mpeg2 mkv to x264 mp4 always heavy artifacts

[Selur]

Debug output already contains a details MediaInfo output:

General Count : 331 Count of stream of this kind : 1 Kind of stream : General Kind of stream : General Stream identifier : 0 Unique ID : 16122812076564479656541002724922483739 Unique ID : 16122812076564479656541002724922483739 (0xC2124021221F55AACF5DD17BB25E41B) Count of video streams : 1 Count of audio streams : 1 Count of menu streams : 1 Video_Format_List : MPEG Video Video_Format_WithHint_List : MPEG Video Codecs Video : MPEG Video Video_Language_List : English Audio_Format_List : AC-3 Audio_Format_WithHint_List : AC-3 Audio codecs : AC-3 Audio_Language_List : Czech Complete name : C:\Users\Filip\Desktop\Youtube filmy\serie2\1.mkv Folder name : C:\Users\Filip\Desktop\Youtube filmy\serie2 File name extension : 1.mkv File name : 1 File extension : mkv Format : Matroska Format : Matroska Format/Url : https://matroska.org/downloads/windows.html Format/Extensions usually used : mkv mk3d mka mks Commercial name : Matroska Format version : Version 2 File size : 2300138153 File size : 2.14 GiB File size : 2 GiB File size : 2.1 GiB File size : 2.14 GiB File size : 2.142 GiB Duration : 2969200 Duration : 49 min 29 s Duration : 49 min 29 s 200 ms Duration : 49 min 29 s Duration : 00:49:29.200 Duration : 00:49:29:05 Duration : 00:49:29.200 (00:49:29:05) Overall bit rate mode : VBR Overall bit rate mode : Variable Overall bit rate : 6197328 Overall bit rate : 6 197 kb/s Frame rate : 25.000 Frame rate : 25.000 FPS Frame count : 74230 Stream size : 1877345 Stream size : 1.79 MiB (0%) Stream size : 2 MiB Stream size : 1.8 MiB Stream size : 1.79 MiB Stream size : 1.790 MiB Stream size : 1.79 MiB (0%) Proportion of this stream : 0.00082 IsStreamable : Yes Encoded date : UTC 2021-01-10 15:17:58 File creation date : UTC 2021-01-10 15:17:58.773 File creation date (local) : 2021-01-10 16:17:58.773 File last modification date : UTC 2021-01-10 15:37:04.347 File last modification date (local) : 2021-01-10 16:37:04.347 Writing application : MakeMKV v1.15.3 win(x64-release) Writing application : MakeMKV v1.15.3 win(x64-release) Writing library : libmakemkv v1.15.3 (1.3.10/1.5.2) win(x64-release) Writing library : libmakemkv v1.15.3 (1.3.10/1.5.2) win(x64-release) Video Count : 379 Count of stream of this kind : 1 Kind of stream : Video Kind of stream : Video Stream identifier : 0 StreamOrder : 0 ID : 1 ID : 1 ID in the original source medium : 224 ID in the original source medium : 224 (0xE0) Unique ID : 1 Format : MPEG Video Format : MPEG Video Commercial name : MPEG-2 Video Format version : Version 2 Format profile : Main@Main Format settings : CustomMatrix / BVOP Format settings, BVOP : Yes Format settings, BVOP : Yes Format settings, Matrix : Custom Format settings, Matrix : Custom Format_Settings_Matrix_Data : 10111112121213131313141414141415151515151516161616161616171717171717171718181819181818191A1A1A1A191B1B1B1B1B1C1C1C1C1E1E1E1F1F21 Format settings, GOP : Variable Format settings, picture structure : Frame Internet media type : video/MPV Codec ID : V_MPEG2 Codec ID/Info : MPEG 1 or 2 Video Codec ID/Url : http://ffdshow-tryout.sourceforge.net/ Duration : 2969200.000000 Duration : 49 min 29 s Duration : 49 min 29 s 200 ms Duration : 49 min 29 s Duration : 00:49:29.200 Duration : 00:49:29:05 Duration : 00:49:29.200 (00:49:29:05) Bit rate mode : VBR Bit rate mode : Variable Bit rate : 6000280 Bit rate : 6 000 kb/s Maximum bit rate : 8500000 Maximum bit rate : 8 500 kb/s Width : 720 Width : 720 pixels Height : 576 Height : 576 pixels Sampled_Width : 720 Sampled_Height : 576 Pixel aspect ratio : 1.067 Display aspect ratio : 1.333 Display aspect ratio : 4:3 Frame rate mode : CFR Frame rate mode : Constant Frame rate : 25.000 Frame rate : 25.000 FPS Frame count : 74230 Standard : PAL Color space : YUV Chroma subsampling : 4:2:0 Chroma subsampling : 4:2:0 Bit depth : 8 Bit depth : 8 bits Scan type : Interlaced Scan type : Interlaced Scan order : TFF Scan order : Top Field First Compression mode : Lossy Compression mode : Lossy Bits/(Pixel*Frame) : 0.579 Delay : 0 Delay : 00:00:00.000 Delay, origin : Container Delay, origin : Container Delay_Original : 3600000 Delay_Original : 1 h 0 min Delay_Original : 1 h 0 min 0 s 0 ms Delay_Original : 1 h 0 min Delay_Original : 01:00:00.000 Delay_Original_Settings : drop_frame_flag=0 / closed_gop=1 / broken_link=0 Delay_Original_DropFrame : No Delay_Original_Source : Stream Time code of first frame : 01:00:00:00 Time code source : Group of pictures header Stream size : 2227004232 Stream size : 2.07 GiB (97%) Stream size : 2 GiB Stream size : 2.1 GiB Stream size : 2.07 GiB Stream size : 2.074 GiB Stream size : 2.07 GiB (97%) Proportion of this stream : 0.96820 Language : en Language : English Language : English Language : en Language : eng Language : en Default : No Default : No Forced : No Forced : No Buffer size : 229376 Original source medium : DVD-Video intra_dc_precision : 10 Audio Count : 312 Count of stream of this kind : 1 Kind of stream : Audio Kind of stream : Audio Stream identifier : 0 StreamOrder : 1 ID : 2 ID : 2 ID in the original source medium : 189-128 ID in the original source medium : 189 (0xBD)128 (0x80) Unique ID : 2 Format : AC-3 Format : AC-3 Format/Info : Audio Coding 3 Format/Url : https://en.wikipedia.org/wiki/AC3 Commercial name : Dolby Digital Commercial name : Dolby Digital Format settings, Endianness : Big Codec ID : A_AC3 Duration : 2969024.000000 Duration : 49 min 29 s Duration : 49 min 29 s 24 ms Duration : 49 min 29 s Duration : 00:49:29.024 Duration : 00:49:52:30 Duration : 00:49:29.024 (00:49:52:30) Bit rate mode : CBR Bit rate mode : Constant Bit rate : 192000 Bit rate : 192 kb/s Channel(s) : 2 Channel(s) : 2 channels Channel positions : Front: L R Channel positions : 2/0/0 Channel layout : L R Samples per frame : 1536 Sampling rate : 48000 Sampling rate : 48.0 kHz Samples count : 142513152 Frame rate : 31.250 Frame rate : 31.250 FPS (1536 SPF) Frame count : 92782 Compression mode : Lossy Compression mode : Lossy Delay : 0 Delay : 00:00:00.000 Delay, origin : Container Delay, origin : Container Delay relative to video : 0 Delay relative to video : 00:00:00.000 Stream size : 71256576 Stream size : 68.0 MiB (3%) Stream size : 68 MiB Stream size : 68 MiB Stream size : 68.0 MiB Stream size : 67.96 MiB Stream size : 68.0 MiB (3%) Proportion of this stream : 0.03098 Title : Stereo Language : cs Language : Czech Language : Czech Language : cs Language : ces Language : cs Service kind : CM Service kind : Complete Main Default : Yes Default : Yes Forced : No Forced : No Original source medium : DVD-Video bsid : 8 Dialog Normalization : -27 Dialog Normalization : -27 dB compr : -0.28 compr : -0.28 dB dynrng : -7.66 dynrng : -7.66 dB dsurmod : 0 acmod : 2 lfeon : 0 dialnorm_Average : -27 dialnorm_Average : -27 dB dialnorm_Minimum : -27 dialnorm_Minimum : -27 dB dialnorm_Maximum : -27 dialnorm_Maximum : -27 dB dialnorm_Count : 570 compr_Average : -4.12 compr_Average : -4.12 dB compr_Minimum : -10.10 compr_Minimum : -10.10 dB compr_Maximum : 0.53 compr_Maximum : 0.53 dB compr_Count : 532 dynrng_Average : 9.43 dynrng_Average : 9.43 dB dynrng_Minimum : -23.55 dynrng_Minimum : -23.55 dB dynrng_Maximum : 22.76 dynrng_Maximum : 22.76 dB dynrng_Count : 570 Menu Count : 100 Count of stream of this kind : 1 Kind of stream : Menu Kind of stream : Menu Stream identifier : 0 Chapters_Pos_Begin : 94 Chapters_Pos_End : 100 00:00:00.000 : en:Chapter 01 00:01:13.960 : en:Chapter 02 00:11:57.440 : en:Chapter 03 00:19:43.600 : en:Chapter 04 00:25:56.560 : en:Chapter 05 00:37:37.640 : en:Chapter 06

