blob: 1fdc8c106e35164a962800390c0015b5b31bf3e7 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
#!/bin/sh
# Helper script to ease comparing two video files
# Copyleft 2001 by Matthias Wieser
# This file comes under GPL, see http://www.gnu.org/copyleft/gpl.html for more
# information on it's licensing.
TEMPDIR="/tmp/psnr_video"
WORKDIR=`pwd`/
if [ $# -le 1 ]; then
echo
echo "Usage: `basename $0` <file1> <file2> [<frames>] [<options1>] [<options2>]"
echo
echo " <file1> and <file2> are the video files for which the PSNR should be calculated."
echo " [<frames>] is the number of frames to process, starting from frame 1."
echo " [<options1>] are additional MPlayer options for <file1>"
echo " [<options2>] are additional MPlayer options for <file2>"
echo
echo " Be aware that `basename $0` needs a lot of temporal space inside /temp/."
echo
echo "Example:"
echo " ./`basename $0` ./orig.avi ./test.avi 250 \"\" \"-vf pp=ac\""
echo
exit 1
fi
FILE1=$1
FILE2=$2
LastFrame=-1
if [ $# -ge 3 ]; then
LastFrame=$3
echo
echo "Will process $LastFrame frames"
fi
if [ $# -ge 4 ]; then
FILE1Opts=$4
echo "Mplayer options for ${FILE1}: $FILE1Opts"
fi
if [ $# -ge 5 ]; then
FILE2Opts=$5
echo "Mplayer options for ${FILE2}: $FILE2Opts"
fi
mkdir -p ${TEMPDIR}/FILE1
mkdir -p ${TEMPDIR}/FILE2
### File 1
echo
echo "############## $FILE1 #################"
cd ${TEMPDIR}/FILE1
rm *ppm 2> /dev/null
rm *del 2> /dev/null
if [ $LastFrame -ge 0 ]; then
mplayer $FILE1Opts -frames $LastFrame -nosound -vo pnm ${WORKDIR}$FILE1 >/dev/null
else
mplayer $FILE1Opts -nosound -vo pnm ${WORKDIR}$FILE1 >/dev/null
fi
### File 2
echo
echo "############## $FILE2 #################"
cd ${TEMPDIR}/FILE2
rm *ppm 2> /dev/null
if [ $LastFrame -ge 0 ]; then
mplayer $FILE2Opts -frames $LastFrame -nosound -vo pnm ${WORKDIR}$FILE2 >/dev/null
else
mplayer $FILE2Opts -nosound -vo pnm ${WORKDIR}$FILE2 >/dev/null
fi
### PSNR
echo
echo "############## Calculation PSNR #################"
if [[ `ls -1 ${TEMPDIR}/FILE1/*ppm|wc -l` = `ls -1 ${TEMPDIR}/FILE2/*ppm|wc -l` ]]
then
echo
else
echo "Files have differing numbers of frames!"
echo "$FILE1 has `ls -1 ${TEMPDIR}/FILE1/*ppm|wc -l` frames,"
echo "$FILE2 has `ls -1 ${TEMPDIR}/FILE2/*ppm|wc -l` frames."
echo "Processing the first `ls -1 ${TEMPDIR}/FILE2/*ppm|wc -l` frames."
echo
fi
cd ${TEMPDIR}/FILE2
#rm ../psnr.dat
echo "File;Y;Cb;Cr" >../psnr.dat
echo "0" > errorsum.del
i=0
for FILE in `ls -1 *.ppm`
do
echo $FILE
echo -n "$FILE">>../psnr.dat
echo -n ";">>../psnr.dat
pnmpsnr ../FILE1/$FILE $FILE 2> del.del
grep "Y" del.del | dd bs=1c count=5 skip=29 of=del2.del 2>/dev/null
Y=`cat del2.del`
echo -n "$Y;">>../psnr.dat
grep "Cb" del.del | dd bs=1c count=5 skip=29 of=del2.del 2>/dev/null
CB=`cat del2.del`
echo -n "$CB;">>../psnr.dat
grep "Cr" del.del | dd bs=1c count=5 skip=29 of=del2.del 2>/dev/null
CR=`cat del2.del`
echo -n "$CR;">>../psnr.dat
ALL=`echo "(-10)*l((e(-$Y/10*l(10))+e(-$CB/10*l(10))/4+e(-$CR/10*l(10))/4)/1.5)/l(10)"|bc -l`
echo "$ALL">>../psnr.dat
ERROR=`echo "scale=30; (e(-1*$Y/10*l(10))+e(-1*$CB/10*l(10))/4+e(-1*$CR/10*l(10))/4)/1.5"|bc -l`
ERRORSUM=`cat errorsum.del`
echo `echo "scale=30; $ERROR + $ERRORSUM"|bc -l` > errorsum.del
i=$(($i+1))
if [[ $i = $LastFrame ]]
then
break
fi
done
ERRORSUM=`cat errorsum.del`
PSNR=`echo "-10*l($ERRORSUM/$i)/l(10)"|bc -l`
echo "PSNR:;$PSNR">>../psnr.dat
cd ..
mv psnr.dat ${WORKDIR}
if [[ `ls -1 ${TEMPDIR}/FILE1/*ppm|wc -l` = `ls -1 ${TEMPDIR}/FILE2/*ppm|wc -l` ]]
then
echo
else
echo "Files have differing numbers of frames!"
echo "$FILE1 has `ls -1 ${TEMPDIR}/FILE1/*ppm|wc -l` frames,"
echo "$FILE2 has `ls -1 ${TEMPDIR}/FILE2/*ppm|wc -l` frames."
echo "Processed the first `ls -1 ${TEMPDIR}/FILE2/*ppm|wc -l` frames."
echo
fi
cd ..
rm -r ${TEMPDIR}
echo "Created ${WORKDIR}psnr.dat"
echo
|