src/modules/gstreamer/emotion_sink.c

   1 #include <Ecore.h>
   2
   3 #include "emotion_gstreamer.h"
   4
   5 static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE("sink",
   6                                                                    GST_PAD_SINK, GST_PAD_ALWAYS,
   7                                                                    GST_STATIC_CAPS(GST_VIDEO_CAPS_YUV("{ I420, YV12, YUY2 }") ";"
   8                                                                                    GST_VIDEO_CAPS_BGRx ";" GST_VIDEO_CAPS_BGR ";" GST_VIDEO_CAPS_BGRA));
   9
  10 GST_DEBUG_CATEGORY_STATIC(evas_video_sink_debug);
  11 #define GST_CAT_DEFAULT evas_video_sink_debug
  12
  13 enum {
  14   REPAINT_REQUESTED,
  15   LAST_SIGNAL
  16 };
  17
  18 enum {
  19   PROP_0,
  20   PROP_EVAS_OBJECT,
  21   PROP_WIDTH,
  22   PROP_HEIGHT,
  23   PROP_LAST,
  24 };
  25
  26 static guint evas_video_sink_signals[LAST_SIGNAL] = { 0, };
  27
  28 #define _do_init(bla)                                   \
  29   GST_DEBUG_CATEGORY_INIT(evas_video_sink_debug,        \
  30                           "emotion-sink",               \
  31                           0,                            \
  32                           "emotion video sink")
  33
  34 GST_BOILERPLATE_FULL(EvasVideoSink,
  35                      evas_video_sink,
  36                      GstVideoSink,
  37                      GST_TYPE_VIDEO_SINK,
  38                      _do_init);
  39
  40
  41 static void unlock_buffer_mutex(EvasVideoSinkPrivate* priv);
  42
  43 static void evas_video_sink_main_render(void *data);
  44
  45 static void
  46 evas_video_sink_base_init(gpointer g_class)
  47 {
  48    GstElementClass* element_class;
  49
  50    element_class = GST_ELEMENT_CLASS(g_class);
  51    gst_element_class_add_pad_template(element_class, gst_static_pad_template_get(&sinktemplate));
  52    gst_element_class_set_details_simple(element_class, "Evas video sink",
  53                                         "Sink/Video", "Sends video data from a GStreamer pipeline to an Evas object",
  54                                         "Vincent Torri <vtorri@univ-evry.fr>");
  55 }
  56
  57 static void
  58 evas_video_sink_init(EvasVideoSink* sink, EvasVideoSinkClass* klass __UNUSED__)
  59 {
  60    EvasVideoSinkPrivate* priv;
  61
  62    INF("sink init");
  63    sink->priv = priv = G_TYPE_INSTANCE_GET_PRIVATE(sink, EVAS_TYPE_VIDEO_SINK, EvasVideoSinkPrivate);
  64    priv->o = NULL;
  65    priv->last_buffer = NULL;
  66    priv->width = 0;
  67    priv->height = 0;
  68    priv->gformat = GST_VIDEO_FORMAT_UNKNOWN;
  69    priv->eformat = EVAS_COLORSPACE_ARGB8888;
  70    priv->data_cond = g_cond_new();
  71    priv->buffer_mutex = g_mutex_new();
  72    priv->unlocked = EINA_FALSE;
  73 }
  74
  75
  76 /**** Object methods ****/
  77
  78 static void
  79 evas_video_sink_set_property(GObject * object, guint prop_id,
  80                              const GValue * value, GParamSpec * pspec)
  81 {
  82    EvasVideoSink* sink;
  83    EvasVideoSinkPrivate* priv;
  84
  85    sink = EVAS_VIDEO_SINK (object);
  86    priv = sink->priv;
  87
  88    switch (prop_id) {
  89     case PROP_EVAS_OBJECT:
  90        g_mutex_lock(priv->buffer_mutex);
