ILIAS  release_5-1 Revision 5.0.0-5477-g43f3e3fab5f
Public Member Functions | Static Public Member Functions
getid3_bonk Class Reference

getID3() by James Heinrich info@.nosp@m.geti.nosp@m.d3.or.nosp@m.g // More...

+ Inheritance diagram for getid3_bonk:
+ Collaboration diagram for getid3_bonk:

Public Member Functions

 getid3_bonk (&$fd, &$ThisFileInfo)
 
 HandleBonkTags (&$fd, &$BonkTagName, &$ThisFileInfo)
 
 BonkIsValidTagName ($PossibleBonkTag, $ignorecase=false)
 
 Analyze ()
 
 HandleBonkTags ($BonkTagName)
 
- Public Member Functions inherited from getid3_handler
 __construct (getID3 $getid3, $call_module=null)
 
 Analyze ()
 
 AnalyzeString ($string)
 
 setStringMode ($string)
 
 saveAttachment ($name, $offset, $length, $image_mime=null)
 

Static Public Member Functions

static BonkIsValidTagName ($PossibleBonkTag, $ignorecase=false)
 

Additional Inherited Members

- Protected Member Functions inherited from getid3_handler
 ftell ()
 
 fread ($bytes)
 
 fseek ($bytes, $whence=SEEK_SET)
 
 feof ()
 
 isDependencyFor ($module)
 
 error ($text)
 
 warning ($text)
 
 notice ($text)
 
- Protected Attributes inherited from getid3_handler
 $getid3
 
 $data_string_flag = false
 
 $data_string = ''
 
 $data_string_position = 0
 
 $data_string_length = 0
 

Detailed Description

getID3() by James Heinrich info@.nosp@m.geti.nosp@m.d3.or.nosp@m.g //

Definition at line 17 of file module.audio.bonk.php.

Member Function Documentation

◆ Analyze()

getid3_bonk::Analyze ( )

Definition at line 20 of file module.audio.bonk.php.

References $info, BonkIsValidTagName(), getid3_handler\fread(), getid3_handler\fseek(), getid3_handler\ftell(), HandleBonkTags(), getid3_lib\intValueSupported(), getid3_lib\LittleEndian2Int(), and getid3_lib\PrintHexBytes().

