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/******************************************************************************
*
* Copyright 2022 Google LLC
*
* 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.
*
******************************************************************************/
#ifndef __LC3_BWDET_H
#define __LC3_BWDET_H
#include "common.h"
#include "bits.h"
/**
* Bandwidth detector
* dt, sr Duration and samplerate of the frame
* e Energy estimation per bands
* return Return detected bandwitdth
*/
enum lc3_bandwidth lc3_bwdet_run(
enum lc3_dt dt, enum lc3_srate sr, const float *e);
/**
* Return number of bits coding the bandwidth value
* sr Samplerate of the frame
* return Number of bits coding the bandwidth value
*/
int lc3_bwdet_get_nbits(enum lc3_srate sr);
/**
* Put bandwidth indication
* bits Bitstream context
* sr Samplerate of the frame
* bw Bandwidth detected
*/
void lc3_bwdet_put_bw(lc3_bits_t *bits,
enum lc3_srate sr, enum lc3_bandwidth bw);
/**
* Get bandwidth indication
* bits Bitstream context
* sr Samplerate of the frame
* bw Return bandwidth indication
* return 0: Ok -1: Invalid bandwidth indication
*/
int lc3_bwdet_get_bw(lc3_bits_t *bits,
enum lc3_srate sr, enum lc3_bandwidth *bw);
#endif /* __LC3_BWDET_H */
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