause()
 538 {
 539         if (!m_gst_pipeline)
 540                 return -1;
 541
 542         GstStateChangeReturn res;
 543         res = gst_element_set_state(m_gst_pipeline, GST_STATE_PLAYING);
 544         return 0;
 545 }
 546
 547         /* iSeekableService */
 548 RESULT eServiceMP3::seek(ePtr<iSeekableService> &ptr)
 549 {
 550         ptr = this;
 551         return 0;
 552 }
 553
 554 RESULT eServiceMP3::getLength(pts_t &pts)
 555 {
 556         if (!m_gst_pipeline)
 557                 return -1;
 558         if (m_state != stRunning)
 559                 return -1;
 560
 561         GstFormat fmt = GST_FORMAT_TIME;
 562         gint64 len;
 563
 564         if (!gst_element_query_duration(m_gst_pipeline, &fmt, &len))
 565                 return -1;
 566
 567                 /* len is in nanoseconds. we have 90 000 pts per second. */
 568
 569         pts = len / 11111;
 570         return 0;
 571 }
 572
 573 RESULT eServiceMP3::seekTo(pts_t to)
 574 {
 575         if (!m_gst_pipeline)
 576                 return -1;
 577
 578                 /* convert pts to nanoseconds */
 579         gint64 time_nanoseconds = to * 11111LL;
 580         if (!gst_element_seek (m_gst_pipeline, 1.0, GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH,
 581                 GST_SEEK_TYPE_SET, time_nanoseconds,
 582                 GST_SEEK_TYPE_NONE, GST_CLOCK_TIME_NONE))
 583         {
 584                 eDebug("SEEK failed");
 585                 return -1;
 586         }
 587         return 0;
 588 }
 589
 590 RESULT eServiceMP3::seekRelative(int direction, pts_t to)
 591 {
 592         if (!m_gst_pipeline)
 593                 return -1;
 594
 595         pts_t ppos;
 596         getPlayPosition(ppos);
 597         ppos += to * direction;
 598         if (ppos < 0)
 599                 ppos = 0;
 600         seekTo(ppos);
 601
 602         return 0;
 603 }
 604
 605 RESULT eServiceMP3::getPlayPosition(pts_t &pts)
 606 {
 607         if (!m_gst_pipeline)
 608                 return -1;
 609         if (m_state != stRunning)
 610                 return -1;
 611
 612         GstFormat fmt = GST_FORMAT_TIME;
 613         gint64 len;
 614
 615         if (!gst_element_query_position(m_gst_pipeline, &fmt, &len))
 616                 return -1;
 617
 618                 /* len is in nanoseconds. we have 90 000 pts per second. */
 619         pts = len / 11111;
 620         return 0;
 621 }
 622
 623 RESULT eServiceMP3::setTrickmode(int trick)
 624 {
 625                 /* trickmode is not yet supported by our dvbmediasinks. */
 626         return -1;
 627 }
 628
 629 RESULT eServiceMP3::isCurrentlySeekable()
 630 {
 631         return 1;
 632 }
 633
 634 RESULT eServiceMP3::info(ePtr<iServiceInformation>&i)
 635 {
 636         i = this;
 637         return 0;
 638 }
 639
 640 RESULT eServiceMP3::getName(std::string &name)
 641 {
 642         name = m_filename;
 643         size_t n = name.rfind('/');
 644         if (n != std::string::npos)
 645                 name = name.substr(n + 1);
 646         return 0;
 647 }
 648
 649 int eServiceMP3::getInfo(int w)
 650 {
 651         gchar *tag = 0;
 652
 653         switch (w)
 654         {
 655         case sTitle:
 656         case sArtist:
 657         case sAlbum:
 658         case sComment:
 659         case sTracknumber:
 660         case sGenre:
 661         case sVideoType:
 662                 return resIsString;
 663         case sCurrentTitle:
 664                 tag = GST_TAG_TRACK_NUMBER;
 665                 break;
 666         case sTotalTitles:
 667                 tag = GST_TAG_TRACK_COUNT;
 668                 break;
