本文整理匯總了PHP中getid3_lib::LittleEndian2String方法的典型用法代碼示例。如果您正苦於以下問題：PHP getid3_lib::LittleEndian2String方法的具體用法？PHP getid3_lib::LittleEndian2String怎麽用？PHP getid3_lib::LittleEndian2String使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類getid3_lib的用法示例。
在下文中一共展示了getid3_lib::LittleEndian2String方法的10個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的PHP代碼示例。
示例1: ParseRIFFdata
function ParseRIFFdata(&$RIFFdata, &$ThisFileInfo)
{
if ($RIFFdata) {
$tempfile = tempnam('*', 'getID3');
$fp_temp = fopen($tempfile, "wb");
$RIFFdataLength = strlen($RIFFdata);
$NewLengthString = getid3_lib::LittleEndian2String($RIFFdataLength, 4);
for ($i = 0; $i < 4; $i++) {
$RIFFdata[$i + 4] = $NewLengthString[$i];
}
fwrite($fp_temp, $RIFFdata);
fclose($fp_temp);
$fp_temp = fopen($tempfile, "rb");
$dummy = array('filesize' => $RIFFdataLength, 'filenamepath' => $ThisFileInfo['filenamepath'], 'tags' => $ThisFileInfo['tags'], 'avdataoffset' => 0, 'avdataend' => $RIFFdataLength, 'warning' => $ThisFileInfo['warning'], 'error' => $ThisFileInfo['error'], 'comments' => $ThisFileInfo['comments'], 'audio' => isset($ThisFileInfo['audio']) ? $ThisFileInfo['audio'] : array(), 'video' => isset($ThisFileInfo['video']) ? $ThisFileInfo['video'] : array());
$riff = new getid3_riff($fp_temp, $dummy);
$ThisFileInfo['riff'] = $dummy['riff'];
$ThisFileInfo['warning'] = $dummy['warning'];
$ThisFileInfo['error'] = $dummy['error'];
$ThisFileInfo['tags'] = $dummy['tags'];
$ThisFileInfo['comments'] = $dummy['comments'];
fclose($fp_temp);
unlink($tempfile);
return true;
}
return false;
}示例2: Analyze
public function Analyze()
{
$getid3 = $this->getid3;
$getid3->include_module('audio-video.riff');
fseek($getid3->fp, $getid3->info['avdataoffset'], SEEK_SET);
$raw_data = fread($getid3->fp, getid3::FREAD_BUFFER_SIZE);
$getid3->info['fileformat'] = 'la';
$getid3->info['audio']['dataformat'] = 'la';
$getid3->info['audio']['lossless'] = true;
$getid3->info['la']['version_major'] = (int) $raw_data[2];
$getid3->info['la']['version_minor'] = (int) $raw_data[3];
$getid3->info['la']['version'] = (double) $getid3->info['la']['version_major'] + $getid3->info['la']['version_minor'] / 10;
$getid3->info['la']['uncompressed_size'] = getid3_lib::LittleEndian2Int(substr($raw_data, 4, 4));
$wave_chunk = substr($raw_data, 8, 4);
if ($wave_chunk !== 'WAVE') {
throw new getid3_exception('Expected "WAVE" (' . getid3_lib::PrintHexBytes('WAVE') . ') at offset 8, found "' . $wave_chunk . '" (' . getid3_lib::PrintHexBytes($wave_chunk) . ') instead.');
}
$offset = 12;
$getid3->info['la']['fmt_size'] = 24;
if ($getid3->info['la']['version'] >= 0.3) {
$getid3->info['la']['fmt_size'] = getid3_lib::LittleEndian2Int(substr($raw_data, $offset, 4));
$getid3->info['la']['header_size'] = 49 + $getid3->info['la']['fmt_size'] - 24;
$offset += 4;
} else {
// version 0.2 didn't support additional data blocks
$getid3->info['la']['header_size'] = 41;
}
$fmt_chunk = substr($raw_data, $offset, 4);
if ($fmt_chunk !== 'fmt ') {
throw new getid3_exception('Expected "fmt " (' . getid3_lib::PrintHexBytes('fmt ') . ') at offset ' . $offset . ', found "' . $fmt_chunk . '" (' . getid3_lib::PrintHexBytes($fmt_chunk) . ') instead.');
}
$offset += 4;
$fmt_size = getid3_lib::LittleEndian2Int(substr($raw_data, $offset, 4));
$offset += 4;
$getid3->info['la']['raw']['format'] = getid3_lib::LittleEndian2Int(substr($raw_data, $offset, 2));
