Blitz (2024)(1080p ATVP-4KWEBRip DV+HDR10 AV1-10bit E-AC3 5 1 Atmos)[cHorse]

The stories of a group of Londoners during the German bombing campaign of the British capital during World War II.

Year: 2024
Duration: 120 min
Release date: Wednesday 6th November 2024
Genre: Action, Drama, History, War

    

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6.7/10
(1865 Votes)

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Stars:
Saoirse Ronan, Harris Dickinson, Benjamin Clémentine, Kathy Burke, Paul Weller, Stephen Graham, Elliott Heffernan, John Mackay

VMAF: 98.45
VIDEO: AV1 (SVT, PSY) 10bit, crf20, preset 5, tune SIMM, 1.12Mbps, 973MB (original: 24Mbps, 20.8GB)
VIDEO SIZE REDUCTION: 95%
AUDIO: E-AC3 5.1 Atmos
SUBITITLES: 40+ (see source for listing)
SOURCE: Blitz.2024.2160p.ATVP.WEB-DL.DDP5.1.Atmos.DV.HDR.H.265-FLUX (20.8GB
ENCODE SETTINGS (in addition, see preset documentation/notes above and below):
AQ mode = 2 / variance boost strength = 2 / octile = 6 / curve = regular
Sharpness = 0 / QP scale compress strength = 1 / Frame low-luma bias = 0 / Temporal Filtering Strength = 1 / Key Frame TF Strength = 1
ENCODE NOTES: None.
SVT-AV1-PSY: After extensive testing between stock AOM-AV1 & SVT-AV1 vs. SVT-AV1-PSY, this encoder will be using SVT-AV1-PSY. It has different default settings than 10bit for 10bit, disabled film denoising, improved tuning, enabled quantization matrices, enabled variance boost, etc… PSY documentation
AV1 PRESETS: After more testing and comparisons with HEVC at similar bitrates and crf values across 20 different movies from 80s to today, the crf value usage will remain fairly similar to what was used with HEVC. Instead of slow/medium/fast settings in HEVC there are “presets” in AV1 and each enables/disables certain tools the encoder uses. Again, after a lot of testing, it&s been decided that preset 5 will be used for a variety of reasons unless denoted otherwise (p4 = preset 4). Because the AV1 encoder has yet to include settings readable by mediainfo (annoying, yes!) here is the AV1 preset documentation. See column FIVE. AV1 “preset” documentation 
VMAF: Like all quality metric measurements, it is far from perfect or even completely finished - that said, it&s pretty darn good overall. The proprietary old “SSIM SCORE” number (which was the B-frame SSIM Mean - 0.09x1042) used at a metric for previous encodes will be replaced with VMAF (revision 3.0) mean scores in an effort to be as transparent as possible about “perceived” quality. VMAF tests are run at subsample=60 over the full length of the original and encoded video and takes hours to process post-encode for every single video. VMAF documentation
AV1 (KNOWN) DEVICE COMPATIBILITY: Amazon FireStick 4K Max, Dune HD Homatics Box R 4K Plus, RockTek G2 4K Android TV Box, M3 Chip Macs and beyond (hardware decoding), etc...
Two bonus AV1 deep dives: HERE and HERE.
Finally, the usecase, computation power, priorities of the encoder, the target audience, and the aim of the production, the target location (network, storage, archive, etc), the source video (anime, movies, amateur videos, documentaries, genres of the movies, color distribution), target quality and target size drastically change among people. 
Enjoy!