[FFmpeg-trac] #11604(ffmpeg:new): Infinite loop filter does not shutdown gracefully on SIGTERM

[FFmpeg]

#11604: Infinite loop filter does not shutdown gracefully on SIGTERM
--------------------------------+----------------------------------
             Reporter:  r3d     |                     Type:  defect
               Status:  new     |                 Priority:  normal
            Component:  ffmpeg  |                  Version:  7.1
             Keywords:  loop    |               Blocked By:
             Blocking:          |  Reproduced by developer:  0
Analyzed by developer:  0       |
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 Summary of the bug:
 When using the video loop filter with loop=-1 and then trying to terminate
 the ffmpeg process by sending a SIGTERM, the process does not terminate in
 a reasonable amount of time and needs to be killed.
 How to reproduce:
 {{{
 % ffmpeg -hwaccel auto -nostdin -i path/to/MPEG-2/video/file.m2v
 -filter_complex
 "[0]scale=height=1080:width=1920[s0];[s0]loop=loop=-1:size=200:start=25[s1]"
 -map "[s1]" -f rawvideo -fps_mode passthrough -loglevel error -pix_fmt
 rgb24 -report pipe:
 ffmpeg version 7.1 Copyright (c) 2000-2024 the FFmpeg developers
 built with gcc 14 (SUSE Linux)
   configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64
 --incdir=/usr/include/ffmpeg --extra-cflags='-O2 -Wall -U_FORTIFY_SOURCE
 -D_FORTIFY_SOURCE=3 -fstack-protector-strong -funwind-tables
 -fasynchronous-unwind-tables -fstack-clash-protection -Werror=return-type
 -flto=auto -ffat-lto-objects -g' --optflags='-O2 -Wall -U_FORTIFY_SOURCE
 -D_FORTIFY_SOURCE=3 -fstack-protector-strong -funwind-tables
 -fasynchronous-unwind-tables -fstack-clash-protection -Werror=return-type
 -flto=auto -ffat-lto-objects -g' --disable-htmlpages --enable-pic
 --disable-stripping --enable-shared --disable-static --enable-gpl
 --enable-version3 --enable-libsmbclient --disable-openssl --enable-gnutls
 --enable-ladspa --enable-libshaderc --enable-vulkan --enable-libplacebo
 --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b
 --enable-libcdio --enable-libcodec2 --enable-libdav1d --enable-libdc1394
 --enable-libdrm --enable-libfontconfig --enable-libfreetype --enable-
 libfribidi --enable-libgsm --enable-libjack --  libavutil      59. 39.100
 / 59. 39.100
   libavcodec     61. 19.100 / 61. 19.100
   libavformat    61.  7.100 / 61.  7.100
   libavdevice    61.  3.100 / 61.  3.100
   libavfilter    10.  4.100 / 10.  4.100
   libswscale      8.  3.100 /  8.  3.100
   libswresample   5.  3.100 /  5.  3.100
   libpostproc    58.  3.100 / 58.  3.100
 }}}
 Patches should be submitted to the ffmpeg-devel mailing list and not this
 bug tracker.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11604>
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