  91        priv->o = g_value_get_pointer (value);
  92        g_mutex_unlock(priv->buffer_mutex);
  93        break;
  94     default:
  95        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
  96        ERR("invalid property");
  97        break;
  98    }
  99 }
 100
 101 static void
 102 evas_video_sink_get_property(GObject * object, guint prop_id,
 103                              GValue * value, GParamSpec * pspec)
 104 {
 105    EvasVideoSink* sink;
 106    EvasVideoSinkPrivate* priv;
 107
 108    sink = EVAS_VIDEO_SINK (object);
 109    priv = sink->priv;
 110
 111    switch (prop_id) {
 112     case PROP_EVAS_OBJECT:
 113        g_mutex_lock(priv->buffer_mutex);
 114        g_value_set_pointer (value, priv->o);
 115        g_mutex_unlock(priv->buffer_mutex);
 116        break;
 117     case PROP_WIDTH:
 118        g_mutex_lock(priv->buffer_mutex);
 119        g_value_set_int(value, priv->width);
 120        g_mutex_unlock(priv->buffer_mutex);
 121        break;
 122     case PROP_HEIGHT:
 123        g_mutex_lock(priv->buffer_mutex);
 124        g_value_set_int (value, priv->height);
 125        g_mutex_unlock(priv->buffer_mutex);
 126        break;
 127     default:
 128        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 129        ERR("invalide property");
 130        break;
 131    }
 132 }
 133
 134 static void
 135 evas_video_sink_dispose(GObject* object)
 136 {
 137    EvasVideoSink* sink;
 138    EvasVideoSinkPrivate* priv;
 139
 140    sink = EVAS_VIDEO_SINK(object);
 141    priv = sink->priv;
 142
 143    if (priv->buffer_mutex) {
 144       g_mutex_free(priv->buffer_mutex);
 145       priv->buffer_mutex = 0;
 146    }
 147
 148    if (priv->data_cond) {
 149       g_cond_free(priv->data_cond);
 150       priv->data_cond = 0;
 151    }
 152
 153    if (priv->last_buffer) {
 154       gst_buffer_unref(priv->last_buffer);
 155       priv->last_buffer = NULL;
 156    }
 157
 158    G_OBJECT_CLASS(parent_class)->dispose(object);
 159 }
 160
 161
 162 /**** BaseSink methods ****/
 163
 164 gboolean evas_video_sink_set_caps(GstBaseSink *bsink, GstCaps *caps)
 165 {
 166    EvasVideoSink* sink;
 167    EvasVideoSinkPrivate* priv;
 168    GstVideoFormat format;
 169    int width;
 170    int height;
 171
 172    sink = EVAS_VIDEO_SINK(bsink);
 173    priv = sink->priv;
 174
 175    if (G_UNLIKELY(!gst_video_format_parse_caps(caps, &format, &width, &height))) {
 176       ERR("Unable to parse caps.");
 177       return FALSE;
 178    }
 179
 180    priv->width = width;
 181    priv->height = height;
 182
 183    printf("%p format :", priv->o);
 184    switch (format)
 185      {
 186       case GST_VIDEO_FORMAT_I420: priv->eformat = EVAS_COLORSPACE_YCBCR422P601_PL;
 187          printf ("I420\n");
 188          break;
 189       case GST_VIDEO_FORMAT_YV12: priv->eformat = EVAS_COLORSPACE_YCBCR422P601_PL;
 190          printf ("YV12\n");
 191          break;
 192       case GST_VIDEO_FORMAT_YUY2: priv->eformat = EVAS_COLORSPACE_YCBCR422601_PL;
 193          printf("YUY2\n");
 194          break;
 195       case GST_VIDEO_FORMAT_BGR: priv->eformat = EVAS_COLORSPACE_ARGB8888;
 196          printf ("BGR\n");
 197          break;
 198       case GST_VIDEO_FORMAT_BGRx: priv->eformat = EVAS_COLORSPACE_ARGB8888;
