Opened 5 years ago

Closed 2 years ago

Last modified 2 years ago

#8201 closed defect (fixed)

outside the range of int at libavcodec/mpegvideo_enc.c

Reported by: Suhwan Owned by:
Priority: normal Component: undetermined
Version: git-master Keywords: ubsan
Cc: Blocked By:
Blocking: Reproduced by developer: no
Analyzed by developer: no


Summary of the bug:

libavcodec/mpegvideo_enc.c:497:37: runtime error: 1.66789e+11 is outside the range of representable values of type 'int'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior libavcodec/mpegvideo_enc.c:497:37 in

#0  ff_mpv_encode_init (avctx=<optimized out>) at libavcodec/mpegvideo_enc.c:494
#1  0x0000000005090e4e in avcodec_open2 (avctx=<optimized out>, 
    codec=0x9ffc7c0 <ff_flv_encoder>, options=0x616000018de0)
    at libavcodec/utils.c:935
#2  0x000000000061c78c in init_output_stream (ost=<optimized out>, 
    error=<optimized out>, error_len=1024) at fftools/ffmpeg.c:3517
#3  0x00000000006552db in reap_filters (flush=0) at fftools/ffmpeg.c:1442
#4  0x00000000005e7433 in transcode_step () at fftools/ffmpeg.c:4648
#5  transcode () at fftools/ffmpeg.c:4692
#6  0x00000000005db6ec in main (argc=<optimized out>, argv=<optimized out>)
    at fftools/ffmpeg.c:4894

How to reproduce:

% ./ffmpeg_g -t 1 -stream_loop 25 -y -i ffrv20-crashing-atmos.rm -loglevel 0 -map 0 -c:a:113 a64multi5 -vframes 99 -b:v 509k -strict 1 tmp.flv

ffmpeg version N-94982-gea673a0edb Copyright (c) 2000-2019 the FFmpeg developers
  built with clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final)
  configuration: --cc=clang --cxx=clang++ --ld=clang --enable-debug --toolchain=clang-usan

Attachments (2)

gdb-mpeg (57.9 KB ) - added by Suhwan 5 years ago.
ffrv20-crashing-atmos.rm (256.0 KB ) - added by Suhwan 5 years ago.

Download all attachments as: .zip

Change History (4)

by Suhwan, 5 years ago

Attachment: gdb-mpeg added

by Suhwan, 5 years ago

Attachment: ffrv20-crashing-atmos.rm added


comment:1 by Michael Niedermayer, 2 years ago

Resolution: worksforme
Status: newclosed

Does not reproduce. 3 year old line numbers dont make sense with git master. New testcase is needed if this is not fixed already

comment:2 by mkver, 2 years ago

Resolution: worksformefixed

Fixed in 245017ec8a87d6e4c764d06afeca37100b980d85.
(You even added a "Fixes: Ticket8201" to the commit message.)

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