| /* |
| * Copyright (c) 2016, Alliance for Open Media. All rights reserved |
| * |
| * This source code is subject to the terms of the BSD 2 Clause License and |
| * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License |
| * was not distributed with this source code in the LICENSE file, you can |
| * obtain it at www.aomedia.org/license/software. If the Alliance for Open |
| * Media Patent License 1.0 was not distributed with this source code in the |
| * PATENTS file, you can obtain it at www.aomedia.org/license/patent. |
| */ |
| |
| #ifndef AOM_AOM_DSP_SSIM_H_ |
| #define AOM_AOM_DSP_SSIM_H_ |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #include "config/aom_config.h" |
| |
| #if CONFIG_INTERNAL_STATS |
| #include "aom_scale/yv12config.h" |
| |
| // metrics used for calculating ssim, ssim2, dssim, and ssimc |
| typedef struct { |
| // source sum ( over 8x8 region ) |
| uint32_t sum_s; |
| |
| // reference sum (over 8x8 region ) |
| uint32_t sum_r; |
| |
| // source sum squared ( over 8x8 region ) |
| uint32_t sum_sq_s; |
| |
| // reference sum squared (over 8x8 region ) |
| uint32_t sum_sq_r; |
| |
| // sum of source times reference (over 8x8 region) |
| uint32_t sum_sxr; |
| |
| // calculated ssim score between source and reference |
| double ssim; |
| } Ssimv; |
| |
| // metrics collected on a frame basis |
| typedef struct { |
| // ssim consistency error metric ( see code for explanation ) |
| double ssimc; |
| |
| // standard ssim |
| double ssim; |
| |
| // revised ssim ( see code for explanation) |
| double ssim2; |
| |
| // ssim restated as an error metric like sse |
| double dssim; |
| |
| // dssim converted to decibels |
| double dssimd; |
| |
| // ssimc converted to decibels |
| double ssimcd; |
| } Metrics; |
| |
| double aom_get_ssim_metrics(uint8_t *img1, int img1_pitch, uint8_t *img2, |
| int img2_pitch, int width, int height, Ssimv *sv2, |
| Metrics *m, int do_inconsistency); |
| |
| void aom_lowbd_calc_ssim(const YV12_BUFFER_CONFIG *source, |
| const YV12_BUFFER_CONFIG *dest, double *weight, |
| double *fast_ssim); |
| |
| double aom_calc_fastssim(const YV12_BUFFER_CONFIG *source, |
| const YV12_BUFFER_CONFIG *dest, double *ssim_y, |
| double *ssim_u, double *ssim_v, uint32_t bd, |
| uint32_t in_bd); |
| |
| #if CONFIG_AV1_HIGHBITDEPTH |
| void aom_highbd_calc_ssim(const YV12_BUFFER_CONFIG *source, |
| const YV12_BUFFER_CONFIG *dest, double *weight, |
| uint32_t bd, uint32_t in_bd, double *fast_ssim); |
| #endif // CONFIG_AV1_HIGHBITDEPTH |
| |
| void aom_calc_ssim(const YV12_BUFFER_CONFIG *orig, |
| const YV12_BUFFER_CONFIG *recon, const uint32_t bit_depth, |
| const uint32_t in_bit_depth, int is_hbd, double *weight, |
| double *frame_ssim2); |
| #endif // CONFIG_INTERNAL_STATS |
| |
| double aom_ssim2(const uint8_t *img1, const uint8_t *img2, int stride_img1, |
| int stride_img2, int width, int height); |
| |
| #if CONFIG_AV1_HIGHBITDEPTH |
| double aom_highbd_ssim2(const uint8_t *img1, const uint8_t *img2, |
| int stride_img1, int stride_img2, int width, int height, |
| uint32_t bd, uint32_t shift); |
| #endif // CONFIG_AV1_HIGHBITDEPTH |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #endif // AOM_AOM_DSP_SSIM_H_ |