Timers WIP

Added getID3

1 files changed, 180 insertions, 0 deletions

diff --git a/getid3/module.audio.shorten.php b/getid3/module.audio.shorten.php
new file mode 100644
index 0000000..a9eb1ab
--- /dev/null
+++ b/getid3/module.audio.shorten.php
@@ -0,0 +1,180 @@
+<?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.shorten.php                                    //
+// module for analyzing Shorten Audio files                    //
+// dependencies: NONE                                          //
+//                                                            ///
+/////////////////////////////////////////////////////////////////
+
+
+class getid3_shorten
+{
+
+	function getid3_shorten(&$fd, &$ThisFileInfo) {
+
+		fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET);
+
+		$ShortenHeader = fread($fd, 8);
+		if (substr($ShortenHeader, 0, 4) != 'ajkg') {
+			$ThisFileInfo['error'][] = 'Expecting "ajkg" at offset '.$ThisFileInfo['avdataoffset'].', found "'.substr($ShortenHeader, 0, 4).'"';
+			return false;
+		}
+		$ThisFileInfo['fileformat']            = 'shn';
+		$ThisFileInfo['audio']['dataformat']   = 'shn';
+		$ThisFileInfo['audio']['lossless']     = true;
+		$ThisFileInfo['audio']['bitrate_mode'] = 'vbr';
+
+		$ThisFileInfo['shn']['version'] = getid3_lib::LittleEndian2Int(substr($ShortenHeader, 4, 1));
+
+		fseek($fd, $ThisFileInfo['avdataend'] - 12, SEEK_SET);
+		$SeekTableSignatureTest = fread($fd, 12);
+		$ThisFileInfo['shn']['seektable']['present'] = (bool) (substr($SeekTableSignatureTest, 4, 8) == 'SHNAMPSK');
+		if ($ThisFileInfo['shn']['seektable']['present']) {
+			$ThisFileInfo['shn']['seektable']['length'] = getid3_lib::LittleEndian2Int(substr($SeekTableSignatureTest, 0, 4));
+			$ThisFileInfo['shn']['seektable']['offset'] = $ThisFileInfo['avdataend'] - $ThisFileInfo['shn']['seektable']['length'];
+			fseek($fd, $ThisFileInfo['shn']['seektable']['offset'], SEEK_SET);
+			$SeekTableMagic = fread($fd, 4);
+			if ($SeekTableMagic != 'SEEK') {
+
+				$ThisFileInfo['error'][] = 'Expecting "SEEK" at offset '.$ThisFileInfo['shn']['seektable']['offset'].', found "'.$SeekTableMagic.'"';
+				return false;
+
+			} else {
+
+				// typedef struct tag_TSeekEntry
+				// {
+				//   unsigned long SampleNumber;
+				//   unsigned long SHNFileByteOffset;
+				//   unsigned long SHNLastBufferReadPosition;
+				//   unsigned short SHNByteGet;
+				//   unsigned short SHNBufferOffset;
+				//   unsigned short SHNFileBitOffset;
+				//   unsigned long SHNGBuffer;
+				//   unsigned short SHNBitShift;
+				//   long CBuf0[3];
+				//   long CBuf1[3];
+				//   long Offset0[4];
+				//   long Offset1[4];
+				// }TSeekEntry;
+
+				$SeekTableData = fread($fd, $ThisFileInfo['shn']['seektable']['length'] - 16);
+				$ThisFileInfo['shn']['seektable']['entry_count'] = floor(strlen($SeekTableData) / 80);
+				//$ThisFileInfo['shn']['seektable']['entries'] = array();
+				//$SeekTableOffset = 0;
+				//for ($i = 0; $i < $ThisFileInfo['shn']['seektable']['entry_count']; $i++) {
+				//	$SeekTableEntry['sample_number'] = getid3_lib::LittleEndian2Int(substr($SeekTableData, $SeekTableOffset, 4));
+				//	$SeekTableOffset += 4;
+				//	$SeekTableEntry['shn_file_byte_offset'] = getid3_lib::LittleEndian2Int(substr($SeekTableData, $SeekTableOffset, 4));
+				//	$SeekTableOffset += 4;
+				//	$SeekTableEntry['shn_last_buffer_read_position'] = getid3_lib::LittleEndian2Int(substr($SeekTableData, $SeekTableOffset, 4));
+				//	$SeekTableOffset += 4;
+				//	$SeekTableEntry['shn_byte_get'] = getid3_lib::LittleEndian2Int(substr($SeekTableData, $SeekTableOffset, 2));
+				//	$SeekTableOffset += 2;
+				//	$SeekTableEntry['shn_buffer_offset'] = getid3_lib::LittleEndian2Int(substr($SeekTableData, $SeekTableOffset, 2));
+				//	$SeekTableOffset += 2;
+				//	$SeekTableEntry['shn_file_bit_offset'] = getid3_lib::LittleEndian2Int(substr($SeekTableData, $SeekTableOffset, 2));
