ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sun 
Feb 16 18:51:52 2020 +0100| [9874815b1aadadd7fd19aa6aabb7d9193f2f43d5] | 
committer: Michael Niedermayer

avformat/mpegenc: Fix integer overflow with AV_NOPTS_VALUE

Fixes: signed integer overflow: -9223372036854775808 - 45000 cannot be 
represented in type 'long'
Fixes: ticket8187

Found-by: Suhwan
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9874815b1aadadd7fd19aa6aabb7d9193f2f43d5
---

 libavformat/mpegenc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/mpegenc.c b/libavformat/mpegenc.c
index 669ff9d152..9bd0a555d4 100644
--- a/libavformat/mpegenc.c
+++ b/libavformat/mpegenc.c
@@ -1210,7 +1210,7 @@ static int mpeg_mux_write_packet(AVFormatContext *ctx, 
AVPacket *pkt)
     if (s->is_dvd) {
         // min VOBU length 0.4 seconds (mpucoder)
         if (is_iframe &&
-            (s->packet_number == 0 ||
+            (s->packet_number == 0 || pts != AV_NOPTS_VALUE &&
              (pts - stream->vobu_start_pts >= 36000))) {
             stream->bytes_to_iframe = av_fifo_size(stream->fifo);
             stream->align_iframe    = 1;

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