/* * Copyright (C) 2003-2009 The Music Player Daemon Project * http://www.musicpd.org * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ /* * (c)2004 replayGain code by AliasMrJones */ #ifndef MPD_REPLAY_GAIN_H #define MPD_REPLAY_GAIN_H #include <stdbool.h> enum replay_gain_mode { REPLAY_GAIN_OFF = -1, REPLAY_GAIN_ALBUM, REPLAY_GAIN_TRACK, }; struct audio_format; extern enum replay_gain_mode replay_gain_mode; struct replay_gain_tuple { float gain; float peak; }; struct replay_gain_info { struct replay_gain_tuple tuples[2]; /* used internally by mpd, to mess with it */ float scale; }; struct replay_gain_info * replay_gain_info_new(void); void replay_gain_info_free(struct replay_gain_info *info); void replay_gain_global_init(void); /** * Returns the current replay gain mode as a machine-readable string. */ const char * replay_gain_get_mode_string(void); /** * Sets the replay gain mode, parsed from a string. * * @return true on success, false if the string could not be parsed */ bool replay_gain_set_mode_string(const char *p); void replay_gain_apply(struct replay_gain_info *info, char *buffer, int bufferSize, const struct audio_format *format); #endif