本文整理匯總了PHP中getid3_lib::intValueSupported方法的典型用法代碼示例。如果您正苦於以下問題：PHP getid3_lib::intValueSupported方法的具體用法？PHP getid3_lib::intValueSupported怎麽用？PHP getid3_lib::intValueSupported使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類getid3_lib的用法示例。
在下文中一共展示了getid3_lib::intValueSupported方法的15個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的PHP代碼示例。
示例1: saveAttachment
public function saveAttachment(&$ThisFileInfoIndex, $filename, $offset, $length)
{
try {
if (!getid3_lib::intValueSupported($offset + $length)) {
throw new Exception('cannot extract attachment, it extends beyond the ' . round(PHP_INT_MAX / 1073741824) . 'GB limit');
}
// do not extract at all
if ($this->option_save_attachments === getID3::ATTACHMENTS_NONE) {
unset($ThisFileInfoIndex);
// do not set any
// extract to return array
} elseif ($this->option_save_attachments === getID3::ATTACHMENTS_INLINE) {
// get whole data in one pass, till it is anyway stored in memory
$ThisFileInfoIndex = file_get_contents($this->info['filenamepath'], false, null, $offset, $length);
if ($ThisFileInfoIndex === false || strlen($ThisFileInfoIndex) != $length) {
// verify
throw new Exception('failed to read attachment data');
}
// assume directory path is given
} else {
$dir = rtrim(str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $this->option_save_attachments), DIRECTORY_SEPARATOR);
// check supplied directory
if (!is_dir($dir) || !is_writable($dir)) {
throw new Exception('getID3::saveAttachment() -- supplied path (' . $dir . ') does not exist, or is not writable');
}
// set up destination path
$dest = $dir . DIRECTORY_SEPARATOR . $filename;
// optimize speed if read buffer size is configured to be large enough
// here stream_copy_to_stream() may also be used. need to do speed-compare tests
if ($length <= $this->fread_buffer_size()) {
$data = file_get_contents($this->info['filenamepath'], false, null, $offset, $length);
if ($data === false || strlen($data) != $length) {
// verify
throw new Exception('failed to read attachment data');
}
if (!file_put_contents($dest, $data)) {
throw new Exception('failed to create file ' . $dest);
}
} else {
// optimization not available - copy data in loop
// here stream_copy_to_stream() shouldn't be used because it's internal read buffer may be larger than ours!
getid3_lib::CopyFileParts($this->info['filenamepath'], $dest, $offset, $length);
}
$ThisFileInfoIndex = $dest;
}
} catch (Exception $e) {
unset($ThisFileInfoIndex);
// do not set any is case of error
$this->warning('Failed to extract attachment ' . $filename . ': ' . $e->getMessage());
return false;
}
return true;
}示例2: CopyFileParts
static function CopyFileParts($filename_source, $filename_dest, $offset, $length)
{
if (!getid3_lib::intValueSupported($offset + $length)) {
throw new Exception('cannot copy file portion, it extends beyond the ' . round(PHP_INT_MAX / 1073741824) . 'GB limit');
}
if (is_readable($filename_source) && is_file($filename_source) && ($fp_src = fopen($filename_source, 'rb'))) {
if (is_writable($filename_dest) && is_file($filename_dest) && ($fp_dest = fopen($filename_dest, 'wb'))) {
if (fseek($fp_src, $offset, SEEK_SET) == 0) {
$byteslefttowrite = $length;
while ($byteslefttowrite > 0 && ($buffer = fread($fp_src, min($byteslefttowrite, $this->getid3->fread_buffer_size())))) {
$byteswritten = fwrite($fp_dest, $buffer, $byteslefttowrite);
$byteslefttowrite -= $byteswritten;
}
return true;
} else {
throw new Exception('failed to seek to offset ' . $offset . ' in ' . $this->info['filenamepath']);
}
fclose($fp_dest);
} else {
throw new Exception('failed to open file for reading ' . $this->info['filenamepath']);
}
fclose($fp_src);
} else {
throw new Exception('failed to create file for writing ' . $dest);
}
return false;
}示例3: Analyze
public function Analyze()
{
$info =& $this->getid3->info;
$info['fileformat'] = 'quicktime';
$info['quicktime']['hinting'] = false;
$info['quicktime']['controller'] = 'standard';
// may be overridden if 'ctyp' atom is present
$this->fseek($info['avdataoffset']);
$offset = 0;
$atomcounter = 0;
while ($offset < $info['avdataend']) {
if (!getid3_lib::intValueSupported($offset)) {
$info['error'][] = 'Unable to parse atom at offset ' . $offset . ' because beyond ' . round(PHP_INT_MAX / 1073741824) . 'GB limit of PHP filesystem functions';
break;
}
$this->fseek($offset);
$AtomHeader = $this->fread(8);
$atomsize = getid3_lib::BigEndian2Int(substr($AtomHeader, 0, 4));
$atomname = substr($AtomHeader, 4, 4);
// 64-bit MOV patch by jlegateØktnc*com
if ($atomsize == 1) {
$atomsize = getid3_lib::BigEndian2Int($this->fread(8));
}
$info['quicktime'][$atomname]['name'] = $atomname;
$info['quicktime'][$atomname]['size'] = $atomsize;
$info['quicktime'][$atomname]['offset'] = $offset;
if ($offset + $atomsize > $info['avdataend']) {
$info['error'][] = 'Atom at offset ' . $offset . ' claims to go beyond end-of-file (length: ' . $atomsize . ' bytes)';
return false;
}
if ($atomsize == 0) {
// Furthermore, for historical reasons the list of atoms is optionally
// terminated by a 32-bit integer set to 0. If you are writing a program
// to read user data atoms, you should allow for the terminating 0.
