10l, add parentheses

Originally committed as revision 13734 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/movenc.c

@@ -1184,7 +1184,7 @@ static int mov_write_udta_tag(ByteIOContext *pb, MOVContext *mov,
     if (s->title[0]   || s->author[0] || s->album[0] || s->year ||
         s->comment[0] || s->genre[0]  || s->track ||
         (mov->mode == MODE_MOV &&
-         (mov->tracks[0].enc && !mov->tracks[0].enc->flags & CODEC_FLAG_BITEXACT))) {
+         (mov->tracks[0].enc && !(mov->tracks[0].enc->flags & CODEC_FLAG_BITEXACT)))) {
         offset_t pos = url_ftell(pb);
 
         put_be32(pb, 0); /* size */