Add an mkv to mp4 script

bin/convert-video-mkv-to-mp4

@@ -0,0 +1,64 @@
+#!/usr/bin/env bash
+
+# This is for reencoding an mkv video to mp4 using an mpeg4 encoder.
+# Can optionally compress the video.
+
+if which tput >/dev/null 2>&1; then
+    ncolors=$(tput colors)
+fi
+if [ -t 1 ] && [ -n "$ncolors" ] && [ "$ncolors" -ge 8 ]; then
+    RED="$(tput setaf 1)"
+    GREEN="$(tput setaf 2)"
+    YELLOW="$(tput setaf 3)"
+    BLUE="$(tput setaf 4)"
+    MAGENTA="$(tput setaf 5)"
+    CYAN="$(tput setaf 6)"
+    BOLD="$(tput bold)"
+    NORMAL="$(tput sgr0)"
+else
+    RED=""
+    GREEN=""
+    YELLOW=""
+    BLUE=""
+    MAGENTA=""
+    CYAN=""
+    BOLD=""
+    NORMAL=""
+fi
+
+if [[ $1 == "" || $2 == "" ]]; then
+    printf "${BOLD}${RED}Format: $0 <compress 1|0> <filename> <optional output name>${NORMAL}\n"
+    exit 1
+fi
+
+compress="$1"
+
+filename=$(basename -- "$2")
+extension="${filename##*.}"
+filename="${filename%.*}"
+
+output="$3"
+if [[ $output == "" ]]; then
+    output="${filename}_CONVERTED"
+fi
+
+printf "\n${YELLOW}${BOLD}Encoding '$filename.$extension' | compress: $compress | output: $output.mp4${NORMAL}\n"
+
+if [[ $compress -eq 1 ]]; then
+    temp_output="temp_$output.mp4"
+else
+    temp_output="$output.mp4"
+fi
+
+# convert first.
+# we convert then compress instead of compressing on first pass because this results in a slightly higher bitrate.
+ffmpeg -y -stats -loglevel level+error -i "$filename.$extension" -vcodec copy -acodec copy "$temp_output"
+
+if [[ $compress -eq 1 ]]; then
+    compress-video 1 "$temp_output" "$output"
+    rm "$temp_output"
+else
+    printf "\n"
+fi
+
+printf "${GREEN}${BOLD}Done encoding '$filename.$extension' to '$output.mp4'${NORMAL}\n\n"