$offset += 2;
getid3_lib::ReadSequence('LittleEndian2Int', $getid3->info['la'], $raw_data, $offset, array('channels' => 2, 'sample_rate' => 4, 'bytes_per_second' => 4, 'bytes_per_sample' => 2, 'bits_per_sample' => 2, 'samples' => 4));
$offset += 18;
$getid3->info['la']['raw']['flags'] = getid3_lib::LittleEndian2Int($raw_data[$offset++]);
$getid3->info['la']['flags']['seekable'] = (bool) ($getid3->info['la']['raw']['flags'] & 0x1);
if ($getid3->info['la']['version'] >= 0.4) {
$getid3->info['la']['flags']['high_compression'] = (bool) ($getid3->info['la']['raw']['flags'] & 0x2);
}
$getid3->info['la']['original_crc'] = getid3_lib::LittleEndian2Int(substr($raw_data, $offset, 4));
$offset += 4;
// mikeØbevin*de
// Basically, the blocksize/seekevery are 61440/19 in La0.4 and 73728/16
// in earlier versions. A seekpoint is added every blocksize * seekevery
// samples, so 4 * int(totalSamples / (blockSize * seekEvery)) should
// give the number of bytes used for the seekpoints. Of course, if seeking
// is disabled, there are no seekpoints stored.
if ($getid3->info['la']['version'] >= 0.4) {
$getid3->info['la']['blocksize'] = 61440;
$getid3->info['la']['seekevery'] = 19;
} else {
$getid3->info['la']['blocksize'] = 73728;
$getid3->info['la']['seekevery'] = 16;
}
$getid3->info['la']['seekpoint_count'] = 0;
if ($getid3->info['la']['flags']['seekable']) {
$getid3->info['la']['seekpoint_count'] = floor($getid3->info['la']['samples'] / ($getid3->info['la']['blocksize'] * $getid3->info['la']['seekevery']));
for ($i = 0; $i < $getid3->info['la']['seekpoint_count']; $i++) {
$getid3->info['la']['seekpoints'][] = getid3_lib::LittleEndian2Int(substr($raw_data, $offset, 4));
$offset += 4;
}
}
if ($getid3->info['la']['version'] >= 0.3) {
// Following the main header information, the program outputs all of the
// seekpoints. Following these is what I called the 'footer start',
// i.e. the position immediately after the La audio data is finished.
$getid3->info['la']['footerstart'] = getid3_lib::LittleEndian2Int(substr($raw_data, $offset, 4));
$offset += 4;
if ($getid3->info['la']['footerstart'] > $getid3->info['filesize']) {
$getid3->warning('FooterStart value points to offset ' . $getid3->info['la']['footerstart'] . ' which is beyond end-of-file (' . $getid3->info['filesize'] . ')');
$getid3->info['la']['footerstart'] = $getid3->info['filesize'];
}
} else {
// La v0.2 didn't have FooterStart value
$getid3->info['la']['footerstart'] = $getid3->info['avdataend'];
}
if ($getid3->info['la']['footerstart'] < $getid3->info['avdataend']) {
// Create riff header
$riff_data = 'WAVE';
if ($getid3->info['la']['version'] == 0.2) {
$riff_data .= substr($raw_data, 12, 24);
} else {
$riff_data .= substr($raw_data, 16, 24);
}
if ($getid3->info['la']['footerstart'] < $getid3->info['avdataend']) {
fseek($getid3->fp, $getid3->info['la']['footerstart'], SEEK_SET);
$riff_data .= fread($getid3->fp, $getid3->info['avdataend'] - $getid3->info['la']['footerstart']);
}
$riff_data = 'RIFF' . getid3_lib::LittleEndian2String(strlen($riff_data), 4, false) . $riff_data;
// Clone getid3 - messing with offsets - better safe than sorry
$clone = clone $getid3;
// Analyze clone by string
$riff = new getid3_riff($clone);
$riff->AnalyzeString($riff_data);
// Import from clone and destroy
$getid3->info['riff'] = $clone->info['riff'];
//.........這裏部分代碼省略.........
