<?php

dl("oggvorbis.so");

/* By default, ogg:// will decode to Signed 16-bit Little Endian */

$fp = fopen('ogg://myaudio.ogg', 'r');

/* Collect some information about the file. */

$metadata = stream_get_meta_data($fp);

/* Inspect the first song (usually the only song,

but OGG/Vorbis files may be chained) */

$songdata = $metadata['wrapper_data'][0];

echo "OGG/Vorbis file encoded by: {$songdata['vendor']}\n.";

echo " {$songdata['channels']} channels of {$songdata['rate']}Hz sampling encoded at {$songdata['bitrate_nominal']}bps.\n";

foreach($songdata['comments'] as $comment){

echo " $comment\n";

}

while ($audio_data = fread($fp, 8192)){

/* Do something with the PCM audio we're extracting from the OGG.

Copying to /dev/dsp is a good target on linux systems,

just remember to setup the device for your sampling mode first. */

}

fclose($fp);

?>

<?php

dl('oggvorbis.so');

$context = stream_context_create(array('ogg'=>array(

'pcm_mode' => OGGVORBIS_PCM_S8, /* Signed 8bit audio */

'rate' => 44100, /* 44kHz CD quality */

'bitrate' => 0.5, /* Midquality VBR */

'channels' => 1, /* Mono */

'serialno' => 12345))); /* Unique within our stream */

/* Open file for appending. This will "chain" a second OGG stream at the end of the first. */

$ogg = fopen('ogg://mysong.ogg', 'a', false, $context);

$pcm = fopen('mysample.pcm', 'r');

/* Compress the raw PCM audio from mysample.pcm into mysong.ogg */

stream_copy_to_stream($pcm, $ogg);

fclose($pcm);

fclose($ogg);

?>