1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index e0f87c7c58..4872054eb1 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -611,7 +611,7 @@ typedef struct AVCodecContext {
     /**
      * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
      * this is used to workaround some encoder bugs
-     * - encoding: unused
+     * - encoding: set by user, if not then the default based on codec_id will be used
      * - decoding: set by user, will be converted to upper case by lavc during init
      */
     unsigned int codec_tag;