fftdenoiz gives corrupt results

[erjiang]

Regression in the 3d FFT Denoiser filter in libavfilter, with ffmpeg 5.0.1 as shipped with Kdenlive 22.08.1 (AppImage). When rendered, the bottom lines of the video are corrupted and are black, green, or garbage data.

How to reproduce:

$ ffmpeg -version
ffmpeg version 5.0.1 Copyright (c) 2000-2022 the FFmpeg developers
built with gcc 9 (GCC)
configuration: --enable-shared --disable-debug --disable-doc --enable-gpl --enable-version3 --enable-libmp3lame --cc=gcc --cxx=g++ --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libass --enable-libaom --enable-libdav1d --enable-libzimg --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-cuvid --enable-vaapi --enable-vdpau --enable-libmfx --prefix=/home/appimage/Craft/BC/linux-64-gcc --libdir=/home/appimage/Craft/BC/linux-64-gcc/lib
libavutil      57. 17.100 / 57. 17.100
libavcodec     59. 18.100 / 59. 18.100
libavformat    59. 16.100 / 59. 16.100
libavdevice    59.  4.100 / 59.  4.100
libavfilter     8. 24.100 /  8. 24.100
libswscale      6.  4.100 /  6.  4.100
libswresample   4.  3.100 /  4.  3.100
libpostproc    56.  3.100 / 56.  3.100
$ ffmpeg -i Steatocranus_casuarius_-_Buckelkopfbuntbarsch_mit_Jungen.m4v -vf fftdnoiz=sigma=30:amount=1.0:block=6:overlap=0.5 ffmpegout.mp4

The source file can be found here: ​https://invent.kde.org/erjiang/kdenlive-backcompat/-/tree/master/projects/footage

This seems to be a regression because 4.4.2-0ubuntu0.22.04.1 does not have the same problem.

[erjiang]

Frame taken from corrupt output

[Carl Eugen Hoyos]

Please test current FFmpeg git head, the only version supported on this bug tracker, and provide the command line you tested together with the complete, uncut console output to make this a valid ticket.

[Elon Musk]

Fixed and improved edges filtering in master.

[Carl Eugen Hoyos]

Fixed in ff3c7086867b78d6bd6c96ddef02886aba381633