fframes - frame counter which uses ffmpeg as parser

#!/bin/sh

. ffprogress.sh

FF_ARGS="-an -f null -y"
FF_INPUT=$1

echo
if ! FF_PROGRESS; then
    printf "\n\033[0;31mError - $FF_ERROR\033[0;32m\n\n"
    exit 1
fi
printf "\r\033[1B\033[1C\033[7m"
grep -Eo 'frame= *[0-9]+ *' $FF_LOG | tail -n1
printf "\033[0m\n\n"
rm -f $FF_LOG


# Original simplified ffmpeg command line:
# ffmpeg -i $1 -an -f null -y /dev/null 2>&1 | grep -Eo 'frame= *[0-9]+ *' | grep -Eo '[0-9]+' | tail -1 -