C++ (Cpp) gst_gdk_pixbuf_overlay_update_composition примеры использования

Пример #1

Файл: gstgdkpixbufoverlay.c Проект: hizukiayaka/gst-plugins-good

static void
gst_gdk_pixbuf_overlay_before_transform (GstBaseTransform * trans,
    GstBuffer * outbuf)
{
  GstClockTime stream_time;
  GstGdkPixbufOverlay *overlay = GST_GDK_PIXBUF_OVERLAY (trans);
  gboolean set_passthrough = FALSE;

  stream_time = gst_segment_to_stream_time (&trans->segment, GST_FORMAT_TIME,
      GST_BUFFER_TIMESTAMP (outbuf));

  if (GST_CLOCK_TIME_IS_VALID (stream_time))
    gst_object_sync_values (GST_OBJECT (trans), stream_time);

  /* now properties have been sync'ed; maybe need to update composition */
  GST_OBJECT_LOCK (overlay);
  if (G_UNLIKELY (overlay->update_composition)) {
    gst_gdk_pixbuf_overlay_update_composition (overlay);
    overlay->update_composition = FALSE;
    set_passthrough = TRUE;
  }
  GST_OBJECT_UNLOCK (overlay);

  /* determine passthrough mode so the buffer is writable if needed
   * when passed into _transform_ip */
  if (G_UNLIKELY (set_passthrough))
    gst_base_transform_set_passthrough (trans, overlay->comp == NULL);
}

Пример #2

Файл: gstgdkpixbufoverlay.c Проект: pli3/gst-plugins-good

static GstFlowReturn
gst_gdk_pixbuf_overlay_transform_ip (GstBaseTransform * trans, GstBuffer * buf)
{
  GstGdkPixbufOverlay *overlay = GST_GDK_PIXBUF_OVERLAY (trans);

  GST_OBJECT_LOCK (overlay);

  if (G_UNLIKELY (overlay->update_composition)) {
    gst_gdk_pixbuf_overlay_update_composition (overlay);
    overlay->update_composition = FALSE;
  }

  GST_OBJECT_UNLOCK (overlay);

  if (overlay->comp != NULL)
    gst_video_overlay_composition_blend (overlay->comp, buf);

  return GST_FLOW_OK;
}

Пример #3

Файл: gstgdkpixbufoverlay.c Проект: BigBrother-International/gst-plugins-good

static GstFlowReturn
gst_gdk_pixbuf_overlay_transform_frame_ip (GstVideoFilter * filter,
    GstVideoFrame * frame)
{
  GstGdkPixbufOverlay *overlay = GST_GDK_PIXBUF_OVERLAY (filter);

  GST_OBJECT_LOCK (overlay);

  if (G_UNLIKELY (overlay->update_composition)) {
    gst_gdk_pixbuf_overlay_update_composition (overlay);
    overlay->update_composition = FALSE;
  }

  GST_OBJECT_UNLOCK (overlay);

  if (overlay->comp != NULL)
    gst_video_overlay_composition_blend (overlay->comp, frame);

  return GST_FLOW_OK;
}