[FFmpeg-cvslog] avformat/utils: Compute the current pts of mpeg1/2 I/ P frames from the next frame when available

Michael Niedermayer git at videolan.org
Tue Dec 9 04:03:31 CET 2014


ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Tue Dec  9 03:34:20 2014 +0100| [dd70470d72758b4e94b17c6808a5ed0c9e8fe097] | committer: Michael Niedermayer

avformat/utils: Compute the current pts of mpeg1/2 I/P frames from the next frame when available

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=dd70470d72758b4e94b17c6808a5ed0c9e8fe097
---

 libavformat/utils.c |    8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/libavformat/utils.c b/libavformat/utils.c
index f70223b..3246da6 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -1102,6 +1102,14 @@ static void compute_pkt_fields(AVFormatContext *s, AVStream *st,
                 st->last_IP_duration = pkt->duration;
             if (pkt->dts != AV_NOPTS_VALUE)
                 st->cur_dts = pkt->dts + st->last_IP_duration;
+            if (pkt->dts != AV_NOPTS_VALUE &&
+                pkt->pts == AV_NOPTS_VALUE &&
+                st->last_IP_duration > 0 &&
+                (st->cur_dts - next_dts) <= 1 &&
+                next_dts != next_pts &&
+                next_pts != AV_NOPTS_VALUE)
+                pkt->pts = next_dts;
+
             st->last_IP_duration = pkt->duration;
             st->last_IP_pts      = pkt->pts;
             /* Cannot compute PTS if not present (we can compute it only



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