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#!/usr/bin/perl
## usage: w32codec_dl.pl (codec.conf location)
# this script will use MS's codec dl interface as used by MS Media Player
# to attempt to locate the codecs listed in codecs.conf. It will download
# them to a directory "codecs/" below the current dir.
# you will need the libwww-perl stuff and the utility "cabextract"
# which may be found at http://www.kyz.uklinux.net/cabextract.php3
# By Tom Lees, 2002. I hereby place this script into the public domain.
#use LWP::Debug qw(+);
use LWP::UserAgent;
$ua = LWP::UserAgent->new;
$ua->agent ("Mozilla/4.0 (compatible; MSIE 5.0; Windows 98; DigExt)");
# Parse the etc/codecs.conf file
my $cconf = $ARGV[0];
open CCONF, "<$cconf";
my $codec = "(none)";
my $mscodec = 0;
my $cc, @ccl;
mkdir "codecs";
chdir "codecs";
CC: while (<CCONF>)
{
next CC if (m/^[ \t]*\;/);
s/\;.*//g;
s/#.*//g;
if (m/^videocodec (.*)/)
{
$codec = $1;
}
elsif (m/^[ \t]+driver (.*)/)
{
if ($1 eq "dshow" || $1 eq "vfw")
{
$mscodec = 1;
}
else
{
$mscodec = 0;
}
}
elsif (m/^[ \t]+fourcc (.*)/ && $mscodec == 1)
{
$cclist = $1;
chomp $cclist;
#@ccl = ();
do
{
if ($cclist =~ m/\"(....)\"[, ]*(.*)/)
{
$cc = $1;
$cclist = $2;
}
elsif ($cclist =~ m/[, ]*(....)[, ]*(.*)/)
{
$cc = $1;
$cclist = $2;
}
else
{
$cc = $cclist;
$cclist = "";
}
if (!($cc =~ m/^[ \t]+/))
{
push @ccl, ($cc);
}
} while (length ($cclist) > 0);
}
}
close CCONF;
# Find the codecs
open CODEC_CABS, ">codecs.locations.info";
%fcc_try = ();
while ($#ccl > 0)
{
$cc = pop (@ccl);
if (!$fcc_try{"$cc"})
{
$fcc_try{"$cc"} = 1;
if (!find_codec ($cc))
{
print "$cc found\n";
}
else
{
print "MS didn't find $cc\n";
}
}
}
close CODEC_CABS;
%got_codecs = ();
sub find_codec
{
my ($fourcc) = @_;
my $guid = sprintf ("%08X", unpack ("V", $fourcc))."-0000-0010-8000-00AA00389B71";
my $req = HTTP::Request->new (POST => "http://activex.microsoft.com/objects/ocget.dll");
$req->header ('Accept', '*/*');
$req->content_type ('application/x-www-form-urlencoded');
$req->content ("CLSID=%7B${guid}%7D\n");
#$req->content ('CLSID={'.${guid}.'}');
my $res = $ua->request ($req);
if ($res->is_success) {
print "Lookup returned success... weird!\n";
return 1;
} else {
# Codec location
if ($res->code == 302)
{
my $loc = $res->headers->header ("Location");
if (!$got_codecs{"$loc"})
{
print CODEC_CABS "$loc\n";
$got_codecs{"$loc"} = 1;
get_codec ($loc);
}
# else
# {
# print "Already have $loc\n";
# }
return 0;
}
else
{
# print "Lookup failed (Microsoft probably doesn't know this codec)\n";
return 1;
}
}
}
sub get_codec
{
my ($url) = @_;
my $req = HTTP::Request->new (GET => $url);
$req->header ("Accept", "*/*");
my $res = $ua->request ($req);
if ($res->is_success)
{
open TMP, ">tmp.cab" or die "Unable to open tmp.cab";
print TMP $res->content;
close TMP;
system "cabextract tmp.cab";
unlink "tmp.cab";
}
else
{
print "No such file!\n";
}
}
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