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/base/init_num.h>
  12 #include <lib/base/init.h>
  13 #include <gst/gst.h>
  14
  15 // eServiceFactoryMP3
  16
  17 eServiceFactoryMP3::eServiceFactoryMP3()
  18 {
  19         ePtr<eServiceCenter> sc;
  20
  21         eServiceCenter::getPrivInstance(sc);
  22         if (sc)
  23                 sc->addServiceFactory(eServiceFactoryMP3::id, this);
  24
  25         m_service_info = new eStaticServiceMP3Info();
  26 }
  27
  28 eServiceFactoryMP3::~eServiceFactoryMP3()
  29 {
  30         ePtr<eServiceCenter> sc;
  31
  32         eServiceCenter::getPrivInstance(sc);
  33         if (sc)
  34                 sc->removeServiceFactory(eServiceFactoryMP3::id);
  35 }
  36
  37 DEFINE_REF(eServiceFactoryMP3)
  38
  39         // iServiceHandler
  40 RESULT eServiceFactoryMP3::play(const eServiceReference &ref, ePtr<iPlayableService> &ptr)
  41 {
  42                 // check resources...
  43         ptr = new eServiceMP3(ref.path.c_str());
  44         return 0;
  45 }
  46
  47 RESULT eServiceFactoryMP3::record(const eServiceReference &ref, ePtr<iRecordableService> &ptr)
  48 {
  49         ptr=0;
  50         return -1;
  51 }
  52
  53 RESULT eServiceFactoryMP3::list(const eServiceReference &, ePtr<iListableService> &ptr)
  54 {
  55         ptr=0;
  56         return -1;
  57 }
  58
  59 RESULT eServiceFactoryMP3::info(const eServiceReference &ref, ePtr<iStaticServiceInformation> &ptr)
  60 {
  61         ptr = m_service_info;
  62         return 0;
  63 }
  64
  65 RESULT eServiceFactoryMP3::offlineOperations(const eServiceReference &, ePtr<iServiceOfflineOperations> &ptr)
  66 {
  67         ptr = 0;
  68         return -1;
  69 }
  70
  71
  72 // eStaticServiceMP3Info
  73
  74
  75 // eStaticServiceMP3Info is seperated from eServiceMP3 to give information
  76 // about unopened files.
  77
  78 // probably eServiceMP3 should use this class as well, and eStaticServiceMP3Info
  79 // should have a database backend where ID3-files etc. are cached.
  80 // this would allow listing the mp3 database based on certain filters.
  81
  82 DEFINE_REF(eStaticServiceMP3Info)
  83
  84 eStaticServiceMP3Info::eStaticServiceMP3Info()
  85 {
  86 }
  87
  88 RESULT eStaticServiceMP3Info::getName(const eServiceReference &ref, std::string &name)
  89 {
  90         size_t last = ref.path.rfind('/');
  91         if (last != std::string::npos)
  92                 name = ref.path.substr(last+1);
  93         else
  94                 name = ref.path;
  95         return 0;
  96 }
  97
  98 int eStaticServiceMP3Info::getLength(const eServiceReference &ref)
  99 {
 100         return -1;
 101 }
 102
 103 // eServiceMP3
 104
 105 eServiceMP3::eServiceMP3(const char *filename): m_filename(filename), m_pump(eApp, 1)
 106 {
 107         m_stream_tags = 0;
 108         CONNECT(m_pump.recv_msg, eServiceMP3::gstPoll);
 109         GstElement *source = 0;
 110
 111         GstElement *decoder = 0, *conv = 0, *flt = 0, *sink = 0; /* for audio */
 112
 113         GstElement *audio = 0, *queue_audio = 0, *video = 0, *queue_video = 0, *mpegdemux = 0;
 114
 115         m_state = stIdle;
 116         eDebug("SERVICEMP3 construct!");
 117
 118                 /* FIXME: currently, decodebin isn't possible for
 119                    video streams. in that case, make a manual pipeline. */
 120
 121         const char *ext = strrchr(filename, '.');
 122         if (!ext)
 123                 ext = filename;
 124
 125         int is_mpeg_ps = !(strcasecmp(ext, ".mpeg") && strcasecmp(ext, ".mpg") && strcasecmp(ext, ".vob") && strcasecmp(ext, ".bin"));
 126         int is_mpeg_ts = !strcasecmp(ext, ".ts");
 127         int is_video = is_mpeg_ps || is_mpeg_ts;
 128         int is_streaming = !strncmp(filename, "http://", 7);
 129
 130         eDebug("filename: %s, is_mpeg_ps: %d, is_mpeg_ts: %d, is_video: %d, is_streaming: %d", filename, is_mpeg_ps, is_mpeg_ts, is_video, is_streaming);
