$origbitrate = -1;

$output = `ffmpeg -i $filename 2>&1`;

$output =~s/^.*?Audio.*?, (\d*) kb\/s.*$/$1/s;

print $output . "\n";

if ($output =~ /^\d+$/) {
    $origbitrate = $output;
}
print "Original Bitrate: " . $origbitrate . "\n";

#
# If maximum bitrate is less than the source bitrate, allow the max bitrate to remain
#

$bitrate = $maxbitrate;

if (($origbitrate != -1) && ($maxbitrate > $origbitrate)) {
    print "maxbitrate is greater than original.  Using source bitrate to save space\n";