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, 16 insertions, 0 deletions

diff --git a/src/tag_id3.h b/src/tag_id3.h
index 17dde4b3..fb5c7c65 100644
--- a/src/tag_id3.h
+++ b/src/tag_id3.h
@@ -22,9 +22,17 @@
 
 #include "check.h"
 
+#include <stdbool.h>
+
+struct tag_handler;
 struct tag;
 
 #ifdef HAVE_ID3TAG
+
+bool
+tag_id3_scan(const char *path_fs,
+	     const struct tag_handler *handler, void *handler_ctx);
+
 struct id3_tag;
 struct tag *tag_id3_import(struct id3_tag *);
 
@@ -34,6 +42,14 @@ struct tag *tag_id3_load(const char *file);
 
 #include <glib.h>
 
+static inline bool
+tag_id3_scan(G_GNUC_UNUSED const char *path_fs,
+	     G_GNUC_UNUSED const struct tag_handler *handler,
+	     G_GNUC_UNUSED void *handler_ctx)
+{
+	return false;
+}
+
 static inline struct tag *
 tag_id3_load(G_GNUC_UNUSED const char *file)
 {