Batch rename of video files after finding its resolution height

Question

Trying my first script, not going smoothly. Maybe someone knows of a program or can help point in the right direction. I want to sequentially find a large archive of video files resolutions - height only (I know 2 ways to accomplish this, using ffprobe and mediainfo); if 720 or 1080 append as a suffix, previous to the extension. If the file is not 720 or 1080 separate into 2 directories (650+ & 649-). I know how to find the resolution, create directories, move and rename files. I am having trouble specifically with the multiple files in sequential order, if/and/or use and how to pipe for the renaming with either ffprobe or mediainfo. Thanks.

llogan · Answer

This simplistic example should get you started:
#!/bin/bash

if [ ! -d "650+" ] && [ ! -d "649-" ]; then
  mkdir "650+" "649-"
fi

for f in *.mp4
do
height=$(ffprobe -v error -show_entries stream=height -of csv=p=0 "$f")
if [ "$height" -eq 1080 ] || [ "$height" -eq 720 ]; then
  mv "$f" "${f%.*}_$height.${f##*.}"
fi
if [ "$height" -lt 650 ]; then
  mv "$f" "649-"
else
  mv "$f" "650+"
fi

done

As you can see the logic isn't perfect because it only moves videos with a height less than 720 px into the appropriate directories, but it shows the basics. (Ran out of time to make it better due to a pending meeting.) Also, it's not recursive. Wasn't sure if that was a requirement.
Also see:

Getting width x height with ffprobe
Bash parameter expansion - helpful for renaming
Bash comparison operators
ShellCheck - to check for script errors and to provide suggestions

Batch rename of video files after finding its resolution height

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