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/home/tahkoom/public_html/wp-includes/ID3/module.audio.ac3.php
<?php
/////////////////////////////////////////////////////////////////
/// getID3() by James Heinrich <info@getid3.org> //
// available at https://github.com/JamesHeinrich/getID3 //
// or https://www.getid3.org //
// or http://getid3.sourceforge.net //
// see readme.txt for more details //
/////////////////////////////////////////////////////////////////
// //
// module.audio.ac3.php //
// module for analyzing AC-3 (aka Dolby Digital) audio files //
// dependencies: NONE //
// ///
/////////////////////////////////////////////////////////////////
if (!defined('GETID3_INCLUDEPATH')) { // prevent path-exposing attacks that access modules directly on public webservers
exit;
}
class getid3_ac3 extends getid3_handler
{
/**
* @var array
*/
private $AC3header = array();
/**
* @var int
*/
private $BSIoffset = 0;
const syncword = 0x0B77;
/**
* @return bool
*/
public function Analyze() {
$info = &$this->getid3->info;
///AH
$info['ac3']['raw']['bsi'] = array();
$thisfile_ac3 = &$info['ac3'];
$thisfile_ac3_raw = &$thisfile_ac3['raw'];
$thisfile_ac3_raw_bsi = &$thisfile_ac3_raw['bsi'];
// http://www.atsc.org/standards/a_52a.pdf
$info['fileformat'] = 'ac3';
// An AC-3 serial coded audio bit stream is made up of a sequence of synchronization frames
// Each synchronization frame contains 6 coded audio blocks (AB), each of which represent 256
// new audio samples per channel. A synchronization information (SI) header at the beginning
// of each frame contains information needed to acquire and maintain synchronization. A
// bit stream information (BSI) header follows SI, and contains parameters describing the coded
// audio service. The coded audio blocks may be followed by an auxiliary data (Aux) field. At the
// end of each frame is an error check field that includes a CRC word for error detection. An
// additional CRC word is located in the SI header, the use of which, by a decoder, is optional.
//
// syncinfo() | bsi() | AB0 | AB1 | AB2 | AB3 | AB4 | AB5 | Aux | CRC
// syncinfo() {
// syncword 16
// crc1 16
// fscod 2
// frmsizecod 6
// } /* end of syncinfo */
$this->fseek($info['avdataoffset']);
$tempAC3header = $this->fread(100); // should be enough to cover all data, there are some variable-length fields...?
$this->AC3header['syncinfo'] = getid3_lib::BigEndian2Int(substr($tempAC3header, 0, 2));
$this->AC3header['bsi'] = getid3_lib::BigEndian2Bin(substr($tempAC3header, 2));
$thisfile_ac3_raw_bsi['bsid'] = (getid3_lib::LittleEndian2Int(substr($tempAC3header, 5, 1)) & 0xF8) >> 3; // AC3 and E-AC3 put the "bsid" version identifier in the same place, but unfortnately the 4 bytes between the syncword and the version identifier are interpreted differently, so grab it here so the following code structure can make sense
unset($tempAC3header);
if ($this->AC3header['syncinfo'] !== self::syncword) {
if (!$this->isDependencyFor('matroska')) {
unset($info['fileformat'], $info['ac3']);
return $this->error('Expecting "'.dechex(self::syncword).'" at offset '.$info['avdataoffset'].', found "'.dechex($this->AC3header['syncinfo']).'"');
}
}
$info['audio']['dataformat'] = 'ac3';
$info['audio']['bitrate_mode'] = 'cbr';
$info['audio']['lossless'] = false;
if ($thisfile_ac3_raw_bsi['bsid'] <= 8) {
$thisfile_ac3_raw_bsi['crc1'] = getid3_lib::Bin2Dec($this->readHeaderBSI(16));
$thisfile_ac3_raw_bsi['fscod'] = $this->readHeaderBSI(2); // 5.4.1.3
$thisfile_ac3_raw_bsi['frmsizecod'] = $this->readHeaderBSI(6); // 5.4.1.4
if ($thisfile_ac3_raw_bsi['frmsizecod'] > 37) { // binary: 100101 - see Table 5.18 Frame Size Code Table (1 word = 16 bits)
$this->warning('Unexpected ac3.bsi.frmsizecod value: '.$thisfile_ac3_raw_bsi['frmsizecod'].', bitrate not set correctly');
}
$thisfile_ac3_raw_bsi['bsid'] = $this->readHeaderBSI(5); // we already know this from pre-parsing the version identifier, but re-read it to let the bitstream flow as intended
$thisfile_ac3_raw_bsi['bsmod'] = $this->readHeaderBSI(3);
$thisfile_ac3_raw_bsi['acmod'] = $this->readHeaderBSI(3);
if ($thisfile_ac3_raw_bsi['acmod'] & 0x01) {
// If the lsb of acmod is a 1, center channel is in use and cmixlev follows in the bit stream.
$thisfile_ac3_raw_bsi['cmixlev'] = $this->readHeaderBSI(2);
$thisfile_ac3['center_mix_level'] = self::centerMixLevelLookup($thisfile_ac3_raw_bsi['cmixlev']);
}
if ($thisfile_ac3_raw_bsi['acmod'] & 0x04) {
// If the msb of acmod is a 1, surround channels are in use and surmixlev follows in the bit stream.
$thisfile_ac3_raw_bsi['surmixlev'] = $this->readHeaderBSI(2);
$thisfile_ac3['surround_mix_level'] = self::surroundMixLevelLookup($thisfile_ac3_raw_bsi['surmixlev']);
}
if ($thisfile_ac3_raw_bsi['acmod'] == 0x02) {
// When operating in the two channel mode, this 2-bit code indicates whether or not the program has been encoded in Dolby Surround.
$thisfile_ac3_raw_bsi['dsurmod'] = $this->readHeaderBSI(2);
$thisfile_ac3['dolby_surround_mode'] = self::dolbySurroundModeLookup($thisfile_ac3_raw_bsi['dsurmod']);
}
$thisfile_ac3_raw_bsi['flags']['lfeon'] = (bool) $this->readHeaderBSI(1);
// This indicates how far the average dialogue level is below digital 100 percent. Valid values are 1-31.
// The value of 0 is reserved. The values of 1 to 31 are interpreted as -1 dB to -31 dB with respect to digital 100 percent.
