C++ (Cpp) GST_BURN Examples

Example #1

File: gstburn.c Project: Distrotech/gst-plugins-bad

static void
gst_burn_set_property (GObject * object, guint prop_id,
    const GValue * value, GParamSpec * pspec)
{
  GstBurn *filter = GST_BURN (object);

  switch (prop_id) {
    case PROP_ADJUSTMENT:
      filter->adjustment = g_value_get_uint (value);
      break;
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
      break;
  }
}

Example #2

File: gstburn.c Project: drothlis/gst-plugins-bad

static void
gst_burn_get_property (GObject * object, guint prop_id,
    GValue * value, GParamSpec * pspec)
{
  GstBurn *filter = GST_BURN (object);

  GST_OBJECT_LOCK (filter);
  switch (prop_id) {
    case PROP_SILENT:
      g_value_set_boolean (value, filter->silent);
      break;
    case PROP_ADJUSTMENT:
      g_value_set_uint (value, filter->adjustment);
      break;
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
      break;
  }
  GST_OBJECT_UNLOCK (filter);
}

Example #3

File: gstburn.c Project: drothlis/gst-plugins-bad

/* Actual processing. */
static GstFlowReturn
gst_burn_transform_frame (GstVideoFilter * vfilter,
    GstVideoFrame * in_frame, GstVideoFrame * out_frame)
{
  GstBurn *filter = GST_BURN (vfilter);
  gint video_size, adjustment, width, height;
  guint32 *src, *dest;
  GstClockTime timestamp;
  gint64 stream_time;

  src = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0);
  dest = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0);

  width = GST_VIDEO_FRAME_WIDTH (in_frame);
  height = GST_VIDEO_FRAME_HEIGHT (in_frame);

  video_size = width * height;

  /* GstController: update the properties */
  timestamp = GST_BUFFER_TIMESTAMP (in_frame->buffer);
  stream_time =
      gst_segment_to_stream_time (&GST_BASE_TRANSFORM (filter)->segment,
      GST_FORMAT_TIME, timestamp);

  GST_DEBUG_OBJECT (filter, "sync to %" GST_TIME_FORMAT,
      GST_TIME_ARGS (timestamp));

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

  GST_OBJECT_LOCK (filter);
  adjustment = filter->adjustment;
  GST_OBJECT_UNLOCK (filter);

  /*** Now the image processing work.... ***/
  orc_gaudi_burn (dest, src, adjustment, video_size);

  return GST_FLOW_OK;
}