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+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __IA_CSS_TNR_TYPES_H
+#define __IA_CSS_TNR_TYPES_H
+
+/** @file
+* CSS-API header file for Temporal Noise Reduction (TNR) parameters.
+*/
+
+/** Temporal Noise Reduction (TNR) configuration.
+ *
+ * When difference between current frame and previous frame is less than or
+ * equal to threshold, TNR works and current frame is mixed
+ * with previous frame.
+ * When difference between current frame and previous frame is greater
+ * than threshold, we judge motion is detected. Then, TNR does not work and
+ * current frame is outputted as it is.
+ * Therefore, when threshold_y and threshold_uv are set as 0, TNR can be disabled.
+ *
+ * ISP block: TNR1
+ * ISP1: TNR1 is used.
+ * ISP2: TNR1 is used.
+ */
+
+
+struct ia_css_tnr_config {
+ ia_css_u0_16 gain; /**< Interpolation ratio of current frame
+ and previous frame.
+ gain=0.0 -> previous frame is outputted.
+ gain=1.0 -> current frame is outputted.
+ u0.16, [0,65535],
+ default 32768(0.5), ineffective 65535(almost 1.0) */
+ ia_css_u0_16 threshold_y; /**< Threshold to enable interpolation of Y.
+ If difference between current frame and
+ previous frame is greater than threshold_y,
+ TNR for Y is disabled.
+ u0.16, [0,65535], default/ineffective 0 */
+ ia_css_u0_16 threshold_uv; /**< Threshold to enable interpolation of
+ U/V.
+ If difference between current frame and
+ previous frame is greater than threshold_uv,
+ TNR for UV is disabled.
+ u0.16, [0,65535], default/ineffective 0 */
+};
+
+
+#endif /* __IA_CSS_TNR_TYPES_H */
+
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