52 lines
2.0 KiB
C
52 lines
2.0 KiB
C
/*
|
|
* Copyright (C) 2003-2010 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.
|
|
*/
|
|
|
|
#ifndef MPD_CROSSFADE_H
|
|
#define MPD_CROSSFADE_H
|
|
|
|
struct audio_format;
|
|
struct music_chunk;
|
|
|
|
/**
|
|
* Calculate how many music pipe chunks should be used for crossfading.
|
|
*
|
|
* @param duration the requested crossfade duration
|
|
* @param total_time total_time the duration of the new song
|
|
* @param mixramp_db the current mixramp_db setting
|
|
* @param mixramp_delay the current mixramp_delay setting
|
|
* @param replay_gain_db the ReplayGain adjustment used for this song
|
|
* @param replay_gain_prev_db the ReplayGain adjustment used on the last song
|
|
* @param mixramp_start the next songs mixramp_start tag
|
|
* @param mixramp_prev_end the last songs mixramp_end setting
|
|
* @param af the audio format of the new song
|
|
* @param old_format the audio format of the current song
|
|
* @param max_chunks the maximum number of chunks
|
|
* @return the number of chunks for crossfading, or 0 if cross fading
|
|
* should be disabled for this song change
|
|
*/
|
|
unsigned cross_fade_calc(float duration, float total_time,
|
|
float mixramp_db, float mixramp_delay,
|
|
float replay_gain_db, float replay_gain_prev_db,
|
|
char *mixramp_start, char *mixramp_prev_end,
|
|
const struct audio_format *af,
|
|
const struct audio_format *old_format,
|
|
unsigned max_chunks);
|
|
|
|
#endif
|