20  {
21  $info = &$this->getid3->info;
22 
23  // shortcut
24  $info['bonk'] = array();
25  $thisfile_bonk = &$info['bonk'];
26 
27  $thisfile_bonk['dataoffset'] = $info['avdataoffset'];
28  $thisfile_bonk['dataend'] = $info['avdataend'];
29 
30  if (!getid3_lib::intValueSupported($thisfile_bonk['dataend'])) {
31 
32  $info['warning'][] = 'Unable to parse BONK file from end (v0.6+ preferred method) because PHP filesystem functions only support up to '.round(PHP_INT_MAX / 1073741824).'GB';
33 
34  } else {
35 
36  // scan-from-end method, for v0.6 and higher
37  $this->fseek($thisfile_bonk['dataend'] - 8);
38  $PossibleBonkTag = $this->fread(8);
39  while ($this->BonkIsValidTagName(substr($PossibleBonkTag, 4, 4), true)) {
40  $BonkTagSize = getid3_lib::LittleEndian2Int(substr($PossibleBonkTag, 0, 4));
41  $this->fseek(0 - $BonkTagSize, SEEK_CUR);
42  $BonkTagOffset = $this->ftell();
43  $TagHeaderTest = $this->fread(5);
44  if (($TagHeaderTest{0} != "\x00") || (substr($PossibleBonkTag, 4, 4) != strtolower(substr($PossibleBonkTag, 4, 4)))) {
45  $info['error'][] = 'Expecting "'.getid3_lib::PrintHexBytes("\x00".strtoupper(substr($PossibleBonkTag, 4, 4))).'" at offset '.$BonkTagOffset.', found "'.getid3_lib::PrintHexBytes($TagHeaderTest).'"';
46  return false;
47  }
48  $BonkTagName = substr($TagHeaderTest, 1, 4);
49 
50  $thisfile_bonk[$BonkTagName]['size'] = $BonkTagSize;
51  $thisfile_bonk[$BonkTagName]['offset'] = $BonkTagOffset;
52  $this->HandleBonkTags($BonkTagName);
53  $NextTagEndOffset = $BonkTagOffset - 8;
54  if ($NextTagEndOffset < $thisfile_bonk['dataoffset']) {
55  if (empty($info['audio']['encoder'])) {
56  $info['audio']['encoder'] = 'Extended BONK v0.9+';
57  }
58  return true;
59  }
60  $this->fseek($NextTagEndOffset);
61  $PossibleBonkTag = $this->fread(8);
62  }
63 
64  }
65 
66  // seek-from-beginning method for v0.4 and v0.5
67  if (empty($thisfile_bonk['BONK'])) {
68  $this->fseek($thisfile_bonk['dataoffset']);
69  do {
70  $TagHeaderTest = $this->fread(5);
71  switch ($TagHeaderTest) {
72  case "\x00".'BONK':
73  if (empty($info['audio']['encoder'])) {
74  $info['audio']['encoder'] = 'BONK v0.4';
75  }
76  break;
77 
78  case "\x00".'INFO':
79  $info['audio']['encoder'] = 'Extended BONK v0.5';
80  break;
81 
82  default:
83  break 2;
84  }
85  $BonkTagName = substr($TagHeaderTest, 1, 4);
86  $thisfile_bonk[$BonkTagName]['size'] = $thisfile_bonk['dataend'] - $thisfile_bonk['dataoffset'];
87  $thisfile_bonk[$BonkTagName]['offset'] = $thisfile_bonk['dataoffset'];
88  $this->HandleBonkTags($BonkTagName);
89 
90  } while (true);
91  }
92 
93  // parse META block for v0.6 - v0.8
94  if (empty($thisfile_bonk['INFO']) && isset($thisfile_bonk['META']['tags']['info'])) {
95  $this->fseek($thisfile_bonk['META']['tags']['info']);
96  $TagHeaderTest = $this->fread(5);
97  if ($TagHeaderTest == "\x00".'INFO') {
98  $info['audio']['encoder'] = 'Extended BONK v0.6 - v0.8';
99 
100  $BonkTagName = substr($TagHeaderTest, 1, 4);
101  $thisfile_bonk[$BonkTagName]['size'] = $thisfile_bonk['dataend'] - $thisfile_bonk['dataoffset'];
102  $thisfile_bonk[$BonkTagName]['offset'] = $thisfile_bonk['dataoffset'];
103  $this->HandleBonkTags($BonkTagName);
104  }
105  }
106 
107  if (empty($info['audio']['encoder'])) {
108  $info['audio']['encoder'] = 'Extended BONK v0.9+';
109  }
110  if (empty($thisfile_bonk['BONK'])) {
111  unset($info['bonk']);
112  }
113  return true;
114 
115  }
getid3_lib\intValueSupported
static intValueSupported($num)
Definition: getid3.lib.php:80
getid3_lib\LittleEndian2Int
LittleEndian2Int($byteword, $signed=false)
Definition: getid3.lib.php:266
getid3_bonk\BonkIsValidTagName
BonkIsValidTagName($PossibleBonkTag, $ignorecase=false)
Definition: module.audio.bonk.php:198
getid3_bonk\HandleBonkTags
HandleBonkTags(&$fd, &$BonkTagName, &$ThisFileInfo)
Definition: module.audio.bonk.php:107
$info
$info
Definition: example_052.php:80
getid3_handler\fread
fread($bytes)
Definition: getid3.php:1685
getid3_handler\fseek
fseek($bytes, $whence=SEEK_SET)
Definition: getid3.php:1697
getid3_lib\PrintHexBytes
PrintHexBytes($string, $hex=true, $spaces=true, $htmlsafe=true)
Definition: getid3.lib.php:17
getid3_handler\ftell
ftell()
Definition: getid3.php:1678
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◆ BonkIsValidTagName() [1/2]

getid3_bonk::BonkIsValidTagName (   $PossibleBonkTag,
  $ignorecase = false 
)

Definition at line 198 of file module.audio.bonk.php.

Referenced by Analyze(), getid3_bonk(), and HandleBonkTags().