示例3: iconv_fallback_utf8_utf16le
static function iconv_fallback_utf8_utf16le($string, $bom = false)
{
$newcharstring = '';
if ($bom) {
$newcharstring .= "ÿþ";
}
$offset = 0;
$stringlength = strlen($string);
while ($offset < $stringlength) {
if ((ord($string[$offset]) | 0x7) == 0xf7) {
// 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb
$charval = (ord($string[$offset + 0]) & 0x7) << 18 & (ord($string[$offset + 1]) & 0x3f) << 12 & (ord($string[$offset + 2]) & 0x3f) << 6 & (ord($string[$offset + 3]) & 0x3f);
$offset += 4;
} elseif ((ord($string[$offset]) | 0xf) == 0xef) {
// 1110bbbb 10bbbbbb 10bbbbbb
$charval = (ord($string[$offset + 0]) & 0xf) << 12 & (ord($string[$offset + 1]) & 0x3f) << 6 & (ord($string[$offset + 2]) & 0x3f);
$offset += 3;
} elseif ((ord($string[$offset]) | 0x1f) == 0xdf) {
// 110bbbbb 10bbbbbb
$charval = (ord($string[$offset + 0]) & 0x1f) << 6 & (ord($string[$offset + 1]) & 0x3f);
$offset += 2;
} elseif ((ord($string[$offset]) | 0x7f) == 0x7f) {
// 0bbbbbbb
$charval = ord($string[$offset]);
$offset += 1;
} else {
// error? maybe throw some warning here?
$charval = false;
$offset += 1;
}
if ($charval !== false) {
$newcharstring .= $charval < 65536 ? getid3_lib::LittleEndian2String($charval, 2) : '?' . "";
}
}
return $newcharstring;
}示例4: GenerateAPEtagHeaderFooter
function GenerateAPEtagHeaderFooter(&$items, $isheader = false)
{
$tagdatalength = 0;
foreach ($items as $itemdata) {
$tagdatalength += strlen($itemdata);
}
$APEheader = 'APETAGEX';
$APEheader .= getid3_lib::LittleEndian2String(2000, 4);
$APEheader .= getid3_lib::LittleEndian2String(32 + $tagdatalength, 4);
$APEheader .= getid3_lib::LittleEndian2String(count($items), 4);
$APEheader .= $this->GenerateAPEtagFlags(true, true, $isheader, 0, false);
$APEheader .= str_repeat("", 8);
return $APEheader;
}示例5: ParseRIFFdata
public function ParseRIFFdata(&$RIFFdata)
{
$info =& $this->getid3->info;
if ($RIFFdata) {
$tempfile = tempnam(GETID3_TEMP_DIR, 'getID3');
$fp_temp = fopen($tempfile, 'wb');
$RIFFdataLength = strlen($RIFFdata);
$NewLengthString = getid3_lib::LittleEndian2String($RIFFdataLength, 4);
for ($i = 0; $i < 4; $i++) {
$RIFFdata[$i + 4] = $NewLengthString[$i];
}
fwrite($fp_temp, $RIFFdata);
fclose($fp_temp);
$getid3_temp = new getID3();
$getid3_temp->openfile($tempfile);
$getid3_temp->info['filesize'] = $RIFFdataLength;
$getid3_temp->info['filenamepath'] = $info['filenamepath'];
$getid3_temp->info['tags'] = $info['tags'];
$getid3_temp->info['warning'] = $info['warning'];
$getid3_temp->info['error'] = $info['error'];
$getid3_temp->info['comments'] = $info['comments'];