break;
}
$atomHierarchy = array();
$info['quicktime'][$atomname] = $this->QuicktimeParseAtom($atomname, $atomsize, $this->fread($atomsize), $offset, $atomHierarchy, $this->ParseAllPossibleAtoms);
$offset += $atomsize;
$atomcounter++;
}
if (!empty($info['avdataend_tmp'])) {
// this value is assigned to a temp value and then erased because
// otherwise any atoms beyond the 'mdat' atom would not get parsed
$info['avdataend'] = $info['avdataend_tmp'];
unset($info['avdataend_tmp']);
}
if (!isset($info['bitrate']) && isset($info['playtime_seconds'])) {
$info['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / $info['playtime_seconds'];
}
if (isset($info['bitrate']) && !isset($info['audio']['bitrate']) && !isset($info['quicktime']['video'])) {
$info['audio']['bitrate'] = $info['bitrate'];
}
if (!empty($info['playtime_seconds']) && !isset($info['video']['frame_rate']) && !empty($info['quicktime']['stts_framecount'])) {
foreach ($info['quicktime']['stts_framecount'] as $key => $samples_count) {
$samples_per_second = $samples_count / $info['playtime_seconds'];
if ($samples_per_second > 240) {
// has to be audio samples
} else {
$info['video']['frame_rate'] = $samples_per_second;
break;
}
}
}
if ($info['audio']['dataformat'] == 'mp4' && empty($info['video']['resolution_x'])) {
$info['fileformat'] = 'mp4';
$info['mime_type'] = 'audio/mp4';
unset($info['video']['dataformat']);
}
if (!$this->ReturnAtomData) {
unset($info['quicktime']['moov']);
}
if (empty($info['audio']['dataformat']) && !empty($info['quicktime']['audio'])) {
$info['audio']['dataformat'] = 'quicktime';
}
if (empty($info['video']['dataformat']) && !empty($info['quicktime']['video'])) {
$info['video']['dataformat'] = 'quicktime';
}
return true;
}示例4: RemoveID3v1
function RemoveID3v1()
{
// File MUST be writeable - CHMOD(646) at least
if (!empty($this->filename) && is_readable($this->filename) && is_writable($this->filename) && is_file($this->filename)) {
$this->setRealFileSize();
if ($this->filesize <= 0 || !getid3_lib::intValueSupported($this->filesize)) {
$this->errors[] = 'Unable to RemoveID3v1(' . $this->filename . ') because filesize (' . $this->filesize . ') is larger than ' . round(PHP_INT_MAX / 1073741824) . 'GB';
return false;
}
if ($fp_source = fopen($this->filename, 'r+b')) {
fseek($fp_source, -128, SEEK_END);
if (fread($fp_source, 3) == 'TAG') {
ftruncate($fp_source, $this->filesize - 128);
} else {
// no ID3v1 tag to begin with - do nothing
}
fclose($fp_source);
return true;
} else {
$this->errors[] = 'Could not fopen(' . $this->filename . ', "r+b")';
}
} else {
$this->errors[] = $this->filename . ' is not writeable';
}
return false;
}示例5: Analyze
public function Analyze()
{
$info =& $this->getid3->info;
if (!getid3_lib::intValueSupported($info['filesize'])) {
$info['warning'][] = 'Unable to check for ID3v1 because file is larger than ' . round(PHP_INT_MAX / 1073741824) . 'GB';
return false;
}
$this->fseek(-256, SEEK_END);
$preid3v1 = $this->fread(128);
$id3v1tag = $this->fread(128);
if (substr($id3v1tag, 0, 3) == 'TAG') {
$info['avdataend'] = $info['filesize'] - 128;
$ParsedID3v1['title'] = $this->cutfield(substr($id3v1tag, 3, 30));
$ParsedID3v1['artist'] = $this->cutfield(substr($id3v1tag, 33, 30));
$ParsedID3v1['album'] = $this->cutfield(substr($id3v1tag, 63, 30));
$ParsedID3v1['year'] = $this->cutfield(substr($id3v1tag, 93, 4));
$ParsedID3v1['comment'] = substr($id3v1tag, 97, 30);
// can't remove nulls yet, track detection depends on them
$ParsedID3v1['genreid'] = ord(substr($id3v1tag, 127, 1));
// If second-last byte of comment field is null and last byte of comment field is non-null
// then this is ID3v1.1 and the comment field is 28 bytes long and the 30th byte is the track number
if ($id3v1tag[125] === "" && $id3v1tag[126] !== "") {
$ParsedID3v1['track'] = ord(substr($ParsedID3v1['comment'], 29, 1));
$ParsedID3v1['comment'] = substr($ParsedID3v1['comment'], 0, 28);
}
$ParsedID3v1['comment'] = $this->cutfield($ParsedID3v1['comment']);
$ParsedID3v1['genre'] = $this->LookupGenreName($ParsedID3v1['genreid']);
if (!empty($ParsedID3v1['genre'])) {
unset($ParsedID3v1['genreid']);
}
if (isset($ParsedID3v1['genre']) && (empty($ParsedID3v1['genre']) || $ParsedID3v1['genre'] == 'Unknown')) {
unset($ParsedID3v1['genre']);
}
foreach ($ParsedID3v1 as $key => $value) {
$ParsedID3v1['comments'][$key][0] = $value;
}
// ID3v1 data is supposed to be padded with NULL characters, but some taggers pad with spaces
$GoodFormatID3v1tag = $this->GenerateID3v1Tag($ParsedID3v1['title'], $ParsedID3v1['artist'], $ParsedID3v1['album'], $ParsedID3v1['year'], isset($ParsedID3v1['genre']) ? $this->LookupGenreID($ParsedID3v1['genre']) : false, $ParsedID3v1['comment'], !empty($ParsedID3v1['track']) ? $ParsedID3v1['track'] : '');
$ParsedID3v1['padding_valid'] = true;
if ($id3v1tag !== $GoodFormatID3v1tag) {
$ParsedID3v1['padding_valid'] = false;
$info['warning'][] = 'Some ID3v1 fields do not use NULL characters for padding';
}
$ParsedID3v1['tag_offset_end'] = $info['filesize'];
$ParsedID3v1['tag_offset_start'] = $ParsedID3v1['tag_offset_end'] - 128;
$info['id3v1'] = $ParsedID3v1;
}
if (substr($preid3v1, 0, 3) == 'TAG') {
// The way iTunes handles tags is, well, brain-damaged.
// It completely ignores v1 if ID3v2 is present.
// This goes as far as adding a new v1 tag *even if there already is one*
// A suspected double-ID3v1 tag has been detected, but it could be that
// the "TAG" identifier is a legitimate part of an APE or Lyrics3 tag
if (substr($preid3v1, 96, 8) == 'APETAGEX') {
// an APE tag footer was found before the last ID3v1, assume false "TAG" synch
} elseif (substr($preid3v1, 119, 6) == 'LYRICS') {
// a Lyrics3 tag footer was found before the last ID3v1, assume false "TAG" synch
} else {
// APE and Lyrics3 footers not found - assume double ID3v1
$info['warning'][] = 'Duplicate ID3v1 tag detected - this has been known to happen with iTunes';
$info['avdataend'] -= 128;
}
}
return true;
}示例6: Analyze
function Analyze()
{
$info =& $this->getid3->info;
// shortcut
$info['bonk'] = array();
$thisfile_bonk =& $info['bonk'];
$thisfile_bonk['dataoffset'] = $info['avdataoffset'];
$thisfile_bonk['dataend'] = $info['avdataend'];
if (!getid3_lib::intValueSupported($thisfile_bonk['dataend'])) {
$info['warning'][] = 'Unable to parse BONK file from end (v0.6+ preferred method) because PHP filesystem functions only support up to ' . round(PHP_INT_MAX / 1073741824) . 'GB';
} else {
// scan-from-end method, for v0.6 and higher
fseek($this->getid3->fp, $thisfile_bonk['dataend'] - 8, SEEK_SET);
$PossibleBonkTag = fread($this->getid3->fp, 8);
while ($this->BonkIsValidTagName(substr($PossibleBonkTag, 4, 4), true)) {
$BonkTagSize = getid3_lib::LittleEndian2Int(substr($PossibleBonkTag, 0, 4));
fseek($this->getid3->fp, 0 - $BonkTagSize, SEEK_CUR);
$BonkTagOffset = ftell($this->getid3->fp);
$TagHeaderTest = fread($this->getid3->fp, 5);
if ($TagHeaderTest[0] != "" || substr($PossibleBonkTag, 4, 4) != strtolower(substr($PossibleBonkTag, 4, 4))) {
$info['error'][] = 'Expecting "' . getid3_lib::PrintHexBytes("" . strtoupper(substr($PossibleBonkTag, 4, 4))) . '" at offset ' . $BonkTagOffset . ', found "' . getid3_lib::PrintHexBytes($TagHeaderTest) . '"';
return false;
}
$BonkTagName = substr($TagHeaderTest, 1, 4);
$thisfile_bonk[$BonkTagName]['size'] = $BonkTagSize;
$thisfile_bonk[$BonkTagName]['offset'] = $BonkTagOffset;
$this->HandleBonkTags($BonkTagName);
$NextTagEndOffset = $BonkTagOffset - 8;
if ($NextTagEndOffset < $thisfile_bonk['dataoffset']) {
if (empty($info['audio']['encoder'])) {
$info['audio']['encoder'] = 'Extended BONK v0.9+';
}
return true;
}
fseek($this->getid3->fp, $NextTagEndOffset, SEEK_SET);
$PossibleBonkTag = fread($this->getid3->fp, 8);
}
}
// seek-from-beginning method for v0.4 and v0.5
if (empty($thisfile_bonk['BONK'])) {
fseek($this->getid3->fp, $thisfile_bonk['dataoffset'], SEEK_SET);
do {
$TagHeaderTest = fread($this->getid3->fp, 5);
switch ($TagHeaderTest) {
case "" . 'BONK':
if (empty($info['audio']['encoder'])) {
$info['audio']['encoder'] = 'BONK v0.4';
}
break;
case "" . 'INFO':
$info['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'];
$this->HandleBonkTags($BonkTagName);
} while (true);
}
// parse META block for v0.6 - v0.8
if (empty($thisfile_bonk['INFO']) && isset($thisfile_bonk['META']['tags']['info'])) {
fseek($this->getid3->fp, $thisfile_bonk['META']['tags']['info'], SEEK_SET);
$TagHeaderTest = fread($this->getid3->fp, 5);
if ($TagHeaderTest == "" . 'INFO') {
$info['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'];
$this->HandleBonkTags($BonkTagName);
}
}
if (empty($info['audio']['encoder'])) {
$info['audio']['encoder'] = 'Extended BONK v0.9+';
}
if (empty($thisfile_bonk['BONK'])) {
unset($info['bonk']);
}
return true;
}示例7: getAACADTSheaderFilepointer
function getAACADTSheaderFilepointer($MaxFramesToScan = 1000000, $ReturnExtendedInfo = false)
{
$info =& $this->getid3->info;
// based loosely on code from AACfile by Jurgen Faul <jfaulØgmx.de>
// http://jfaul.de/atl or http://j-faul.virtualave.net/atl/atl.html
// http://faac.sourceforge.net/wiki/index.php?page=ADTS // dead link
// http://wiki.multimedia.cx/index.php?title=ADTS
// * ADTS Fixed Header: these don't change from frame to frame
// syncword 12 always: '111111111111'
// ID 1 0: MPEG-4, 1: MPEG-2
// MPEG layer 2 If you send AAC in MPEG-TS, set to 0
// protection_absent 1 0: CRC present; 1: no CRC
// profile 2 0: AAC Main; 1: AAC LC (Low Complexity); 2: AAC SSR (Scalable Sample Rate); 3: AAC LTP (Long Term Prediction)
// sampling_frequency_index 4 15 not allowed
// private_bit 1 usually 0
// channel_configuration 3
// original/copy 1 0: original; 1: copy
// home 1 usually 0
// emphasis 2 only if ID == 0 (ie MPEG-4) // not present in some documentation?
