1 files changed, 54 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/vpx_dsp/psnr.h b/media/libvpx/libvpx/vpx_dsp/psnr.h
new file mode 100644
index 0000000000..7c57aa429f
--- /dev/null
+++ b/media/libvpx/libvpx/vpx_dsp/psnr.h
@@ -0,0 +1,54 @@
+/*
+ *  Copyright (c) 2016 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 VPX_VPX_DSP_PSNR_H_
+#define VPX_VPX_DSP_PSNR_H_
+
+#include "vpx_scale/yv12config.h"
+#include "vpx/vpx_encoder.h"
+
+#define MAX_PSNR 100.0
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct vpx_psnr_pkt PSNR_STATS;
+
+// TODO(dkovalev) change vpx_sse_to_psnr signature: double -> int64_t
+
+/*!\brief Converts SSE to PSNR
+ *
+ * Converts sum of squared errros (SSE) to peak signal-to-noise ratio (PSNR).
+ *
+ * \param[in]    samples       Number of samples
+ * \param[in]    peak          Max sample value
+ * \param[in]    sse           Sum of squared errors
+ */
+double vpx_sse_to_psnr(double samples, double peak, double sse);
+int64_t vpx_get_y_sse(const YV12_BUFFER_CONFIG *a, const YV12_BUFFER_CONFIG *b);
+#if CONFIG_VP9_HIGHBITDEPTH
+int64_t vpx_highbd_get_y_sse(const YV12_BUFFER_CONFIG *a,
+                             const YV12_BUFFER_CONFIG *b);
+void vpx_calc_highbd_psnr(const YV12_BUFFER_CONFIG *a,
+                          const YV12_BUFFER_CONFIG *b, PSNR_STATS *psnr,
+                          unsigned int bit_depth, unsigned int in_bit_depth);
+#endif
+void vpx_calc_psnr(const YV12_BUFFER_CONFIG *a, const YV12_BUFFER_CONFIG *b,
+                   PSNR_STATS *psnr);
+
+double vpx_psnrhvs(const YV12_BUFFER_CONFIG *source,
+                   const YV12_BUFFER_CONFIG *dest, double *phvs_y,
+                   double *phvs_u, double *phvs_v, uint32_t bd, uint32_t in_bd);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+#endif  // VPX_VPX_DSP_PSNR_H_