/**
* @return bool
*/
public function analyze()
{
$info =& $this->getid3->info;
fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
$DSSheader = fread($this->getid3->fp, 1256);
if (!preg_match('#^(\\x02|\\x03)dss#', $DSSheader)) {
$info['error'][] = 'Expecting "[02-03] 64 73 73" at offset ' . $info['avdataoffset'] . ', found "' . Helper::PrintHexBytes(substr($DSSheader, 0, 4)) . '"';
return false;
}
// some structure information taken from http://cpansearch.perl.org/src/RGIBSON/Audio-DSS-0.02/lib/Audio/DSS.pm
// shortcut
$info['dss'] = array();
$thisfile_dss =& $info['dss'];
$info['fileformat'] = 'dss';
$info['audio']['dataformat'] = 'dss';
$info['audio']['bitrate_mode'] = 'cbr';
//$thisfile_dss['encoding'] = 'ISO-8859-1';
$thisfile_dss['version'] = ord(substr($DSSheader, 0, 1));
$thisfile_dss['date_create'] = self::DSSdateStringToUnixDate(substr($DSSheader, 38, 12));
$thisfile_dss['date_complete'] = self::DSSdateStringToUnixDate(substr($DSSheader, 50, 12));
//$thisfile_dss['length'] = intval(substr($DSSheader, 62, 6)); // I thought time was in seconds, it's actually HHMMSS
$thisfile_dss['length'] = intval(substr($DSSheader, 62, 2) * 3600 + substr($DSSheader, 64, 2) * 60 + substr($DSSheader, 66, 2));
$thisfile_dss['priority'] = ord(substr($DSSheader, 793, 1));
$thisfile_dss['comments'] = trim(substr($DSSheader, 798, 100));
//$info['audio']['bits_per_sample'] = ?;
//$info['audio']['sample_rate'] = ?;
$info['audio']['channels'] = 1;
$info['playtime_seconds'] = $thisfile_dss['length'];
$info['audio']['bitrate'] = $info['filesize'] * 8 / $info['playtime_seconds'];
return true;
}
/**
* @return bool
*/
public function analyze()
{
$info =& $this->getid3->info;
$info['fileformat'] = 'rar';
if ($this->option_use_rar_extension === true) {
if (function_exists('rar_open')) {
if ($rp = rar_open($info['filenamepath'])) {
$info['rar']['files'] = array();
$entries = rar_list($rp);
foreach ($entries as $entry) {
$info['rar']['files'] = Helper::array_merge_clobber($info['rar']['files'], Helper::CreateDeepArray($entry->getName(), '/', $entry->getUnpackedSize()));
}
rar_close($rp);
return true;
} else {
$info['error'][] = 'failed to rar_open(' . $info['filename'] . ')';
}
} else {
$info['error'][] = 'RAR support does not appear to be available in this PHP installation';
}
} else {
$info['error'][] = 'PHP-RAR processing has been disabled (set $getid3_rar->option_use_rar_extension=true to enable)';
}
return false;
}
/**
* @return bool
*/
public function analyze()
{
$info =& $this->getid3->info;
fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
$AAheader = fread($this->getid3->fp, 8);
$magic = "W�u6";
if (substr($AAheader, 4, 4) != $magic) {
$info['error'][] = 'Expecting "' . Helper::PrintHexBytes($magic) . '" at offset ' . $info['avdataoffset'] . ', found "' . Helper::PrintHexBytes(substr($AAheader, 4, 4)) . '"';
return false;
}
// shortcut
$info['aa'] = array();
$thisfile_au =& $info['aa'];
$info['fileformat'] = 'aa';
$info['audio']['dataformat'] = 'aa';
$info['error'][] = 'Audible Audiobook (.aa) parsing not enabled in this version of GetId3Core() [' . $this->getid3->version() . ']';
return false;
$info['audio']['bitrate_mode'] = 'cbr';
// is it?
$thisfile_au['encoding'] = 'ISO-8859-1';
$thisfile_au['filesize'] = Helper::BigEndian2Int(substr($AUheader, 0, 4));
if ($thisfile_au['filesize'] > $info['avdataend'] - $info['avdataoffset']) {
$info['warning'][] = 'Possible truncated file - expecting "' . $thisfile_au['filesize'] . '" bytes of data, only found ' . ($info['avdataend'] - $info['avdataoffset']) . ' bytes"';
}
$info['audio']['bits_per_sample'] = 16;
// is it?
$info['audio']['sample_rate'] = $thisfile_au['sample_rate'];
$info['audio']['channels'] = $thisfile_au['channels'];
//$info['playtime_seconds'] = 0;
//$info['audio']['bitrate'] = 0;
return true;
}
/**
* @return bool
*/
public function analyze()
{
$info =& $this->getid3->info;
fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
$EXEheader = fread($this->getid3->fp, 28);
$magic = 'MZ';
if (substr($EXEheader, 0, 2) != $magic) {
$info['error'][] = 'Expecting "' . Helper::PrintHexBytes($magic) . '" at offset ' . $info['avdataoffset'] . ', found "' . Helper::PrintHexBytes(substr($EXEheader, 0, 2)) . '"';
return false;
}
$info['fileformat'] = 'exe';
$info['exe']['mz']['magic'] = 'MZ';
$info['exe']['mz']['raw']['last_page_size'] = Helper::LittleEndian2Int(substr($EXEheader, 2, 2));
$info['exe']['mz']['raw']['page_count'] = Helper::LittleEndian2Int(substr($EXEheader, 4, 2));
$info['exe']['mz']['raw']['relocation_count'] = Helper::LittleEndian2Int(substr($EXEheader, 6, 2));
$info['exe']['mz']['raw']['header_paragraphs'] = Helper::LittleEndian2Int(substr($EXEheader, 8, 2));
$info['exe']['mz']['raw']['min_memory_paragraphs'] = Helper::LittleEndian2Int(substr($EXEheader, 10, 2));
$info['exe']['mz']['raw']['max_memory_paragraphs'] = Helper::LittleEndian2Int(substr($EXEheader, 12, 2));
$info['exe']['mz']['raw']['initial_ss'] = Helper::LittleEndian2Int(substr($EXEheader, 14, 2));
$info['exe']['mz']['raw']['initial_sp'] = Helper::LittleEndian2Int(substr($EXEheader, 16, 2));
$info['exe']['mz']['raw']['checksum'] = Helper::LittleEndian2Int(substr($EXEheader, 18, 2));
$info['exe']['mz']['raw']['cs_ip'] = Helper::LittleEndian2Int(substr($EXEheader, 20, 4));
$info['exe']['mz']['raw']['relocation_table_offset'] = Helper::LittleEndian2Int(substr($EXEheader, 24, 2));
$info['exe']['mz']['raw']['overlay_number'] = Helper::LittleEndian2Int(substr($EXEheader, 26, 2));
$info['exe']['mz']['byte_size'] = ($info['exe']['mz']['raw']['page_count'] - 1) * 512 + $info['exe']['mz']['raw']['last_page_size'];
$info['exe']['mz']['header_size'] = $info['exe']['mz']['raw']['header_paragraphs'] * 16;
$info['exe']['mz']['memory_minimum'] = $info['exe']['mz']['raw']['min_memory_paragraphs'] * 16;
$info['exe']['mz']['memory_recommended'] = $info['exe']['mz']['raw']['max_memory_paragraphs'] * 16;
$info['error'][] = 'EXE parsing not enabled in this version of GetId3Core() [' . $this->getid3->version() . ']';
return false;
}
/**
* @return bool
*/
public function analyze()
{
$info =& $this->getid3->info;
fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
$SZIPHeader = fread($this->getid3->fp, 6);
if (substr($SZIPHeader, 0, 4) != "SZ\n") {
$info['error'][] = 'Expecting "53 5A 0A 04" at offset ' . $info['avdataoffset'] . ', found "' . Helper::PrintHexBytes(substr($SZIPHeader, 0, 4)) . '"';
return false;
}
$info['fileformat'] = 'szip';
$info['szip']['major_version'] = Helper::BigEndian2Int(substr($SZIPHeader, 4, 1));
$info['szip']['minor_version'] = Helper::BigEndian2Int(substr($SZIPHeader, 5, 1));
while (!feof($this->getid3->fp)) {
$NextBlockID = fread($this->getid3->fp, 2);
switch ($NextBlockID) {
case 'SZ':
// Note that szip files can be concatenated, this has the same effect as
// concatenating the files. this also means that global header blocks
// might be present between directory/data blocks.
fseek($this->getid3->fp, 4, SEEK_CUR);
break;
case 'BH':
$BHheaderbytes = Helper::BigEndian2Int(fread($this->getid3->fp, 3));
$BHheaderdata = fread($this->getid3->fp, $BHheaderbytes);
$BHheaderoffset = 0;
while (strpos($BHheaderdata, "", $BHheaderoffset) > 0) {
//filename as \0 terminated string (empty string indicates end)
//owner as \0 terminated string (empty is same as last file)
//group as \0 terminated string (empty is same as last file)
//3 byte filelength in this block
//2 byte access flags
//4 byte creation time (like in unix)
//4 byte modification time (like in unix)
//4 byte access time (like in unix)
$BHdataArray['filename'] = substr($BHheaderdata, $BHheaderoffset, strcspn($BHheaderdata, ""));
$BHheaderoffset += strlen($BHdataArray['filename']) + 1;
$BHdataArray['owner'] = substr($BHheaderdata, $BHheaderoffset, strcspn($BHheaderdata, ""));
$BHheaderoffset += strlen($BHdataArray['owner']) + 1;
$BHdataArray['group'] = substr($BHheaderdata, $BHheaderoffset, strcspn($BHheaderdata, ""));
$BHheaderoffset += strlen($BHdataArray['group']) + 1;
$BHdataArray['filelength'] = Helper::BigEndian2Int(substr($BHheaderdata, $BHheaderoffset, 3));
$BHheaderoffset += 3;
$BHdataArray['access_flags'] = Helper::BigEndian2Int(substr($BHheaderdata, $BHheaderoffset, 2));
$BHheaderoffset += 2;
$BHdataArray['creation_time'] = Helper::BigEndian2Int(substr($BHheaderdata, $BHheaderoffset, 4));
$BHheaderoffset += 4;
$BHdataArray['modification_time'] = Helper::BigEndian2Int(substr($BHheaderdata, $BHheaderoffset, 4));
$BHheaderoffset += 4;
$BHdataArray['access_time'] = Helper::BigEndian2Int(substr($BHheaderdata, $BHheaderoffset, 4));
$BHheaderoffset += 4;
$info['szip']['BH'][] = $BHdataArray;
}
break;
default:
break 2;
}
}
return true;
}
/**
* @return bool
*/
public function ParseBink()
{
$info =& $this->getid3->info;
$info['fileformat'] = 'bink';
$info['video']['dataformat'] = 'bink';
$fileData = 'BIK' . fread($this->getid3->fp, 13);
$info['bink']['data_size'] = Helper::LittleEndian2Int(substr($fileData, 4, 4));
$info['bink']['frame_count'] = Helper::LittleEndian2Int(substr($fileData, 8, 2));
if ($info['avdataend'] - $info['avdataoffset'] != $info['bink']['data_size'] + 8) {
$info['error'][] = 'Probably truncated file: expecting ' . $info['bink']['data_size'] . ' bytes, found ' . ($info['avdataend'] - $info['avdataoffset']);
}
return true;
}
/**
* @return bool
*/
public function analyze()
{
$info =& $this->getid3->info;
fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
$DOCFILEheader = fread($this->getid3->fp, 8);
$magic = "поЮ║╠А";
if (substr($DOCFILEheader, 0, 8) != $magic) {
$info['error'][] = 'Expecting "' . Helper::PrintHexBytes($magic) . '" at ' . $info['avdataoffset'] . ', found ' . Helper::PrintHexBytes(substr($DOCFILEheader, 0, 8)) . ' instead.';
return false;
}
$info['fileformat'] = 'msoffice';
$info['error'][] = 'MS Office (.doc, .xls, etc) parsing not enabled in this version of GetId3Core() [' . $this->getid3->version() . ']';
return false;
}
/**
* @return bool
*/
public function analyze()
{
$info =& $this->getid3->info;
fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
$RKAUHeader = fread($this->getid3->fp, 20);
$magic = 'RKA';
if (substr($RKAUHeader, 0, 3) != $magic) {
$info['error'][] = 'Expecting "' . Helper::PrintHexBytes($magic) . '" at offset ' . $info['avdataoffset'] . ', found "' . Helper::PrintHexBytes(substr($RKAUHeader, 0, 3)) . '"';
return false;
}
$info['fileformat'] = 'rkau';
$info['audio']['dataformat'] = 'rkau';
$info['audio']['bitrate_mode'] = 'vbr';
$info['rkau']['raw']['version'] = Helper::LittleEndian2Int(substr($RKAUHeader, 3, 1));
$info['rkau']['version'] = '1.' . str_pad($info['rkau']['raw']['version'] & 0xf, 2, '0', STR_PAD_LEFT);
if ($info['rkau']['version'] > 1.07 || $info['rkau']['version'] < 1.06) {
$info['error'][] = 'This version of GetId3Core() [' . $this->getid3->version() . '] can only parse RKAU files v1.06 and 1.07 (this file is v' . $info['rkau']['version'] . ')';
unset($info['rkau']);
return false;
}
$info['rkau']['source_bytes'] = Helper::LittleEndian2Int(substr($RKAUHeader, 4, 4));
$info['rkau']['sample_rate'] = Helper::LittleEndian2Int(substr($RKAUHeader, 8, 4));
$info['rkau']['channels'] = Helper::LittleEndian2Int(substr($RKAUHeader, 12, 1));
$info['rkau']['bits_per_sample'] = Helper::LittleEndian2Int(substr($RKAUHeader, 13, 1));
$info['rkau']['raw']['quality'] = Helper::LittleEndian2Int(substr($RKAUHeader, 14, 1));
$this->RKAUqualityLookup($info['rkau']);
$info['rkau']['raw']['flags'] = Helper::LittleEndian2Int(substr($RKAUHeader, 15, 1));
$info['rkau']['flags']['joint_stereo'] = (bool) (!($info['rkau']['raw']['flags'] & 0x1));
$info['rkau']['flags']['streaming'] = (bool) ($info['rkau']['raw']['flags'] & 0x2);
$info['rkau']['flags']['vrq_lossy_mode'] = (bool) ($info['rkau']['raw']['flags'] & 0x4);
if ($info['rkau']['flags']['streaming']) {
$info['avdataoffset'] += 20;
$info['rkau']['compressed_bytes'] = Helper::LittleEndian2Int(substr($RKAUHeader, 16, 4));
} else {
$info['avdataoffset'] += 16;
$info['rkau']['compressed_bytes'] = $info['avdataend'] - $info['avdataoffset'] - 1;
}
// Note: compressed_bytes does not always equal what appears to be the actual number of compressed bytes,
// sometimes it's more, sometimes less. No idea why(?)
