libvpx: Pull from upstream

source/libvpx/vp9/encoder/vp9_denoiser.h

Index: source/libvpx/vp9/encoder/vp9_denoiser.h
===================================================================
--- source/libvpx/vp9/encoder/vp9_denoiser.h	(revision 0)
+++ source/libvpx/vp9/encoder/vp9_denoiser.h	(revision 0)
@@ -0,0 +1,52 @@
+/*
+ *  Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef VP9_ENCODER_DENOISER_H_
+#define VP9_ENCODER_DENOISER_H_
+
+#include "vp9/encoder/vp9_block.h"
+#include "vpx_scale/yv12config.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+enum vp9_denoiser_decision {
+  COPY_BLOCK,
+  FILTER_BLOCK
+};
+
+typedef struct vp9_denoiser {
+  YV12_BUFFER_CONFIG running_avg_y[MAX_REF_FRAMES];
+  YV12_BUFFER_CONFIG mc_running_avg_y;
+} VP9_DENOISER;
+
+void vp9_denoiser_update_frame_info(VP9_DENOISER *denoiser,
+                                    YV12_BUFFER_CONFIG src,
+                                    FRAME_TYPE frame_type,
+                                    int refresh_alt_ref_frame,
+                                    int refresh_golden_frame,
+                                    int refresh_last_frame);
+
+void vp9_denoiser_denoise(VP9_DENOISER *denoiser, MACROBLOCK *mb,
+                          int mi_row, int mi_col, BLOCK_SIZE bs);
+
+void vp9_denoiser_update_frame_stats();
+
+int vp9_denoiser_alloc(VP9_DENOISER *denoiser, int width, int height,
+                       int ssx, int ssy, int border);
+
+void vp9_denoiser_free(VP9_DENOISER *denoiser);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP9_ENCODER_DENOISER_H_