C++ (Cpp) GstVdpDevice::vdp_output_surface_get_bits_native Exemples

Exemple #1

gboolean
gst_vdp_output_buffer_download (GstVdpOutputBuffer * output_buf,
    GstBuffer * outbuf, GError ** error)
{
  guint8 *data[1];
  guint32 stride[1];
  GstVdpDevice *device;
  VdpOutputSurface surface;
  VdpStatus status;

  g_return_val_if_fail (GST_IS_VDP_OUTPUT_BUFFER (output_buf), FALSE);

  switch (output_buf->rgba_format) {
    case VDP_RGBA_FORMAT_A8:
    {
      stride[0] = output_buf->width;
      break;
    }

    case VDP_RGBA_FORMAT_B10G10R10A2:
    case VDP_RGBA_FORMAT_B8G8R8A8:
    case VDP_RGBA_FORMAT_R10G10B10A2:
    case VDP_RGBA_FORMAT_R8G8B8A8:
    {
      stride[0] = output_buf->width * 4;
      break;
    }

    default:
      return FALSE;
  }

  device = output_buf->device;
  surface = output_buf->surface;
  data[0] = GST_BUFFER_DATA (outbuf);

  GST_LOG_OBJECT (output_buf, "Entering vdp_output_surface_get_bits_native");
  status =
      device->vdp_output_surface_get_bits_native (surface, NULL, (void *) data,
      stride);
  GST_LOG_OBJECT (output_buf,
      "Got status %d from vdp_output_get_bits_native", status);

  if (G_UNLIKELY (status != VDP_STATUS_OK)) {
    g_set_error (error, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_READ,
        "Couldn't get data from vdpau, error returned from vdpau was: %s",
        device->vdp_get_error_string (status));
    return FALSE;
  }

  return TRUE;
}