 669         default:
 670                 return resNA;
 671         }
 672
 673         if (!m_stream_tags || !tag)
 674                 return 0;
 675
 676         guint value;
 677         if (gst_tag_list_get_uint(m_stream_tags, tag, &value))
 678                 return (int) value;
 679
 680         return 0;
 681
 682 }
 683
 684 std::string eServiceMP3::getInfoString(int w)
 685 {
 686         gchar *tag = 0;
 687         switch (w)
 688         {
 689         case sTitle:
 690                 tag = GST_TAG_TITLE;
 691                 break;
 692         case sArtist:
 693                 tag = GST_TAG_ARTIST;
 694                 break;
 695         case sAlbum:
 696                 tag = GST_TAG_ALBUM;
 697                 break;
 698         case sComment:
 699                 tag = GST_TAG_COMMENT;
 700                 break;
 701         case sTracknumber:
 702                 tag = GST_TAG_TRACK_NUMBER;
 703                 break;
 704         case sGenre:
 705                 tag = GST_TAG_GENRE;
 706                 break;
 707         case sVideoType:
 708                 tag = GST_TAG_VIDEO_CODEC;
 709                 break;
 710         default:
 711                 return "";
 712         }
 713
 714         if (!m_stream_tags || !tag)
 715                 return "";
 716
 717         gchar *value;
 718
 719         if (gst_tag_list_get_string(m_stream_tags, tag, &value))
 720         {
 721                 std::string res = value;
 722                 g_free(value);
 723                 return res;
 724         }
 725
 726         return "";
 727 }
 728
 729 RESULT eServiceMP3::audioChannel(ePtr<iAudioChannelSelection> &ptr)
 730 {
 731         ptr = this;
 732         return 0;
 733 }
 734
 735 RESULT eServiceMP3::audioTracks(ePtr<iAudioTrackSelection> &ptr)
 736 {
 737         ptr = this;
 738         return 0;
 739 }
 740
 741 RESULT eServiceMP3::subtitle(ePtr<iSubtitleOutput> &ptr)
 742 {
 743         ptr = this;
 744         return 0;
 745 }
 746
 747 int eServiceMP3::getNumberOfTracks()
 748 {
 749         return m_audioStreams.size();
 750 }
 751
 752 int eServiceMP3::getCurrentTrack()
 753 {
 754         return m_currentAudioStream;
 755 }
 756
 757 RESULT eServiceMP3::selectTrack(unsigned int i)
 758 {
 759         int ret = selectAudioStream(i);
 760         /* flush */
 761         pts_t ppos;
 762         getPlayPosition(ppos);
 763         seekTo(ppos);
 764
 765         return ret;
 766 }
 767
 768 int eServiceMP3::selectAudioStream(int i)
 769 {
 770         gint nb_sources;
 771         GstPad *active_pad;
 772         GstElement *selector = gst_bin_get_by_name(GST_BIN(m_gst_pipeline),"switch_audio");
 773         if ( !selector)
 774         {
 775                 eDebug("can't switch audio tracks! gst-plugin-selector needed");
 776                 return -1;
 777         }
 778         g_object_get (G_OBJECT (selector), "n-pads", &nb_sources, NULL);
 779         if ( i >= m_audioStreams.size() || i >= nb_sources || m_currentAudioStream >= m_audioStreams.size() )
 780                 return -2;
 781         char sinkpad[8];
 782         sprintf(sinkpad, "sink%d", i);
 783         g_object_set (G_OBJECT (selector), "active-pad", gst_element_get_pad (selector, sinkpad), NULL);
 784         g_object_get (G_OBJECT (selector), "active-pad", &active_pad, NULL);
 785         gchar *name;
 786         name = gst_pad_get_name (active_pad);
 787         eDebug ("switched audio to (%s)", name);
 788         g_free(name);
 789         m_currentAudioStream = i;
 790         return 0;
 791 }
 792
 793 int eServiceMP3::getCurrentChannel()
 794 {
 795         return STEREO;
