46 lines
1.6 KiB
C
46 lines
1.6 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 All unpublished rights reserved.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.
|
|
*
|
|
****************************************************************************/
|
|
/********************************************************
|
|
SBC Example PLC ANSI-C Source Code
|
|
File: sbcplc.h
|
|
*****************************************************************************/
|
|
#ifndef SBCPLC_H
|
|
#define SBCPLC_H
|
|
|
|
#define FS 120 /* Frame Size */
|
|
#define N 256 /* 16ms - Window Length for pattern matching */
|
|
#define M 64 /* 4ms - Template for matching */
|
|
#define LHIST (N+FS-1) /* Length of history buffer required */
|
|
#define SBCRT 60 /* SBC Reconvergence Time (samples) */
|
|
#define OLAL 60 /* OverLap-Add Length (samples) */
|
|
|
|
//SBCRT + OLAL must be <=FS
|
|
|
|
/* PLC State Information */
|
|
struct PLC_State
|
|
{
|
|
short hist[LHIST + OLAL + FS + SBCRT + OLAL];
|
|
short bestlag;
|
|
int nbf;
|
|
};
|
|
extern unsigned char indices0[57];
|
|
/* Prototypes */
|
|
void InitPLC(struct PLC_State *plc_state);
|
|
void PLC_bad_frame(struct PLC_State *plc_state, short *ZIRbuf, short *out);
|
|
void PLC_good_frame(struct PLC_State *plc_state, short *in, short *out);
|
|
#endif /* SBCPLC_H */
|
|
|