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 19 extern "C" { 20 #endif 21 22 typedef 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 */ 38 double vpx_sse_to_psnr(double samples, double peak, double sse); 39 int64_t vpx_get_y_sse(const YV12_BUFFER_CONFIG *a, const YV12_BUFFER_CONFIG *b); 40 #if CONFIG_VP9_HIGHBITDEPTH 41 int64_t vpx_highbd_get_y_sse(const YV12_BUFFER_CONFIG *a, 42 const YV12_BUFFER_CONFIG *b); 43 void 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 47 void vpx_calc_psnr(const YV12_BUFFER_CONFIG *a, const YV12_BUFFER_CONFIG *b, 48 PSNR_STATS *psnr); 49 50 double 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
