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 <sys/stat.h>
  16 /* for subtitles */
  17 #include <lib/gui/esubtitle.h>
  18
  19 // eServiceFactoryMP3
  20
  21 eServiceFactoryMP3::eServiceFactoryMP3()
  22 {
  23         ePtr<eServiceCenter> sc;
  24
  25         eServiceCenter::getPrivInstance(sc);
  26         if (sc)
  27         {
  28                 std::list<std::string> extensions;
  29                 extensions.push_back("mp3");
  30                 extensions.push_back("ogg");
  31                 extensions.push_back("mpg");
  32                 extensions.push_back("vob");
  33                 extensions.push_back("wav");
  34                 extensions.push_back("wave");
  35                 extensions.push_back("mkv");
  36                 extensions.push_back("avi");
  37                 sc->addServiceFactory(eServiceFactoryMP3::id, this, extensions);
  38         }
  39
  40         m_service_info = new eStaticServiceMP3Info();
  41 }
  42
  43 eServiceFactoryMP3::~eServiceFactoryMP3()
  44 {
  45         ePtr<eServiceCenter> sc;
  46
  47         eServiceCenter::getPrivInstance(sc);
  48         if (sc)
  49                 sc->removeServiceFactory(eServiceFactoryMP3::id);
  50 }
  51
  52 DEFINE_REF(eServiceFactoryMP3)
  53
  54         // iServiceHandler
  55 RESULT eServiceFactoryMP3::play(const eServiceReference &ref, ePtr<iPlayableService> &ptr)
  56 {
  57                 // check resources...
  58         ptr = new eServiceMP3(ref.path.c_str());
  59         return 0;
  60 }
  61
  62 RESULT eServiceFactoryMP3::record(const eServiceReference &ref, ePtr<iRecordableService> &ptr)
  63 {
  64         ptr=0;
  65         return -1;
  66 }
  67
  68 RESULT eServiceFactoryMP3::list(const eServiceReference &, ePtr<iListableService> &ptr)
  69 {
  70         ptr=0;
  71         return -1;
  72 }
  73
  74 RESULT eServiceFactoryMP3::info(const eServiceReference &ref, ePtr<iStaticServiceInformation> &ptr)
  75 {
  76         ptr = m_service_info;
  77         return 0;
  78 }
  79
  80 class eMP3ServiceOfflineOperations: public iServiceOfflineOperations
  81 {
  82         DECLARE_REF(eMP3ServiceOfflineOperations);
  83         eServiceReference m_ref;
  84 public:
  85         eMP3ServiceOfflineOperations(const eServiceReference &ref);
  86
  87         RESULT deleteFromDisk(int simulate);
  88         RESULT getListOfFilenames(std::list<std::string> &);
  89 };
  90
  91 DEFINE_REF(eMP3ServiceOfflineOperations);
  92
  93 eMP3ServiceOfflineOperations::eMP3ServiceOfflineOperations(const eServiceReference &ref): m_ref((const eServiceReference&)ref)
  94 {
  95 }
  96
  97 RESULT eMP3ServiceOfflineOperations::deleteFromDisk(int simulate)
  98 {
  99         if (simulate)
 100                 return 0;
 101         else
 102         {
 103                 std::list<std::string> res;
 104                 if (getListOfFilenames(res))
 105                         return -1;
 106
 107                 eBackgroundFileEraser *eraser = eBackgroundFileEraser::getInstance();
 108                 if (!eraser)
 109                         eDebug("FATAL !! can't get background file eraser");
 110
 111                 for (std::list<std::string>::iterator i(res.begin()); i != res.end(); ++i)
 112                 {
 113                         eDebug("Removing %s...", i->c_str());
 114                         if (eraser)
 115                                 eraser->erase(i->c_str());
 116                         else
 117                                 ::unlink(i->c_str());
 118                 }
 119
 120                 return 0;
 121         }
 122 }
 123
 124 RESULT eMP3ServiceOfflineOperations::getListOfFilenames(std::list<std::string> &res)
 125 {
 126         res.clear();
 127         res.push_back(m_ref.path);
 128         return 0;
 129 }
 130
 131
 132 RESULT eServiceFactoryMP3::offlineOperations(const eServiceReference &ref, ePtr<iServiceOfflineOperations> &ptr)
 133 {
 134         ptr = new eMP3ServiceOfflineOperations(ref);
 135         return 0;
 136 }
 137
 138 // eStaticServiceMP3Info
 139
 140
 141 // eStaticServiceMP3Info is seperated from eServiceMP3 to give information
 142 // about unopened files.
 143
 144 // probably eServiceMP3 should use this class as well, and eStaticServiceMP3Info
 145 // should have a database backend where ID3-files etc. are cached.
 146 // this would allow listing the mp3 database based on certain filters.
