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mirror of https://github.com/mpv-player/mpv synced 2024-12-25 08:12:17 +00:00

Nits suggested by Ivo and Diego. Patch by Matthias Wieser < mwieser AH gmx POIS de >

Original thread:
Date: Oct 2, 2005 7:12 PM
Subject: Re: Fwd: [MPlayer-cvslog] CVS: main/TOOLS psnr-video.sh, NONE, 1.1 README, 1.9, 1.10


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@16637 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
gpoirier 2005-10-02 18:03:08 +00:00
parent c82d1bfbd0
commit a00cc0b9ed

View File

@ -1,11 +1,39 @@
#!/bin/sh
# Helper script to ease comparing the PSNR between two video files
# Copyleft 2005 by Matthias Wieser
# Copyleft 2005 by Ivo
# This file comes under GPL, see http://www.gnu.org/copyleft/gpl.html for more
# information on its licensing.
warning_frame_number () {
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."
}
TEMPDIR="/tmp/psnr_video"
WORKDIR=`pwd`/
WORKDIR=`pwd`
exit=0
if [[ `which pnmpsnr 2> /dev/null` = "" ]]
then
echo
echo "To use this script you have to install the program \"pnmpsnr\" which is"
echo " included in the netpbm package."
echo
exit=1
fi
if [[ `which bc 2> /dev/null` = "" ]]
then
echo
echo "To use this script you have to install the GNU command line calculator \"bc\"."
echo
exit=1
fi
if [ $# -le 1 ]; then
echo
echo "Usage: `basename $0` <file1> <file2> [<frames>] [<options1>] [<options2>]"
@ -21,7 +49,11 @@ if [ $# -le 1 ]; then
echo " ./`basename $0` ./orig.avi ./test.avi 250 \"\" \"-vf pp=ac\""
echo
exit 1
exit=1
fi
if [ "$exit" -eq 1 ]; then
exit 1
fi
FILE1=$1
@ -44,6 +76,7 @@ if [ $# -ge 5 ]; then
echo "Mplayer options for ${FILE2}: $FILE2_Options"
fi
mkdir -p ${TEMPDIR}/FILE1
mkdir -p ${TEMPDIR}/FILE2
@ -57,12 +90,12 @@ rm -f *ppm
rm -f *del
if [ $LastFrame -ge 0 ]; then
mplayer $FILE1_Options -frames $LastFrame -nosound -vo pnm ${WORKDIR}$FILE1 >/dev/null
mplayer $FILE1_Options -frames $LastFrame -nosound -vo pnm ${WORKDIR}/$FILE1 >/dev/null
else
mplayer $FILE1_Options -nosound -vo pnm ${WORKDIR}$FILE1 > /dev/null
mplayer $FILE1_Options -nosound -vo pnm ${WORKDIR}/$FILE1 > /dev/null
fi
### File 2
### File 2
echo
echo "############## $FILE2 #################"
@ -71,9 +104,9 @@ cd ${TEMPDIR}/FILE2
rm *ppm 2> /dev/null
if [ $LastFrame -ge 0 ]; then
mplayer $FILE2_Options -frames $LastFrame -nosound -vo pnm ${WORKDIR}$FILE2 >/dev/null
mplayer $FILE2_Options -frames $LastFrame -nosound -vo pnm ${WORKDIR}/$FILE2 >/dev/null
else
mplayer $FILE2_Options -nosound -vo pnm ${WORKDIR}$FILE2 >/dev/null
mplayer $FILE2_Options -nosound -vo pnm ${WORKDIR}/$FILE2 >/dev/null
fi
@ -86,10 +119,7 @@ if [[ `ls -1 ${TEMPDIR}/FILE1/*ppm | wc -l` = `ls -1 ${TEMPDIR}/FILE2/*ppm | wc
then
echo
else
echo "Files have differing numbers of frames!"
echo "$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."
warning_frame_number
echo
fi
@ -104,47 +134,45 @@ for FILE in `ls -1 *.ppm`
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
YCBCR=`pnmpsnr ../FILE1/$FILE $FILE 2>&1 | tail -n 3 | cut -f 3 -d ':' | \
( read Y X; read CB X; read CR X; echo "$Y;$CB;$CR;")`
Y=`echo $YCBCR | cut -f 1 -d ';'`
CB=`echo $YCBCR | cut -f 2 -d ';'`
CR=`echo $YCBCR | cut -f 3 -d ';'`
echo $YCBCR >>../psnr.dat
ALL=`echo "(-10)*l((e(-$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))
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}
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."
warning_frame_number
echo
fi
cd ..
rm -r ${TEMPDIR}
echo "Created ${WORKDIR}psnr.dat"
echo "Created ${WORKDIR}/psnr.dat"
echo