av1_noise_estimate.h (1360B)
1 /* 2 * Copyright (c) 2020, Alliance for Open Media. All rights reserved. 3 * 4 * This source code is subject to the terms of the BSD 2 Clause License and 5 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License 6 * was not distributed with this source code in the LICENSE file, you can 7 * obtain it at www.aomedia.org/license/software. If the Alliance for Open 8 * Media Patent License 1.0 was not distributed with this source code in the 9 * PATENTS file, you can obtain it at www.aomedia.org/license/patent. 10 */ 11 12 #ifndef AOM_AV1_ENCODER_AV1_NOISE_ESTIMATE_H_ 13 #define AOM_AV1_ENCODER_AV1_NOISE_ESTIMATE_H_ 14 15 #include "av1/encoder/block.h" 16 #include "aom_scale/yv12config.h" 17 18 #ifdef __cplusplus 19 extern "C" { 20 #endif 21 22 #define MAX_VAR_HIST_BINS 20 23 24 typedef enum noise_level { kLowLow, kLow, kMedium, kHigh } NOISE_LEVEL; 25 26 typedef struct noise_estimate { 27 int enabled; 28 NOISE_LEVEL level; 29 int value; 30 int thresh; 31 int adapt_thresh; 32 int count; 33 int last_w; 34 int last_h; 35 int num_frames_estimate; 36 } NOISE_ESTIMATE; 37 38 struct AV1_COMP; 39 40 void av1_noise_estimate_init(NOISE_ESTIMATE *const ne, int width, int height); 41 42 NOISE_LEVEL av1_noise_estimate_extract_level(NOISE_ESTIMATE *const ne); 43 44 void av1_update_noise_estimate(struct AV1_COMP *const cpi); 45 46 #ifdef __cplusplus 47 } // extern "C" 48 #endif 49 50 #endif // AOM_AV1_ENCODER_AV1_NOISE_ESTIMATE_H_