1 /*
2  *  Copyright 2013 The LibYuv 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 // Get SSIM for video sequence. Assuming RAW 4:2:0 Y:Cb:Cr format
12 
13 #ifndef UTIL_SSIM_H_
14 #define UTIL_SSIM_H_
15 
16 #include <math.h>  // For log10()
17 
18 #ifdef __cplusplus
19 extern "C" {
20 #endif
21 
22 #if !defined(INT_TYPES_DEFINED) && !defined(UINT8_TYPE_DEFINED)
23 typedef unsigned char uint8_t;
24 #define UINT8_TYPE_DEFINED
25 #endif
26 
27 double CalcSSIM(const uint8_t* org,
28                 const uint8_t* rec,
29                 const int image_width,
30                 const int image_height);
31 
32 double CalcLSSIM(double ssim);
33 
34 #ifdef __cplusplus
35 }  // extern "C"
36 #endif
37 
38 #endif  // UTIL_SSIM_H_
39