#!/bin/bash
  
  # Copyright Johns Hopkins University (Author: Daniel Povey)  2012
  # Apache 2.0.
  
  # Begin configuration section.
  silence_label=0
  cmd=run.pl
  # End configuration section.
  
  echo "$0 $@"  # Print the command line for logging
  
  for x in `seq 2`; do
    [ "$1" == "--silence-label" ] && silence_label=$2 && shift 2;
    [ "$1" == "--cmd" ] && cmd="$2" && shift 2;
  done
  
  if [ $# != 3 ]; then
     echo "Word-align lattices (make the arcs sync up with words)"
     echo ""
     echo "Usage: scripts/walign_lats.sh [options] <lang-dir> <decode-dir-in> <decode-dir-out>"
     echo "options: [--cmd (run.pl|queue.pl [queue opts])] [--silence-label <integer-id-of-silence-word>]"
     exit 1;
  fi
  
  . ./path.sh || exit 1;
  
  lang=$1
  indir=$2
  outdir=$3
  
  mdl=`dirname $indir`/final.mdl
  wbfile=$lang/phones/word_boundary.int
  
  for f in $mdl $wbfile $indir/num_jobs; do
    [ ! -f $f ] && echo "word_align_lattices.sh: no such file $f" && exit 1;
  done
  
  mkdir -p $outdir/log
  
  
  cp $indir/num_jobs $outdir;
  nj=`cat $indir/num_jobs`
  
  $cmd JOB=1:$nj $outdir/log/align.JOB.log \
    lattice-align-words --silence-label=$silence_label --test=true \
     $wbfile $mdl "ark:gunzip -c $indir/lat.JOB.gz|" "ark,t:|gzip -c >$outdir/lat.JOB.gz" || exit 1;