 147
 148 DEFINE_REF(eStaticServiceMP3Info)
 149
 150 eStaticServiceMP3Info::eStaticServiceMP3Info()
 151 {
 152 }
 153
 154 RESULT eStaticServiceMP3Info::getName(const eServiceReference &ref, std::string &name)
 155 {
 156         size_t last = ref.path.rfind('/');
 157         if (last != std::string::npos)
 158                 name = ref.path.substr(last+1);
 159         else
 160                 name = ref.path;
 161         return 0;
 162 }
 163
 164 int eStaticServiceMP3Info::getLength(const eServiceReference &ref)
 165 {
 166         return -1;
 167 }
 168
 169 // eServiceMP3
 170
 171 eServiceMP3::eServiceMP3(const char *filename): m_filename(filename), m_pump(eApp, 1)
 172 {
 173         m_stream_tags = 0;
 174         m_audioStreams.clear();
 175         m_subtitleStreams.clear();
 176         m_currentAudioStream = 0;
 177         m_currentSubtitleStream = 0;
 178         m_subtitle_widget = 0;
 179         m_currentTrickRatio = 0;
 180         CONNECT(m_seekTimeout.timeout, eServiceMP3::seekTimeoutCB);
 181         CONNECT(m_pump.recv_msg, eServiceMP3::gstPoll);
 182         GstElement *source = 0;
 183
 184         GstElement *filter = 0, *decoder = 0, *conv = 0, *flt = 0, *sink = 0; /* for audio */
 185
 186         GstElement *audio = 0, *switch_audio = 0, *queue_audio = 0, *video = 0, *queue_video = 0, *videodemux = 0;
 187
 188         m_state = stIdle;
 189         eDebug("SERVICEMP3 construct!");
 190
 191                 /* FIXME: currently, decodebin isn't possible for
 192                    video streams. in that case, make a manual pipeline. */
 193
 194         const char *ext = strrchr(filename, '.');
 195         if (!ext)
 196                 ext = filename;
 197
 198         int is_mpeg_ps = !(strcasecmp(ext, ".mpeg") && strcasecmp(ext, ".mpg") && strcasecmp(ext, ".vob") && strcasecmp(ext, ".bin"));
 199         int is_mpeg_ts = !strcasecmp(ext, ".ts");
 200         int is_matroska = !strcasecmp(ext, ".mkv");
 201         int is_avi = !strcasecmp(ext, ".avi");
 202         int is_mp3 = !strcasecmp(ext, ".mp3"); /* force mp3 instead of decodebin */
 203         int is_video = is_mpeg_ps || is_mpeg_ts || is_matroska || is_avi;
 204         int is_streaming = !strncmp(filename, "http://", 7);
 205         int is_AudioCD = !(strncmp(filename, "/autofs/", 8) || strncmp(filename+strlen(filename)-13, "/track-", 7) || strcasecmp(ext, ".wav"));
 206
 207         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);
 208
 209         int is_audio = !is_video;
 210
 211         int all_ok = 0;
 212
 213         m_gst_pipeline = gst_pipeline_new ("mediaplayer");
 214         if (!m_gst_pipeline)
 215                 eWarning("failed to create pipeline");
 216
 217         if (is_AudioCD)
 218         {
 219                 source = gst_element_factory_make ("cdiocddasrc", "cda-source");
 220                 if (source)
 221                         g_object_set (G_OBJECT (source), "device", "/dev/cdroms/cdrom0", NULL);
 222                 else
 223                         is_AudioCD = 0;
 224         }
 225         if ( !is_streaming && !is_AudioCD )
 226                 source = gst_element_factory_make ("filesrc", "file-source");
 227         else if ( is_streaming )
 228         {
 229                 source = gst_element_factory_make ("neonhttpsrc", "http-source");
 230                 if (source)
 231                         g_object_set (G_OBJECT (source), "automatic-redirect", TRUE, NULL);
 232         }
 233
 234         if (!source)
 235                 eWarning("failed to create %s", is_streaming ? "neonhttpsrc" : "filesrc");
 236                                 /* configure source */
 237         else if (!is_AudioCD)
 238                 g_object_set (G_OBJECT (source), "location", filename, NULL);
 239         else
 240         {
 241                 int track = atoi(filename+18);
 242                 eDebug("play audio CD track #%i",track);
 243                 if (track > 0)
 244                         g_object_set (G_OBJECT (source), "track", track, NULL);
 245         }
 246
 247         if (is_audio)
 248         {
 249                         /* filesrc -> decodebin -> audioconvert -> capsfilter -> alsasink */
 250                 const char *decodertype = is_mp3 ? "mad" : "decodebin";
 251
 252                 decoder = gst_element_factory_make (decodertype, "decoder");
 253                 if (!decoder)
 254                         eWarning("failed to create %s decoder", decodertype);
 255
 256                         /* mp3 decoding needs id3demux to extract ID3 data. 'decodebin' would do that internally. */
 257                 if (is_mp3)
 258                 {
 259                         filter = gst_element_factory_make ("id3demux", "filter");
 260                         if (!filter)
 261                                 eWarning("failed to create id3demux");
 262                 }
 263
 264                 conv = gst_element_factory_make ("audioconvert", "converter");
 265                 if (!conv)
 266                         eWarning("failed to create audioconvert");
 267
 268                 flt = gst_element_factory_make ("capsfilter", "flt");
 269                 if (!flt)
 270                         eWarning("failed to create capsfilter");
 271
 272                         /* for some reasons, we need to set the sample format to depth/width=16, because auto negotiation doesn't work. */
 273                         /* endianness, however, is not required to be set anymore. */
 274                 if (flt)
 275                 {
 276                         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);
 277                         g_object_set (G_OBJECT (flt), "caps", caps, (char*)0);
 278                         gst_caps_unref(caps);
 279                 }
 280
 281                 sink = gst_element_factory_make ("alsasink", "alsa-output");
 282                 if (!sink)
 283                         eWarning("failed to create osssink");
 284
 285                 if (source && decoder && conv && sink)
 286                         all_ok = 1;
 287         } else /* is_video */
 288         {
 289                         /* filesrc -> mpegdemux -> | queue_audio -> dvbaudiosink
 290                                                    | queue_video -> dvbvideosink */