+				//	$SeekTableOffset += 2;
+				//	$SeekTableEntry['shn_gbuffer'] = getid3_lib::LittleEndian2Int(substr($SeekTableData, $SeekTableOffset, 4));
+				//	$SeekTableOffset += 4;
+				//	$SeekTableEntry['shn_bit_shift'] = getid3_lib::LittleEndian2Int(substr($SeekTableData, $SeekTableOffset, 2));
+				//	$SeekTableOffset += 2;
+				//	for ($j = 0; $j < 3; $j++) {
+				//		$SeekTableEntry['cbuf0'][$j] = getid3_lib::LittleEndian2Int(substr($SeekTableData, $SeekTableOffset, 4));
+				//		$SeekTableOffset += 4;
+				//	}
+				//	for ($j = 0; $j < 3; $j++) {
+				//		$SeekTableEntry['cbuf1'][$j] = getid3_lib::LittleEndian2Int(substr($SeekTableData, $SeekTableOffset, 4));
+				//		$SeekTableOffset += 4;
+				//	}
+				//	for ($j = 0; $j < 4; $j++) {
+				//		$SeekTableEntry['offset0'][$j] = getid3_lib::LittleEndian2Int(substr($SeekTableData, $SeekTableOffset, 4));
+				//		$SeekTableOffset += 4;
+				//	}
+				//	for ($j = 0; $j < 4; $j++) {
+				//		$SeekTableEntry['offset1'][$j] = getid3_lib::LittleEndian2Int(substr($SeekTableData, $SeekTableOffset, 4));
+				//		$SeekTableOffset += 4;
+				//	}
+                //
+				//	$ThisFileInfo['shn']['seektable']['entries'][] = $SeekTableEntry;
+				//}
+
+			}
+
+		}
+
+		if ((bool) ini_get('safe_mode')) {
+			$ThisFileInfo['error'][] = 'PHP running in Safe Mode - backtick operator not available, cannot run shntool to analyze Shorten files';
+			return false;
+		}
+
+		if (GETID3_OS_ISWINDOWS) {
+
+			$RequiredFiles = array('shorten.exe', 'cygwin1.dll', 'head.exe');
+			foreach ($RequiredFiles as $required_file) {
+				if (!is_readable(GETID3_HELPERAPPSDIR.$required_file)) {
+					$ThisFileInfo['error'][] = GETID3_HELPERAPPSDIR.$required_file.' does not exist';
+					return false;
+				}
+			}
+			$commandline = GETID3_HELPERAPPSDIR.'shorten.exe -x "'.$ThisFileInfo['filenamepath'].'" - | '.GETID3_HELPERAPPSDIR.'head.exe -c 64';
+			$commandline = str_replace('/', '\\', $commandline);
+
+		} else {
+
+	        static $shorten_present;
+	        if (!isset($shorten_present)) {
+                $shorten_present = file_exists('/usr/local/bin/shorten') || `which shorten`;
+            }
+            if (!$shorten_present) {
+                $ThisFileInfo['error'][] = 'shorten binary was not found in path or /usr/local/bin';
+                return false;
+            }
+            $commandline = (file_exists('/usr/local/bin/shorten') ? '/usr/local/bin/' : '' ) . 'shorten -x '.escapeshellarg($ThisFileInfo['filenamepath']).' - | head -c 64';
+
+		}
+
+		$output = `$commandline`;
+
+		if (!empty($output) && (substr($output, 12, 4) == 'fmt ')) {
+
+			getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.audio-video.riff.php', __FILE__, true);
+
+			$fmt_size = getid3_lib::LittleEndian2Int(substr($output, 16, 4));
+			$DecodedWAVFORMATEX = getid3_riff::RIFFparseWAVEFORMATex(substr($output, 20, $fmt_size));
+			$ThisFileInfo['audio']['channels']        = $DecodedWAVFORMATEX['channels'];
+			$ThisFileInfo['audio']['bits_per_sample'] = $DecodedWAVFORMATEX['bits_per_sample'];
+			$ThisFileInfo['audio']['sample_rate']     = $DecodedWAVFORMATEX['sample_rate'];
+
+			if (substr($output, 20 + $fmt_size, 4) == 'data') {
+
+				$ThisFileInfo['playtime_seconds'] = getid3_lib::LittleEndian2Int(substr($output, 20 + 4 + $fmt_size, 4)) / $DecodedWAVFORMATEX['raw']['nAvgBytesPerSec'];
+
+			} else {
+
+				$ThisFileInfo['error'][] = 'shorten failed to decode DATA chunk to expected location, cannot determine playtime';
+				return false;
+
+			}
+
+			$ThisFileInfo['audio']['bitrate'] = (($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) / $ThisFileInfo['playtime_seconds']) * 8;
+
+		} else {
+
+			$ThisFileInfo['error'][] = 'shorten failed to decode file to WAV for parsing';
+			return false;
+
+		}
+
+		return true;
+	}
+
+}
+
+?>
\ No newline at end of file