 199          printf ("BGRx\n");
 200          break;
 201       case GST_VIDEO_FORMAT_BGRA: priv->eformat = EVAS_COLORSPACE_ARGB8888;
 202          printf ("BGRA\n");
 203          break;
 204       default:
 205          ERR("unsupported : %d\n", format);
 206          return FALSE;
 207      }
 208    priv->gformat = format;
 209
 210    return TRUE;
 211 }
 212
 213 static gboolean
 214 evas_video_sink_start(GstBaseSink* base_sink)
 215 {
 216    EvasVideoSinkPrivate* priv;
 217    gboolean res = TRUE;
 218
 219    priv = EVAS_VIDEO_SINK(base_sink)->priv;
 220    g_mutex_lock(priv->buffer_mutex);
 221    if (!priv->o)
 222      res = FALSE;
 223    else
 224      priv->unlocked = EINA_FALSE;
 225    g_mutex_unlock(priv->buffer_mutex);
 226    return res;
 227 }
 228
 229 static gboolean
 230 evas_video_sink_stop(GstBaseSink* base_sink)
 231 {
 232    EvasVideoSinkPrivate* priv = EVAS_VIDEO_SINK(base_sink)->priv;
 233
 234    unlock_buffer_mutex(priv);
 235    return TRUE;
 236 }
 237
 238 static gboolean
 239 evas_video_sink_unlock(GstBaseSink* object)
 240 {
 241    EvasVideoSink* sink;
 242
 243    sink = EVAS_VIDEO_SINK(object);
 244
 245    unlock_buffer_mutex(sink->priv);
 246
 247    return GST_CALL_PARENT_WITH_DEFAULT(GST_BASE_SINK_CLASS, unlock,
 248                                        (object), TRUE);
 249 }
 250
 251 static gboolean
 252 evas_video_sink_unlock_stop(GstBaseSink* object)
 253 {
 254    EvasVideoSink* sink;
 255    EvasVideoSinkPrivate* priv;
 256
 257    sink = EVAS_VIDEO_SINK(object);
 258    priv = sink->priv;
 259
 260    g_mutex_lock(priv->buffer_mutex);
 261    priv->unlocked = FALSE;
 262    g_mutex_unlock(priv->buffer_mutex);
 263
 264    return GST_CALL_PARENT_WITH_DEFAULT(GST_BASE_SINK_CLASS, unlock_stop,
 265                                        (object), TRUE);
 266 }
 267
 268 static GstFlowReturn
 269 evas_video_sink_preroll(GstBaseSink* bsink, GstBuffer* buffer)
 270 {
 271    Emotion_Gstreamer_Buffer *send;
 272    EvasVideoSinkPrivate *priv;
 273    EvasVideoSink *sink;
 274
 275    sink = EVAS_VIDEO_SINK(bsink);
 276    priv = sink->priv;
 277
 278    send = emotion_gstreamer_buffer_alloc(priv, buffer, EINA_TRUE);
 279
 280    if (send)
 281      ecore_main_loop_thread_safe_call(evas_video_sink_main_render, send);
 282
 283    return GST_FLOW_OK;
 284 }
 285
 286 static GstFlowReturn
 287 evas_video_sink_render(GstBaseSink* bsink, GstBuffer* buffer)
 288 {
 289    Emotion_Gstreamer_Buffer *send;
 290    EvasVideoSinkPrivate *priv;
 291    EvasVideoSink *sink;
 292    Eina_Bool ret;
 293
 294    sink = EVAS_VIDEO_SINK(bsink);
 295    priv = sink->priv;
 296
 297    g_mutex_lock(priv->buffer_mutex);
 298
 299    if (priv->unlocked) {
 300       ERR("LOCKED");
 301       g_mutex_unlock(priv->buffer_mutex);
 302       return GST_FLOW_OK;
 303    }
 304
 305    send = emotion_gstreamer_buffer_alloc(priv, buffer, EINA_FALSE);
 306    if (!send) return GST_FLOW_ERROR;
 307
 308    ecore_main_loop_thread_safe_call(evas_video_sink_main_render, send);
 309
 310    g_cond_wait(priv->data_cond, priv->buffer_mutex);
 311    g_mutex_unlock(priv->buffer_mutex);
 312
 313    return GST_FLOW_OK;
 314 }
 315
 316 static void evas_video_sink_main_render(void *data)
