47 lines
1.7 KiB
Plaintext
47 lines
1.7 KiB
Plaintext
; TODO: More ffmpeg, yt-dlp
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% nixos, nixos-rebuild
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# Rebuild a flake system derivation
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sudo nixos-rebuild <type> --flake .#<flake>
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$ type: echo -e "switch\nbuild\nboot"
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$ flake: echo -e "nixinator\nnixtop"
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% nixos, nix-store, closure, dependency
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# Find out why a package is included in the closure when building the system derivation
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nix why-depends /run/current-system nixpkgs#<package>
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; TODO: Autocomplete executable, list everything in path
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% nixos, nix-store, storepath, link
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# Find the storepath of an executable in the users path
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readlink -f $(which <executable>)
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; TODO: Autocomplete executable, list everything in path
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% nixos, nix-store, storepath, libraries
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# Find the wanted dynamic libraries of an executable in the users path
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ldd $(readlink -f $(which <executable>))
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% shell, process
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# Launch a detached process with suppressed output
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<command> &>/dev/null &
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; TODO: Filter out directories from input autocomplete (if there are no directories basic grep doesn't work, always needs a pattern)
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% ffmpeg, slowmo
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# Create a slow motion version of a video with interpolated/blended frames
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ffmpeg -i <input> -filter:v "minterpolate='mi_mode=mci:mc_mode=aobmc:vsbmc=1:fps=<doublefps>',setpts=2*PTS" output.mp4
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$ input: exa -1
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% ffmpeg, cropdetect
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# Detect black bar dimensions automatically by looking at the first 10 frames
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ffmpeg -i <input> -vframes 10 -vf cropdetect -f null -
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$ input: exa -1
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% ffmpeg, cropdetect, preview
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# Preview video with applied crop settings
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ffplay -vf crop=<width>:<height>:<x>:<y> <input>
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$ input: exa -1
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% ffmpeg, cropdetect, render
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# Re-encode the video with applied crop settings
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ffmpeg -i <input> -vf crop=<width>:<height>:<x>:<y> -c:a copy output.mp4
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$ input: exa -1
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