1 files changed, 47 insertions, 0 deletions
diff --git a/trunk/src/normalize.c b/trunk/src/normalize.c
new file mode 100644
index 000000000..fb62e7a4e
--- /dev/null
+++ b/trunk/src/normalize.c
@@ -0,0 +1,47 @@
+/* the Music Player Daemon (MPD)
+ * Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
+ * This project's homepage is: 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "compress.h"
+#include "conf.h"
+#include "normalize.h"
+
+#include <stdlib.h>
+
+int normalizationEnabled;
+
+void initNormalization(void)
+{
+	normalizationEnabled = getBoolConfigParam(CONF_VOLUME_NORMALIZATION);
+	if (normalizationEnabled == -1) normalizationEnabled = 0;
+	else if (normalizationEnabled < 0) exit(EXIT_FAILURE);
+
+	if (normalizationEnabled)
+		CompressCfg(0, ANTICLIP, TARGET, GAINMAX, GAINSMOOTH, BUCKETS);
+}
+
+void finishNormalization(void)
+{
+	if (normalizationEnabled) CompressFree();
+}
+
+void normalizeData(char *buffer, int bufferSize, AudioFormat *format)
+{
+	if ((format->bits != 16) || (format->channels != 2)) return;
+
+	CompressDo(buffer, bufferSize);
+}