$thisfile_ac3_raw_bsi['dialnorm'] = $this->readHeaderBSI(5); // 5.4.2.8 dialnorm: Dialogue Normalization, 5 Bits
$thisfile_ac3_raw_bsi['flags']['compr'] = (bool) $this->readHeaderBSI(1); // 5.4.2.9 compre: Compression Gain Word Exists, 1 Bit
if ($thisfile_ac3_raw_bsi['flags']['compr']) {
$thisfile_ac3_raw_bsi['compr'] = $this->readHeaderBSI(8); // 5.4.2.10 compr: Compression Gain Word, 8 Bits
$thisfile_ac3['heavy_compression'] = self::heavyCompression($thisfile_ac3_raw_bsi['compr']);
}
$thisfile_ac3_raw_bsi['flags']['langcod'] = (bool) $this->readHeaderBSI(1); // 5.4.2.11 langcode: Language Code Exists, 1 Bit
if ($thisfile_ac3_raw_bsi['flags']['langcod']) {
$thisfile_ac3_raw_bsi['langcod'] = $this->readHeaderBSI(8); // 5.4.2.12 langcod: Language Code, 8 Bits
}
$thisfile_ac3_raw_bsi['flags']['audprodinfo'] = (bool) $this->readHeaderBSI(1); // 5.4.2.13 audprodie: Audio Production Information Exists, 1 Bit
if ($thisfile_ac3_raw_bsi['flags']['audprodinfo']) {
$thisfile_ac3_raw_bsi['mixlevel'] = $this->readHeaderBSI(5); // 5.4.2.14 mixlevel: Mixing Level, 5 Bits
$thisfile_ac3_raw_bsi['roomtyp'] = $this->readHeaderBSI(2); // 5.4.2.15 roomtyp: Room Type, 2 Bits
$thisfile_ac3['mixing_level'] = (80 + $thisfile_ac3_raw_bsi['mixlevel']).'dB';
$thisfile_ac3['room_type'] = self::roomTypeLookup($thisfile_ac3_raw_bsi['roomtyp']);
}
$thisfile_ac3_raw_bsi['dialnorm2'] = $this->readHeaderBSI(5); // 5.4.2.16 dialnorm2: Dialogue Normalization, ch2, 5 Bits
$thisfile_ac3['dialogue_normalization2'] = '-'.$thisfile_ac3_raw_bsi['dialnorm2'].'dB'; // This indicates how far the average dialogue level is below digital 100 percent. Valid values are 1-31. The value of 0 is reserved. The values of 1 to 31 are interpreted as -1 dB to -31 dB with respect to digital 100 percent.
$thisfile_ac3_raw_bsi['flags']['compr2'] = (bool) $this->readHeaderBSI(1); // 5.4.2.17 compr2e: Compression Gain Word Exists, ch2, 1 Bit
if ($thisfile_ac3_raw_bsi['flags']['compr2']) {
$thisfile_ac3_raw_bsi['compr2'] = $this->readHeaderBSI(8); // 5.4.2.18 compr2: Compression Gain Word, ch2, 8 Bits
$thisfile_ac3['heavy_compression2'] = self::heavyCompression($thisfile_ac3_raw_bsi['compr2']);
}
$thisfile_ac3_raw_bsi['flags']['langcod2'] = (bool) $this->readHeaderBSI(1); // 5.4.2.19 langcod2e: Language Code Exists, ch2, 1 Bit
if ($thisfile_ac3_raw_bsi['flags']['langcod2']) {
$thisfile_ac3_raw_bsi['langcod2'] = $this->readHeaderBSI(8); // 5.4.2.20 langcod2: Language Code, ch2, 8 Bits
}
$thisfile_ac3_raw_bsi['flags']['audprodinfo2'] = (bool) $this->readHeaderBSI(1); // 5.4.2.21 audprodi2e: Audio Production Information Exists, ch2, 1 Bit
if ($thisfile_ac3_raw_bsi['flags']['audprodinfo2']) {
$thisfile_ac3_raw_bsi['mixlevel2'] = $this->readHeaderBSI(5); // 5.4.2.22 mixlevel2: Mixing Level, ch2, 5 Bits
$thisfile_ac3_raw_bsi['roomtyp2'] = $this->readHeaderBSI(2); // 5.4.2.23 roomtyp2: Room Type, ch2, 2 Bits
$thisfile_ac3['mixing_level2'] = (80 + $thisfile_ac3_raw_bsi['mixlevel2']).'dB';
$thisfile_ac3['room_type2'] = self::roomTypeLookup($thisfile_ac3_raw_bsi['roomtyp2']);
}
$thisfile_ac3_raw_bsi['copyright'] = (bool) $this->readHeaderBSI(1); // 5.4.2.24 copyrightb: Copyright Bit, 1 Bit
$thisfile_ac3_raw_bsi['original'] = (bool) $this->readHeaderBSI(1); // 5.4.2.25 origbs: Original Bit Stream, 1 Bit
$thisfile_ac3_raw_bsi['flags']['timecod1'] = $this->readHeaderBSI(2); // 5.4.2.26 timecod1e, timcode2e: Time Code (first and second) Halves Exist, 2 Bits
if ($thisfile_ac3_raw_bsi['flags']['timecod1'] & 0x01) {
$thisfile_ac3_raw_bsi['timecod1'] = $this->readHeaderBSI(14); // 5.4.2.27 timecod1: Time code first half, 14 bits
$thisfile_ac3['timecode1'] = 0;
$thisfile_ac3['timecode1'] += (($thisfile_ac3_raw_bsi['timecod1'] & 0x3E00) >> 9) * 3600; // The first 5 bits of this 14-bit field represent the time in hours, with valid values of 0�23
$thisfile_ac3['timecode1'] += (($thisfile_ac3_raw_bsi['timecod1'] & 0x01F8) >> 3) * 60; // The next 6 bits represent the time in minutes, with valid values of 0�59
$thisfile_ac3['timecode1'] += (($thisfile_ac3_raw_bsi['timecod1'] & 0x0003) >> 0) * 8; // The final 3 bits represents the time in 8 second increments, with valid values of 0�7 (representing 0, 8, 16, ... 56 seconds)
}
if ($thisfile_ac3_raw_bsi['flags']['timecod1'] & 0x02) {
$thisfile_ac3_raw_bsi['timecod2'] = $this->readHeaderBSI(14); // 5.4.2.28 timecod2: Time code second half, 14 bits
$thisfile_ac3['timecode2'] = 0;
$thisfile_ac3['timecode2'] += (($thisfile_ac3_raw_bsi['timecod2'] & 0x3800) >> 11) * 1; // The first 3 bits of this 14-bit field represent the time in seconds, with valid values from 0�7 (representing 0-7 seconds)
$thisfile_ac3['timecode2'] += (($thisfile_ac3_raw_bsi['timecod2'] & 0x07C0) >> 6) * (1 / 30); // The next 5 bits represents the time in frames, with valid values from 0�29 (one frame = 1/30th of a second)
$thisfile_ac3['timecode2'] += (($thisfile_ac3_raw_bsi['timecod2'] & 0x003F) >> 0) * ((1 / 30) / 60); // The final 6 bits represents fractions of 1/64 of a frame, with valid values from 0�63
}
$thisfile_ac3_raw_bsi['flags']['addbsi'] = (bool) $this->readHeaderBSI(1);
if ($thisfile_ac3_raw_bsi['flags']['addbsi']) {
$thisfile_ac3_raw_bsi['addbsi_length'] = $this->readHeaderBSI(6) + 1; // This 6-bit code, which exists only if addbside is a 1, indicates the length in bytes of additional bit stream information. The valid range of addbsil is 0�63, indicating 1�64 additional bytes, respectively.
