#8169: Data race from ff_mpeg_update_thread_context in libavcodec/mpegvideo.c
-------------------------------------+-------------------------------------
Reporter: Suhwan | Type: defect
Status: new | Priority: normal
Component: | Version:
undetermined | unspecified
Keywords: tsan | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug:
There're data race bugs from ff_mpeg_update_thread_context in
libavcodec/mpegvideo.c:510:9 and from mpeg4_update_thread_context in
libavcodec/mpeg4videodec.c:3463:5.
How to reproduce:
{{{
% ./ffmpeg_g -y -i avi+mpeg4+mp2++PTS_DTS_Order_Prob.avi -target dv50
-loglevel 0 -map 0 -aframes 85 -r 101 -ac 20 -b:v 90k -strict 3
output/tmp.srt
ffmpeg version N-94943-g1db6e47e85 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-tsan
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/8169>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
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