// * ADTS Variable Header: these can change from frame to frame
// copyright_identification_bit 1
// copyright_identification_start 1
// aac_frame_length 13 length of the frame including header (in bytes)
// adts_buffer_fullness 11 0x7FF indicates VBR
// no_raw_data_blocks_in_frame 2
// * ADTS Error check
// crc_check 16 only if protection_absent == 0
$byteoffset = $info['avdataoffset'];
$framenumber = 0;
// Init bit pattern array
static $decbin = array();
// Populate $bindec
for ($i = 0; $i < 256; $i++) {
$decbin[chr($i)] = str_pad(decbin($i), 8, '0', STR_PAD_LEFT);
}
// used to calculate bitrate below
$BitrateCache = array();
while (true) {
// breaks out when end-of-file encountered, or invalid data found,
// or MaxFramesToScan frames have been scanned
if (!getid3_lib::intValueSupported($byteoffset)) {
$info['warning'][] = 'Unable to parse AAC file beyond ' . ftell($this->getid3->fp) . ' (PHP does not support file operations beyond ' . round(PHP_INT_MAX / 1073741824) . 'GB)';
return false;
}
fseek($this->getid3->fp, $byteoffset, SEEK_SET);
// First get substring
$substring = fread($this->getid3->fp, 9);
// header is 7 bytes (or 9 if CRC is present)
$substringlength = strlen($substring);
if ($substringlength != 9) {
$info['error'][] = 'Failed to read 7 bytes at offset ' . (ftell($this->getid3->fp) - $substringlength) . ' (only read ' . $substringlength . ' bytes)';
return false;
}
// this would be easier with 64-bit math, but split it up to allow for 32-bit:
$header1 = getid3_lib::BigEndian2Int(substr($substring, 0, 2));
$header2 = getid3_lib::BigEndian2Int(substr($substring, 2, 4));
$header3 = getid3_lib::BigEndian2Int(substr($substring, 6, 1));
$info['aac']['header']['raw']['syncword'] = ($header1 & 0xfff0) >> 4;
if ($info['aac']['header']['raw']['syncword'] != 0xfff) {
$info['error'][] = 'Synch pattern (0x0FFF) not found at offset ' . (ftell($this->getid3->fp) - $substringlength) . ' (found 0x0' . strtoupper(dechex($info['aac']['header']['raw']['syncword'])) . ' instead)';
//if ($info['fileformat'] == 'aac') {
// return true;
//}
unset($info['aac']);
return false;
}
// Gather info for first frame only - this takes time to do 1000 times!
if ($framenumber == 0) {
$info['aac']['header_type'] = 'ADTS';
$info['fileformat'] = 'aac';
$info['audio']['dataformat'] = 'aac';
$info['aac']['header']['raw']['mpeg_version'] = ($header1 & 0x8) >> 3;
$info['aac']['header']['raw']['mpeg_layer'] = ($header1 & 0x6) >> 1;
$info['aac']['header']['raw']['protection_absent'] = ($header1 & 0x1) >> 0;
$info['aac']['header']['raw']['profile_code'] = ($header2 & 0xc0000000) >> 30;
$info['aac']['header']['raw']['sample_rate_code'] = ($header2 & 0x3c000000) >> 26;
$info['aac']['header']['raw']['private_stream'] = ($header2 & 0x2000000) >> 25;
$info['aac']['header']['raw']['channels_code'] = ($header2 & 0x1c00000) >> 22;
$info['aac']['header']['raw']['original'] = ($header2 & 0x200000) >> 21;
$info['aac']['header']['raw']['home'] = ($header2 & 0x100000) >> 20;
$info['aac']['header']['raw']['copyright_stream'] = ($header2 & 0x80000) >> 19;
$info['aac']['header']['raw']['copyright_start'] = ($header2 & 0x40000) >> 18;
$info['aac']['header']['raw']['frame_length'] = ($header2 & 0x3ffe0) >> 5;
$info['aac']['header']['mpeg_version'] = $info['aac']['header']['raw']['mpeg_version'] ? 2 : 4;
$info['aac']['header']['crc_present'] = $info['aac']['header']['raw']['protection_absent'] ? false : true;
$info['aac']['header']['profile'] = self::AACprofileLookup($info['aac']['header']['raw']['profile_code'], $info['aac']['header']['mpeg_version']);
$info['aac']['header']['sample_frequency'] = self::AACsampleRateLookup($info['aac']['header']['raw']['sample_rate_code']);
$info['aac']['header']['private'] = (bool) $info['aac']['header']['raw']['private_stream'];
$info['aac']['header']['original'] = (bool) $info['aac']['header']['raw']['original'];
$info['aac']['header']['home'] = (bool) $info['aac']['header']['raw']['home'];
$info['aac']['header']['channels'] = $info['aac']['header']['raw']['channels_code'] == 7 ? 8 : $info['aac']['header']['raw']['channels_code'];
if ($ReturnExtendedInfo) {
$info['aac'][$framenumber]['copyright_id_bit'] = (bool) $info['aac']['header']['raw']['copyright_stream'];
$info['aac'][$framenumber]['copyright_id_start'] = (bool) $info['aac']['header']['raw']['copyright_start'];
}
if ($info['aac']['header']['raw']['mpeg_layer'] != 0) {
$info['warning'][] = 'Layer error - expected "0", found "' . $info['aac']['header']['raw']['mpeg_layer'] . '" instead';
}
if ($info['aac']['header']['sample_frequency'] == 0) {
$info['error'][] = 'Corrupt AAC file: sample_frequency == zero';
//.........這裏部分代碼省略.........