$this->AC3header['bsi'] .= getid3_lib::BigEndian2Bin($this->fread($thisfile_ac3_raw_bsi['addbsi_length']));
$thisfile_ac3_raw_bsi['addbsi_data'] = substr($this->AC3header['bsi'], $this->BSIoffset, $thisfile_ac3_raw_bsi['addbsi_length'] * 8);
$this->BSIoffset += $thisfile_ac3_raw_bsi['addbsi_length'] * 8;
}
} elseif ($thisfile_ac3_raw_bsi['bsid'] <= 16) { // E-AC3
$this->error('E-AC3 parsing is incomplete and experimental in this version of getID3 ('.$this->getid3->version().'). Notably the bitrate calculations are wrong -- value might (or not) be correct, but it is not calculated correctly. Email info@getid3.org if you know how to calculate EAC3 bitrate correctly.');
$info['audio']['dataformat'] = 'eac3';
$thisfile_ac3_raw_bsi['strmtyp'] = $this->readHeaderBSI(2);
$thisfile_ac3_raw_bsi['substreamid'] = $this->readHeaderBSI(3);
$thisfile_ac3_raw_bsi['frmsiz'] = $this->readHeaderBSI(11);
$thisfile_ac3_raw_bsi['fscod'] = $this->readHeaderBSI(2);
if ($thisfile_ac3_raw_bsi['fscod'] == 3) {
$thisfile_ac3_raw_bsi['fscod2'] = $this->readHeaderBSI(2);
$thisfile_ac3_raw_bsi['numblkscod'] = 3; // six blocks per syncframe
} else {
$thisfile_ac3_raw_bsi['numblkscod'] = $this->readHeaderBSI(2);
}
$thisfile_ac3['bsi']['blocks_per_sync_frame'] = self::blocksPerSyncFrame($thisfile_ac3_raw_bsi['numblkscod']);
$thisfile_ac3_raw_bsi['acmod'] = $this->readHeaderBSI(3);
$thisfile_ac3_raw_bsi['flags']['lfeon'] = (bool) $this->readHeaderBSI(1);
$thisfile_ac3_raw_bsi['bsid'] = $this->readHeaderBSI(5); // we already know this from pre-parsing the version identifier, but re-read it to let the bitstream flow as intended
$thisfile_ac3_raw_bsi['dialnorm'] = $this->readHeaderBSI(5);
$thisfile_ac3_raw_bsi['flags']['compr'] = (bool) $this->readHeaderBSI(1);
if ($thisfile_ac3_raw_bsi['flags']['compr']) {
$thisfile_ac3_raw_bsi['compr'] = $this->readHeaderBSI(8);
}
if ($thisfile_ac3_raw_bsi['acmod'] == 0) { // if 1+1 mode (dual mono, so some items need a second value)
$thisfile_ac3_raw_bsi['dialnorm2'] = $this->readHeaderBSI(5);
$thisfile_ac3_raw_bsi['flags']['compr2'] = (bool) $this->readHeaderBSI(1);
if ($thisfile_ac3_raw_bsi['flags']['compr2']) {
$thisfile_ac3_raw_bsi['compr2'] = $this->readHeaderBSI(8);
}
}
if ($thisfile_ac3_raw_bsi['strmtyp'] == 1) { // if dependent stream
$thisfile_ac3_raw_bsi['flags']['chanmap'] = (bool) $this->readHeaderBSI(1);
if ($thisfile_ac3_raw_bsi['flags']['chanmap']) {
$thisfile_ac3_raw_bsi['chanmap'] = $this->readHeaderBSI(8);
}
}
$thisfile_ac3_raw_bsi['flags']['mixmdat'] = (bool) $this->readHeaderBSI(1);
if ($thisfile_ac3_raw_bsi['flags']['mixmdat']) { // Mixing metadata
if ($thisfile_ac3_raw_bsi['acmod'] > 2) { // if more than 2 channels
$thisfile_ac3_raw_bsi['dmixmod'] = $this->readHeaderBSI(2);
}
if (($thisfile_ac3_raw_bsi['acmod'] & 0x01) && ($thisfile_ac3_raw_bsi['acmod'] > 2)) { // if three front channels exist
$thisfile_ac3_raw_bsi['ltrtcmixlev'] = $this->readHeaderBSI(3);
$thisfile_ac3_raw_bsi['lorocmixlev'] = $this->readHeaderBSI(3);
}
if ($thisfile_ac3_raw_bsi['acmod'] & 0x04) { // if a surround channel exists
$thisfile_ac3_raw_bsi['ltrtsurmixlev'] = $this->readHeaderBSI(3);
$thisfile_ac3_raw_bsi['lorosurmixlev'] = $this->readHeaderBSI(3);
}
if ($thisfile_ac3_raw_bsi['flags']['lfeon']) { // if the LFE channel exists
$thisfile_ac3_raw_bsi['flags']['lfemixlevcod'] = (bool) $this->readHeaderBSI(1);
if ($thisfile_ac3_raw_bsi['flags']['lfemixlevcod']) {
$thisfile_ac3_raw_bsi['lfemixlevcod'] = $this->readHeaderBSI(5);
}
}
if ($thisfile_ac3_raw_bsi['strmtyp'] == 0) { // if independent stream
$thisfile_ac3_raw_bsi['flags']['pgmscl'] = (bool) $this->readHeaderBSI(1);
if ($thisfile_ac3_raw_bsi['flags']['pgmscl']) {
$thisfile_ac3_raw_bsi['pgmscl'] = $this->readHeaderBSI(6);
}
if ($thisfile_ac3_raw_bsi['acmod'] == 0) { // if 1+1 mode (dual mono, so some items need a second value)
$thisfile_ac3_raw_bsi['flags']['pgmscl2'] = (bool) $this->readHeaderBSI(1);
if ($thisfile_ac3_raw_bsi['flags']['pgmscl2']) {
$thisfile_ac3_raw_bsi['pgmscl2'] = $this->readHeaderBSI(6);
}
}
$thisfile_ac3_raw_bsi['flags']['extpgmscl'] = (bool) $this->readHeaderBSI(1);
if ($thisfile_ac3_raw_bsi['flags']['extpgmscl']) {
$thisfile_ac3_raw_bsi['extpgmscl'] = $this->readHeaderBSI(6);
}
$thisfile_ac3_raw_bsi['mixdef'] = $this->readHeaderBSI(2);
if ($thisfile_ac3_raw_bsi['mixdef'] == 1) { // mixing option 2
$thisfile_ac3_raw_bsi['premixcmpsel'] = (bool) $this->readHeaderBSI(1);
$thisfile_ac3_raw_bsi['drcsrc'] = (bool) $this->readHeaderBSI(1);
$thisfile_ac3_raw_bsi['premixcmpscl'] = $this->readHeaderBSI(3);
