wav 파일 구조를 파악하여 생성하는 코드 변경

plugin/captcha/info.php

@@ -0,0 +1,17 @@
+<?php
+include_once("./_common.php");
+
+// prepare an array of wavfiles
+$lc ='/home/tmp/g4s/plugin/captcha/wavs/';
+$wav = $lc.'captcha.wav';
+
+$fields = join('/',array( 'H8ChunkID', 'VChunkSize', 'H8Format',
+                          'H8Subchunk1ID', 'VSubchunk1Size',
+                          'vAudioFormat', 'vNumChannels', 'VSampleRate',
+                          'VByteRate', 'vBlockAlign', 'vBitsPerSample' ));
+
+$fp     = fopen($wav,'rb');
+$header = fread($fp,36);
+$info   = unpack($fields,$header);
+print_r2($info);
+?>