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authorMax Kellermann <max@duempel.org>2014-01-24 16:25:21 +0100
committerMax Kellermann <max@duempel.org>2014-01-24 16:44:32 +0100
commit68eda78704ec50f71333d661db5568700fe00355 (patch)
tree0ea518a03e303946d7b4839d04b21ef77c200ff9 /src/mixer/Volume.hxx
parent7c52a1c04bccac68f4220c8bf3d3a59c16ed58db (diff)
downloadmpd-68eda78704ec50f71333d661db5568700fe00355.tar.gz
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Mixer*: move to mixer/
Diffstat (limited to 'src/mixer/Volume.hxx')
-rw-r--r--src/mixer/Volume.hxx49
1 files changed, 49 insertions, 0 deletions
diff --git a/src/mixer/Volume.hxx b/src/mixer/Volume.hxx
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+/*
+ * Copyright (C) 2003-2014 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_VOLUME_HXX
+#define MPD_VOLUME_HXX
+
+#include "Compiler.h"
+
+#include <stdio.h>
+
+void volume_init(void);
+
+gcc_pure
+int volume_level_get(void);
+
+bool volume_level_change(unsigned volume);
+
+bool
+read_sw_volume_state(const char *line);
+
+void save_sw_volume_state(FILE *fp);
+
+/**
+ * Generates a hash number for the current state of the software
+ * volume control. This is used by timer_save_state_file() to
+ * determine whether the state has changed and the state file should
+ * be saved.
+ */
+gcc_pure
+unsigned
+sw_volume_state_get_hash(void);
+
+#endif