 317 {
 318    Emotion_Gstreamer_Buffer *send;
 319    Emotion_Gstreamer_Video *ev;
 320    Emotion_Video_Stream *vstream;
 321    EvasVideoSinkPrivate* priv;
 322    GstBuffer* buffer;
 323    unsigned char *evas_data;
 324    const guint8 *gst_data;
 325    GstQuery *query;
 326    GstFormat fmt = GST_FORMAT_TIME;
 327    Evas_Coord w, h;
 328    gint64 pos;
 329    Eina_Bool preroll;
 330
 331    send = data;
 332
 333    priv = send->sink;
 334    if (!priv) goto exit_point;
 335
 336    buffer = send->frame;
 337    preroll = send->preroll;
 338
 339    if (priv->unlocked) goto exit_point;
 340
 341    gst_data = GST_BUFFER_DATA(buffer);
 342    if (!gst_data) goto exit_point;
 343
 344    ev = evas_object_data_get(priv->o, "_emotion_gstreamer_video");
 345    if (!ev) goto exit_point;
 346
 347    _emotion_gstreamer_video_pipeline_parse(ev, EINA_TRUE);
 348
 349    // This prevent a race condition when data are still in the pipe
 350    // but the buffer size as changed because of a request from
 351    // emotion smart (like on a file set).
 352    evas_object_image_size_get(priv->o, &w, &h);
 353    if (w != priv->width || h != priv->height)
 354      goto exit_point;
 355
 356    evas_object_image_size_set(priv->o, priv->width, priv->height);
 357    evas_object_image_alpha_set(priv->o, 0);
 358    evas_object_image_colorspace_set(priv->o, priv->eformat);
 359
 360    evas_data = (unsigned char *)evas_object_image_data_get(priv->o, 1);
 361
 362    // Evas's BGRA has pre-multiplied alpha while GStreamer's doesn't.
 363    // Here we convert to Evas's BGRA.
 364    switch (priv->gformat)
 365      {
 366       case GST_VIDEO_FORMAT_BGR:
 367         {
 368            unsigned char *evas_tmp;
 369            int x;
 370            int y;
 371
 372            evas_tmp = evas_data;
 373            /* FIXME: could this be optimized ? */
 374            for (x = 0; x < priv->height; x++) {
 375               for (y = 0; y < priv->width; y++) {
 376                  evas_tmp[0] = gst_data[0];
 377                  evas_tmp[1] = gst_data[1];
 378                  evas_tmp[2] = gst_data[2];
 379                  evas_tmp[3] = 255;
 380                  gst_data += 3;
 381                  evas_tmp += 4;
 382               }
 383            }
 384            break;
 385         }
 386
 387         // Evas's BGRA has pre-multiplied alpha while GStreamer's doesn't.
 388         // Here we convert to Evas's BGRA.
 389       case GST_VIDEO_FORMAT_BGRx:
 390         {
 391            unsigned char *evas_tmp;
 392            int x;
 393            int y;
 394
 395            evas_tmp = evas_data;
 396            /* FIXME: could this be optimized ? */
 397            for (x = 0; x < priv->height; x++) {
 398               for (y = 0; y < priv->width; y++) {
 399                  evas_tmp[0] = gst_data[0];
 400                  evas_tmp[1] = gst_data[1];
 401                  evas_tmp[2] = gst_data[2];
 402                  evas_tmp[3] = 255;
 403                  gst_data += 4;
 404                  evas_tmp += 4;
 405               }
 406            }
 407            break;
 408         }
 409
 410         // Evas's BGRA has pre-multiplied alpha while GStreamer's doesn't.
 411         // Here we convert to Evas's BGRA.