 291
 292                 audio = gst_element_factory_make("dvbaudiosink", "audiosink");
 293                 queue_audio = gst_element_factory_make("queue", "queue_audio");
 294
 295                 video = gst_element_factory_make("dvbvideosink", "videosink");
 296                 queue_video = gst_element_factory_make("queue", "queue_video");
 297
 298                 if (is_mpeg_ps)
 299                         videodemux = gst_element_factory_make("flupsdemux", "videodemux");
 300                 else if (is_mpeg_ts)
 301                         videodemux = gst_element_factory_make("flutsdemux", "videodemux");
 302                 else if (is_matroska)
 303                         videodemux = gst_element_factory_make("matroskademux", "videodemux");
 304                 else if (is_avi)
 305                         videodemux = gst_element_factory_make("avidemux", "videodemux");
 306
 307                 if (!videodemux)
 308                 {
 309                         eDebug("fluendo mpegdemux not available, falling back to mpegdemux\n");
 310                         videodemux = gst_element_factory_make("mpegdemux", "videodemux");
 311                 }
 312
 313                 eDebug("audio: %p, queue_audio %p, video %p, queue_video %p, videodemux %p", audio, queue_audio, video, queue_video, videodemux);
 314                 if (audio && queue_audio && video && queue_video && videodemux)
 315                 {
 316                         g_object_set (G_OBJECT (queue_audio), "max-size-bytes", 256*1024, NULL);
 317                         g_object_set (G_OBJECT (queue_audio), "max-size-buffers", 0, NULL);
 318                         g_object_set (G_OBJECT (queue_audio), "max-size-time", (guint64)0, NULL);
 319                         g_object_set (G_OBJECT (queue_video), "max-size-buffers", 0, NULL);
 320                         g_object_set (G_OBJECT (queue_video), "max-size-bytes", 2*1024*1024, NULL);
 321                         g_object_set (G_OBJECT (queue_video), "max-size-time", (guint64)0, NULL);
 322                         all_ok = 1;
 323                 }
 324         }
 325
 326         if (m_gst_pipeline && all_ok)
 327         {
 328                 gst_bus_set_sync_handler(gst_pipeline_get_bus (GST_PIPELINE (m_gst_pipeline)), gstBusSyncHandler, this);
 329
 330                 if (is_AudioCD)
 331                 {
 332                         queue_audio = gst_element_factory_make("queue", "queue_audio");
 333                         g_object_set (G_OBJECT (sink), "preroll-queue-len", 80, NULL);
 334                         gst_bin_add_many (GST_BIN (m_gst_pipeline), source, queue_audio, conv, sink, NULL);
 335                         gst_element_link_many(source, queue_audio, conv, sink, NULL);
 336                 }
 337                 else if (is_audio)
 338                 {
 339                         queue_audio = gst_element_factory_make("queue", "queue_audio");
 340
 341                         if (!is_mp3)
 342                         {
 343                                         /* decodebin has dynamic pads. When they get created, we connect them to the audio bin */
 344                                 g_signal_connect (decoder, "new-decoded-pad", G_CALLBACK(gstCBnewPad), this);
 345                                 g_signal_connect (decoder, "unknown-type", G_CALLBACK(gstCBunknownType), this);
 346                                 g_object_set (G_OBJECT (sink), "preroll-queue-len", 80, NULL);
 347                         }
 348
 349                                 /* gst_bin will take the 'floating references' */
 350                         gst_bin_add_many (GST_BIN (m_gst_pipeline),
 351                                                 source, queue_audio, decoder, NULL);
 352
 353                         if (filter)
 354                         {
 355                                         /* id3demux also has dynamic pads, which need to be connected to the decoder (this is done in the 'gstCBfilterPadAdded' CB) */
 356                                 gst_bin_add(GST_BIN(m_gst_pipeline), filter);
 357                                 gst_element_link(source, filter);
 358                                 g_signal_connect (filter, "pad-added", G_CALLBACK(gstCBfilterPadAdded), this);
 359                         } else
 360                                         /* in decodebin's case we can just connect the source with the decodebin, and decodebin will take care about id3demux (or whatever is required) */
 361                                 gst_element_link_many(source, queue_audio, decoder, NULL);
 362
 363                                 /* create audio bin with the audioconverter, the capsfilter and the audiosink */
 364                         audio = gst_bin_new ("audiobin");
 365
 366                         GstPad *audiopad = gst_element_get_static_pad (conv, "sink");
 367                         gst_bin_add_many(GST_BIN(audio), conv, flt, sink, (char*)0);
 368                         gst_element_link_many(conv, flt, sink, (char*)0);
 369                         gst_element_add_pad(audio, gst_ghost_pad_new ("sink", audiopad));
 370                         gst_object_unref(audiopad);
 371                         gst_bin_add (GST_BIN(m_gst_pipeline), audio);
 372                                 /* in mad's case, we can directly connect the decoder to the audiobin. otherwise, we do this in gstCBnewPad */
 373                         if (is_mp3)
 374                                 gst_element_link(decoder, audio);
 375                         audioStream audioStreamElem;
 376                         m_audioStreams.push_back(audioStreamElem);
 377                 } else /* is_video */
 378                 {
 379                         char srt_filename[strlen(filename)+1];
 380                         strncpy(srt_filename,filename,strlen(filename)-3);
 381                         srt_filename[strlen(filename)-3]='\0';
 382                         strcat(srt_filename, "srt");
 383                         struct stat buffer;
 384                         if (stat(srt_filename, &buffer) == 0)
 385                         {
 386                                 eDebug("subtitle file found: %s",srt_filename);
