subtitle demux: add comment about how to enable auto detection.

diff --git a/modules/demux/subtitle.c b/modules/demux/subtitle.c
index 8883d124d5305d889df7cb55055d27fbfc44bb9c..3eef59b035535afcd12b05ee370191f7a040c84e 100644 (file)
--- a/modules/demux/subtitle.c
+++ b/modules/demux/subtitle.c
@@ -215,6 +215,9 @@ static const struct
     { "subviewer1", SUB_TYPE_SUBVIEW1,    "Subviewer 1", ParseSubViewer1 },
     { NULL,         SUB_TYPE_UNKNOWN,     "Unknown",     NULL }
 };
+/* When adding support for more formats, be sure to add their file extension
+ * to src/input/subtitles.c to enable auto-detection.
+ */
 
 static int Demux( demux_t * );
 static int Control( demux_t *, int, va_list );