diff options
| -rwxr-xr-x | TOOLS/psnr-video.sh | 90 |
1 files changed, 59 insertions, 31 deletions
diff --git a/TOOLS/psnr-video.sh b/TOOLS/psnr-video.sh index 4e715d2b3b..95701d45cb 100755 --- a/TOOLS/psnr-video.sh +++ b/TOOLS/psnr-video.sh @@ -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 |