code.vuplus.com Git - vuplus_dvbapp/blob - 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                 source = gst_element_factory_make ("neonhttpsrc", "http-source");
 144
 145         if (!source)
 146                 eWarning("failed to create %s", is_streaming ? "neonhttpsrc" : "filesrc");
 147         else
 148                                 /* configure source */
 149                 g_object_set (G_OBJECT (source), "location", filename, NULL);
 150
 151         if (use_decodebin)
 152         {
 153                         /* filesrc -> decodebin -> audioconvert -> capsfilter -> alsasink */
 154
 155                 decoder = gst_element_factory_make ("decodebin", "decoder");
 156                 if (!decoder)
 157                         eWarning("failed to create decodebin decoder");
 158
 159                 conv = gst_element_factory_make ("audioconvert", "converter");
 160                 if (!conv)
 161                         eWarning("failed to create audioconvert");
 162
 163                 flt = gst_element_factory_make ("capsfilter", "flt");
 164                 if (!flt)
 165                         eWarning("failed to create capsfilter");
 166
 167                         /* for some reasons, we need to set the sample format to depth/width=16, because auto negotiation doesn't work. */
 168                         /* endianness, however, is not required to be set anymore. */
 169                 if (flt)
 170                 {
 171                         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);
 172                         g_object_set (G_OBJECT (flt), "caps", caps, (char*)0);
 173                         gst_caps_unref(caps);
 174                 }
 175
 176                 sink = gst_element_factory_make ("alsasink", "alsa-output");
 177                 if (!sink)
 178                         eWarning("failed to create osssink");
 179
 180                 if (source && decoder && conv && sink)
 181                         all_ok = 1;
 182         } else /* is_video */
 183         {
 184                         /* filesrc -> mpegdemux -> | queue_audio -> dvbaudiosink
 185                                                    | queue_video -> dvbvideosink */
 186
 187                 audio = gst_element_factory_make("dvbaudiosink", "audio");
 188                 queue_audio = gst_element_factory_make("queue", "queue_audio");
 189
 190                 video = gst_element_factory_make("dvbvideosink", "video");
 191                 queue_video = gst_element_factory_make("queue", "queue_video");
 192
 193                 if (is_mpeg_ps)
 194                         mpegdemux = gst_element_factory_make("flupsdemux", "mpegdemux");
 195                 else
 196                         mpegdemux = gst_element_factory_make("flutsdemux", "mpegdemux");
 197
 198                 if (!mpegdemux)
 199                 {
 200                         eDebug("fluendo mpegdemux not available, falling back to mpegdemux\n");
 201                         mpegdemux = gst_element_factory_make("mpegdemux", "mpegdemux");
 202                 }
 203
 204                 eDebug("audio: %p, queue_audio %p, video %p, queue_video %p, mpegdemux %p", audio, queue_audio, video, queue_video, mpegdemux);
 205                 if (audio && queue_audio && video && queue_video && mpegdemux)
 206                         all_ok = 1;
 207         }
 208
 209         if (m_gst_pipeline && all_ok)
 210         {
 211                 gst_bus_set_sync_handler(gst_pipeline_get_bus (GST_PIPELINE (m_gst_pipeline)), gstBusSyncHandler, this);
 212
 213                 if (use_decodebin)
 214                 {
 215                         g_signal_connect (decoder, "new-decoded-pad", G_CALLBACK(gstCBnewPad), this);
 216                         g_signal_connect (decoder, "unknown-type", G_CALLBACK(gstCBunknownType), this);
 217
 218                                 /* gst_bin will take the 'floating references' */
 219                         gst_bin_add_many (GST_BIN (m_gst_pipeline),
 220                                                 source, decoder, NULL);
 221                         gst_element_link(source, decoder);
 222
 223                         /* create audio bin */
 224                         m_gst_audio = gst_bin_new ("audiobin");
 225                         GstPad *audiopad = gst_element_get_pad (conv, "sink");
 226
 227                         gst_bin_add_many(GST_BIN(m_gst_audio), conv, flt, sink, (char*)0);
 228                         gst_element_link_many(conv, flt, sink, (char*)0);
 229                         gst_element_add_pad(m_gst_audio, gst_ghost_pad_new ("sink", audiopad));
