#!/usr/bin/env bash
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# Copyright 2014 Vassil Panayotov
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# 2014 Johns Hopkins University (author: Daniel Povey)
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# Apache 2.0
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if [ "$#" -ne 2 ]; then
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echo "Usage: $0 <src-dir> <dst-dir>"
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echo "e.g.: $0 /export/a15/vpanayotov/data/LibriSpeech/dev-clean data/dev-clean"
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exit 1
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fi
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src=$1
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dst=$2
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# all utterances are FLAC compressed
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if ! which flac >&/dev/null; then
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echo "Please install 'flac' on ALL worker nodes!"
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exit 1
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fi
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spk_file=$src/../SPEAKERS.TXT
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mkdir -p $dst || exit 1
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[ ! -d $src ] && echo "$0: no such directory $src" && exit 1
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[ ! -f $spk_file ] && echo "$0: expected file $spk_file to exist" && exit 1
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wav_scp=$dst/wav.scp; [[ -f "$wav_scp" ]] && rm $wav_scp
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trans=$dst/text; [[ -f "$trans" ]] && rm $trans
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for reader_dir in $(find -L $src -mindepth 1 -maxdepth 1 -type d | sort); do
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reader=$(basename $reader_dir)
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if ! [ $reader -eq $reader ]; then # not integer.
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echo "$0: unexpected subdirectory name $reader"
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exit 1
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fi
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for chapter_dir in $(find -L $reader_dir/ -mindepth 1 -maxdepth 1 -type d | sort); do
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chapter=$(basename $chapter_dir)
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if ! [ "$chapter" -eq "$chapter" ]; then
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echo "$0: unexpected chapter-subdirectory name $chapter"
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exit 1
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fi
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find -L $chapter_dir/ -iname "*.flac" | sort | xargs -I% basename % .flac | \
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awk -v "dir=$chapter_dir" '{printf "%s %s/%s.flac \n", $0, dir, $0}' >>$wav_scp|| exit 1
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chapter_trans=$chapter_dir/${reader}-${chapter}.trans.txt
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[ ! -f $chapter_trans ] && echo "$0: expected file $chapter_trans to exist" && exit 1
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cat $chapter_trans >>$trans
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done
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done
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echo "$0: successfully prepared data in $dst"
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exit 0
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