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egs/wsj/s5/utils/convert_slf_parallel.sh
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#!/bin/bash
# Copyright Brno University of Technology (Author: Karel Vesely) 2014. Apache 2.0.
# This script converts lattices to HTK format compatible with other toolkits.
# We can choose to put words to nodes or arcs, as both is valid in the SLF format.
# begin configuration section.
cmd=run.pl
dirname=lats-in-htk-slf
parallel_opts="--max-jobs-run 50" # We should limit disk stress
word_to_node=false # Words in arcs or nodes? [default:arcs]
#end configuration section.
echo "$0 $@"
[ -f ./path.sh ] && . ./path.sh
. parse_options.sh || exit 1;
if [ $# -ne 3 ]; then
echo "Usage: $0 [options] <data-dir> <lang-dir|graph-dir> <decode-dir>"
echo " Options:"
echo " --cmd (run.pl|queue.pl...) # specify how to run the sub-processes."
echo " --word-to-link (true|false) # put word symbols on links or nodes."
echo " --parallel-opts STR # parallelization options (def.: '--max-jobs-run 50')."
echo "e.g.:"
echo "$0 data/dev data/lang exp/tri4a/decode_dev"
exit 1;
fi
data=$1
lang=$2 # Note: may be graph directory not lang directory, but has the necessary stuff copied.
dir=$3
model=$(dirname $dir)/final.mdl # assume model one level up from decoding dir.
for f in $lang/words.txt $lang/phones/align_lexicon.int $model $dir/lat.1.gz; do
[ ! -f $f ] && echo "$0: expecting file $f to exist" && exit 1;
done
[ ! -d $dir/$dirname/log ] && mkdir -p $dir/$dirname
echo "$0: Converting lattices into '$dir/$dirname'"
# Words in arcs or nodes? [default:nodes]
word_to_link_arg=
$word_to_node && word_to_node_arg="--word-to-node"
nj=$(cat $dir/num_jobs)
# convert the lattices (individually, gzipped)
$cmd $parallel_opts JOB=1:$nj $dir/$dirname/log/lat_convert.JOB.log \
mkdir -p $dir/$dirname/JOB/ '&&' \
lattice-align-words-lexicon --output-error-lats=true --output-if-empty=true \
$lang/phones/align_lexicon.int $model "ark:gunzip -c $dir/lat.JOB.gz |" ark,t:- \| \
utils/int2sym.pl -f 3 $lang/words.txt \| \
utils/convert_slf.pl $word_to_node_arg - $dir/$dirname/JOB/ || exit 1
# make list of lattices
find -L $PWD/$dir/$dirname -name *.lat.gz > $dir/$dirname/lat_htk.scp || exit 1
# check number of lattices:
nseg=$(cat $data/segments | wc -l)
nlat_out=$(cat $dir/$dirname/lat_htk.scp | wc -l)
echo "segments $nseg, saved-lattices $nlat_out"
#
[ $nseg -ne $nlat_out ] && echo "WARNING: missing $((nseg-nlat_out)) lattices for some segments!" \
&& exit 1
echo "success, converted lats to HTK : $PWD/$dir/$dirname/lat_htk.scp"
exit 0
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