$info['audio']['lossless'] = $info['rkau']['lossless'];
$info['audio']['channels'] = $info['rkau']['channels'];
$info['audio']['bits_per_sample'] = $info['rkau']['bits_per_sample'];
$info['audio']['sample_rate'] = $info['rkau']['sample_rate'];
$info['playtime_seconds'] = $info['rkau']['source_bytes'] / ($info['rkau']['sample_rate'] * $info['rkau']['channels'] * ($info['rkau']['bits_per_sample'] / 8));
$info['audio']['bitrate'] = $info['rkau']['compressed_bytes'] * 8 / $info['playtime_seconds'];
return true;
}
/**
* @return bool
*/
public function analyze()
{
$info =& $this->getid3->info;
fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
$AUheader = fread($this->getid3->fp, 8);
$magic = '.snd';
if (substr($AUheader, 0, 4) != $magic) {
$info['error'][] = 'Expecting "' . Helper::PrintHexBytes($magic) . '" (".snd") at offset ' . $info['avdataoffset'] . ', found "' . Helper::PrintHexBytes(substr($AUheader, 0, 4)) . '"';
return false;
}
// shortcut
$info['au'] = array();
$thisfile_au =& $info['au'];
$info['fileformat'] = 'au';
$info['audio']['dataformat'] = 'au';
$info['audio']['bitrate_mode'] = 'cbr';
$thisfile_au['encoding'] = 'ISO-8859-1';
$thisfile_au['header_length'] = Helper::BigEndian2Int(substr($AUheader, 4, 4));
$AUheader .= fread($this->getid3->fp, $thisfile_au['header_length'] - 8);
$info['avdataoffset'] += $thisfile_au['header_length'];
$thisfile_au['data_size'] = Helper::BigEndian2Int(substr($AUheader, 8, 4));
$thisfile_au['data_format_id'] = Helper::BigEndian2Int(substr($AUheader, 12, 4));
$thisfile_au['sample_rate'] = Helper::BigEndian2Int(substr($AUheader, 16, 4));
$thisfile_au['channels'] = Helper::BigEndian2Int(substr($AUheader, 20, 4));
$thisfile_au['comments']['comment'][] = trim(substr($AUheader, 24));
$thisfile_au['data_format'] = $this->AUdataFormatNameLookup($thisfile_au['data_format_id']);
$thisfile_au['used_bits_per_sample'] = $this->AUdataFormatUsedBitsPerSampleLookup($thisfile_au['data_format_id']);
if ($thisfile_au['bits_per_sample'] = $this->AUdataFormatBitsPerSampleLookup($thisfile_au['data_format_id'])) {
$info['audio']['bits_per_sample'] = $thisfile_au['bits_per_sample'];
} else {
unset($thisfile_au['bits_per_sample']);
}
$info['audio']['sample_rate'] = $thisfile_au['sample_rate'];
$info['audio']['channels'] = $thisfile_au['channels'];
if ($info['avdataoffset'] + $thisfile_au['data_size'] > $info['avdataend']) {
$info['warning'][] = 'Possible truncated file - expecting "' . $thisfile_au['data_size'] . '" bytes of audio data, only found ' . ($info['avdataend'] - $info['avdataoffset']) . ' bytes"';
}
$info['playtime_seconds'] = $thisfile_au['data_size'] / ($thisfile_au['sample_rate'] * $thisfile_au['channels'] * ($thisfile_au['used_bits_per_sample'] / 8));
$info['audio']['bitrate'] = $thisfile_au['data_size'] * 8 / $info['playtime_seconds'];
return true;
}
/**
* @return bool
*/
public function analyze()
{
$info =& $this->getid3->info;
fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
$efaxheader = fread($this->getid3->fp, 1024);
$info['efax']['header']['magic'] = substr($efaxheader, 0, 2);
if ($info['efax']['header']['magic'] != "Üþ") {
$info['error'][] = 'Invalid eFax byte order identifier (expecting DC FE, found ' . Helper::PrintHexBytes($info['efax']['header']['magic']) . ') at offset ' . $info['avdataoffset'];
return false;
}
$info['fileformat'] = 'efax';
$info['efax']['header']['filesize'] = Helper::LittleEndian2Int(substr($efaxheader, 2, 4));
if ($info['efax']['header']['filesize'] != $info['filesize']) {
$info['error'][] = 'Probable ' . ($info['efax']['header']['filesize'] > $info['filesize'] ? 'truncated' : 'corrupt') . ' file, expecting ' . $info['efax']['header']['filesize'] . ' bytes, found ' . $info['filesize'] . ' bytes';
}
$info['efax']['header']['software1'] = rtrim(substr($efaxheader, 26, 32), "");
$info['efax']['header']['software2'] = rtrim(substr($efaxheader, 58, 32), "");
$info['efax']['header']['software3'] = rtrim(substr($efaxheader, 90, 32), "");
$info['efax']['header']['pages'] = Helper::LittleEndian2Int(substr($efaxheader, 198, 2));
$info['efax']['header']['data_bytes'] = Helper::LittleEndian2Int(substr($efaxheader, 202, 4));
$info['error'][] = 'eFax parsing not enabled in this version of GetId3Core() [' . $this->getid3->version() . ']';
return false;
return true;
}
/**
* @return type
*/
public function getBit()
{
$result = Helper::BigEndian2Int(substr($this->sps, $this->currentBytes, 1)) >> 7 - $this->currentBits & 0x1;
$this->skipBits(1);
return $result;
}
/**
* @return bool
*/
public function CalculateReplayGain()
{
if (isset($this->info['replay_gain'])) {
if (!isset($this->info['replay_gain']['reference_volume'])) {
$this->info['replay_gain']['reference_volume'] = (double) 89.0;
}
if (isset($this->info['replay_gain']['track']['adjustment'])) {
$this->info['replay_gain']['track']['volume'] = $this->info['replay_gain']['reference_volume'] - $this->info['replay_gain']['track']['adjustment'];
}
if (isset($this->info['replay_gain']['album']['adjustment'])) {
$this->info['replay_gain']['album']['volume'] = $this->info['replay_gain']['reference_volume'] - $this->info['replay_gain']['album']['adjustment'];
}
if (isset($this->info['replay_gain']['track']['peak'])) {
$this->info['replay_gain']['track']['max_noclip_gain'] = 0 - Helper::RGADamplitude2dB($this->info['replay_gain']['track']['peak']);
}
if (isset($this->info['replay_gain']['album']['peak'])) {
$this->info['replay_gain']['album']['max_noclip_gain'] = 0 - Helper::RGADamplitude2dB($this->info['replay_gain']['album']['peak']);
}
}
return true;
}
/**
* @return bool
*/
public function ParseOptimFROGheader45()
{
// for fileformat of v4.50a and higher
$info =& $this->getid3->info;
$RIFFdata = '';
fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
while (!feof($this->getid3->fp) && ftell($this->getid3->fp) < $info['avdataend']) {
$BlockOffset = ftell($this->getid3->fp);
$BlockData = fread($this->getid3->fp, 8);
$offset = 8;
$BlockName = substr($BlockData, 0, 4);
$BlockSize = Helper::LittleEndian2Int(substr($BlockData, 4, 4));
if ($BlockName == 'OFRX') {
$BlockName = 'OFR ';
}
if (!isset($info['ofr'][$BlockName])) {
$info['ofr'][$BlockName] = array();
}
$thisfile_ofr_thisblock =& $info['ofr'][$BlockName];
switch ($BlockName) {
case 'OFR ':
// shortcut
$thisfile_ofr_thisblock['offset'] = $BlockOffset;
$thisfile_ofr_thisblock['size'] = $BlockSize;
$info['audio']['encoder'] = 'OptimFROG 4.50 alpha';
switch ($BlockSize) {
case 12:
case 15:
// good
break;
default:
$info['warning'][] = '"' . $BlockName . '" contains more data than expected (expected 12 or 15 bytes, found ' . $BlockSize . ' bytes)';
break;
}
$BlockData .= fread($this->getid3->fp, $BlockSize);
$thisfile_ofr_thisblock['total_samples'] = Helper::LittleEndian2Int(substr($BlockData, $offset, 6));
$offset += 6;
$thisfile_ofr_thisblock['raw']['sample_type'] = Helper::LittleEndian2Int(substr($BlockData, $offset, 1));
$thisfile_ofr_thisblock['sample_type'] = $this->OptimFROGsampleTypeLookup($thisfile_ofr_thisblock['raw']['sample_type']);
$offset += 1;
$thisfile_ofr_thisblock['channel_config'] = Helper::LittleEndian2Int(substr($BlockData, $offset, 1));
$thisfile_ofr_thisblock['channels'] = $thisfile_ofr_thisblock['channel_config'];
$offset += 1;
$thisfile_ofr_thisblock['sample_rate'] = Helper::LittleEndian2Int(substr($BlockData, $offset, 4));
$offset += 4;
if ($BlockSize > 12) {
// OFR 4.504b or higher
$thisfile_ofr_thisblock['channels'] = $this->OptimFROGchannelConfigNumChannelsLookup($thisfile_ofr_thisblock['channel_config']);
$thisfile_ofr_thisblock['raw']['encoder_id'] = Helper::LittleEndian2Int(substr($BlockData, $offset, 2));
$thisfile_ofr_thisblock['encoder'] = $this->OptimFROGencoderNameLookup($thisfile_ofr_thisblock['raw']['encoder_id']);
$offset += 2;
$thisfile_ofr_thisblock['raw']['compression'] = Helper::LittleEndian2Int(substr($BlockData, $offset, 1));
$thisfile_ofr_thisblock['compression'] = $this->OptimFROGcompressionLookup($thisfile_ofr_thisblock['raw']['compression']);
$thisfile_ofr_thisblock['speedup'] = $this->OptimFROGspeedupLookup($thisfile_ofr_thisblock['raw']['compression']);
$offset += 1;
$info['audio']['encoder'] = 'OptimFROG ' . $thisfile_ofr_thisblock['encoder'];
$info['audio']['encoder_options'] = '--mode ' . $thisfile_ofr_thisblock['compression'];
if (($thisfile_ofr_thisblock['raw']['encoder_id'] & 0xf0) >> 4 == 7) {
// v4.507
if (strtolower(Helper::fileextension($info['filename'])) == 'ofs') {
// OptimFROG DualStream format is lossy, but as of v4.507 there is no way to tell the difference
// between lossless and lossy other than the file extension.
$info['audio']['dataformat'] = 'ofs';
$info['audio']['lossless'] = true;
}
}
}
$info['audio']['channels'] = $thisfile_ofr_thisblock['channels'];
$info['audio']['sample_rate'] = $thisfile_ofr_thisblock['sample_rate'];
$info['audio']['bits_per_sample'] = $this->OptimFROGbitsPerSampleTypeLookup($thisfile_ofr_thisblock['raw']['sample_type']);
break;
case 'COMP':
// unlike other block types, there CAN be multiple COMP blocks
$COMPdata['offset'] = $BlockOffset;
$COMPdata['size'] = $BlockSize;
if ($info['avdataoffset'] == 0) {
$info['avdataoffset'] = $BlockOffset;
}
// Only interested in first 14 bytes (only first 12 needed for v4.50 alpha), not actual audio data
$BlockData .= fread($this->getid3->fp, 14);
fseek($this->getid3->fp, $BlockSize - 14, SEEK_CUR);
$COMPdata['crc_32'] = Helper::LittleEndian2Int(substr($BlockData, $offset, 4));
$offset += 4;
$COMPdata['sample_count'] = Helper::LittleEndian2Int(substr($BlockData, $offset, 4));
$offset += 4;
$COMPdata['raw']['sample_type'] = Helper::LittleEndian2Int(substr($BlockData, $offset, 1));
$COMPdata['sample_type'] = $this->OptimFROGsampleTypeLookup($COMPdata['raw']['sample_type']);
$offset += 1;
$COMPdata['raw']['channel_configuration'] = Helper::LittleEndian2Int(substr($BlockData, $offset, 1));
$COMPdata['channel_configuration'] = $this->OptimFROGchannelConfigurationLookup($COMPdata['raw']['channel_configuration']);
$offset += 1;
$COMPdata['raw']['algorithm_id'] = Helper::LittleEndian2Int(substr($BlockData, $offset, 2));
//$COMPdata['algorithm'] = OptimFROGalgorithmNameLookup($COMPdata['raw']['algorithm_id']);
$offset += 2;
if ($info['ofr']['OFR ']['size'] > 12) {
// OFR 4.504b or higher
$COMPdata['raw']['encoder_id'] = Helper::LittleEndian2Int(substr($BlockData, $offset, 2));
$COMPdata['encoder'] = $this->OptimFROGencoderNameLookup($COMPdata['raw']['encoder_id']);
$offset += 2;
}
if ($COMPdata['crc_32'] == 0x454e4f4e) {
// ASCII value of 'NONE' - placeholder value in v4.50a
$COMPdata['crc_32'] = false;
}
$thisfile_ofr_thisblock[] = $COMPdata;
break;
case 'HEAD':
$thisfile_ofr_thisblock['offset'] = $BlockOffset;
$thisfile_ofr_thisblock['size'] = $BlockSize;
$RIFFdata .= fread($this->getid3->fp, $BlockSize);
break;
case 'TAIL':
$thisfile_ofr_thisblock['offset'] = $BlockOffset;
$thisfile_ofr_thisblock['size'] = $BlockSize;
if ($BlockSize > 0) {
$RIFFdata .= fread($this->getid3->fp, $BlockSize);
}
break;
case 'RECV':
// block contains no useful meta data - simply note and skip
$thisfile_ofr_thisblock['offset'] = $BlockOffset;
$thisfile_ofr_thisblock['size'] = $BlockSize;
fseek($this->getid3->fp, $BlockSize, SEEK_CUR);
break;
case 'APET':
// APEtag v2
$thisfile_ofr_thisblock['offset'] = $BlockOffset;
$thisfile_ofr_thisblock['size'] = $BlockSize;
$info['warning'][] = 'APEtag processing inside OptimFROG not supported in this version (' . $this->getid3->version() . ') of GetId3Core()';
fseek($this->getid3->fp, $BlockSize, SEEK_CUR);
break;
case 'MD5 ':
// APEtag v2
$thisfile_ofr_thisblock['offset'] = $BlockOffset;
$thisfile_ofr_thisblock['size'] = $BlockSize;
if ($BlockSize == 16) {
$thisfile_ofr_thisblock['md5_binary'] = fread($this->getid3->fp, $BlockSize);
$thisfile_ofr_thisblock['md5_string'] = Helper::PrintHexBytes($thisfile_ofr_thisblock['md5_binary'], true, false, false);
$info['md5_data_source'] = $thisfile_ofr_thisblock['md5_string'];
} else {
$info['warning'][] = 'Expecting block size of 16 in "MD5 " chunk, found ' . $BlockSize . ' instead';
fseek($this->getid3->fp, $BlockSize, SEEK_CUR);
}
break;
default:
$thisfile_ofr_thisblock['offset'] = $BlockOffset;
$thisfile_ofr_thisblock['size'] = $BlockSize;
$info['warning'][] = 'Unhandled OptimFROG block type "' . $BlockName . '" at offset ' . $thisfile_ofr_thisblock['offset'];
fseek($this->getid3->fp, $BlockSize, SEEK_CUR);
break;
}
}
if (isset($info['ofr']['TAIL']['offset'])) {
$info['avdataend'] = $info['ofr']['TAIL']['offset'];
}
$info['playtime_seconds'] = (double) $info['ofr']['OFR ']['total_samples'] / ($info['audio']['channels'] * $info['audio']['sample_rate']);
$info['audio']['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / $info['playtime_seconds'];
// move the data chunk after all other chunks (if any)
// so that the RIFF parser doesn't see EOF when trying
// to skip over the data chunk
$RIFFdata = substr($RIFFdata, 0, 36) . substr($RIFFdata, 44) . substr($RIFFdata, 36, 8);
$getid3_temp = new GetId3Core();
$getid3_temp->openfile($this->getid3->filename);
$getid3_temp->info['avdataoffset'] = $info['avdataoffset'];
$getid3_temp->info['avdataend'] = $info['avdataend'];
$getid3_riff = new Riff($getid3_temp);
$getid3_riff->ParseRIFFdata($RIFFdata);
$info['riff'] = $getid3_temp->info['riff'];
unset($getid3_riff, $getid3_temp, $RIFFdata);
return true;
}
/**
* @param type $Header4Bytes
*
* @return bool
*/
public static function MPEGaudioHeaderDecode($Header4Bytes)
{
// AAAA AAAA AAAB BCCD EEEE FFGH IIJJ KLMM
// A - Frame sync (all bits set)
// B - MPEG Audio version ID
// C - Layer description
// D - Protection bit
// E - Bitrate index
// F - Sampling rate frequency index
// G - Padding bit
// H - Private bit
// I - Channel Mode
// J - Mode extension (Only if Joint stereo)
// K - Copyright
// L - Original
// M - Emphasis
if (strlen($Header4Bytes) != 4) {
return false;
}
$MPEGrawHeader['synch'] = (Helper::BigEndian2Int(substr($Header4Bytes, 0, 2)) & 0xffe0) >> 4;
$MPEGrawHeader['version'] = (ord($Header4Bytes[1]) & 0x18) >> 3;
// BB
$MPEGrawHeader['layer'] = (ord($Header4Bytes[1]) & 0x6) >> 1;
// CC
$MPEGrawHeader['protection'] = ord($Header4Bytes[1]) & 0x1;
// D
$MPEGrawHeader['bitrate'] = (ord($Header4Bytes[2]) & 0xf0) >> 4;
// EEEE
$MPEGrawHeader['sample_rate'] = (ord($Header4Bytes[2]) & 0xc) >> 2;
// FF
$MPEGrawHeader['padding'] = (ord($Header4Bytes[2]) & 0x2) >> 1;
// G
$MPEGrawHeader['private'] = ord($Header4Bytes[2]) & 0x1;
// H
$MPEGrawHeader['channelmode'] = (ord($Header4Bytes[3]) & 0xc0) >> 6;
// II
$MPEGrawHeader['modeextension'] = (ord($Header4Bytes[3]) & 0x30) >> 4;
// JJ
$MPEGrawHeader['copyright'] = (ord($Header4Bytes[3]) & 0x8) >> 3;
// K
$MPEGrawHeader['original'] = (ord($Header4Bytes[3]) & 0x4) >> 2;
// L
$MPEGrawHeader['emphasis'] = ord($Header4Bytes[3]) & 0x3;
// MM
return $MPEGrawHeader;
}
/**
* @return bool
*/
public function analyze()
{
$info =& $this->getid3->info;
fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
$FLVdataLength = $info['avdataend'] - $info['avdataoffset'];
$FLVheader = fread($this->getid3->fp, 5);
$info['fileformat'] = 'flv';
$info['flv']['header']['signature'] = substr($FLVheader, 0, 3);
$info['flv']['header']['version'] = Helper::BigEndian2Int(substr($FLVheader, 3, 1));
$TypeFlags = Helper::BigEndian2Int(substr($FLVheader, 4, 1));
$magic = 'FLV';
if ($info['flv']['header']['signature'] != $magic) {
$info['error'][] = 'Expecting "' . Helper::PrintHexBytes($magic) . '" at offset ' . $info['avdataoffset'] . ', found "' . Helper::PrintHexBytes($info['flv']['header']['signature']) . '"';
unset($info['flv']);
unset($info['fileformat']);
return false;
}
$info['flv']['header']['hasAudio'] = (bool) ($TypeFlags & 0x4);
$info['flv']['header']['hasVideo'] = (bool) ($TypeFlags & 0x1);
$FrameSizeDataLength = Helper::BigEndian2Int(fread($this->getid3->fp, 4));
$FLVheaderFrameLength = 9;
if ($FrameSizeDataLength > $FLVheaderFrameLength) {
fseek($this->getid3->fp, $FrameSizeDataLength - $FLVheaderFrameLength, SEEK_CUR);
}
$Duration = 0;
$found_video = false;
$found_audio = false;
$found_meta = false;
$found_valid_meta_playtime = false;
$tagParseCount = 0;
$info['flv']['framecount'] = array('total' => 0, 'audio' => 0, 'video' => 0);
$flv_framecount =& $info['flv']['framecount'];
while (ftell($this->getid3->fp) + 16 < $info['avdataend'] && ($tagParseCount++ <= $this->max_frames || !$found_valid_meta_playtime)) {
$ThisTagHeader = fread($this->getid3->fp, 16);
$PreviousTagLength = Helper::BigEndian2Int(substr($ThisTagHeader, 0, 4));
$TagType = Helper::BigEndian2Int(substr($ThisTagHeader, 4, 1));
$DataLength = Helper::BigEndian2Int(substr($ThisTagHeader, 5, 3));
$Timestamp = Helper::BigEndian2Int(substr($ThisTagHeader, 8, 3));
$LastHeaderByte = Helper::BigEndian2Int(substr($ThisTagHeader, 15, 1));
$NextOffset = ftell($this->getid3->fp) - 1 + $DataLength;