} elseif ($thisfile_ac3_raw_bsi['mixdef'] == 2) { // mixing option 3
$thisfile_ac3_raw_bsi['mixdata'] = $this->readHeaderBSI(12);
} elseif ($thisfile_ac3_raw_bsi['mixdef'] == 3) { // mixing option 4
$mixdefbitsread = 0;
$thisfile_ac3_raw_bsi['mixdeflen'] = $this->readHeaderBSI(5); $mixdefbitsread += 5;
$thisfile_ac3_raw_bsi['flags']['mixdata2'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1;
if ($thisfile_ac3_raw_bsi['flags']['mixdata2']) {
$thisfile_ac3_raw_bsi['premixcmpsel'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1;
$thisfile_ac3_raw_bsi['drcsrc'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1;
$thisfile_ac3_raw_bsi['premixcmpscl'] = $this->readHeaderBSI(3); $mixdefbitsread += 3;
$thisfile_ac3_raw_bsi['flags']['extpgmlscl'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1;
if ($thisfile_ac3_raw_bsi['flags']['extpgmlscl']) {
$thisfile_ac3_raw_bsi['extpgmlscl'] = $this->readHeaderBSI(4); $mixdefbitsread += 4;
}
$thisfile_ac3_raw_bsi['flags']['extpgmcscl'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1;
if ($thisfile_ac3_raw_bsi['flags']['extpgmcscl']) {
$thisfile_ac3_raw_bsi['extpgmcscl'] = $this->readHeaderBSI(4); $mixdefbitsread += 4;
}
$thisfile_ac3_raw_bsi['flags']['extpgmrscl'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1;
if ($thisfile_ac3_raw_bsi['flags']['extpgmrscl']) {
$thisfile_ac3_raw_bsi['extpgmrscl'] = $this->readHeaderBSI(4);
}
$thisfile_ac3_raw_bsi['flags']['extpgmlsscl'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1;
if ($thisfile_ac3_raw_bsi['flags']['extpgmlsscl']) {
$thisfile_ac3_raw_bsi['extpgmlsscl'] = $this->readHeaderBSI(4); $mixdefbitsread += 4;
}
$thisfile_ac3_raw_bsi['flags']['extpgmrsscl'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1;
if ($thisfile_ac3_raw_bsi['flags']['extpgmrsscl']) {
$thisfile_ac3_raw_bsi['extpgmrsscl'] = $this->readHeaderBSI(4); $mixdefbitsread += 4;
}
$thisfile_ac3_raw_bsi['flags']['extpgmlfescl'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1;
if ($thisfile_ac3_raw_bsi['flags']['extpgmlfescl']) {
$thisfile_ac3_raw_bsi['extpgmlfescl'] = $this->readHeaderBSI(4); $mixdefbitsread += 4;
}
$thisfile_ac3_raw_bsi['flags']['dmixscl'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1;
if ($thisfile_ac3_raw_bsi['flags']['dmixscl']) {
$thisfile_ac3_raw_bsi['dmixscl'] = $this->readHeaderBSI(4); $mixdefbitsread += 4;
}
$thisfile_ac3_raw_bsi['flags']['addch'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1;
if ($thisfile_ac3_raw_bsi['flags']['addch']) {
$thisfile_ac3_raw_bsi['flags']['extpgmaux1scl'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1;
if ($thisfile_ac3_raw_bsi['flags']['extpgmaux1scl']) {
$thisfile_ac3_raw_bsi['extpgmaux1scl'] = $this->readHeaderBSI(4); $mixdefbitsread += 4;
}
$thisfile_ac3_raw_bsi['flags']['extpgmaux2scl'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1;
if ($thisfile_ac3_raw_bsi['flags']['extpgmaux2scl']) {
$thisfile_ac3_raw_bsi['extpgmaux2scl'] = $this->readHeaderBSI(4); $mixdefbitsread += 4;
}
}
}
$thisfile_ac3_raw_bsi['flags']['mixdata3'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1;
if ($thisfile_ac3_raw_bsi['flags']['mixdata3']) {
$thisfile_ac3_raw_bsi['spchdat'] = $this->readHeaderBSI(5); $mixdefbitsread += 5;
$thisfile_ac3_raw_bsi['flags']['addspchdat'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1;
if ($thisfile_ac3_raw_bsi['flags']['addspchdat']) {
$thisfile_ac3_raw_bsi['spchdat1'] = $this->readHeaderBSI(5); $mixdefbitsread += 5;
$thisfile_ac3_raw_bsi['spchan1att'] = $this->readHeaderBSI(2); $mixdefbitsread += 2;
$thisfile_ac3_raw_bsi['flags']['addspchdat1'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1;
if ($thisfile_ac3_raw_bsi['flags']['addspchdat1']) {
$thisfile_ac3_raw_bsi['spchdat2'] = $this->readHeaderBSI(5); $mixdefbitsread += 5;
$thisfile_ac3_raw_bsi['spchan2att'] = $this->readHeaderBSI(3); $mixdefbitsread += 3;
}
}
}
$mixdata_bits = (8 * ($thisfile_ac3_raw_bsi['mixdeflen'] + 2)) - $mixdefbitsread;
$mixdata_fill = (($mixdata_bits % 8) ? 8 - ($mixdata_bits % 8) : 0);
$thisfile_ac3_raw_bsi['mixdata'] = $this->readHeaderBSI($mixdata_bits);
$thisfile_ac3_raw_bsi['mixdatafill'] = $this->readHeaderBSI($mixdata_fill);
unset($mixdefbitsread, $mixdata_bits, $mixdata_fill);
}
if ($thisfile_ac3_raw_bsi['acmod'] < 2) { // if mono or dual mono source
$thisfile_ac3_raw_bsi['flags']['paninfo'] = (bool) $this->readHeaderBSI(1);
if ($thisfile_ac3_raw_bsi['flags']['paninfo']) {
$thisfile_ac3_raw_bsi['panmean'] = $this->readHeaderBSI(8);
$thisfile_ac3_raw_bsi['paninfo'] = $this->readHeaderBSI(6);
}