示例8: analyze
function analyze($filename)
{
try {
if (!empty($this->startup_error)) {
return $this->error($this->startup_error);
}
if (!empty($this->startup_warning)) {
$this->warning($this->startup_warning);
}
// init result array and set parameters
$this->info = array();
$this->info['GETID3_VERSION'] = GETID3_VERSION;
// Check encoding/iconv support
if (!function_exists('iconv') && !in_array($this->encoding, array('ISO-8859-1', 'UTF-8', 'UTF-16LE', 'UTF-16BE', 'UTF-16'))) {
$errormessage = 'iconv() support is needed for encodings other than ISO-8859-1, UTF-8, UTF-16LE, UTF16-BE, UTF-16. ';
if (GETID3_OS_ISWINDOWS) {
$errormessage .= 'PHP does not have iconv() support. Please enable php_iconv.dll in php.ini, and copy iconv.dll from c:/php/dlls to c:/windows/system32';
} else {
$errormessage .= 'PHP is not compiled with iconv() support. Please recompile with the --with-iconv switch';
}
return $this->error($errormessage);
}
// remote files not supported
if (preg_match('/^(ht|f)tp:\\/\\//', $filename)) {
return $this->error('Remote files are not supported in this version of getID3() - please copy the file locally first');
}
$filename = str_replace('/', DIRECTORY_SEPARATOR, $filename);
$filename = preg_replace('#(.+)' . preg_quote(DIRECTORY_SEPARATOR) . '{2,}#U', '\\1' . DIRECTORY_SEPARATOR, $filename);
// open local file
if (file_exists($filename) && is_file($filename)) {
ob_start();
if ($fp = fopen($filename, 'rb')) {
// great
ob_end_clean();
} else {
$fopen_error = ob_get_contents();
ob_end_clean();
return $this->error('Could not open file "' . $filename . '" (fopen says: ' . $fopen_error . ')');
}
} else {
return $this->error('Could not open "' . $filename . '" (does not exist, or is not a file)');
}
// set parameters
// $this->info['filesize'] = filesize($filename);
$this->info['filesize'] = sprintf("%u", filesize($filename));
// option_max_2gb_check
if ($this->option_max_2gb_check) {
// PHP (32-bit all, and 64-bit Windows) doesn't support integers larger than 2^31 (~2GB)
// filesize() simply returns (filesize % (pow(2, 32)), no matter the actual filesize
// ftell() returns 0 if seeking to the end is beyond the range of unsigned integer
$fseek = fseek($fp, 0, SEEK_END);
if ($fseek < 0 || $this->info['filesize'] != 0 && ftell($fp) == 0 || $this->info['filesize'] < 0 || ftell($fp) < 0) {
$real_filesize = false;
if (GETID3_OS_ISWINDOWS) {
$commandline = 'dir /-C "' . str_replace('/', DIRECTORY_SEPARATOR, $filename) . '"';
$dir_output = `{$commandline}`;
if (preg_match('#1 File\\(s\\)[ ]+([0-9]+) bytes#i', $dir_output, $matches)) {
$real_filesize = (double) $matches[1];
}
} else {
$commandline = 'ls -o -g -G --time-style=long-iso ' . escapeshellarg($filename);
$dir_output = `{$commandline}`;
if (preg_match('#([0-9]+) ([0-9]{4}-[0-9]{2}\\-[0-9]{2} [0-9]{2}:[0-9]{2}) ' . str_replace('#', '\\#', preg_quote($filename)) . '$#', $dir_output, $matches)) {
$real_filesize = (double) $matches[1];
}
}
if ($real_filesize === false) {
unset($this->info['filesize']);
fclose($fp);
return $this->error('Unable to determine actual filesize. File is most likely larger than ' . round(PHP_INT_MAX / 1073741824) . 'GB and is not supported by PHP.');
} elseif (getid3_lib::intValueSupported($real_filesize)) {
unset($this->info['filesize']);
fclose($fp);
return $this->error('PHP seems to think the file is larger than ' . round(PHP_INT_MAX / 1073741824) . 'GB, but filesystem reports it as ' . number_format($real_filesize, 3) . 'GB, please report to info@getid3.org');
}
$this->info['filesize'] = $real_filesize;
$this->error('File is larger than ' . round(PHP_INT_MAX / 1073741824) . 'GB (filesystem reports it as ' . number_format($real_filesize, 3) . 'GB) and is not properly supported by PHP.');
}
}
// set more parameters
$this->info['avdataoffset'] = 0;
$this->info['avdataend'] = $this->info['filesize'];
$this->info['fileformat'] = '';
// filled in later
$this->info['audio']['dataformat'] = '';
// filled in later, unset if not used
$this->info['video']['dataformat'] = '';
// filled in later, unset if not used
$this->info['tags'] = array();
// filled in later, unset if not used
$this->info['error'] = array();
// filled in later, unset if not used
$this->info['warning'] = array();
// filled in later, unset if not used
$this->info['comments'] = array();
// filled in later, unset if not used
$this->info['encoding'] = $this->encoding;
// required by id3v2 and iso modules - can be unset at the end if desired
// set redundant parameters - might be needed in some include file
$this->info['filename'] = basename($filename);
//.........這裏部分代碼省略.........
示例9: Analyze
public function Analyze()
{
$info =& $this->getid3->info;
if (!getid3_lib::intValueSupported($info['filesize'])) {
$info['warning'][] = 'Unable to check for ID3v1 because file is larger than ' . round(PHP_INT_MAX / 1073741824) . 'GB';
return false;
}
$this->fseek(-256, SEEK_END);
$preid3v1 = $this->fread(128);
$id3v1tag = $this->fread(128);
if (substr($id3v1tag, 0, 3) == 'TAG') {
$info['avdataend'] = $info['filesize'] - 128;
$ParsedID3v1['title'] = $this->cutfield(substr($id3v1tag, 3, 30));
$ParsedID3v1['artist'] = $this->cutfield(substr($id3v1tag, 33, 30));
$ParsedID3v1['album'] = $this->cutfield(substr($id3v1tag, 63, 30));
$ParsedID3v1['year'] = $this->cutfield(substr($id3v1tag, 93, 4));
$ParsedID3v1['comment'] = substr($id3v1tag, 97, 30);
// can't remove nulls yet, track detection depends on them
$ParsedID3v1['genreid'] = ord(substr($id3v1tag, 127, 1));
// If second-last byte of comment field is null and last byte of comment field is non-null
// then this is ID3v1.1 and the comment field is 28 bytes long and the 30th byte is the track number
if ($id3v1tag[125] === "" && $id3v1tag[126] !== "") {
$ParsedID3v1['track'] = ord(substr($ParsedID3v1['comment'], 29, 1));
$ParsedID3v1['comment'] = substr($ParsedID3v1['comment'], 0, 28);
}
$ParsedID3v1['comment'] = $this->cutfield($ParsedID3v1['comment']);
$ParsedID3v1['genre'] = $this->LookupGenreName($ParsedID3v1['genreid']);
if (!empty($ParsedID3v1['genre'])) {
unset($ParsedID3v1['genreid']);
}
if (isset($ParsedID3v1['genre']) && (empty($ParsedID3v1['genre']) || $ParsedID3v1['genre'] == 'Unknown')) {
unset($ParsedID3v1['genre']);
}
foreach ($ParsedID3v1 as $key => $value) {
$ParsedID3v1['comments'][$key][0] = $value;
}
// ID3v1 encoding detection hack START
// ID3v1 is defined as always using ISO-8859-1 encoding, but it is not uncommon to find files tagged with ID3v1 using Windows-1251 or other character sets
// Since ID3v1 has no concept of character sets there is no certain way to know we have the correct non-ISO-8859-1 character set, but we can guess
$ID3v1encoding = 'ISO-8859-1';
foreach ($ParsedID3v1['comments'] as $tag_key => $valuearray) {
foreach ($valuearray as $key => $value) {
if (preg_match('#^[\\x00-\\x40\\xA8\\B8\\x80-\\xFF]+$#', $value)) {
foreach (array('Windows-1251', 'KOI8-R') as $id3v1_bad_encoding) {
if (function_exists('mb_convert_encoding') && @mb_convert_encoding($value, $id3v1_bad_encoding, $id3v1_bad_encoding) === $value) {
$ID3v1encoding = $id3v1_bad_encoding;
break 3;
} elseif (function_exists('iconv') && @iconv($id3v1_bad_encoding, $id3v1_bad_encoding, $value) === $value) {
$ID3v1encoding = $id3v1_bad_encoding;
break 3;
}
}
}
}
}
// ID3v1 encoding detection hack END
// ID3v1 data is supposed to be padded with NULL characters, but some taggers pad with spaces
$GoodFormatID3v1tag = $this->GenerateID3v1Tag($ParsedID3v1['title'], $ParsedID3v1['artist'], $ParsedID3v1['album'], $ParsedID3v1['year'], isset($ParsedID3v1['genre']) ? $this->LookupGenreID($ParsedID3v1['genre']) : false, $ParsedID3v1['comment'], !empty($ParsedID3v1['track']) ? $ParsedID3v1['track'] : '');
$ParsedID3v1['padding_valid'] = true;
if ($id3v1tag !== $GoodFormatID3v1tag) {
$ParsedID3v1['padding_valid'] = false;
$info['warning'][] = 'Some ID3v1 fields do not use NULL characters for padding';
}
$ParsedID3v1['tag_offset_end'] = $info['filesize'];
$ParsedID3v1['tag_offset_start'] = $ParsedID3v1['tag_offset_end'] - 128;
$info['id3v1'] = $ParsedID3v1;
$info['id3v1']['encoding'] = $ID3v1encoding;
}
if (substr($preid3v1, 0, 3) == 'TAG') {
// The way iTunes handles tags is, well, brain-damaged.
