68 lines
1.7 KiB
Bash
68 lines
1.7 KiB
Bash
#!/usr/bin/env bash
|
|
|
|
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 [[ $1 == "" ]]; then
|
|
printf "\n${BOLD}Usage: $0 <filename> <optional crf value> <optional output name>\n - If you want to encode a range of CRF values then use -1 as the crf value.${NORMAL}\n"
|
|
exit 1
|
|
fi
|
|
|
|
filename=$(basename -- "$1")
|
|
extension="${filename##*.}"
|
|
filename="${filename%.*}"
|
|
|
|
use_crf=$2
|
|
default_crf=25 # Programming vids have pretty crisp text @ crf 25.
|
|
|
|
output_name="$3"
|
|
|
|
function encode() {
|
|
crf=$1
|
|
if [[ $output_name == "" ]]; then
|
|
output="${filename}_REDUCED_CRF-${crf}.$extension"
|
|
else
|
|
output="${output_name}.$extension"
|
|
fi
|
|
|
|
printf "\n${YELLOW}${BOLD}Encoding '$filename.$extension' with CRF $crf | output: $output${NORMAL}\n"
|
|
ffmpeg -i "$filename.$extension" -c:v libx264 -crf $crf -preset veryfast -profile:v baseline -level 3.0 -strict -2 "$output"
|
|
printf "\n${GREEN}${BOLD}Done encoding '$filename.$extension' with CRF $crf${NORMAL}\n\n"
|
|
}
|
|
|
|
if [[ $use_crf == "" ]]; then
|
|
use_crf=$default_crf
|
|
fi
|
|
|
|
if [[ $use_crf == -1 ]]; then
|
|
printf "\n${YELLOW}${BOLD}Encoding using a range of CRF values.${NORMAL}\n"
|
|
|
|
# Bigger crf values == bigger compression.
|
|
for crf in {25..28}
|
|
do
|
|
encode $crf
|
|
done
|
|
else
|
|
encode $use_crf
|
|
fi
|