 131
 132         int use_decodebin = !is_video;
 133
 134         int all_ok = 0;
 135
 136         m_gst_pipeline = gst_pipeline_new ("audio-player");
 137         if (!m_gst_pipeline)
 138                 eWarning("failed to create pipeline");
 139
 140         if (!is_streaming)
 141                 source = gst_element_factory_make ("filesrc", "file-source");
 142         else
 143         {
 144                 source = gst_element_factory_make ("neonhttpsrc", "http-source");
 145                 if (source)
 146                         g_object_set (G_OBJECT (source), "automatic-redirect", TRUE, NULL);
 147         }
 148
 149         if (!source)
 150                 eWarning("failed to create %s", is_streaming ? "neonhttpsrc" : "filesrc");
 151         else
 152                                 /* configure source */
 153                 g_object_set (G_OBJECT (source), "location", filename, NULL);
 154
 155         if (use_decodebin)
 156         {
 157                         /* filesrc -> decodebin -> audioconvert -> capsfilter -> alsasink */
 158
 159                 decoder = gst_element_factory_make ("decodebin", "decoder");
 160                 if (!decoder)
 161                         eWarning("failed to create decodebin decoder");
 162
 163                 conv = gst_element_factory_make ("audioconvert", "converter");
 164                 if (!conv)
 165                         eWarning("failed to create audioconvert");
 166
 167                 flt = gst_element_factory_make ("capsfilter", "flt");
 168                 if (!flt)
 169                         eWarning("failed to create capsfilter");
 170
 171                         /* for some reasons, we need to set the sample format to depth/width=16, because auto negotiation doesn't work. */
 172                         /* endianness, however, is not required to be set anymore. */
 173                 if (flt)
 174                 {
 175                         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);
 176                         g_object_set (G_OBJECT (flt), "caps", caps, (char*)0);
 177                         gst_caps_unref(caps);
 178                 }
 179
 180                 sink = gst_element_factory_make ("alsasink", "alsa-output");
 181                 if (!sink)
 182                         eWarning("failed to create osssink");
 183
 184                 if (source && decoder && conv && sink)
 185                         all_ok = 1;
 186         } else /* is_video */
 187         {
 188                         /* filesrc -> mpegdemux -> | queue_audio -> dvbaudiosink
 189                                                    | queue_video -> dvbvideosink */
 190
 191                 audio = gst_element_factory_make("dvbaudiosink", "audio");
 192                 queue_audio = gst_element_factory_make("queue", "queue_audio");
 193
 194                 video = gst_element_factory_make("dvbvideosink", "video");
 195                 queue_video = gst_element_factory_make("queue", "queue_video");
 196
 197                 if (is_mpeg_ps)
 198                         mpegdemux = gst_element_factory_make("flupsdemux", "mpegdemux");
 199                 else
 200                         mpegdemux = gst_element_factory_make("flutsdemux", "mpegdemux");
 201
 202                 if (!mpegdemux)
 203                 {
 204                         eDebug("fluendo mpegdemux not available, falling back to mpegdemux\n");
 205                         mpegdemux = gst_element_factory_make("mpegdemux", "mpegdemux");
 206                 }
 207
 208                 eDebug("audio: %p, queue_audio %p, video %p, queue_video %p, mpegdemux %p", audio, queue_audio, video, queue_video, mpegdemux);
 209                 if (audio && queue_audio && video && queue_video && mpegdemux)
 210                 {
 211                         g_object_set (G_OBJECT (queue_audio), "max-size-buffers", 0, NULL);
