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-rw-r--r--sub/dec_sub.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sub/dec_sub.c b/sub/dec_sub.c
index d94d1f0567..102a048da3 100644
--- a/sub/dec_sub.c
+++ b/sub/dec_sub.c
@@ -420,7 +420,7 @@ bool sub_read_all_packets(struct dec_sub *sub, struct sh_stream *sh)
// 23.976 FPS is used as default timebase for frame based formats
if (sub->video_fps && sh->sub->frame_based)
- sub_speed *= sub->video_fps / 23.976;
+ sub_speed *= 23.976 / sub->video_fps;
if (opts->sub_fps && sub->video_fps)
sub_speed *= opts->sub_fps / sub->video_fps;