spectrograph-file

#!/bin/bash
# Spectrograph  Copyright (C) 2015  Lukáš Ondráček <ondracek.lukas@gmail.com>, see README file

path=$(dirname "`readlink -f "$0"`")

if [[ "$*" = "-?" ]]; then
	echo "spectrograph-file-specific command line args:"
	echo
	echo "  -?"
	echo
	echo "  --file <input-file-name>"
	echo "       required"
	echo
	echo "  --rate <sample_rate>"
	echo "       rate to be used for encoding"
	echo "       default: file sampling rate"
	echo
	echo "The other command line args:"

	$path/spectrograph -? | tail -n +2
	exit 0
fi


exit_on_unknown_param=false
exit_on_missing_param=true
remove_wanted_param=true
wanted_param=--file
. $path/utils/catch-arg.sh
file=$value

exit_on_missing_param=false
remove_wanted_param=false
wanted_param=--rate
. $path/utils/catch-arg.sh
rate=$value

if [[ ! -e $file ]]; then
	echo "File not found"
	exit 1
fi

if [[ -z $rate ]]; then
	rate=`avconv -i "$file" 2>&1 | sed -nr 's/^.*Audio:.*\s+([0-9]+)\s*Hz.*$/\1/p'`
	if [[ -z $rate ]]; then
		echo "Rate cannot be determined, using default."
		rate=44100
	fi
fi

$path/utils/file2raw --file "$file" --rate "$rate" 2>/dev/null |
$path/utils/play-forward-raw --rate "$rate" |
$path/spectrograph --rate "$rate" "$@"