75 lines
2.0 KiB
C
75 lines
2.0 KiB
C
/*
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* FAAC - Freeware Advanced Audio Coder
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* Copyright (C) 2001 Menno Bakker
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* $Id: aacquant.h,v 1.9 2003/10/12 16:43:39 knik Exp $
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*/
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#ifndef AACQUANT_H
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#define AACQUANT_H
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#include "coder.h"
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#include "psych.h"
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#define IXMAX_VAL 8191
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#define PRECALC_SIZE (IXMAX_VAL+2)
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#define LARGE_BITS 100000
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#define SF_OFFSET 100
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#define POW20(x) pow(2.0,((double)x)*.25)
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#define IPOW20(x) pow(2.0,-((double)x)*.1875)
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#pragma pack(push, 1)
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typedef struct
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{
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double *pow43;
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double *adj43;
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double quality;
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} AACQuantCfg;
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#pragma pack(pop)
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void AACQuantizeInit(CoderInfo *coderInfo, unsigned int numChannels,
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AACQuantCfg *aacquantCfg);
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void AACQuantizeEnd(CoderInfo *coderInfo, unsigned int numChannels,
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AACQuantCfg *aacquantCfg);
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int AACQuantize(CoderInfo *coderInfo,
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PsyInfo *psyInfo,
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ChannelInfo *channelInfo,
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int *cb_width,
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int num_cb,
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double *xr,
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AACQuantCfg *aacquantcfg);
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int SortForGrouping(CoderInfo* coderInfo,
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PsyInfo *psyInfo,
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ChannelInfo *channelInfo,
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int *sfb_width_table,
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double *xr);
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void CalcAvgEnrg(CoderInfo *coderInfo,
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const double *xr);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* AACQUANT_H */
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