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-rw-r--r--libavformat/movenc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index dc9570b50c..0942a11208 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -1801,7 +1801,7 @@ static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
int64_t pos = avio_tell(pb);
#if 1
int frame_duration = av_rescale(track->timescale, track->enc->time_base.num, track->enc->time_base.den);
- int nb_frames = 1.0/av_q2d(track->enc->time_base) + 0.5;
+ int nb_frames = ROUNDED_DIV(track->enc->time_base.den, track->enc->time_base.num);
AVDictionaryEntry *t = NULL;
if (nb_frames > 255) {