 230                         gst_object_unref(audiopad);
 231                         gst_bin_add (GST_BIN(m_gst_pipeline), m_gst_audio);
 232                 } else
 233                 {
 234                         gst_bin_add_many(GST_BIN(m_gst_pipeline), source, mpegdemux, audio, queue_audio, video, queue_video, NULL);
 235                         gst_element_link(source, mpegdemux);
 236                         gst_element_link(queue_audio, audio);
 237                         gst_element_link(queue_video, video);
 238
 239                         m_gst_audioqueue = queue_audio;
 240                         m_gst_videoqueue = queue_video;
 241
 242                         g_signal_connect(mpegdemux, "pad-added", G_CALLBACK (gstCBpadAdded), this);
 243                 }
 244         } else
 245         {
 246                 if (m_gst_pipeline)
 247                         gst_object_unref(GST_OBJECT(m_gst_pipeline));
 248                 if (source)
 249                         gst_object_unref(GST_OBJECT(source));
 250                 if (decoder)
 251                         gst_object_unref(GST_OBJECT(decoder));
 252                 if (conv)
 253                         gst_object_unref(GST_OBJECT(conv));
 254                 if (sink)
 255                         gst_object_unref(GST_OBJECT(sink));
 256
 257                 if (audio)
 258                         gst_object_unref(GST_OBJECT(audio));
 259                 if (queue_audio)
 260                         gst_object_unref(GST_OBJECT(queue_audio));
 261                 if (video)
 262                         gst_object_unref(GST_OBJECT(video));
 263                 if (queue_video)
 264                         gst_object_unref(GST_OBJECT(queue_video));
 265                 if (mpegdemux)
 266                         gst_object_unref(GST_OBJECT(mpegdemux));
 267
 268                 eDebug("sorry, can't play.");
 269                 m_gst_pipeline = 0;
 270         }
 271
 272         gst_element_set_state (m_gst_pipeline, GST_STATE_PLAYING);
 273 }
 274
 275 eServiceMP3::~eServiceMP3()
 276 {
 277         if (m_state == stRunning)
 278                 stop();
 279
 280         if (m_stream_tags)
 281                 gst_tag_list_free(m_stream_tags);
 282
 283         if (m_gst_pipeline)
 284         {
 285                 gst_object_unref (GST_OBJECT (m_gst_pipeline));
 286                 eDebug("SERVICEMP3 destruct!");
 287         }
 288 }
 289
 290 DEFINE_REF(eServiceMP3);
 291
 292 RESULT eServiceMP3::connectEvent(const Slot2<void,iPlayableService*,int> &event, ePtr<eConnection> &connection)
 293 {
 294         connection = new eConnection((iPlayableService*)this, m_event.connect(event));
 295         return 0;
 296 }
 297
 298 RESULT eServiceMP3::start()
 299 {
 300         assert(m_state == stIdle);
 301
 302         m_state = stRunning;
 303         if (m_gst_pipeline)
 304         {
 305                 eDebug("starting pipeline");
 306                 gst_element_set_state (m_gst_pipeline, GST_STATE_PLAYING);
 307         }
 308         m_event(this, evStart);
 309         return 0;
 310 }
 311
 312 RESULT eServiceMP3::stop()
 313 {
 314         assert(m_state != stIdle);
 315         if (m_state == stStopped)
 316                 return -1;
 317         printf("MP3: %s stop\n", m_filename.c_str());
 318         gst_element_set_state(m_gst_pipeline, GST_STATE_NULL);
 319         m_state = stStopped;
 320         return 0;
 321 }
 322
 323 RESULT eServiceMP3::setTarget(int target)
 324 {
 325         return -1;
 326 }
 327
 328 RESULT eServiceMP3::pause(ePtr<iPauseableService> &ptr)
 329 {
 330         ptr=this;
 331         return 0;
 332 }
 333
 334 RESULT eServiceMP3::setSlowMotion(int ratio)
 335 {
 336         return -1;
 337 }
 338
 339 RESULT eServiceMP3::setFastForward(int ratio)
 340 {
 341         return -1;
 342 }
 343
 344                 // iPausableService
 345 RESULT eServiceMP3::pause()
 346 {
 347         if (!m_gst_pipeline)
 348                 return -1;
 349         gst_element_set_state(m_gst_pipeline, GST_STATE_PAUSED);
 350         return 0;
 351 }
 352
 353 RESULT eServiceMP3::unpause()
 354 {
 355         if (!m_gst_pipeline)
 356                 return -1;
 357         gst_element_set_state(m_gst_pipeline, GST_STATE_PLAYING);
 358         return 0;
 359 }
 360
 361         /* iSeekableService */
 362 RESULT eServiceMP3::seek(ePtr<iSeekableService> &ptr)
 363 {
 364         ptr = this;
 365         return 0;
 366 }
 367
 368 RESULT eServiceMP3::getLength(pts_t &pts)
 369 {
 370         if (!m_gst_pipeline)
 371                 return -1;
 372         if (m_state != stRunning)
 373                 return -1;