 387                                 GstElement *subsource;
 388                                 subsource = gst_element_factory_make ("filesrc", "srt_source");
 389                                 g_object_set (G_OBJECT (subsource), "location", filename, NULL);
 390                                 GstElement *parser = gst_element_factory_make("subparse", "srt_parse");
 391                                 eDebug ("subparse = %p", parser);
 392                                 GstElement *sink = gst_element_factory_make("fakesink", "srt_sink");
 393                                 eDebug ("fakesink = %p", sink);
 394                                 g_object_set (G_OBJECT(sink), "signal-handoffs", TRUE, NULL);
 395                                 gst_bin_add_many(GST_BIN (m_gst_pipeline), subsource, parser, sink, NULL);
 396                                 GstPadLinkReturn res = gst_element_link(subsource, parser);
 397                                 eDebug ("parser link = %d", res);
 398                                 res = gst_element_link(parser, sink);
 399                                 eDebug ("sink link = %d", res);
 400                                 g_signal_connect(sink, "handoff", G_CALLBACK(gstCBsubtitleAvail), this);
 401                                 subtitleStream subs;
 402                                 subs.element = sink;
 403                                 m_subtitleStreams.push_back(subs);
 404                         }
 405                         else
 406                                 eDebug("subtitle file not found: %s",srt_filename);
 407
 408                         gst_bin_add_many(GST_BIN(m_gst_pipeline), source, videodemux, audio, queue_audio, video, queue_video, NULL);
 409                         switch_audio = gst_element_factory_make ("input-selector", "switch_audio");
 410                         if (switch_audio)
 411                         {
 412                                 g_object_set (G_OBJECT (switch_audio), "select-all", TRUE, NULL);
 413                                 gst_bin_add(GST_BIN(m_gst_pipeline), switch_audio);
 414                                 gst_element_link(switch_audio, queue_audio);
 415                         }
 416                         gst_element_link(source, videodemux);
 417                         gst_element_link(queue_audio, audio);
 418                         gst_element_link(queue_video, video);
 419                         g_signal_connect(videodemux, "pad-added", G_CALLBACK (gstCBpadAdded), this);
 420                 }
 421         } else
 422         {
 423                 if (m_gst_pipeline)
 424                         gst_object_unref(GST_OBJECT(m_gst_pipeline));
 425                 if (source)
 426                         gst_object_unref(GST_OBJECT(source));
 427                 if (decoder)
 428                         gst_object_unref(GST_OBJECT(decoder));
 429                 if (conv)
 430                         gst_object_unref(GST_OBJECT(conv));
 431                 if (sink)
 432                         gst_object_unref(GST_OBJECT(sink));
 433
 434                 if (audio)
 435                         gst_object_unref(GST_OBJECT(audio));
 436                 if (queue_audio)
 437                         gst_object_unref(GST_OBJECT(queue_audio));
 438                 if (video)
 439                         gst_object_unref(GST_OBJECT(video));
 440                 if (queue_video)
 441                         gst_object_unref(GST_OBJECT(queue_video));
 442                 if (videodemux)
 443                         gst_object_unref(GST_OBJECT(videodemux));
 444                 if (switch_audio)
 445                         gst_object_unref(GST_OBJECT(switch_audio));
 446
 447                 eDebug("sorry, can't play.");
 448                 m_gst_pipeline = 0;
 449         }
 450
 451         gst_element_set_state (m_gst_pipeline, GST_STATE_PLAYING);
 452 }
 453
 454 eServiceMP3::~eServiceMP3()
 455 {
 456         delete m_subtitle_widget;
 457         if (m_state == stRunning)
 458                 stop();
 459
 460         if (m_stream_tags)
 461                 gst_tag_list_free(m_stream_tags);
 462
 463         if (m_gst_pipeline)
 464         {
 465                 gst_object_unref (GST_OBJECT (m_gst_pipeline));
 466                 eDebug("SERVICEMP3 destruct!");
 467         }
 468 }
 469
 470 DEFINE_REF(eServiceMP3);
 471
 472 RESULT eServiceMP3::connectEvent(const Slot2<void,iPlayableService*,int> &event, ePtr<eConnection> &connection)
 473 {
 474         connection = new eConnection((iPlayableService*)this, m_event.connect(event));
 475         return 0;
 476 }
 477
 478 RESULT eServiceMP3::start()
 479 {
 480         assert(m_state == stIdle);
 481
 482         m_state = stRunning;
 483         if (m_gst_pipeline)
 484         {
 485                 eDebug("starting pipeline");
 486                 gst_element_set_state (m_gst_pipeline, GST_STATE_PLAYING);
 487         }
 488         m_event(this, evStart);
 489         return 0;
 490 }
 491
 492 RESULT eServiceMP3::stop()
 493 {
 494         assert(m_state != stIdle);
 495         if (m_state == stStopped)
 496                 return -1;
 497         eDebug("MP3: %s stop\n", m_filename.c_str());
 498         gst_element_set_state(m_gst_pipeline, GST_STATE_NULL);
 499         m_state = stStopped;
 500         return 0;
 501 }
 502
 503 RESULT eServiceMP3::setTarget(int target)
 504 {
 505         return -1;
 506 }
 507
 508 RESULT eServiceMP3::pause(ePtr<iPauseableService> &ptr)
 509 {
 510         ptr=this;
 511         return 0;
 512 }
 513
 514 RESULT eServiceMP3::setSlowMotion(int ratio)
 515 {
 516         /* we can't do slomo yet */
 517         return -1;
 518 }
 519
 520 RESULT eServiceMP3::setFastForward(int ratio)
 521 {
 522         m_currentTrickRatio = ratio;
 523         if (ratio)
 524                 m_seekTimeout.start(1000, 0);
 525         else
 526                 m_seekTimeout.stop();
 527         return 0;
 528 }
 529
 530 void eServiceMP3::seekTimeoutCB()
 531 {
 532         pts_t ppos, len;
 533         getPlayPosition(ppos);
 534         getLength(len);
 535         ppos += 90000*m_currentTrickRatio;
 536
 537         if (ppos < 0)
 538         {
 539                 ppos = 0;
 540                 m_seekTimeout.stop();
