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Code Issues Releases Activity

avconv: Move rescale to stream timebase before monotonisation

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If the stream timebase is coarser than the muxing timebase then the
monotonisation process may fail because adding one to the timestamp
need not actually produce a different timestamp after the rescale.
This commit is contained in:
Mark Thompson
2017-02-12 23:47:58 +00:00
parent 030de53e9c
commit 82989bd98c
1 changed files with 3 additions and 2 deletions
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5
avconv.c
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@@ -326,6 +326,8 @@ static void write_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost)
}
}
av_packet_rescale_ts(pkt, ost->mux_timebase, ost->st->time_base);
if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
ost->last_mux_dts != AV_NOPTS_VALUE &&
pkt->dts < ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT)) {
@@ -349,7 +351,6 @@ static void write_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost)
ost->packets_written++;
pkt->stream_index = ost->index;
av_packet_rescale_ts(pkt, ost->mux_timebase, ost->st->time_base);
ret = av_interleaved_write_frame(s, pkt);
if (ret < 0) {
@@ -1006,7 +1007,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
vid = 1;
}
/* compute min output value */
pts = (double)ost->last_mux_dts * av_q2d(ost->mux_timebase);
pts = (double)ost->last_mux_dts * av_q2d(ost->st->time_base);
if ((pts < ti1) && (pts > 0))
ti1 = pts;
}