 374
 375         GstFormat fmt = GST_FORMAT_TIME;
 376         gint64 len;
 377
 378         if (!gst_element_query_duration(m_gst_pipeline, &fmt, &len))
 379                 return -1;
 380
 381                 /* len is in nanoseconds. we have 90 000 pts per second. */
 382
 383         pts = len / 11111;
 384         return 0;
 385 }
 386
 387 RESULT eServiceMP3::seekTo(pts_t to)
 388 {
 389         if (!m_gst_pipeline)
 390                 return -1;
 391
 392                 /* convert pts to nanoseconds */
 393         gint64 time_nanoseconds = to * 11111LL;
 394         if (!gst_element_seek (m_gst_pipeline, 1.0, GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH,
 395                 GST_SEEK_TYPE_SET, time_nanoseconds,
 396                 GST_SEEK_TYPE_NONE, GST_CLOCK_TIME_NONE))
 397         {
 398                 eDebug("SEEK failed");
 399                 return -1;
 400         }
 401         return 0;
 402 }
 403
 404 RESULT eServiceMP3::seekRelative(int direction, pts_t to)
 405 {
 406         if (!m_gst_pipeline)
 407                 return -1;
 408
 409         pause();
 410
 411         pts_t ppos;
 412         getPlayPosition(ppos);
 413         ppos += to * direction;
 414         if (ppos < 0)
 415                 ppos = 0;
 416         seekTo(ppos);
 417
 418         unpause();
 419
 420         return 0;
 421 }
 422
 423 RESULT eServiceMP3::getPlayPosition(pts_t &pts)
 424 {
 425         if (!m_gst_pipeline)
 426                 return -1;
 427         if (m_state != stRunning)
 428                 return -1;
 429
 430         GstFormat fmt = GST_FORMAT_TIME;
 431         gint64 len;
 432
 433         if (!gst_element_query_position(m_gst_pipeline, &fmt, &len))
 434                 return -1;
 435
 436                 /* len is in nanoseconds. we have 90 000 pts per second. */
 437         pts = len / 11111;
 438         return 0;
 439 }
 440
 441 RESULT eServiceMP3::setTrickmode(int trick)
 442 {
 443                 /* trickmode currently doesn't make any sense for us. */
 444         return -1;
 445 }
 446
 447 RESULT eServiceMP3::isCurrentlySeekable()
 448 {
 449         return 1;
 450 }
 451
 452 RESULT eServiceMP3::info(ePtr<iServiceInformation>&i)
 453 {
 454         i = this;
 455         return 0;
 456 }
 457
 458 RESULT eServiceMP3::getName(std::string &name)
 459 {
 460         name = "MP3 File: " + m_filename;
 461         return 0;
 462 }
 463
 464 int eServiceMP3::getInfo(int w)
 465 {
 466         switch (w)
 467         {
 468         case sTitle:
 469         case sArtist:
 470         case sAlbum:
 471         case sComment:
 472         case sTracknumber:
 473         case sGenre:
 474                 return resIsString;
 475
 476         default:
 477                 return resNA;
 478         }
 479 }
 480
 481 std::string eServiceMP3::getInfoString(int w)
 482 {
 483         gchar *tag = 0;
 484         switch (w)
 485         {
 486         case sTitle:
 487                 tag = GST_TAG_TITLE;
 488                 break;
 489         case sArtist:
 490                 tag = GST_TAG_ARTIST;
 491                 break;
 492         case sAlbum:
 493                 tag = GST_TAG_ALBUM;
 494                 break;
 495         case sComment:
 496                 tag = GST_TAG_COMMENT;
 497                 break;
 498         case sTracknumber:
 499                 tag = GST_TAG_TRACK_NUMBER;
 500                 break;
 501         case sGenre:
 502                 tag = GST_TAG_GENRE;
 503                 break;
 504         default:
 505                 return "";
 506         }
 507
 508         if (!m_stream_tags || !tag)
 509                 return "";
 510
 511         gchar *value;
 512
 513         if (gst_tag_list_get_string(m_stream_tags, tag, &value))
 514         {
 515                 std::string res = value;
 516                 g_free(value);
 517                 return res;
 518         }
 519
 520         return "";
 521 }
 522
 523
 524                 void foreach(const GstTagList *list, const gchar *tag, gpointer user_data)
 525                 {
 526                         if (tag)
 527                                 eDebug("Tag: %c%c%c%c", tag[0], tag[1], tag[2], tag[3]);
 528
 529                 }
 530
 531 void eServiceMP3::gstBusCall(GstBus *bus, GstMessage *msg)
 532 {
 533         if (msg)
 534         {
 535                 gchar *string = gst_structure_to_string(gst_message_get_structure(msg));
 536                 eDebug("gst_message: %s", string);
 537                 g_free(string);
 538         }
 539
 540         switch (GST_MESSAGE_TYPE (msg))
 541         {
 542         case GST_MESSAGE_EOS:
