Convert a folder of mp3 files to opus for audiobooks

convopus "input_folder" -b 32k

JPEG to JPEG XL

windows:

for %i in (*.jpg) do cjxl "%i" "%~ni.jxl"

linux:

for f in *.jpg; do cjxl "${f}" "${f%%.*}.jxl"; done

H.264 to AV1

windows:

for %i in (*.mp4) do ffmpeg -i "%i" -vcodec libsvtav1 -acodec libopus "%~ni.mkv"

linux:

for f in *.mp4; do ffmpeg -i "${f}" -vcodec libsvtav1 -acodec libopus "${f%%.*}.mkv"; done

SOCKS5 Python Proxy Checker

https://gist.github.com/D221/b77f09eea1098951b2420de3bc292005

Download youtube playlist using yt-dlp with index in filename

yt-dlp -f "bestvideo[height<=1080]+bestaudio" -o "%(playlist_index)s-%(title)s.%(ext)s" playlist_link

Other FFmpeg stuff

# webm -> ogg (containing opus from yt-dlp)
ffmpeg -i input.webm -acodec copy output.ogg
# any container to webm/mkv
ffmpeg -i input.mp4 -acodec copy -vcodec copy output.webm
# trim any video without encoding
ffmpeg -ss 00:00:00 -i input.mp4 -to 00:00:00 -c copy output.mp4