C++ (Cpp) _connect_src_element Examples

Example #1

File: gstglsrcbin.c Project: mbouron/gst-plugins-bad

void
gst_gl_src_bin_finish_init_with_element (GstGLSrcBin * self,
    GstElement * element)
{
  g_return_if_fail (GST_IS_ELEMENT (element));

  self->src = element;

  if (!_connect_src_element (self)) {
    gst_object_unref (self->src);
    self->src = NULL;
  }
}

Example #2

File: gstglsrcbin.c Project: thaytan/gst-plugins-base

static GstStateChangeReturn
gst_gl_src_bin_change_state (GstElement * element, GstStateChange transition)
{
  GstGLSrcBin *self = GST_GL_SRC_BIN (element);
  GstGLSrcBinClass *klass = GST_GL_SRC_BIN_GET_CLASS (self);
  GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;

  GST_DEBUG ("changing state: %s => %s",
      gst_element_state_get_name (GST_STATE_TRANSITION_CURRENT (transition)),
      gst_element_state_get_name (GST_STATE_TRANSITION_NEXT (transition)));

  switch (transition) {
    case GST_STATE_CHANGE_NULL_TO_READY:
      if (!self->src) {
        if (klass->create_element)
          self->src = klass->create_element ();

        if (!self->src) {
          g_signal_emit (element,
              gst_gl_src_bin_signals[SIGNAL_CREATE_ELEMENT], 0, &self->src);
          if (self->src && g_object_is_floating (self->src))
            gst_object_ref_sink (self->src);
        }

        if (!self->src) {
          GST_ERROR_OBJECT (element, "Failed to retrieve element");
          return GST_STATE_CHANGE_FAILURE;
        }
        if (!_connect_src_element (self))
          return GST_STATE_CHANGE_FAILURE;
      }
      break;
    default:
      break;
  }

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

  switch (transition) {
    default:
      break;
  }

  return ret;
}

Example #3

File: gstglsrcbin.c Project: mbouron/gst-plugins-bad

static void
gst_gl_src_bin_set_property (GObject * object, guint prop_id,
    const GValue * value, GParamSpec * pspec)
{
  GstGLSrcBin *self = GST_GL_SRC_BIN (object);

  switch (prop_id) {
    case PROP_SRC:
    {
      GstElement *src = g_value_get_object (value);
      if (self->src)
        gst_bin_remove (GST_BIN (self), self->src);
      self->src = src;
      if (src)
        _connect_src_element (self);
      break;
    }
    default:
      if (self->src)
        g_object_set_property (G_OBJECT (self->src), pspec->name, value);
      break;
  }
}

Example #4

File: gstglsrcbin.c Project: thaytan/gst-plugins-base

/*
 * @src: (transfer full):
 */
static gboolean
gst_gl_src_bin_set_src (GstGLSrcBin * self, GstElement * src)
{
  g_return_val_if_fail (GST_IS_ELEMENT (src), FALSE);

  if (self->src) {
    gst_element_set_locked_state (self->src, TRUE);
    gst_bin_remove (GST_BIN (self), self->src);
    gst_element_set_state (self->src, GST_STATE_NULL);
    gst_object_unref (self->src);
    self->src = NULL;
  }
  self->src = src;

  if (src && g_object_is_floating (src))
    gst_object_ref_sink (src);

  if (src && !_connect_src_element (self)) {
    self->src = NULL;
    return FALSE;
  }

  return TRUE;
}