52 lines
1.6 KiB
C
52 lines
1.6 KiB
C
/* the Music Player Daemon (MPD)
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* Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
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* This project's homepage is: http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; 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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#include "compress.h"
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#include "conf.h"
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#include "normalize.h"
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#include <stdlib.h>
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#define DEFAULT_VOLUME_NORMALIZATION 0
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int normalizationEnabled;
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void initNormalization(void)
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{
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normalizationEnabled = getBoolConfigParam(CONF_VOLUME_NORMALIZATION);
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if (normalizationEnabled == -1)
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normalizationEnabled = DEFAULT_VOLUME_NORMALIZATION;
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else if (normalizationEnabled < 0)
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exit(EXIT_FAILURE);
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if (normalizationEnabled)
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CompressCfg(0, ANTICLIP, TARGET, GAINMAX, GAINSMOOTH, BUCKETS);
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}
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void finishNormalization(void)
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{
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if (normalizationEnabled) CompressFree();
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}
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void normalizeData(char *buffer, int bufferSize, AudioFormat *format)
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{
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if ((format->bits != 16) || (format->channels != 2)) return;
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CompressDo(buffer, bufferSize);
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}
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