 541         }
 542         if (ppos > len)
 543         {
 544                 ppos = 0;
 545                 stop();
 546                 m_seekTimeout.stop();
 547                 return;
 548         }
 549         seekTo(ppos);
 550 }
 551
 552                 // iPausableService
 553 RESULT eServiceMP3::pause()
 554 {
 555         if (!m_gst_pipeline)
 556                 return -1;
 557         GstStateChangeReturn res = gst_element_set_state(m_gst_pipeline, GST_STATE_PAUSED);
 558         if (res == GST_STATE_CHANGE_ASYNC)
 559         {
 560                 pts_t ppos;
 561                 getPlayPosition(ppos);
 562                 seekTo(ppos);
 563         }
 564         return 0;
 565 }
 566
 567 RESULT eServiceMP3::unpause()
 568 {
 569         if (!m_gst_pipeline)
 570                 return -1;
 571
 572         GstStateChangeReturn res;
 573         res = gst_element_set_state(m_gst_pipeline, GST_STATE_PLAYING);
 574         return 0;
 575 }
 576
 577         /* iSeekableService */
 578 RESULT eServiceMP3::seek(ePtr<iSeekableService> &ptr)
 579 {
 580         ptr = this;
 581         return 0;
 582 }
 583
 584 RESULT eServiceMP3::getLength(pts_t &pts)
 585 {
 586         if (!m_gst_pipeline)
 587                 return -1;
 588         if (m_state != stRunning)
 589                 return -1;
 590
 591         GstFormat fmt = GST_FORMAT_TIME;
 592         gint64 len;
 593
 594         if (!gst_element_query_duration(m_gst_pipeline, &fmt, &len))
 595                 return -1;
 596
 597                 /* len is in nanoseconds. we have 90 000 pts per second. */
 598
 599         pts = len / 11111;
 600         return 0;
 601 }
 602
 603 RESULT eServiceMP3::seekTo(pts_t to)
 604 {
 605         if (!m_gst_pipeline)
 606                 return -1;
 607
 608                 /* convert pts to nanoseconds */
 609         gint64 time_nanoseconds = to * 11111LL;
 610         if (!gst_element_seek (m_gst_pipeline, 1.0, GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH,
 611                 GST_SEEK_TYPE_SET, time_nanoseconds,
 612                 GST_SEEK_TYPE_NONE, GST_CLOCK_TIME_NONE))
 613         {
 614                 eDebug("SEEK failed");
 615                 return -1;
 616         }
 617         return 0;
 618 }
 619
 620 RESULT eServiceMP3::seekRelative(int direction, pts_t to)
 621 {
 622         if (!m_gst_pipeline)
 623                 return -1;
 624
 625         pts_t ppos;
 626         getPlayPosition(ppos);
 627         ppos += to * direction;
 628         if (ppos < 0)
 629                 ppos = 0;
 630         seekTo(ppos);
 631
 632         return 0;
 633 }
 634
 635 RESULT eServiceMP3::getPlayPosition(pts_t &pts)
 636 {
 637         if (!m_gst_pipeline)
 638                 return -1;
 639         if (m_state != stRunning)
 640                 return -1;
 641
 642         GstFormat fmt = GST_FORMAT_TIME;
 643         gint64 len;
 644
 645         if (!gst_element_query_position(m_gst_pipeline, &fmt, &len))
 646                 return -1;
 647
 648                 /* len is in nanoseconds. we have 90 000 pts per second. */
 649         pts = len / 11111;
 650         return 0;
 651 }
 652
 653 RESULT eServiceMP3::setTrickmode(int trick)
 654 {
 655                 /* trickmode is not yet supported by our dvbmediasinks. */
 656         return -1;
 657 }
 658
 659 RESULT eServiceMP3::isCurrentlySeekable()
 660 {
 661         return 1;
 662 }
 663
 664 RESULT eServiceMP3::info(ePtr<iServiceInformation>&i)
 665 {
 666         i = this;
 667         return 0;
 668 }
 669
 670 RESULT eServiceMP3::getName(std::string &name)
 671 {
 672         name = m_filename;
 673         size_t n = name.rfind('/');
 674         if (n != std::string::npos)
 675                 name = name.substr(n + 1);
 676         return 0;
 677 }
 678
 679 int eServiceMP3::getInfo(int w)
 680 {
 681         gchar *tag = 0;
 682
 683         switch (w)
 684         {
 685         case sTitle:
 686         case sArtist:
 687         case sAlbum:
 688         case sComment:
 689         case sTracknumber:
 690         case sGenre:
 691         case sVideoType:
 692                 return resIsString;
 693         case sCurrentTitle:
 694                 tag = GST_TAG_TRACK_NUMBER;
 695                 break;
 696         case sTotalTitles:
 697                 tag = GST_TAG_TRACK_COUNT;
 698                 break;
 699         default:
 700                 return resNA;
 701         }
 702
 703         if (!m_stream_tags || !tag)
 704                 return 0;
 705
 706         guint value;
 707         if (gst_tag_list_get_uint(m_stream_tags, tag, &value))
 708                 return (int) value;
 709
 710         return 0;
 711
 712 }
 713
 714 std::string eServiceMP3::getInfoString(int w)
 715 {
 716         gchar *tag = 0;
 717         switch (w)
 718         {
 719         case sTitle:
 720                 tag = GST_TAG_TITLE;
 721                 break;
 722         case sArtist:
 723                 tag = GST_TAG_ARTIST;
 724                 break;
 725         case sAlbum:
 726                 tag = GST_TAG_ALBUM;
 727                 break;
 728         case sComment:
 729                 tag = GST_TAG_COMMENT;
 730                 break;
 731         case sTracknumber:
 732                 tag = GST_TAG_TRACK_NUMBER;
 733                 break;
 734         case sGenre:
 735                 tag = GST_TAG_GENRE;
 736                 break;
 737         case sVideoType:
 738                 tag = GST_TAG_VIDEO_CODEC;
 739                 break;
 740         default:
 741                 return "";
 742         }
 743
 744         if (!m_stream_tags || !tag)
 745                 return "";
 746
 747         gchar *value;
 748
 749         if (gst_tag_list_get_string(m_stream_tags, tag, &value))
 750         {
 751                 std::string res = value;
 752                 g_free(value);
 753                 return res;
 754         }
 755
 756         return "";
 757 }
 758
 759 RESULT eServiceMP3::audioChannel(ePtr<iAudioChannelSelection> &ptr)
 760 {
 761         ptr = this;
 762         return 0;
 763 }
 764
 765 RESULT eServiceMP3::audioTracks(ePtr<iAudioTrackSelection> &ptr)
 766 {
 767         ptr = this;
 768         return 0;
 769 }
 770
 771 RESULT eServiceMP3::subtitle(ePtr<iSubtitleOutput> &ptr)
