Deinterlacing outputs small file only

[Selur]

Looked at the debug output:
the Avisynth script:

ClearAutoloadDirs()
SetFilterMTMode("DEFAULT_MT_MODE", MT_MULTI_INSTANCE)
LoadPlugin("C:\PROGRA~1\Hybrid\32bit\AVISYN~1\LSMASHSource.dll")
LoadPlugin("C:\PROGRA~1\Hybrid\32bit\AVISYN~1\RgTools.dll")
LoadPlugin("C:\PROGRA~1\Hybrid\32bit\AVISYN~1\masktools2.dll")
LoadPlugin("C:\PROGRA~1\Hybrid\32bit\AVISYN~1\mvtools2.dll")
LoadPlugin("C:\PROGRA~1\Hybrid\32bit\AVISYN~1\neo-fft3d.dll")
LoadPlugin("C:\PROGRA~1\Hybrid\32bit\AVISYN~1\nnedi3.dll")
LoadPlugin("C:\PROGRA~1\Hybrid\32bit\AVISYN~1\svpflow1.dll")
LoadPlugin("C:\PROGRA~1\Hybrid\32bit\AVISYN~1\svpflow2.dll")
Import("C:\Program Files\Hybrid\32bit\avisynthPlugins\mtmodes.avsi")
Import("C:\Program Files\Hybrid\32bit\avisynthPlugins\QTGMC.avsi")
Import("C:\Program Files\Hybrid\32bit\avisynthPlugins\Zs_RF_Shared.avsi")
Import("C:\Program Files\Hybrid\32bit\avisynthPlugins\InterFrame2.avsi")
# loading source: C:\Users\Johan\Videos\capture-lagarith.avi
# color sampling YUY2@8, matrix: bt601, scantyp: top field first, luminance scale: limited
LWLibavVideoSource("C:\Users\Johan\Videos\CAPTUR~1.AVI",cache=false,dr=true,format="YUV422P8", prefer_hw=0)
# current resolution: 640x480
# deinterlacing
AssumeTFF()
QTGMC(Preset="Placebo", ediThreads=2)
ConvertToYV12(interlaced=false)
InterFrame(NewNum=50,NewDen=1,Cores=16)
# filtering
# setting output fps to 50.000fps
AssumeFPS(50,1)
PreFetch(4)
#  output: color sampling YV12@8, matrix: bt601, scantyp: progressive, luminance scale: limited
return last

looks fine.

1st pass Encoding call:

"C:\Program Files\Hybrid\32bit\ffmpeg.exe" -y -loglevel fatal -noautorotate -nostdin -threads 8 -i "C:\Users\Johan\AppData\Local\Temp\encodingTempSynthSkript_2023-08-07@14_10_50_6310_0.avs" -an -sn -vf zscale=rangein=tv:range=tv -pix_fmt yuv420p -vsync 0 -f rawvideo - | "C:\Program Files\Hybrid\64bit\x264.exe" --preset veryfast --pass 1 --bitrate 15000 --profile high --level 4.1 --direct auto --b-adapt 0 --sync-lookahead 12 --qcomp 0.50 --rc-lookahead 40 --qpmax 51 --aq-mode 0 --sar 1:1 --non-deterministic --range tv --stats "C:\Users\Johan\AppData\Local\Temp\capture-lagarith_new_1_2023-08-07@14_10_50_6310_03.stats" --demuxer raw --input-res 640x480 --input-csp i420 --input-range tv --input-depth 8 --fps 50/1 --output-depth 8 --output NUL -

looks fine too and finshed without reporting any issues:

raw [info]: 640x480p 1:1 @ 50/1 fps (cfr)
x264 [info]: using SAR=1/1
x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 AVX512
x264 [info]: profile Main, level 4.1, 4:2:0, 8-bit
1 frames: 0.10 fps, 34667.60 kb/s
....
x264 [info]: frame I:2     Avg QP: 8.33  size:100846
x264 [info]: frame P:75    Avg QP: 9.44  size: 73977
x264 [info]: frame B:219   Avg QP:13.04  size: 23932
x264 [info]: consecutive B-frames:  1.4%  0.0%  0.0% 98.6%
x264 [info]: mb I  I16..4:  2.2%  0.0% 97.8%
x264 [info]: mb P  I16..4: 18.7%  0.0%  0.0%  P16..4: 81.3%  0.0%  0.0%  0.0%  0.0%    skip: 0.0%
x264 [info]: mb B  I16..4:  0.5%  0.0%  0.0%  B16..8: 59.6%  0.0%  0.0%  direct:39.8%  skip: 0.1%  L0:12.6% L1:17.5% BI:69.9%
x264 [info]: final ratefactor: 3.73
x264 [info]: direct mvs  spatial:96.8% temporal:3.2%
x264 [info]: coded y,uvDC,uvAC intra: 100.0% 100.0% 99.9% inter: 82.7% 99.3% 83.5%
x264 [info]: i16 v,h,dc,p: 13%  5% 49% 33%
x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 19% 11% 12%  8% 10% 11%  9% 11%  8%
x264 [info]: i8c dc,h,v,p: 62% 13% 15% 10%
x264 [info]: Weighted P-Frames: Y:0.0% UV:0.0%
x264 [info]: kb/s:14852.81

encoded 296 frames, 7.02 fps, 14852.81 kb/s

2nd pass encoding call:

"C:\Program Files\Hybrid\32bit\ffmpeg.exe" -y -loglevel fatal -noautorotate -nostdin -threads 8 -i "C:\Users\Johan\AppData\Local\Temp\encodingTempSynthSkript_2023-08-07@14_10_50_6310_0.avs" -an -sn -vf zscale=rangein=tv:range=tv -pix_fmt yuv420p -vsync 0 -f rawvideo - | "C:\Program Files\Hybrid\64bit\x264.exe" --preset veryfast --pass 2 --bitrate 15000 --profile high --level 4.1 --ref 3 --direct auto --b-adapt 0 --sync-lookahead 12 --qcomp 0.50 --rc-lookahead 40 --qpmax 51 --partitions i4x4,p8x8,b8x8 --no-fast-pskip --subme 5 --aq-mode 0 --vbv-maxrate 62500 --vbv-bufsize 78125 --sar 1:1 --non-deterministic --range tv --colormatrix bt470bg --stats "C:\Users\Johan\AppData\Local\Temp\capture-lagarith_new_1_2023-08-07@14_10_50_6310_03.stats" --demuxer raw --input-res 640x480 --input-csp i420 --input-range tv --input-depth 8 --fps 50/1 --output-depth 8 --output "C:\Users\Johan\AppData\Local\Temp\2023-08-07@14_10_50_6310_04.264" -

seems correct and also finished without a problem:

x264 output: raw [info]: 640x480p 1:1 @ 50/1 fps (cfr)
x264 [info]: using SAR=1/1
x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 AVX512
x264 [info]: profile High, level 4.1, 4:2:0, 8-bit
1 frames: 0.25 fps, 46090.80 kb/s
...
x264 [info]: frame I:2     Avg QP: 7.10  size:111554
x264 [info]: frame P:75    Avg QP: 9.29  size: 75582
x264 [info]: frame B:219   Avg QP:12.89  size: 23932
x264 [info]: consecutive B-frames:  1.4%  0.0%  0.0% 98.6%
x264 [info]: mb I  I16..4:  0.9% 10.9% 88.2%
x264 [info]: mb P  I16..4:  2.5%  0.0% 52.5%  P16..4:  7.9% 15.5% 21.6%  0.0%  0.0%    skip: 0.0%
x264 [info]: mb B  I16..4:  0.2%  0.0%  1.3%  B16..8: 29.6% 28.1% 10.6%  direct:30.2%  skip: 0.0%  L0:21.4% L1:22.8% BI:55.8%
x264 [info]: 8x8 transform intra:0.5% inter:24.0%
x264 [info]: direct mvs  spatial:97.7% temporal:2.3%
x264 [info]: coded y,uvDC,uvAC intra: 100.0% 100.0% 100.0% inter: 77.0% 99.3% 84.1%
x264 [info]: i16 v,h,dc,p:  5%  3% 57% 35%
x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21%  7% 27%  8%  5%  8%  7% 10%  8%
x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 19% 10% 17%  9% 10% 11%  7% 10%  7%
x264 [info]: i8c dc,h,v,p: 59% 14% 16% 11%
x264 [info]: Weighted P-Frames: Y:0.0% UV:0.0%
x264 [info]: ref P L0: 81.5% 14.1%  4.4%
x264 [info]: ref B L0: 97.4%  2.4%  0.2%
x264 [info]: ref B L1: 98.7%  1.3%
x264 [info]: kb/s:15044.38