if ($Timestamp > $Duration) {
$Duration = $Timestamp;
}
++$flv_framecount['total'];
switch ($TagType) {
case self::GETID3_FLV_TAG_AUDIO:
$flv_framecount['audio']++;
if (!$found_audio) {
$found_audio = true;
$info['flv']['audio']['audioFormat'] = $LastHeaderByte >> 4 & 0xf;
$info['flv']['audio']['audioRate'] = $LastHeaderByte >> 2 & 0x3;
$info['flv']['audio']['audioSampleSize'] = $LastHeaderByte >> 1 & 0x1;
$info['flv']['audio']['audioType'] = $LastHeaderByte & 0x1;
}
break;
case self::GETID3_FLV_TAG_VIDEO:
$flv_framecount['video']++;
if (!$found_video) {
$found_video = true;
$info['flv']['video']['videoCodec'] = $LastHeaderByte & 0x7;
$FLVvideoHeader = fread($this->getid3->fp, 11);
if ($info['flv']['video']['videoCodec'] == self::GETID3_FLV_VIDEO_H264) {
// this code block contributed by: moysevichØgmail*com
$AVCPacketType = Helper::BigEndian2Int(substr($FLVvideoHeader, 0, 1));
if ($AVCPacketType == AVCSequenceParameterSetReader::H264_AVC_SEQUENCE_HEADER) {
// read AVCDecoderConfigurationRecord
$configurationVersion = Helper::BigEndian2Int(substr($FLVvideoHeader, 4, 1));
$AVCProfileIndication = Helper::BigEndian2Int(substr($FLVvideoHeader, 5, 1));
$profile_compatibility = Helper::BigEndian2Int(substr($FLVvideoHeader, 6, 1));
$lengthSizeMinusOne = Helper::BigEndian2Int(substr($FLVvideoHeader, 7, 1));
$numOfSequenceParameterSets = Helper::BigEndian2Int(substr($FLVvideoHeader, 8, 1));
if (($numOfSequenceParameterSets & 0x1f) != 0) {
// there is at least one SequenceParameterSet
// read size of the first SequenceParameterSet
//$spsSize = GetId3_lib::BigEndian2Int(substr($FLVvideoHeader, 9, 2));
$spsSize = Helper::LittleEndian2Int(substr($FLVvideoHeader, 9, 2));
// read the first SequenceParameterSet
$sps = fread($this->getid3->fp, $spsSize);
if (strlen($sps) == $spsSize) {
// make sure that whole SequenceParameterSet was red
$spsReader = new AVCSequenceParameterSetReader($sps);
$spsReader->readData();
$info['video']['resolution_x'] = $spsReader->getWidth();
$info['video']['resolution_y'] = $spsReader->getHeight();
}
}
}
// end: moysevichØgmail*com
} elseif ($info['flv']['video']['videoCodec'] == self::GETID3_FLV_VIDEO_H263) {
$PictureSizeType = Helper::BigEndian2Int(substr($FLVvideoHeader, 3, 2)) >> 7;
$PictureSizeType = $PictureSizeType & 0x7;
$info['flv']['header']['videoSizeType'] = $PictureSizeType;
switch ($PictureSizeType) {
case 0:
//$PictureSizeEnc = GetId3_lib::BigEndian2Int(substr($FLVvideoHeader, 5, 2));
//$PictureSizeEnc <<= 1;
//$info['video']['resolution_x'] = ($PictureSizeEnc & 0xFF00) >> 8;
//$PictureSizeEnc = GetId3_lib::BigEndian2Int(substr($FLVvideoHeader, 6, 2));
//$PictureSizeEnc <<= 1;
//$info['video']['resolution_y'] = ($PictureSizeEnc & 0xFF00) >> 8;
$PictureSizeEnc['x'] = Helper::BigEndian2Int(substr($FLVvideoHeader, 4, 2));
$PictureSizeEnc['y'] = Helper::BigEndian2Int(substr($FLVvideoHeader, 5, 2));
$PictureSizeEnc['x'] >>= 7;
$PictureSizeEnc['y'] >>= 7;
$info['video']['resolution_x'] = $PictureSizeEnc['x'] & 0xff;
$info['video']['resolution_y'] = $PictureSizeEnc['y'] & 0xff;
break;
case 1:
$PictureSizeEnc['x'] = Helper::BigEndian2Int(substr($FLVvideoHeader, 4, 3));
$PictureSizeEnc['y'] = Helper::BigEndian2Int(substr($FLVvideoHeader, 6, 3));
$PictureSizeEnc['x'] >>= 7;
$PictureSizeEnc['y'] >>= 7;
$info['video']['resolution_x'] = $PictureSizeEnc['x'] & 0xffff;
$info['video']['resolution_y'] = $PictureSizeEnc['y'] & 0xffff;
break;
case 2:
$info['video']['resolution_x'] = 352;
$info['video']['resolution_y'] = 288;
break;
case 3:
$info['video']['resolution_x'] = 176;
$info['video']['resolution_y'] = 144;
break;
case 4:
$info['video']['resolution_x'] = 128;
$info['video']['resolution_y'] = 96;
break;
case 5:
$info['video']['resolution_x'] = 320;
$info['video']['resolution_y'] = 240;
break;
case 6:
$info['video']['resolution_x'] = 160;
$info['video']['resolution_y'] = 120;
break;
default:
$info['video']['resolution_x'] = 0;
$info['video']['resolution_y'] = 0;
break;
}
}
$info['video']['pixel_aspect_ratio'] = $info['video']['resolution_x'] / $info['video']['resolution_y'];
}
break;
// Meta tag
// Meta tag
case self::GETID3_FLV_TAG_META:
if (!$found_meta) {
$found_meta = true;
fseek($this->getid3->fp, -1, SEEK_CUR);
$datachunk = fread($this->getid3->fp, $DataLength);
$AMFstream = new AMFStream($datachunk);
$reader = new AMFReader($AMFstream);
$eventName = $reader->readData();
$info['flv']['meta'][$eventName] = $reader->readData();
unset($reader);
$copykeys = array('framerate' => 'frame_rate', 'width' => 'resolution_x', 'height' => 'resolution_y', 'audiodatarate' => 'bitrate', 'videodatarate' => 'bitrate');
foreach ($copykeys as $sourcekey => $destkey) {
if (isset($info['flv']['meta']['onMetaData'][$sourcekey])) {
switch ($sourcekey) {
case 'width':
case 'height':
$info['video'][$destkey] = intval(round($info['flv']['meta']['onMetaData'][$sourcekey]));
break;
case 'audiodatarate':
$info['audio'][$destkey] = Helper::CastAsInt(round($info['flv']['meta']['onMetaData'][$sourcekey] * 1000));
break;
case 'videodatarate':
case 'frame_rate':
default:
$info['video'][$destkey] = $info['flv']['meta']['onMetaData'][$sourcekey];
break;
}
}
}
if (!empty($info['flv']['meta']['onMetaData']['duration'])) {
$found_valid_meta_playtime = true;
}
}
break;
default:
// noop
break;
}
fseek($this->getid3->fp, $NextOffset, SEEK_SET);
}
$info['playtime_seconds'] = $Duration / 1000;
if ($info['playtime_seconds'] > 0) {
$info['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / $info['playtime_seconds'];
}
if ($info['flv']['header']['hasAudio']) {
$info['audio']['codec'] = $this->FLVaudioFormat($info['flv']['audio']['audioFormat']);
$info['audio']['sample_rate'] = $this->FLVaudioRate($info['flv']['audio']['audioRate']);
$info['audio']['bits_per_sample'] = $this->FLVaudioBitDepth($info['flv']['audio']['audioSampleSize']);
$info['audio']['channels'] = $info['flv']['audio']['audioType'] + 1;
// 0=mono,1=stereo
$info['audio']['lossless'] = $info['flv']['audio']['audioFormat'] ? false : true;
// 0=uncompressed
$info['audio']['dataformat'] = 'flv';
}
if (!empty($info['flv']['header']['hasVideo'])) {
$info['video']['codec'] = $this->FLVvideoCodec($info['flv']['video']['videoCodec']);
$info['video']['dataformat'] = 'flv';
$info['video']['lossless'] = false;
}
// Set information from meta
if (!empty($info['flv']['meta']['onMetaData']['duration'])) {
$info['playtime_seconds'] = $info['flv']['meta']['onMetaData']['duration'];
$info['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / $info['playtime_seconds'];
}
if (isset($info['flv']['meta']['onMetaData']['audiocodecid'])) {
$info['audio']['codec'] = $this->FLVaudioFormat($info['flv']['meta']['onMetaData']['audiocodecid']);
}
if (isset($info['flv']['meta']['onMetaData']['videocodecid'])) {
$info['video']['codec'] = $this->FLVvideoCodec($info['flv']['meta']['onMetaData']['videocodecid']);
}
return true;
}
/**
* @return string
*/
public function GenerateCONTchunk()
{
foreach ($this->tag_data as $key => $value) {
// limit each value to 0xFFFF bytes
$this->tag_data[$key] = substr($value, 0, 65535);
}
$CONTchunk = "";
// object version
$CONTchunk .= Helper::BigEndian2String(!empty($this->tag_data['title']) ? strlen($this->tag_data['title']) : 0, 2);
$CONTchunk .= !empty($this->tag_data['title']) ? strlen($this->tag_data['title']) : '';
$CONTchunk .= Helper::BigEndian2String(!empty($this->tag_data['artist']) ? strlen($this->tag_data['artist']) : 0, 2);
$CONTchunk .= !empty($this->tag_data['artist']) ? strlen($this->tag_data['artist']) : '';
$CONTchunk .= Helper::BigEndian2String(!empty($this->tag_data['copyright']) ? strlen($this->tag_data['copyright']) : 0, 2);
$CONTchunk .= !empty($this->tag_data['copyright']) ? strlen($this->tag_data['copyright']) : '';
$CONTchunk .= Helper::BigEndian2String(!empty($this->tag_data['comment']) ? strlen($this->tag_data['comment']) : 0, 2);
$CONTchunk .= !empty($this->tag_data['comment']) ? strlen($this->tag_data['comment']) : '';
if ($this->paddedlength > strlen($CONTchunk) + 8) {
$CONTchunk .= str_repeat("", $this->paddedlength - strlen($CONTchunk) - 8);
}
$CONTchunk = 'CONT' . Helper::BigEndian2String(strlen($CONTchunk) + 8, 4) . $CONTchunk;
// CONT chunk identifier + chunk length
return $CONTchunk;
}
/**
* @param type $BonkTagName
*/
public function HandleBonkTags($BonkTagName)
{
$info =& $this->getid3->info;
switch ($BonkTagName) {
case 'BONK':
// shortcut
$thisfile_bonk_BONK =& $info['bonk']['BONK'];
$BonkData = "" . 'BONK' . fread($this->getid3->fp, 17);
$thisfile_bonk_BONK['version'] = Helper::LittleEndian2Int(substr($BonkData, 5, 1));
$thisfile_bonk_BONK['number_samples'] = Helper::LittleEndian2Int(substr($BonkData, 6, 4));
$thisfile_bonk_BONK['sample_rate'] = Helper::LittleEndian2Int(substr($BonkData, 10, 4));
$thisfile_bonk_BONK['channels'] = Helper::LittleEndian2Int(substr($BonkData, 14, 1));
$thisfile_bonk_BONK['lossless'] = (bool) Helper::LittleEndian2Int(substr($BonkData, 15, 1));
$thisfile_bonk_BONK['joint_stereo'] = (bool) Helper::LittleEndian2Int(substr($BonkData, 16, 1));
$thisfile_bonk_BONK['number_taps'] = Helper::LittleEndian2Int(substr($BonkData, 17, 2));
$thisfile_bonk_BONK['downsampling_ratio'] = Helper::LittleEndian2Int(substr($BonkData, 19, 1));
$thisfile_bonk_BONK['samples_per_packet'] = Helper::LittleEndian2Int(substr($BonkData, 20, 2));
$info['avdataoffset'] = $thisfile_bonk_BONK['offset'] + 5 + 17;
$info['avdataend'] = $thisfile_bonk_BONK['offset'] + $thisfile_bonk_BONK['size'];
$info['fileformat'] = 'bonk';
$info['audio']['dataformat'] = 'bonk';
$info['audio']['bitrate_mode'] = 'vbr';
// assumed
$info['audio']['channels'] = $thisfile_bonk_BONK['channels'];
$info['audio']['sample_rate'] = $thisfile_bonk_BONK['sample_rate'];
$info['audio']['channelmode'] = $thisfile_bonk_BONK['joint_stereo'] ? 'joint stereo' : 'stereo';
$info['audio']['lossless'] = $thisfile_bonk_BONK['lossless'];
$info['audio']['codec'] = 'bonk';
$info['playtime_seconds'] = $thisfile_bonk_BONK['number_samples'] / ($thisfile_bonk_BONK['sample_rate'] * $thisfile_bonk_BONK['channels']);
if ($info['playtime_seconds'] > 0) {
$info['audio']['bitrate'] = ($info['bonk']['dataend'] - $info['bonk']['dataoffset']) * 8 / $info['playtime_seconds'];
}
break;
case 'INFO':
// shortcut
$thisfile_bonk_INFO =& $info['bonk']['INFO'];
$thisfile_bonk_INFO['version'] = Helper::LittleEndian2Int(fread($this->getid3->fp, 1));
$thisfile_bonk_INFO['entries_count'] = 0;
$NextInfoDataPair = fread($this->getid3->fp, 5);
if (!$this->BonkIsValidTagName(substr($NextInfoDataPair, 1, 4))) {
while (!feof($this->getid3->fp)) {
//$CurrentSeekInfo['offset'] = GetId3_lib::LittleEndian2Int(substr($NextInfoDataPair, 0, 4));
//$CurrentSeekInfo['nextbit'] = GetId3_lib::LittleEndian2Int(substr($NextInfoDataPair, 4, 1));
//$thisfile_bonk_INFO[] = $CurrentSeekInfo;
$NextInfoDataPair = fread($this->getid3->fp, 5);
if ($this->BonkIsValidTagName(substr($NextInfoDataPair, 1, 4))) {
fseek($this->getid3->fp, -5, SEEK_CUR);
break;
}
++$thisfile_bonk_INFO['entries_count'];
}
}
break;
case 'META':
$BonkData = "" . 'META' . fread($this->getid3->fp, $info['bonk']['META']['size'] - 5);
$info['bonk']['META']['version'] = Helper::LittleEndian2Int(substr($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;
$MetaEntryTagOffset = Helper::LittleEndian2Int(substr($BonkData, $offset, 4));
$offset += 4;
$info['bonk']['META']['tags'][$MetaEntryTagName] = $MetaEntryTagOffset;
}
break;
case ' ID3':
$info['audio']['encoder'] = 'Extended BONK v0.9+';
// ID3v2 checking is optional
if (class_exists('Helpers\\GetId3\\Module\\Tag\\Id3v2')) {
$getid3_temp = new GetId3Core();
$getid3_temp->openfile($this->getid3->filename);
$getid3_id3v2 = new Id3v2($getid3_temp);
$getid3_id3v2->StartingOffset = $info['bonk'][' ID3']['offset'] + 2;
$info['bonk'][' ID3']['valid'] = $getid3_id3v2->analyze();
if ($info['bonk'][' ID3']['valid']) {
$info['id3v2'] = $getid3_temp->info['id3v2'];
}
unset($getid3_temp, $getid3_id3v2);
}
break;
default:
$info['warning'][] = 'Unexpected Bonk tag "' . $BonkTagName . '" at offset ' . $info['bonk'][$BonkTagName]['offset'];
break;
}
}
/**
* @param type $items
* @param type $isheader
*
* @return type
*/
public function GenerateAPEtagHeaderFooter(&$items, $isheader = false)
{
$tagdatalength = 0;
foreach ($items as $itemdata) {
$tagdatalength += strlen($itemdata);
}
$APEheader = 'APETAGEX';
$APEheader .= Helper::LittleEndian2String(2000, 4);
$APEheader .= Helper::LittleEndian2String(32 + $tagdatalength, 4);
$APEheader .= Helper::LittleEndian2String(count($items), 4);
$APEheader .= $this->GenerateAPEtagFlags(true, true, $isheader, 0, false);
$APEheader .= str_repeat("", 8);
return $APEheader;
}
public function RemoveID3v1()
{
// File MUST be writeable - CHMOD(646) at least
if (!empty($this->filename) && is_readable($this->filename) && is_writable($this->filename) && is_file($this->filename)) {
$this->setRealFileSize();
if ($this->filesize <= 0 || !Helper::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;
}
/**
* @return bool
*/
public function analyze()
{
$info =& $this->getid3->info;
$info['fileformat'] = 'gif';
$info['video']['dataformat'] = 'gif';
$info['video']['lossless'] = true;
$info['video']['pixel_aspect_ratio'] = (double) 1;
fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
$GIFheader = fread($this->getid3->fp, 13);
$offset = 0;
$info['gif']['header']['raw']['identifier'] = substr($GIFheader, $offset, 3);
$offset += 3;
$magic = 'GIF';
if ($info['gif']['header']['raw']['identifier'] != $magic) {
$info['error'][] = 'Expecting "' . Helper::PrintHexBytes($magic) . '" at offset ' . $info['avdataoffset'] . ', found "' . Helper::PrintHexBytes($info['gif']['header']['raw']['identifier']) . '"';
unset($info['fileformat']);
unset($info['gif']);
return false;
}
$info['gif']['header']['raw']['version'] = substr($GIFheader, $offset, 3);
$offset += 3;
$info['gif']['header']['raw']['width'] = Helper::LittleEndian2Int(substr($GIFheader, $offset, 2));
$offset += 2;
$info['gif']['header']['raw']['height'] = Helper::LittleEndian2Int(substr($GIFheader, $offset, 2));
$offset += 2;
$info['gif']['header']['raw']['flags'] = Helper::LittleEndian2Int(substr($GIFheader, $offset, 1));
$offset += 1;
$info['gif']['header']['raw']['bg_color_index'] = Helper::LittleEndian2Int(substr($GIFheader, $offset, 1));
$offset += 1;
$info['gif']['header']['raw']['aspect_ratio'] = Helper::LittleEndian2Int(substr($GIFheader, $offset, 1));
$offset += 1;
$info['video']['resolution_x'] = $info['gif']['header']['raw']['width'];
$info['video']['resolution_y'] = $info['gif']['header']['raw']['height'];
$info['gif']['version'] = $info['gif']['header']['raw']['version'];
$info['gif']['header']['flags']['global_color_table'] = (bool) ($info['gif']['header']['raw']['flags'] & 0x80);
if ($info['gif']['header']['raw']['flags'] & 0x80) {
// Number of bits per primary color available to the original image, minus 1
$info['gif']['header']['bits_per_pixel'] = 3 * ((($info['gif']['header']['raw']['flags'] & 0x70) >> 4) + 1);
} else {
$info['gif']['header']['bits_per_pixel'] = 0;
}
$info['gif']['header']['flags']['global_color_sorted'] = (bool) ($info['gif']['header']['raw']['flags'] & 0x40);
if ($info['gif']['header']['flags']['global_color_table']) {
// the number of bytes contained in the Global Color Table. To determine that
// actual size of the color table, raise 2 to [the value of the field + 1]
$info['gif']['header']['global_color_size'] = pow(2, ($info['gif']['header']['raw']['flags'] & 0x7) + 1);
$info['video']['bits_per_sample'] = ($info['gif']['header']['raw']['flags'] & 0x7) + 1;
} else {
$info['gif']['header']['global_color_size'] = 0;
}
if ($info['gif']['header']['raw']['aspect_ratio'] != 0) {
// Aspect Ratio = (Pixel Aspect Ratio + 15) / 64
$info['gif']['header']['aspect_ratio'] = ($info['gif']['header']['raw']['aspect_ratio'] + 15) / 64;
}
// if ($info['gif']['header']['flags']['global_color_table']) {
// $GIFcolorTable = fread($this->getid3->fp, 3 * $info['gif']['header']['global_color_size']);
// $offset = 0;
// for ($i = 0; $i < $info['gif']['header']['global_color_size']; $i++) {
// $red = GetId3_lib::LittleEndian2Int(substr($GIFcolorTable, $offset++, 1));
// $green = GetId3_lib::LittleEndian2Int(substr($GIFcolorTable, $offset++, 1));
// $blue = GetId3_lib::LittleEndian2Int(substr($GIFcolorTable, $offset++, 1));
// $info['gif']['global_color_table'][$i] = (($red << 16) | ($green << 8) | ($blue));
// }
// }
//
// // Image Descriptor
// while (!feof($this->getid3->fp)) {
// $NextBlockTest = fread($this->getid3->fp, 1);
// switch ($NextBlockTest) {
//
// case ',': // ',' - Image separator character
//
// $ImageDescriptorData = $NextBlockTest.fread($this->getid3->fp, 9);
// $ImageDescriptor = array();
// $ImageDescriptor['image_left'] = GetId3_lib::LittleEndian2Int(substr($ImageDescriptorData, 1, 2));
