decoder_plugin: scan tags with callback table

Pass a callback table to scan_file() and scan_stream(), instead of
returning a tag object.

1 files changed, 43 insertions, 0 deletions

diff --git a/src/tag_handler.c b/src/tag_handler.c
new file mode 100644
index 00000000..32de7650
--- /dev/null
+++ b/src/tag_handler.c
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2003-2011 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 "config.h"
+#include "tag_handler.h"
+
+static void
+add_tag_duration(unsigned seconds, void *ctx)
+{
+	struct tag *tag = ctx;
+
+	tag->time = seconds;
+}
+
+static void
+add_tag_tag(enum tag_type type, const char *value, void *ctx)
+{
+	struct tag *tag = ctx;
+
+	tag_add_item(tag, type, value);
+}
+
+const struct tag_handler add_tag_handler = {
+	.duration = add_tag_duration,
+	.tag = add_tag_tag,
+};
+