$getid3_temp->info['audio'] = isset($info['audio']) ? $info['audio'] : array();
$getid3_temp->info['video'] = isset($info['video']) ? $info['video'] : array();
$getid3_riff = new getid3_riff($getid3_temp);
$getid3_riff->Analyze();
$info['riff'] = $getid3_temp->info['riff'];
$info['warning'] = $getid3_temp->info['warning'];
$info['error'] = $getid3_temp->info['error'];
$info['tags'] = $getid3_temp->info['tags'];
$info['comments'] = $getid3_temp->info['comments'];
unset($getid3_riff, $getid3_temp);
unlink($tempfile);
}
return false;
}示例6: generate_header_footer
protected function generate_header_footer(&$items, $is_header = false)
{
$comments_length = 0;
foreach ($items as $item_data) {
$comments_length += strlen($item_data);
}
$header = 'APETAGEX';
$header .= getid3_lib::LittleEndian2String(2000, 4);
$header .= getid3_lib::LittleEndian2String(32 + $comments_length, 4);
$header .= getid3_lib::LittleEndian2String(count($items), 4);
$header .= $this->generate_flags(true, true, $is_header, 0, false);
$header .= str_repeat("", 8);
return $header;
}示例7: getid3_la
//.........這裏部分代碼省略.........
if ($ThisFileInfo['la']['version'] >= 0.4) {
$ThisFileInfo['la']['flags']['high_compression'] = (bool) ($ThisFileInfo['la']['raw']['flags'] & 0x2);
}
$ThisFileInfo['la']['original_crc'] = getid3_lib::LittleEndian2Int(substr($rawdata, $offset, 4));
$offset += 4;
// mikeØbevin*de
// Basically, the blocksize/seekevery are 61440/19 in La0.4 and 73728/16
// in earlier versions. A seekpoint is added every blocksize * seekevery
// samples, so 4 * int(totalSamples / (blockSize * seekEvery)) should
// give the number of bytes used for the seekpoints. Of course, if seeking
// is disabled, there are no seekpoints stored.
if ($ThisFileInfo['la']['version'] >= 0.4) {
$ThisFileInfo['la']['blocksize'] = 61440;
$ThisFileInfo['la']['seekevery'] = 19;
} else {
$ThisFileInfo['la']['blocksize'] = 73728;
$ThisFileInfo['la']['seekevery'] = 16;
}
$ThisFileInfo['la']['seekpoint_count'] = 0;
if ($ThisFileInfo['la']['flags']['seekable']) {
$ThisFileInfo['la']['seekpoint_count'] = floor($ThisFileInfo['la']['samples'] / ($ThisFileInfo['la']['blocksize'] * $ThisFileInfo['la']['seekevery']));
for ($i = 0; $i < $ThisFileInfo['la']['seekpoint_count']; $i++) {
$ThisFileInfo['la']['seekpoints'][] = getid3_lib::LittleEndian2Int(substr($rawdata, $offset, 4));
$offset += 4;
}
}
if ($ThisFileInfo['la']['version'] >= 0.3) {
// Following the main header information, the program outputs all of the
// seekpoints. Following these is what I called the 'footer start',
// i.e. the position immediately after the La audio data is finished.