 772 {
 773         ptr = this;
 774         return 0;
 775 }
 776
 777 int eServiceMP3::getNumberOfTracks()
 778 {
 779         return m_audioStreams.size();
 780 }
 781
 782 int eServiceMP3::getCurrentTrack()
 783 {
 784         return m_currentAudioStream;
 785 }
 786
 787 RESULT eServiceMP3::selectTrack(unsigned int i)
 788 {
 789         int ret = selectAudioStream(i);
 790         /* flush */
 791         pts_t ppos;
 792         getPlayPosition(ppos);
 793         seekTo(ppos);
 794
 795         return ret;
 796 }
 797
 798 int eServiceMP3::selectAudioStream(int i)
 799 {
 800         gint nb_sources;
 801         GstPad *active_pad;
 802         GstElement *selector = gst_bin_get_by_name(GST_BIN(m_gst_pipeline),"switch_audio");
 803         if ( !selector)
 804         {
 805                 eDebug("can't switch audio tracks! gst-plugin-selector needed");
 806                 return -1;
 807         }
 808         g_object_get (G_OBJECT (selector), "n-pads", &nb_sources, NULL);
 809         if ( i >= m_audioStreams.size() || i >= nb_sources || m_currentAudioStream >= m_audioStreams.size() )
 810                 return -2;
 811         char sinkpad[8];
 812         sprintf(sinkpad, "sink%d", i);
 813         g_object_set (G_OBJECT (selector), "active-pad", gst_element_get_pad (selector, sinkpad), NULL);
 814         g_object_get (G_OBJECT (selector), "active-pad", &active_pad, NULL);
 815         gchar *name;
 816         name = gst_pad_get_name (active_pad);
 817         eDebug ("switched audio to (%s)", name);
 818         g_free(name);
 819         m_currentAudioStream = i;
 820         return 0;
 821 }
 822
 823 int eServiceMP3::getCurrentChannel()
 824 {
 825         return STEREO;
 826 }
 827
 828 RESULT eServiceMP3::selectChannel(int i)
 829 {
 830         eDebug("eServiceMP3::selectChannel(%i)",i);
 831         return 0;
 832 }
 833
 834 RESULT eServiceMP3::getTrackInfo(struct iAudioTrackInfo &info, unsigned int i)
 835 {
 836 //      eDebug("eServiceMP3::getTrackInfo(&info, %i)",i);
 837         if (i >= m_audioStreams.size())
 838                 return -2;
 839         if (m_audioStreams[i].type == audioStream::atMP2)
 840                 info.m_description = "MP2";
 841         else if (m_audioStreams[i].type == audioStream::atMP3)
 842                 info.m_description = "MP3";
 843         else if (m_audioStreams[i].type == audioStream::atAC3)
 844                 info.m_description = "AC3";
 845         else if (m_audioStreams[i].type == audioStream::atAAC)
 846                 info.m_description = "AAC";
 847         else if (m_audioStreams[i].type == audioStream::atDTS)
 848                 info.m_description = "DTS";
 849         else if (m_audioStreams[i].type == audioStream::atPCM)
 850                 info.m_description = "PCM";
 851         else if (m_audioStreams[i].type == audioStream::atOGG)
 852                 info.m_description = "OGG";
 853         else
 854                 info.m_description = "???";
 855         if (info.m_language.empty())
 856                 info.m_language = m_audioStreams[i].language_code;
 857         return 0;
 858 }
 859
 860 void eServiceMP3::gstBusCall(GstBus *bus, GstMessage *msg)
 861 {
 862         if (!msg)
 863                 return;
 864         gchar *sourceName;
 865         GstObject *source;
 866
 867         source = GST_MESSAGE_SRC(msg);
 868         sourceName = gst_object_get_name(source);
 869
 870         if (gst_message_get_structure(msg))
 871         {
 872                 gchar *string = gst_structure_to_string(gst_message_get_structure(msg));
 873                 eDebug("gst_message from %s: %s", sourceName, string);
 874                 g_free(string);
 875         }
 876         else
 877                 eDebug("gst_message from %s: %s (without structure)", sourceName, GST_MESSAGE_TYPE_NAME(msg));
 878
 879         switch (GST_MESSAGE_TYPE (msg))
 880         {
 881         case GST_MESSAGE_EOS:
 882                 m_event((iPlayableService*)this, evEOF);
 883                 break;
 884         case GST_MESSAGE_ERROR:
 885         {
 886                 gchar *debug;
 887                 GError *err;
 888
 889                 gst_message_parse_error (msg, &err, &debug);
 890                 g_free (debug);
 891                 eWarning("Gstreamer error: %s (%i)", err->message, err->code );
 892                 if ( err->domain == GST_STREAM_ERROR && err->code == GST_STREAM_ERROR_DECODE )
 893                 {
 894                         if ( g_strrstr(sourceName, "videosink") )
 895                                 m_event((iPlayableService*)this, evUser+11);
 896                 }
 897                 g_error_free(err);
 898                         /* TODO: signal error condition to user */
 899                 break;
 900         }
 901         case GST_MESSAGE_TAG:
 902         {
 903                 GstTagList *tags, *result;
 904                 gst_message_parse_tag(msg, &tags);
 905
 906                 result = gst_tag_list_merge(m_stream_tags, tags, GST_TAG_MERGE_PREPEND);
 907                 if (result)
 908                 {
 909                         if (m_stream_tags)
 910                                 gst_tag_list_free(m_stream_tags);
 911                         m_stream_tags = result;
 912                 }
 913                 gchar *g_audiocodec;
 914                 if (gst_tag_list_get_string(tags, GST_TAG_AUDIO_CODEC, &g_audiocodec) && m_audioStreams.size())
 915                 {
 916                         std::vector<audioStream>::iterator IterAudioStream = m_audioStreams.begin();
 917                         while ( IterAudioStream->language_code.length() && IterAudioStream != m_audioStreams.end())
 918                                 IterAudioStream++;
 919                         if ( g_strrstr(g_audiocodec, "MPEG-1 layer 2") )
 920                                 IterAudioStream->type = audioStream::atMP2;
 921                         else if ( g_strrstr(g_audiocodec, "MPEG-1 layer 3") )
 922                                 IterAudioStream->type = audioStream::atMP3;
 923                         else if ( g_strrstr(g_audiocodec, "AC-3 audio") )
 924                                 IterAudioStream->type = audioStream::atAC3;
