Deoldify Vapoursynth filter

[Dan64]

I cannot debug the formatting of "y4m".
I perfomed another test.

Test 4: vsPipe using raw output.

D:\PProjects\vs-deoldify_dev>"D:\Programs\Hybrid\64bit\Vapoursynth\vspipe.exe" "D:\PProjects\vs-deoldify_dev\encoding.vpy" -   | "D:\Programs\Hybrid\64bit\x265.exe" --input-res 1280x692 --fps 23.976 - -o "D:\PProjects\vs-deoldify_dev\VideoTest1_720p-1.265"
yuv  [info]: 1280x692 fps 23976/1000 i420p8 unknown frame count
raw  [info]: output file: D:\PProjects\vs-deoldify_dev\VideoTest1_720p-1.265
x265 [info]: HEVC encoder version 3.5+115-88fd6d3ad
x265 [info]: build info [Windows][GCC 13.2.0][64 bit] 8bit+10bit+12bit
x265 [info]: using cpu capabilities: MMX2 SSE2Fast LZCNT SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
x265 [info]: Main profile, Level-3.1 (Main tier)
x265 [info]: Thread pool created using 20 threads
x265 [info]: Slices                              : 1
x265 [info]: frame threads / pool features       : 4 / wpp(11 rows)
x265 [warning]: Source height < 720p; disabling lookahead-slices
x265 [info]: Coding QT: max CU size, min CU size : 64 / 8
x265 [info]: Residual QT: max TU size, max depth : 32 / 1 inter / 1 intra
x265 [info]: ME / range / subpel / merge         : hex / 57 / 2 / 3
x265 [info]: Keyframe min / max / scenecut / bias  : 23 / 250 / 40 / 5.00
x265 [info]: Lookahead / bframes / badapt        : 20 / 4 / 2
x265 [info]: b-pyramid / weightp / weightb       : 1 / 1 / 0
x265 [info]: References / ref-limit  cu / depth  : 3 / off / on
x265 [info]: AQ: mode / str / qg-size / cu-tree  : 2 / 1.0 / 32 / 1
x265 [info]: Rate Control / qCompress            : CRF-28.0 / 0.60
x265 [info]: tools: rd=3 psy-rd=2.00 early-skip rskip mode=1 signhide tmvp
x265 [info]: tools: b-intra strong-intra-smoothing deblock sao

Information: Note: NumExpr detected 20 cores but "NUMEXPR_MAX_THREADS" not set, so enforcing safe limit of 8.
Information: NumExpr defaulting to 8 threads.
Output 2594 frames in 419.82 seconds (6.18 fps)
x265 [info]: frame I:     24, Avg QP:34.23  kb/s: 32112.72
x265 [info]: frame P:   2205, Avg QP:36.14  kb/s: 13681.62
x265 [info]: frame B:   2959, Avg QP:38.59  kb/s: 16072.83
x265 [info]: Weighted P-Frames: Y:3.4% UV:3.3%

encoded 5188 frames in 440.83s (11.77 fps), 15130.72 kb/s, Avg QP:37.53

and also vsPipe worked using raw output.

What is interesting the the pipe version almost doubled the encoding speed

ffmpeg with pipe:
encoded 5188 frames in 446.18s (11.63 fps), 15130.72 kb/s, Avg QP:37.53

vsPipe:
encoded 5188 frames in 440.83s (11.77 fps), 15130.72 kb/s, Avg QP:37.53

ffmpeg.exe -f vapoursynth:
encoded 2594 frames in 416.57s (6.23 fps), 463.80 kb/s, Avg QP:32.24

This is a big improvement! 
The encoding speed of Jupiter version of Deoldify on my PC is about 5.6 fps

Dan