FFMPEG enhancement suite 2023-11-18

# ffmpeg concat 20230804013241 # 20231118122511: added: -metadata:s:v rotate="" # 20231128170123: $3 for additional parameters such as -an.
ffco() { ffmpeg -f concat -safe 0 $3 -i "$1" -metadata:s:v rotate="" -c copy "$2"; }
# ffco-instant from last ffmpeg file 20230914000245 # 20231118122459: added: -metadata:s:v rotate=""
ffco-instant() { ffmpeg -f concat -safe 0 $2 -i $(ls -t -1 ~/Documents/massdmp/ffmpeg* |head -n 1) -metadata:s:v rotate="" -c copy "$1"; }
# ffmute - mute audio 20231123001501
ffmute() { ffmpeg -i "$1" -c:v copy -an "$2"; }
# fferror - verify integrity 20231123021438
fferror() { ffmpeg -v error -i "$1" -f null  - ;}
# ffmpeg filelist generator 20231020044358
fflist() {
    if [ "$1" == "" ]; then sed -i -r "s/(.*)/file '\\1'/g" $(ls -t -1 ~/Documents/massdmp/ffmpeg* |head -n 1);
    else sed -i -r "s/(.*)/file '\1'/g" "$1";
    fi
}