AOMedia AV1 Codec: av1/encoder/palette.h Source File

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palette.h
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1 /*
2 * Copyright (c) 2016, 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
15 #ifndef AOM_AV1_ENCODER_PALETTE_H_
16 #define AOM_AV1_ENCODER_PALETTE_H_
17
18 #include "av1/common/blockd.h"
19
20 #ifdef __cplusplus
21 extern "C" {
22 #endif
23
24 struct AV1_COMP;
25 struct PICK_MODE_CONTEXT;
26 struct macroblock;
27
29 #define AV1_K_MEANS_RENAME(func, dim) func##_dim##dim##_c
30
31 void AV1_K_MEANS_RENAME(av1_k_means, 1)(const int *data, int *centroids,
32 uint8_t *indices, int n, int k,
33 int max_itr);
34 void AV1_K_MEANS_RENAME(av1_k_means, 2)(const int *data, int *centroids,
35 uint8_t *indices, int n, int k,
36 int max_itr);
54 static INLINE void av1_calc_indices(const int *data, const int *centroids,
55 uint8_t *indices, int n, int k, int dim) {
56 assert(n > 0);
57 assert(k > 0);
58 if (dim == 1) {
59 av1_calc_indices_dim1(data, centroids, indices, n, k);
60 } else if (dim == 2) {
61 av1_calc_indices_dim2(data, centroids, indices, n, k);
62 } else {
63 assert(0 && "Untemplated k means dimension");
64 }
65 }
66
87 static INLINE void av1_k_means(const int *data, int *centroids,
88 uint8_t *indices, int n, int k, int dim,
89 int max_itr) {
90 assert(n > 0);
91 assert(k > 0);
92 if (dim == 1) {
93 AV1_K_MEANS_RENAME(av1_k_means, 1)(data, centroids, indices, n, k, max_itr);
94 } else if (dim == 2) {
95 AV1_K_MEANS_RENAME(av1_k_means, 2)(data, centroids, indices, n, k, max_itr);
96 } else {
97 assert(0 && "Untemplated k means dimension");
98 }
99 }
100
113 int av1_remove_duplicates(int *centroids, int num_centroids);
114
130 int av1_index_color_cache(const uint16_t *color_cache, int n_cache,
131 const uint16_t *colors, int n_colors,
132 uint8_t *cache_color_found, int *out_cache_colors);
133
146 int av1_get_palette_delta_bits_v(const PALETTE_MODE_INFO *const pmi,
147 int bit_depth, int *zero_count, int *min_bits);
148
160 int av1_palette_color_cost_y(const PALETTE_MODE_INFO *const pmi,
161 const uint16_t *color_cache, int n_cache,
162 int bit_depth);
163
175 int av1_palette_color_cost_uv(const PALETTE_MODE_INFO *const pmi,
176 const uint16_t *color_cache, int n_cache,
177 int bit_depth);
178
185 void av1_rd_pick_palette_intra_sby(
186 const struct AV1_COMP *cpi, struct macroblock *x, BLOCK_SIZE bsize,
187 int dc_mode_cost, MB_MODE_INFO *best_mbmi, uint8_t *best_palette_color_map,
188 int64_t *best_rd, int64_t *best_model_rd, int *rate, int *rate_tokenonly,
189 int64_t *distortion, int *skippable, int *beat_best_rd,
190 struct PICK_MODE_CONTEXT *ctx, uint8_t *best_blk_skip,
191 uint8_t *tx_type_map);
192
199 void av1_rd_pick_palette_intra_sbuv(const struct AV1_COMP *cpi,
200 struct macroblock *x, int dc_mode_cost,
201 uint8_t *best_palette_color_map,
202 MB_MODE_INFO *const best_mbmi,
203 int64_t *best_rd, int *rate,
204 int *rate_tokenonly, int64_t *distortion,
205 int *skippable);
206
209 void av1_restore_uv_color_map(const struct AV1_COMP *cpi, struct macroblock *x);
210
211 #ifdef __cplusplus
212 } // extern "C"
213 #endif
214
215 #endif // AOM_AV1_ENCODER_PALETTE_H_
av1_calc_indices
static void av1_calc_indices(const int *data, const int *centroids, uint8_t *indices, int n, int k, int dim)
Calculates the cluster to which each data point belong.
Definition: palette.h:54
av1_rd_pick_palette_intra_sby
void av1_rd_pick_palette_intra_sby(const struct AV1_COMP *cpi, struct macroblock *x, BLOCK_SIZE bsize, int dc_mode_cost, MB_MODE_INFO *best_mbmi, uint8_t *best_palette_color_map, int64_t *best_rd, int64_t *best_model_rd, int *rate, int *rate_tokenonly, int64_t *distortion, int *skippable, int *beat_best_rd, struct PICK_MODE_CONTEXT *ctx, uint8_t *best_blk_skip, uint8_t *tx_type_map)
Search for the best palette in the luma plane.
av1_palette_color_cost_y
int av1_palette_color_cost_y(const PALETTE_MODE_INFO *const pmi, const uint16_t *color_cache, int n_cache, int bit_depth)
Gets the rate cost for transmitting luma palette color values.
Definition: palette.c:125
av1_index_color_cache
int av1_index_color_cache(const uint16_t *color_cache, int n_cache, const uint16_t *colors, int n_colors, uint8_t *cache_color_found, int *out_cache_colors)
Checks what colors are in the color cache.
Definition: palette.c:78
av1_remove_duplicates
int av1_remove_duplicates(int *centroids, int num_centroids)
Removes duplicated centroid indices.
Definition: palette.c:38
av1_k_means
static void av1_k_means(const int *data, int *centroids, uint8_t *indices, int n, int k, int dim, int max_itr)
Performs k-means cluster on the data.
Definition: palette.h:87
av1_rd_pick_palette_intra_sbuv
void av1_rd_pick_palette_intra_sbuv(const struct AV1_COMP *cpi, struct macroblock *x, int dc_mode_cost, uint8_t *best_palette_color_map, MB_MODE_INFO *const best_mbmi, int64_t *best_rd, int *rate, int *rate_tokenonly, int64_t *distortion, int *skippable)
Search for the best palette in the chroma plane.
av1_get_palette_delta_bits_v
int av1_get_palette_delta_bits_v(const PALETTE_MODE_INFO *const pmi, int bit_depth, int *zero_count, int *min_bits)
Gets the rate cost for each delta-encoding v palette.
Definition: palette.c:106
av1_palette_color_cost_uv
int av1_palette_color_cost_uv(const PALETTE_MODE_INFO *const pmi, const uint16_t *color_cache, int n_cache, int bit_depth)
Gets the rate cost for transmitting luma palette chroma values.
Definition: palette.c:139
av1_restore_uv_color_map
void av1_restore_uv_color_map(const struct AV1_COMP *cpi, struct macroblock *x)
Resets palette color map for chroma channels.
AV1_COMP
Top level encoder structure.
Definition: encoder.h:2095
MB_MODE_INFO
Stores the prediction/txfm mode of the current coding block.
Definition: blockd.h:216
macroblock
Encoder's parameters related to the current coding block.
Definition: block.h:846