 212                         g_object_set (G_OBJECT (queue_audio), "max-size-time", (guint64)0, NULL);
 213                         g_object_set (G_OBJECT (queue_video), "max-size-buffers", 0, NULL);
 214                         g_object_set (G_OBJECT (queue_video), "max-size-time", (guint64)0, NULL);
 215                         all_ok = 1;
 216                 }
 217         }
 218
 219         if (m_gst_pipeline && all_ok)
 220         {
 221                 gst_bus_set_sync_handler(gst_pipeline_get_bus (GST_PIPELINE (m_gst_pipeline)), gstBusSyncHandler, this);
 222
 223                 if (use_decodebin)
 224                 {
 225                         g_signal_connect (decoder, "new-decoded-pad", G_CALLBACK(gstCBnewPad), this);
 226                         g_signal_connect (decoder, "unknown-type", G_CALLBACK(gstCBunknownType), this);
 227
 228                                 /* gst_bin will take the 'floating references' */
 229                         gst_bin_add_many (GST_BIN (m_gst_pipeline),
 230                                                 source, decoder, NULL);
 231                         gst_element_link(source, decoder);
 232
 233                         /* create audio bin */
 234                         m_gst_audio = gst_bin_new ("audiobin");
 235                         GstPad *audiopad = gst_element_get_pad (conv, "sink");
 236
 237                         gst_bin_add_many(GST_BIN(m_gst_audio), conv, flt, sink, (char*)0);
 238                         gst_element_link_many(conv, flt, sink, (char*)0);
 239                         gst_element_add_pad(m_gst_audio, gst_ghost_pad_new ("sink", audiopad));
 240                         gst_object_unref(audiopad);
 241                         gst_bin_add (GST_BIN(m_gst_pipeline), m_gst_audio);
 242                 } else
 243                 {
 244                         gst_bin_add_many(GST_BIN(m_gst_pipeline), source, mpegdemux, audio, queue_audio, video, queue_video, NULL);
 245                         gst_element_link(source, mpegdemux);
 246                         gst_element_link(queue_audio, audio);
 247                         gst_element_link(queue_video, video);
 248
 249                         m_gst_audioqueue = queue_audio;
 250                         m_gst_videoqueue = queue_video;
 251
 252                         g_signal_connect(mpegdemux, "pad-added", G_CALLBACK (gstCBpadAdded), this);
 253                 }
 254         } else
 255         {
 256                 if (m_gst_pipeline)
 257                         gst_object_unref(GST_OBJECT(m_gst_pipeline));
 258                 if (source)
 259                         gst_object_unref(GST_OBJECT(source));
 260                 if (decoder)
 261                         gst_object_unref(GST_OBJECT(decoder));
 262                 if (conv)
 263                         gst_object_unref(GST_OBJECT(conv));
 264                 if (sink)
 265                         gst_object_unref(GST_OBJECT(sink));
 266
 267                 if (audio)
 268                         gst_object_unref(GST_OBJECT(audio));
 269                 if (queue_audio)
 270                         gst_object_unref(GST_OBJECT(queue_audio));
 271                 if (video)
 272                         gst_object_unref(GST_OBJECT(video));
 273                 if (queue_video)
 274                         gst_object_unref(GST_OBJECT(queue_video));
 275                 if (mpegdemux)
 276                         gst_object_unref(GST_OBJECT(mpegdemux));
 277
 278                 eDebug("sorry, can't play.");
 279                 m_gst_pipeline = 0;
 280         }
 281
 282         gst_element_set_state (m_gst_pipeline, GST_STATE_PLAYING);
 283 }
 284
 285 eServiceMP3::~eServiceMP3()
 286 {
 287         if (m_state == stRunning)
 288                 stop();
 289
 290         if (m_stream_tags)
 291                 gst_tag_list_free(m_stream_tags);
 292
 293         if (m_gst_pipeline)