if ($thisfile_ac3_raw_bsi['acmod'] == 0) { // if 1+1 mode (dual mono, so some items need a second value)
$thisfile_ac3_raw_bsi['flags']['paninfo2'] = (bool) $this->readHeaderBSI(1);
if ($thisfile_ac3_raw_bsi['flags']['paninfo2']) {
$thisfile_ac3_raw_bsi['panmean2'] = $this->readHeaderBSI(8);
$thisfile_ac3_raw_bsi['paninfo2'] = $this->readHeaderBSI(6);
}
}
}
$thisfile_ac3_raw_bsi['flags']['frmmixcfginfo'] = (bool) $this->readHeaderBSI(1);
if ($thisfile_ac3_raw_bsi['flags']['frmmixcfginfo']) { // mixing configuration information
if ($thisfile_ac3_raw_bsi['numblkscod'] == 0) {
$thisfile_ac3_raw_bsi['blkmixcfginfo'][0] = $this->readHeaderBSI(5);
} else {
for ($blk = 0; $blk < $thisfile_ac3_raw_bsi['numblkscod']; $blk++) {
$thisfile_ac3_raw_bsi['flags']['blkmixcfginfo'.$blk] = (bool) $this->readHeaderBSI(1);
if ($thisfile_ac3_raw_bsi['flags']['blkmixcfginfo'.$blk]) { // mixing configuration information
$thisfile_ac3_raw_bsi['blkmixcfginfo'][$blk] = $this->readHeaderBSI(5);
}
}
}
}
}
}
$thisfile_ac3_raw_bsi['flags']['infomdat'] = (bool) $this->readHeaderBSI(1);
if ($thisfile_ac3_raw_bsi['flags']['infomdat']) { // Informational metadata
$thisfile_ac3_raw_bsi['bsmod'] = $this->readHeaderBSI(3);
$thisfile_ac3_raw_bsi['flags']['copyrightb'] = (bool) $this->readHeaderBSI(1);
$thisfile_ac3_raw_bsi['flags']['origbs'] = (bool) $this->readHeaderBSI(1);
if ($thisfile_ac3_raw_bsi['acmod'] == 2) { // if in 2/0 mode
$thisfile_ac3_raw_bsi['dsurmod'] = $this->readHeaderBSI(2);
$thisfile_ac3_raw_bsi['dheadphonmod'] = $this->readHeaderBSI(2);
}
if ($thisfile_ac3_raw_bsi['acmod'] >= 6) { // if both surround channels exist
$thisfile_ac3_raw_bsi['dsurexmod'] = $this->readHeaderBSI(2);
}
$thisfile_ac3_raw_bsi['flags']['audprodi'] = (bool) $this->readHeaderBSI(1);
if ($thisfile_ac3_raw_bsi['flags']['audprodi']) {
$thisfile_ac3_raw_bsi['mixlevel'] = $this->readHeaderBSI(5);
$thisfile_ac3_raw_bsi['roomtyp'] = $this->readHeaderBSI(2);
$thisfile_ac3_raw_bsi['flags']['adconvtyp'] = (bool) $this->readHeaderBSI(1);
}
if ($thisfile_ac3_raw_bsi['acmod'] == 0) { // if 1+1 mode (dual mono, so some items need a second value)
$thisfile_ac3_raw_bsi['flags']['audprodi2'] = (bool) $this->readHeaderBSI(1);
if ($thisfile_ac3_raw_bsi['flags']['audprodi2']) {
$thisfile_ac3_raw_bsi['mixlevel2'] = $this->readHeaderBSI(5);
$thisfile_ac3_raw_bsi['roomtyp2'] = $this->readHeaderBSI(2);
$thisfile_ac3_raw_bsi['flags']['adconvtyp2'] = (bool) $this->readHeaderBSI(1);
}
}
if ($thisfile_ac3_raw_bsi['fscod'] < 3) { // if not half sample rate
$thisfile_ac3_raw_bsi['flags']['sourcefscod'] = (bool) $this->readHeaderBSI(1);
}
}
if (($thisfile_ac3_raw_bsi['strmtyp'] == 0) && ($thisfile_ac3_raw_bsi['numblkscod'] != 3)) { // if both surround channels exist
$thisfile_ac3_raw_bsi['flags']['convsync'] = (bool) $this->readHeaderBSI(1);
}
if ($thisfile_ac3_raw_bsi['strmtyp'] == 2) { // if bit stream converted from AC-3
if ($thisfile_ac3_raw_bsi['numblkscod'] != 3) { // 6 blocks per syncframe
$thisfile_ac3_raw_bsi['flags']['blkid'] = 1;
} else {
$thisfile_ac3_raw_bsi['flags']['blkid'] = (bool) $this->readHeaderBSI(1);
}
if ($thisfile_ac3_raw_bsi['flags']['blkid']) {
$thisfile_ac3_raw_bsi['frmsizecod'] = $this->readHeaderBSI(6);
}
}
$thisfile_ac3_raw_bsi['flags']['addbsi'] = (bool) $this->readHeaderBSI(1);
if ($thisfile_ac3_raw_bsi['flags']['addbsi']) {
$thisfile_ac3_raw_bsi['addbsil'] = $this->readHeaderBSI(6);
$thisfile_ac3_raw_bsi['addbsi'] = $this->readHeaderBSI(($thisfile_ac3_raw_bsi['addbsil'] + 1) * 8);
}
} else {
$this->error('Bit stream identification is version '.$thisfile_ac3_raw_bsi['bsid'].', but getID3() only understands up to version 16. Please submit a support ticket with a sample file.');
unset($info['ac3']);
return false;
}
if (isset($thisfile_ac3_raw_bsi['fscod2'])) {
$thisfile_ac3['sample_rate'] = self::sampleRateCodeLookup2($thisfile_ac3_raw_bsi['fscod2']);
} else {
$thisfile_ac3['sample_rate'] = self::sampleRateCodeLookup($thisfile_ac3_raw_bsi['fscod']);
}
if ($thisfile_ac3_raw_bsi['fscod'] <= 3) {
$info['audio']['sample_rate'] = $thisfile_ac3['sample_rate'];
} else {
$this->warning('Unexpected ac3.bsi.fscod value: '.$thisfile_ac3_raw_bsi['fscod']);
}
if (isset($thisfile_ac3_raw_bsi['frmsizecod'])) {
$thisfile_ac3['frame_length'] = self::frameSizeLookup($thisfile_ac3_raw_bsi['frmsizecod'], $thisfile_ac3_raw_bsi['fscod']);
$thisfile_ac3['bitrate'] = self::bitrateLookup($thisfile_ac3_raw_bsi['frmsizecod']);
} elseif (!empty($thisfile_ac3_raw_bsi['frmsiz'])) {
// this isn't right, but it's (usually) close, roughly 5% less than it should be.
