From ad9b4ecc26bef7babb31b58f19c869f6464c2db9 Mon Sep 17 00:00:00 2001
From: Steven Liu <lq@chinaffmpeg.org>
Date: Wed, 5 Sep 2018 14:33:53 +0800
Subject: [PATCH] avformat/dashdec: refine compute current fragment for
presentation_timeoffset mode
fix ticket id: #7369 #7382.
use ((wallclock - availability_start_time) * timescale -presentation_timeoffset) / duration
Signed-off-by: Steven Liu <lq@onvideo.cn>
---
libavformat/dashdec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavformat/dashdec.c b/libavformat/dashdec.c
index e8c57a51c5b..154b1426b95 100644
--- a/libavformat/dashdec.c
+++ b/libavformat/dashdec.c
@@ -1341,7 +1341,7 @@ static int64_t calc_cur_seg_no(AVFormatContext *s, struct representation *pls)
} else if (pls->fragment_duration){
av_log(s, AV_LOG_TRACE, "in fragment_duration mode fragment_timescale = %"PRId64", presentation_timeoffset = %"PRId64"\n", pls->fragment_timescale, pls->presentation_timeoffset);
if (pls->presentation_timeoffset) {
- num = pls->presentation_timeoffset * pls->fragment_timescale / pls->fragment_duration;
+ num = pls->first_seq_no + (((get_current_time_in_sec() - c->availability_start_time) * pls->fragment_timescale)-pls->presentation_timeoffset) / pls->fragment_duration;
} else if (c->publish_time > 0 && !c->availability_start_time) {
if (c->min_buffer_time) {
num = pls->first_seq_no + (((c->publish_time + pls->fragment_duration) - c->suggested_presentation_delay) * pls->fragment_timescale) / pls->fragment_duration - c->min_buffer_time;
--
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