This matches what we write in tfra and tfrf since 9cbf70fa0e.
---
libavformat/movenc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index b9e75f4..bc5370e 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -2542,7 +2542,8 @@ static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack
*track)
avio_write(pb, uuid, sizeof(uuid));
avio_w8(pb, 1);
avio_wb24(pb, 0);
- avio_wb64(pb, track->frag_start);
+ avio_wb64(pb, track->start_dts + track->frag_start +
+ track->cluster[0].cts);
avio_wb64(pb, track->start_dts + track->track_duration -
track->cluster[0].dts);
--
1.9.5 (Apple Git-50.3)
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