#9976: fftdenoiz gives corrupt results
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Reporter: erjiang | Type: defect
Status: new | Priority: normal
Component: avfilter | Version: unspecified
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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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.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/9976>
FFmpeg <https://ffmpeg.org>
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