$ThisFileInfo['la']['footerstart'] = getid3_lib::LittleEndian2Int(substr($rawdata, $offset, 4));
$offset += 4;
if ($ThisFileInfo['la']['footerstart'] > $ThisFileInfo['filesize']) {
$ThisFileInfo['warning'][] = 'FooterStart value points to offset ' . $ThisFileInfo['la']['footerstart'] . ' which is beyond end-of-file (' . $ThisFileInfo['filesize'] . ')';
$ThisFileInfo['la']['footerstart'] = $ThisFileInfo['filesize'];
}
} else {
// La v0.2 didn't have FooterStart value
$ThisFileInfo['la']['footerstart'] = $ThisFileInfo['avdataend'];
}
if ($ThisFileInfo['la']['footerstart'] < $ThisFileInfo['avdataend']) {
if ($RIFFtempfilename = tempnam('*', 'id3')) {
if ($RIFF_fp = fopen($RIFFtempfilename, 'w+b')) {
$RIFFdata = 'WAVE';
if ($ThisFileInfo['la']['version'] == 0.2) {
$RIFFdata .= substr($rawdata, 12, 24);
} else {
$RIFFdata .= substr($rawdata, 16, 24);
}
if ($ThisFileInfo['la']['footerstart'] < $ThisFileInfo['avdataend']) {
fseek($fd, $ThisFileInfo['la']['footerstart'], SEEK_SET);
$RIFFdata .= fread($fd, $ThisFileInfo['avdataend'] - $ThisFileInfo['la']['footerstart']);
}
$RIFFdata = 'RIFF' . getid3_lib::LittleEndian2String(strlen($RIFFdata), 4, false) . $RIFFdata;
fwrite($RIFF_fp, $RIFFdata, strlen($RIFFdata));
$dummy = $ThisFileInfo;
$dummy['filesize'] = strlen($RIFFdata);
$dummy['avdataoffset'] = 0;
$dummy['avdataend'] = $dummy['filesize'];
$riff = new getid3_riff($RIFF_fp, $dummy);
if (empty($dummy['error'])) {
$ThisFileInfo['riff'] = $dummy['riff'];
} else {
$ThisFileInfo['warning'][] = 'Error parsing RIFF portion of La file: ' . implode($dummy['error']);
}
unset($riff);
unset($dummy);
fclose($RIFF_fp);
}
unlink($RIFFtempfilename);
}
}
// $ThisFileInfo['avdataoffset'] should be zero to begin with, but just in case it's not, include the addition anyway
$ThisFileInfo['avdataend'] = $ThisFileInfo['avdataoffset'] + $ThisFileInfo['la']['footerstart'];
$ThisFileInfo['avdataoffset'] = $ThisFileInfo['avdataoffset'] + $offset;
//$ThisFileInfo['la']['codec'] = RIFFwFormatTagLookup($ThisFileInfo['la']['raw']['format']);
$ThisFileInfo['la']['compression_ratio'] = (double) (($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) / $ThisFileInfo['la']['uncompressed_size']);
$ThisFileInfo['playtime_seconds'] = (double) ($ThisFileInfo['la']['samples'] / $ThisFileInfo['la']['sample_rate']) / $ThisFileInfo['la']['channels'];
if ($ThisFileInfo['playtime_seconds'] == 0) {
$ThisFileInfo['error'][] = 'Corrupt LA file: playtime_seconds == zero';
return false;
}
$ThisFileInfo['audio']['bitrate'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) * 8 / $ThisFileInfo['playtime_seconds'];
//$ThisFileInfo['audio']['codec'] = $ThisFileInfo['la']['codec'];
$ThisFileInfo['audio']['bits_per_sample'] = $ThisFileInfo['la']['bits_per_sample'];
break;
default:
if (substr($rawdata, $offset, 2) == 'LA') {
$ThisFileInfo['error'][] = 'This version of getID3() (v' . GETID3_VERSION . ') doesn\'t support LA version ' . substr($rawdata, $offset + 2, 1) . '.' . substr($rawdata, $offset + 3, 1) . ' which this appears to be - check http://getid3.sourceforge.net for updates.';
} else {