// but WHERE is the actual bitrate value stored in EAC3?? email info@getid3.org if you know!
$thisfile_ac3['bitrate'] = ($thisfile_ac3_raw_bsi['frmsiz'] + 1) * 16 * 30; // The frmsiz field shall contain a value one less than the overall size of the coded syncframe in 16-bit words. That is, this field may assume a value ranging from 0 to 2047, and these values correspond to syncframe sizes ranging from 1 to 2048.
// kludge-fix to make it approximately the expected value, still not "right":
$thisfile_ac3['bitrate'] = round(($thisfile_ac3['bitrate'] * 1.05) / 16000) * 16000;
}
$info['audio']['bitrate'] = $thisfile_ac3['bitrate'];
if (isset($thisfile_ac3_raw_bsi['bsmod']) && isset($thisfile_ac3_raw_bsi['acmod'])) {
$thisfile_ac3['service_type'] = self::serviceTypeLookup($thisfile_ac3_raw_bsi['bsmod'], $thisfile_ac3_raw_bsi['acmod']);
}
$ac3_coding_mode = self::audioCodingModeLookup($thisfile_ac3_raw_bsi['acmod']);
foreach($ac3_coding_mode as $key => $value) {
$thisfile_ac3[$key] = $value;
}
switch ($thisfile_ac3_raw_bsi['acmod']) {
case 0:
case 1:
$info['audio']['channelmode'] = 'mono';
break;
case 3:
case 4:
$info['audio']['channelmode'] = 'stereo';
break;
default:
$info['audio']['channelmode'] = 'surround';
break;
}
$info['audio']['channels'] = $thisfile_ac3['num_channels'];
$thisfile_ac3['lfe_enabled'] = $thisfile_ac3_raw_bsi['flags']['lfeon'];
if ($thisfile_ac3_raw_bsi['flags']['lfeon']) {
$info['audio']['channels'] .= '.1';
}
$thisfile_ac3['channels_enabled'] = self::channelsEnabledLookup($thisfile_ac3_raw_bsi['acmod'], $thisfile_ac3_raw_bsi['flags']['lfeon']);
$thisfile_ac3['dialogue_normalization'] = '-'.$thisfile_ac3_raw_bsi['dialnorm'].'dB';
return true;
}
/**
* @param int $length
*
* @return int
*/
private function readHeaderBSI($length) {
$data = substr($this->AC3header['bsi'], $this->BSIoffset, $length);
$this->BSIoffset += $length;
return bindec($data);
}
/**
* @param int $fscod
*
* @return int|string|false
*/
public static function sampleRateCodeLookup($fscod) {
static $sampleRateCodeLookup = array(
0 => 48000,
1 => 44100,
2 => 32000,
3 => 'reserved' // If the reserved code is indicated, the decoder should not attempt to decode audio and should mute.
);
return (isset($sampleRateCodeLookup[$fscod]) ? $sampleRateCodeLookup[$fscod] : false);
}
/**
* @param int $fscod2
*
* @return int|string|false
*/
public static function sampleRateCodeLookup2($fscod2) {
static $sampleRateCodeLookup2 = array(
0 => 24000,
1 => 22050,
2 => 16000,
3 => 'reserved' // If the reserved code is indicated, the decoder should not attempt to decode audio and should mute.
);
return (isset($sampleRateCodeLookup2[$fscod2]) ? $sampleRateCodeLookup2[$fscod2] : false);
}
/**
* @param int $bsmod
* @param int $acmod
*
* @return string|false
*/
public static function serviceTypeLookup($bsmod, $acmod) {
static $serviceTypeLookup = array();
if (empty($serviceTypeLookup)) {
for ($i = 0; $i <= 7; $i++) {
$serviceTypeLookup[0][$i] = 'main audio service: complete main (CM)';
$serviceTypeLookup[1][$i] = 'main audio service: music and effects (ME)';
$serviceTypeLookup[2][$i] = 'associated service: visually impaired (VI)';
$serviceTypeLookup[3][$i] = 'associated service: hearing impaired (HI)';
$serviceTypeLookup[4][$i] = 'associated service: dialogue (D)';
$serviceTypeLookup[5][$i] = 'associated service: commentary (C)';
$serviceTypeLookup[6][$i] = 'associated service: emergency (E)';
}
$serviceTypeLookup[7][1] = 'associated service: voice over (VO)';
for ($i = 2; $i <= 7; $i++) {
$serviceTypeLookup[7][$i] = 'main audio service: karaoke';
}
}
return (isset($serviceTypeLookup[$bsmod][$acmod]) ? $serviceTypeLookup[$bsmod][$acmod] : false);
}
/**
* @param int $acmod
*
* @return array|false
*/
public static function audioCodingModeLookup($acmod) {
// array(channel configuration, # channels (not incl LFE), channel order)
static $audioCodingModeLookup = array (
0 => array('channel_config'=>'1+1', 'num_channels'=>2, 'channel_order'=>'Ch1,Ch2'),
1 => array('channel_config'=>'1/0', 'num_channels'=>1, 'channel_order'=>'C'),
2 => array('channel_config'=>'2/0', 'num_channels'=>2, 'channel_order'=>'L,R'),
3 => array('channel_config'=>'3/0', 'num_channels'=>3, 'channel_order'=>'L,C,R'),
4 => array('channel_config'=>'2/1', 'num_channels'=>3, 'channel_order'=>'L,R,S'),
5 => array('channel_config'=>'3/1', 'num_channels'=>4, 'channel_order'=>'L,C,R,S'),
6 => array('channel_config'=>'2/2', 'num_channels'=>4, 'channel_order'=>'L,R,SL,SR'),
7 => array('channel_config'=>'3/2', 'num_channels'=>5, 'channel_order'=>'L,C,R,SL,SR'),
);
return (isset($audioCodingModeLookup[$acmod]) ? $audioCodingModeLookup[$acmod] : false);
}
/**
* @param int $cmixlev
*
* @return int|float|string|false
*/
public static function centerMixLevelLookup($cmixlev) {
static $centerMixLevelLookup;
if (empty($centerMixLevelLookup)) {
$centerMixLevelLookup = array(
0 => pow(2, -3.0 / 6), // 0.707 (-3.0 dB)
1 => pow(2, -4.5 / 6), // 0.595 (-4.5 dB)
2 => pow(2, -6.0 / 6), // 0.500 (-6.0 dB)
3 => 'reserved'
);
}
return (isset($centerMixLevelLookup[$cmixlev]) ? $centerMixLevelLookup[$cmixlev] : false);
}
/**
* @param int $surmixlev
*
* @return int|float|string|false
*/
public static function surroundMixLevelLookup($surmixlev) {
static $surroundMixLevelLookup;
if (empty($surroundMixLevelLookup)) {
$surroundMixLevelLookup = array(
0 => pow(2, -3.0 / 6),
1 => pow(2, -6.0 / 6),
2 => 0,
3 => 'reserved'
);
}
return (isset($surroundMixLevelLookup[$surmixlev]) ? $surroundMixLevelLookup[$surmixlev] : false);
