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core.h
Package: helix.src.0812.rar [view]
Upload User: zhongxx05
Upload Date: 2007-06-06
Package Size: 33641k
Code Size: 3k
Category:
Symbian
Development Platform:
C/C++
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- /*
- * Fixed-point sampling rate conversion library
- * Developed by Ken Cooke (kenc@real.com)
- * May 2003
- *
- * Internal state.
- */
- typedef unsigned int uint;
- typedef struct state_t {
- int up;
- int dn;
- int nchans;
- int nwing;
- int nhist;
- int nstart;
- int offset;
- uint phasef;
- uint stepf;
- short *histbuf;
- short *filter;
- short *rwing;
- short *lwing;
- short *stepNptr;
- int stepNfwd[3];
- int stepNbak[3];
- short *step1ptr;
- int step1fwd[3];
- int step1bak[3];
- short *(*ResampleCore)(short *, short *, short *, struct state_t *);
- } state_t;
- /* core functions */
- short *RATCoreMono(short *pcmptr, short *pcmend, short *outptr, state_t *s);
- short *RATCoreStereo(short *pcmptr, short *pcmend, short *outptr, state_t *s);
- short *ARBCoreMono(short *pcmptr, short *pcmend, short *outptr, state_t *s);
- short *ARBCoreStereo(short *pcmptr, short *pcmend, short *outptr, state_t *s);