 925                         else if ( g_strrstr(g_audiocodec, "Uncompressed 16-bit PCM audio") )
 926                                 IterAudioStream->type = audioStream::atPCM;
 927                         gchar *g_language;
 928                         if ( gst_tag_list_get_string(tags, GST_TAG_LANGUAGE_CODE, &g_language) )
 929                                 IterAudioStream->language_code = std::string(g_language);
 930                         g_free (g_language);
 931                         g_free (g_audiocodec);
 932                 }
 933                 break;
 934         }
 935         default:
 936                 break;
 937         }
 938         g_free (sourceName);
 939 }
 940
 941 GstBusSyncReply eServiceMP3::gstBusSyncHandler(GstBus *bus, GstMessage *message, gpointer user_data)
 942 {
 943         eServiceMP3 *_this = (eServiceMP3*)user_data;
 944         _this->m_pump.send(1);
 945                 /* wake */
 946         return GST_BUS_PASS;
 947 }
 948
 949 void eServiceMP3::gstCBpadAdded(GstElement *decodebin, GstPad *pad, gpointer user_data)
 950 {
 951         eServiceMP3 *_this = (eServiceMP3*)user_data;
 952         GstBin *pipeline = GST_BIN(_this->m_gst_pipeline);
 953         gchar *name;
 954         name = gst_pad_get_name (pad);
 955         eDebug ("A new pad %s was created", name);
 956         if (g_strrstr(name,"audio")) // mpegdemux, matroskademux, avidemux use video_nn with n=0,1,.., flupsdemux uses stream id
 957         {
 958                 GstElement *selector = gst_bin_get_by_name(pipeline , "switch_audio" );
 959                 audioStream audio;
 960                 audio.pad = pad;
 961                 _this->m_audioStreams.push_back(audio);
 962                 if ( selector )
 963                 {
 964                         gst_pad_link(pad, gst_element_get_request_pad (selector, "sink%d"));
 965                         if ( _this->m_audioStreams.size() == 1 )
 966                         {
 967                                 _this->selectAudioStream(0);
 968                                 gst_element_set_state (_this->m_gst_pipeline, GST_STATE_PLAYING);
 969                         }
 970                         else
 971                                 g_object_set (G_OBJECT (selector), "select-all", FALSE, NULL);
 972                 }
 973                 else
 974                         gst_pad_link(pad, gst_element_get_static_pad(gst_bin_get_by_name(pipeline,"queue_audio"), "sink"));
 975         }
 976         if (g_strrstr(name,"video"))
 977         {
 978                 gst_pad_link(pad, gst_element_get_static_pad(gst_bin_get_by_name(pipeline,"queue_video"), "sink"));
 979         }
 980         if (g_strrstr(name,"subtitle"))
 981         {
 982 //              GstCaps *caps;
 983 //              const GstStructure *structure;
 984 //              caps = gst_pad_get_caps(name);
 985 //              structure = gst_caps_get_structure(caps, 0);
 986                 char elemname[17];
 987                 sprintf(elemname, "%s_pars", name);
 988                 GstElement *parser = gst_element_factory_make("ssaparse", elemname);
 989                 eDebug ("ssaparse %s = %p", elemname, parser);
 990                 sprintf(elemname, "%s_sink", name);
 991                 GstElement *sink = gst_element_factory_make("fakesink", elemname);
 992                 eDebug ("fakesink %s = %p", elemname, sink);
 993                 g_object_set (G_OBJECT(sink), "signal-handoffs", TRUE, NULL);
 994                 gst_bin_add_many(pipeline, parser, sink, NULL);
 995                 GstPadLinkReturn res = gst_pad_link(pad, gst_element_get_static_pad(parser, "sink"));
 996                 eDebug ("parser link = %d", res);
 997                 res = gst_element_link(parser, sink);
 998                 eDebug ("sink link = %d", res);
 999                 g_signal_connect(sink, "handoff", G_CALLBACK(gstCBsubtitleAvail), _this);
1000                 subtitleStream subs;
1001                 subs.element = sink;
1002                 _this->m_subtitleStreams.push_back(subs);
1003         }
1004         g_free (name);
1005 }
1006
1007 void eServiceMP3::gstCBfilterPadAdded(GstElement *filter, GstPad *pad, gpointer user_data)
1008 {
1009         eServiceMP3 *_this = (eServiceMP3*)user_data;
1010         GstElement *decoder = gst_bin_get_by_name(GST_BIN(_this->m_gst_pipeline),"decoder");
1011         gst_pad_link(pad, gst_element_get_static_pad (decoder, "sink"));
1012 }
1013
1014 void eServiceMP3::gstCBnewPad(GstElement *decodebin, GstPad *pad, gboolean last, gpointer user_data)
1015 {
1016         eServiceMP3 *_this = (eServiceMP3*)user_data;
1017         GstCaps *caps;
1018         GstStructure *str;
1019         GstPad *audiopad;
1020
1021         /* only link once */
1022         GstElement *audio = gst_bin_get_by_name(GST_BIN(_this->m_gst_pipeline),"audiobin");
1023         audiopad = gst_element_get_static_pad (audio, "sink");
1024         if ( !audiopad || GST_PAD_IS_LINKED (audiopad)) {
1025                 eDebug("audio already linked!");
1026                 g_object_unref (audiopad);
1027                 return;
1028         }
1029
1030         /* check media type */
1031         caps = gst_pad_get_caps (pad);
1032         str = gst_caps_get_structure (caps, 0);
1033         eDebug("gst new pad! %s", gst_structure_get_name (str));
1034
1035         if (!g_strrstr (gst_structure_get_name (str), "audio")) {
1036                 gst_caps_unref (caps);
1037                 gst_object_unref (audiopad);
1038                 return;
1039         }
1040
1041         gst_caps_unref (caps);
1042         gst_pad_link (pad, audiopad);
1043 }
1044
1045 void eServiceMP3::gstCBunknownType(GstElement *decodebin, GstPad *pad, GstCaps *caps, gpointer user_data)
1046 {
1047         GstStructure *str;
1048
1049         /* check media type */
1050         caps = gst_pad_get_caps (pad);
1051         str = gst_caps_get_structure (caps, 0);
1052         eDebug("unknown type: %s - this can't be decoded.", gst_structure_get_name (str));
1053         gst_caps_unref (caps);
1054 }
1055
1056 void eServiceMP3::gstPoll(const int&)
1057 {
1058                 /* ok, we have a serious problem here. gstBusSyncHandler sends
1059                    us the wakup signal, but likely before it was posted.
