output/raop: new output plugin

Remote Audio Output Protocol (RAOP), for Apple devices.

src/mixer/raop_mixer_plugin.c

@@ -0,0 +1,78 @@
+/*
+ * 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "../output/raop_output_plugin.h"
+#include "../output_plugin.h"
+#include "../mixer_api.h"
+
+#include <glib.h>
+
+#include <assert.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+struct raop_mixer_plugin {
+	struct mixer base;
+	struct raop_data *rd;
+};
+
+static struct mixer *
+raop_mixer_init(void *ao, G_GNUC_UNUSED const struct config_param *param,
+		 G_GNUC_UNUSED GError **error_r)
+{
+	struct raop_mixer_plugin *rm = g_new(struct raop_mixer_plugin, 1);
+	rm->rd = (struct raop_data *) ao;
+	mixer_init(&rm->base, &raop_mixer_plugin);
+
+	return &rm->base;
+}
+
+static void
+raop_mixer_finish(struct mixer *data)
+{
+	struct raop_mixer_plugin *rm = (struct raop_mixer_plugin *) data;
+
+	g_free(rm);
+}
+
+static int
+raop_mixer_get_volume(struct mixer *mixer, G_GNUC_UNUSED GError **error_r)
+{
+	struct raop_mixer_plugin *rm = (struct raop_mixer_plugin *)mixer;
+	return raop_get_volume(rm->rd);
+}
+
+static bool
+raop_mixer_set_volume(struct mixer *mixer, unsigned volume, G_GNUC_UNUSED GError **error_r)
+{
+	struct raop_mixer_plugin *rm = (struct raop_mixer_plugin *)mixer;
+	g_debug("raop_mixer_set_volume\n");
+	return raop_set_volume(rm->rd, volume);
+}
+
+const struct mixer_plugin raop_mixer_plugin = {
+	.init = raop_mixer_init,
+	.finish = raop_mixer_finish,
+	.get_volume = raop_mixer_get_volume,
+	.set_volume = raop_mixer_set_volume,
+};