198  {
199  static $BonkIsValidTagName = array('BONK', 'INFO', ' ID3', 'META');
200  foreach ($BonkIsValidTagName as $validtagname) {
201  if ($validtagname == $PossibleBonkTag) {
202  return true;
203  } elseif ($ignorecase && (strtolower($validtagname) == strtolower($PossibleBonkTag))) {
204  return true;
205  }
206  }
207  return false;
208  }
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◆ BonkIsValidTagName() [2/2]

static getid3_bonk::BonkIsValidTagName (   $PossibleBonkTag,
  $ignorecase = false 
)
static

Definition at line 216 of file module.audio.bonk.php.

216  {
217  static $BonkIsValidTagName = array('BONK', 'INFO', ' ID3', 'META');
218  foreach ($BonkIsValidTagName as $validtagname) {
219  if ($validtagname == $PossibleBonkTag) {
220  return true;
221  } elseif ($ignorecase && (strtolower($validtagname) == strtolower($PossibleBonkTag))) {
222  return true;
223  }
224  }
225  return false;
226  }

◆ getid3_bonk()

getid3_bonk::getid3_bonk ( &  $fd,
&  $ThisFileInfo 
)

Definition at line 19 of file module.audio.bonk.php.

References BonkIsValidTagName(), getid3_handler\fread(), getid3_handler\fseek(), getid3_handler\ftell(), HandleBonkTags(), and getid3_lib\LittleEndian2Int().

