From 5fba8d773c3f6ea35a2934baa91372806f1c9940 Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@duempel.org>
Date: Sat, 15 Aug 2015 15:55:46 +0200
Subject: PlayerThread, ...: move to src/player/

---
 src/player/CrossFade.hxx | 72 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 src/player/CrossFade.hxx

(limited to 'src/player/CrossFade.hxx')

diff --git a/src/player/CrossFade.hxx b/src/player/CrossFade.hxx
new file mode 100644
index 000000000..672abb718
--- /dev/null
+++ b/src/player/CrossFade.hxx
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2003-2015 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
+
+#include "Compiler.h"
+
+struct AudioFormat;
+class SignedSongTime;
+
+struct CrossFadeSettings {
+	/**
+	 * The configured cross fade duration [s].
+	 */
+	float duration;
+
+	float mixramp_db;
+
+	/**
+	 * The configured MixRapm delay [s].  A non-positive value
+	 * disables MixRamp.
+	 */
+	float mixramp_delay;
+
+	CrossFadeSettings()
+		:duration(0),
+		 mixramp_db(0),
+		 mixramp_delay(-1)
+	{}
+
+
+	/**
+	 * Calculate how many music pipe chunks should be used for crossfading.
+	 *
+	 * @param total_time total_time the duration of the new song
+	 * @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
+	 */
+	gcc_pure
+	unsigned Calculate(SignedSongTime total_time,
+			   float replay_gain_db, float replay_gain_prev_db,
+			   const char *mixramp_start,
+			   const char *mixramp_prev_end,
+			   AudioFormat af, AudioFormat old_format,
+			   unsigned max_chunks) const;
+};
+
+#endif
-- 
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