Mark some variables with av_unused

Most of these variables are only used in av_dlog statements, some
are required but not used by other macros.

Signed-off-by: Mans Rullgard <mans@mansr.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/libavformat/mov.c b/libavformat/mov.c
index 8ec0d19ed2..6c3c95caa2 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -428,7 +428,7 @@ static int mov_read_hdlr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
 {
     AVStream *st;
     uint32_t type;
-    uint32_t ctype;
+    uint32_t av_unused ctype;
 
     if (c->fc->nb_streams < 1) // meta before first trak
         return 0;