encoded 296 frames, 6.67 fps, 15044.38 kb/s
...
created C:\Users\Johan\AppData\Local\Temp\2023-08-07@14_10_50_6310_04.264 (10.6171 MB)

Muxing call seems fine too:

"C:\Program Files\Hybrid\64bit\ffmpeg.exe" -y  -r 50/1 -i "C:\Users\Johan\AppData\Local\Temp\2023-08-07@14_10_50_6310__07.mkv" -i "C:\Users\Johan\AppData\Local\Temp\iId_9_aid_1_2023-08-07@14_10_50_6310_01.mov" -vcodec copy -acodec copy -metadata encoding_tool="Hybrid 2023.03.17.1" -map 0:0 -map 1:0  -bsf:v h264_mp4toannexb -aspect 640:480 -r 50/1 -f avi "C:\Users\Johan\Videos\capture-lagarith_new.avi"

I strongly advice NOT to use .avi for H.264 as container, better use .mkv or .mp4, multiple b-frames, open-gop and similar are 'tricky' in .avi and some players will not support it.

Input #0, matroska,webm, from 'C:\Users\Johan\AppData\Local\Temp\2023-08-07@14_10_50_6310__07.mkv':
  Metadata:
    encoder         : libebml v1.4.4 + libmatroska v1.7.1
    creation_time   : 2023-08-07T12:12:18.000000Z
  Duration: 00:00:05.92, start: 0.000000, bitrate: 15055 kb/s
  Stream #0:0: Video: h264 (High), yuv420p(tv, bt470bg/unknown/unknown, progressive), 640x480 [SAR 1:1 DAR 4:3], 50 fps, 50 tbr, 1k tbn (default) (forced)
    Metadata:
      BPS             : 15044386
      DURATION        : 00:00:05.920000000
      NUMBER_OF_FRAMES: 296
      NUMBER_OF_BYTES : 11132846
      _STATISTICS_WRITING_APP: mkvmerge v74.0.0 ('You Oughta Know') 64-bit
      _STATISTICS_WRITING_DATE_UTC: 2023-08-07 12:12:18
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES

Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\Users\Johan\AppData\Local\Temp\iId_9_aid_1_2023-08-07@14_10_50_6310_01.mov':
  Metadata:
    major_brand     : qt  
    minor_version   : 512
    compatible_brands: qt  
    encoder         : Lavf60.4.100
  Duration: 00:00:06.69, start: 0.000000, bitrate: 64 kb/s

Stream #1:0[0x1]: Audio: pcm_s8 (sowt / 0x74776F73), 8000 Hz, mono, u8, 64 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
      vendor_id       : [0][0][0][0]
[vost#0:0/copy @ 000001c3882855c0] Overriding aspect ratio with stream copy may produce invalid files
[out#0/avi @ 000001c38828a780] Could not write header (incorrect codec parameters ?): Operation not permitted
[aost#0:1/copy @ 000001c388286280] Error initializing output stream:
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #1:0 -> #0:1 (copy)

Last message repeated 1 times
process finished with exitcode: 1 and exitStatus: 0
process finished with exitcode: 1 and exitStatus: 0

from the looks of it, ffmpeg does not like the audio.

Can you share the source file with me, so I can try to reproduce the issue?

Cu Selur

Ps.: As a side note, you might want to switch to Vapoursynth or Avisynth 64bit, instead of using 32bit Avisynth.