 796 }
 797
 798 RESULT eServiceMP3::selectChannel(int i)
 799 {
 800         eDebug("eServiceMP3::selectChannel(%i)",i);
 801         return 0;
 802 }
 803
 804 RESULT eServiceMP3::getTrackInfo(struct iAudioTrackInfo &info, unsigned int i)
 805 {
 806 //      eDebug("eServiceMP3::getTrackInfo(&info, %i)",i);
 807         if (i >= m_audioStreams.size())
 808                 return -2;
 809         if (m_audioStreams[i].type == audioStream::atMP2)
 810                 info.m_description = "MP2";
 811         else if (m_audioStreams[i].type == audioStream::atMP3)
 812                 info.m_description = "MP3";
 813         else if (m_audioStreams[i].type == audioStream::atAC3)
 814                 info.m_description = "AC3";
 815         else if (m_audioStreams[i].type == audioStream::atAAC)
 816                 info.m_description = "AAC";
 817         else if (m_audioStreams[i].type == audioStream::atDTS)
 818                 info.m_description = "DTS";
 819         else if (m_audioStreams[i].type == audioStream::atPCM)
 820                 info.m_description = "PCM";
 821         else if (m_audioStreams[i].type == audioStream::atOGG)
 822                 info.m_description = "OGG";
 823         else
 824                 info.m_description = "???";
 825         if (info.m_language.empty())
 826                 info.m_language = m_audioStreams[i].language_code;
 827         return 0;
 828 }
 829
 830 void eServiceMP3::gstBusCall(GstBus *bus, GstMessage *msg)
 831 {
 832         if (!msg)
 833                 return;
 834         gchar *sourceName;
 835         GstObject *source;
 836
 837         source = GST_MESSAGE_SRC(msg);
 838         sourceName = gst_object_get_name(source);
 839
 840         if (gst_message_get_structure(msg))
 841         {
 842                 gchar *string = gst_structure_to_string(gst_message_get_structure(msg));
 843                 eDebug("gst_message from %s: %s", sourceName, string);
 844                 g_free(string);
 845         }
 846         else
 847                 eDebug("gst_message from %s: %s (without structure)", sourceName, GST_MESSAGE_TYPE_NAME(msg));
 848
 849         switch (GST_MESSAGE_TYPE (msg))
 850         {
 851         case GST_MESSAGE_EOS:
 852                 m_event((iPlayableService*)this, evEOF);
 853                 break;
 854         case GST_MESSAGE_ERROR:
 855         {
 856                 gchar *debug;
 857                 GError *err;
 858
 859                 gst_message_parse_error (msg, &err, &debug);
 860                 g_free (debug);
 861                 eWarning("Gstreamer error: %s (%i)", err->message, err->code );
 862                 if ( err->domain == GST_STREAM_ERROR && err->code == GST_STREAM_ERROR_DECODE )
 863                 {
 864                         if ( g_strrstr(sourceName, "videosink") )
 865                                 m_event((iPlayableService*)this, evUser+11);
 866                 }
 867                 g_error_free(err);
 868                         /* TODO: signal error condition to user */
 869                 break;
 870         }
 871         case GST_MESSAGE_TAG:
 872         {
 873                 GstTagList *tags, *result;
 874                 gst_message_parse_tag(msg, &tags);
 875
 876                 result = gst_tag_list_merge(m_stream_tags, tags, GST_TAG_MERGE_PREPEND);
 877                 if (result)
 878                 {
 879                         if (m_stream_tags)
 880                                 gst_tag_list_free(m_stream_tags);
 881                         m_stream_tags = result;
 882                 }
 883                 gchar *g_audiocodec;
