aom/vp10/common/quant_common.h

45 строки
1.3 KiB
C

/*
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef VP10_COMMON_QUANT_COMMON_H_
#define VP10_COMMON_QUANT_COMMON_H_
#include "vpx/vpx_codec.h"
#include "vp10/common/seg_common.h"
#ifdef __cplusplus
extern "C" {
#endif
#define MINQ 0
#define MAXQ 255
#define QINDEX_RANGE (MAXQ - MINQ + 1)
#define QINDEX_BITS 8
int16_t vp10_dc_quant(int qindex, int delta, vpx_bit_depth_t bit_depth);
int16_t vp10_ac_quant(int qindex, int delta, vpx_bit_depth_t bit_depth);
int vp10_get_qindex(const struct segmentation *seg, int segment_id,
int base_qindex);
#if CONFIG_NEW_QUANT
#define NUQ_KNOTS 3
void get_dequant_val_nuq(int q, int lossless, int band,
tran_low_t *dq, tran_low_t *cumbins);
tran_low_t dequant_abscoeff_nuq(int v, int q, const tran_low_t *dq);
tran_low_t dequant_coeff_nuq(int v, int q, const tran_low_t *dq);
#endif // CONFIG_NEW_QUANT
#ifdef __cplusplus
} // extern "C"
#endif
#endif // VP10_COMMON_QUANT_COMMON_H_