forked from HPR/hpr-tools
269 lines
9.1 KiB
Bash
Executable File
269 lines
9.1 KiB
Bash
Executable File
#!/bin/bash
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# hprid
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################################################################################
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#
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# script to prepare audio files for HPR shows
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#
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# input: mp3 or ogg file
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# result: mp3, ogg in 44100 Hz, spx files 16000Hz with intro and outro
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# provides 3 interactive checks for audio quality, intro and outro
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#
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################################################################################
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# This file is part of the HPR Tool set
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#
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# HPR Tool set is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# HPR Tool set is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with HPR Tool set. If not, see <http://www.gnu.org/licenses/>.
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# http://www.gnu.org/licenses/agpl-3.0.html
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# #########################################################################
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################################################################################
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#
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# PREREQUISITS
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# - current folder has to be writable
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# - there should NOT be a temp.ogg or temp.mp3 file
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# - intro.mp3 and outro.mp3 have to be present
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# - IMPORTANT: sox compiled with mp3 support
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# see http://a0u.xanga.com/700438974/howto-soc-installation
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#
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#
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# IMPORTANT
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# Backup the files before feeding them to this script, no guarantees here
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# Handling of .wav not yet tested, but it should work
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#
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# code.cruncher, May 2011
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#
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################################################################################
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################################################################################
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#
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# TODO
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#
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# test handling of wav files
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# add play final files or open them in specific player(s)
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# add handling of ID3 tags
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# create html interface for standardized info gathering
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#
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################################################################################
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#============================================================
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# Check input
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usage="usage: $(basename $0 ) [ -i ] [ -o ] <fname>, -i to add intro and -o outro, fname is a file with audio for HPR"
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CHANNELS="1"
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ADDINTRO="n"
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ADDOUTRO="n"
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while getopts "io" opt; do
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case $opt in
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i )
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ADDINTRO="y"
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;;
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o )
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ADDOUTRO="y"
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;;
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esac
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done
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shift $(($OPTIND - 1))
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# if not ${mediafile} return usage
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if [ $# -lt 1 ]; then
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echo $usage
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exit 1
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fi
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mediafile=${1}
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# test if file exists
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if [ ! -f "intro.flac" ]; then
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echo "sorry, file \"intro.flac\" does not exist"
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echo "To download it run the command:"
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echo " wget http://hackerpublicradio.org/media/theme-music/intro.flac"
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exit 1
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fi
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if [ ! -f "outro.flac" ]; then
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echo "sorry, file \"outro.flac\" does not exist"
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echo "To download it run the command:"
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echo " wget http://hackerpublicradio.org/media/theme-music/outro.flac"
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exit 1
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fi
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for mediafile in "$@"
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do
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echo $var
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if [ ! -f "${mediafile}" ]; then
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echo "sorry, file \"${mediafile}\" does not exist"
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continue
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fi
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# test if file exists
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if [ ! -r "${mediafile}" ]; then
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echo "sorry, file \"${mediafile}\" is not readable"
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continue
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fi
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if [ $(ffprobe "${mediafile}" 2>&1 | grep "Audio:" | wc -l ) -eq 0 ]; then
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echo "sorry, file \"${mediafile}\" has no audio track"
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continue
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fi
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# extract file name and extension
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fname=${mediafile%.*}
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ext=${mediafile/*./}
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#Make a backup
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# mediafilebackup=${mediafile}_$(md5sum ${mediafile} | cut -c -32 )_orig.${ext}
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# cp -v ${mediafile} ${mediafilebackup}
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#
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# if [[ ! -e ${mediafilebackup} ]]; then
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# echo "Backup not made: ${mediafilebackup}"
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# exit
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# fi
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# check audio quality
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dur=7 # playtime of sample in seconds
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go=1 # variable to repeat playing of sample
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from=180 # start sample at 3 minutes in
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#============================================================
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# Question Time
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# # # while [ $go -ne 0 ]
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# # # do
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# # # echo
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# # # echo "--------------------------------------------------------------------------------"
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# # # echo "1/4 AUDIO TEST: check audio quality: ... playing $dur seconds ..."
