Sigma Quick Play [Recording/Encoding Experiment] -- 29 April 2021

Channel:

Math Nerd Gamer

Subscribers:

161

Published on April 30, 2021 9:39:53 PM ● Video Link: https://www.youtube.com/watch?v=JdmTN0rxLYQ

Game:

Overwatch 2 (2023)

Duration: 5:55

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By the way, I have no idea how to play Sigma. lol

𝗘𝘅𝗽𝗲𝗿𝗶𝗺𝗲𝗻𝘁 𝗗𝗲𝘁𝗮𝗶𝗹𝘀
I tried something new with this just to see how it would work.
I recorded using OBS Studio and NVENC's "Lossless" preset and upscaled to 4K using NVENC's lossless preset. However, since DaVinci Resolve wouldn't render the video, I had to manually "edit" the video using ffmpeg (commands in the "Technical Details" section below.)

The benefit of using the "Lossless" preset (actually, more like "minimal compression" because it's not truly lossless) is that GPU utilization is actually lower (even though it's juggling a *lot* of data, it isn't spending much time actually processing it), enabling me to use higher game settings without the framerate loss I would have from encoding at lower bitrates due to the GPU having to actually process the frames.

Technical Details:

Original recording: 1080p60 @ ~406 Mbps [Turing NVENC "Lossless"]

Upscaled to: 4K60 @ ~ 1156 Mbps [ffmpeg, Turing NVENC "Lossless"]
ffmpeg command: ffmpeg -i clip_1080p.mp4 -af "afade=in:0:d=0.75" -vf "scale=3840x2160:flags=lanczos,fade=in:0:d=0.75" -r 60 -c:v h264_nvenc -preset lossless clip_4K.mp4

Intro clip: 4K60 @ 56 Mbps [Created in Adobe After Effects]

Edited and rendered using ffmpeg: 4K60 @ 250 Mbps (Actual Final Bitrate: ~233 Mbps)
ffmpeg -i ..\..\..\intro.mp4 -i clip_4K.mp4 -filter_complex "[0:v] [0:a] [1:v] [1:a] concat=n=2:v=1:a=1 [v] [a]" -map "[v]" -map "[a]" -c:v h264_nvenc -preset slow -profile high -b:v 250M -maxrate 250M -bufsize 5M -c:a aac -b:a 192k ..\final\sigma_qp.mp4

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