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Old 2023-07-14, 10:26 PM
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xavier242 xavier242 is offline
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Re: processing notes for Guns N' Roses 2023-06-24 Glastonbury 2023 Festival, Pilton, UK (PRO 1080p50)

process notes:
guns_n_roses-glastonbury_(2023)-ddc-hdr-2160p-h265-2023-srp.mkv
rename:
gnrg2023.mkv

v01
HEVC 10bit 4:2:0 (Type 2) 24900MB 3840x2160p 24200Kbps 02:27:32.19 50fps 16:9 Bits/(Pixel*Frame)=0.058 AAC LC 192Kbps 48KHz
442618 max frame num (0 is a frame)
442619 frames total
This is likely real video- 50 unique frames per second from the cameras. Modern cameras can do 50p, not limited to 25i anymore (pros don't typically use post-interpolation as it takes too long)

Demux with gMKVExtractGUI 2.1.0.0 (MKVToolNix 9.6.0) to make:
gnrg2023_track1_und.hevc
gnrg2023_track2_eng_DELAY 12ms.aac

Run DGIndexNV.exe with gnrg2023_track1_und.hevc to create gnrg2023_track1_und.dgi.

This is a rare case where only one Avisynth script file was needed (when using TVEAI, 2 are needed for pre and post processing). .avs script files are created with any text editor (Notepad).

Note the use of DPID to downsize. This is an intelligent resizer that doesn't toss detail when downscaling (unlike the others). It uses a crapload of CPU. Multi-instance is a must.

01.avs
SetFilterMTMode("DEFAULT_MT_MODE", MT_MULTI_INSTANCE)
SetFilterMTMode("DGSource", MT_SERIALIZED)
DGSource("gnrg2023_track1_und.dgi", deinterlace=0)
#ConvertToYV12(interlaced=false)
DPID(1920,1080,lambdaU=1.7,lambdaV=1.7,lambdaY=1.7)
#Tweak(bright=-3,cont=1.23,sat=1.00,hue=0)
#CAS(sharpness=0.6)
#vsMSharpen(threshold=6.0, strength=30.0, mask=false, luma=true, chroma=true)
prefetch(8)

In Virtualdub2 x264 8bit dialog:
x264 8bit Slower Film High L4.2 YUV 4:2:0 SAR 1/1 CRF 17.4

Make sure to set Pixel Format:
Color space: Rec. 709 (HD)
Component range: Limited (Y:16-235)

Save video as MP4 (MPEG-4 Part 14):
01-gnrg2023-DPID1.7-crf17.4.mp4

Tweak, CAS, and vsMSharpen were not used (the "#" marks a comment). They are sometimes needed when working with TVEAI and DVD video.

It's compressing now at about 12fps.. I'll see how it looks tomorrow.
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