Пример #1
0
gboolean
gtk_gst_widget_set_caps (GtkGstWidget * widget, GstCaps * caps)
{
  GMainContext *main_context = g_main_context_default ();
  GstVideoInfo v_info;

  g_return_val_if_fail (GTK_IS_GST_WIDGET (widget), FALSE);
  g_return_val_if_fail (GST_IS_CAPS (caps), FALSE);
  g_return_val_if_fail (gst_caps_is_fixed (caps), FALSE);

  if (widget->priv->caps && gst_caps_is_equal_fixed (widget->priv->caps, caps))
    return TRUE;

  if (!gst_video_info_from_caps (&v_info, caps))
    return FALSE;

  /* FIXME: support other formats */
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
  g_return_val_if_fail (GST_VIDEO_INFO_FORMAT (&v_info) ==
      GST_VIDEO_FORMAT_BGRA || GST_VIDEO_INFO_FORMAT (&v_info) ==
      GST_VIDEO_FORMAT_BGRx, FALSE);
#else
  g_return_val_if_fail (GST_VIDEO_INFO_FORMAT (&v_info) ==
      GST_VIDEO_FORMAT_ARGB || GST_VIDEO_INFO_FORMAT (&v_info) ==
      GST_VIDEO_FORMAT_xRGB, FALSE);
#endif

  g_mutex_lock (&widget->priv->lock);

  if (!_calculate_par (widget, &v_info)) {
    g_mutex_unlock (&widget->priv->lock);
    return FALSE;
  }

  gst_caps_replace (&widget->priv->caps, caps);
  widget->priv->v_info = v_info;
  widget->priv->negotiated = TRUE;

  g_mutex_unlock (&widget->priv->lock);

  gtk_widget_queue_resize (GTK_WIDGET (widget));

  g_main_context_invoke (main_context, (GSourceFunc) _queue_resize, widget);

  return TRUE;
}
Пример #2
0
gboolean
gtk_gst_base_widget_set_format (GtkGstBaseWidget * widget,
    GstVideoInfo * v_info)
{
  GTK_GST_BASE_WIDGET_LOCK (widget);

  if (gst_video_info_is_equal (&widget->v_info, v_info)) {
    GTK_GST_BASE_WIDGET_UNLOCK (widget);
    return TRUE;
  }

  if (!_calculate_par (widget, v_info)) {
    GTK_GST_BASE_WIDGET_UNLOCK (widget);
    return FALSE;
  }

  widget->pending_resize = TRUE;
  widget->pending_v_info = *v_info;

  GTK_GST_BASE_WIDGET_UNLOCK (widget);

  return TRUE;
}