// $ImageDescriptor['image_top'] = GetId3_lib::LittleEndian2Int(substr($ImageDescriptorData, 3, 2));
// $ImageDescriptor['image_width'] = GetId3_lib::LittleEndian2Int(substr($ImageDescriptorData, 5, 2));
// $ImageDescriptor['image_height'] = GetId3_lib::LittleEndian2Int(substr($ImageDescriptorData, 7, 2));
// $ImageDescriptor['flags_raw'] = GetId3_lib::LittleEndian2Int(substr($ImageDescriptorData, 9, 1));
// $ImageDescriptor['flags']['use_local_color_map'] = (bool) ($ImageDescriptor['flags_raw'] & 0x80);
// $ImageDescriptor['flags']['image_interlaced'] = (bool) ($ImageDescriptor['flags_raw'] & 0x40);
// $info['gif']['image_descriptor'][] = $ImageDescriptor;
//
// if ($ImageDescriptor['flags']['use_local_color_map']) {
//
// $info['warning'][] = 'This version of GetId3Core() cannot parse local color maps for GIFs';
// return true;
//
// }
//echo 'Start of raster data: '.ftell($this->getid3->fp).'<BR>';
// $RasterData = array();
// $RasterData['code_size'] = GetId3_lib::LittleEndian2Int(fread($this->getid3->fp, 1));
// $RasterData['block_byte_count'] = GetId3_lib::LittleEndian2Int(fread($this->getid3->fp, 1));
// $info['gif']['raster_data'][count($info['gif']['image_descriptor']) - 1] = $RasterData;
//
// $CurrentCodeSize = $RasterData['code_size'] + 1;
// for ($i = 0; $i < pow(2, $RasterData['code_size']); $i++) {
// $DefaultDataLookupTable[$i] = chr($i);
// }
// $DefaultDataLookupTable[pow(2, $RasterData['code_size']) + 0] = ''; // Clear Code
// $DefaultDataLookupTable[pow(2, $RasterData['code_size']) + 1] = ''; // End Of Image Code
//
//
// $NextValue = $this->GetLSBits($CurrentCodeSize);
// echo 'Clear Code: '.$NextValue.'<BR>';
//
// $NextValue = $this->GetLSBits($CurrentCodeSize);
// echo 'First Color: '.$NextValue.'<BR>';
//
// $Prefix = $NextValue;
//$i = 0;
// while ($i++ < 20) {
// $NextValue = $this->GetLSBits($CurrentCodeSize);
// echo $NextValue.'<BR>';
// }
//return true;
// break;
//
// case '!':
// // GIF Extension Block
// $ExtensionBlockData = $NextBlockTest.fread($this->getid3->fp, 2);
// $ExtensionBlock = array();
// $ExtensionBlock['function_code'] = GetId3_lib::LittleEndian2Int(substr($ExtensionBlockData, 1, 1));
// $ExtensionBlock['byte_length'] = GetId3_lib::LittleEndian2Int(substr($ExtensionBlockData, 2, 1));
// $ExtensionBlock['data'] = fread($this->getid3->fp, $ExtensionBlock['byte_length']);
// $info['gif']['extension_blocks'][] = $ExtensionBlock;
// break;
//
// case ';':
// $info['gif']['terminator_offset'] = ftell($this->getid3->fp) - 1;
// // GIF Terminator
// break;
//
// default:
// break;
//
//
// }
// }
return true;
}
/**
* @return bool
*/
public function analyze()
{
$info =& $this->getid3->info;
fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
$LPACheader = fread($this->getid3->fp, 14);
if (substr($LPACheader, 0, 4) != 'LPAC') {
$info['error'][] = 'Expected "LPAC" at offset ' . $info['avdataoffset'] . ', found "' . $StreamMarker . '"';
return false;
}
$info['avdataoffset'] += 14;
$info['fileformat'] = 'lpac';
$info['audio']['dataformat'] = 'lpac';
$info['audio']['lossless'] = true;
$info['audio']['bitrate_mode'] = 'vbr';
$info['lpac']['file_version'] = Helper::BigEndian2Int(substr($LPACheader, 4, 1));
$flags['audio_type'] = Helper::BigEndian2Int(substr($LPACheader, 5, 1));
$info['lpac']['total_samples'] = Helper::BigEndian2Int(substr($LPACheader, 6, 4));
$flags['parameters'] = Helper::BigEndian2Int(substr($LPACheader, 10, 4));
$info['lpac']['flags']['is_wave'] = (bool) ($flags['audio_type'] & 0x40);
$info['lpac']['flags']['stereo'] = (bool) ($flags['audio_type'] & 0x4);
$info['lpac']['flags']['24_bit'] = (bool) ($flags['audio_type'] & 0x2);
$info['lpac']['flags']['16_bit'] = (bool) ($flags['audio_type'] & 0x1);
if ($info['lpac']['flags']['24_bit'] && $info['lpac']['flags']['16_bit']) {
$info['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'] & 0x8000000);
$info['lpac']['block_length'] = pow(2, ($flags['parameters'] & 0x7000000) >> 24) * 256;
$info['lpac']['flags']['adaptive_prediction_order'] = (bool) ($flags['parameters'] & 0x800000);
$info['lpac']['flags']['adaptive_quantization'] = (bool) ($flags['parameters'] & 0x400000);
$info['lpac']['flags']['joint_stereo'] = (bool) ($flags['parameters'] & 0x40000);
$info['lpac']['quantization'] = ($flags['parameters'] & 0x1f00) >> 8;
$info['lpac']['max_prediction_order'] = $flags['parameters'] & 0x3f;
if ($info['lpac']['flags']['fast_compress'] && $info['lpac']['max_prediction_order'] != 3) {
$info['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']) {
$info['warning'][] = 'adaptive_quantization expected to be false in LPAC file stucture v6, actually true';
}
if ($info['lpac']['quantization'] != 20) {
$info['warning'][] = 'Quantization expected to be 20 in LPAC file stucture v6, actually ' . $info['lpac']['flags']['Q'];
}
break;
default:
//$info['warning'][] = 'This version of GetId3Core() ['.$this->getid3->version().'] only supports LPAC file format version 6, this file is version '.$info['lpac']['file_version'].' - please report to info@getid3.org';
break;
}
$getid3_temp = new GetId3Core();
$getid3_temp->openfile($this->getid3->filename);
$getid3_temp->info = $info;
$getid3_riff = new Riff($getid3_temp);
$getid3_riff->analyze();
$info['avdataoffset'] = $getid3_temp->info['avdataoffset'];
$info['riff'] = $getid3_temp->info['riff'];
$info['error'] = $getid3_temp->info['error'];
$info['warning'] = $getid3_temp->info['warning'];
$info['lpac']['comments']['comment'] = $getid3_temp->info['comments'];
$info['audio']['sample_rate'] = $getid3_temp->info['audio']['sample_rate'];
unset($getid3_temp, $getid3_riff);
$info['audio']['channels'] = $info['lpac']['flags']['stereo'] ? 2 : 1;
if ($info['lpac']['flags']['24_bit']) {
$info['audio']['bits_per_sample'] = $info['riff']['audio'][0]['bits_per_sample'];
} elseif ($info['lpac']['flags']['16_bit']) {
$info['audio']['bits_per_sample'] = 16;
} else {
$info['audio']['bits_per_sample'] = 8;
}
if ($info['lpac']['flags']['fast_compress']) {
// fast
$info['audio']['encoder_options'] = '-1';
} else {
switch ($info['lpac']['max_prediction_order']) {
case 20:
// simple
$info['audio']['encoder_options'] = '-2';
break;
case 30:
// medium
$info['audio']['encoder_options'] = '-3';
break;
case 40:
// high
$info['audio']['encoder_options'] = '-4';
break;
case 60:
// extrahigh
$info['audio']['encoder_options'] = '-5';
break;
}
}
$info['playtime_seconds'] = $info['lpac']['total_samples'] / $info['audio']['sample_rate'];
$info['audio']['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / $info['playtime_seconds'];
return true;
}
/**
* @return bool
*/
public function analyze()
{
$info =& $this->getid3->info;
if (!Helper::intValueSupported($info['filesize'])) {
$info['warning'][] = 'Unable to check for ID3v1 because file is larger than ' . round(PHP_INT_MAX / 1073741824) . 'GB';
return false;
}
fseek($this->getid3->fp, -256, SEEK_END);
$preid3v1 = fread($this->getid3->fp, 128);
$id3v1tag = fread($this->getid3->fp, 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;
}
/**
* @return bool
*/
public function analyze()
{
$info =& $this->getid3->info;
// based loosely on code from TMonkey by Jurgen Faul <jfaulØgmx*de>
// http://jfaul.de/atl or http://j-faul.virtualave.net/atl/atl.html
$info['fileformat'] = 'mac';
$info['audio']['dataformat'] = 'mac';
$info['audio']['bitrate_mode'] = 'vbr';
$info['audio']['lossless'] = true;
$info['monkeys_audio']['raw'] = array();
$thisfile_monkeysaudio =& $info['monkeys_audio'];
$thisfile_monkeysaudio_raw =& $thisfile_monkeysaudio['raw'];
fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
$MACheaderData = fread($this->getid3->fp, 74);
$thisfile_monkeysaudio_raw['magic'] = substr($MACheaderData, 0, 4);
$magic = 'MAC ';
if ($thisfile_monkeysaudio_raw['magic'] != $magic) {
$info['error'][] = 'Expecting "' . Helper::PrintHexBytes($magic) . '" at offset ' . $info['avdataoffset'] . ', found "' . Helper::PrintHexBytes($thisfile_monkeysaudio_raw['magic']) . '"';
unset($info['fileformat']);
return false;
}
$thisfile_monkeysaudio_raw['nVersion'] = Helper::LittleEndian2Int(substr($MACheaderData, 4, 2));
// appears to be uint32 in 3.98+
if ($thisfile_monkeysaudio_raw['nVersion'] < 3980) {
$thisfile_monkeysaudio_raw['nCompressionLevel'] = Helper::LittleEndian2Int(substr($MACheaderData, 6, 2));
$thisfile_monkeysaudio_raw['nFormatFlags'] = Helper::LittleEndian2Int(substr($MACheaderData, 8, 2));
$thisfile_monkeysaudio_raw['nChannels'] = Helper::LittleEndian2Int(substr($MACheaderData, 10, 2));
$thisfile_monkeysaudio_raw['nSampleRate'] = Helper::LittleEndian2Int(substr($MACheaderData, 12, 4));
$thisfile_monkeysaudio_raw['nHeaderDataBytes'] = Helper::LittleEndian2Int(substr($MACheaderData, 16, 4));
$thisfile_monkeysaudio_raw['nWAVTerminatingBytes'] = Helper::LittleEndian2Int(substr($MACheaderData, 20, 4));
$thisfile_monkeysaudio_raw['nTotalFrames'] = Helper::LittleEndian2Int(substr($MACheaderData, 24, 4));
$thisfile_monkeysaudio_raw['nFinalFrameSamples'] = Helper::LittleEndian2Int(substr($MACheaderData, 28, 4));
$thisfile_monkeysaudio_raw['nPeakLevel'] = Helper::LittleEndian2Int(substr($MACheaderData, 32, 4));
$thisfile_monkeysaudio_raw['nSeekElements'] = Helper::LittleEndian2Int(substr($MACheaderData, 38, 2));
$offset = 8;
} else {
$offset = 8;
// APE_DESCRIPTOR
$thisfile_monkeysaudio_raw['nDescriptorBytes'] = Helper::LittleEndian2Int(substr($MACheaderData, $offset, 4));
$offset += 4;
$thisfile_monkeysaudio_raw['nHeaderBytes'] = Helper::LittleEndian2Int(substr($MACheaderData, $offset, 4));
$offset += 4;
$thisfile_monkeysaudio_raw['nSeekTableBytes'] = Helper::LittleEndian2Int(substr($MACheaderData, $offset, 4));
$offset += 4;
$thisfile_monkeysaudio_raw['nHeaderDataBytes'] = Helper::LittleEndian2Int(substr($MACheaderData, $offset, 4));
$offset += 4;
$thisfile_monkeysaudio_raw['nAPEFrameDataBytes'] = Helper::LittleEndian2Int(substr($MACheaderData, $offset, 4));
$offset += 4;
$thisfile_monkeysaudio_raw['nAPEFrameDataBytesHigh'] = Helper::LittleEndian2Int(substr($MACheaderData, $offset, 4));
$offset += 4;
$thisfile_monkeysaudio_raw['nTerminatingDataBytes'] = Helper::LittleEndian2Int(substr($MACheaderData, $offset, 4));
$offset += 4;
$thisfile_monkeysaudio_raw['cFileMD5'] = substr($MACheaderData, $offset, 16);
$offset += 16;
// APE_HEADER
$thisfile_monkeysaudio_raw['nCompressionLevel'] = Helper::LittleEndian2Int(substr($MACheaderData, $offset, 2));
$offset += 2;
$thisfile_monkeysaudio_raw['nFormatFlags'] = Helper::LittleEndian2Int(substr($MACheaderData, $offset, 2));
$offset += 2;
$thisfile_monkeysaudio_raw['nBlocksPerFrame'] = Helper::LittleEndian2Int(substr($MACheaderData, $offset, 4));
$offset += 4;
$thisfile_monkeysaudio_raw['nFinalFrameBlocks'] = Helper::LittleEndian2Int(substr($MACheaderData, $offset, 4));
$offset += 4;
$thisfile_monkeysaudio_raw['nTotalFrames'] = Helper::LittleEndian2Int(substr($MACheaderData, $offset, 4));
$offset += 4;
$thisfile_monkeysaudio_raw['nBitsPerSample'] = Helper::LittleEndian2Int(substr($MACheaderData, $offset, 2));
$offset += 2;
$thisfile_monkeysaudio_raw['nChannels'] = Helper::LittleEndian2Int(substr($MACheaderData, $offset, 2));
$offset += 2;
$thisfile_monkeysaudio_raw['nSampleRate'] = Helper::LittleEndian2Int(substr($MACheaderData, $offset, 4));
$offset += 4;
}
$thisfile_monkeysaudio['flags']['8-bit'] = (bool) ($thisfile_monkeysaudio_raw['nFormatFlags'] & 0x1);
$thisfile_monkeysaudio['flags']['crc-32'] = (bool) ($thisfile_monkeysaudio_raw['nFormatFlags'] & 0x2);
$thisfile_monkeysaudio['flags']['peak_level'] = (bool) ($thisfile_monkeysaudio_raw['nFormatFlags'] & 0x4);
$thisfile_monkeysaudio['flags']['24-bit'] = (bool) ($thisfile_monkeysaudio_raw['nFormatFlags'] & 0x8);
$thisfile_monkeysaudio['flags']['seek_elements'] = (bool) ($thisfile_monkeysaudio_raw['nFormatFlags'] & 0x10);
$thisfile_monkeysaudio['flags']['no_wav_header'] = (bool) ($thisfile_monkeysaudio_raw['nFormatFlags'] & 0x20);
$thisfile_monkeysaudio['version'] = $thisfile_monkeysaudio_raw['nVersion'] / 1000;
$thisfile_monkeysaudio['compression'] = $this->MonkeyCompressionLevelNameLookup($thisfile_monkeysaudio_raw['nCompressionLevel']);
if ($thisfile_monkeysaudio_raw['nVersion'] < 3980) {
$thisfile_monkeysaudio['samples_per_frame'] = $this->MonkeySamplesPerFrame($thisfile_monkeysaudio_raw['nVersion'], $thisfile_monkeysaudio_raw['nCompressionLevel']);
}
$thisfile_monkeysaudio['bits_per_sample'] = $thisfile_monkeysaudio['flags']['24-bit'] ? 24 : ($thisfile_monkeysaudio['flags']['8-bit'] ? 8 : 16);
$thisfile_monkeysaudio['channels'] = $thisfile_monkeysaudio_raw['nChannels'];
$info['audio']['channels'] = $thisfile_monkeysaudio['channels'];
$thisfile_monkeysaudio['sample_rate'] = $thisfile_monkeysaudio_raw['nSampleRate'];
if ($thisfile_monkeysaudio['sample_rate'] == 0) {
$info['error'][] = 'Corrupt MAC file: frequency == zero';
return false;
}
$info['audio']['sample_rate'] = $thisfile_monkeysaudio['sample_rate'];
if ($thisfile_monkeysaudio['flags']['peak_level']) {
$thisfile_monkeysaudio['peak_level'] = $thisfile_monkeysaudio_raw['nPeakLevel'];
$thisfile_monkeysaudio['peak_ratio'] = $thisfile_monkeysaudio['peak_level'] / pow(2, $thisfile_monkeysaudio['bits_per_sample'] - 1);
}
if ($thisfile_monkeysaudio_raw['nVersion'] >= 3980) {
$thisfile_monkeysaudio['samples'] = ($thisfile_monkeysaudio_raw['nTotalFrames'] - 1) * $thisfile_monkeysaudio_raw['nBlocksPerFrame'] + $thisfile_monkeysaudio_raw['nFinalFrameBlocks'];
} else {
$thisfile_monkeysaudio['samples'] = ($thisfile_monkeysaudio_raw['nTotalFrames'] - 1) * $thisfile_monkeysaudio['samples_per_frame'] + $thisfile_monkeysaudio_raw['nFinalFrameSamples'];
}
$thisfile_monkeysaudio['playtime'] = $thisfile_monkeysaudio['samples'] / $thisfile_monkeysaudio['sample_rate'];
if ($thisfile_monkeysaudio['playtime'] == 0) {
$info['error'][] = 'Corrupt MAC file: playtime == zero';
return false;
}
$info['playtime_seconds'] = $thisfile_monkeysaudio['playtime'];
$thisfile_monkeysaudio['compressed_size'] = $info['avdataend'] - $info['avdataoffset'];
$thisfile_monkeysaudio['uncompressed_size'] = $thisfile_monkeysaudio['samples'] * $thisfile_monkeysaudio['channels'] * ($thisfile_monkeysaudio['bits_per_sample'] / 8);
if ($thisfile_monkeysaudio['uncompressed_size'] == 0) {
$info['error'][] = 'Corrupt MAC file: uncompressed_size == zero';
return false;
}
$thisfile_monkeysaudio['compression_ratio'] = $thisfile_monkeysaudio['compressed_size'] / ($thisfile_monkeysaudio['uncompressed_size'] + $thisfile_monkeysaudio_raw['nHeaderDataBytes']);
$thisfile_monkeysaudio['bitrate'] = $thisfile_monkeysaudio['samples'] * $thisfile_monkeysaudio['channels'] * $thisfile_monkeysaudio['bits_per_sample'] / $thisfile_monkeysaudio['playtime'] * $thisfile_monkeysaudio['compression_ratio'];
$info['audio']['bitrate'] = $thisfile_monkeysaudio['bitrate'];
// add size of MAC header to avdataoffset
if ($thisfile_monkeysaudio_raw['nVersion'] >= 3980) {
$info['avdataoffset'] += $thisfile_monkeysaudio_raw['nDescriptorBytes'];
$info['avdataoffset'] += $thisfile_monkeysaudio_raw['nHeaderBytes'];
$info['avdataoffset'] += $thisfile_monkeysaudio_raw['nSeekTableBytes'];
$info['avdataoffset'] += $thisfile_monkeysaudio_raw['nHeaderDataBytes'];
$info['avdataend'] -= $thisfile_monkeysaudio_raw['nTerminatingDataBytes'];
} else {
$info['avdataoffset'] += $offset;
}
if ($thisfile_monkeysaudio_raw['nVersion'] >= 3980) {
if ($thisfile_monkeysaudio_raw['cFileMD5'] === str_repeat("", 16)) {
//$info['warning'][] = 'cFileMD5 is null';
} else {
$info['md5_data_source'] = '';
$md5 = $thisfile_monkeysaudio_raw['cFileMD5'];
for ($i = 0; $i < strlen($md5); ++$i) {
$info['md5_data_source'] .= str_pad(dechex(ord($md5[$i])), 2, '00', STR_PAD_LEFT);
}
if (!preg_match('/^[0-9a-f]{32}$/', $info['md5_data_source'])) {
unset($info['md5_data_source']);
}
}
}
$info['audio']['bits_per_sample'] = $thisfile_monkeysaudio['bits_per_sample'];
$info['audio']['encoder'] = 'MAC v' . number_format($thisfile_monkeysaudio['version'], 2);
$info['audio']['encoder_options'] = ucfirst($thisfile_monkeysaudio['compression']) . ' compression';
return true;
}
/**
* @param type $atom_data
*
* @return type
*
* @link http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html#NCTG
*/
public function QuicktimeParseNikonNCTG($atom_data)
{
// Nikon-specific QuickTime tags found in the NCDT atom of MOV videos from some Nikon cameras such as the Coolpix S8000 and D5100
// Data is stored as records of:
// * 4 bytes record type
// * 2 bytes size of data field type:
// 0x0001 = flag (size field *= 1-byte)
// 0x0002 = char (size field *= 1-byte)
// 0x0003 = DWORD+ (size field *= 2-byte), values are stored CDAB
// 0x0004 = QWORD+ (size field *= 4-byte), values are stored EFGHABCD
// 0x0005 = float (size field *= 8-byte), values are stored aaaabbbb where value is aaaa/bbbb; possibly multiple sets of values appended together
// 0x0007 = bytes (size field *= 1-byte), values are stored as ??????
