/******************************************************************************

 *                                                                            *

 * Copyright (C) 2023 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at:

 *

 * http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 *

 *****************************************************************************

 * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore

 */

#include <math.h>

#include "ixheaac_type_def.h"

#include "ixheaac_constants.h"

#include "ixheaace_aac_constants.h"

#include "ixheaace_psy_const.h"

#include "ixheaace_tns.h"

#include "ixheaace_tns_params.h"

#include "ixheaace_rom.h"

#include "ixheaace_quant.h"

#include "ixheaace_common_rom.h"

#include "ixheaace_bitbuffer.h"

VOID iaace_quantize_lines(const WORD32 gain, const WORD32 num_lines, FLOAT32 *ptr_exp_spec,

                          WORD16 *ptr_quant_spec, FLOAT32 *ptr_mdct_spec) {

  FLOAT32 quantizer;

  FLOAT32 k = -0.0946f + 0.5f;

  WORD32 line;

  quantizer = ixheaace_fd_quant_table[gain + 128];

  for (line = 0; line < num_lines; line++) {

    FLOAT32 tmp = ptr_mdct_spec[line];

    if (tmp < 0.0f) {

      ptr_exp_spec[line] = (FLOAT32)sqrt(-tmp);

      ptr_exp_spec[line] *= (FLOAT32)sqrt(ptr_exp_spec[line]);

      ptr_quant_spec[line] = -(WORD16)(k + quantizer * ptr_exp_spec[line]);

    } else {

      ptr_exp_spec[line] = (FLOAT32)sqrt(tmp);

      ptr_exp_spec[line] *= (FLOAT32)sqrt(ptr_exp_spec[line]);

      ptr_quant_spec[line] = (WORD16)(k + quantizer * ptr_exp_spec[line]);

    }

  }

}