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|
#!/usr/bin/perl
#
# Licence: GPL
#
# 2003/02/09 Jonas Jermann <jjermann@gmx.net>
#
# Script: Draw PSNR log graphs using gnuplot
#
# requires: gnuplot
use Getopt::Long;
# MAIN
my %options;
my $dem_file="psnr.dem";
commandline();
demo_file();
system ("gnuplot $dem_file");
system("rm $dem_file $options{file}.[IPB] $options{file}.diff* 2>/dev/null");
exit 0;
# DEMO FILE
sub demo_file {
if ($options{file2}) {
my @file1_cont = ();
my @file2_cont = ();
my $NewRow,$i,$j;
open(LIST_IN, "$options{file}"); while( <LIST_IN> ) {
$NewRow=[];
@$NewRow = split(/[ ,]+/, $_);
push( @file1_cont, $NewRow );
}
close(LIST_IN);
open(LIST_IN2, "$options{file2}"); while( <LIST_IN2> ) {
$NewRow=[];
@$NewRow = split(/[ ,]+/, $_);
push( @file2_cont, $NewRow );
}
close(LIST_IN2);
open(LIST_OUT, ">$options{file}.diff");
for($i=0; $i<=$#file2_cont; $i++) {
print LIST_OUT " $file2_cont[$i]->[1],\ ";
for($j=2; $j<=7; $j++) {
$file2_cont[$i]->[$j] -= $file1_cont[$i]->[$j];
print LIST_OUT " $file2_cont[$i]->[$j],\ ";
}
print LIST_OUT " $file2_cont[$i]->[8]\n";
}
close(LIST_OUT);
$options{file}="$options{file}.diff";
}
if ($options{iframes}) { system("cat $options{file} | grep I > $options{file}.I"); }
if ($options{pframes}) { system("cat $options{file} | grep P > $options{file}.P"); }
if ($options{bframes}) { system("cat $options{file} | grep B > $options{file}.B"); }
open(DEM_FILE,">$dem_file");
print DEM_FILE "#PSNR Statistics
#---------------
set title \"PSNR Statistics\"
set data style fsteps
set xlabel \"Frames\"
set grid
";
if ($options{quant}) {
print DEM_FILE "# Quantizers
plot [] [0:] \\";
if ($options{pframes}) {
print DEM_FILE "
\"$options{file}.P\" using 1:2 t \"Quantizer: P frames\" w $options{qs}";
if ($options{bframes} || $options{iframes}) { print DEM_FILE ",\\"; }
}
if ($options{bframes}) {
print DEM_FILE "
\"$options{file}.B\" using 1:2 t \"Quantizer: B frames\" w $options{qs}";
if ($options{iframes}) { print DEM_FILE ",\\"; }
}
if ($options{iframes}) {
print DEM_FILE "
\"$options{file}.I\" using 1:2 t \"Quantizer: I frames\" w $options{qs}";
}
if (!($options{pframes} || $options{bframes} || $options{iframes})) {
print DEM_FILE "
\"$options{file}\" using 1:2 t \"Quantizer\" w $options{qs}";
}
print DEM_FILE "
pause -1
";
}
if ($options{size}) {
print DEM_FILE "# Frame size
plot \\";
if ($options{pframes}) {
print DEM_FILE "
\"$options{file}.P\" using 1:3 t \"Size: P frames\" w $options{ss}";
if ($options{bframes}||$options{iframes}) { print DEM_FILE ",\\"; }
}
if ($options{bframes}) {
print DEM_FILE "
\"$options{file}.B\" using 1:3 t \"Size: B frames\" w $options{ss}";
if ($options{iframes}) { print DEM_FILE ",\\"; }
}
if ($options{iframes}) {
print DEM_FILE "
\"$options{file}.I\" using 1:3 t \"Size: I frames\" w $options{ss}";
}
if (!($options{pframes}||$options{bframes}||$options{iframes})) {
print DEM_FILE "
\"$options{file}\" using 1:3 t \"Size\" w $options{ss}";
}
print DEM_FILE "
pause -1
";
}
if ($options{psnr}) {
print DEM_FILE "# PSNR
plot \\";
if ($options{pframes}) {
print DEM_FILE "
\"$options{file}.P\" using (\$1):(\$7) t \"PSNR (All): P frames\" w $options{ps}";
if ($options{bframes}||$options{iframes}) { print DEM_FILE ",\\"; }
}
if ($options{bframes}) {
print DEM_FILE "
\"$options{file}.B\" using (\$1):(\$7) t \"PSNR (All): B frames\" w $options{ps}";
if ($options{iframes}) { print DEM_FILE ",\\"; }
}
if ($options{iframes}) {
print DEM_FILE "
\"$options{file}.I\" using (\$1):(\$7) t \"PSNR (All): I frames\" w $options{ps}";
}
if (!($options{pframes}||$options{bframes}||$options{iframes})) {
print DEM_FILE "
\"$options{file}\" using (\$1):(\$7) t \"PSNR (All)\" w $options{ps}";
}
print DEM_FILE "
#\"$options{file}\" using (\$1):(\$4) t \"PSNR (Y)\" w $options{ps} \\
#\"$options{file}\" using (\$1):(\$5) t \"PSNR (Cb)\" w $options{ps} \\
#\"$options{file}\" using (\$1):(\$6) t \"PSNR (Cr)\" w $options{ps}
pause -1
";
}
print DEM_FILE "
reset";
close (DEM_FILE);
}
# USAGE
sub usage {
print STDERR <<EOF;
Usage: plotpsnr.pl [options] 'file'
Options:
-h, --help Display this help message
-quant Display quantizers
-size Display size
-psnr Display PSNR
-iframes Display I frames
-pframes Display P frames
-bframes Display B frames
-aframes Display all frames in different colors
-cmp <file2> Compare two files
-qs <style> Quantizer style
-ss <style> Size style
-ps <style> PSNR style
Default: -quant -size -psnr -qs "p" -ss "i" -ps "p"
Notes:
Comparison is based on file2.
Comparison assumes that the frame numbers of both files fit.
EOF
exit 1;
}
# COMMAND LINE
sub commandline {
$options{qs}="p";
$options{ss}="i";
$options{ps}="p";
GetOptions(
"help|h" => \&usage,
"quant" => \$options{quant},
"size" => \$options{size},
"psnr" => \$options{psnr},
"cmp=s" => \$options{file2},
"iframes" => \$options{iframes},
"pframes" => \$options{pframes},
"bframes" => \$options{bframes},
"aframes" => sub { $options{iframes} = 1;
$options{pframes} = 1;
$options{bframes} = 1; },
"qs=s" => \$options{qs},
"ss=s" => \$options{ss},
"ps=s" => \$options{ps},
) || usage();
if (!($options{quant}||$options{size}||$options{psnr})) {
$options{quant}=1;
$options{size}=1;
$options{psnr}=1;
}
$options{file}="@ARGV";
}
|