// It completely ignores v1 if ID3v2 is present.
// This goes as far as adding a new v1 tag *even if there already is one*
// A suspected double-ID3v1 tag has been detected, but it could be that
// the "TAG" identifier is a legitimate part of an APE or Lyrics3 tag
if (substr($preid3v1, 96, 8) == 'APETAGEX') {
// an APE tag footer was found before the last ID3v1, assume false "TAG" synch
} elseif (substr($preid3v1, 119, 6) == 'LYRICS') {
// a Lyrics3 tag footer was found before the last ID3v1, assume false "TAG" synch
} else {
// APE and Lyrics3 footers not found - assume double ID3v1
$info['warning'][] = 'Duplicate ID3v1 tag detected - this has been known to happen with iTunes';
$info['avdataend'] -= 128;
}
}
return true;
}示例10: ParseRIFF
function ParseRIFF($startoffset, $maxoffset)
{
$info =& $this->getid3->info;
$maxoffset = min($maxoffset, $info['avdataend']);
$RIFFchunk = false;
$FoundAllChunksWeNeed = false;
if ($startoffset < 0 || !getid3_lib::intValueSupported($startoffset)) {
$info['warning'][] = 'Unable to ParseRIFF() at ' . $startoffset . ' because beyond ' . round(PHP_INT_MAX / 1073741824) . 'GB limit of PHP filesystem functions';
return false;
}
$max_usable_offset = min(PHP_INT_MAX - 1024, $maxoffset);
if ($maxoffset > $max_usable_offset) {
$info['warning'][] = 'ParseRIFF() may return incomplete data for chunk starting at ' . $startoffset . ' because beyond it extends to ' . $maxoffset . ', which is beyond the ' . round(PHP_INT_MAX / 1073741824) . 'GB limit of PHP filesystem functions';
}
fseek($this->getid3->fp, $startoffset, SEEK_SET);
while (ftell($this->getid3->fp) < $max_usable_offset) {
$chunknamesize = fread($this->getid3->fp, 8);
$chunkname = substr($chunknamesize, 0, 4);
$chunksize = $this->EitherEndian2Int(substr($chunknamesize, 4, 4));
if (strlen($chunkname) < 4) {
$info['error'][] = 'Expecting chunk name at offset ' . (ftell($this->getid3->fp) - 4) . ' but found nothing. Aborting RIFF parsing.';
break;
}
if ($chunksize == 0) {
if ($chunkname == 'JUNK') {
// we'll allow zero-size JUNK frames
} else {
$info['warning'][] = 'Chunk size at offset ' . (ftell($this->getid3->fp) - 4) . ' is zero. Aborting RIFF parsing.';
break;
}
}
if ($chunksize % 2 != 0) {
// all structures are packed on word boundaries
$chunksize++;
}
switch ($chunkname) {
case 'LIST':
$listname = fread($this->getid3->fp, 4);
if (preg_match('#^(movi|rec )$#i', $listname)) {
$RIFFchunk[$listname]['offset'] = ftell($this->getid3->fp) - 4;
$RIFFchunk[$listname]['size'] = $chunksize;
if ($FoundAllChunksWeNeed) {
// skip over
} else {
$WhereWeWere = ftell($this->getid3->fp);
$AudioChunkHeader = fread($this->getid3->fp, 12);
$AudioChunkStreamNum = substr($AudioChunkHeader, 0, 2);
$AudioChunkStreamType = substr($AudioChunkHeader, 2, 2);
$AudioChunkSize = getid3_lib::LittleEndian2Int(substr($AudioChunkHeader, 4, 4));
if ($AudioChunkStreamType == 'wb') {
$FirstFourBytes = substr($AudioChunkHeader, 8, 4);
if (preg_match('/^\\xFF[\\xE2-\\xE7\\xF2-\\xF7\\xFA-\\xFF][\\x00-\\xEB]/s', $FirstFourBytes)) {
// MP3
if (getid3_mp3::MPEGaudioHeaderBytesValid($FirstFourBytes)) {
$getid3_temp = new getID3();
$getid3_temp->openfile($this->getid3->filename);
$getid3_temp->info['avdataoffset'] = ftell($this->getid3->fp) - 4;
$getid3_temp->info['avdataend'] = ftell($this->getid3->fp) + $AudioChunkSize;
$getid3_mp3 = new getid3_mp3($getid3_temp);
$getid3_mp3->getOnlyMPEGaudioInfo($getid3_temp->info['avdataoffset'], false);
if (isset($getid3_temp->info['mpeg']['audio'])) {
$info['mpeg']['audio'] = $getid3_temp->info['mpeg']['audio'];
$info['audio'] = $getid3_temp->info['audio'];
$info['audio']['dataformat'] = 'mp' . $info['mpeg']['audio']['layer'];
$info['audio']['sample_rate'] = $info['mpeg']['audio']['sample_rate'];
$info['audio']['channels'] = $info['mpeg']['audio']['channels'];
$info['audio']['bitrate'] = $info['mpeg']['audio']['bitrate'];
$info['audio']['bitrate_mode'] = strtolower($info['mpeg']['audio']['bitrate_mode']);
//$info['bitrate'] = $info['audio']['bitrate'];
}
unset($getid3_temp, $getid3_mp3);
}
} elseif (preg_match('/^\\x0B\\x77/s', $FirstFourBytes)) {
// AC3
if (getid3_lib::IncludeDependency(GETID3_INCLUDEPATH . 'module.audio.ac3.php', __FILE__, false)) {
$getid3_temp = new getID3();
$getid3_temp->openfile($this->getid3->filename);
$getid3_temp->info['avdataoffset'] = ftell($this->getid3->fp) - 4;
$getid3_temp->info['avdataend'] = ftell($this->getid3->fp) + $AudioChunkSize;
$getid3_ac3 = new getid3_ac3($getid3_temp);
$getid3_ac3->Analyze();
if (empty($getid3_temp->info['error'])) {
$info['audio'] = $getid3_temp->info['audio'];
$info['ac3'] = $getid3_temp->info['ac3'];
if (!empty($getid3_temp->info['warning'])) {
foreach ($getid3_temp->info['warning'] as $key => $value) {
$info['warning'][] = $value;
}
}
}
unset($getid3_temp, $getid3_ac3);
}
}
}
$FoundAllChunksWeNeed = true;
fseek($this->getid3->fp, $WhereWeWere, SEEK_SET);
}
fseek($this->getid3->fp, $chunksize - 4, SEEK_CUR);
//} elseif (preg_match('#^[0-9]{2}(wb|pc|dc|db)$#i', $listname)) {
//
//.........這裏部分代碼省略.........
