示例#1
0
static GstFlowReturn
gst_smpte_alpha_transform_frame (GstVideoFilter * vfilter,
    GstVideoFrame * in_frame, GstVideoFrame * out_frame)
{
  GstSMPTEAlpha *smpte = GST_SMPTE_ALPHA (vfilter);
  gdouble position;
  gint border;

  if (G_UNLIKELY (!smpte->process))
    goto not_negotiated;

  GST_OBJECT_LOCK (smpte);
  position = smpte->position;
  border = smpte->border;

  /* run the type specific filter code */
  smpte->process (smpte, in_frame, out_frame,
      smpte->mask, border, ((1 << smpte->depth) + border) * position);
  GST_OBJECT_UNLOCK (smpte);

  return GST_FLOW_OK;

  /* ERRORS */
not_negotiated:
  {
    GST_ELEMENT_ERROR (smpte, CORE, NEGOTIATION, (NULL),
        ("No input format negotiated"));
    return GST_FLOW_NOT_NEGOTIATED;
  }
}
示例#2
0
static GstFlowReturn
gst_smpte_alpha_transform (GstBaseTransform * trans, GstBuffer * in,
    GstBuffer * out)
{
  GstSMPTEAlpha *smpte = GST_SMPTE_ALPHA (trans);
  gdouble position;
  gint border;

  if (G_UNLIKELY (!smpte->process))
    goto not_negotiated;

  /* these are the propertis we update with only the object lock, others are
   * only updated with the TRANSFORM_LOCK. */
  GST_OBJECT_LOCK (smpte);
  position = smpte->position;
  border = smpte->border;
  GST_OBJECT_UNLOCK (smpte);

  /* run the type specific filter code */
  smpte->process (smpte, GST_BUFFER_DATA (in), GST_BUFFER_DATA (out),
      smpte->mask, smpte->width, smpte->height, border,
      ((1 << smpte->depth) + border) * position);

  return GST_FLOW_OK;

  /* ERRORS */
not_negotiated:
  {
    GST_ELEMENT_ERROR (smpte, CORE, NEGOTIATION, (NULL),
        ("No input format negotiated"));
    return GST_FLOW_NOT_NEGOTIATED;
  }
}