Adjusting it is only necessary when a sidx/tfrf/tfxd atom already has
been written for the previous fragment (since the sidx/tfrf/tfxd atoms
include the duration between the first pts of the previous fragment, to
the first pts of the new fragment).
---
libavformat/movenc.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index bc5370e..85d865e 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -3454,10 +3454,12 @@ int ff_mov_write_packet(AVFormatContext *s, AVPacket
*pkt)
* of this packet to be what the previous packets duration
implies. */
trk->cluster[trk->entry].dts = trk->start_dts +
trk->track_duration;
/* We also may have written the pts and the corresponding duration
- * in sidx tags; make sure the sidx pts and duration match up with
+ * in sidx/tfrf/tfxd tags; make sure the sidx pts and duration
match up with
* the next fragment. This means the cts of the first sample must
* be the same in all fragments. */
- pkt->pts = pkt->dts + trk->start_cts;
+ if ((mov->flags & FF_MOV_FLAG_DASH && !(mov->flags &
FF_MOV_FLAG_FASTSTART)) ||
+ mov->mode == MODE_ISM)
+ pkt->pts = pkt->dts + trk->start_cts;
} else {
/* New fragment, but discontinuous from previous fragments.
* Pretend the duration sum of the earlier fragments is
--
1.9.5 (Apple Git-50.3)
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