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Diffstat (limited to 'third_party/aom/aom_dsp/ssim.h')
-rw-r--r-- | third_party/aom/aom_dsp/ssim.h | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/third_party/aom/aom_dsp/ssim.h b/third_party/aom/aom_dsp/ssim.h new file mode 100644 index 0000000000..fb92556a8c --- /dev/null +++ b/third_party/aom/aom_dsp/ssim.h @@ -0,0 +1,104 @@ +/* + * 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_ |