35 lines
1,005 B
C++
35 lines
1,005 B
C++
/*
|
|
* Copyright (c) 2014 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_INTERNAL_VPX_PSNR_H_
|
|
#define VPX_INTERNAL_VPX_PSNR_H_
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
// 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 (PNSR).
|
|
*
|
|
* \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);
|
|
|
|
#ifdef __cplusplus
|
|
} // extern "C"
|
|
#endif
|
|
|
|
#endif // VPX_INTERNAL_VPX_PSNR_H_
|