// 0x0008 = ????? (size field *= 2-byte), values are stored as ??????
// * 2 bytes data size field
// * ? bytes data (string data may be null-padded; datestamp fields are in the format "2011:05:25 20:24:15")
// all integers are stored BigEndian
$NCTGtagName = array(0x1 => 'Make', 0x2 => 'Model', 0x3 => 'Software', 0x11 => 'CreateDate', 0x12 => 'DateTimeOriginal', 0x13 => 'FrameCount', 0x16 => 'FrameRate', 0x22 => 'FrameWidth', 0x23 => 'FrameHeight', 0x32 => 'AudioChannels', 0x33 => 'AudioBitsPerSample', 0x34 => 'AudioSampleRate', 0x2000001 => 'MakerNoteVersion', 0x2000005 => 'WhiteBalance', 0x200000b => 'WhiteBalanceFineTune', 0x200001e => 'ColorSpace', 0x2000023 => 'PictureControlData', 0x2000024 => 'WorldTime', 0x2000032 => 'UnknownInfo', 0x2000083 => 'LensType', 0x2000084 => 'Lens');
$offset = 0;
$datalength = strlen($atom_data);
$parsed = array();
while ($offset < $datalength) {
//echo GetId3_lib::PrintHexBytes(substr($atom_data, $offset, 4)).'<br>';
$record_type = Helper::BigEndian2Int(substr($atom_data, $offset, 4));
$offset += 4;
$data_size_type = Helper::BigEndian2Int(substr($atom_data, $offset, 2));
$offset += 2;
$data_size = Helper::BigEndian2Int(substr($atom_data, $offset, 2));
$offset += 2;
switch ($data_size_type) {
case 0x1:
// 0x0001 = flag (size field *= 1-byte)
$data = Helper::BigEndian2Int(substr($atom_data, $offset, $data_size * 1));
$offset += $data_size * 1;
break;
case 0x2:
// 0x0002 = char (size field *= 1-byte)
$data = substr($atom_data, $offset, $data_size * 1);
$offset += $data_size * 1;
$data = rtrim($data, "");
break;
case 0x3:
// 0x0003 = DWORD+ (size field *= 2-byte), values are stored CDAB
$data = '';
for ($i = $data_size - 1; $i >= 0; --$i) {
$data .= substr($atom_data, $offset + $i * 2, 2);
}
$data = Helper::BigEndian2Int($data);
$offset += $data_size * 2;
break;
case 0x4:
// 0x0004 = QWORD+ (size field *= 4-byte), values are stored EFGHABCD
$data = '';
for ($i = $data_size - 1; $i >= 0; --$i) {
$data .= substr($atom_data, $offset + $i * 4, 4);
}
$data = Helper::BigEndian2Int($data);
$offset += $data_size * 4;
break;
case 0x5:
// 0x0005 = float (size field *= 8-byte), values are stored aaaabbbb where value is aaaa/bbbb; possibly multiple sets of values appended together
$data = array();
for ($i = 0; $i < $data_size; ++$i) {
$numerator = Helper::BigEndian2Int(substr($atom_data, $offset + $i * 8 + 0, 4));
$denomninator = Helper::BigEndian2Int(substr($atom_data, $offset + $i * 8 + 4, 4));
if ($denomninator == 0) {
$data[$i] = false;
} else {
$data[$i] = (double) $numerator / $denomninator;
}
}
$offset += 8 * $data_size;
if (count($data) == 1) {
$data = $data[0];
}
break;
case 0x7:
// 0x0007 = bytes (size field *= 1-byte), values are stored as ??????
$data = substr($atom_data, $offset, $data_size * 1);
$offset += $data_size * 1;
break;
case 0x8:
// 0x0008 = ????? (size field *= 2-byte), values are stored as ??????
$data = substr($atom_data, $offset, $data_size * 2);
$offset += $data_size * 2;
break;
default:
echo 'QuicktimeParseNikonNCTG()::unknown $data_size_type: ' . $data_size_type . '<br>';
break 2;
}
switch ($record_type) {
case 0x11:
// CreateDate
// CreateDate
case 0x12:
// DateTimeOriginal
$data = strtotime($data);
break;
case 0x200001e:
// ColorSpace
switch ($data) {
case 1:
$data = 'sRGB';
break;
case 2:
$data = 'Adobe RGB';
break;
}
break;
case 0x2000023:
// PictureControlData
$PictureControlAdjust = array(0 => 'default', 1 => 'quick', 2 => 'full');
$FilterEffect = array(0x80 => 'off', 0x81 => 'yellow', 0x82 => 'orange', 0x83 => 'red', 0x84 => 'green', 0xff => 'n/a');
$ToningEffect = array(0x80 => 'b&w', 0x81 => 'sepia', 0x82 => 'cyanotype', 0x83 => 'red', 0x84 => 'yellow', 0x85 => 'green', 0x86 => 'blue-green', 0x87 => 'blue', 0x88 => 'purple-blue', 0x89 => 'red-purple', 0xff => 'n/a');
$data = array('PictureControlVersion' => substr($data, 0, 4), 'PictureControlName' => rtrim(substr($data, 4, 20), ""), 'PictureControlBase' => rtrim(substr($data, 24, 20), ""), 'PictureControlAdjust' => $PictureControlAdjust[ord(substr($data, 48, 1))], 'PictureControlQuickAdjust' => ord(substr($data, 49, 1)), 'Sharpness' => ord(substr($data, 50, 1)), 'Contrast' => ord(substr($data, 51, 1)), 'Brightness' => ord(substr($data, 52, 1)), 'Saturation' => ord(substr($data, 53, 1)), 'HueAdjustment' => ord(substr($data, 54, 1)), 'FilterEffect' => $FilterEffect[ord(substr($data, 55, 1))], 'ToningEffect' => $ToningEffect[ord(substr($data, 56, 1))], 'ToningSaturation' => ord(substr($data, 57, 1)));
break;
case 0x2000024:
// WorldTime
// http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html#WorldTime
// timezone is stored as offset from GMT in minutes
$timezone = Helper::BigEndian2Int(substr($data, 0, 2));
if ($timezone & 0x8000) {
$timezone = 0 - (0x10000 - $timezone);
}
$timezone /= 60;
$dst = (bool) Helper::BigEndian2Int(substr($data, 2, 1));
switch (Helper::BigEndian2Int(substr($data, 3, 1))) {
case 2:
$datedisplayformat = 'D/M/Y';
break;
case 1:
$datedisplayformat = 'M/D/Y';
break;
case 0:
default:
$datedisplayformat = 'Y/M/D';
break;
}
$data = array('timezone' => floatval($timezone), 'dst' => $dst, 'display' => $datedisplayformat);
break;
case 0x2000083:
// LensType
$data = array('mf' => (bool) ($data & 0x1), 'd' => (bool) ($data & 0x2), 'g' => (bool) ($data & 0x4), 'vr' => (bool) ($data & 0x8));
break;
}
$tag_name = isset($NCTGtagName[$record_type]) ? $NCTGtagName[$record_type] : '0x' . str_pad(dechex($record_type), 8, '0', STR_PAD_LEFT);
$parsed[$tag_name] = $data;
}
return $parsed;
}
/**
* @return bool
*/
public function analyze()
{
$info =& $this->getid3->info;
// based loosely on code from TTwinVQ by Jurgen Faul <jfaulØgmx*de>
// http://jfaul.de/atl or http://j-faul.virtualave.net/atl/atl.html
$info['fileformat'] = 'vqf';
$info['audio']['dataformat'] = 'vqf';
$info['audio']['bitrate_mode'] = 'cbr';
$info['audio']['lossless'] = false;
// shortcut
$info['vqf']['raw'] = array();
$thisfile_vqf =& $info['vqf'];
$thisfile_vqf_raw =& $thisfile_vqf['raw'];
fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
$VQFheaderData = fread($this->getid3->fp, 16);
$offset = 0;
$thisfile_vqf_raw['header_tag'] = substr($VQFheaderData, $offset, 4);
$magic = 'TWIN';
if ($thisfile_vqf_raw['header_tag'] != $magic) {
$info['error'][] = 'Expecting "' . Helper::PrintHexBytes($magic) . '" at offset ' . $info['avdataoffset'] . ', found "' . Helper::PrintHexBytes($thisfile_vqf_raw['header_tag']) . '"';
unset($info['vqf']);
unset($info['fileformat']);
return false;
}
$offset += 4;
$thisfile_vqf_raw['version'] = substr($VQFheaderData, $offset, 8);
$offset += 8;
$thisfile_vqf_raw['size'] = Helper::BigEndian2Int(substr($VQFheaderData, $offset, 4));
$offset += 4;
while (ftell($this->getid3->fp) < $info['avdataend']) {
$ChunkBaseOffset = ftell($this->getid3->fp);
$chunkoffset = 0;
$ChunkData = fread($this->getid3->fp, 8);
$ChunkName = substr($ChunkData, $chunkoffset, 4);
if ($ChunkName == 'DATA') {
$info['avdataoffset'] = $ChunkBaseOffset;
break;
}
$chunkoffset += 4;
$ChunkSize = Helper::BigEndian2Int(substr($ChunkData, $chunkoffset, 4));
$chunkoffset += 4;
if ($ChunkSize > $info['avdataend'] - ftell($this->getid3->fp)) {
$info['error'][] = 'Invalid chunk size (' . $ChunkSize . ') for chunk "' . $ChunkName . '" at offset ' . $ChunkBaseOffset;
break;
}
if ($ChunkSize > 0) {
$ChunkData .= fread($this->getid3->fp, $ChunkSize);
}
switch ($ChunkName) {
case 'COMM':
// shortcut
$thisfile_vqf['COMM'] = array();
$thisfile_vqf_COMM =& $thisfile_vqf['COMM'];
$thisfile_vqf_COMM['channel_mode'] = Helper::BigEndian2Int(substr($ChunkData, $chunkoffset, 4));
$chunkoffset += 4;
$thisfile_vqf_COMM['bitrate'] = Helper::BigEndian2Int(substr($ChunkData, $chunkoffset, 4));
$chunkoffset += 4;
$thisfile_vqf_COMM['sample_rate'] = Helper::BigEndian2Int(substr($ChunkData, $chunkoffset, 4));
$chunkoffset += 4;
$thisfile_vqf_COMM['security_level'] = Helper::BigEndian2Int(substr($ChunkData, $chunkoffset, 4));
$chunkoffset += 4;
$info['audio']['channels'] = $thisfile_vqf_COMM['channel_mode'] + 1;
$info['audio']['sample_rate'] = $this->VQFchannelFrequencyLookup($thisfile_vqf_COMM['sample_rate']);
$info['audio']['bitrate'] = $thisfile_vqf_COMM['bitrate'] * 1000;
$info['audio']['encoder_options'] = 'CBR' . ceil($info['audio']['bitrate'] / 1000);
if ($info['audio']['bitrate'] == 0) {
$info['error'][] = 'Corrupt VQF file: bitrate_audio == zero';
return false;
}
break;
case 'NAME':
case 'AUTH':
case '(c) ':
case 'FILE':
case 'COMT':
case 'ALBM':
$thisfile_vqf['comments'][$this->VQFcommentNiceNameLookup($ChunkName)][] = trim(substr($ChunkData, 8));
break;
case 'DSIZ':
$thisfile_vqf['DSIZ'] = Helper::BigEndian2Int(substr($ChunkData, 8, 4));
break;
default:
$info['warning'][] = 'Unhandled chunk type "' . $ChunkName . '" at offset ' . $ChunkBaseOffset;
break;
}
}
$info['playtime_seconds'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / $info['audio']['bitrate'];
if (isset($thisfile_vqf['DSIZ']) && $thisfile_vqf['DSIZ'] != $info['avdataend'] - $info['avdataoffset'] - strlen('DATA')) {
switch ($thisfile_vqf['DSIZ']) {
case 0:
case 1:
$info['warning'][] = 'Invalid DSIZ value "' . $thisfile_vqf['DSIZ'] . '". This is known to happen with VQF files encoded by Ahead Nero, and seems to be its way of saying this is TwinVQF v' . ($thisfile_vqf['DSIZ'] + 1) . '.0';
$info['audio']['encoder'] = 'Ahead Nero';
break;
default:
$info['warning'][] = 'Probable corrupted file - should be ' . $thisfile_vqf['DSIZ'] . ' bytes, actually ' . ($info['avdataend'] - $info['avdataoffset'] - strlen('DATA'));
break;
}
}
return true;
}
/**
* @return bool
*/
public function analyze()
{
$info =& $this->getid3->info;
$OriginalAVdataOffset = $info['avdataoffset'];
fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
$VOCheader = fread($this->getid3->fp, 26);
$magic = 'Creative Voice File';
if (substr($VOCheader, 0, 19) != $magic) {
$info['error'][] = 'Expecting "' . Helper::PrintHexBytes($magic) . '" at offset ' . $info['avdataoffset'] . ', found "' . Helper::PrintHexBytes(substr($VOCheader, 0, 19)) . '"';
return false;
}
// shortcuts
$thisfile_audio =& $info['audio'];
$info['voc'] = array();
$thisfile_voc =& $info['voc'];
$info['fileformat'] = 'voc';
$thisfile_audio['dataformat'] = 'voc';
$thisfile_audio['bitrate_mode'] = 'cbr';
$thisfile_audio['lossless'] = true;
$thisfile_audio['channels'] = 1;
// might be overriden below
$thisfile_audio['bits_per_sample'] = 8;
// might be overriden below
// byte # Description
// ------ ------------------------------------------
// 00-12 'Creative Voice File'
// 13 1A (eof to abort printing of file)
// 14-15 Offset of first datablock in .voc file (std 1A 00 in Intel Notation)
// 16-17 Version number (minor,major) (VOC-HDR puts 0A 01)
// 18-19 2's Comp of Ver. # + 1234h (VOC-HDR puts 29 11)
$thisfile_voc['header']['datablock_offset'] = Helper::LittleEndian2Int(substr($VOCheader, 20, 2));
$thisfile_voc['header']['minor_version'] = Helper::LittleEndian2Int(substr($VOCheader, 22, 1));
$thisfile_voc['header']['major_version'] = Helper::LittleEndian2Int(substr($VOCheader, 23, 1));
do {
$BlockOffset = ftell($this->getid3->fp);
$BlockData = fread($this->getid3->fp, 4);
$BlockType = ord($BlockData[0]);
$BlockSize = Helper::LittleEndian2Int(substr($BlockData, 1, 3));
$ThisBlock = array();
Helper::safe_inc($thisfile_voc['blocktypes'][$BlockType], 1);
switch ($BlockType) {
case 0:
// Terminator
// do nothing, we'll break out of the loop down below
break;
case 1:
// Sound data
$BlockData .= fread($this->getid3->fp, 2);
if ($info['avdataoffset'] <= $OriginalAVdataOffset) {
$info['avdataoffset'] = ftell($this->getid3->fp);
}
fseek($this->getid3->fp, $BlockSize - 2, SEEK_CUR);
$ThisBlock['sample_rate_id'] = Helper::LittleEndian2Int(substr($BlockData, 4, 1));
$ThisBlock['compression_type'] = Helper::LittleEndian2Int(substr($BlockData, 5, 1));
$ThisBlock['compression_name'] = $this->VOCcompressionTypeLookup($ThisBlock['compression_type']);
if ($ThisBlock['compression_type'] <= 3) {
$thisfile_voc['compressed_bits_per_sample'] = Helper::CastAsInt(str_replace('-bit', '', $ThisBlock['compression_name']));
}
// Less accurate sample_rate calculation than the Extended block (#8) data (but better than nothing if Extended Block is not available)
if (empty($thisfile_audio['sample_rate'])) {
// SR byte = 256 - (1000000 / sample_rate)
$thisfile_audio['sample_rate'] = Helper::trunc(1000000 / (256 - $ThisBlock['sample_rate_id']) / $thisfile_audio['channels']);
}
break;
case 2:
// Sound continue
// Sound continue
case 3:
// Silence
// Silence
case 4:
// Marker
// Marker
case 6:
// Repeat
// Repeat
case 7:
// End repeat
// nothing useful, just skip
fseek($this->getid3->fp, $BlockSize, SEEK_CUR);
break;
case 8:
// Extended
$BlockData .= fread($this->getid3->fp, 4);
//00-01 Time Constant:
// Mono: 65536 - (256000000 / sample_rate)
// Stereo: 65536 - (256000000 / (sample_rate * 2))
$ThisBlock['time_constant'] = Helper::LittleEndian2Int(substr($BlockData, 4, 2));
$ThisBlock['pack_method'] = Helper::LittleEndian2Int(substr($BlockData, 6, 1));
$ThisBlock['stereo'] = (bool) Helper::LittleEndian2Int(substr($BlockData, 7, 1));
$thisfile_audio['channels'] = $ThisBlock['stereo'] ? 2 : 1;
$thisfile_audio['sample_rate'] = Helper::trunc(256000000 / (65536 - $ThisBlock['time_constant']) / $thisfile_audio['channels']);
