80 lines
1.7 KiB
C
Executable File
80 lines
1.7 KiB
C
Executable File
// Copyright 2020-2021 Beken
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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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#ifndef __G711_H__
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#define __G711_H__
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif//__cplusplus
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/**
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* @brief AEC API
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* @defgroup AEC API group
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* @{
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*/
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/**
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* @brief G711A encodec pcm data to a-law data
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*
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* @param pcm_val 16 bit pcm data
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*
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* @return
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* - unsigned char: a-law data after pcm data has been encoded by G711A
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*/
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unsigned char linear2alaw(int pcm_val);
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/**
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* @brief G711A decodec a-law data to pcm data
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*
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* @param a_val 8 bit a-law data
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*
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* @return
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* - int: pcm data after a-law data has been decoded by G711A
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*/
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int alaw2linear(unsigned char a_val);
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/**
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* @brief G711U encodec pcm data to u-law data
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*
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* @param pcm_val 16 bit pcm data
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*
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* @return
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* - unsigned char: u-law data after pcm data has been encoded by G711U
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*/
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unsigned char linear2ulaw(int pcm_val);
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/**
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* @brief G711U decodec u-law data to pcm data
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*
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* @param u_val 8 bit u-law data
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*
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* @return
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* - int: pcm data after u-law data has been decoded by G711U
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*/
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int ulaw2linear(unsigned char u_val);
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/**
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* @}
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*/
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#ifdef __cplusplus
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}
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#endif//__cplusplus
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#endif//__AEC_H__
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