Timers WIP

Added getID3

1 files changed, 221 insertions, 0 deletions

diff --git a/getid3/module.audio.bonk.php b/getid3/module.audio.bonk.php
new file mode 100644
index 0000000..fef9782
--- /dev/null
+++ b/getid3/module.audio.bonk.php
@@ -0,0 +1,221 @@
+<?php
+/////////////////////////////////////////////////////////////////
+/// getID3() by James Heinrich <info@getid3.org>               //
+//  available at http://getid3.sourceforge.net                 //
+//            or http://www.getid3.org                         //
+/////////////////////////////////////////////////////////////////
+// See readme.txt for more details                             //
+/////////////////////////////////////////////////////////////////
+//                                                             //
+// module.audio.la.php                                         //
+// module for analyzing BONK audio files                       //
+// dependencies: module.tag.id3v2.php (optional)               //
+//                                                            ///
+/////////////////////////////////////////////////////////////////
+
+
+class getid3_bonk
+{
+	function getid3_bonk(&$fd, &$ThisFileInfo) {
+
+		// shortcut
+		$ThisFileInfo['bonk'] = array();
+		$thisfile_bonk        = &$ThisFileInfo['bonk'];
+
+		$thisfile_bonk['dataoffset']      = $ThisFileInfo['avdataoffset'];
+		$thisfile_bonk['dataend']         = $ThisFileInfo['avdataend'];
+
+		if ($thisfile_bonk['dataend'] >= pow(2, 31)) {
+
+			$ThisFileInfo['warning'][] = 'Unable to parse BONK file from end (v0.6+ preferred method) because PHP filesystem functions only support up to 2GB';
+
+		} else {
+
+			// scan-from-end method, for v0.6 and higher
+			fseek($fd, $thisfile_bonk['dataend'] - 8, SEEK_SET);
+			$PossibleBonkTag = fread($fd, 8);
+			while ($this->BonkIsValidTagName(substr($PossibleBonkTag, 4, 4), true)) {
+				$BonkTagSize = getid3_lib::LittleEndian2Int(substr($PossibleBonkTag, 0, 4));
+				fseek($fd, 0 - $BonkTagSize, SEEK_CUR);
+				$BonkTagOffset = ftell($fd);
+				$TagHeaderTest = fread($fd, 5);
+				if (($TagHeaderTest{0} != "\x00") || (substr($PossibleBonkTag, 4, 4) != strtolower(substr($PossibleBonkTag, 4, 4)))) {
+					$ThisFileInfo['error'][] = 'Expecting "Ø'.strtoupper(substr($PossibleBonkTag, 4, 4)).'" at offset '.$BonkTagOffset.', found "'.$TagHeaderTest.'"';
+					return false;
+				}
+				$BonkTagName = substr($TagHeaderTest, 1, 4);
+
+				$thisfile_bonk[$BonkTagName]['size']   = $BonkTagSize;
+				$thisfile_bonk[$BonkTagName]['offset'] = $BonkTagOffset;
+				$this->HandleBonkTags($fd, $BonkTagName, $ThisFileInfo);
+				$NextTagEndOffset = $BonkTagOffset - 8;
+				if ($NextTagEndOffset < $thisfile_bonk['dataoffset']) {
+					if (empty($ThisFileInfo['audio']['encoder'])) {
+						$ThisFileInfo['audio']['encoder'] = 'Extended BONK v0.9+';
+					}
+					return true;
+				}
+				fseek($fd, $NextTagEndOffset, SEEK_SET);
+				$PossibleBonkTag = fread($fd, 8);
+			}
+
+		}
+
+		// seek-from-beginning method for v0.4 and v0.5
+		if (empty($thisfile_bonk['BONK'])) {
+			fseek($fd, $thisfile_bonk['dataoffset'], SEEK_SET);
+			do {
+				$TagHeaderTest = fread($fd, 5);