break;
case 9:
// data block that supersedes blocks 1 and 8. Used for stereo, 16 bit
$BlockData .= fread($this->getid3->fp, 12);
if ($info['avdataoffset'] <= $OriginalAVdataOffset) {
$info['avdataoffset'] = ftell($this->getid3->fp);
}
fseek($this->getid3->fp, $BlockSize - 12, SEEK_CUR);
$ThisBlock['sample_rate'] = Helper::LittleEndian2Int(substr($BlockData, 4, 4));
$ThisBlock['bits_per_sample'] = Helper::LittleEndian2Int(substr($BlockData, 8, 1));
$ThisBlock['channels'] = Helper::LittleEndian2Int(substr($BlockData, 9, 1));
$ThisBlock['wFormat'] = Helper::LittleEndian2Int(substr($BlockData, 10, 2));
$ThisBlock['compression_name'] = $this->VOCwFormatLookup($ThisBlock['wFormat']);
if ($this->VOCwFormatActualBitsPerSampleLookup($ThisBlock['wFormat'])) {
$thisfile_voc['compressed_bits_per_sample'] = $this->VOCwFormatActualBitsPerSampleLookup($ThisBlock['wFormat']);
}
$thisfile_audio['sample_rate'] = $ThisBlock['sample_rate'];
$thisfile_audio['bits_per_sample'] = $ThisBlock['bits_per_sample'];
$thisfile_audio['channels'] = $ThisBlock['channels'];
break;
default:
$info['warning'][] = 'Unhandled block type "' . $BlockType . '" at offset ' . $BlockOffset;
fseek($this->getid3->fp, $BlockSize, SEEK_CUR);
break;
}
if (!empty($ThisBlock)) {
$ThisBlock['block_offset'] = $BlockOffset;
$ThisBlock['block_size'] = $BlockSize;
$ThisBlock['block_type_id'] = $BlockType;
$thisfile_voc['blocks'][] = $ThisBlock;
}
} while (!feof($this->getid3->fp) && $BlockType != 0);
// Terminator block doesn't have size field, so seek back 3 spaces
fseek($this->getid3->fp, -3, SEEK_CUR);
ksort($thisfile_voc['blocktypes']);
if (!empty($thisfile_voc['compressed_bits_per_sample'])) {
$info['playtime_seconds'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / ($thisfile_voc['compressed_bits_per_sample'] * $thisfile_audio['channels'] * $thisfile_audio['sample_rate']);
$thisfile_audio['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / $info['playtime_seconds'];
}
return true;
}
/**
* @return bool
*/
public function analyze()
{
$info =& $this->getid3->info;
$info['fileformat'] = 'swf';
$info['video']['dataformat'] = 'swf';
// http://www.openswf.org/spec/SWFfileformat.html
fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
$SWFfileData = fread($this->getid3->fp, $info['avdataend'] - $info['avdataoffset']);
// 8 + 2 + 2 + max(9) bytes NOT including Frame_Size RECT data
$info['swf']['header']['signature'] = substr($SWFfileData, 0, 3);
switch ($info['swf']['header']['signature']) {
case 'FWS':
$info['swf']['header']['compressed'] = false;
break;
case 'CWS':
$info['swf']['header']['compressed'] = true;
break;
default:
$info['error'][] = 'Expecting "FWS" or "CWS" at offset ' . $info['avdataoffset'] . ', found "' . Helper::PrintHexBytes($info['swf']['header']['signature']) . '"';
unset($info['swf']);
unset($info['fileformat']);
return false;
break;
}
$info['swf']['header']['version'] = Helper::LittleEndian2Int(substr($SWFfileData, 3, 1));
$info['swf']['header']['length'] = Helper::LittleEndian2Int(substr($SWFfileData, 4, 4));
if ($info['swf']['header']['compressed']) {
$SWFHead = substr($SWFfileData, 0, 8);
$SWFfileData = substr($SWFfileData, 8);
if ($decompressed = @gzuncompress($SWFfileData)) {
$SWFfileData = $SWFHead . $decompressed;
} else {
$info['error'][] = 'Error decompressing compressed SWF data (' . strlen($SWFfileData) . ' bytes compressed, should be ' . ($info['swf']['header']['length'] - 8) . ' bytes uncompressed)';
return false;
}
}
$FrameSizeBitsPerValue = (ord(substr($SWFfileData, 8, 1)) & 0xf8) >> 3;
$FrameSizeDataLength = ceil((5 + 4 * $FrameSizeBitsPerValue) / 8);
$FrameSizeDataString = str_pad(decbin(ord(substr($SWFfileData, 8, 1)) & 0x7), 3, '0', STR_PAD_LEFT);
for ($i = 1; $i < $FrameSizeDataLength; ++$i) {
$FrameSizeDataString .= str_pad(decbin(ord(substr($SWFfileData, 8 + $i, 1))), 8, '0', STR_PAD_LEFT);
}
list($X1, $X2, $Y1, $Y2) = explode("\n", wordwrap($FrameSizeDataString, $FrameSizeBitsPerValue, "\n", 1));
$info['swf']['header']['frame_width'] = Helper::Bin2Dec($X2);
$info['swf']['header']['frame_height'] = Helper::Bin2Dec($Y2);
// http://www-lehre.informatik.uni-osnabrueck.de/~fbstark/diplom/docs/swf/Flash_Uncovered.htm
// Next in the header is the frame rate, which is kind of weird.
// It is supposed to be stored as a 16bit integer, but the first byte
// (or last depending on how you look at it) is completely ignored.
// Example: 0x000C -> 0x0C -> 12 So the frame rate is 12 fps.
// Byte at (8 + $FrameSizeDataLength) is always zero and ignored
$info['swf']['header']['frame_rate'] = Helper::LittleEndian2Int(substr($SWFfileData, 9 + $FrameSizeDataLength, 1));
$info['swf']['header']['frame_count'] = Helper::LittleEndian2Int(substr($SWFfileData, 10 + $FrameSizeDataLength, 2));
$info['video']['frame_rate'] = $info['swf']['header']['frame_rate'];
$info['video']['resolution_x'] = intval(round($info['swf']['header']['frame_width'] / 20));
$info['video']['resolution_y'] = intval(round($info['swf']['header']['frame_height'] / 20));
$info['video']['pixel_aspect_ratio'] = (double) 1;
if ($info['swf']['header']['frame_count'] > 0 && $info['swf']['header']['frame_rate'] > 0) {
$info['playtime_seconds'] = $info['swf']['header']['frame_count'] / $info['swf']['header']['frame_rate'];
}
//echo __LINE__.'='.number_format(microtime(true) - $start_time, 3).'<br>';
// SWF tags
$CurrentOffset = 12 + $FrameSizeDataLength;
$SWFdataLength = strlen($SWFfileData);
while ($CurrentOffset < $SWFdataLength) {
//echo __LINE__.'='.number_format(microtime(true) - $start_time, 3).'<br>';
$TagIDTagLength = Helper::LittleEndian2Int(substr($SWFfileData, $CurrentOffset, 2));
$TagID = ($TagIDTagLength & 0xfffc) >> 6;
$TagLength = $TagIDTagLength & 0x3f;
$CurrentOffset += 2;
if ($TagLength == 0x3f) {
$TagLength = Helper::LittleEndian2Int(substr($SWFfileData, $CurrentOffset, 4));
$CurrentOffset += 4;
}
unset($TagData);
$TagData['offset'] = $CurrentOffset;
$TagData['size'] = $TagLength;
$TagData['id'] = $TagID;
$TagData['data'] = substr($SWFfileData, $CurrentOffset, $TagLength);
switch ($TagID) {
case 0:
// end of movie
break 2;
case 9:
// Set background color
//$info['swf']['tags'][] = $TagData;
$info['swf']['bgcolor'] = strtoupper(str_pad(dechex(Helper::BigEndian2Int($TagData['data'])), 6, '0', STR_PAD_LEFT));
break;
default:
if ($this->ReturnAllTagData) {
$info['swf']['tags'][] = $TagData;
}
break;
}
$CurrentOffset += $TagLength;
}
return true;
}
/**
* @return bool
*/
public function analyze()
{
$info =& $this->getid3->info;
// shortcuts
$info['bmp']['header']['raw'] = array();
$thisfile_bmp =& $info['bmp'];
$thisfile_bmp_header =& $thisfile_bmp['header'];
$thisfile_bmp_header_raw =& $thisfile_bmp_header['raw'];
// BITMAPFILEHEADER [14 bytes] - http://msdn.microsoft.com/library/en-us/gdi/bitmaps_62uq.asp
// all versions
// WORD bfType;
// DWORD bfSize;
// WORD bfReserved1;
// WORD bfReserved2;
// DWORD bfOffBits;
fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
$offset = 0;
$BMPheader = fread($this->getid3->fp, 14 + 40);
$thisfile_bmp_header_raw['identifier'] = substr($BMPheader, $offset, 2);
$offset += 2;
$magic = 'BM';
if ($thisfile_bmp_header_raw['identifier'] != $magic) {
$info['error'][] = 'Expecting "' . Helper::PrintHexBytes($magic) . '" at offset ' . $info['avdataoffset'] . ', found "' . Helper::PrintHexBytes($thisfile_bmp_header_raw['identifier']) . '"';
unset($info['fileformat']);
unset($info['bmp']);
return false;
}
$thisfile_bmp_header_raw['filesize'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
$thisfile_bmp_header_raw['reserved1'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 2));
$offset += 2;
$thisfile_bmp_header_raw['reserved2'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 2));
$offset += 2;
$thisfile_bmp_header_raw['data_offset'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
$thisfile_bmp_header_raw['header_size'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
// check if the hardcoded-to-1 "planes" is at offset 22 or 26
$planes22 = Helper::LittleEndian2Int(substr($BMPheader, 22, 2));
$planes26 = Helper::LittleEndian2Int(substr($BMPheader, 26, 2));
if ($planes22 == 1 && $planes26 != 1) {
$thisfile_bmp['type_os'] = 'OS/2';
$thisfile_bmp['type_version'] = 1;
} elseif ($planes26 == 1 && $planes22 != 1) {
$thisfile_bmp['type_os'] = 'Windows';
$thisfile_bmp['type_version'] = 1;
} elseif ($thisfile_bmp_header_raw['header_size'] == 12) {
$thisfile_bmp['type_os'] = 'OS/2';
$thisfile_bmp['type_version'] = 1;
} elseif ($thisfile_bmp_header_raw['header_size'] == 40) {
$thisfile_bmp['type_os'] = 'Windows';
$thisfile_bmp['type_version'] = 1;
} elseif ($thisfile_bmp_header_raw['header_size'] == 84) {
$thisfile_bmp['type_os'] = 'Windows';
$thisfile_bmp['type_version'] = 4;
} elseif ($thisfile_bmp_header_raw['header_size'] == 100) {
$thisfile_bmp['type_os'] = 'Windows';
$thisfile_bmp['type_version'] = 5;
} else {
$info['error'][] = 'Unknown BMP subtype (or not a BMP file)';
unset($info['fileformat']);
unset($info['bmp']);
return false;
}
$info['fileformat'] = 'bmp';
$info['video']['dataformat'] = 'bmp';
$info['video']['lossless'] = true;
$info['video']['pixel_aspect_ratio'] = (double) 1;
if ($thisfile_bmp['type_os'] == 'OS/2') {
// OS/2-format BMP
// http://netghost.narod.ru/gff/graphics/summary/os2bmp.htm
// DWORD Size; /* Size of this structure in bytes */
// DWORD Width; /* Bitmap width in pixels */
// DWORD Height; /* Bitmap height in pixel */
// WORD NumPlanes; /* Number of bit planes (color depth) */
// WORD BitsPerPixel; /* Number of bits per pixel per plane */
$thisfile_bmp_header_raw['width'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 2));
$offset += 2;
$thisfile_bmp_header_raw['height'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 2));
$offset += 2;
$thisfile_bmp_header_raw['planes'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 2));
$offset += 2;
$thisfile_bmp_header_raw['bits_per_pixel'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 2));
$offset += 2;
$info['video']['resolution_x'] = $thisfile_bmp_header_raw['width'];
$info['video']['resolution_y'] = $thisfile_bmp_header_raw['height'];
$info['video']['codec'] = 'BI_RGB ' . $thisfile_bmp_header_raw['bits_per_pixel'] . '-bit';
$info['video']['bits_per_sample'] = $thisfile_bmp_header_raw['bits_per_pixel'];
if ($thisfile_bmp['type_version'] >= 2) {
// DWORD Compression; /* Bitmap compression scheme */
// DWORD ImageDataSize; /* Size of bitmap data in bytes */
// DWORD XResolution; /* X resolution of display device */
// DWORD YResolution; /* Y resolution of display device */
// DWORD ColorsUsed; /* Number of color table indices used */
// DWORD ColorsImportant; /* Number of important color indices */
// WORD Units; /* Type of units used to measure resolution */
// WORD Reserved; /* Pad structure to 4-byte boundary */
// WORD Recording; /* Recording algorithm */
// WORD Rendering; /* Halftoning algorithm used */
// DWORD Size1; /* Reserved for halftoning algorithm use */
// DWORD Size2; /* Reserved for halftoning algorithm use */
// DWORD ColorEncoding; /* Color model used in bitmap */
// DWORD Identifier; /* Reserved for application use */
$thisfile_bmp_header_raw['compression'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
$thisfile_bmp_header_raw['bmp_data_size'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
$thisfile_bmp_header_raw['resolution_h'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
$thisfile_bmp_header_raw['resolution_v'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
$thisfile_bmp_header_raw['colors_used'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
$thisfile_bmp_header_raw['colors_important'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
$thisfile_bmp_header_raw['resolution_units'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 2));
$offset += 2;
$thisfile_bmp_header_raw['reserved1'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 2));
$offset += 2;
$thisfile_bmp_header_raw['recording'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 2));
$offset += 2;
$thisfile_bmp_header_raw['rendering'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 2));
$offset += 2;
$thisfile_bmp_header_raw['size1'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
$thisfile_bmp_header_raw['size2'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
$thisfile_bmp_header_raw['color_encoding'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
$thisfile_bmp_header_raw['identifier'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
$thisfile_bmp_header['compression'] = $this->BMPcompressionOS2Lookup($thisfile_bmp_header_raw['compression']);
$info['video']['codec'] = $thisfile_bmp_header['compression'] . ' ' . $thisfile_bmp_header_raw['bits_per_pixel'] . '-bit';
}
} elseif ($thisfile_bmp['type_os'] == 'Windows') {
// Windows-format BMP
// BITMAPINFOHEADER - [40 bytes] http://msdn.microsoft.com/library/en-us/gdi/bitmaps_1rw2.asp
// all versions
// DWORD biSize;
// LONG biWidth;
// LONG biHeight;
// WORD biPlanes;
// WORD biBitCount;
// DWORD biCompression;
// DWORD biSizeImage;
// LONG biXPelsPerMeter;
// LONG biYPelsPerMeter;
// DWORD biClrUsed;
// DWORD biClrImportant;
// possibly integrate this section and module.audio-video.riff.php::ParseBITMAPINFOHEADER() ?