 884                 if (gst_tag_list_get_string(tags, GST_TAG_AUDIO_CODEC, &g_audiocodec) && m_audioStreams.size())
 885                 {
 886                         std::vector<audioStream>::iterator IterAudioStream = m_audioStreams.begin();
 887                         while ( IterAudioStream->language_code.length() && IterAudioStream != m_audioStreams.end())
 888                                 IterAudioStream++;
 889                         if ( g_strrstr(g_audiocodec, "MPEG-1 layer 2") )
 890                                 IterAudioStream->type = audioStream::atMP2;
 891                         else if ( g_strrstr(g_audiocodec, "MPEG-1 layer 3") )
 892                                 IterAudioStream->type = audioStream::atMP3;
 893                         else if ( g_strrstr(g_audiocodec, "AC-3 audio") )
 894                                 IterAudioStream->type = audioStream::atAC3;
 895                         else if ( g_strrstr(g_audiocodec, "Uncompressed 16-bit PCM audio") )
 896                                 IterAudioStream->type = audioStream::atPCM;
 897                         gchar *g_language;
 898                         if ( gst_tag_list_get_string(tags, GST_TAG_LANGUAGE_CODE, &g_language) )
 899                                 IterAudioStream->language_code = std::string(g_language);
 900                         g_free (g_language);
 901                         g_free (g_audiocodec);
 902                 }
 903                 break;
 904         }
 905         default:
 906                 break;
 907         }
 908         g_free (sourceName);
 909 }
 910
 911 GstBusSyncReply eServiceMP3::gstBusSyncHandler(GstBus *bus, GstMessage *message, gpointer user_data)
 912 {
 913         eServiceMP3 *_this = (eServiceMP3*)user_data;
 914         _this->m_pump.send(1);
 915                 /* wake */
 916         return GST_BUS_PASS;
 917 }
 918
 919 void eServiceMP3::gstCBpadAdded(GstElement *decodebin, GstPad *pad, gpointer user_data)
 920 {
 921         eServiceMP3 *_this = (eServiceMP3*)user_data;
 922         GstBin *pipeline = GST_BIN(_this->m_gst_pipeline);
 923         gchar *name;
 924         name = gst_pad_get_name (pad);
 925         eDebug ("A new pad %s was created", name);
 926         if (g_strrstr(name,"audio")) // mpegdemux, matroskademux, avidemux use video_nn with n=0,1,.., flupsdemux uses stream id
 927         {
 928                 GstElement *selector = gst_bin_get_by_name(pipeline , "switch_audio" );
 929                 audioStream audio;
 930                 audio.pad = pad;
 931                 _this->m_audioStreams.push_back(audio);
 932                 if ( selector )
 933                 {
 934                         gst_pad_link(pad, gst_element_get_request_pad (selector, "sink%d"));
 935                         if ( _this->m_audioStreams.size() == 1 )
 936                         {
 937                                 _this->selectAudioStream(0);
 938                                 gst_element_set_state (_this->m_gst_pipeline, GST_STATE_PLAYING);
 939                         }
 940                         else
 941                                 g_object_set (G_OBJECT (selector), "select-all", FALSE, NULL);
 942                 }
 943                 else
 944                         gst_pad_link(pad, gst_element_get_static_pad(gst_bin_get_by_name(pipeline,"queue_audio"), "sink"));
 945         }
 946         if (g_strrstr(name,"video"))
 947         {
 948                 gst_pad_link(pad, gst_element_get_static_pad(gst_bin_get_by_name(pipeline,"queue_video"), "sink"));
 949         }
 950         if (g_strrstr(name,"subtitle"))
 951         {
