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-rw-r--r--test/software_volume.c63
1 files changed, 63 insertions, 0 deletions
diff --git a/test/software_volume.c b/test/software_volume.c
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+++ b/test/software_volume.c
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+/*
+ * Copyright (C) 2003-2009 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/*
+ * This program is a command line interface to MPD's software volume
+ * library (pcm_volume.c).
+ *
+ */
+
+#include "pcm_volume.h"
+#include "audio_parser.h"
+#include "audio_format.h"
+
+#include <glib.h>
+
+#include <stddef.h>
+#include <unistd.h>
+
+int main(int argc, char **argv)
+{
+ GError *error = NULL;
+ struct audio_format audio_format = {
+ .sample_rate = 48000,
+ .bits = 16,
+ .channels = 2,
+ };
+ bool ret;
+ static char buffer[4096];
+ ssize_t nbytes;
+
+ if (argc > 2) {
+ g_printerr("Usage: software_voluem [FORMAT] <IN >OUT\n");
+ return 1;
+ }
+
+ if (argc > 1) {
+ ret = audio_format_parse(&audio_format, argv[1], &error);
+ if (!ret) {
+ g_printerr("Failed to parse audio format: %s\n");
+ return 1;
+ }
+ }
+
+ while ((nbytes = read(0, buffer, sizeof(buffer))) > 0) {
+ pcm_volume(buffer, nbytes, &audio_format, PCM_VOLUME_1 / 2);
+ write(1, buffer, nbytes);
+ }
+}