Ended up with this, no longer uses parallel but still does background tasks
#!/bin/bash
# Video transcoder
# CPR : Jd Daniel :: Ehime-ken
# MOD : 2014-02-24 @ 16:34:29
# VER : Beta 3
inp="drop"
out="export"
clear # set -x
## test for reqs of exit
for requires in ffmpeg parallel; do
hash $requires 2>/dev/null || {
echo >&2 "I require $requires to run but it's not installed. Aborting."; exit 1;
}
done
## dectypes
declare -r fpath=$( cd "$(dirname "$0")" ; pwd -P )
declare -r types="asf\|asx\|avi\|flv\|m4v\|mkv\|mov\|mp4\|mpg\|ogg\|rm\|swf\|vob\|webm\|wmv"
declare -r allow=( mp4 ogg webm )
##
for dir in "$inp" "$out"; do
[ -d "$fpath/$dir" ] || { mkdir -p "$fpath/$dir"; } # create if not available
done
[ -z "$(ls $fpath/$inp)" ] && { "$fpath is empty, finished..."; exit 0; } # exit when empty
## start video conversion
cd $fpath ; while IFS= read -r video; do
skip=0 #reset skip flag
name="${video%.*}"
exts="${video##*.}"
# assign predetermined pos
for (( i = 0; i < ${#allow[@]}; i++ )); do
if [ "${allow[$i]}" = "${exts}" ]; then
skip=$(($i + 1));
fi
done
pids=() # pid track if we want to use it later for something
[[ $skip = 1 ]] || { ffmpeg -y -i "$inp/$video" -vb 1500k -vcodec libx264 -vpre slow -vpre baseline -g 30 "$out/${name}.mp4" 2> /dev/null & } # \n pid+="$! " # if we're going to do post proc kill work later
[[ $skip = 2 ]] || { ffmpeg -y -i "$inp/$video" -vb 1500k -vcodec libvpx -acodec libvorbis -ab 160000 -f webm -g 30 "$out/${name}.webm" 2> /dev/null & }
[[ $skip = 3 ]] || { ffmpeg -y -i "$inp/$video" -vb 1500k -vcodec libtheora -acodec libvorbis -ab 160000 -g 30 "$out/${name}.ogg" 2> /dev/null & }
# move out of path
for ext in "${allow[@]}"; do
[ -a "$inp/$name.$ext" ] && cp -f "$inp/$name.$ext" "$out/" &
done
for job in `jobs -p`; do
echo "Job: $job"
wait $job || let "FAIL+=1"
done
[ "0" == "$FAIL" ] && echo "YAY!" || echo "FAIL! ($FAIL)"
done <<< $(find "$fpath/$inp" -type f -iregex ".*\(${types}\)" -printf '%P\0 ')