 952 //              GstCaps *caps;
 953 //              const GstStructure *structure;
 954 //              caps = gst_pad_get_caps(name);
 955 //              structure = gst_caps_get_structure(caps, 0);
 956                 char elemname[17];
 957                 sprintf(elemname, "%s_pars", name);
 958                 GstElement *parser = gst_element_factory_make("ssaparse", elemname);
 959                 eDebug ("ssaparse %s = %p", elemname, parser);
 960                 sprintf(elemname, "%s_sink", name);
 961                 GstElement *sink = gst_element_factory_make("fakesink", elemname);
 962                 eDebug ("fakesink %s = %p", elemname, sink);
 963                 g_object_set (G_OBJECT(sink), "signal-handoffs", TRUE, NULL);
 964                 gst_bin_add_many(pipeline, parser, sink, NULL);
 965                 GstPadLinkReturn res = gst_pad_link(pad, gst_element_get_static_pad(parser, "sink"));
 966                 eDebug ("parser link = %d", res);
 967                 res = gst_element_link(parser, sink);
 968                 eDebug ("sink link = %d", res);
 969                 g_signal_connect(sink, "handoff", G_CALLBACK(gstCBsubtitleAvail), _this);
 970                 subtitleStream subs;
 971                 subs.element = sink;
 972                 _this->m_subtitleStreams.push_back(subs);
 973         }
 974         g_free (name);
 975 }
 976
 977 void eServiceMP3::gstCBfilterPadAdded(GstElement *filter, GstPad *pad, gpointer user_data)
 978 {
 979         eServiceMP3 *_this = (eServiceMP3*)user_data;
 980         GstElement *decoder = gst_bin_get_by_name(GST_BIN(_this->m_gst_pipeline),"decoder");
 981         gst_pad_link(pad, gst_element_get_static_pad (decoder, "sink"));
 982 }
 983
 984 void eServiceMP3::gstCBnewPad(GstElement *decodebin, GstPad *pad, gboolean last, gpointer user_data)
 985 {
 986         eServiceMP3 *_this = (eServiceMP3*)user_data;
 987         GstCaps *caps;
 988         GstStructure *str;
 989         GstPad *audiopad;
 990
 991         /* only link once */
 992         GstElement *audio = gst_bin_get_by_name(GST_BIN(_this->m_gst_pipeline),"audiobin");
 993         audiopad = gst_element_get_static_pad (audio, "sink");
 994         if ( !audiopad || GST_PAD_IS_LINKED (audiopad)) {
 995                 eDebug("audio already linked!");
 996                 g_object_unref (audiopad);
 997                 return;
 998         }
 999
1000         /* check media type */
1001         caps = gst_pad_get_caps (pad);
1002         str = gst_caps_get_structure (caps, 0);
1003         eDebug("gst new pad! %s", gst_structure_get_name (str));
1004
1005         if (!g_strrstr (gst_structure_get_name (str), "audio")) {
1006                 gst_caps_unref (caps);
1007                 gst_object_unref (audiopad);
1008                 return;
1009         }
1010
1011         gst_caps_unref (caps);
1012         gst_pad_link (pad, audiopad);
1013 }
1014
1015 void eServiceMP3::gstCBunknownType(GstElement *decodebin, GstPad *pad, GstCaps *caps, gpointer user_data)
1016 {
1017         GstStructure *str;
1018
1019         /* check media type */
1020         caps = gst_pad_get_caps (pad);
1021         str = gst_caps_get_structure (caps, 0);
1022         eDebug("unknown type: %s - this can't be decoded.", gst_structure_get_name (str));
1023         gst_caps_unref (caps);
1024 }
1025
1026 void eServiceMP3::gstPoll(const int&)
1027 {
1028                 /* ok, we have a serious problem here. gstBusSyncHandler sends
1029                    us the wakup signal, but likely before it was posted.
1030                    the usleep, an EVIL HACK (DON'T DO THAT!!!) works around this.