示例11: RemoveID3v2
public function RemoveID3v2()
{
// File MUST be writeable - CHMOD(646) at least. It's best if the
// directory is also writeable, because that method is both faster and less susceptible to errors.
if (is_writeable(dirname($this->filename))) {
// preferred method - only one copying operation, minimal chance of corrupting
// original file if script is interrupted, but required directory to be writeable
if (is_readable($this->filename) && is_file($this->filename) && ($fp_source = fopen($this->filename, 'rb'))) {
// Initialize getID3 engine
$getID3 = new getID3();
$OldThisFileInfo = $getID3->analyze($this->filename);
if (!getid3_lib::intValueSupported($OldThisFileInfo['filesize'])) {
$this->errors[] = 'Unable to remove ID3v2 because file is larger than ' . round(PHP_INT_MAX / 1073741824) . 'GB';
fclose($fp_source);
return false;
}
rewind($fp_source);
if ($OldThisFileInfo['avdataoffset'] !== false) {
fseek($fp_source, $OldThisFileInfo['avdataoffset']);
}
if (is_writable($this->filename) && is_file($this->filename) && ($fp_temp = fopen($this->filename . 'getid3tmp', 'w+b'))) {
while ($buffer = fread($fp_source, $this->fread_buffer_size)) {
fwrite($fp_temp, $buffer, strlen($buffer));
}
fclose($fp_temp);
} else {
$this->errors[] = 'Could not fopen("' . $this->filename . 'getid3tmp", "w+b")';
}
fclose($fp_source);
} else {
$this->errors[] = 'Could not fopen("' . $this->filename . '", "rb")';
}
if (file_exists($this->filename)) {
unlink($this->filename);
}
rename($this->filename . 'getid3tmp', $this->filename);
} elseif (is_writable($this->filename)) {
// less desirable alternate method - double-copies the file, overwrites original file
// and could corrupt source file if the script is interrupted or an error occurs.
if (is_readable($this->filename) && is_file($this->filename) && ($fp_source = fopen($this->filename, 'rb'))) {
// Initialize getID3 engine
$getID3 = new getID3();
$OldThisFileInfo = $getID3->analyze($this->filename);
if (!getid3_lib::intValueSupported($OldThisFileInfo['filesize'])) {
$this->errors[] = 'Unable to remove ID3v2 because file is larger than ' . round(PHP_INT_MAX / 1073741824) . 'GB';
fclose($fp_source);
return false;
}
rewind($fp_source);
if ($OldThisFileInfo['avdataoffset'] !== false) {
fseek($fp_source, $OldThisFileInfo['avdataoffset']);
}
if ($fp_temp = tmpfile()) {
while ($buffer = fread($fp_source, $this->fread_buffer_size)) {
fwrite($fp_temp, $buffer, strlen($buffer));
}
fclose($fp_source);
if (is_writable($this->filename) && is_file($this->filename) && ($fp_source = fopen($this->filename, 'wb'))) {
rewind($fp_temp);
while ($buffer = fread($fp_temp, $this->fread_buffer_size)) {
fwrite($fp_source, $buffer, strlen($buffer));
}
fseek($fp_temp, -128, SEEK_END);
fclose($fp_source);
} else {
$this->errors[] = 'Could not fopen("' . $this->filename . '", "wb")';
}
fclose($fp_temp);
} else {
$this->errors[] = 'Could not create tmpfile()';
}
} else {
$this->errors[] = 'Could not fopen("' . $this->filename . '", "rb")';
}
} else {
$this->errors[] = 'Directory and file both not writeable';
}
if (!empty($this->errors)) {
return false;
}
return true;
}示例12: getid3_quicktime
function getid3_quicktime(&$fd, &$ThisFileInfo, $ReturnAtomData = true, $ParseAllPossibleAtoms = false)
{
$ThisFileInfo['fileformat'] = 'quicktime';
$ThisFileInfo['quicktime']['hinting'] = false;
$ThisFileInfo['quicktime']['controller'] = 'standard';
// may be overridden if 'ctyp' atom is present
fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET);
$offset = 0;
$atomcounter = 0;
while ($offset < $ThisFileInfo['avdataend']) {
if (!getid3_lib::intValueSupported($offset)) {
$ThisFileInfo['error'][] = 'Unable to parse atom at offset ' . $offset . ' because beyond ' . round(PHP_INT_MAX / 1073741824) . 'GB limit of PHP filesystem functions';
break;
}
fseek($fd, $offset, SEEK_SET);
$AtomHeader = fread($fd, 8);
$atomsize = getid3_lib::BigEndian2Int(substr($AtomHeader, 0, 4));
$atomname = substr($AtomHeader, 4, 4);
// 64-bit MOV patch by jlegateØktnc*com
if ($atomsize == 1) {
$atomsize = getid3_lib::BigEndian2Int(fread($fd, 8));
}
$ThisFileInfo['quicktime'][$atomname]['name'] = $atomname;
$ThisFileInfo['quicktime'][$atomname]['size'] = $atomsize;
$ThisFileInfo['quicktime'][$atomname]['offset'] = $offset;
if ($offset + $atomsize > $ThisFileInfo['avdataend']) {
$ThisFileInfo['error'][] = 'Atom at offset ' . $offset . ' claims to go beyond end-of-file (length: ' . $atomsize . ' bytes)';
return false;
}
if ($atomsize == 0) {
// Furthermore, for historical reasons the list of atoms is optionally
// terminated by a 32-bit integer set to 0. If you are writing a program
// to read user data atoms, you should allow for the terminating 0.
break;
}
switch ($atomname) {
case 'mdat':
// Media DATa atom
// 'mdat' contains the actual data for the audio/video
if ($atomsize > 8 && (!isset($ThisFileInfo['avdataend_tmp']) || $ThisFileInfo['quicktime'][$atomname]['size'] > $ThisFileInfo['avdataend_tmp'] - $ThisFileInfo['avdataoffset'])) {
$ThisFileInfo['avdataoffset'] = $ThisFileInfo['quicktime'][$atomname]['offset'] + 8;
$OldAVDataEnd = $ThisFileInfo['avdataend'];
$ThisFileInfo['avdataend'] = $ThisFileInfo['quicktime'][$atomname]['offset'] + $ThisFileInfo['quicktime'][$atomname]['size'];
if (getid3_mp3::MPEGaudioHeaderValid(getid3_mp3::MPEGaudioHeaderDecode(fread($fd, 4)))) {
getid3_mp3::getOnlyMPEGaudioInfo($fd, $ThisFileInfo, $ThisFileInfo['avdataoffset'], false);
if (isset($ThisFileInfo['mpeg']['audio'])) {
$ThisFileInfo['audio']['dataformat'] = 'mp3';
$ThisFileInfo['audio']['codec'] = !empty($ThisFileInfo['mpeg']['audio']['encoder']) ? $ThisFileInfo['mpeg']['audio']['encoder'] : (!empty($ThisFileInfo['mpeg']['audio']['codec']) ? $ThisFileInfo['mpeg']['audio']['codec'] : (!empty($ThisFileInfo['mpeg']['audio']['LAME']) ? 'LAME' : 'mp3'));
$ThisFileInfo['audio']['sample_rate'] = $ThisFileInfo['mpeg']['audio']['sample_rate'];
$ThisFileInfo['audio']['channels'] = $ThisFileInfo['mpeg']['audio']['channels'];
$ThisFileInfo['audio']['bitrate'] = $ThisFileInfo['mpeg']['audio']['bitrate'];
$ThisFileInfo['audio']['bitrate_mode'] = strtolower($ThisFileInfo['mpeg']['audio']['bitrate_mode']);
$ThisFileInfo['bitrate'] = $ThisFileInfo['audio']['bitrate'];
}
}
$ThisFileInfo['avdataend'] = $OldAVDataEnd;
unset($OldAVDataEnd);
}
break;
case 'free':
// FREE space atom
// FREE space atom
case 'skip':
// SKIP atom
// SKIP atom
case 'wide':
// 64-bit expansion placeholder atom
// 'free', 'skip' and 'wide' are just padding, contains no useful data at all
break;
default:
$atomHierarchy = array();
$ThisFileInfo['quicktime'][$atomname] = $this->QuicktimeParseAtom($atomname, $atomsize, fread($fd, $atomsize), $ThisFileInfo, $offset, $atomHierarchy, $ParseAllPossibleAtoms);
break;
}
$offset += $atomsize;
$atomcounter++;
}
if (!empty($ThisFileInfo['avdataend_tmp'])) {
// this value is assigned to a temp value and then erased because
// otherwise any atoms beyond the 'mdat' atom would not get parsed
$ThisFileInfo['avdataend'] = $ThisFileInfo['avdataend_tmp'];
unset($ThisFileInfo['avdataend_tmp']);
}
if (!isset($ThisFileInfo['bitrate']) && isset($ThisFileInfo['playtime_seconds'])) {
$ThisFileInfo['bitrate'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) * 8 / $ThisFileInfo['playtime_seconds'];
}
if (isset($ThisFileInfo['bitrate']) && !isset($ThisFileInfo['audio']['bitrate']) && !isset($ThisFileInfo['quicktime']['video'])) {
$ThisFileInfo['audio']['bitrate'] = $ThisFileInfo['bitrate'];
}
if (!empty($ThisFileInfo['playtime_seconds']) && !isset($ThisFileInfo['video']['frame_rate']) && !empty($ThisFileInfo['quicktime']['stts_framecount'])) {
foreach ($ThisFileInfo['quicktime']['stts_framecount'] as $key => $samples_count) {
$samples_per_second = $samples_count / $ThisFileInfo['playtime_seconds'];
if ($samples_per_second > 240) {
// has to be audio samples
} else {
$ThisFileInfo['video']['frame_rate'] = $samples_per_second;
break;
}
}
}
//.........這裏部分代碼省略.........