$thisfile_bmp_header_raw['width'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4), true);
$offset += 4;
$thisfile_bmp_header_raw['height'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4), true);
$offset += 4;
$thisfile_bmp_header_raw['planes'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 2));
$offset += 2;
$thisfile_bmp_header_raw['bits_per_pixel'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 2));
$offset += 2;
$thisfile_bmp_header_raw['compression'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
$thisfile_bmp_header_raw['bmp_data_size'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
$thisfile_bmp_header_raw['resolution_h'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4), true);
$offset += 4;
$thisfile_bmp_header_raw['resolution_v'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4), true);
$offset += 4;
$thisfile_bmp_header_raw['colors_used'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
$thisfile_bmp_header_raw['colors_important'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
$thisfile_bmp_header['compression'] = $this->BMPcompressionWindowsLookup($thisfile_bmp_header_raw['compression']);
$info['video']['resolution_x'] = $thisfile_bmp_header_raw['width'];
$info['video']['resolution_y'] = $thisfile_bmp_header_raw['height'];
$info['video']['codec'] = $thisfile_bmp_header['compression'] . ' ' . $thisfile_bmp_header_raw['bits_per_pixel'] . '-bit';
$info['video']['bits_per_sample'] = $thisfile_bmp_header_raw['bits_per_pixel'];
if ($thisfile_bmp['type_version'] >= 4 || $thisfile_bmp_header_raw['compression'] == 3) {
// should only be v4+, but BMPs with type_version==1 and BI_BITFIELDS compression have been seen
$BMPheader .= fread($this->getid3->fp, 44);
// BITMAPV4HEADER - [44 bytes] - http://msdn.microsoft.com/library/en-us/gdi/bitmaps_2k1e.asp
// Win95+, WinNT4.0+
// DWORD bV4RedMask;
// DWORD bV4GreenMask;
// DWORD bV4BlueMask;
// DWORD bV4AlphaMask;
// DWORD bV4CSType;
// CIEXYZTRIPLE bV4Endpoints;
// DWORD bV4GammaRed;
// DWORD bV4GammaGreen;
// DWORD bV4GammaBlue;
$thisfile_bmp_header_raw['red_mask'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
$thisfile_bmp_header_raw['green_mask'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
$thisfile_bmp_header_raw['blue_mask'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
$thisfile_bmp_header_raw['alpha_mask'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
$thisfile_bmp_header_raw['cs_type'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
$thisfile_bmp_header_raw['ciexyz_red'] = substr($BMPheader, $offset, 4);
$offset += 4;
$thisfile_bmp_header_raw['ciexyz_green'] = substr($BMPheader, $offset, 4);
$offset += 4;
$thisfile_bmp_header_raw['ciexyz_blue'] = substr($BMPheader, $offset, 4);
$offset += 4;
$thisfile_bmp_header_raw['gamma_red'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
$thisfile_bmp_header_raw['gamma_green'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
$thisfile_bmp_header_raw['gamma_blue'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
$thisfile_bmp_header['ciexyz_red'] = Helper::FixedPoint2_30(strrev($thisfile_bmp_header_raw['ciexyz_red']));
$thisfile_bmp_header['ciexyz_green'] = Helper::FixedPoint2_30(strrev($thisfile_bmp_header_raw['ciexyz_green']));
$thisfile_bmp_header['ciexyz_blue'] = Helper::FixedPoint2_30(strrev($thisfile_bmp_header_raw['ciexyz_blue']));
}
if ($thisfile_bmp['type_version'] >= 5) {
$BMPheader .= fread($this->getid3->fp, 16);
// BITMAPV5HEADER - [16 bytes] - http://msdn.microsoft.com/library/en-us/gdi/bitmaps_7c36.asp
// Win98+, Win2000+
// DWORD bV5Intent;
// DWORD bV5ProfileData;
// DWORD bV5ProfileSize;
// DWORD bV5Reserved;
$thisfile_bmp_header_raw['intent'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
$thisfile_bmp_header_raw['profile_data_offset'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
$thisfile_bmp_header_raw['profile_data_size'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
$thisfile_bmp_header_raw['reserved3'] = Helper::LittleEndian2Int(substr($BMPheader, $offset, 4));
$offset += 4;
}
} else {
$info['error'][] = 'Unknown BMP format in header.';
return false;
}
if ($this->ExtractPalette || $this->ExtractData) {
$PaletteEntries = 0;
if ($thisfile_bmp_header_raw['bits_per_pixel'] < 16) {
$PaletteEntries = pow(2, $thisfile_bmp_header_raw['bits_per_pixel']);
} elseif (isset($thisfile_bmp_header_raw['colors_used']) && $thisfile_bmp_header_raw['colors_used'] > 0 && $thisfile_bmp_header_raw['colors_used'] <= 256) {
$PaletteEntries = $thisfile_bmp_header_raw['colors_used'];
}
if ($PaletteEntries > 0) {
$BMPpalette = fread($this->getid3->fp, 4 * $PaletteEntries);
$paletteoffset = 0;
for ($i = 0; $i < $PaletteEntries; ++$i) {
// RGBQUAD - http://msdn.microsoft.com/library/en-us/gdi/bitmaps_5f8y.asp
// BYTE rgbBlue;
// BYTE rgbGreen;
// BYTE rgbRed;
// BYTE rgbReserved;
$blue = Helper::LittleEndian2Int(substr($BMPpalette, $paletteoffset++, 1));
$green = Helper::LittleEndian2Int(substr($BMPpalette, $paletteoffset++, 1));
$red = Helper::LittleEndian2Int(substr($BMPpalette, $paletteoffset++, 1));
if ($thisfile_bmp['type_os'] == 'OS/2' && $thisfile_bmp['type_version'] == 1) {
// no padding byte
} else {
++$paletteoffset;
// padding byte
}
$thisfile_bmp['palette'][$i] = $red << 16 | $green << 8 | $blue;
}
}
}
if ($this->ExtractData) {
fseek($this->getid3->fp, $thisfile_bmp_header_raw['data_offset'], SEEK_SET);
$RowByteLength = ceil($thisfile_bmp_header_raw['width'] * ($thisfile_bmp_header_raw['bits_per_pixel'] / 8) / 4) * 4;
// round up to nearest DWORD boundry
$BMPpixelData = fread($this->getid3->fp, $thisfile_bmp_header_raw['height'] * $RowByteLength);
$pixeldataoffset = 0;
$thisfile_bmp_header_raw['compression'] = isset($thisfile_bmp_header_raw['compression']) ? $thisfile_bmp_header_raw['compression'] : '';
switch ($thisfile_bmp_header_raw['compression']) {
case 0:
// BI_RGB
switch ($thisfile_bmp_header_raw['bits_per_pixel']) {
case 1:
for ($row = $thisfile_bmp_header_raw['height'] - 1; $row >= 0; --$row) {
for ($col = 0; $col < $thisfile_bmp_header_raw['width']; $col = $col) {
$paletteindexbyte = ord($BMPpixelData[$pixeldataoffset++]);
for ($i = 7; $i >= 0; --$i) {
$paletteindex = ($paletteindexbyte & 0x1 << $i) >> $i;
$thisfile_bmp['data'][$row][$col] = $thisfile_bmp['palette'][$paletteindex];
++$col;
}
}
while ($pixeldataoffset % 4 != 0) {
// lines are padded to nearest DWORD
++$pixeldataoffset;
}
}
break;
case 4:
for ($row = $thisfile_bmp_header_raw['height'] - 1; $row >= 0; --$row) {
for ($col = 0; $col < $thisfile_bmp_header_raw['width']; $col = $col) {
$paletteindexbyte = ord($BMPpixelData[$pixeldataoffset++]);
for ($i = 1; $i >= 0; --$i) {
$paletteindex = ($paletteindexbyte & 0xf << 4 * $i) >> 4 * $i;
$thisfile_bmp['data'][$row][$col] = $thisfile_bmp['palette'][$paletteindex];
++$col;
}
}
while ($pixeldataoffset % 4 != 0) {
// lines are padded to nearest DWORD
++$pixeldataoffset;
}
}
break;
case 8:
for ($row = $thisfile_bmp_header_raw['height'] - 1; $row >= 0; --$row) {
for ($col = 0; $col < $thisfile_bmp_header_raw['width']; ++$col) {
$paletteindex = ord($BMPpixelData[$pixeldataoffset++]);
$thisfile_bmp['data'][$row][$col] = $thisfile_bmp['palette'][$paletteindex];
}
while ($pixeldataoffset % 4 != 0) {
// lines are padded to nearest DWORD
++$pixeldataoffset;
}
}
break;
case 24:
for ($row = $thisfile_bmp_header_raw['height'] - 1; $row >= 0; --$row) {
for ($col = 0; $col < $thisfile_bmp_header_raw['width']; ++$col) {
$thisfile_bmp['data'][$row][$col] = ord($BMPpixelData[$pixeldataoffset + 2]) << 16 | ord($BMPpixelData[$pixeldataoffset + 1]) << 8 | ord($BMPpixelData[$pixeldataoffset]);
$pixeldataoffset += 3;
}
while ($pixeldataoffset % 4 != 0) {
// lines are padded to nearest DWORD
++$pixeldataoffset;
}
}
break;
case 32:
for ($row = $thisfile_bmp_header_raw['height'] - 1; $row >= 0; --$row) {
for ($col = 0; $col < $thisfile_bmp_header_raw['width']; ++$col) {
$thisfile_bmp['data'][$row][$col] = ord($BMPpixelData[$pixeldataoffset + 3]) << 24 | ord($BMPpixelData[$pixeldataoffset + 2]) << 16 | ord($BMPpixelData[$pixeldataoffset + 1]) << 8 | ord($BMPpixelData[$pixeldataoffset]);
$pixeldataoffset += 4;
}
while ($pixeldataoffset % 4 != 0) {
// lines are padded to nearest DWORD
++$pixeldataoffset;
}
}
break;
case 16:
// ?
break;
default:
$info['error'][] = 'Unknown bits-per-pixel value (' . $thisfile_bmp_header_raw['bits_per_pixel'] . ') - cannot read pixel data';
break;
}
break;
case 1:
// BI_RLE8 - http://msdn.microsoft.com/library/en-us/gdi/bitmaps_6x0u.asp
switch ($thisfile_bmp_header_raw['bits_per_pixel']) {
case 8:
$pixelcounter = 0;
while ($pixeldataoffset < strlen($BMPpixelData)) {
$firstbyte = Helper::LittleEndian2Int(substr($BMPpixelData, $pixeldataoffset++, 1));
$secondbyte = Helper::LittleEndian2Int(substr($BMPpixelData, $pixeldataoffset++, 1));
if ($firstbyte == 0) {
// escaped/absolute mode - the first byte of the pair can be set to zero to
// indicate an escape character that denotes the end of a line, the end of
// a bitmap, or a delta, depending on the value of the second byte.
switch ($secondbyte) {
case 0:
// end of line
// no need for special processing, just ignore
break;
case 1:
// end of bitmap
$pixeldataoffset = strlen($BMPpixelData);
// force to exit loop just in case
break;
case 2:
// delta - The 2 bytes following the escape contain unsigned values
// indicating the horizontal and vertical offsets of the next pixel
// from the current position.
$colincrement = Helper::LittleEndian2Int(substr($BMPpixelData, $pixeldataoffset++, 1));
$rowincrement = Helper::LittleEndian2Int(substr($BMPpixelData, $pixeldataoffset++, 1));
$col = $pixelcounter % $thisfile_bmp_header_raw['width'] + $colincrement;
$row = $thisfile_bmp_header_raw['height'] - 1 - ($pixelcounter - $col) / $thisfile_bmp_header_raw['width'] - $rowincrement;
$pixelcounter = $row * $thisfile_bmp_header_raw['width'] + $col;
break;
default:
// In absolute mode, the first byte is zero and the second byte is a
// value in the range 03H through FFH. The second byte represents the
// number of bytes that follow, each of which contains the color index
// of a single pixel. Each run must be aligned on a word boundary.
for ($i = 0; $i < $secondbyte; ++$i) {
$paletteindex = Helper::LittleEndian2Int(substr($BMPpixelData, $pixeldataoffset++, 1));
$col = $pixelcounter % $thisfile_bmp_header_raw['width'];
$row = $thisfile_bmp_header_raw['height'] - 1 - ($pixelcounter - $col) / $thisfile_bmp_header_raw['width'];
$thisfile_bmp['data'][$row][$col] = $thisfile_bmp['palette'][$paletteindex];
++$pixelcounter;
}
while ($pixeldataoffset % 2 != 0) {
// Each run must be aligned on a word boundary.
++$pixeldataoffset;
}
break;
}
} else {
// encoded mode - the first byte specifies the number of consecutive pixels
// to be drawn using the color index contained in the second byte.
for ($i = 0; $i < $firstbyte; ++$i) {
$col = $pixelcounter % $thisfile_bmp_header_raw['width'];
$row = $thisfile_bmp_header_raw['height'] - 1 - ($pixelcounter - $col) / $thisfile_bmp_header_raw['width'];
$thisfile_bmp['data'][$row][$col] = $thisfile_bmp['palette'][$secondbyte];
++$pixelcounter;
}
}
}
break;
default:
$info['error'][] = 'Unknown bits-per-pixel value (' . $thisfile_bmp_header_raw['bits_per_pixel'] . ') - cannot read pixel data';
break;
}
break;
case 2:
// BI_RLE4 - http://msdn.microsoft.com/library/en-us/gdi/bitmaps_6x0u.asp
switch ($thisfile_bmp_header_raw['bits_per_pixel']) {
case 4:
$pixelcounter = 0;
while ($pixeldataoffset < strlen($BMPpixelData)) {
$firstbyte = Helper::LittleEndian2Int(substr($BMPpixelData, $pixeldataoffset++, 1));
$secondbyte = Helper::LittleEndian2Int(substr($BMPpixelData, $pixeldataoffset++, 1));
if ($firstbyte == 0) {
// escaped/absolute mode - the first byte of the pair can be set to zero to
// indicate an escape character that denotes the end of a line, the end of
// a bitmap, or a delta, depending on the value of the second byte.
switch ($secondbyte) {
case 0:
// end of line
// no need for special processing, just ignore
break;
case 1:
// end of bitmap
$pixeldataoffset = strlen($BMPpixelData);
// force to exit loop just in case
break;
case 2:
// delta - The 2 bytes following the escape contain unsigned values
// indicating the horizontal and vertical offsets of the next pixel
// from the current position.
$colincrement = Helper::LittleEndian2Int(substr($BMPpixelData, $pixeldataoffset++, 1));
$rowincrement = Helper::LittleEndian2Int(substr($BMPpixelData, $pixeldataoffset++, 1));
$col = $pixelcounter % $thisfile_bmp_header_raw['width'] + $colincrement;
$row = $thisfile_bmp_header_raw['height'] - 1 - ($pixelcounter - $col) / $thisfile_bmp_header_raw['width'] - $rowincrement;
$pixelcounter = $row * $thisfile_bmp_header_raw['width'] + $col;
break;
default:
// In absolute mode, the first byte is zero. The second byte contains the number
// of color indexes that follow. Subsequent bytes contain color indexes in their
// high- and low-order 4 bits, one color index for each pixel. In absolute mode,
// each run must be aligned on a word boundary.
unset($paletteindexes);
for ($i = 0; $i < ceil($secondbyte / 2); ++$i) {
$paletteindexbyte = Helper::LittleEndian2Int(substr($BMPpixelData, $pixeldataoffset++, 1));
$paletteindexes[] = ($paletteindexbyte & 0xf0) >> 4;
$paletteindexes[] = $paletteindexbyte & 0xf;
}
while ($pixeldataoffset % 2 != 0) {
// Each run must be aligned on a word boundary.
++$pixeldataoffset;
}
foreach ($paletteindexes as $paletteindex) {
$col = $pixelcounter % $thisfile_bmp_header_raw['width'];
$row = $thisfile_bmp_header_raw['height'] - 1 - ($pixelcounter - $col) / $thisfile_bmp_header_raw['width'];
$thisfile_bmp['data'][$row][$col] = $thisfile_bmp['palette'][$paletteindex];
++$pixelcounter;
}
break;
}
} else {
// encoded mode - the first byte of the pair contains the number of pixels to be
// drawn using the color indexes in the second byte. The second byte contains two
// color indexes, one in its high-order 4 bits and one in its low-order 4 bits.
// The first of the pixels is drawn using the color specified by the high-order
// 4 bits, the second is drawn using the color in the low-order 4 bits, the third
// is drawn using the color in the high-order 4 bits, and so on, until all the
// pixels specified by the first byte have been drawn.
$paletteindexes[0] = ($secondbyte & 0xf0) >> 4;
$paletteindexes[1] = $secondbyte & 0xf;
for ($i = 0; $i < $firstbyte; ++$i) {
$col = $pixelcounter % $thisfile_bmp_header_raw['width'];
$row = $thisfile_bmp_header_raw['height'] - 1 - ($pixelcounter - $col) / $thisfile_bmp_header_raw['width'];
$thisfile_bmp['data'][$row][$col] = $thisfile_bmp['palette'][$paletteindexes[$i % 2]];
++$pixelcounter;
}
}
}
break;
default:
$info['error'][] = 'Unknown bits-per-pixel value (' . $thisfile_bmp_header_raw['bits_per_pixel'] . ') - cannot read pixel data';
break;
}
break;
case 3:
// BI_BITFIELDS
switch ($thisfile_bmp_header_raw['bits_per_pixel']) {
case 16:
case 32:
$redshift = 0;
$greenshift = 0;
$blueshift = 0;
while (($thisfile_bmp_header_raw['red_mask'] >> $redshift & 0x1) == 0) {
++$redshift;
}
while (($thisfile_bmp_header_raw['green_mask'] >> $greenshift & 0x1) == 0) {
++$greenshift;
}
while (($thisfile_bmp_header_raw['blue_mask'] >> $blueshift & 0x1) == 0) {
++$blueshift;
}
for ($row = $thisfile_bmp_header_raw['height'] - 1; $row >= 0; --$row) {
for ($col = 0; $col < $thisfile_bmp_header_raw['width']; ++$col) {
$pixelvalue = Helper::LittleEndian2Int(substr($BMPpixelData, $pixeldataoffset, $thisfile_bmp_header_raw['bits_per_pixel'] / 8));
$pixeldataoffset += $thisfile_bmp_header_raw['bits_per_pixel'] / 8;
$red = intval(round((($pixelvalue & $thisfile_bmp_header_raw['red_mask']) >> $redshift) / ($thisfile_bmp_header_raw['red_mask'] >> $redshift) * 255));
$green = intval(round((($pixelvalue & $thisfile_bmp_header_raw['green_mask']) >> $greenshift) / ($thisfile_bmp_header_raw['green_mask'] >> $greenshift) * 255));
$blue = intval(round((($pixelvalue & $thisfile_bmp_header_raw['blue_mask']) >> $blueshift) / ($thisfile_bmp_header_raw['blue_mask'] >> $blueshift) * 255));
$thisfile_bmp['data'][$row][$col] = $red << 16 | $green << 8 | $blue;
}
while ($pixeldataoffset % 4 != 0) {
// lines are padded to nearest DWORD
++$pixeldataoffset;
}
}
break;
default:
$info['error'][] = 'Unknown bits-per-pixel value (' . $thisfile_bmp_header_raw['bits_per_pixel'] . ') - cannot read pixel data';
break;
}
break;
default:
// unhandled compression type
$info['error'][] = 'Unknown/unhandled compression type value (' . $thisfile_bmp_header_raw['compression'] . ') - cannot decompress pixel data';
break;
}
}
return true;
}
/**
* @return bool
*/
public function analyze()
{
$info =& $this->getid3->info;
fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
while (true) {
$wavpackheader = fread($this->getid3->fp, 32);
if (ftell($this->getid3->fp) >= $info['avdataend']) {
break;
} elseif (feof($this->getid3->fp)) {
break;
} elseif (isset($info['wavpack']['blockheader']['total_samples']) && isset($info['wavpack']['blockheader']['block_samples']) && $info['wavpack']['blockheader']['total_samples'] > 0 && $info['wavpack']['blockheader']['block_samples'] > 0 && (!isset($info['wavpack']['riff_trailer_size']) || $info['wavpack']['riff_trailer_size'] <= 0) && (isset($info['wavpack']['config_flags']['md5_checksum']) && $info['wavpack']['config_flags']['md5_checksum'] === false || !empty($info['md5_data_source']))) {
break;
}
$blockheader_offset = ftell($this->getid3->fp) - 32;
$blockheader_magic = substr($wavpackheader, 0, 4);
$blockheader_size = Helper::LittleEndian2Int(substr($wavpackheader, 4, 4));
$magic = 'wvpk';
if ($blockheader_magic != $magic) {
$info['error'][] = 'Expecting "' . Helper::PrintHexBytes($magic) . '" at offset ' . $blockheader_offset . ', found "' . Helper::PrintHexBytes($blockheader_magic) . '"';
switch (isset($info['audio']['dataformat']) ? $info['audio']['dataformat'] : '') {
case 'wavpack':
case 'wvc':
break;
default:
unset($info['fileformat']);
unset($info['audio']);
unset($info['wavpack']);
break;
}
return false;
}
if (empty($info['wavpack']['blockheader']['block_samples']) || empty($info['wavpack']['blockheader']['total_samples']) || $info['wavpack']['blockheader']['block_samples'] <= 0 || $info['wavpack']['blockheader']['total_samples'] <= 0) {
// Also, it is possible that the first block might not have
// any samples (block_samples == 0) and in this case you should skip blocks
// until you find one with samples because the other information (like
// total_samples) are not guaranteed to be correct until (block_samples > 0)
// Finally, I have defined a format for files in which the length is not known
// (for example when raw files are created using pipes). In these cases
// total_samples will be -1 and you must seek to the final block to determine
// the total number of samples.
