bddb6b4273
The new command "replay_gain_mode" allows the user to switch the replay gain mode on-the-fly. No more mpd.conf editing.
76 lines
1.8 KiB
C
76 lines
1.8 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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/*
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* (c)2004 replayGain code by AliasMrJones
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*/
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#ifndef MPD_REPLAY_GAIN_H
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#define MPD_REPLAY_GAIN_H
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#include <stdbool.h>
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enum replay_gain_mode {
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REPLAY_GAIN_OFF = -1,
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REPLAY_GAIN_ALBUM,
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REPLAY_GAIN_TRACK,
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};
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struct audio_format;
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extern enum replay_gain_mode replay_gain_mode;
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struct replay_gain_tuple {
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float gain;
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float peak;
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};
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struct replay_gain_info {
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struct replay_gain_tuple tuples[2];
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/* used internally by mpd, to mess with it */
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float scale;
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};
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struct replay_gain_info *
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replay_gain_info_new(void);
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void replay_gain_info_free(struct replay_gain_info *info);
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void replay_gain_global_init(void);
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/**
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* Returns the current replay gain mode as a machine-readable string.
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*/
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const char *
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replay_gain_get_mode_string(void);
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/**
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* Sets the replay gain mode, parsed from a string.
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*
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* @return true on success, false if the string could not be parsed
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*/
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bool
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replay_gain_set_mode_string(const char *p);
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void
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replay_gain_apply(struct replay_gain_info *info, char *buffer, int bufferSize,
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const struct audio_format *format);
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#endif
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