it technically logs in and streams.. but thats it, complete rewrite almost everything broken

1 files changed, 148 insertions, 0 deletions

diff --git a/modules/getid3/module.audio.lpac.php b/modules/getid3/module.audio.lpac.php
new file mode 100644
index 00000000..dde8ba5a
--- /dev/null
+++ b/modules/getid3/module.audio.lpac.php
@@ -0,0 +1,148 @@
+<?php
+// +----------------------------------------------------------------------+

+// | PHP version 5                                                        |

+// +----------------------------------------------------------------------+

+// | Copyright (c) 2002-2006 James Heinrich, Allan Hansen                 |

+// +----------------------------------------------------------------------+

+// | This source file is subject to version 2 of the GPL license,         |

+// | that is bundled with this package in the file license.txt and is     |

+// | available through the world-wide-web at the following url:           |

+// | http://www.gnu.org/copyleft/gpl.html                                 |
+// +----------------------------------------------------------------------+
+// | getID3() - http://getid3.sourceforge.net or http://www.getid3.org    |
+// +----------------------------------------------------------------------+

+// | Authors: James Heinrich <infoØgetid3*org>                            |

+// |          Allan Hansen <ahØartemis*dk>                                |

+// +----------------------------------------------------------------------+
+// | module.audio.lpac.php                                                |
+// | Module for analyzing LPAC Audio files                                |
+// | dependencies: module.audio-video.riff.php                            |
+// +----------------------------------------------------------------------+

+//

+// $Id: module.audio.lpac.php,v 1.2 2006/11/02 10:48:01 ah Exp $
+
+        
+        
+class getid3_lpac extends getid3_handler
+{
+
+    public function Analyze() {
+        
+        $getid3 = $this->getid3;
+        
+        $getid3->include_module('audio-video.riff');
+        
+        // Magic bytes - 'LPAC'
+        
+        fseek($getid3->fp, $getid3->info['avdataoffset'], SEEK_SET);
+        $lpac_header = fread($getid3->fp, 14);
+        
+        $getid3->info['avdataoffset'] += 14;
+        
+        $getid3->info['lpac'] = array ();
+        $info_lpac = &$getid3->info['lpac'];
+
+        $getid3->info['fileformat']               = 'lpac';
+        $getid3->info['audio']['dataformat']      = 'lpac';
+        $getid3->info['audio']['lossless']        = true;
+        $getid3->info['audio']['bitrate_mode']    = 'vbr';
+                                                  
+        $info_lpac['file_version']     = getid3_lib::BigEndian2Int($lpac_header{4});
+        $flags['audio_type']                      = getid3_lib::BigEndian2Int($lpac_header{5});
+        $info_lpac['total_samples']    = getid3_lib::BigEndian2Int(substr($lpac_header,  6, 4));
+        $flags['parameters']                      = getid3_lib::BigEndian2Int(substr($lpac_header, 10, 4));
+
+        $info_lpac['flags']['is_wave'] = (bool)($flags['audio_type'] & 0x40);
+        $info_lpac['flags']['stereo']  = (bool)($flags['audio_type'] & 0x04);
+        $info_lpac['flags']['24_bit']  = (bool)($flags['audio_type'] & 0x02);
+        $info_lpac['flags']['16_bit']  = (bool)($flags['audio_type'] & 0x01);
+
+        if ($info_lpac['flags']['24_bit'] && $info_lpac['flags']['16_bit']) {
+            $getid3->warning('24-bit and 16-bit flags cannot both be set');
+        }
+
+        $info_lpac['flags']['fast_compress']             =   (bool)($flags['parameters'] & 0x40000000);
+        $info_lpac['flags']['random_access']             =   (bool)($flags['parameters'] & 0x08000000);
+        $info_lpac['block_length']                       = pow(2, (($flags['parameters'] & 0x07000000) >> 24)) * 256;
+        $info_lpac['flags']['adaptive_prediction_order'] =   (bool)($flags['parameters'] & 0x00800000);
+        $info_lpac['flags']['adaptive_quantization']     =   (bool)($flags['parameters'] & 0x00400000);
+        $info_lpac['flags']['joint_stereo']              =   (bool)($flags['parameters'] & 0x00040000);
+        $info_lpac['quantization']                       =         ($flags['parameters'] & 0x00001F00) >> 8;
+        $info_lpac['max_prediction_order']               =         ($flags['parameters'] & 0x0000003F);
+
+        if ($info_lpac['flags']['fast_compress'] && ($info_lpac['max_prediction_order'] != 3)) {
+            $getid3->warning('max_prediction_order expected to be "3" if fast_compress is true, actual value is "'.$info_lpac['max_prediction_order'].'"');
+        }
+        
+        switch ($info_lpac['file_version']) {
+        
+            case 6:
+                if ($info_lpac['flags']['adaptive_quantization']) {
+                    $getid3->warning('adaptive_quantization expected to be false in LPAC file stucture v6, actually true');
+                }
+                if ($info_lpac['quantization'] != 20) {
+                    $getid3->warning('Quantization expected to be 20 in LPAC file stucture v6, actually '.$info_lpac['flags']['Q']);
+                }
+                break;
+
+        
+            default:
+                //$getid3->warning('This version of getID3() only supports LPAC file format version 6, this file is version '.$info_lpac['file_version'].' - please report to info@getid3.org');
+                break;
+        }
+
+        // Clone getid3 - messing with something - better safe than sorry
+        $clone = clone $getid3;
+        
+        // Analyze clone by fp
+        $riff = new getid3_riff($clone);
+        $riff->Analyze();
+        
+        // Import from clone and destroy
+        $getid3->info['avdataoffset']                = $clone->info['avdataoffset'];
+        $getid3->info['riff']                        = $clone->info['riff'];
+        //$info_lpac['comments']['comment'] = $clone->info['comments'];
+        $getid3->info['audio']['sample_rate']        = $clone->info['audio']['sample_rate'];
+        $getid3->warnings($clone->warnings());
+        unset($clone);
+        
+        $getid3->info['audio']['channels'] = ($info_lpac['flags']['stereo'] ? 2 : 1);
+
+        if ($info_lpac['flags']['24_bit']) {
+            $getid3->info['audio']['bits_per_sample'] = $getid3->info['riff']['audio'][0]['bits_per_sample'];
+        } elseif ($info_lpac['flags']['16_bit']) {
+            $getid3->info['audio']['bits_per_sample'] = 16;
+        } else {
+            $getid3->info['audio']['bits_per_sample'] = 8;
+        }
+
+        if ($info_lpac['flags']['fast_compress']) {
+             // fast
+            $getid3->info['audio']['encoder_options'] = '-1';
+        } else {
+            switch ($info_lpac['max_prediction_order']) {
+                case 20: // simple
+                    $getid3->info['audio']['encoder_options'] = '-2';
+                    break;
+                case 30: // medium
+                    $getid3->info['audio']['encoder_options'] = '-3';
+                    break;
+                case 40: // high
+                    $getid3->info['audio']['encoder_options'] = '-4';
+                    break;
+                case 60: // extrahigh
+                    $getid3->info['audio']['encoder_options'] = '-5';
+                    break;
+            }
+        }
+
+        $getid3->info['playtime_seconds'] = $info_lpac['total_samples'] / $getid3->info['audio']['sample_rate'];
+        $getid3->info['audio']['bitrate'] = (($getid3->info['avdataend'] - $getid3->info['avdataoffset']) * 8) / $getid3->info['playtime_seconds'];
+
+        return true;
+    }
+
+}
+
+
+?>
\ No newline at end of file