 294         {
 295                 gst_object_unref (GST_OBJECT (m_gst_pipeline));
 296                 eDebug("SERVICEMP3 destruct!");
 297         }
 298 }
 299
 300 DEFINE_REF(eServiceMP3);
 301
 302 RESULT eServiceMP3::connectEvent(const Slot2<void,iPlayableService*,int> &event, ePtr<eConnection> &connection)
 303 {
 304         connection = new eConnection((iPlayableService*)this, m_event.connect(event));
 305         return 0;
 306 }
 307
 308 RESULT eServiceMP3::start()
 309 {
 310         assert(m_state == stIdle);
 311
 312         m_state = stRunning;
 313         if (m_gst_pipeline)
 314         {
 315                 eDebug("starting pipeline");
 316                 gst_element_set_state (m_gst_pipeline, GST_STATE_PLAYING);
 317         }
 318         m_event(this, evStart);
 319         return 0;
 320 }
 321
 322 RESULT eServiceMP3::stop()
 323 {
 324         assert(m_state != stIdle);
 325         if (m_state == stStopped)
 326                 return -1;
 327         printf("MP3: %s stop\n", m_filename.c_str());
 328         gst_element_set_state(m_gst_pipeline, GST_STATE_NULL);
 329         m_state = stStopped;
 330         return 0;
 331 }
 332
 333 RESULT eServiceMP3::setTarget(int target)
 334 {
 335         return -1;
 336 }
 337
 338 RESULT eServiceMP3::pause(ePtr<iPauseableService> &ptr)
 339 {
 340         ptr=this;
 341         return 0;
 342 }
 343
 344 RESULT eServiceMP3::setSlowMotion(int ratio)
 345 {
 346         return -1;
 347 }
 348
 349 RESULT eServiceMP3::setFastForward(int ratio)
 350 {
 351         return -1;
 352 }
 353
 354                 // iPausableService
 355 RESULT eServiceMP3::pause()
 356 {
 357         if (!m_gst_pipeline)
 358                 return -1;
 359         gst_element_set_state(m_gst_pipeline, GST_STATE_PAUSED);
 360         return 0;
 361 }
 362
 363 RESULT eServiceMP3::unpause()
 364 {
 365         if (!m_gst_pipeline)
 366                 return -1;
 367         gst_element_set_state(m_gst_pipeline, GST_STATE_PLAYING);
 368         return 0;
 369 }
 370
 371         /* iSeekableService */
 372 RESULT eServiceMP3::seek(ePtr<iSeekableService> &ptr)
 373 {
 374         ptr = this;
 375         return 0;
 376 }
 377
 378 RESULT eServiceMP3::getLength(pts_t &pts)
 379 {
 380         if (!m_gst_pipeline)
 381                 return -1;
 382         if (m_state != stRunning)
 383                 return -1;
 384
 385         GstFormat fmt = GST_FORMAT_TIME;
 386         gint64 len;
 387
 388         if (!gst_element_query_duration(m_gst_pipeline, &fmt, &len))
 389                 return -1;
 390
 391                 /* len is in nanoseconds. we have 90 000 pts per second. */
 392
 393         pts = len / 11111;
 394         return 0;
 395 }
 396
 397 RESULT eServiceMP3::seekTo(pts_t to)
 398 {
 399         if (!m_gst_pipeline)
 400                 return -1;
 401
 402                 /* convert pts to nanoseconds */
 403         gint64 time_nanoseconds = to * 11111LL;
 404         if (!gst_element_seek (m_gst_pipeline, 1.0, GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH,
 405                 GST_SEEK_TYPE_SET, time_nanoseconds,
 406                 GST_SEEK_TYPE_NONE, GST_CLOCK_TIME_NONE))
 407         {
 408                 eDebug("SEEK failed");
 409                 return -1;
 410         }
 411         return 0;
 412 }
 413
 414 RESULT eServiceMP3::seekRelative(int direction, pts_t to)
 415 {
 416         if (!m_gst_pipeline)
 417                 return -1;
 418
 419         pause();
 420
 421         pts_t ppos;
 422         getPlayPosition(ppos);
 423         ppos += to * direction;
 424         if (ppos < 0)
 425                 ppos = 0;
 426         seekTo(ppos);
 427
 428         unpause();
 429
 430         return 0;
 431 }
 432
 433 RESULT eServiceMP3::getPlayPosition(pts_t &pts)
 434 {
 435         if (!m_gst_pipeline)
 436                 return -1;
 437         if (m_state != stRunning)
 438                 return -1;
