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