$info['audio']['dataformat'] = 'wavpack';
$info['fileformat'] = 'wavpack';
$info['audio']['lossless'] = true;
$info['audio']['bitrate_mode'] = 'vbr';
$info['wavpack']['blockheader']['offset'] = $blockheader_offset;
$info['wavpack']['blockheader']['magic'] = $blockheader_magic;
$info['wavpack']['blockheader']['size'] = $blockheader_size;
if ($info['wavpack']['blockheader']['size'] >= 0x100000) {
$info['error'][] = 'Expecting WavPack block size less than "0x100000", found "' . $info['wavpack']['blockheader']['size'] . '" at offset ' . $info['wavpack']['blockheader']['offset'];
switch (isset($info['audio']['dataformat']) ? $info['audio']['dataformat'] : '') {
case 'wavpack':
case 'wvc':
break;
default:
unset($info['fileformat']);
unset($info['audio']);
unset($info['wavpack']);
break;
}
return false;
}
$info['wavpack']['blockheader']['minor_version'] = ord($wavpackheader[8]);
$info['wavpack']['blockheader']['major_version'] = ord($wavpackheader[9]);
if ($info['wavpack']['blockheader']['major_version'] != 4 || $info['wavpack']['blockheader']['minor_version'] < 4 && $info['wavpack']['blockheader']['minor_version'] > 16) {
$info['error'][] = 'Expecting WavPack version between "4.2" and "4.16", found version "' . $info['wavpack']['blockheader']['major_version'] . '.' . $info['wavpack']['blockheader']['minor_version'] . '" at offset ' . $info['wavpack']['blockheader']['offset'];
switch (isset($info['audio']['dataformat']) ? $info['audio']['dataformat'] : '') {
case 'wavpack':
case 'wvc':
break;
default:
unset($info['fileformat']);
unset($info['audio']);
unset($info['wavpack']);
break;
}
return false;
}
$info['wavpack']['blockheader']['track_number'] = ord($wavpackheader[10]);
// unused
$info['wavpack']['blockheader']['index_number'] = ord($wavpackheader[11]);
// unused
$info['wavpack']['blockheader']['total_samples'] = Helper::LittleEndian2Int(substr($wavpackheader, 12, 4));
$info['wavpack']['blockheader']['block_index'] = Helper::LittleEndian2Int(substr($wavpackheader, 16, 4));
$info['wavpack']['blockheader']['block_samples'] = Helper::LittleEndian2Int(substr($wavpackheader, 20, 4));
$info['wavpack']['blockheader']['flags_raw'] = Helper::LittleEndian2Int(substr($wavpackheader, 24, 4));
$info['wavpack']['blockheader']['crc'] = Helper::LittleEndian2Int(substr($wavpackheader, 28, 4));
$info['wavpack']['blockheader']['flags']['bytes_per_sample'] = 1 + ($info['wavpack']['blockheader']['flags_raw'] & 0x3);
$info['wavpack']['blockheader']['flags']['mono'] = (bool) ($info['wavpack']['blockheader']['flags_raw'] & 0x4);
$info['wavpack']['blockheader']['flags']['hybrid'] = (bool) ($info['wavpack']['blockheader']['flags_raw'] & 0x8);
$info['wavpack']['blockheader']['flags']['joint_stereo'] = (bool) ($info['wavpack']['blockheader']['flags_raw'] & 0x10);
$info['wavpack']['blockheader']['flags']['cross_decorrelation'] = (bool) ($info['wavpack']['blockheader']['flags_raw'] & 0x20);
$info['wavpack']['blockheader']['flags']['hybrid_noiseshape'] = (bool) ($info['wavpack']['blockheader']['flags_raw'] & 0x40);
$info['wavpack']['blockheader']['flags']['ieee_32bit_float'] = (bool) ($info['wavpack']['blockheader']['flags_raw'] & 0x80);
$info['wavpack']['blockheader']['flags']['int_32bit'] = (bool) ($info['wavpack']['blockheader']['flags_raw'] & 0x100);
$info['wavpack']['blockheader']['flags']['hybrid_bitrate_noise'] = (bool) ($info['wavpack']['blockheader']['flags_raw'] & 0x200);
$info['wavpack']['blockheader']['flags']['hybrid_balance_noise'] = (bool) ($info['wavpack']['blockheader']['flags_raw'] & 0x400);
$info['wavpack']['blockheader']['flags']['multichannel_initial'] = (bool) ($info['wavpack']['blockheader']['flags_raw'] & 0x800);
$info['wavpack']['blockheader']['flags']['multichannel_final'] = (bool) ($info['wavpack']['blockheader']['flags_raw'] & 0x1000);
$info['audio']['lossless'] = !$info['wavpack']['blockheader']['flags']['hybrid'];
}
while (!feof($this->getid3->fp) && ftell($this->getid3->fp) < $blockheader_offset + $blockheader_size + 8) {
$metablock = array('offset' => ftell($this->getid3->fp));
$metablockheader = fread($this->getid3->fp, 2);
if (feof($this->getid3->fp)) {
break;
}
$metablock['id'] = ord($metablockheader[0]);
$metablock['function_id'] = $metablock['id'] & 0x3f;
$metablock['function_name'] = $this->WavPackMetablockNameLookup($metablock['function_id']);
// The 0x20 bit in the id of the meta subblocks (which is defined as
// ID_OPTIONAL_DATA) is a permanent part of the id. The idea is that
// if a decoder encounters an id that it does not know about, it uses
// that "ID_OPTIONAL_DATA" flag to determine what to do. If it is set
// then the decoder simply ignores the metadata, but if it is zero
// then the decoder should quit because it means that an understanding
// of the metadata is required to correctly decode the audio.
$metablock['non_decoder'] = (bool) ($metablock['id'] & 0x20);
$metablock['padded_data'] = (bool) ($metablock['id'] & 0x40);
$metablock['large_block'] = (bool) ($metablock['id'] & 0x80);
if ($metablock['large_block']) {
$metablockheader .= fread($this->getid3->fp, 2);
}
$metablock['size'] = Helper::LittleEndian2Int(substr($metablockheader, 1)) * 2;
// size is stored in words
$metablock['data'] = null;
if ($metablock['size'] > 0) {
switch ($metablock['function_id']) {
case 0x21:
// ID_RIFF_HEADER
// ID_RIFF_HEADER
case 0x22:
// ID_RIFF_TRAILER
// ID_RIFF_TRAILER
case 0x23:
// ID_REPLAY_GAIN
// ID_REPLAY_GAIN
case 0x24:
// ID_CUESHEET
// ID_CUESHEET
case 0x25:
// ID_CONFIG_BLOCK
// ID_CONFIG_BLOCK
case 0x26:
// ID_MD5_CHECKSUM
$metablock['data'] = fread($this->getid3->fp, $metablock['size']);
if ($metablock['padded_data']) {
// padded to the nearest even byte
--$metablock['size'];
$metablock['data'] = substr($metablock['data'], 0, -1);
}
break;
case 0x0:
// ID_DUMMY
// ID_DUMMY
case 0x1:
// ID_ENCODER_INFO
// ID_ENCODER_INFO
case 0x2:
// ID_DECORR_TERMS
// ID_DECORR_TERMS
case 0x3:
// ID_DECORR_WEIGHTS
// ID_DECORR_WEIGHTS
case 0x4:
// ID_DECORR_SAMPLES
// ID_DECORR_SAMPLES
case 0x5:
// ID_ENTROPY_VARS
// ID_ENTROPY_VARS
case 0x6:
// ID_HYBRID_PROFILE
// ID_HYBRID_PROFILE
case 0x7:
// ID_SHAPING_WEIGHTS
// ID_SHAPING_WEIGHTS
case 0x8:
// ID_FLOAT_INFO
// ID_FLOAT_INFO
case 0x9:
// ID_INT32_INFO
// ID_INT32_INFO
case 0xa:
// ID_WV_BITSTREAM
// ID_WV_BITSTREAM
case 0xb:
// ID_WVC_BITSTREAM
// ID_WVC_BITSTREAM
case 0xc:
// ID_WVX_BITSTREAM
// ID_WVX_BITSTREAM
case 0xd:
// ID_CHANNEL_INFO
fseek($this->getid3->fp, $metablock['offset'] + ($metablock['large_block'] ? 4 : 2) + $metablock['size'], SEEK_SET);
break;
default:
$info['warning'][] = 'Unexpected metablock type "0x' . str_pad(dechex($metablock['function_id']), 2, '0', STR_PAD_LEFT) . '" at offset ' . $metablock['offset'];
fseek($this->getid3->fp, $metablock['offset'] + ($metablock['large_block'] ? 4 : 2) + $metablock['size'], SEEK_SET);
break;
}
switch ($metablock['function_id']) {
case 0x21:
// ID_RIFF_HEADER
$original_wav_filesize = Helper::LittleEndian2Int(substr($metablock['data'], 4, 4));
$getid3_temp = new GetId3Core();
$getid3_temp->openfile($this->getid3->filename);
$getid3_riff = new Riff($getid3_temp);
$getid3_riff->ParseRIFFdata($metablock['data']);
$metablock['riff'] = $getid3_temp->info['riff'];
$info['audio']['sample_rate'] = $getid3_temp->info['riff']['raw']['fmt ']['nSamplesPerSec'];
unset($getid3_riff, $getid3_temp);
$metablock['riff']['original_filesize'] = $original_wav_filesize;
$info['wavpack']['riff_trailer_size'] = $original_wav_filesize - $metablock['riff']['WAVE']['data'][0]['size'] - $metablock['riff']['header_size'];
$info['playtime_seconds'] = $info['wavpack']['blockheader']['total_samples'] / $info['audio']['sample_rate'];
// Safe RIFF header in case there's a RIFF footer later
$metablockRIFFheader = $metablock['data'];
break;
case 0x22:
// ID_RIFF_TRAILER
$metablockRIFFfooter = $metablockRIFFheader . $metablock['data'];
$startoffset = $metablock['offset'] + ($metablock['large_block'] ? 4 : 2);
$getid3_temp = new GetId3Core();
$getid3_temp->openfile($this->getid3->filename);
$getid3_temp->info['avdataend'] = $info['avdataend'];
$getid3_temp->info['fileformat'] = 'riff';
$getid3_riff = new Riff($getid3_temp);
$metablock['riff'] = $getid3_riff->ParseRIFF($startoffset, $startoffset + $metablock['size']);
if (!empty($metablock['riff']['INFO'])) {
$getid3_riff->RIFFcommentsParse($metablock['riff']['INFO'], $metablock['comments']);
$info['tags']['riff'] = $metablock['comments'];
}
unset($getid3_temp, $getid3_riff);
break;
case 0x23:
// ID_REPLAY_GAIN
$info['warning'][] = 'WavPack "Replay Gain" contents not yet handled by GetId3Core() in metablock at offset ' . $metablock['offset'];
break;
case 0x24:
// ID_CUESHEET
$info['warning'][] = 'WavPack "Cuesheet" contents not yet handled by GetId3Core() in metablock at offset ' . $metablock['offset'];
break;
case 0x25:
// ID_CONFIG_BLOCK
$metablock['flags_raw'] = Helper::LittleEndian2Int(substr($metablock['data'], 0, 3));
$metablock['flags']['adobe_mode'] = (bool) ($metablock['flags_raw'] & 0x1);
// "adobe" mode for 32-bit floats
$metablock['flags']['fast_flag'] = (bool) ($metablock['flags_raw'] & 0x2);
// fast mode
$metablock['flags']['very_fast_flag'] = (bool) ($metablock['flags_raw'] & 0x4);
// double fast
$metablock['flags']['high_flag'] = (bool) ($metablock['flags_raw'] & 0x8);
// high quality mode
$metablock['flags']['very_high_flag'] = (bool) ($metablock['flags_raw'] & 0x10);
// double high (not used yet)
$metablock['flags']['bitrate_kbps'] = (bool) ($metablock['flags_raw'] & 0x20);
// bitrate is kbps, not bits / sample
$metablock['flags']['auto_shaping'] = (bool) ($metablock['flags_raw'] & 0x40);
// automatic noise shaping
$metablock['flags']['shape_override'] = (bool) ($metablock['flags_raw'] & 0x80);
// shaping mode specified
$metablock['flags']['joint_override'] = (bool) ($metablock['flags_raw'] & 0x100);
// joint-stereo mode specified
$metablock['flags']['copy_time'] = (bool) ($metablock['flags_raw'] & 0x200);
// copy file-time from source
$metablock['flags']['create_exe'] = (bool) ($metablock['flags_raw'] & 0x400);
// create executable
$metablock['flags']['create_wvc'] = (bool) ($metablock['flags_raw'] & 0x800);
// create correction file
$metablock['flags']['optimize_wvc'] = (bool) ($metablock['flags_raw'] & 0x1000);
// maximize bybrid compression
$metablock['flags']['quality_mode'] = (bool) ($metablock['flags_raw'] & 0x2000);
// psychoacoustic quality mode
$metablock['flags']['raw_flag'] = (bool) ($metablock['flags_raw'] & 0x4000);
// raw mode (not implemented yet)
$metablock['flags']['calc_noise'] = (bool) ($metablock['flags_raw'] & 0x8000);
// calc noise in hybrid mode
$metablock['flags']['lossy_mode'] = (bool) ($metablock['flags_raw'] & 0x10000);
// obsolete (for information)
$metablock['flags']['extra_mode'] = (bool) ($metablock['flags_raw'] & 0x20000);
// extra processing mode
$metablock['flags']['skip_wvx'] = (bool) ($metablock['flags_raw'] & 0x40000);
// no wvx stream w/ floats & big ints
$metablock['flags']['md5_checksum'] = (bool) ($metablock['flags_raw'] & 0x80000);
// compute & store MD5 signature
$metablock['flags']['quiet_mode'] = (bool) ($metablock['flags_raw'] & 0x100000);
// don't report progress %
$info['wavpack']['config_flags'] = $metablock['flags'];
$info['audio']['encoder_options'] = '';
if ($info['wavpack']['blockheader']['flags']['hybrid']) {
$info['audio']['encoder_options'] .= ' -b???';
}
$info['audio']['encoder_options'] .= $metablock['flags']['adobe_mode'] ? ' -a' : '';
$info['audio']['encoder_options'] .= $metablock['flags']['optimize_wvc'] ? ' -cc' : '';
$info['audio']['encoder_options'] .= $metablock['flags']['create_exe'] ? ' -e' : '';
$info['audio']['encoder_options'] .= $metablock['flags']['fast_flag'] ? ' -f' : '';
$info['audio']['encoder_options'] .= $metablock['flags']['joint_override'] ? ' -j?' : '';
$info['audio']['encoder_options'] .= $metablock['flags']['high_flag'] ? ' -h' : '';
$info['audio']['encoder_options'] .= $metablock['flags']['md5_checksum'] ? ' -m' : '';
$info['audio']['encoder_options'] .= $metablock['flags']['calc_noise'] ? ' -n' : '';
$info['audio']['encoder_options'] .= $metablock['flags']['shape_override'] ? ' -s?' : '';
$info['audio']['encoder_options'] .= $metablock['flags']['extra_mode'] ? ' -x?' : '';
if (!empty($info['audio']['encoder_options'])) {
$info['audio']['encoder_options'] = trim($info['audio']['encoder_options']);
} elseif (isset($info['audio']['encoder_options'])) {
unset($info['audio']['encoder_options']);
}
break;
case 0x26:
// ID_MD5_CHECKSUM
if (strlen($metablock['data']) == 16) {
$info['md5_data_source'] = strtolower(Helper::PrintHexBytes($metablock['data'], true, false, false));
} else {
$info['warning'][] = 'Expecting 16 bytes of WavPack "MD5 Checksum" in metablock at offset ' . $metablock['offset'] . ', but found ' . strlen($metablock['data']) . ' bytes';
}
break;
case 0x0:
// ID_DUMMY
// ID_DUMMY
case 0x1:
// ID_ENCODER_INFO
// ID_ENCODER_INFO
case 0x2:
// ID_DECORR_TERMS
// ID_DECORR_TERMS
case 0x3:
// ID_DECORR_WEIGHTS
// ID_DECORR_WEIGHTS
case 0x4:
// ID_DECORR_SAMPLES
// ID_DECORR_SAMPLES
case 0x5:
// ID_ENTROPY_VARS
// ID_ENTROPY_VARS
case 0x6:
// ID_HYBRID_PROFILE
// ID_HYBRID_PROFILE
case 0x7:
// ID_SHAPING_WEIGHTS
// ID_SHAPING_WEIGHTS
case 0x8:
// ID_FLOAT_INFO
// ID_FLOAT_INFO
case 0x9:
// ID_INT32_INFO
// ID_INT32_INFO
case 0xa:
// ID_WV_BITSTREAM
// ID_WV_BITSTREAM
case 0xb:
// ID_WVC_BITSTREAM
// ID_WVC_BITSTREAM
case 0xc:
// ID_WVX_BITSTREAM
// ID_WVX_BITSTREAM
case 0xd:
// ID_CHANNEL_INFO
unset($metablock);
break;
}
}
if (!empty($metablock)) {
$info['wavpack']['metablocks'][] = $metablock;
}
}
}
$info['audio']['encoder'] = 'WavPack v' . $info['wavpack']['blockheader']['major_version'] . '.' . str_pad($info['wavpack']['blockheader']['minor_version'], 2, '0', STR_PAD_LEFT);
$info['audio']['bits_per_sample'] = $info['wavpack']['blockheader']['flags']['bytes_per_sample'] * 8;
$info['audio']['channels'] = $info['wavpack']['blockheader']['flags']['mono'] ? 1 : 2;
if (!empty($info['playtime_seconds'])) {
$info['audio']['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / $info['playtime_seconds'];
} else {
$info['audio']['dataformat'] = 'wvc';
}
return true;
}
/**
* @param type $byteword
* @param type $signed
*
* @return type
*/
public function EitherEndian2Int($byteword, $signed = false)
{
if ($this->getid3->info['fileformat'] == 'riff') {
return Helper::LittleEndian2Int($byteword, $signed);
}
return Helper::BigEndian2Int($byteword, false, $signed);
}
