From 6f43f8994dbc1d91eb18de7ee9bda3c08cf4a0e7 Mon Sep 17 00:00:00 2001
From: iamdamosuzuki <ultraworld@Ultras-iMac.local>
Date: Tue, 3 Nov 2020 11:40:35 -0800
Subject: [PATCH] created colorizer script

---
 bash_scripts/colorizer.sh | 80 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100755 bash_scripts/colorizer.sh

diff --git a/bash_scripts/colorizer.sh b/bash_scripts/colorizer.sh
new file mode 100755
index 0000000..f7428d2
--- /dev/null
+++ b/bash_scripts/colorizer.sh
@@ -0,0 +1,80 @@
+#!/usr/bin/env bash
+
+# Colorize a video using colorchanelmixer
+
+_usage(){
+cat <<EOF
+$(basename "${0}")
+  Usage
+   $(basename "${0}") [OPTIONS] INPUT_FILE COLOR
+  Options
+   -h  display this help
+   -p  previews in FFplay
+   -s  saves to file with FFmpeg
+
+  Notes
+  INPUT_FILE: File to be effected
+  COLOR: red, orange, yellow, green, blue, purple, white or black
+
+  Outcome
+   Colorize a video using colorchanelmixer
+   dependencies: ffmpeg 4.3 or later
+EOF
+}
+
+color="${3:-blue}"    # Color channel mixer color
+
+   # Update color variable according to user input
+   # This makes the matching case insensitive
+
+if [[ $(tr "[:upper:]" "[:lower:]" <<<"$color")  = "blue" ]]
+  then
+    colorNums="0:0:0:0:0:0:0:0:2:0:0:0"
+elif [[ $(tr "[:upper:]" "[:lower:]" <<<"$color")  = "green" ]]
+  then
+    colorNums="0:0:0:0:2:0:0:0:0:0:0:0"
+elif [[ $(tr "[:upper:]" "[:lower:]" <<<"$color")  = "red" ]]
+  then
+    colorNums="2:0:0:0:0:0:0:0:0:0:0:0"
+elif [[ $(tr "[:upper:]" "[:lower:]" <<<"$color")  = "purple" ]]
+  then
+    colorNums="2:0:0:0:0:0:0:0:2:0:0:0"
+elif [[ $(tr "[:upper:]" "[:lower:]" <<<"$color")  = "orange" ]]
+  then
+    colorNums="2:0:0:0:.5:0:0:0:0:0:0:0"
+elif [[ $(tr "[:upper:]" "[:lower:]" <<<"$color")  = "yellow" ]]
+  then
+    colorNums="2:0:0:0:2:0:0:0:0:0:0:0"
+elif [[ $(tr "[:upper:]" "[:lower:]" <<<"$color")  = "white" ]]
+  then
+    colorNums="2:2:2:2:2:2:2:2:2:2:2:2"
+elif [[ $(tr "[:upper:]" "[:lower:]" <<<"$color")  = "black" ]]
+  then
+    colorNums="2:2:2:2:2:2:2:2:2:2:2:2,lutyuv=y=negval"
+else
+   printf "ERROR: Selected Color must be red, orange, yellow, green, blue, purple, white or black \n" >&2
+   exit
+fi
+
+  # Build filter string
+filterString="colorchannelmixer=${colorNums},format=yuv422p10le"
+
+while getopts "hps" OPT ; do
+    case "${OPT}" in
+      h) _usage ; exit 0
+        ;;
+      p)
+      ffmpeg -hide_banner -i "${2}" -c:v prores -profile:v 3 -vf $filterString -f matroska - | ffplay -
+      printf "\n\n*******START FFPLAY COMMANDS*******\n" >&2
+      printf "ffmpeg -hide_banner -i '$2' -c:v prores -vf '${filterString}' -f matroska - | ffplay - \n" >&2
+      printf "********END FFPLAY COMMANDS********\n\n " >&2
+        ;;
+      s)
+      ffmpeg -hide_banner -i "${2}" -c:v prores -profile:v 3 -vf $filterString "${2%.*}_colorize_$color.mov"
+      printf "\n\n*******START FFMPEG COMMANDS*******\n" >&2
+      printf "ffmpeg -hide_banner -i '$2' -c:v prores -profile:v 3 -vf $filterString '${2%.*}_colorize_$color.mov' \n" >&2
+      printf "********END FFMPEG COMMANDS********\n\n " >&2
+        ;;
+      *) echo "bad option -${OPTARG}" ; _usage ; exit 1 ;
+    esac
+  done