+				switch ($TagHeaderTest) {
+					case "\x00".'BONK':
+						if (empty($ThisFileInfo['audio']['encoder'])) {
+							$ThisFileInfo['audio']['encoder'] = 'BONK v0.4';
+						}
+						break;
+
+					case "\x00".'INFO':
+						$ThisFileInfo['audio']['encoder'] = 'Extended BONK v0.5';
+						break;
+
+					default:
+						break 2;
+				}
+				$BonkTagName = substr($TagHeaderTest, 1, 4);
+				$thisfile_bonk[$BonkTagName]['size']   = $thisfile_bonk['dataend'] - $thisfile_bonk['dataoffset'];
+				$thisfile_bonk[$BonkTagName]['offset'] = $thisfile_bonk['dataoffset'];
+				$this->HandleBonkTags($fd, $BonkTagName, $ThisFileInfo);
+
+			} while (true);
+		}
+
+		// parse META block for v0.6 - v0.8
+		if (empty($thisfile_bonk['INFO']) && isset($thisfile_bonk['META']['tags']['info'])) {
+			fseek($fd, $thisfile_bonk['META']['tags']['info'], SEEK_SET);
+			$TagHeaderTest = fread($fd, 5);
+			if ($TagHeaderTest == "\x00".'INFO') {
+				$ThisFileInfo['audio']['encoder'] = 'Extended BONK v0.6 - v0.8';
+
+				$BonkTagName = substr($TagHeaderTest, 1, 4);
+				$thisfile_bonk[$BonkTagName]['size']   = $thisfile_bonk['dataend'] - $thisfile_bonk['dataoffset'];
+				$thisfile_bonk[$BonkTagName]['offset'] = $thisfile_bonk['dataoffset'];
+				$this->HandleBonkTags($fd, $BonkTagName, $ThisFileInfo);
+			}
+		}
+
+		if (empty($ThisFileInfo['audio']['encoder'])) {
+			$ThisFileInfo['audio']['encoder'] = 'Extended BONK v0.9+';
+		}
+		if (empty($thisfile_bonk['BONK'])) {
+			unset($ThisFileInfo['bonk']);
+		}
+		return true;
+
+	}
+
+	function HandleBonkTags(&$fd, &$BonkTagName, &$ThisFileInfo) {
+
+		switch ($BonkTagName) {
+			case 'BONK':
+				// shortcut
+				$thisfile_bonk_BONK = &$ThisFileInfo['bonk']['BONK'];
+
+				$BonkData = "\x00".'BONK'.fread($fd, 17);
+				$thisfile_bonk_BONK['version']            =        getid3_lib::LittleEndian2Int(substr($BonkData,  5, 1));
+				$thisfile_bonk_BONK['number_samples']     =        getid3_lib::LittleEndian2Int(substr($BonkData,  6, 4));
+				$thisfile_bonk_BONK['sample_rate']        =        getid3_lib::LittleEndian2Int(substr($BonkData, 10, 4));
+
+				$thisfile_bonk_BONK['channels']           =        getid3_lib::LittleEndian2Int(substr($BonkData, 14, 1));
+				$thisfile_bonk_BONK['lossless']           = (bool) getid3_lib::LittleEndian2Int(substr($BonkData, 15, 1));
+				$thisfile_bonk_BONK['joint_stereo']       = (bool) getid3_lib::LittleEndian2Int(substr($BonkData, 16, 1));
+				$thisfile_bonk_BONK['number_taps']        =        getid3_lib::LittleEndian2Int(substr($BonkData, 17, 2));
+				$thisfile_bonk_BONK['downsampling_ratio'] =        getid3_lib::LittleEndian2Int(substr($BonkData, 19, 1));
+				$thisfile_bonk_BONK['samples_per_packet'] =        getid3_lib::LittleEndian2Int(substr($BonkData, 20, 2));
+
+				$ThisFileInfo['avdataoffset'] = $thisfile_bonk_BONK['offset'] + 5 + 17;
+				$ThisFileInfo['avdataend']    = $thisfile_bonk_BONK['offset'] + $thisfile_bonk_BONK['size'];
+
+				$ThisFileInfo['fileformat']               = 'bonk';
+				$ThisFileInfo['audio']['dataformat']      = 'bonk';
+				$ThisFileInfo['audio']['bitrate_mode']    = 'vbr'; // assumed
+				$ThisFileInfo['audio']['channels']        = $thisfile_bonk_BONK['channels'];