19  {
20 
21  // shortcut
22  $ThisFileInfo['bonk'] = array();
23  $thisfile_bonk = &$ThisFileInfo['bonk'];
24 
25  $thisfile_bonk['dataoffset'] = $ThisFileInfo['avdataoffset'];
26  $thisfile_bonk['dataend'] = $ThisFileInfo['avdataend'];
27 
28  // scan-from-end method, for v0.6 and higher
29  fseek($fd, $thisfile_bonk['dataend'] - 8, SEEK_SET);
30  $PossibleBonkTag = fread($fd, 8);
31  while ($this->BonkIsValidTagName(substr($PossibleBonkTag, 4, 4), true)) {
32  $BonkTagSize = getid3_lib::LittleEndian2Int(substr($PossibleBonkTag, 0, 4));
33  fseek($fd, 0 - $BonkTagSize, SEEK_CUR);
34  $BonkTagOffset = ftell($fd);
35  $TagHeaderTest = fread($fd, 5);
36  if (($TagHeaderTest{0} != "\x00") || (substr($PossibleBonkTag, 4, 4) != strtolower(substr($PossibleBonkTag, 4, 4)))) {
37  $ThisFileInfo['error'][] = 'Expecting "Ø return false; } $BonkTagName = substr($TagHeaderTest, 1, 4); $thisfile_bonk[$BonkTagName]['size'] = $BonkTagSize; $thisfile_bonk[$BonkTagName]['offset'] = $BonkTagOffset; $this->HandleBonkTags($fd, $BonkTagName, $ThisFileInfo); $NextTagEndOffset = $BonkTagOffset - 8; if ($NextTagEndOffset < $thisfile_bonk['dataoffset']) { if (empty($ThisFileInfo['audio']['encoder'])) { $ThisFileInfo['audio']['encoder'] = 'Extended BONK v0.9+'; } return true; } fseek($fd, $NextTagEndOffset, SEEK_SET); $PossibleBonkTag = fread($fd, 8); } // seek-from-beginning method for v0.4 and v0.5 if (empty($thisfile_bonk['BONK'])) { fseek($fd, $thisfile_bonk['dataoffset'], SEEK_SET); do { $TagHeaderTest = fread($fd, 5); switch ($TagHeaderTest) { case "\x00".'BONK': if (empty($ThisFileInfo['audio']['encoder'])) { $ThisFileInfo['audio']['encoder'] = 'BONK v0.4'; } break; case "\x00".'INFO': $ThisFileInfo['audio']['encoder'] = 'Extended BONK v0.5'; break; default: break 2; } $BonkTagName = substr($TagHeaderTest, 1, 4); $thisfile_bonk[$BonkTagName]['size'] = $thisfile_bonk['dataend'] - $thisfile_bonk['dataoffset']; $thisfile_bonk[$BonkTagName]['offset'] = $thisfile_bonk['dataoffset']; $this->HandleBonkTags($fd, $BonkTagName, $ThisFileInfo); } while (true); } // parse META block for v0.6 - v0.8 if (empty($thisfile_bonk['INFO']) && isset($thisfile_bonk['META']['tags']['info'])) { fseek($fd, $thisfile_bonk['META']['tags']['info'], SEEK_SET); $TagHeaderTest = fread($fd, 5); if ($TagHeaderTest == "\x00".'INFO') { $ThisFileInfo['audio']['encoder'] = 'Extended BONK v0.6 - v0.8'; $BonkTagName = substr($TagHeaderTest, 1, 4); $thisfile_bonk[$BonkTagName]['size'] = $thisfile_bonk['dataend'] - $thisfile_bonk['dataoffset']; $thisfile_bonk[$BonkTagName]['offset'] = $thisfile_bonk['dataoffset']; $this->HandleBonkTags($fd, $BonkTagName, $ThisFileInfo); } } if (empty($ThisFileInfo['audio']['encoder'])) { $ThisFileInfo['audio']['encoder'] = 'Extended BONK v0.9+'; } if (empty($thisfile_bonk['BONK'])) { unset($ThisFileInfo['bonk']); } return true; } '.strtoupper(substr($PossibleBonkTag, 4, 4)).'" at offset '.$BonkTagOffset.', found "'.$TagHeaderTest.'"';
38  return false;
39  }
40  $BonkTagName = substr($TagHeaderTest, 1, 4);
41 
42  $thisfile_bonk[$BonkTagName]['size'] = $BonkTagSize;
43  $thisfile_bonk[$BonkTagName]['offset'] = $BonkTagOffset;
44  $this->HandleBonkTags($fd, $BonkTagName, $ThisFileInfo);
45  $NextTagEndOffset = $BonkTagOffset - 8;
46  if ($NextTagEndOffset < $thisfile_bonk['dataoffset']) {
47  if (empty($ThisFileInfo['audio']['encoder'])) {
48  $ThisFileInfo['audio']['encoder'] = 'Extended BONK v0.9+';
49  }
50  return true;
51  }
52  fseek($fd, $NextTagEndOffset, SEEK_SET);
53  $PossibleBonkTag = fread($fd, 8);
54  }
55 
56  // seek-from-beginning method for v0.4 and v0.5
57  if (empty($thisfile_bonk['BONK'])) {
58  fseek($fd, $thisfile_bonk['dataoffset'], SEEK_SET);
59  do {
60  $TagHeaderTest = fread($fd, 5);
61  switch ($TagHeaderTest) {
62  case "\x00".'BONK':
63  if (empty($ThisFileInfo['audio']['encoder'])) {
64  $ThisFileInfo['audio']['encoder'] = 'BONK v0.4';
65  }
66  break;
67 
68  case "\x00".'INFO':
69  $ThisFileInfo['audio']['encoder'] = 'Extended BONK v0.5';
70  break;
71 
72  default:
73  break 2;
74  }
75  $BonkTagName = substr($TagHeaderTest, 1, 4);
76  $thisfile_bonk[$BonkTagName]['size'] = $thisfile_bonk['dataend'] - $thisfile_bonk['dataoffset'];
77  $thisfile_bonk[$BonkTagName]['offset'] = $thisfile_bonk['dataoffset'];
78  $this->HandleBonkTags($fd, $BonkTagName, $ThisFileInfo);
79 
80  } while (true);
81  }
82 
83  // parse META block for v0.6 - v0.8
84  if (empty($thisfile_bonk['INFO']) && isset($thisfile_bonk['META']['tags']['info'])) {
85  fseek($fd, $thisfile_bonk['META']['tags']['info'], SEEK_SET);
86  $TagHeaderTest = fread($fd, 5);
87  if ($TagHeaderTest == "\x00".'INFO') {
88  $ThisFileInfo['audio']['encoder'] = 'Extended BONK v0.6 - v0.8';
89 
90  $BonkTagName = substr($TagHeaderTest, 1, 4);
91  $thisfile_bonk[$BonkTagName]['size'] = $thisfile_bonk['dataend'] - $thisfile_bonk['dataoffset'];
92  $thisfile_bonk[$BonkTagName]['offset'] = $thisfile_bonk['dataoffset'];
93  $this->HandleBonkTags($fd, $BonkTagName, $ThisFileInfo);
94  }
95  }
96 
97  if (empty($ThisFileInfo['audio']['encoder'])) {
98  $ThisFileInfo['audio']['encoder'] = 'Extended BONK v0.9+';
99  }
100  if (empty($thisfile_bonk['BONK'])) {
101  unset($ThisFileInfo['bonk']);
102  }
103  return true;
104 
105  }
getid3_lib\LittleEndian2Int
LittleEndian2Int($byteword, $signed=false)
Definition: getid3.lib.php:266
getid3_bonk\BonkIsValidTagName
BonkIsValidTagName($PossibleBonkTag, $ignorecase=false)
Definition: module.audio.bonk.php:198
getid3_bonk\HandleBonkTags
HandleBonkTags(&$fd, &$BonkTagName, &$ThisFileInfo)
Definition: module.audio.bonk.php:107
getid3_handler\fread
fread($bytes)
Definition: getid3.php:1685
getid3_handler\fseek
fseek($bytes, $whence=SEEK_SET)
Definition: getid3.php:1697
getid3_handler\ftell
ftell()
Definition: getid3.php:1678
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◆ HandleBonkTags() [1/2]