 543                 m_event((iPlayableService*)this, evEOF);
 544                 break;
 545         case GST_MESSAGE_ERROR:
 546         {
 547                 gchar *debug;
 548                 GError *err;
 549                 gst_message_parse_error (msg, &err, &debug);
 550                 g_free (debug);
 551                 eWarning("Gstreamer error: %s", err->message);
 552                 g_error_free(err);
 553                         /* TODO: signal error condition to user */
 554                 break;
 555         }
 556         case GST_MESSAGE_TAG:
 557         {
 558                 GstTagList *tags, *result;
 559                 gst_message_parse_tag(msg, &tags);
 560
 561                 result = gst_tag_list_merge(m_stream_tags, tags, GST_TAG_MERGE_PREPEND);
 562                 if (result)
 563                 {
 564                         if (m_stream_tags)
 565                                 gst_tag_list_free(m_stream_tags);
 566                         m_stream_tags = result;
 567                 }
 568                 gst_tag_list_free(tags);
 569                 break;
 570         }
 571         default:
 572                 break;
 573         }
 574 }
 575
 576 GstBusSyncReply eServiceMP3::gstBusSyncHandler(GstBus *bus, GstMessage *message, gpointer user_data)
 577 {
 578         eServiceMP3 *_this = (eServiceMP3*)user_data;
 579         _this->m_pump.send(1);
 580                 /* wake */
 581         return GST_BUS_PASS;
 582 }
 583
 584 void eServiceMP3::gstCBpadAdded(GstElement *decodebin, GstPad *pad, gpointer user_data)
 585 {
 586         eServiceMP3 *_this = (eServiceMP3*)user_data;
 587
 588         gchar *name;
 589         name = gst_pad_get_name (pad);
 590         g_print ("A new pad %s was created\n", name);
 591         if (!strncmp(name, "audio_", 6)) // mpegdemux uses video_nn with n=0,1,.., flupsdemux uses stream id
 592                 gst_pad_link(pad, gst_element_get_pad (_this->m_gst_audioqueue, "sink"));
 593         if (!strncmp(name, "video_", 6))
 594                 gst_pad_link(pad, gst_element_get_pad (_this->m_gst_videoqueue, "sink"));
 595         g_free (name);
 596
 597 }
 598
 599 void eServiceMP3::gstCBnewPad(GstElement *decodebin, GstPad *pad, gboolean last, gpointer user_data)
 600 {
 601         eServiceMP3 *_this = (eServiceMP3*)user_data;
 602         GstCaps *caps;
 603         GstStructure *str;
 604         GstPad *audiopad;
 605
 606         /* only link once */
 607         audiopad = gst_element_get_pad (_this->m_gst_audio, "sink");
 608         if (GST_PAD_IS_LINKED (audiopad)) {
 609                 eDebug("audio already linked!");
 610                 g_object_unref (audiopad);
 611                 return;
 612         }
 613
 614         /* check media type */
 615         caps = gst_pad_get_caps (pad);
 616         str = gst_caps_get_structure (caps, 0);
 617         eDebug("gst new pad! %s", gst_structure_get_name (str));
 618
 619         if (!g_strrstr (gst_structure_get_name (str), "audio")) {
 620                 gst_caps_unref (caps);
 621                 gst_object_unref (audiopad);
 622                 return;
 623         }
 624
 625         gst_caps_unref (caps);
 626         gst_pad_link (pad, audiopad);
 627 }
 628
 629 void eServiceMP3::gstCBunknownType(GstElement *decodebin, GstPad *pad, GstCaps *caps, gpointer user_data)
 630 {
 631         eServiceMP3 *_this = (eServiceMP3*)user_data;
 632         GstStructure *str;
 633
 634         /* check media type */
 635         caps = gst_pad_get_caps (pad);
 636         str = gst_caps_get_structure (caps, 0);
 637         eDebug("unknown type: %s - this can't be decoded.", gst_structure_get_name (str));
 638         gst_caps_unref (caps);
 639 }
 640
 641 void eServiceMP3::gstPoll(const int&)
 642 {
 643                 /* ok, we have a serious problem here. gstBusSyncHandler sends
 644                    us the wakup signal, but likely before it was posted.
 645                    the usleep, an EVIL HACK (DON'T DO THAT!!!) works around this.
 646
 647                    I need to understand the API a bit more to make this work
 648                    proplerly. */
 649         usleep(1);
 650
 651         GstBus *bus = gst_pipeline_get_bus (GST_PIPELINE (m_gst_pipeline));
 652         GstMessage *message;
 653         while ((message = gst_bus_pop (bus)))
 654         {
 655                 gstBusCall(bus, message);
 656                 gst_message_unref (message);
 657         }
 658 }
 659
 660 eAutoInitPtr<eServiceFactoryMP3> init_eServiceFactoryMP3(eAutoInitNumbers::service+1, "eServiceFactoryMP3");
 661 #else
 662 #warning gstreamer not available, not building media player
 663 #endif