#!/bin/bash

DIR=/var/jenkins/workspace/dcpomatic2-long-test/test/dcpomatic-test/output

test=$1
frame=$2

if [ "$test" == "" -o "$frame" == "" ]; then
   echo "Syntax: $0 <test> <frame>"
   exit 1
fi

tmp=/tmp/$$.tmp
mkdir -p $tmp

a=`ls $DIR | head -n 1`
b=`ls $DIR | tail -n 1`

pushd ~/src/dcpomatic
if [ `git rev-list $a..HEAD | grep $b` != "" ]; then
   old=$a
   new=$b
else
   old=$b
   new=$a
fi
popd

echo "old is $old, new is $new"
echo "working in $tmp"

n=`printf "%06d" $frame`

pushd $tmp
cp $DIR/$old/$test.xml/video/* old.mxf
asdcp-unwrap old.mxf
j2k_to_image -i old_$n.j2c -o old.png
cp $DIR/$new/$test.xml/video/* new.mxf
asdcp-unwrap new.mxf
j2k_to_image -i new_$n.j2c -o new.png
popd

cp $tmp/old.png $tmp/new.png .