c412d6251e
This patch prepares support for floating point samples (and probably other formats). It changes the meaning of the "bits" attribute from a bit count to a symbolic value.
55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
/*
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* Copyright (C) 2003-2009 The Music Player Daemon Project
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* 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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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include "normalize.h"
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#include "AudioCompress/compress.h"
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#include "conf.h"
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#include "audio_format.h"
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#define DEFAULT_VOLUME_NORMALIZATION 0
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int normalizationEnabled;
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static struct Compressor *compressor;
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void initNormalization(void)
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{
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normalizationEnabled = config_get_bool(CONF_VOLUME_NORMALIZATION,
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DEFAULT_VOLUME_NORMALIZATION);
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if (normalizationEnabled)
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compressor = Compressor_new(0);
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}
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void finishNormalization(void)
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{
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if (normalizationEnabled)
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Compressor_delete(compressor);
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}
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void normalizeData(void *buffer, int bufferSize,
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const struct audio_format *format)
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{
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if (format->format != SAMPLE_FORMAT_S16 || format->channels != 2)
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return;
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Compressor_Process_int16(compressor, buffer, bufferSize / 2);
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}
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