[HELP] Encoding error when trying to deinterlace and denoise DVD MKV video to x264

[DannyHicks]

I am trying to deinterlace (QTGMC) a video file and denoise it as well, with the least quality loss.

1. I imported an MKV file, which is interlaced and from a DVD (25i, PAL).

2. I set Base > Processing > Video to "x264".

3. I set x264 > Base > General Settings > Encoding mode to "constant quantizer (1-pass)", and Quantization strength to "1", in order to get a (close to) lossless result.

4. I enabled Filtering > Vapoursynth > DeNoise > KNLMeansCL, set Distance to "20", Search radius to "5" and Similarity radius to "1". The other values are left by default.

5. I enabled Filtering > Vapoursynth > DeNoise > TTempSmooth, set Max. temporal radius to "7", Strength to "8". The other values are left by default.

6. I saved the new file as a new MKV file.Please, read the 'Infos needed to fix&reproduce bugs,..'-sticky before you post about a problem.

The process crashes within a few seconds, at 02_video: encoding video to MPEG-4 AVC with x264 (1-pass).

Example file: https://drive.google.com/file/d/1X8vu9Sy...sp=sharing


EDIT: It also goes wrong with the same kind of error if, during step 3, I set encoding mode and quantization strength to CRF 1.