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Diffstat (limited to '')
-rw-r--r-- | src/CrossFade.hxx | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/src/CrossFade.hxx b/src/CrossFade.hxx new file mode 100644 index 000000000..1c4670758 --- /dev/null +++ b/src/CrossFade.hxx @@ -0,0 +1,51 @@ +/* + * Copyright (C) 2003-2013 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_HXX +#define MPD_CROSSFADE_HXX + +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 |