1060                    the usleep, an EVIL HACK (DON'T DO THAT!!!) works around this.
1061
1062                    I need to understand the API a bit more to make this work
1063                    proplerly. */
1064         usleep(1);
1065
1066         GstBus *bus = gst_pipeline_get_bus (GST_PIPELINE (m_gst_pipeline));
1067         GstMessage *message;
1068         while ((message = gst_bus_pop (bus)))
1069         {
1070                 gstBusCall(bus, message);
1071                 gst_message_unref (message);
1072         }
1073 }
1074
1075 eAutoInitPtr<eServiceFactoryMP3> init_eServiceFactoryMP3(eAutoInitNumbers::service+1, "eServiceFactoryMP3");
1076 #else
1077 #warning gstreamer not available, not building media player
1078 #endif
1079
1080 void eServiceMP3::gstCBsubtitleAvail(GstElement *element, GstBuffer *buffer, GstPad *pad, gpointer user_data)
1081 {
1082         const char *text = (unsigned char *)GST_BUFFER_DATA(buffer);
1083         eServiceMP3 *_this = (eServiceMP3*)user_data;
1084         gchar *sourceName;
1085         sourceName = gst_object_get_name(GST_OBJECT(element));
1086         if ( _this->m_subtitle_widget && _this->m_subtitleStreams.at(_this->m_currentSubtitleStream).element == element)
1087         {
1088                 eDVBTeletextSubtitlePage page;
1089                 gRGB rgbcol(0xD0,0xD0,0xD0);
1090                 page.m_elements.push_back(eDVBTeletextSubtitlePageElement(rgbcol, text));
1091                 (_this->m_subtitle_widget)->setPage(page);
1092         }
1093         else
1094                 eDebug("on inactive element: %s (%p) saw subtitle: %s",sourceName, element, text);
1095         return TRUE;
1096 }
1097
1098 RESULT eServiceMP3::enableSubtitles(eWidget *parent, ePyObject tuple)
1099 {
1100         eDebug("eServiceMP3::enableSubtitles");
1101
1102         ePyObject entry;
1103         int tuplesize = PyTuple_Size(tuple);
1104         int type = 0;
1105         int page, magazine, pid;
1106
1107         if (!PyTuple_Check(tuple))
1108                 goto error_out;
1109
1110         if (tuplesize < 1)
1111                 goto error_out;
1112
1113         entry = PyTuple_GET_ITEM(tuple, 0);
1114
1115         if (!PyInt_Check(entry))
1116                 goto error_out;
1117
1118         type = PyInt_AsLong(entry);
1119
1120         entry = PyTuple_GET_ITEM(tuple, 1);
1121         if (!PyInt_Check(entry))
1122                 goto error_out;
1123         pid = PyInt_AsLong(entry);
1124
1125         m_subtitle_widget = new eSubtitleWidget(parent);
1126         m_subtitle_widget->resize(parent->size()); /* full size */
1127         m_currentSubtitleStream = pid;
1128
1129         return 0;
1130 error_out:
1131         eDebug("enableSubtitles needs a tuple as 2nd argument!\n"
1132                 "for gst subtitles (2, subtitle_stream_count)");
1133         return -1;
1134 }
1135
1136 RESULT eServiceMP3::disableSubtitles(eWidget *parent)
1137 {
1138         eDebug("eServiceMP3::disableSubtitles");
1139         delete m_subtitle_widget;
1140         m_subtitle_widget = 0;
1141         return 0;
1142 }
1143
1144 PyObject *eServiceMP3::getCachedSubtitle()
1145 {
1146         eDebug("eServiceMP3::eDVBServicePlay");
1147         Py_RETURN_NONE;
1148 }
1149
1150 PyObject *eServiceMP3::getSubtitleList()
1151 {
1152         eDebug("eServiceMP3::getSubtitleList");
1153
1154         ePyObject l = PyList_New(0);
1155         gchar *sourceName;
1156         int stream_count = 0;
1157
1158         for (std::vector<subtitleStream>::iterator IterSubtitleStream(m_subtitleStreams.begin()); IterSubtitleStream != m_subtitleStreams.end(); ++IterSubtitleStream)
1159         {
1160                 ePyObject tuple = PyTuple_New(5);
1161                 PyTuple_SET_ITEM(tuple, 0, PyInt_FromLong(2));
1162                 PyTuple_SET_ITEM(tuple, 1, PyInt_FromLong(stream_count));
1163                 PyTuple_SET_ITEM(tuple, 2, PyInt_FromLong(0));
1164                 PyTuple_SET_ITEM(tuple, 3, PyInt_FromLong(0));
1165                 sourceName = gst_object_get_name(GST_OBJECT (IterSubtitleStream->element));
1166                 PyTuple_SET_ITEM(tuple, 4, PyString_FromString(sourceName));
1167                 PyList_Append(l, tuple);
1168                 Py_DECREF(tuple);
1169                 stream_count++;
1170         }
1171
1172         return l;
1173 }