1)and($fred['version']>1))
{
$fred['bitrate']="8000";
}
else
{
$fred['bitrate']="32000";
}
break;
case "0010":
switch ($index)
{
case "1":
$fred['bitrate']="64000";
break;
case "2":
$fred['bitrate']="48000";
break;
case "3":
$fred['bitrate']="40000";
break;
case "4":
$fred['bitrate']="48000";
break;
case "5":
$fred['bitrate']="16000";
break;
}
break;
case "0011":
switch ($index)
{
case "1":
$fred['bitrate']="96000";
break;
case "2":
$fred['bitrate']="56000";
break;
case "3":
$fred['bitrate']="48000";
break;
case "4":
$fred['bitrate']="56000";
break;
case "5":
$fred['bitrate']="24000";
break;
}
break;
case "0100":
switch ($index)
{
case "1":
$fred['bitrate']="128000";
break;
case "2":
$fred['bitrate']="64000";
break;
case "3":
$fred['bitrate']="56000";
break;
case "4":
$fred['bitrate']="64000";
break;
case "5":
$fred['bitrate']="32000";
break;
}
break;
case "0101":
switch ($index)
{
case "1":
$fred['bitrate']="160000";
break;
case "2":
$fred['bitrate']="80000";
break;
case "3":
$fred['bitrate']="64000";
break;
case "4":
$fred['bitrate']="80000";
break;
case "5":
$fred['bitrate']="40000";
break;
}
break;
case "0110":
switch ($index)
{
case "1":
$fred['bitrate']="192000";
break;
case "2":
$fred['bitrate']="96000";
break;
case "3":
$fred['bitrate']="80000";
break;
case "4":
$fred['bitrate']="96000";
break;
case "5":
$fred['bitrate']="48000";
break;
}
break;
case "0111":
switch ($index)
{
case "1":
$fred['bitrate']="224000";
break;
case "2":
$fred['bitrate']="112000";
break;
case "3":
$fred['bitrate']="96000";
break;
case "4":
$fred['bitrate']="112000";
break;
case "5":
$fred['bitrate']="56000";
break;
}
break;
case "1000":
switch ($index)
{
case "1":
$fred['bitrate']="256000";
break;
case "2":
$fred['bitrate']="128000";
break;
case "3":
$fred['bitrate']="112000";
break;
case "4":
$fred['bitrate']="128000";
break;
case "5":
$fred['bitrate']="64000";
break;
}
break;
case "1001":
switch ($index)
{
case "1":
$fred['bitrate']="288000";
break;
case "2":
$fred['bitrate']="160000";
break;
case "3":
$fred['bitrate']="128000";
break;
case "4":
$fred['bitrate']="144000";
break;
case "5":
$fred['bitrate']="80000";
break;
}
break;
case "1010":
switch ($index)
{
case "1":
$fred['bitrate']="320000";
break;
case "2":
$fred['bitrate']="192000";
break;
case "3":
$fred['bitrate']="160000";
break;
case "4":
$fred['bitrate']="160000";
break;
case "5":
$fred['bitrate']="96000";
break;
}
break;
case "1011":
switch ($index)
{
case "1":
$fred['bitrate']="352000";
break;
case "2":
$fred['bitrate']="224000";
break;
case "3":
$fred['bitrate']="192000";
break;
case "4":
$fred['bitrate']="176000";
break;
case "5":
$fred['bitrate']="112000";
break;
}
break;
case "1100":
switch ($index)
{
case "1":
$fred['bitrate']="384000";
break;
case "2":
$fred['bitrate']="256000";
break;
case "3":
$fred['bitrate']="224000";
break;
case "4":
$fred['bitrate']="192000";
break;
case "5":
$fred['bitrate']="128000";
break;
}
break;
case "1101":
switch ($index)
{
case "1":
$fred['bitrate']="416000";
break;
case "2":
$fred['bitrate']="320000";
break;
case "3":
$fred['bitrate']="256000";
break;
case "4":
$fred['bitrate']="224000";
break;
case "5":
$fred['bitrate']="144000";
break;
}
break;
case "1110":
switch ($index)
{
case "1":
$fred['bitrate']="448000";
break;
case "2":