示例13: ParseRIFF
static function ParseRIFF(&$fd, $startoffset, $maxoffset, &$ThisFileInfo)
{
$maxoffset = min($maxoffset, $ThisFileInfo['avdataend']);
$RIFFchunk = false;
$FoundAllChunksWeNeed = false;
if ($startoffset < 0 || !getid3_lib::intValueSupported($startoffset)) {
$ThisFileInfo['warning'][] = 'Unable to ParseRIFF() at ' . $startoffset . ' because beyond ' . round(PHP_INT_MAX / 1073741824) . 'GB limit of PHP filesystem functions';
return false;
}
$max_usable_offset = min(PHP_INT_MAX - 1024, $maxoffset);
if ($maxoffset > $max_usable_offset) {
$ThisFileInfo['warning'][] = 'ParseRIFF() may return incomplete data for chunk starting at ' . $startoffset . ' because beyond it extends to ' . $maxoffset . ', which is beyond the ' . round(PHP_INT_MAX / 1073741824) . 'GB limit of PHP filesystem functions';
}
fseek($fd, $startoffset, SEEK_SET);
while (ftell($fd) < $max_usable_offset) {
$chunknamesize = fread($fd, 8);
$chunkname = substr($chunknamesize, 0, 4);
$chunksize = getid3_riff::EitherEndian2Int($ThisFileInfo, substr($chunknamesize, 4, 4));
if (strlen($chunkname) < 4) {
$ThisFileInfo['error'][] = 'Expecting chunk name at offset ' . (ftell($fd) - 4) . ' but found nothing. Aborting RIFF parsing.';
break;
}
if ($chunksize == 0) {
if ($chunkname == 'JUNK') {
// we'll allow zero-size JUNK frames
} else {
$ThisFileInfo['warning'][] = 'Chunk size at offset ' . (ftell($fd) - 4) . ' is zero. Aborting RIFF parsing.';
break;
}
}
if ($chunksize % 2 != 0) {
// all structures are packed on word boundaries
$chunksize++;
}
switch ($chunkname) {
case 'LIST':
$listname = fread($fd, 4);
if (preg_match('#^(movi|rec )$#i', $listname)) {
$RIFFchunk[$listname]['offset'] = ftell($fd) - 4;
$RIFFchunk[$listname]['size'] = $chunksize;
if ($FoundAllChunksWeNeed) {
// skip over
} else {
$WhereWeWere = ftell($fd);
$AudioChunkHeader = fread($fd, 12);
$AudioChunkStreamNum = substr($AudioChunkHeader, 0, 2);
$AudioChunkStreamType = substr($AudioChunkHeader, 2, 2);
$AudioChunkSize = getid3_lib::LittleEndian2Int(substr($AudioChunkHeader, 4, 4));
if ($AudioChunkStreamType == 'wb') {
$FirstFourBytes = substr($AudioChunkHeader, 8, 4);
if (preg_match('/^\\xFF[\\xE2-\\xE7\\xF2-\\xF7\\xFA-\\xFF][\\x00-\\xEB]/s', $FirstFourBytes)) {
// MP3
if (getid3_mp3::MPEGaudioHeaderBytesValid($FirstFourBytes)) {
$dummy = $ThisFileInfo;
$dummy['avdataoffset'] = ftell($fd) - 4;
$dummy['avdataend'] = ftell($fd) + $AudioChunkSize;
getid3_mp3::getOnlyMPEGaudioInfo($fd, $dummy, $dummy['avdataoffset'], false);
if (isset($dummy['mpeg']['audio'])) {
$ThisFileInfo = $dummy;
$ThisFileInfo['audio']['dataformat'] = 'mp' . $ThisFileInfo['mpeg']['audio']['layer'];
$ThisFileInfo['audio']['sample_rate'] = $ThisFileInfo['mpeg']['audio']['sample_rate'];
$ThisFileInfo['audio']['channels'] = $ThisFileInfo['mpeg']['audio']['channels'];
$ThisFileInfo['audio']['bitrate'] = $ThisFileInfo['mpeg']['audio']['bitrate'];
$ThisFileInfo['bitrate'] = $ThisFileInfo['audio']['bitrate'];
$ThisFileInfo['audio']['bitrate_mode'] = strtolower($ThisFileInfo['mpeg']['audio']['bitrate_mode']);
}
unset($dummy);
}
} elseif (preg_match('/^\\x0B\\x77/s', $FirstFourBytes)) {
// AC3
$GETID3_ERRORARRAY =& $ThisFileInfo['warning'];
if (getid3_lib::IncludeDependency(GETID3_INCLUDEPATH . 'module.audio.ac3.php', __FILE__, false)) {
$dummy = $ThisFileInfo;
$dummy['avdataoffset'] = ftell($fd) - 4;
$dummy['avdataend'] = ftell($fd) + $AudioChunkSize;
$dummy['error'] = array();
$ac3_tag = new getid3_ac3($fd, $dummy);
if (empty($dummy['error'])) {
$ThisFileInfo['audio'] = $dummy['audio'];
$ThisFileInfo['ac3'] = $dummy['ac3'];
$ThisFileInfo['warning'] = $dummy['warning'];
}
unset($ac3_tag);
}
}
}
$FoundAllChunksWeNeed = true;
fseek($fd, $WhereWeWere, SEEK_SET);
}
fseek($fd, $chunksize - 4, SEEK_CUR);
//} elseif (preg_match('#^[0-9]{2}(wb|pc|dc|db)$#i', $listname)) {
//
// // data chunk, ignore
//
} else {
if (!isset($RIFFchunk[$listname])) {
$RIFFchunk[$listname] = array();
}
$LISTchunkParent = $listname;
$LISTchunkMaxOffset = ftell($fd) - 4 + $chunksize;
//.........這裏部分代碼省略.........