 412       case GST_VIDEO_FORMAT_BGRA:
 413         {
 414            unsigned char *evas_tmp;
 415            int x;
 416            int y;
 417            unsigned char alpha;
 418
 419            evas_tmp = evas_data;
 420            /* FIXME: could this be optimized ? */
 421            for (x = 0; x < priv->height; x++) {
 422               for (y = 0; y < priv->width; y++) {
 423                  alpha = gst_data[3];
 424                  evas_tmp[0] = (gst_data[0] * alpha) / 255;
 425                  evas_tmp[1] = (gst_data[1] * alpha) / 255;
 426                  evas_tmp[2] = (gst_data[2] * alpha) / 255;
 427                  evas_tmp[3] = alpha;
 428                  gst_data += 4;
 429                  evas_tmp += 4;
 430               }
 431            }
 432            break;
 433         }
 434
 435       case GST_VIDEO_FORMAT_I420:
 436         {
 437            int i;
 438            const unsigned char **rows;
 439
 440            evas_object_image_pixels_dirty_set(priv->o, 1);
 441            rows = (const unsigned char **)evas_data;
 442
 443            for (i = 0; i < priv->height; i++)
 444              rows[i] = &gst_data[i * priv->width];
 445
 446            rows += priv->height;
 447            for (i = 0; i < (priv->height / 2); i++)
 448              rows[i] = &gst_data[priv->height * priv->width + i * (priv->width / 2)];
 449
 450            rows += priv->height / 2;
 451            for (i = 0; i < (priv->height / 2); i++)
 452              rows[i] = &gst_data[priv->height * priv->width + priv->height * (priv->width /4) + i * (priv->width / 2)];
 453            break;
 454         }
 455
 456       case GST_VIDEO_FORMAT_YV12:
 457         {
 458            int i;
 459            const unsigned char **rows;
 460
 461            evas_object_image_pixels_dirty_set(priv->o, 1);
 462
 463            rows = (const unsigned char **)evas_data;
 464
 465            for (i = 0; i < priv->height; i++)
 466              rows[i] = &gst_data[i * priv->width];
 467
 468            rows += priv->height;
 469            for (i = 0; i < (priv->height / 2); i++)
 470              rows[i] = &gst_data[priv->height * priv->width + priv->height * (priv->width /4) + i * (priv->width / 2)];
 471
 472            rows += priv->height / 2;
 473            for (i = 0; i < (priv->height / 2); i++)
 474              rows[i] = &gst_data[priv->height * priv->width + i * (priv->width / 2)];
 475            break;
 476         }
 477
 478       case GST_VIDEO_FORMAT_YUY2:
 479         {
 480            int i;
 481            const unsigned char **rows;
 482
 483            evas_object_image_pixels_dirty_set(priv->o, 1);
 484
 485            rows = (const unsigned char **)evas_data;
 486
 487            for (i = 0; i < priv->height; i++)
 488              rows[i] = &gst_data[i * priv->width * 2];
 489            break;
 490         }
 491      }
 492
 493    evas_object_image_data_update_add(priv->o, 0, 0, priv->width, priv->height);
 494    evas_object_image_data_set(priv->o, evas_data);
 495    evas_object_image_pixels_dirty_set(priv->o, 0);
 496
 497    _emotion_frame_new(ev->obj);
 498
 499    vstream = eina_list_nth(ev->video_streams, ev->video_stream_nbr - 1);
 500
 501    gst_element_query_position(ev->pipeline, &fmt, &pos);
 502    ev->position = (double)pos / (double)GST_SECOND;
 503
 504    vstream->width = priv->width;
 505    vstream->height = priv->height;
 506    ev->ratio = (double) priv->width / (double) priv->height;
 507
 508    _emotion_video_pos_update(ev->obj, ev->position, vstream->length_time);
 509    _emotion_frame_resize(ev->obj, priv->width, priv->height, ev->ratio);
 510
 511    if (priv->last_buffer) gst_buffer_unref(priv->last_buffer);
