shithub: libvpx

ref: 1669bde7610c6c94e379be1dfb610a0acd0dcd8c
dir: /vp9/encoder/vp9_quantize.h/

/*
 *  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 VPX_VP9_ENCODER_VP9_QUANTIZE_H_
#define VPX_VP9_ENCODER_VP9_QUANTIZE_H_

#include "./vpx_config.h"
#include "vp9/encoder/vp9_block.h"

#ifdef __cplusplus
extern "C" {
#endif

typedef struct {
  DECLARE_ALIGNED(16, int16_t, y_quant[QINDEX_RANGE][8]);
  DECLARE_ALIGNED(16, int16_t, y_quant_shift[QINDEX_RANGE][8]);
  DECLARE_ALIGNED(16, int16_t, y_zbin[QINDEX_RANGE][8]);
  DECLARE_ALIGNED(16, int16_t, y_round[QINDEX_RANGE][8]);

  // TODO(jingning): in progress of re-working the quantization. will decide
  // if we want to deprecate the current use of y_quant.
  DECLARE_ALIGNED(16, int16_t, y_quant_fp[QINDEX_RANGE][8]);
  DECLARE_ALIGNED(16, int16_t, uv_quant_fp[QINDEX_RANGE][8]);
  DECLARE_ALIGNED(16, int16_t, y_round_fp[QINDEX_RANGE][8]);
  DECLARE_ALIGNED(16, int16_t, uv_round_fp[QINDEX_RANGE][8]);

  DECLARE_ALIGNED(16, int16_t, uv_quant[QINDEX_RANGE][8]);
  DECLARE_ALIGNED(16, int16_t, uv_quant_shift[QINDEX_RANGE][8]);
  DECLARE_ALIGNED(16, int16_t, uv_zbin[QINDEX_RANGE][8]);
  DECLARE_ALIGNED(16, int16_t, uv_round[QINDEX_RANGE][8]);
} QUANTS;

void vp9_regular_quantize_b_4x4(MACROBLOCK *x, int plane, int block,
                                const int16_t *scan, const int16_t *iscan);

struct VP9_COMP;
struct VP9Common;

void vp9_frame_init_quantizer(struct VP9_COMP *cpi);

void vp9_init_plane_quantizers(struct VP9_COMP *cpi, MACROBLOCK *x);

void vp9_init_quantizer(struct VP9_COMP *cpi);

void vp9_set_quantizer(struct VP9Common *cm, int q);

int vp9_quantizer_to_qindex(int quantizer);

int vp9_qindex_to_quantizer(int qindex);

#ifdef __cplusplus
}  // extern "C"
#endif

#endif  // VPX_VP9_ENCODER_VP9_QUANTIZE_H_