81 lines
1.8 KiB
C
81 lines
1.8 KiB
C
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/***************************************************************************
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*
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* Copyright 2015-2019 BES.
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* All rights reserved. All unpublished rights reserved.
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*
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* No part of this work may be used or reproduced in any form or by any
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* means, or stored in a database or retrieval system, without prior written
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* permission of BES.
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*
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* Use of this work is governed by a license granted by BES.
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* This work contains confidential and proprietary information of
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* BES. which is protected by copyright, trade secret,
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* trademark and other intellectual property rights.
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*
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****************************************************************************/
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/*******************************************************************************
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** namer<EFBFBD><EFBFBD>CVSD CODEC header
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** description<EFBFBD><EFBFBD>CVSD encoder and CVSD decoder header
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** version<EFBFBD><EFBFBD>V1.0
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** author: xuml
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** modify<EFBFBD><EFBFBD>2015.8.21.
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*******************************************************************************/
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#ifndef _CVSD_CODEC_H_
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#define _CVSD_CODEC_H_
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//Q fixed
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#define CVSD_Q 10
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struct CvsdEncSt
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{
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unsigned short CvsdEncJudgeAlpha;
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int CvsdEncLastData;
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int CvsdEncDelta;
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int CvsdEncFirstFrameFlag;
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int FilterState0[3];
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int FilterState1[3];
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int FilterState2[3];
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};
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//decoder
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struct CvsdDecSt
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{
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unsigned short CvsdDecJudgeAlpha;
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int CvsdDecLastData;
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int CvsdDecDelta;
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int FilterState0[3];
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int FilterState1[3];
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int FilterState2[3];
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};
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#ifdef __cplusplus
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extern "C" {
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#endif
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//encoder
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void CvsdEncInit(struct CvsdEncSt *CvsdEnc);
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int CvsdEncode(struct CvsdEncSt *CvsdEnc, short *pInPutData, short *pOutPutdata, int iEncSize);
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//decoder
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void CvsdDecInit(struct CvsdDecSt *CvsdDec);
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int CvsdDecode(struct CvsdDecSt *CvsdDec, short *pInPutData, short *pOutPutdata, int iDecSize);
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#ifdef __cplusplus
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}
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#endif
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#endif
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