ffmpeg cheats

config/navi/christoph.cheat

@@ -10,20 +10,37 @@ $ flake: echo -e "nixinator\nnixtop"
 # Find out why a package is included in the closure when building the system derivation
 nix why-depends /run/current-system nixpkgs#<package>
 
-
+; TODO: Autocomplete executable, list everything in path
 % nixos, nix-store, storepath, link
 # Find the storepath of an executable in the users path
 readlink -f $(which <executable>)
 
+; TODO: Autocomplete executable, list everything in path
 % nixos, nix-store, storepath, libraries
 # Find the wanted dynamic libraries of an executable in the users path
 ldd $(readlink -f $(which <executable>))
 
-
 % shell, process
 # Launch a detached process with suppressed output
 <command> &>/dev/null &
 
+; TODO: Filter out directories from input autocomplete (if there are no directories basic grep doesn't work, always needs a pattern)
 % ffmpeg, slowmo
 # Create a slow motion version of a video with interpolated/blended frames
-ffmpeg -i <input>.mp4 -filter:v "minterpolate='mi_mode=mci:mc_mode=aobmc:vsbmc=1:fps=<doublefps>',setpts=2*PTS" output.mp4
+ffmpeg -i <input> -filter:v "minterpolate='mi_mode=mci:mc_mode=aobmc:vsbmc=1:fps=<doublefps>',setpts=2*PTS" output.mp4
+$ input: exa -1
+
+% ffmpeg, cropdetect
+# Detect black bar dimensions automatically by looking at the first 10 frames
+ffmpeg -i <input> -vframes 10 -vf cropdetect -f null -
+$ input: exa -1
+
+% ffmpeg, cropdetect, preview
+# Preview video with applied crop settings
+ffplay -vf crop=<width>:<height>:<x>:<y> <input>
+$ input: exa -1
+
+% ffmpeg, cropdetect, render
+# Re-encode the video with applied crop settings
+ffmpeg -i <input> -vf crop=<width>:<height>:<x>:<y> -c:a copy output.mp4
+$ input: exa -1