示例14: Analyze
public function Analyze()
{
$info =& $this->getid3->info;
// initialize these values to an empty array, otherwise they default to NULL
// and you can't append array values to a NULL value
$info['riff'] = array('raw' => array());
// Shortcuts
$thisfile_riff =& $info['riff'];
$thisfile_riff_raw =& $thisfile_riff['raw'];
$thisfile_audio =& $info['audio'];
$thisfile_video =& $info['video'];
$thisfile_audio_dataformat =& $thisfile_audio['dataformat'];
$thisfile_riff_audio =& $thisfile_riff['audio'];
$thisfile_riff_video =& $thisfile_riff['video'];
$Original['avdataoffset'] = $info['avdataoffset'];
$Original['avdataend'] = $info['avdataend'];
$this->fseek($info['avdataoffset']);
$RIFFheader = $this->fread(12);
$offset = $this->ftell();
$RIFFtype = substr($RIFFheader, 0, 4);
$RIFFsize = substr($RIFFheader, 4, 4);
$RIFFsubtype = substr($RIFFheader, 8, 4);
switch ($RIFFtype) {
case 'FORM':
// AIFF, AIFC
$info['fileformat'] = 'aiff';
$thisfile_riff['header_size'] = $this->EitherEndian2Int($RIFFsize);
$thisfile_riff[$RIFFsubtype] = $this->ParseRIFF($offset, $offset + $thisfile_riff['header_size'] - 4);
break;
case 'RIFF':
// AVI, WAV, etc
// AVI, WAV, etc
case 'SDSS':
// SDSS is identical to RIFF, just renamed. Used by SmartSound QuickTracks (www.smartsound.com)
// SDSS is identical to RIFF, just renamed. Used by SmartSound QuickTracks (www.smartsound.com)
case 'RMP3':
// RMP3 is identical to RIFF, just renamed. Used by [unknown program] when creating RIFF-MP3s
$info['fileformat'] = 'riff';
$thisfile_riff['header_size'] = $this->EitherEndian2Int($RIFFsize);
if ($RIFFsubtype == 'RMP3') {
// RMP3 is identical to WAVE, just renamed. Used by [unknown program] when creating RIFF-MP3s
$RIFFsubtype = 'WAVE';
}
$thisfile_riff[$RIFFsubtype] = $this->ParseRIFF($offset, $offset + $thisfile_riff['header_size'] - 4);
if ($info['avdataend'] - $info['filesize'] == 1) {
// LiteWave appears to incorrectly *not* pad actual output file
// to nearest WORD boundary so may appear to be short by one
// byte, in which case - skip warning
$info['avdataend'] = $info['filesize'];
}
$nextRIFFoffset = $Original['avdataoffset'] + 8 + $thisfile_riff['header_size'];
// 8 = "RIFF" + 32-bit offset
while ($nextRIFFoffset < min($info['filesize'], $info['avdataend'])) {
if (!getid3_lib::intValueSupported($nextRIFFoffset + 1024)) {
$info['error'][] = 'AVI extends beyond ' . round(PHP_INT_MAX / 1073741824) . 'GB and PHP filesystem functions cannot read that far, playtime is probably wrong';
$info['warning'][] = '[avdataend] value may be incorrect, multiple AVIX chunks may be present';
break;
} else {
$this->fseek($nextRIFFoffset);
$nextRIFFheader = $this->fread(12);
if ($nextRIFFoffset == $info['avdataend'] - 1) {
if (substr($nextRIFFheader, 0, 1) == "") {
// RIFF padded to WORD boundary, we're actually already at the end
break;
}
}
$nextRIFFheaderID = substr($nextRIFFheader, 0, 4);
$nextRIFFsize = $this->EitherEndian2Int(substr($nextRIFFheader, 4, 4));
$nextRIFFtype = substr($nextRIFFheader, 8, 4);
$chunkdata = array();
$chunkdata['offset'] = $nextRIFFoffset + 8;
$chunkdata['size'] = $nextRIFFsize;
$nextRIFFoffset = $chunkdata['offset'] + $chunkdata['size'];
switch ($nextRIFFheaderID) {
case 'RIFF':
$info['avdataend'] = $nextRIFFoffset;
if (!getid3_lib::intValueSupported($info['avdataend'])) {
$info['error'][] = 'AVI extends beyond ' . round(PHP_INT_MAX / 1073741824) . 'GB and PHP filesystem functions cannot read that far, playtime is probably wrong';
$info['warning'][] = '[avdataend] value may be incorrect, multiple AVIX chunks may be present';
}
$chunkdata['chunks'] = $this->ParseRIFF($chunkdata['offset'] + 4, $nextRIFFoffset);
if (!isset($thisfile_riff[$nextRIFFtype])) {
$thisfile_riff[$nextRIFFtype] = array();
}
$thisfile_riff[$nextRIFFtype][] = $chunkdata;
break;
case 'JUNK':
// ignore
$thisfile_riff[$nextRIFFheaderID][] = $chunkdata;
break;
case 'IDVX':
$info['divxtag']['comments'] = self::ParseDIVXTAG($this->fread($chunkdata['size']));
break;
default:
if ($info['filesize'] == $chunkdata['offset'] - 8 + 128) {
$DIVXTAG = $nextRIFFheader . $this->fread(128 - 12);
if (substr($DIVXTAG, -7) == 'DIVXTAG') {
// DIVXTAG is supposed to be inside an IDVX chunk in a LIST chunk, but some bad encoders just slap it on the end of a file
$this->warning('Found wrongly-structured DIVXTAG at offset ' . ($this->ftell() - 128) . ', parsing anyway');
$info['divxtag']['comments'] = self::ParseDIVXTAG($DIVXTAG);
//.........這裏部分代碼省略.........
示例15: hash_data
static function hash_data($file, $offset, $end, $algorithm)
{
if (!getid3_lib::intValueSupported($end)) {
return false;
}
switch ($algorithm) {
case 'md5':
$hash_function = 'md5_file';
$unix_call = 'md5sum';
$windows_call = 'md5sum.exe';
$hash_length = 32;
break;
case 'sha1':
$hash_function = 'sha1_file';
$unix_call = 'sha1sum';
$windows_call = 'sha1sum.exe';
$hash_length = 40;
break;
default:
throw new Exception('Invalid algorithm (' . $algorithm . ') in getid3_lib::hash_data()');
break;
}
$size = $end - $offset;
while (true) {
if (GETID3_OS_ISWINDOWS) {
// It seems that sha1sum.exe for Windows only works on physical files, does not accept piped data
// Fall back to create-temp-file method:
if ($algorithm == 'sha1') {
break;
}
$RequiredFiles = array('cygwin1.dll', 'head.exe', 'tail.exe', $windows_call);
foreach ($RequiredFiles as $required_file) {
if (!is_readable(GETID3_HELPERAPPSDIR . $required_file)) {
// helper apps not available - fall back to old method
break;
}
}
$commandline = GETID3_HELPERAPPSDIR . 'head.exe -c ' . $end . ' "' . escapeshellarg(str_replace('/', DIRECTORY_SEPARATOR, $file)) . '" | ';
$commandline .= GETID3_HELPERAPPSDIR . 'tail.exe -c ' . $size . ' | ';
$commandline .= GETID3_HELPERAPPSDIR . $windows_call;
} else {
$commandline = 'head -c' . $end . ' ' . escapeshellarg($file) . ' | ';
$commandline .= 'tail -c' . $size . ' | ';
$commandline .= $unix_call;
}
if (preg_match('#(1|ON)#i', ini_get('safe_mode'))) {
$ThisFileInfo['warning'][] = 'PHP running in Safe Mode - backtick operator not available, using slower non-system-call ' . $algorithm . ' algorithm';
break;
}
return substr(`{$commandline}`, 0, $hash_length);
}
// try to create a temporary file in the system temp directory - invalid dirname should force to system temp dir
if (($data_filename = tempnam(GETID3_TEMP_DIR, 'getID3')) === false) {
// can't find anywhere to create a temp file, just die
return false;
}
// Init
$result = false;
// copy parts of file
ob_start();
if ($fp = fopen($file, 'rb')) {
ob_end_clean();
ob_start();
if ($fp_data = fopen($data_filename, 'wb')) {
fseek($fp, $offset, SEEK_SET);
$byteslefttowrite = $end - $offset;
while ($byteslefttowrite > 0 && ($buffer = fread($fp, GETID3_FREAD_BUFFER_SIZE))) {
$byteswritten = fwrite($fp_data, $buffer, $byteslefttowrite);
$byteslefttowrite -= $byteswritten;
}
fclose($fp_data);
$result = $hash_function($data_filename);
} else {
$errormessage = ob_get_contents();
ob_end_clean();
}
fclose($fp);
} else {
$errormessage = ob_get_contents();
ob_end_clean();
}
unlink($data_filename);
return $result;
}