TagArchive: add overload with ArchiveFile&

src/TagArchive.hxx

@@ -22,6 +22,7 @@
 
 #include "check.h"
 
+class ArchiveFile;
 class Path;
 struct TagHandler;
 class TagBuilder;
@@ -48,4 +49,16 @@ tag_archive_scan(Path path, const TagHandler &handler, void *handler_ctx);
 bool
 tag_archive_scan(Path path, TagBuilder &builder);
 
+/**
+ * Scan the tags of a song file inside an archive.  Invokes matching
+ * decoder plugins, and falls back to generic scanners (APE and ID3)
+ * if no tags were found (but the file was recognized).
+ *
+ * @return true if the file was recognized (even if no metadata was
+ * found)
+ */
+bool
+tag_archive_scan(ArchiveFile &archive, const char *path_utf8,
+		 TagBuilder &builder);
+
 #endif