[FFmpeg-cvslog] avcodec/mpeg4videoenc: Use 64 bit for times in mpeg4_encode_gop_header()

[Michael Niedermayer]

ffmpeg | branch: release/4.0 | Michael Niedermayer <michael at niedermayer.cc> | Mon May 21 23:08:05 2018 +0200| [b3d740263c08370c9e701ac372dff5cdc0ebd39d] | committer: Michael Niedermayer

avcodec/mpeg4videoenc: Use 64 bit for times in mpeg4_encode_gop_header()

Fixes truncation
Fixes Assertion n <= 31 && value < (1U << n) failed at libavcodec/put_bits.h:169
Fixes: ffmpeg_crash_2.avi

Found-by: Thuan Pham <thuanpv at comp.nus.edu.sg>, Marcel Böhme, Andrew Santosa and Alexandru RazvanCaciulescu with AFLSmart

Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
(cherry picked from commit e1182fac1afba92a4975917823a5f644bee7e6e8)
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b3d740263c08370c9e701ac372dff5cdc0ebd39d
---

 libavcodec/mpeg4videoenc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/mpeg4videoenc.c b/libavcodec/mpeg4videoenc.c
index 494452c938..f6a5992df7 100644
--- a/libavcodec/mpeg4videoenc.c
+++ b/libavcodec/mpeg4videoenc.c
@@ -882,7 +882,7 @@ void ff_set_mpeg4_time(MpegEncContext *s)
 
 static void mpeg4_encode_gop_header(MpegEncContext *s)
 {
-    int hours, minutes, seconds;
+    int64_t hours, minutes, seconds;
     int64_t time;
 
     put_bits(&s->pb, 16, 0);