$fred['bitrate']="384000";
break;
case "3":
$fred['bitrate']="320000";
break;
case "4":
$fred['bitrate']="256000";
break;
case "5":
$fred['bitrate']="160000";
break;
}
break;
case "1111":
$fred['bitrate']="bad";
break;
} // eo switch
// Determine Sample Rate
switch ($fred['version']) {
case "1":
switch (substr($bitstream,12,2)) {
case "00":
$fred['samplerate']="44100";
break;
case "01":
$fred['samplerate']="48000";
break;
case "10":
$fred['samplerate']="32000";
break;
case "11":
$fred['samplerate']="reserved";
break;
} // eo switch
break;
case "2":
switch (substr($bitstream,12,2)) {
case "00":
$fred['samplerate']="22050";
break;
case "01":
$fred['samplerate']="24000";
break;
case "10":
$fred['samplerate']="16000";
break;
case "11":
$fred['samplerate']="reserved";
break;
} // eo switch
break;
case "2.5":
switch (substr($bitstream,12,2)) {
case "00":
$fred['samplerate']="11025";
break;
case "01":
$fred['samplerate']="12000";
break;
case "10":
$fred['samplerate']="8000";
break;
case "11":
$fred['samplerate']="reserved";
break;
} // eo switch
break;
} // eo switch
// Determine whether padding is set on. 0 == no & 1 == yes
$padding = substr($bitstream,14,1);
// Determine the private bit's value. Dont know what for though?
$private = substr($bitstream,15,1);
// Determine Channel mode
switch (substr($bitstream,16,2)) {
case "00":
$fred['cmode']="Stereo";
break;
case "01":
$fred['cmode']="Joint Stereo";
break;
case "10":
$fred['cmode']="Dual Channel";
break;
case "11":
$fred['cmode']="Mono";
break;
} // eo switch
/*
// Determine Mode Extension, actually who cares for the moment
switch (substr($bitstream,18,2)) {
case "00":
$mext="0";
break;
case "01":
$mext="3";
break;
case "10":
$mext="2";
break;
case "11":
$mext="1";
break;
} // eo switch
*/
// Determine Copyright 0 == no & 1 == yes
$fred['copyright'] = substr($bitstream,20,1);
// Determine Original 0 == Copy & 1 == Original
$fred['original'] = substr($bitstream,21,1);
// Determine Emphasis
switch (substr($bitstream,22,2)) {
case "00":
$fred['emphasis']="none";
break;
case "01":
$fred['emphasis']="50/15 ms";
break;
case "10":
$fred['emphasis']="reserved";
break;
case "11":
$fred['emphasis']="CCIT J.17";
break;
} // eo switch
// Determine number of frames.
if ((isset($fred['samplerate'])) and (isset($fred['bitrate']))) {
if ($fred['layer']=="1") {
$fred['frames']=floor($fred['filesize']/(floor(((12*$fred['bitrate'])/($fred['samplerate']+$padding))*4)));
} else {
$fred['frames']=floor($fred['filesize']/(floor((144*$fred['bitrate'])/($fred['samplerate']))));
} // eo if
// Determine number of seconds in song.
if ($fred['layer']=="1") {
$fred['time']=floor((384/$fred['samplerate'])*$fred['frames']);
} else {
$fred['time']=floor((1152/$fred['samplerate'])*$fred['frames']);
} // eo if
} // eo if
// MH: Get MPEG Audio Tag info
fseek($fp,$fred['filesize']-128);
$tag=fread($fp,128);
if (substr($tag,0,3) == "TAG") {
$fred['tagtitle']=substr($tag,3,30);
$fred['tagartist']=substr($tag,33,30);
$fred['tagalbum']=substr($tag,63,30);
$fred['tagyear']=substr($tag,93,4);
$fred['tagcomment']=substr($tag,97,30);
$fred['taggenreid']=ord(substr($tag,127,1));
$fred['taggenrename']= ( $fred['taggenreid'] >= 0 && $fred['taggenreid'] <= 125) ? $genre[$fred['taggenreid']] : "(unkown)";
} // has audio tag ?
