From: Aman Gupta <a...@tmm1.net>
the eia_608 decoder with real_time=1 emits subtitles with an unknown
duration, which were getting converted into ass incorrectly before this
patch.
---
libavcodec/utils.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 402a9d8..1047a74 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -2554,7 +2554,7 @@ static int convert_sub_to_old_ass_form(AVSubtitle *sub,
const AVPacket *pkt, AVR
/* rescale timing to ASS time base (ms) */
ts_start = av_rescale_q(pkt->pts, tb, av_make_q(1, 100));
- if (pkt->duration != -1)
+ if (pkt->duration != -1 && sub->end_display_time != -1)
ts_duration = av_rescale_q(pkt->duration, tb, av_make_q(1, 100));
sub->end_display_time = FFMAX(sub->end_display_time, 10 * ts_duration);
--
2.8.1
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