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

[Michael Niedermayer]

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>
---
 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);
-- 
2.17.0