1 files changed, 68 insertions, 0 deletions
diff --git a/test/software_volume.cxx b/test/software_volume.cxx
new file mode 100644
index 000000000..19a0be88c
--- /dev/null
+++ b/test/software_volume.cxx
@@ -0,0 +1,68 @@
+/*
+ * 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.
+ */
+
+/*
+ * This program is a command line interface to MPD's software volume
+ * library (pcm_volume.c).
+ *
+ */
+
+#include "config.h"
+#include "pcm/PcmVolume.hxx"
+#include "AudioParser.hxx"
+#include "AudioFormat.hxx"
+#include "util/Error.hxx"
+#include "stdbin.h"
+
+#include <glib.h>
+
+#include <stddef.h>
+#include <unistd.h>
+
+int main(int argc, char **argv)
+{
+	static char buffer[4096];
+	ssize_t nbytes;
+
+	if (argc > 2) {
+		g_printerr("Usage: software_volume [FORMAT] <IN >OUT\n");
+		return 1;
+	}
+
+	Error error;
+	AudioFormat audio_format(48000, SampleFormat::S16, 2);
+	if (argc > 1) {
+		if (!audio_format_parse(audio_format, argv[1], false, error)) {
+			g_printerr("Failed to parse audio format: %s\n",
+				   error.GetMessage());
+			return 1;
+		}
+	}
+
+	while ((nbytes = read(0, buffer, sizeof(buffer))) > 0) {
+		if (!pcm_volume(buffer, nbytes,
+				audio_format.format,
+				PCM_VOLUME_1 / 2)) {
+			g_printerr("pcm_volume() has failed\n");
+			return 2;
+		}
+
+		gcc_unused ssize_t ignored = write(1, buffer, nbytes);
+	}
+}