56 lines
1.5 KiB
Bash
56 lines
1.5 KiB
Bash
#!/usr/bin/env bash
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if which tput >/dev/null 2>&1; then
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ncolors=$(tput colors)
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fi
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if [ -t 1 ] && [ -n "$ncolors" ] && [ "$ncolors" -ge 8 ]; then
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RED="$(tput setaf 1)"
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GREEN="$(tput setaf 2)"
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YELLOW="$(tput setaf 3)"
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BLUE="$(tput setaf 4)"
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MAGENTA="$(tput setaf 5)"
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CYAN="$(tput setaf 6)"
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BOLD="$(tput bold)"
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NORMAL="$(tput sgr0)"
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else
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RED=""
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GREEN=""
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YELLOW=""
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BLUE=""
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MAGENTA=""
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CYAN=""
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BOLD=""
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NORMAL=""
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fi
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transcode="$1"
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filename=$(basename -- "$2")
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format="$3"
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bitrate="$4"
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if [[ $1 == "" || $2 == "" || $3 == "" ]]; then
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printf "${BOLD}${RED}Usage: $0 <transcode? 0|1 (needed when container doesn't contain format)> <filename> <format (mp3, m4a, aac, etc)> <optional: bitrate. Uses 64k when not specified, 0 = variable (e.g. 0, 64, 128, etc)>${NORMAL}\n"
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exit 1
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fi
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extension="${filename##*.}"
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filename="${filename%.*}"
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output_name="$filename.$format"
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if [[ $bitrate == "" ]]; then
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bitrate="64"
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fi
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printf "\n${YELLOW}${BOLD}Extracting audio from $filename.$extension | bitrate: ${bitrate}k | output: $output_name${NORMAL}\n"
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if [[ $transcode == "1" ]]; then
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# Transcode audio
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ffmpeg -i "$filename.$extension" -b:a ${bitrate}k -ac 2 -ar 44100 -map a "$output_name"
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else
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# Grab the audio stream from the video.
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ffmpeg -i "$filename.$extension" -vn -acodec copy "$output_name"
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fi
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printf "\n${GREEN}${BOLD}Done extracting audio from $filename.$extension | output name '$output_name'${NORMAL}\n\n"
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