SWFMovie::stopSound
Hey all,
For those using Ming 0.3 (like me), there is a way to calculate the length of the MP3 you are using. It might be a bit iffy for VBR files, but it seems to work well for the files I've tested thus far. The process of calculating the frame length (and size) is detailed at http://www.mpgedit.org/mpgedit/mpeg_format/mpeghdr.htm
<?php
function get_mp3_len ($file) {
$rate1=array(0, 32, 64, 96, 128, 160, 192, 224, 256, 288, 320, 352, 384, 416, 448, "bad");
$rate2=array(0, 32, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 384, "bad");
$rate3=array(0, 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, "bad");
$rate4=array(0, 32, 48, 56, 64, 80, 96, 112, 128, 144, 160, 176, 192, 224, 256, "bad");
$rate5=array(0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160, "bad");
$bitrate=array(
'1' => $rate5,
'2' => $rate5,
'3' => $rate4,
'9' => $rate5,
'10' => $rate5,
'11' => $rate4,
'13' => $rate3,
'14' => $rate2,
'15' => $rate1
);
$sample=array(
'0' => 11025,
'1' => 12000,
'2' => 8000,
'8' => 22050,
'9' => 24000,
'10' => 16000,
'12' => 44100,
'13' => 48000,
'14' => 32000
);
$fd=fopen($file, 'rb');
$header=fgets($fd, 5);
fclose($fd);
$bits="";
while (strlen($header) > 0) {
//var_dump($header);
$bits.=str_pad(base_convert(ord($header{0}), 10, 2), 8, '0', STR_PAD_LEFT);
$header=substr($header, 1);
}
$bits=substr($bits, 11); // lets strip the frame sync bits first.
$version=substr($bits, 0, 2); // this gives us the version
$layer=base_convert(substr($bits, 2, 2), 2, 10); // this gives us the layer
$verlay=base_convert(substr($bits, 0, 4), 2, 10); // this gives us both
$rateidx=base_convert(substr($bits, 5, 4), 2, 10); // this gives us the bitrate index
$sampidx=base_convert($version.substr($bits, 9, 2), 2, 10); // this gives the sample index
$padding=substr($bits, 11, 1); // are we padding frames?
$rate=$bitrate[$verlay][$rateidx];
$samp=$sample[$sampidx];
$framelen=0;
$framesize=384; // Size of the frame in samples
if ($layer == 3) { // layer 1?
$framelen=(12 * ($rate * 1000) / $samp + $padding) * 4;
} else { // Layer 2 and 3
$framelen=144 * ($rate * 1000) / $samp + $padding;
$framesize=1152;
}
$headerlen=4 + ($bits{4} == 0 ? '2' : '0');
return (filesize($file) - $headerlen) / $framelen / ($samp / $framesize);
}
?>
SWFMovie::streamMP3
(PHP 4 >= 4.3.3)
SWFMovie::streamMP3 — Diffuse un fichier MP3
Description
Avertissement
Cette fonction est EXPERIMENTALE. Cela signifie que le comportement de cette fonction, son nom et, concrètement, TOUT ce qui est documenté ici peut changer dans un futur proche, SANS PREAVIS ! Soyez-en conscient, et utilisez cette fonction à vos risques et périls.
Diffuse le fichier MP3 mp3file fourni.
Cette méthode n'est pas vraiment robuste lors de la gestion des bizarreries (peut ignorer un tag ID3 initial, mais c'est bien tout).
Notez que le film n'est pas assez compact pour contenir le flux MP3 en entier - vous devez ajouter (longueur de la musique * frames par seconde) frames pour y récupérer le flux complet.
Liste de paramètres
-
mp3file -
Peut être un pointeur de fichier retourné par la fonction fopen() ou les données MP3, sous la forme d'une chaîne binaire.
-
skip -
Nombre de secondes à ignorer.
Valeurs de retour
Aucune valeur n'est retournée.
Historique
| Version | Description |
|---|---|
| 5.2.0 | Le paramètre skip a été ajouté |
Exemples
Exemple #1 Exemple de diffusion
<?php
$m = new SWFMovie();
$m->setRate(12.0);
$m->streamMp3(file_get_contents("distortobass.mp3"));
// utilisez votre propre MP3
// La durée du fichier est 11.85 secondes à 12.0 fps = 142 frames
$m->setFrames(142);
header('Content-type: application/x-shockwave-flash');
$m->output();
?>
add a note
User Contributed Notes
SWFMovie::streamMP3 - [6 notes]
aaronmason85 at gmail dot com ¶
4 years ago
Richard Trigaux ¶
4 years ago
Seems that this function only handles some MP3 files with specified sample rates and not others. 44100 and 21050 work. With the lame MP3 converter, this is obtained with setting the "bit rate" at 112 (average compression/quality), mono or stereo. Other values may work, probably multiples, I did not tried all.
diana ¶
5 years ago
If you need to play an mp3 fully you need to do something like:
<?php
$len = $m->streamMp3(fopen("sound.mp3", "r"));
$m->setFrames($len);
?>
This works only in Ming 0.4. I'm not 100% sure but it doesn't sound to work on Ming 0.3
boreckiwebs at gmail dot com ¶
6 years ago
if you want to control the sound use these functions like this:
<?php
$m -> add(new SWFAction('
stop(); // pauses the song
goToAndStop(1); // stops the song, and goes back to the beginning
play(); // plays the song from current position
'));
?>
i hope this is helpful
boo at php dot net ¶
10 years ago
Don't forget to use fopen function in example above !
Use
<?php
$m->streamMp3(fopen("distortobass.mp3", "rb"));
instead of
$m->streamMp3("distortobass.mp3");
?>
I hope this is useful for you :)
mued at muetdhiver dot org ¶
12 years ago
a nice feature to handle Id3tag is to get support from Unix mp3info command into a returning exec parsing