avformat/mov: stop using deprecated codec flags

Signed-off-by: James Almer <jamrial@gmail.com>

libavformat/mov.c

@@ -873,7 +873,7 @@ static int mov_read_ddts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
     uint32_t channel_layout_code = 0;
     GetBitContext gb;
 
-    buf = av_malloc(ddts_size + FF_INPUT_BUFFER_PADDING_SIZE);
+    buf = av_malloc(ddts_size + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!buf) {
         return AVERROR(ENOMEM);
     }