}
/**
* @param int $dsurmod
*
* @return string|false
*/
public static function dolbySurroundModeLookup($dsurmod) {
static $dolbySurroundModeLookup = array(
0 => 'not indicated',
1 => 'Not Dolby Surround encoded',
2 => 'Dolby Surround encoded',
3 => 'reserved'
);
return (isset($dolbySurroundModeLookup[$dsurmod]) ? $dolbySurroundModeLookup[$dsurmod] : false);
}
/**
* @param int $acmod
* @param bool $lfeon
*
* @return array
*/
public static function channelsEnabledLookup($acmod, $lfeon) {
$lookup = array(
'ch1'=>($acmod == 0),
'ch2'=>($acmod == 0),
'left'=>($acmod > 1),
'right'=>($acmod > 1),
'center'=>(bool) ($acmod & 0x01),
'surround_mono'=>false,
'surround_left'=>false,
'surround_right'=>false,
'lfe'=>$lfeon);
switch ($acmod) {
case 4:
case 5:
$lookup['surround_mono'] = true;
break;
case 6:
case 7:
$lookup['surround_left'] = true;
$lookup['surround_right'] = true;
break;
}
return $lookup;
}
/**
* @param int $compre
*
* @return float|int
*/
public static function heavyCompression($compre) {
// The first four bits indicate gain changes in 6.02dB increments which can be
// implemented with an arithmetic shift operation. The following four bits
// indicate linear gain changes, and require a 5-bit multiply.
// We will represent the two 4-bit fields of compr as follows:
// X0 X1 X2 X3 . Y4 Y5 Y6 Y7
// The meaning of the X values is most simply described by considering X to represent a 4-bit
// signed integer with values from -8 to +7. The gain indicated by X is then (X + 1) * 6.02 dB. The
// following table shows this in detail.
// Meaning of 4 msb of compr
// 7 +48.16 dB
// 6 +42.14 dB
// 5 +36.12 dB
// 4 +30.10 dB
// 3 +24.08 dB
// 2 +18.06 dB
// 1 +12.04 dB
// 0 +6.02 dB
// -1 0 dB
// -2 -6.02 dB
// -3 -12.04 dB
// -4 -18.06 dB
// -5 -24.08 dB
// -6 -30.10 dB
// -7 -36.12 dB
// -8 -42.14 dB
$fourbit = str_pad(decbin(($compre & 0xF0) >> 4), 4, '0', STR_PAD_LEFT);
if ($fourbit[0] == '1') {
$log_gain = -8 + bindec(substr($fourbit, 1));
} else {
$log_gain = bindec(substr($fourbit, 1));
}
$log_gain = ($log_gain + 1) * getid3_lib::RGADamplitude2dB(2);
// The value of Y is a linear representation of a gain change of up to -6 dB. Y is considered to
// be an unsigned fractional integer, with a leading value of 1, or: 0.1 Y4 Y5 Y6 Y7 (base 2). Y can
// represent values between 0.111112 (or 31/32) and 0.100002 (or 1/2). Thus, Y can represent gain
// changes from -0.28 dB to -6.02 dB.
$lin_gain = (16 + ($compre & 0x0F)) / 32;
// The combination of X and Y values allows compr to indicate gain changes from
// 48.16 - 0.28 = +47.89 dB, to
// -42.14 - 6.02 = -48.16 dB.
return $log_gain - $lin_gain;
}
/**
* @param int $roomtyp
*
* @return string|false
*/
public static function roomTypeLookup($roomtyp) {
static $roomTypeLookup = array(
0 => 'not indicated',
1 => 'large room, X curve monitor',
2 => 'small room, flat monitor',
3 => 'reserved'
);
return (isset($roomTypeLookup[$roomtyp]) ? $roomTypeLookup[$roomtyp] : false);
}
/**
* @param int $frmsizecod
* @param int $fscod
*
* @return int|false
*/
public static function frameSizeLookup($frmsizecod, $fscod) {
// LSB is whether padding is used or not
$padding = (bool) ($frmsizecod & 0x01);
$framesizeid = ($frmsizecod & 0x3E) >> 1;
static $frameSizeLookup = array();
if (empty($frameSizeLookup)) {
$frameSizeLookup = array (
0 => array( 128, 138, 192), // 32 kbps
1 => array( 160, 174, 240), // 40 kbps
2 => array( 192, 208, 288), // 48 kbps
3 => array( 224, 242, 336), // 56 kbps
4 => array( 256, 278, 384), // 64 kbps
5 => array( 320, 348, 480), // 80 kbps
6 => array( 384, 416, 576), // 96 kbps
7 => array( 448, 486, 672), // 112 kbps
8 => array( 512, 556, 768), // 128 kbps
9 => array( 640, 696, 960), // 160 kbps
10 => array( 768, 834, 1152), // 192 kbps
11 => array( 896, 974, 1344), // 224 kbps
12 => array(1024, 1114, 1536), // 256 kbps
13 => array(1280, 1392, 1920), // 320 kbps
14 => array(1536, 1670, 2304), // 384 kbps
15 => array(1792, 1950, 2688), // 448 kbps
16 => array(2048, 2228, 3072), // 512 kbps
17 => array(2304, 2506, 3456), // 576 kbps
18 => array(2560, 2786, 3840) // 640 kbps
);
}
$paddingBytes = 0;
if (($fscod == 1) && $padding) {
// frame lengths are padded by 1 word (16 bits) at 44100
// (fscode==1) means 44100Hz (see sampleRateCodeLookup)
$paddingBytes = 2;
}
return (isset($frameSizeLookup[$framesizeid][$fscod]) ? $frameSizeLookup[$framesizeid][$fscod] + $paddingBytes : false);
}
/**
* @param int $frmsizecod
*
* @return int|false
*/
public static function bitrateLookup($frmsizecod) {
// LSB is whether padding is used or not
$padding = (bool) ($frmsizecod & 0x01);
$framesizeid = ($frmsizecod & 0x3E) >> 1;
static $bitrateLookup = array(
0 => 32000,
1 => 40000,
2 => 48000,
3 => 56000,
4 => 64000,
5 => 80000,
6 => 96000,
7 => 112000,
8 => 128000,
9 => 160000,
10 => 192000,
11 => 224000,
12 => 256000,
13 => 320000,
14 => 384000,
15 => 448000,
16 => 512000,
17 => 576000,
18 => 640000,
);
return (isset($bitrateLookup[$framesizeid]) ? $bitrateLookup[$framesizeid] : false);
}
/**
* @param int $numblkscod
*
* @return int|false
*/
public static function blocksPerSyncFrame($numblkscod) {
static $blocksPerSyncFrameLookup = array(
0 => 1,
1 => 2,
2 => 3,
3 => 6,
);
return (isset($blocksPerSyncFrameLookup[$numblkscod]) ? $blocksPerSyncFrameLookup[$numblkscod] : false);
}
}
Как выбрать надежную букмекерская контора для ставок? – tahkoom.com
Как выбрать надежную букмекерская контора для ставок?
