[FFmpeg-trac] #11637(undetermined:new): Blackdetect_vulkan doesn't log anything

[FFmpeg]

#11637: Blackdetect_vulkan doesn't log anything
-------------------------------------+-------------------------------------
             Reporter:  na           |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 When running "blackdetect_vulkan" nothing is logged.
 Running the same command with normal "blackdetect" outputs multiple
 matches to the log.

 How to reproduce:
 {{{
 % ffmpeg.exe -report -init_hw_device "vulkan=vk:0" -filter_hw_device vk -i
 input.mkv -vf
 "hwupload,blackdetect_vulkan=d=0.04:pic_th=0.98:pix_th=0.15,hwdownload" -f
 null -y /NUL
 ffmpeg version 2025-06-11-git-f019dd69f0-full_build-www.gyan.dev
   built with gcc 15.1.0 (Rev4, Built by MSYS2 project)
   configuration: --enable-gpl --enable-version3 --enable-static --disable-
 w32threads --disable-autodetect --enable-fontconfig --enable-iconv
 --enable-gnutls --enable-lcms2 --enable-libxml2 --enable-gmp --enable-
 bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist
 --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth
 --enable-libbluray --enable-libcaca --enable-libdvdnav --enable-libdvdread
 --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-
 libdav1d --enable-libdavs2 --enable-libopenjpeg --enable-libquirc
 --enable-libuavs3d --enable-libxevd --enable-libzvbi --enable-liboapv
 --enable-libqrencode --enable-librav1e --enable-libsvtav1 --enable-
 libvvenc --enable-libwebp --enable-libx264 --enable-libx265 --enable-
 libxavs2 --enable-libxeve --enable-libxvid --enable-libaom --enable-libjxl
 --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r
 --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-
 liblensfun --enable-libvidstab --enable-lib  libavutil      60.  3.100 /
 60.  3.100
   libavcodec     62.  3.101 / 62.  3.101
   libavformat    62.  1.100 / 62.  1.100
   libavdevice    62.  0.100 / 62.  0.100
   libavfilter    11.  0.100 / 11.  0.100
   libswscale      9.  0.100 /  9.  0.100
   libswresample   6.  0.100 /  6.  0.100
 }}}
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11637>
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