 512    priv->last_buffer = gst_buffer_ref(buffer);
 513
 514  exit_point:
 515    emotion_gstreamer_buffer_free(send);
 516
 517    if (preroll) return ;
 518
 519    g_mutex_lock(priv->buffer_mutex);
 520
 521    if (priv->unlocked) {
 522       g_mutex_unlock(priv->buffer_mutex);
 523       return;
 524    }
 525
 526    g_cond_signal(priv->data_cond);
 527    g_mutex_unlock(priv->buffer_mutex);
 528 }
 529
 530 static void
 531 unlock_buffer_mutex(EvasVideoSinkPrivate* priv)
 532 {
 533    g_mutex_lock(priv->buffer_mutex);
 534
 535    priv->unlocked = EINA_TRUE;
 536    g_cond_signal(priv->data_cond);
 537    g_mutex_unlock(priv->buffer_mutex);
 538 }
 539
 540 static void
 541 marshal_VOID__MINIOBJECT(GClosure * closure, GValue * return_value __UNUSED__,
 542                          guint n_param_values, const GValue * param_values,
 543                          gpointer invocation_hint __UNUSED__, gpointer marshal_data)
 544 {
 545    typedef void (*marshalfunc_VOID__MINIOBJECT) (gpointer obj, gpointer arg1, gpointer data2);
 546    marshalfunc_VOID__MINIOBJECT callback;
 547    GCClosure *cc;
 548    gpointer data1, data2;
 549
 550    cc = (GCClosure *) closure;
 551
 552    g_return_if_fail(n_param_values == 2);
 553
 554    if (G_CCLOSURE_SWAP_DATA(closure)) {
 555       data1 = closure->data;
 556       data2 = g_value_peek_pointer(param_values + 0);
 557    } else {
 558       data1 = g_value_peek_pointer(param_values + 0);
 559       data2 = closure->data;
 560    }
 561    callback = (marshalfunc_VOID__MINIOBJECT) (marshal_data ? marshal_data : cc->callback);
 562
 563    callback(data1, gst_value_get_mini_object(param_values + 1), data2);
 564 }
 565
 566 static void
 567 evas_video_sink_class_init(EvasVideoSinkClass* klass)
 568 {
 569    GObjectClass* gobject_class;
 570    GstBaseSinkClass* gstbase_sink_class;
 571
 572    gobject_class = G_OBJECT_CLASS(klass);
 573    gstbase_sink_class = GST_BASE_SINK_CLASS(klass);
 574
 575    g_type_class_add_private(klass, sizeof(EvasVideoSinkPrivate));
 576
 577    gobject_class->set_property = evas_video_sink_set_property;
 578    gobject_class->get_property = evas_video_sink_get_property;
 579
 580    g_object_class_install_property (gobject_class, PROP_EVAS_OBJECT,
 581                                     g_param_spec_pointer ("evas-object", "Evas Object",
 582                                                           "The Evas object where the display of the video will be done",
 583                                                           G_PARAM_READWRITE));
 584
 585    g_object_class_install_property (gobject_class, PROP_WIDTH,
 586                                     g_param_spec_int ("width", "Width",
 587                                                       "The width of the video",
 588                                                       0, 65536, 0, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
 589
 590    g_object_class_install_property (gobject_class, PROP_HEIGHT,
 591                                     g_param_spec_int ("height", "Height",
 592                                                       "The height of the video",
 593                                                       0, 65536, 0, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
 594
 595    gobject_class->dispose = evas_video_sink_dispose;
 596
 597    gstbase_sink_class->set_caps = evas_video_sink_set_caps;
 598    gstbase_sink_class->stop = evas_video_sink_stop;
 599    gstbase_sink_class->start = evas_video_sink_start;
 600    gstbase_sink_class->unlock = evas_video_sink_unlock;
 601    gstbase_sink_class->unlock_stop = evas_video_sink_unlock_stop;
