Exemplos de gst_task_get_state em C++ (Cpp)

Exemplo n.º 1

static GstStateChangeReturn
gst_qt_moov_recover_change_state (GstElement * element,
    GstStateChange transition)
{
  GstStateChangeReturn ret;
  GstQTMoovRecover *qtmr = GST_QT_MOOV_RECOVER_CAST (element);

  switch (transition) {
    case GST_STATE_CHANGE_NULL_TO_READY:
      qtmr->task = gst_task_create (gst_qt_moov_recover_run, qtmr);
      qtmr->task_mutex = g_new (GStaticRecMutex, 1);
      g_static_rec_mutex_init (qtmr->task_mutex);
      gst_task_set_lock (qtmr->task, qtmr->task_mutex);
      break;
    case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
      gst_task_start (qtmr->task);
      break;
    default:
      break;
  }

  ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);

  switch (transition) {
    case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
      gst_task_stop (qtmr->task);
      gst_task_join (qtmr->task);
      break;
    case GST_STATE_CHANGE_READY_TO_NULL:
      g_assert (gst_task_get_state (qtmr->task) == GST_TASK_STOPPED);
      gst_object_unref (qtmr->task);
      qtmr->task = NULL;
      g_static_rec_mutex_free (qtmr->task_mutex);
      break;
    default:
      break;
  }
  return ret;
}

Exemplo n.º 2

Arquivo: gstdebugutils.c Projeto: BigBrother-International/gstreamer

static void
debug_dump_pad (GstPad * pad, const gchar * color_name,
    const gchar * element_name, GstDebugGraphDetails details, GString * str,
    const gint indent)
{
  GstPadTemplate *pad_templ;
  GstPadPresence presence;
  gchar *pad_name;
  const gchar *style_name;
  const gchar *spc = &spaces[MAX (sizeof (spaces) - (1 + indent * 2), 0)];

  pad_name = debug_dump_make_object_name (GST_OBJECT (pad));

  /* pad availability */
  style_name = "filled,solid";
  if ((pad_templ = gst_pad_get_pad_template (pad))) {
    presence = GST_PAD_TEMPLATE_PRESENCE (pad_templ);
    gst_object_unref (pad_templ);
    if (presence == GST_PAD_SOMETIMES) {
      style_name = "filled,dotted";
    } else if (presence == GST_PAD_REQUEST) {
      style_name = "filled,dashed";
    }
  }
  if (details & GST_DEBUG_GRAPH_SHOW_STATES) {
    gchar pad_flags[4];
    const gchar *activation_mode = "-><";
    const gchar *task_mode = "";
    GstTask *task;

    GST_OBJECT_LOCK (pad);
    task = GST_PAD_TASK (pad);
    if (task) {
      switch (gst_task_get_state (task)) {
        case GST_TASK_STARTED:
          task_mode = "[T]";
          break;
        case GST_TASK_PAUSED:
          task_mode = "[t]";
          break;
        default:
          /* Invalid task state, ignoring */
          break;
      }
    }
    GST_OBJECT_UNLOCK (pad);

    /* check if pad flags */
    pad_flags[0] =
        GST_OBJECT_FLAG_IS_SET (pad, GST_PAD_FLAG_BLOCKED) ? 'B' : 'b';
    pad_flags[1] =
        GST_OBJECT_FLAG_IS_SET (pad, GST_PAD_FLAG_FLUSHING) ? 'F' : 'f';
    pad_flags[2] =
        GST_OBJECT_FLAG_IS_SET (pad, GST_PAD_FLAG_BLOCKING) ? 'B' : 'b';
    pad_flags[3] = '\0';

    g_string_append_printf (str,
        "%s  %s_%s [color=black, fillcolor=\"%s\", label=\"%s\\n[%c][%s]%s\", height=\"0.2\", style=\"%s\"];\n",
        spc, element_name, pad_name, color_name, GST_OBJECT_NAME (pad),
        activation_mode[pad->mode], pad_flags, task_mode, style_name);
  } else {
    g_string_append_printf (str,
        "%s  %s_%s [color=black, fillcolor=\"%s\", label=\"%s\", height=\"0.2\", style=\"%s\"];\n",
        spc, element_name, pad_name, color_name, GST_OBJECT_NAME (pad),
        style_name);
  }

  g_free (pad_name);
}