1031
1032                    I need to understand the API a bit more to make this work
1033                    proplerly. */
1034         usleep(1);
1035
1036         GstBus *bus = gst_pipeline_get_bus (GST_PIPELINE (m_gst_pipeline));
1037         GstMessage *message;
1038         while ((message = gst_bus_pop (bus)))
1039         {
1040                 gstBusCall(bus, message);
1041                 gst_message_unref (message);
1042         }
1043 }
1044
1045 eAutoInitPtr<eServiceFactoryMP3> init_eServiceFactoryMP3(eAutoInitNumbers::service+1, "eServiceFactoryMP3");
1046 #else
1047 #warning gstreamer not available, not building media player
1048 #endif
1049
1050 void eServiceMP3::gstCBsubtitleAvail(GstElement *element, GstBuffer *buffer, GstPad *pad, gpointer user_data)
1051 {
1052         const char *text = (unsigned char *)GST_BUFFER_DATA(buffer);
1053         eServiceMP3 *_this = (eServiceMP3*)user_data;
1054         gchar *sourceName;
1055         sourceName = gst_object_get_name(GST_OBJECT(element));
1056         if ( _this->m_subtitle_widget && _this->m_subtitleStreams.at(_this->m_currentSubtitleStream).element == element)
1057         {
1058                 eDVBTeletextSubtitlePage page;
1059                 gRGB rgbcol(0xD0,0xD0,0xD0);
1060                 page.m_elements.push_back(eDVBTeletextSubtitlePageElement(rgbcol, text));
1061                 (_this->m_subtitle_widget)->setPage(page);
1062         }
1063         else
1064                 eDebug("on inactive element: %s (%p) saw subtitle: %s",sourceName, element, text);
1065         return TRUE;
1066 }
1067
1068 RESULT eServiceMP3::enableSubtitles(eWidget *parent, ePyObject tuple)
1069 {
1070         eDebug("eServiceMP3::enableSubtitles");
1071
1072         ePyObject entry;
1073         int tuplesize = PyTuple_Size(tuple);
1074         int type = 0;
1075         int page, magazine, pid;
1076
1077         if (!PyTuple_Check(tuple))
1078                 goto error_out;
1079
1080         if (tuplesize < 1)
1081                 goto error_out;
1082
1083         entry = PyTuple_GET_ITEM(tuple, 0);
1084
1085         if (!PyInt_Check(entry))
1086                 goto error_out;
1087
1088         type = PyInt_AsLong(entry);
1089
1090         entry = PyTuple_GET_ITEM(tuple, 1);
1091         if (!PyInt_Check(entry))
1092                 goto error_out;
1093         pid = PyInt_AsLong(entry);
1094
1095         m_subtitle_widget = new eSubtitleWidget(parent);
1096         m_subtitle_widget->resize(parent->size()); /* full size */
1097         m_currentSubtitleStream = pid;
1098
1099         return 0;
1100 error_out:
1101         eDebug("enableSubtitles needs a tuple as 2nd argument!\n"
1102                 "for gst subtitles (2, subtitle_stream_count)"
1103         return -1;
1104 }
1105
1106 RESULT eServiceMP3::disableSubtitles(eWidget *parent)
1107 {
1108         eDebug("eServiceMP3::disableSubtitles");
1109         delete m_subtitle_widget;
1110         m_subtitle_widget = 0;
1111         return 0;
1112 }
1113
1114 PyObject *eServiceMP3::getCachedSubtitle()
1115 {
1116         eDebug("eServiceMP3::eDVBServicePlay");
1117         Py_RETURN_NONE;
1118 }
1119
1120 PyObject *eServiceMP3::getSubtitleList()
1121 {
1122         eDebug("eServiceMP3::getSubtitleList");
1123
1124         ePyObject l = PyList_New(0);
1125         gchar *sourceName;
1126         int stream_count = 0;
1127
1128         for (std::vector<subtitleStream>::iterator IterSubtitleStream(m_subtitleStreams.begin()); IterSubtitleStream != m_subtitleStreams.end(); ++IterSubtitleStream)
1129         {
1130                 ePyObject tuple = PyTuple_New(5);
1131                 PyTuple_SET_ITEM(tuple, 0, PyInt_FromLong(2));
1132                 PyTuple_SET_ITEM(tuple, 1, PyInt_FromLong(stream_count));
1133                 PyTuple_SET_ITEM(tuple, 2, PyInt_FromLong(0));
1134                 PyTuple_SET_ITEM(tuple, 3, PyInt_FromLong(0));
1135                 sourceName = gst_object_get_name(GST_OBJECT (IterSubtitleStream->element));
1136                 PyTuple_SET_ITEM(tuple, 4, PyString_FromString(sourceName));
1137                 PyList_Append(l, tuple);
1138                 Py_DECREF(tuple);
1139                 stream_count++;
1140         }
1141
1142         return l;
1143 }