| /* |
| * Copyright (c) 2021, Alliance for Open Media. All rights reserved |
| * |
| * This source code is subject to the terms of the BSD 3-Clause Clear License |
| * and the Alliance for Open Media Patent License 1.0. If the BSD 3-Clause Clear |
| * License was not distributed with this source code in the LICENSE file, you |
| * can obtain it at aomedia.org/license/software-license/bsd-3-c-c/. 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 |
| * aomedia.org/license/patent-license/. |
| */ |
| |
| #ifndef AOM_AV1_COMMON_SEG_COMMON_H_ |
| #define AOM_AV1_COMMON_SEG_COMMON_H_ |
| |
| #include "aom_dsp/prob.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #define MAX_SEGMENTS 8 |
| #define SEG_TREE_PROBS (MAX_SEGMENTS - 1) |
| |
| #define SEG_TEMPORAL_PRED_CTXS 3 |
| #define SPATIAL_PREDICTION_PROBS 3 |
| |
| enum { |
| SEG_LVL_ALT_Q, // Use alternate Quantizer .... |
| SEG_LVL_ALT_LF_Y_V, // Use alternate loop filter value on y plane vertical |
| SEG_LVL_ALT_LF_Y_H, // Use alternate loop filter value on y plane horizontal |
| SEG_LVL_ALT_LF_U, // Use alternate loop filter value on u plane |
| SEG_LVL_ALT_LF_V, // Use alternate loop filter value on v plane |
| #if !CONFIG_NEW_REF_SIGNALING |
| SEG_LVL_REF_FRAME, // Optional Segment reference frame |
| #endif // !CONFIG_NEW_REF_SIGNALING |
| SEG_LVL_SKIP, // Optional Segment (0,0) + skip mode |
| SEG_LVL_GLOBALMV, |
| SEG_LVL_MAX |
| } UENUM1BYTE(SEG_LVL_FEATURES); |
| |
| struct segmentation { |
| uint8_t enabled; |
| uint8_t update_map; |
| uint8_t update_data; |
| uint8_t temporal_update; |
| |
| int16_t feature_data[MAX_SEGMENTS][SEG_LVL_MAX]; |
| unsigned int feature_mask[MAX_SEGMENTS]; |
| int last_active_segid; // The highest numbered segment id that has some |
| // enabled feature. |
| uint8_t segid_preskip; // Whether the segment id will be read before the |
| // skip syntax element. |
| // 1: the segment id will be read first. |
| // 0: the skip syntax element will be read first. |
| }; |
| |
| struct segmentation_probs { |
| aom_cdf_prob tree_cdf[CDF_SIZE(MAX_SEGMENTS)]; |
| aom_cdf_prob pred_cdf[SEG_TEMPORAL_PRED_CTXS][CDF_SIZE(2)]; |
| aom_cdf_prob spatial_pred_seg_cdf[SPATIAL_PREDICTION_PROBS] |
| [CDF_SIZE(MAX_SEGMENTS)]; |
| }; |
| |
| static INLINE int segfeature_active(const struct segmentation *seg, |
| int segment_id, |
| SEG_LVL_FEATURES feature_id) { |
| return seg->enabled && (seg->feature_mask[segment_id] & (1 << feature_id)); |
| } |
| |
| static INLINE void segfeatures_copy(struct segmentation *dst, |
| const struct segmentation *src) { |
| int i, j; |
| for (i = 0; i < MAX_SEGMENTS; i++) { |
| dst->feature_mask[i] = src->feature_mask[i]; |
| for (j = 0; j < SEG_LVL_MAX; j++) { |
| dst->feature_data[i][j] = src->feature_data[i][j]; |
| } |
| } |
| dst->segid_preskip = src->segid_preskip; |
| dst->last_active_segid = src->last_active_segid; |
| } |
| |
| void av1_clearall_segfeatures(struct segmentation *seg); |
| |
| void av1_enable_segfeature(struct segmentation *seg, int segment_id, |
| SEG_LVL_FEATURES feature_id); |
| |
| void av1_calculate_segdata(struct segmentation *seg); |
| |
| int av1_seg_feature_data_max(SEG_LVL_FEATURES feature_id); |
| |
| int av1_is_segfeature_signed(SEG_LVL_FEATURES feature_id); |
| |
| void av1_set_segdata(struct segmentation *seg, int segment_id, |
| SEG_LVL_FEATURES feature_id, int seg_data); |
| |
| static INLINE int get_segdata(const struct segmentation *seg, int segment_id, |
| SEG_LVL_FEATURES feature_id) { |
| return seg->feature_data[segment_id][feature_id]; |
| } |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #endif // AOM_AV1_COMMON_SEG_COMMON_H_ |