fclose($fp);
$fred['filename']=$filename;
return($fred);
} // eo fkt mp3info
function thdots($s,$delim=".") {
while ($s) {
// print "s: $s\n";
$d = substr($s,strlen($s)-3,strlen($s)) .$delim.$d;
// print "d: $d\n";
$s=substr($s,0,strlen($s)-3);
// print "s: $s\n";
// print "\n";
}
// Remove trailing dot
return (substr($d,0,strlen($d)-1));
} // eo fkt thdots
// -------------------------------------------------------
// Here's a usage sample
// -------------------------------------------------------
$myfilename = $REDIRECT_URL ? preg_replace ("/.*\//","",$REDIRECT_URL) : $myfilename;
print "";
print "
";
print "
";
if ( ($myfilename || $REDIRECT_URL) && !$showdir) {
// OK, we have a filename. Try to get info.
$info=mp3info($myfilename);
switch ($info) {
case 1:
print("Cannot open $myfilename. Click on [ls] for file list");
exit;
case 2:
print ("$myfilename does not look like an MP3 file");
exit;
default:
if (gettype($info)!="array") {
print("Strange things happen...");
exit;
}
break;
} // eo switch
print "\n";
print "Filename : ". $info['filename'] ."\n";
print "Filesize : ". thdots($info['filesize']) ." bytes\n";
print "Playing time : ". date("i:s",$info['time']) ." minutes (". $info['time'] ." seconds)\n";
print "Bitrate : ". $info['bitrate']/1000 ." kbit\n";
print "Samplerate : ". $info['samplerate'] ." hz\n";
print "Frames : ". $info['frames'] ."\n";
print "Emphasis : ". $info['emphasis'] ."\n";
print "Channelmode : ". $info['cmode'] ."\n";
print "Version : MPEG ". $info['version'] ." Layer ". $info['layer'] ."\n";
print "CRC : ". $info['crc'] ."\n";
print "Copyright : ". $info['copyright'] ."\n";
print "Original : ". $info['original'] ."\n";
print "\n";
if (isset($info['tagtitle'])) {
print "MPEG Audio Tag ID:\n";
print "Title : ". $info['tagtitle'] ."\n";
print "Artist : ". $info['tagartist'] ."\n";
print "Album : ". $info['tagalbum'] ."\n";
print "Year : ". $info['tagyear'] ."\n";
print "Comment : ". $info['tagcomment'] ."\n";
print "Genre : ". $info['taggenrename'] ." (#". $info['taggenreid'] .")\n";
print "\n";
} else {
print "No MPEG Audio Tag ID found\n";
} // eo has tag?
} else {
// No filename or showdir set. Show available files.
$dhnd=opendir('.');
echo "\n";
echo "MP3-files in current dir:\n";
while ($file=readdir($dhnd)) {
if (ereg("mp3$",$file)) print "$file\n";
}
closedir($dhnd);
echo "\n";
} // eo if got filename?
?>
Please see Brian Wallace' for a better analysis tool: http://sourceforge.net/projects/mpeg-database/
According to Wallace there's a bug in the framesync detection:
You need to ensure n=(ord)255 and n+1>=(ord)224
An ord >= 224 (128+64+32)=224 ensures that the binary expression has at least 8 bits in it and the
first three high order bits are set (i.e. 1) for examle n=(ord)255 & n+1=(ord)=225 the binary
would be:
11111111 11100001 == sync detected... continue
Thanks for the hint, Wallace. Sorry, I don't have the time to fix this right now.
View PHP source anyway: fancy | plain
You cannot download the mp3 files. Although they where taken from IUMA and similar websites, I am not sure they are free. Sorry, but given the way the music industry behaves...