#! /bin/csh -f

#
# getnframes
#
# Original Author: Doug Greve
# CVS Revision Info:
#    $Author: greve $
#    $Date: 2009/10/06 16:53:10 $
#    $Revision: 1.5 $
#
# Copyright (C) 2002-2007,
# The General Hospital Corporation (Boston, MA). 
# All rights reserved.
#
# Distribution, usage and copying of this software is covered under the
# terms found in the License Agreement file named 'COPYING' found in the
# FreeSurfer source code root directory, and duplicated here:
# https://surfer.nmr.mgh.harvard.edu/fswiki/FreeSurferOpenSourceLicense
#
# General inquiries: freesurfer@nmr.mgh.harvard.edu
# Bug reports: analysis-bugs@nmr.mgh.harvard.edu
#


if($#argv != 1) then
  echo "USAGE: getnframes stem|fname "
  echo '$Id: getnframes,v 1.5 2009/10/06 16:53:10 greve Exp $'
  exit 1;
endif

set stem = $argv[1];

# First, check for bshort/bfloat without bhdr
set f0 = $stem"_000.hdr";
if(-e $f0) then
  if(! -e $stem.bhdr) then
    set nframes = `cat $f0 | awk '{print $3}'`;
    echo $nframes
    exit 0
  endif
endif

# If it gets here, then bhdr exists or is not bshort/bfloat
if(-e $stem) then
  set fname = $stem;
else
  set fname = `stem2fname $stem`;
  if($status) then
    echo "$fname"
    exit 1;
  endif
endif

set cmd = (mri_info --o /tmp/$$.tmp --nframes $fname);
$cmd >& /dev/null
if($status) then
  echo "ERROR: with $cmd"
  exit 1;
endif

set nframes = `cat /tmp/$$.tmp`
echo $nframes

rm /tmp/$$.tmp

exit 0;
#-----------------------------------------------------

set firstslice = `getfirstsliceno $stem`
set st = $status;
if($st) then
  echo "ERROR: cannot find any files with $stem";
  exit 1;
endif

set hdr = `printf "%s_%03d.hdr" $stem $firstslice`
if(! -e $hdr) then
  echo "ERROR: cannot find $hdr"
  exit 1;
endif

set tmp = `cat $hdr`;
set nframes = $tmp[3];

echo $nframes;

exit 0;
##########################################