1/* 2* Copyright (c) 2016 The WebM project authors. All Rights Reserved. 3* 4* Use of this source code is governed by a BSD-style license 5* that can be found in the LICENSE file in the root of the source 6* tree. An additional intellectual property rights grant can be found 7* in the file PATENTS. All contributing project authors may 8* be found in the AUTHORS file in the root of the source tree. 9*/ 10 11#ifndef VPX_DSP_PSNR_H_ 12#define VPX_DSP_PSNR_H_ 13 14#include "vpx_scale/yv12config.h" 15 16#define MAX_PSNR 100.0 17 18#ifdef __cplusplus 19extern "C" { 20#endif 21 22typedef struct { 23 double psnr[4]; // total/y/u/v 24 uint64_t sse[4]; // total/y/u/v 25 uint32_t samples[4]; // total/y/u/v 26} PSNR_STATS; 27 28// TODO(dkovalev) change vpx_sse_to_psnr signature: double -> int64_t 29 30/*!\brief Converts SSE to PSNR 31* 32* Converts sum of squared errros (SSE) to peak signal-to-noise ratio (PNSR). 33* 34* \param[in] samples Number of samples 35* \param[in] peak Max sample value 36* \param[in] sse Sum of squared errors 37*/ 38double vpx_sse_to_psnr(double samples, double peak, double sse); 39int64_t vpx_get_y_sse(const YV12_BUFFER_CONFIG *a, const YV12_BUFFER_CONFIG *b); 40#if CONFIG_VP9_HIGHBITDEPTH 41int64_t vpx_highbd_get_y_sse(const YV12_BUFFER_CONFIG *a, 42 const YV12_BUFFER_CONFIG *b); 43void vpx_calc_highbd_psnr(const YV12_BUFFER_CONFIG *a, 44 const YV12_BUFFER_CONFIG *b, PSNR_STATS *psnr, 45 unsigned int bit_depth, unsigned int in_bit_depth); 46#endif 47void vpx_calc_psnr(const YV12_BUFFER_CONFIG *a, const YV12_BUFFER_CONFIG *b, 48 PSNR_STATS *psnr); 49 50double vpx_psnrhvs(const YV12_BUFFER_CONFIG *source, 51 const YV12_BUFFER_CONFIG *dest, double *phvs_y, 52 double *phvs_u, double *phvs_v, uint32_t bd, uint32_t in_bd); 53 54#ifdef __cplusplus 55} // extern "C" 56#endif 57#endif // VPX_DSP_PSNR_H_ 58