088122e748
* Combined Workspace for Encoder and Decoder * Addressed review comments and some minor edits --------- Co-authored-by: Divya B M <100655@ittiam.com>
60 lines
2.2 KiB
C
60 lines
2.2 KiB
C
/******************************************************************************
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* *
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* Copyright (C) 2023 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*****************************************************************************
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* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
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*/
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#include <string.h>
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#include "ixheaac_type_def.h"
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#include "ixheaac_constants.h"
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#include "ixheaace_aac_constants.h"
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#include "ixheaace_psy_utils.h"
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#include "ixheaac_basic_ops32.h"
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#include "ixheaac_basic_ops16.h"
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#include "ixheaac_basic_ops40.h"
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#include "ixheaac_basic_ops.h"
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VOID ia_enhaacplus_enc_init_pre_echo_control(FLOAT32 *ptr_pb_threshold_nm1, WORD32 num_pb,
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FLOAT32 *ptr_pb_threshold_quiet) {
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memcpy(ptr_pb_threshold_nm1, ptr_pb_threshold_quiet, num_pb * sizeof(*ptr_pb_threshold_nm1));
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}
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VOID ia_enhaacplus_enc_pre_echo_control(FLOAT32 *ptr_threshold_nm1, WORD32 num_sfb,
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FLOAT32 min_rem_thr_factor, FLOAT32 *ptr_threshold) {
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WORD32 i;
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FLOAT32 tmp_threshold1, tmp_threshold2;
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FLOAT32 *ptr_tmp_threshold = &ptr_threshold[0];
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FLOAT32 *ptr_tmp_threshold_nm1 = &ptr_threshold_nm1[0];
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for (i = num_sfb - 1; i >= 0; i--) {
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FLOAT32 tmp_var;
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tmp_var = *ptr_tmp_threshold;
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tmp_threshold1 = *ptr_tmp_threshold_nm1 * 2.0f;
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tmp_threshold2 = (min_rem_thr_factor * tmp_var);
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/* copy thresholds to internal memory */
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*ptr_tmp_threshold_nm1++ = tmp_var;
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tmp_var = MIN(tmp_var, tmp_threshold1);
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tmp_var = MAX(tmp_var, tmp_threshold2);
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*ptr_tmp_threshold++ = tmp_var;
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}
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}
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