pinebuds/services/multimedia/speech/inc/Pcm8k_Cvsd.h

50 lines
1.2 KiB
C

/***************************************************************************
*
* Copyright 2015-2019 BES.
* All rights reserved. All unpublished rights reserved.
*
* No part of this work may be used or reproduced in any form or by any
* means, or stored in a database or retrieval system, without prior written
* permission of BES.
*
* Use of this work is governed by a license granted by BES.
* This work contains confidential and proprietary information of
* BES. which is protected by copyright, trade secret,
* trademark and other intellectual property rights.
*
****************************************************************************/
/////////////////////////////////////////////////////////////////////////
//PCM8K <=> CVSD
/////////////////////////////////////////////////////////////////////////
#ifndef _PCM8K_CVSD_H_
#define _PCM8K_CVSD_H_
//max num of input samples
#define MAXNUMOFSAMPLES 128
//resample delay
#define RESAMPLE_DELAY 32
void Pcm8k_CvsdInit(void);
void Pcm8kToCvsd(short *PcmInBuf, unsigned char *CvsdOutBuf, int numsample);
void CvsdToPcm8k(unsigned char *CvsdInBuf, short *PcmOutBuf, int numsample, int LossFlag);
#endif