 439
 440         GstFormat fmt = GST_FORMAT_TIME;
 441         gint64 len;
 442
 443         if (!gst_element_query_position(m_gst_pipeline, &fmt, &len))
 444                 return -1;
 445
 446                 /* len is in nanoseconds. we have 90 000 pts per second. */
 447         pts = len / 11111;
 448         return 0;
 449 }
 450
 451 RESULT eServiceMP3::setTrickmode(int trick)
 452 {
 453                 /* trickmode currently doesn't make any sense for us. */
 454         return -1;
 455 }
 456
 457 RESULT eServiceMP3::isCurrentlySeekable()
 458 {
 459         return 1;
 460 }
 461
 462 RESULT eServiceMP3::info(ePtr<iServiceInformation>&i)
 463 {
 464         i = this;
 465         return 0;
 466 }
 467
 468 RESULT eServiceMP3::getName(std::string &name)
 469 {
 470         name = "MP3 File: " + m_filename;
 471         return 0;
 472 }
 473
 474 int eServiceMP3::getInfo(int w)
 475 {
 476         switch (w)
 477         {
 478         case sTitle:
 479         case sArtist:
 480         case sAlbum:
 481         case sComment:
 482         case sTracknumber:
 483         case sGenre:
 484                 return resIsString;
 485
 486         default:
 487                 return resNA;
 488         }
 489 }
 490
 491 std::string eServiceMP3::getInfoString(int w)
 492 {
 493         gchar *tag = 0;
 494         switch (w)
 495         {
 496         case sTitle:
 497                 tag = GST_TAG_TITLE;
 498                 break;
 499         case sArtist:
 500                 tag = GST_TAG_ARTIST;
 501                 break;
 502         case sAlbum:
 503                 tag = GST_TAG_ALBUM;
 504                 break;
 505         case sComment:
 506                 tag = GST_TAG_COMMENT;
 507                 break;
 508         case sTracknumber:
 509                 tag = GST_TAG_TRACK_NUMBER;
 510                 break;
 511         case sGenre:
 512                 tag = GST_TAG_GENRE;
 513                 break;
 514         default:
 515                 return "";
 516         }
 517
 518         if (!m_stream_tags || !tag)
 519                 return "";
 520
 521         gchar *value;
 522
 523         if (gst_tag_list_get_string(m_stream_tags, tag, &value))
 524         {
 525                 std::string res = value;
 526                 g_free(value);
 527                 return res;
 528         }
 529
 530         return "";
 531 }
 532
 533
 534                 void foreach(const GstTagList *list, const gchar *tag, gpointer user_data)
 535                 {
 536                         if (tag)
 537                                 eDebug("Tag: %c%c%c%c", tag[0], tag[1], tag[2], tag[3]);
 538
 539                 }
 540
 541 void eServiceMP3::gstBusCall(GstBus *bus, GstMessage *msg)
 542 {
 543         if (msg)
 544         {
 545                 gchar *string = gst_structure_to_string(gst_message_get_structure(msg));
 546                 eDebug("gst_message: %s", string);
 547                 g_free(string);
 548         }
 549
 550         switch (GST_MESSAGE_TYPE (msg))
 551         {
 552         case GST_MESSAGE_EOS:
 553                 m_event((iPlayableService*)this, evEOF);
 554                 break;
 555         case GST_MESSAGE_ERROR:
 556         {
 557                 gchar *debug;
 558                 GError *err;
 559                 gst_message_parse_error (msg, &err, &debug);
 560                 g_free (debug);
 561                 eWarning("Gstreamer error: %s", err->message);
 562                 g_error_free(err);
 563                         /* TODO: signal error condition to user */
 564                 break;
 565         }
 566         case GST_MESSAGE_TAG:
 567         {
 568                 GstTagList *tags, *result;
 569                 gst_message_parse_tag(msg, &tags);
 570
 571                 result = gst_tag_list_merge(m_stream_tags, tags, GST_TAG_MERGE_PREPEND);
 572                 if (result)
 573                 {