+				$ThisFileInfo['audio']['sample_rate']     = $thisfile_bonk_BONK['sample_rate'];
+				$ThisFileInfo['audio']['channelmode']     = ($thisfile_bonk_BONK['joint_stereo'] ? 'joint stereo' : 'stereo');
+				$ThisFileInfo['audio']['lossless']        = $thisfile_bonk_BONK['lossless'];
+				$ThisFileInfo['audio']['codec']           = 'bonk';
+
+				$ThisFileInfo['playtime_seconds'] = $thisfile_bonk_BONK['number_samples'] / ($thisfile_bonk_BONK['sample_rate'] * $thisfile_bonk_BONK['channels']);
+				if ($ThisFileInfo['playtime_seconds'] > 0) {
+					$ThisFileInfo['audio']['bitrate'] = (($ThisFileInfo['bonk']['dataend'] - $ThisFileInfo['bonk']['dataoffset']) * 8) / $ThisFileInfo['playtime_seconds'];
+				}
+				break;
+
+			case 'INFO':
+				// shortcut
+				$thisfile_bonk_INFO = &$ThisFileInfo['bonk']['INFO'];
+
+				$thisfile_bonk_INFO['version'] = getid3_lib::LittleEndian2Int(fread($fd, 1));
+				$thisfile_bonk_INFO['entries_count'] = 0;
+				$NextInfoDataPair = fread($fd, 5);
+				if (!$this->BonkIsValidTagName(substr($NextInfoDataPair, 1, 4))) {
+					while (!feof($fd)) {
+						//$CurrentSeekInfo['offset']  = getid3_lib::LittleEndian2Int(substr($NextInfoDataPair, 0, 4));
+						//$CurrentSeekInfo['nextbit'] = getid3_lib::LittleEndian2Int(substr($NextInfoDataPair, 4, 1));
+						//$thisfile_bonk_INFO[] = $CurrentSeekInfo;
+
+						$NextInfoDataPair = fread($fd, 5);
+						if ($this->BonkIsValidTagName(substr($NextInfoDataPair, 1, 4))) {
+							fseek($fd, -5, SEEK_CUR);
+							break;
+						}
+						$thisfile_bonk_INFO['entries_count']++;
+					}
+				}
+				break;
+
+			case 'META':
+				$BonkData = "\x00".'META'.fread($fd, $ThisFileInfo['bonk']['META']['size'] - 5);
+				$ThisFileInfo['bonk']['META']['version'] = getid3_lib::LittleEndian2Int(substr($BonkData,  5, 1));
+
+				$MetaTagEntries = floor(((strlen($BonkData) - 8) - 6) / 8); // BonkData - xxxxmeta - ØMETA
+				$offset = 6;
+				for ($i = 0; $i < $MetaTagEntries; $i++) {
+					$MetaEntryTagName   =                  substr($BonkData, $offset, 4);
+					$offset += 4;
+					$MetaEntryTagOffset = getid3_lib::LittleEndian2Int(substr($BonkData, $offset, 4));
+					$offset += 4;
+					$ThisFileInfo['bonk']['META']['tags'][$MetaEntryTagName] = $MetaEntryTagOffset;
+				}
+				break;
+
+			case ' ID3':
+				$ThisFileInfo['audio']['encoder'] = 'Extended BONK v0.9+';
+
+				// ID3v2 checking is optional
+				if (class_exists('getid3_id3v2')) {
+					$ThisFileInfo['bonk'][' ID3']['valid'] = new getid3_id3v2($fd, $ThisFileInfo, $ThisFileInfo['bonk'][' ID3']['offset'] + 2);
+				}
+				break;
+
+			default:
+				$ThisFileInfo['warning'][] = 'Unexpected Bonk tag "'.$BonkTagName.'" at offset '.$ThisFileInfo['bonk'][$BonkTagName]['offset'];
+				break;
+
+		}
+	}
+
+	function BonkIsValidTagName($PossibleBonkTag, $ignorecase=false) {
+		static $BonkIsValidTagName = array('BONK', 'INFO', ' ID3', 'META');
+		foreach ($BonkIsValidTagName as $validtagname) {
+			if ($validtagname == $PossibleBonkTag) {
+				return true;
+			} elseif ($ignorecase && (strtolower($validtagname) == strtolower($PossibleBonkTag))) {
+				return true;
+			}
+		}
+		return false;
+	}
+
+}
+
+
+?>
\ No newline at end of file