 602    gstbase_sink_class->render = evas_video_sink_render;
 603    gstbase_sink_class->preroll = evas_video_sink_preroll;
 604
 605    evas_video_sink_signals[REPAINT_REQUESTED] = g_signal_new("repaint-requested",
 606                                                              G_TYPE_FROM_CLASS(klass),
 607                                                              (GSignalFlags)(G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION),
 608                                                              0,
 609                                                              0,
 610                                                              0,
 611                                                              marshal_VOID__MINIOBJECT,
 612                                                              G_TYPE_NONE, 1, GST_TYPE_BUFFER);
 613 }
 614
 615 gboolean
 616 gstreamer_plugin_init (GstPlugin * plugin)
 617 {
 618    return gst_element_register (plugin,
 619                                 "emotion-sink",
 620                                 GST_RANK_NONE,
 621                                 EVAS_TYPE_VIDEO_SINK);
 622 }
 623
 624 static void
 625 _emotion_gstreamer_pause(void *data, Ecore_Thread *thread __UNUSED__)
 626 {
 627    Emotion_Gstreamer_Video *ev = data;
 628
 629    gst_element_set_state(ev->pipeline, GST_STATE_PAUSED);
 630 }
 631
 632 static void
 633 _emotion_gstreamer_cancel(void *data, Ecore_Thread *thread __UNUSED__)
 634 {
 635    Emotion_Gstreamer_Video *ev = data;
 636
 637    ev->thread = NULL;
 638 }
 639
 640 static void
 641 _emotion_gstreamer_end(void *data, Ecore_Thread *thread)
 642 {
 643    _emotion_gstreamer_video_pipeline_parse(data, EINA_TRUE);
 644    _emotion_gstreamer_cancel(data, thread);
 645 }
 646
 647 GstElement *
 648 gstreamer_video_sink_new(Emotion_Gstreamer_Video *ev,
 649                          Evas_Object *o,
 650                          const char *uri)
 651 {
 652    GstElement *playbin;
 653    GstElement *sink;
 654    Evas_Object *obj;
 655    GstStateChangeReturn res;
 656
 657    obj = _emotion_image_get(o);
 658    if (!obj)
 659      {
 660         ERR("Not Evas_Object specified");
 661         return NULL;
 662      }
 663
 664    playbin = gst_element_factory_make("playbin2", "playbin");
 665    if (!playbin)
 666      {
 667         ERR("Unable to create 'playbin' GstElement.");
 668         return NULL;
 669      }
 670
 671    sink = gst_element_factory_make("emotion-sink", "sink");
 672    if (!sink)
 673      {
 674         ERR("Unable to create 'emotion-sink' GstElement.");
 675         goto unref_pipeline;
 676      }
 677
 678    g_object_set(G_OBJECT(playbin), "video-sink", sink, NULL);
 679    g_object_set(G_OBJECT(playbin), "uri", uri, NULL);
 680    g_object_set(G_OBJECT(sink), "evas-object", obj, NULL);
 681
 682    ev->pipeline = playbin;
 683    ev->thread = ecore_thread_run(_emotion_gstreamer_pause,
 684                                  _emotion_gstreamer_end,
 685                                  _emotion_gstreamer_cancel,
 686                                  ev);
 687
 688    /** NOTE: you need to set: GST_DEBUG_DUMP_DOT_DIR=/tmp EMOTION_ENGINE=gstreamer to save the $EMOTION_GSTREAMER_DOT file in '/tmp' */
 689    /** then call dot -Tpng -oemotion_pipeline.png /tmp/$TIMESTAMP-$EMOTION_GSTREAMER_DOT.dot */
 690    if (getenv("EMOTION_GSTREAMER_DOT")) GST_DEBUG_BIN_TO_DOT_FILE_WITH_TS(GST_BIN(playbin), GST_DEBUG_GRAPH_SHOW_ALL, getenv("EMOTION_GSTREAMER_DOT"));
 691
 692    evas_object_data_set(obj, "_emotion_gstreamer_video", ev);
 693
 694    return playbin;
 695
 696  unref_pipeline:
 697    gst_object_unref(playbin);
 698    return NULL;
 699 }