58 lines
1.9 KiB
C
58 lines
1.9 KiB
C
/*
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* Copyright (c) 2016 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef VPX_DSP_PSNR_H_
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#define VPX_DSP_PSNR_H_
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#include "vpx_scale/yv12config.h"
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#define MAX_PSNR 100.0
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct {
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double psnr[4]; // total/y/u/v
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uint64_t sse[4]; // total/y/u/v
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uint32_t samples[4]; // total/y/u/v
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} PSNR_STATS;
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// TODO(dkovalev) change vpx_sse_to_psnr signature: double -> int64_t
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/*!\brief Converts SSE to PSNR
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*
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* Converts sum of squared errros (SSE) to peak signal-to-noise ratio (PNSR).
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*
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* \param[in] samples Number of samples
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* \param[in] peak Max sample value
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* \param[in] sse Sum of squared errors
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*/
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double vpx_sse_to_psnr(double samples, double peak, double sse);
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int64_t vpx_get_y_sse(const YV12_BUFFER_CONFIG *a, const YV12_BUFFER_CONFIG *b);
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#if CONFIG_VP9_HIGHBITDEPTH
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int64_t vpx_highbd_get_y_sse(const YV12_BUFFER_CONFIG *a,
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const YV12_BUFFER_CONFIG *b);
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void vpx_calc_highbd_psnr(const YV12_BUFFER_CONFIG *a,
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const YV12_BUFFER_CONFIG *b, PSNR_STATS *psnr,
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unsigned int bit_depth, unsigned int in_bit_depth);
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#endif
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void vpx_calc_psnr(const YV12_BUFFER_CONFIG *a, const YV12_BUFFER_CONFIG *b,
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PSNR_STATS *psnr);
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double vpx_psnrhvs(const YV12_BUFFER_CONFIG *source,
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const YV12_BUFFER_CONFIG *dest, double *phvs_y,
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double *phvs_u, double *phvs_v, uint32_t bd, uint32_t in_bd);
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // VPX_DSP_PSNR_H_
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