$ThisFileInfo['error'][] = 'Not a LA (Lossless-Audio) file';
}
return false;
break;
}
$ThisFileInfo['audio']['channels'] = $ThisFileInfo['la']['channels'];
$ThisFileInfo['audio']['sample_rate'] = (int) $ThisFileInfo['la']['sample_rate'];
$ThisFileInfo['audio']['encoder'] = 'LA v' . $ThisFileInfo['la']['version'];
return true;
}示例8: iconv_fallback_utf8_utf16le
function iconv_fallback_utf8_utf16le($string, $bom=false) {
$newcharstring = '';
if ($bom) {
$newcharstring .= "\xFF\xFE";
}
$offset = 0;
$stringlength = strlen($string);
while ($offset < $stringlength) {
if ((ord($string{$offset}) | 0x07) == 0xF7) {
// 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb
$charval = ((ord($string{($offset + 0)}) & 0x07) << 18) &
((ord($string{($offset + 1)}) & 0x3F) << 12) &
((ord($string{($offset + 2)}) & 0x3F) << 6) &
(ord($string{($offset + 3)}) & 0x3F);
$offset += 4;
} elseif ((ord($string{$offset}) | 0x0F) == 0xEF) {
// 1110bbbb 10bbbbbb 10bbbbbb
$charval = ((ord($string{($offset + 0)}) & 0x0F) << 12) &
((ord($string{($offset + 1)}) & 0x3F) << 6) &
(ord($string{($offset + 2)}) & 0x3F);
$offset += 3;
} elseif ((ord($string{$offset}) | 0x1F) == 0xDF) {
// 110bbbbb 10bbbbbb
$charval = ((ord($string{($offset + 0)}) & 0x1F) << 6) &
(ord($string{($offset + 1)}) & 0x3F);
$offset += 2;
} elseif ((ord($string{$offset}) | 0x7F) == 0x7F) {
// 0bbbbbbb
$charval = ord($string{$offset});
$offset += 1;
} else {
// error? maybe throw some warning here?
$charval = false;
$offset += 1;
}
if ($charval !== false) {
$newcharstring .= (($charval < 65536) ? getid3_lib::LittleEndian2String($charval, 2) : '?'."\x00");
}
}
return $newcharstring;
}示例9: AnalyzeString
public function AnalyzeString(&$string)
{
// Rewrite header_size in header
$new_header_size = getid3_lib::LittleEndian2String(strlen($string), 4);
for ($i = 0; $i < 4; $i++) {
$string[$i + 4] = $new_header_size[$i];
}
return parent::AnalyzeString($string);
}示例10: ParseRIFFdata
function ParseRIFFdata(&$RIFFdata, &$ThisFileInfo)
{
if ($RIFFdata) {
if ($fp_temp = tmpfile()) {
$RIFFdataLength = strlen($RIFFdata);
$NewLengthString = getid3_lib::LittleEndian2String($RIFFdataLength, 4);
for ($i = 0; $i < 4; $i++) {
$RIFFdata[$i + 4] = $NewLengthString[$i];
}
fwrite($fp_temp, $RIFFdata);
$dummy = array('filesize' => $RIFFdataLength, 'filenamepath' => $ThisFileInfo['filenamepath'], 'tags' => $ThisFileInfo['tags'], 'avdataoffset' => 0, 'avdataend' => $RIFFdataLength, 'warning' => $ThisFileInfo['warning'], 'error' => $ThisFileInfo['error'], 'comments' => $ThisFileInfo['comments'], 'audio' => isset($ThisFileInfo['audio']) ? $ThisFileInfo['audio'] : array(), 'video' => isset($ThisFileInfo['video']) ? $ThisFileInfo['video'] : array());
$riff = new getid3_riff($fp_temp, $dummy);
$ThisFileInfo['riff'] = $dummy['riff'];
$ThisFileInfo['warning'] = $dummy['warning'];
$ThisFileInfo['error'] = $dummy['error'];
$ThisFileInfo['tags'] = $dummy['tags'];
$ThisFileInfo['comments'] = $dummy['comments'];
fclose($fp_temp);
return true;
} else {
$ThisFileInfo['error'][] = 'Error calling tmpfile() to parse OptimFROG RIFF header';
}
}
return false;
}