 574                         if (m_stream_tags)
 575                                 gst_tag_list_free(m_stream_tags);
 576                         m_stream_tags = result;
 577                 }
 578                 gst_tag_list_free(tags);
 579
 580                 m_event((iPlayableService*)this, evUpdatedInfo);
 581                 break;
 582         }
 583         default:
 584                 break;
 585         }
 586 }
 587
 588 GstBusSyncReply eServiceMP3::gstBusSyncHandler(GstBus *bus, GstMessage *message, gpointer user_data)
 589 {
 590         eServiceMP3 *_this = (eServiceMP3*)user_data;
 591         _this->m_pump.send(1);
 592                 /* wake */
 593         return GST_BUS_PASS;
 594 }
 595
 596 void eServiceMP3::gstCBpadAdded(GstElement *decodebin, GstPad *pad, gpointer user_data)
 597 {
 598         eServiceMP3 *_this = (eServiceMP3*)user_data;
 599
 600         gchar *name;
 601         name = gst_pad_get_name (pad);
 602         g_print ("A new pad %s was created\n", name);
 603         if (!strncmp(name, "audio_", 6)) // mpegdemux uses video_nn with n=0,1,.., flupsdemux uses stream id
 604                 gst_pad_link(pad, gst_element_get_pad (_this->m_gst_audioqueue, "sink"));
 605         if (!strncmp(name, "video_", 6))
 606                 gst_pad_link(pad, gst_element_get_pad (_this->m_gst_videoqueue, "sink"));
 607         g_free (name);
 608
 609 }
 610
 611 void eServiceMP3::gstCBnewPad(GstElement *decodebin, GstPad *pad, gboolean last, gpointer user_data)
 612 {
 613         eServiceMP3 *_this = (eServiceMP3*)user_data;
 614         GstCaps *caps;
 615         GstStructure *str;
 616         GstPad *audiopad;
 617
 618         /* only link once */
 619         audiopad = gst_element_get_pad (_this->m_gst_audio, "sink");
 620         if (GST_PAD_IS_LINKED (audiopad)) {
 621                 eDebug("audio already linked!");
 622                 g_object_unref (audiopad);
 623                 return;
 624         }
 625
 626         /* check media type */
 627         caps = gst_pad_get_caps (pad);
 628         str = gst_caps_get_structure (caps, 0);
 629         eDebug("gst new pad! %s", gst_structure_get_name (str));
 630
 631         if (!g_strrstr (gst_structure_get_name (str), "audio")) {
 632                 gst_caps_unref (caps);
 633                 gst_object_unref (audiopad);
 634                 return;
 635         }
 636
 637         gst_caps_unref (caps);
 638         gst_pad_link (pad, audiopad);
 639 }
 640
 641 void eServiceMP3::gstCBunknownType(GstElement *decodebin, GstPad *pad, GstCaps *caps, gpointer user_data)
 642 {
 643         eServiceMP3 *_this = (eServiceMP3*)user_data;
 644         GstStructure *str;
 645
 646         /* check media type */
 647         caps = gst_pad_get_caps (pad);
 648         str = gst_caps_get_structure (caps, 0);
 649         eDebug("unknown type: %s - this can't be decoded.", gst_structure_get_name (str));
 650         gst_caps_unref (caps);
 651 }
 652
 653 void eServiceMP3::gstPoll(const int&)
 654 {
 655                 /* ok, we have a serious problem here. gstBusSyncHandler sends
 656                    us the wakup signal, but likely before it was posted.
 657                    the usleep, an EVIL HACK (DON'T DO THAT!!!) works around this.
 658
 659                    I need to understand the API a bit more to make this work
 660                    proplerly. */
 661         usleep(1);
 662
 663         GstBus *bus = gst_pipeline_get_bus (GST_PIPELINE (m_gst_pipeline));
 664         GstMessage *message;
 665         while ((message = gst_bus_pop (bus)))
 666         {
 667                 gstBusCall(bus, message);
 668                 gst_message_unref (message);
 669         }
 670 }
 671
 672 eAutoInitPtr<eServiceFactoryMP3> init_eServiceFactoryMP3(eAutoInitNumbers::service+1, "eServiceFactoryMP3");
 673 #else
 674 #warning gstreamer not available, not building media player
 675 #endif