segment_time and segment_times are defined as duration specifications, not
timestamps, so calculation of segment duration must account for initial
timestamp. Fixed.
---
libavformat/segment.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/libavformat/segment.c b/libavformat/segment.c
index 0e6421ea5d..80e4bf851c 100644
--- a/libavformat/segment.c
+++ b/libavformat/segment.c
@@ -116,6 +116,7 @@ typedef struct SegmentContext {
int64_t initial_offset; ///< initial timestamps offset, expressed in
microseconds
char *reference_stream_specifier; ///< reference stream specifier
int reference_stream_index;
+ int64_t reference_stream_first_pts; ///< initial timestamp, expressed
in microseconds
int break_non_keyframes;
int write_empty;
@@ -746,6 +747,8 @@ static int seg_init(AVFormatContext *s)
seg->reference_stream_index,
av_get_media_type_string(s->streams[seg->reference_stream_index]->codecpar->codec_type));
+ seg->reference_stream_first_pts = AV_NOPTS_VALUE;
+
seg->oformat = av_guess_format(seg->format, s->url, NULL);
if (!seg->oformat)
@@ -898,6 +901,18 @@ calc_times:
pkt->flags & AV_PKT_FLAG_KEY,
pkt->stream_index == seg->reference_stream_index ?
seg->frame_count : -1);
+ if (seg->reference_stream_first_pts == AV_NOPTS_VALUE &&
+ pkt->stream_index == seg->reference_stream_index &&
+ pkt->pts != AV_NOPTS_VALUE) {
+ seg->reference_stream_first_pts = av_rescale_q(pkt->pts,
st->time_base, AV_TIME_BASE_Q);
+ }
+
+ if (seg->reference_stream_first_pts != AV_NOPTS_VALUE) {
+ end_pts += (INT64_MAX - end_pts >= seg->reference_stream_first_pts) ?
+ seg->reference_stream_first_pts :
+ INT64_MAX - end_pts;
+ }
+
if (pkt->pts != AV_NOPTS_VALUE)
pkt_pts_avtb = av_rescale_q(pkt->pts, st->time_base, AV_TIME_BASE_Q);
--
2.36.1
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