The used Vapoursynth script:

# Imports import os import sys import ctypes # Loading Support Files Dllref = ctypes.windll.LoadLibrary("C:/Program Files/Hybrid/64bit/vsfilters/Support/libfftw3f-3.dll") import vapoursynth as vs core = vs.get_core() # Import scripts folder scriptPath = 'C:/Program Files/Hybrid/64bit/vsscripts' sys.path.append(os.path.abspath(scriptPath)) # Loading Plugins core.std.LoadPlugin(path="C:/Program Files/Hybrid/64bit/vsfilters/GrainFilter/AddGrain/AddGrain.dll") core.std.LoadPlugin(path="C:/Program Files/Hybrid/64bit/vsfilters/DenoiseFilter/NEO_FFT3DFilter/neo-fft3d.dll") core.std.LoadPlugin(path="C:/Program Files/Hybrid/64bit/vsfilters/DenoiseFilter/DFTTest/DFTTest.dll") core.std.LoadPlugin(path="C:/Program Files/Hybrid/64bit/vsfilters/Support/EEDI3.dll") core.std.LoadPlugin(path="C:/Program Files/Hybrid/64bit/vsfilters/ResizeFilter/nnedi3/vsznedi3.dll") core.std.LoadPlugin(path="C:/Program Files/Hybrid/64bit/vsfilters/Support/libmvtools.dll") core.std.LoadPlugin(path="C:/Program Files/Hybrid/64bit/vsfilters/Support/temporalsoften.dll") core.std.LoadPlugin(path="C:/Program Files/Hybrid/64bit/vsfilters/Support/scenechange.dll") core.std.LoadPlugin(path="C:/Program Files/Hybrid/64bit/vsfilters/Support/fmtconv.dll") core.std.LoadPlugin(path="C:/Program Files/Hybrid/64bit/vsfilters/SourceFilter/LSmashSource/vslsmashsource.dll") # Import scripts import havsfunc # source: 'C:\Users\Filip\Desktop\Youtube filmy\serie2\1.mkv' # current color space: YUV420P8, bit depth: 8, resolution: 720x576, fps: 25, color matrix: 470bg, yuv luminance scale: limited, scanorder: top field first # Loading C:\Users\Filip\Desktop\Youtube filmy\serie2\1.mkv using LWLibavSource clip = core.lsmas.LWLibavSource(source="C:/Users/Filip/Desktop/Youtube filmy/serie2/1.mkv", format="YUV420P8", cache=0, prefer_hw=0) # making sure input color matrix is set as 470bg clip = core.resize.Point(clip, matrix_in_s="470bg",range_s="limited") # making sure frame rate is set to 25 clip = core.std.AssumeFPS(clip=clip, fpsnum=25, fpsden=1) # Setting color range to TV (limited) range. clip = core.std.SetFrameProp(clip=clip, prop="_ColorRange", intval=1) # setting field order to what QTGMC should assume (top field first) clip = core.std.SetFrameProp(clip=clip, prop="_FieldBased", intval=2) # Deinterlacing using QTGMC clip = havsfunc.QTGMC(Input=clip, Preset="Super Fast", TFF=True) # new fps: 50 # make sure content is preceived as frame based clip = core.std.SetFieldBased(clip, 0) clip = core.fmtc.resample(clip=clip, kernel="lanczos", w=2048, h=1536, interlaced=False, interlacedd=False) # adjusting output color from: YUV420P16 to YUV420P8 for x264Model (i420@8) clip = core.resize.Bicubic(clip=clip, format=vs.YUV420P8, range_s="limited") # set output frame rate to 50.000fps clip = core.std.AssumeFPS(clip=clip, fpsnum=50, fpsden=1) # Output clip.set_output()

looks fine.
So:
a. does the source mkv play fine in MPC-HC, VLC?
b. does the Vapoursynth Preview look fine? In case it doesn't it might be an issue with the decoder, and either turning on the hardware decoding of LWLibavSource (Filtering->Vapoursynth->Misc->Source->Libav hardware decoding mode) might help.
c. if the source plays fine and the preview also has no issues, I'll need a short sample which allows to reproduce the issue.

My guess is that it's not a decoder problem since during passthrough the decoder isn't used.

Cu Selur