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# # # play "${mediafile}" trim $from $dur
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# # # ((from+=180)) # next sample will be 3 minutes later
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# # # read -s -n1 -p "sound quality ok?[y,n] ... or play another sample[a] ... [y,n,a]"
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# # # echo
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# # # case "$REPLY" in
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# # # n) echo "aborting ... get better quality sound file ... good bye!"; exit 0;;
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# # # y) go=0;;
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# # # esac
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# # # done
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# # #
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# # # # Check for intro
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# # # echo
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# # # echo "--------------------------------------------------------------------------------"
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# # # echo "2/4 ADDINTRO TEST: Is the intro playing? "
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# # # play "${mediafile}" trim 1 5 # play 5 seconds at beginning of file
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# # # read -s -n1 -p "Is there a intro? [y, n]" -i "n"; echo
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# # # if [ "$REPLY" = 'y' ]; then
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# # # echo "Will add the intro"
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# # # ADDINTRO="y"
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# # # fi
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# # #
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# # # # Check for outro
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# # # echo
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# # # echo "--------------------------------------------------------------------------------"
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# # # echo "3/4 ADDOUTRO TEST: Is the outro playing? "
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# # # len=$(eval "soxi -D \"${mediafile}\"")
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# # # len=$(echo "scale=0; $len - 50" | bc)
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# # # play "${mediafile}" trim $len 5
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# # # read -s -n1 -p "Is there a outro ? [y, n]" -i "n"; echo
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# # # if [ "$REPLY" = 'y' ]; then
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# # # echo "Will add the outro"
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# # # ADDOUTRO="y"
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# # # fi
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# # #
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# # #
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# # # echo
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# # # echo "--------------------------------------------------------------------------------"
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# # # echo "4/4 STEREO TEST: Should this be mono or stereo [m,s] ? "
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# # # CHANNELS="1"
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# # # read -s -n1 -p "intro ok? [m, s]" -i "m" ; echo
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# # # if [ "$REPLY" = 's' ]; then
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# # # echo "Will convert to stereo"
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# # # CHANNELS="2"
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# # # fi
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#============================================================
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# Preprocess the source file
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echo "Convert from ${mediafile} to known wav format ${fname}_tmp.wav"
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ffmpeg -i ${mediafile} -ar 44100 -ac $CHANNELS ${fname}_tmp.wav > ${fname}_tmp.log 2>&1
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# echo "Normalising the audio"
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# normalize -a 0.5 ${fname}_tmp.wav >> ${fname}_tmp.log 2>&1
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# TODO Compressor !
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# TODO add a little speed up
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# TODO little overlap in fade in of intro
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# echo "Truncating the silence"
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# sox ${fname}_tmp.wav ${fname}_sox.wav silence -l 1 0.1 1.6% -1 0.6 1.6% >> ${fname}_tmp.log 2>&1
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cp -v ${fname}_tmp.wav ${fname}_sox.wav
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echo "Add the intro if it is missing and add it to the temp pcm file"
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if [ "$ADDINTRO" = 'y' ]; then
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ffmpeg -i intro.flac -ar 44100 -ac $CHANNELS -acodec pcm_s16le -f s16le - > ${fname}_tmp.pcm 2>> ${fname}_tmp.log
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fi
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echo "convert the uploaded episode and add it to the temp pcm file"
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ffmpeg -i ${fname}_sox.wav -ar 44100 -ac $CHANNELS -acodec pcm_s16le -f s16le - >> ${fname}_tmp.pcm 2>> ${fname}_tmp.log
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echo "Add the outro if it is missing and add it to the temp pcm file"
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if [ "$ADDOUTRO" = 'y' ]; then
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ffmpeg -i outro.flac -ar 44100 -ac $CHANNELS -acodec pcm_s16le -f s16le - >> ${fname}_tmp.pcm 2>> ${fname}_tmp.log
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fi
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echo "Convert the pcm file to a know wav format"
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ffmpeg -f s16le -ar 44100 -ac 1 -acodec pcm_s16le -i ${fname}_tmp.pcm ${fname}_mez.wav 2>> ${fname}_tmp.log
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# echo "Get an image of the converted audio"
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# sox ${fname}_mez.wav -n spectrogram -x 800 -y 100 -o ${fname}_mez.png
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echo "--------------------------------------------------------------------------------"
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echo "File information"
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ffprobe ${fname}_mez.wav 2>&1 | grep Audio:
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mediainfo ${fname}_mez.wav
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echo "--------------------------------------------------------------------------------"
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# display ${fname}_mez.png &
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# read -s -n1 -p "Spectrogram check: Everything look ok [y,n] ? " -i "y" ; echo
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# if [ "$REPLY" = 'n' ]; then
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# echo "Something went w rong. Aborting."
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# exit
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# fi
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# echo "--------------------------------------------------------------------------------"
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# vlc ${fname}_mez.wav >> ${fname}_tmp.log 2>&1 &
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# read -s -n1 -p "VLC check: Everything look ok [y,n] ? " -i "y" ; echo
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# if [ "$REPLY" = 'n' ]; then
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# echo "Something went wrong. Aborting."
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# exit
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# fi
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echo "Remove temp files"
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rm -v ${fname}_tmp.wav ${fname}_sox.wav ${fname}_tmp.pcm ${fname}_tmp.log
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echo "Convert to mp3" # TODO and add tags"
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sox -S ${fname}_mez.wav ${fname}_mez.mp3
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echo "Convert to ogg" # TODO and add tags"
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sox -S ${fname}_mez.wav ${fname}_mez.ogg
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echo "Convert to spx" # TODO and add tags"
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sox -S ${fname}_mez.wav -c 1 -r 16000 -t wav - | speexenc - ${fname}_mez.spx
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echo "Changing the file dates to the time of upload"
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touch -r ${mediafile} ${fname}*
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done
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