avformat/mov: Break out of inner loop early in mov_estimate_video_delay()

0.266 <- 0.299 sec (this is time ffmpeg so containing alot other things)

Sample for benchmark was: ffmpeg -f rawvideo -pix_fmt yuv420p -s 32x32 -i /dev/zero -t 24:00:00.00 out.mp4

Reviewed-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Reviewed-by: Sasi Inguva <isasi@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

diff --git a/libavformat/mov.c b/libavformat/mov.c
index 67b3e11eb91f04b99f09a7c0dcad21909a146d11..8a91239243974ac45e4bda51386a35e0155884b4 100644 (file)
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -3332,6 +3332,8 @@ static void mov_estimate_video_delay(MOVContext *c, AVStream* st) {
                 if (pts_buf[j] < pts_buf[r]) {
                     FFSWAP(int64_t, pts_buf[j], pts_buf[r]);
                     ++num_swaps;
+                } else {
+                    break;
                 }
                 j = r;
             }