Выбор надежной букмекерской конторы — это основной шаг для успешных ставок на спорт. В современной индустрии азартных игр существует множество факторов, на которые стоит обратить внимание. Надежная контора должна обеспечивать честные условия игры, высокий уровень безопасности, а также удобство и доступность для клиентов. В этой статье мы обсудим ключевые моменты, на которые нужно ориентироваться при выборе букмекера, чтобы ваша игровая практика была не только прибыльной, но и безопасной.
Лицензия и регулирование
Первым и, пожалуй, самым важным критерием при выборе букмекерской конторы является наличие лицензии. Легальная деятельность букмекерской конторы гарантирует, что она соблюдает все законы и правила, обеспечивая защиту прав клиентов. Вот несколько аспектов, на которые следует обратить внимание:
Тип лицензии. Узнайте, какой орган выдал лицензию: лицензии от известных регуляторов являются индикатором надежности.Четкость условий. Все правила и условия должны быть четко прописаны и легко доступны для пользователей.Репутация. Исследуйте отзывы о компании для понимания ее репутации на рынке.
Таким образом, убедитесь, что выбранная вами контора имеет соответствующую лицензию и регуляцию, чтобы избежать неприятностей и недоразумений в будущем.
Коэффициенты и линии ставок
Коэффициенты, предлагаемые букмекерской конторой, напрямую влияют на вашу потенциальную прибыль. Чем выше коэффициенты, тем больше можно выиграть. Однако стоит также обращать внимание на линии ставок, которые предлагает букмекер. Более разнообразная линия позволяет делать более «умные» ставки, так как у вас есть выбор. Для выбора букмекера, обратите внимание на следующие моменты:
Сравнение коэффициентов. Сравнивайте коэффициенты разных контор на одинаковые события.Типы ставок. Чем больше типов ставок предлагает букмекер (экспресс, одиночные, системы и т.д.), тем больше возможностей у вас будет.Изменение коэффициентов. Следите за коэффициентами на протяжении определенного времени — это может выдать информацию о том, как реагирует рынок на события.
Удобство использования сайта
Независимо от того, сколько у вас опыта в ставках, важно, чтобы сайт букмекерской конторы был удобным и понятным. Пользовательский интерфейс должен быть интуитивно понятным, а доступ к необходимой информации — максимально упрощенным. Вот на что следует обратить внимание: 1xbet зеркало 2026
Навигация. Всю информацию должно быть легко найти: от информации о ставках до контактной поддержки.Мобильная версия. Проверьте, есть ли у букмекерской конторы мобильная версия сайта или приложения для удобных ставок на ходу.Скорость загрузки. Сайт должен быстро загружаться, так как задержки могут привести к упущенным возможностям.
Все эти факторы способствуют общему комфорту пользователя и позволяют сосредоточиться на самих ставках.
Методы пополнения и вывода средств
Перед тем как начать делать ставки, важно изучить доступные методы пополнения счета и вывода выигрышей. Чем больше вариантов, тем лучше. Вот несколько ключевых моментов для рассмотрения:
Разнообразие методов. Проверьте, поддерживает ли контора популярные платежные системы, такие как кредитные карты, электронные кошельки и криптовалюты.Комиссии и лимиты. Узнайте, есть ли комиссии за пополнение или вывод средств, а также минимальные и максимальные лимиты.Скорость обработки. Обратите внимание на время, необходимое для обработки запросов на вывод средств.
Эти аспекты являются важным критерием, поскольку они напрямую влияют на вашу финансовую удобство. Выбирайте букмекерскую контору с такими финансовыми условиями, которые подходят именно вам.
Качество клиентской поддержки
Наконец, не менее важным критерием выбора букмекера является качество клиентской поддержки. Хорошая букмекерская контора должна предоставлять множество способов связи и быстро реагировать на запросы. Вот несколько советов:
Доступные каналы общения. Убедитесь, что поддержка доступна через разные платформы: чат, телефон, электронная почта.Работа с пользователями. Проверьте, насколько быстро отвечает служба поддержки и насколько оперативно решает проблемы.Часто задаваемые вопросы. Надежные конторы имеют раздел FAQ, где можно найти ответы на распространенные вопросы.
Проверка качества клиентской поддержки может спасти вас в сложной ситуации и сделать тот опыт, который вы получите от ставок, более положительным.
Заключение
Выбор надежной букмекерской конторы — это не только вопрос удобства, но и вопрос вашей безопасности и финансового успеха. Обращая внимание на лицензирование, коэффициенты, удобство использования, методы обработки финансов и качество клиентской поддержки, вы сможете сделать осознанный выбор. Не забывайте проводить исследования и сравнивать несколько контор, прежде чем принимать решение. Удачи вам в ваших ставках!
Часто задаваемые вопросы (FAQ)
1. Какую роль играет лицензия у букмекерской конторы?
Лицензия гарантирует легальность деятельности букмекерской конторы и защиту прав клиентов, а также соблюдение правил ведения азартного бизнеса.
2. Как можно проверить коэффициенты разных букмекеров?
Сравнивайте коэффициенты на специализированных сайтах сравнения или используйте собственные расчеты на индивидуальных платформах.
3. Какие методы безопаснее использовать для пополнения счета?
Наиболее безопасные варианты — это известные электронные кошельки (PayPal, Skrill), банковские карты и криптовалюты, поскольку они предлагают хорошую защиту и анонимность.
4. Как быстро можно вывести деньги с букмекерской конторы?
Скорость вывода денег зависит от выбранного метода, но обычно это от нескольких часов до нескольких дней. Узнайте об этом заранее в условиях букмекера.
5. Что делать, если возникла проблема с ставками?
Немедленно обращайтесь в службу поддержки вашей букмекерской конторы для решения проблемы. Если ответ не устраивает, можно обратиться к регулятору или к экспертам в области азартных игр.
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