| /* |
| * 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_AV1_COMMON_QUANT_COMMON_H_ |
| #define AOM_AV1_COMMON_QUANT_COMMON_H_ |
| |
| #include "aom/aom_codec.h" |
| #include "av1/common/seg_common.h" |
| #include "av1/common/enums.h" |
| #include "av1/common/entropy.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #define MINQ 0 |
| #define MAXQ 255 |
| #define QINDEX_RANGE (MAXQ - MINQ + 1) |
| #define QINDEX_BITS 8 |
| // Total number of QM sets stored |
| #define QM_LEVEL_BITS 4 |
| #define NUM_QM_LEVELS (1 << QM_LEVEL_BITS) |
| /* Range of QMS is between first and last value, with offset applied to inter |
| * blocks*/ |
| #define DEFAULT_QM_Y 10 |
| #define DEFAULT_QM_U 11 |
| #define DEFAULT_QM_V 12 |
| #define DEFAULT_QM_FIRST 5 |
| #define DEFAULT_QM_LAST 9 |
| |
| struct AV1Common; |
| |
| int16_t av1_dc_quant_QTX(int qindex, int delta, aom_bit_depth_t bit_depth); |
| int16_t av1_ac_quant_QTX(int qindex, int delta, aom_bit_depth_t bit_depth); |
| |
| int av1_get_qindex(const struct segmentation *seg, int segment_id, |
| int base_qindex); |
| // Reduce the large number of quantizers to a smaller number of levels for which |
| // different matrices may be defined |
| static INLINE int aom_get_qmlevel(int qindex, int first, int last) { |
| return first + (qindex * (last + 1 - first)) / QINDEX_RANGE; |
| } |
| void av1_qm_init(struct AV1Common *cm); |
| const qm_val_t *av1_iqmatrix(struct AV1Common *cm, int qmlevel, int plane, |
| TX_SIZE tx_size); |
| const qm_val_t *av1_qmatrix(struct AV1Common *cm, int qmlevel, int plane, |
| TX_SIZE tx_size); |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #endif // AOM_AV1_COMMON_QUANT_COMMON_H_ |