getid3_bonk::HandleBonkTags ( &  $fd,
&  $BonkTagName,
&  $ThisFileInfo 
)

Definition at line 107 of file module.audio.bonk.php.

References BonkIsValidTagName(), getid3_handler\feof(), getid3_handler\fread(), getid3_handler\fseek(), and getid3_lib\LittleEndian2Int().

Referenced by Analyze(), and getid3_bonk().

107  {
108 
109  switch ($BonkTagName) {
110  case 'BONK':
111  // shortcut
112  $thisfile_bonk_BONK = &$ThisFileInfo['bonk']['BONK'];
113 
114  $BonkData = "\x00".'BONK'.fread($fd, 17);
115  $thisfile_bonk_BONK['version'] = getid3_lib::LittleEndian2Int(substr($BonkData, 5, 1));
116  $thisfile_bonk_BONK['number_samples'] = getid3_lib::LittleEndian2Int(substr($BonkData, 6, 4));
117  $thisfile_bonk_BONK['sample_rate'] = getid3_lib::LittleEndian2Int(substr($BonkData, 10, 4));
118 
119  $thisfile_bonk_BONK['channels'] = getid3_lib::LittleEndian2Int(substr($BonkData, 14, 1));
120  $thisfile_bonk_BONK['lossless'] = (bool) getid3_lib::LittleEndian2Int(substr($BonkData, 15, 1));
121  $thisfile_bonk_BONK['joint_stereo'] = (bool) getid3_lib::LittleEndian2Int(substr($BonkData, 16, 1));
122  $thisfile_bonk_BONK['number_taps'] = getid3_lib::LittleEndian2Int(substr($BonkData, 17, 2));
123  $thisfile_bonk_BONK['downsampling_ratio'] = getid3_lib::LittleEndian2Int(substr($BonkData, 19, 1));
124  $thisfile_bonk_BONK['samples_per_packet'] = getid3_lib::LittleEndian2Int(substr($BonkData, 20, 2));
125 
126  $ThisFileInfo['avdataoffset'] = $thisfile_bonk_BONK['offset'] + 5 + 17;
127  $ThisFileInfo['avdataend'] = $thisfile_bonk_BONK['offset'] + $thisfile_bonk_BONK['size'];
128 
129  $ThisFileInfo['fileformat'] = 'bonk';
130  $ThisFileInfo['audio']['dataformat'] = 'bonk';
131  $ThisFileInfo['audio']['bitrate_mode'] = 'vbr'; // assumed
132  $ThisFileInfo['audio']['channels'] = $thisfile_bonk_BONK['channels'];
133  $ThisFileInfo['audio']['sample_rate'] = $thisfile_bonk_BONK['sample_rate'];
134  $ThisFileInfo['audio']['channelmode'] = ($thisfile_bonk_BONK['joint_stereo'] ? 'joint stereo' : 'stereo');
135  $ThisFileInfo['audio']['lossless'] = $thisfile_bonk_BONK['lossless'];
136  $ThisFileInfo['audio']['codec'] = 'bonk';
137 
138  $ThisFileInfo['playtime_seconds'] = $thisfile_bonk_BONK['number_samples'] / ($thisfile_bonk_BONK['sample_rate'] * $thisfile_bonk_BONK['channels']);
139  if ($ThisFileInfo['playtime_seconds'] > 0) {
140  $ThisFileInfo['audio']['bitrate'] = (($ThisFileInfo['bonk']['dataend'] - $ThisFileInfo['bonk']['dataoffset']) * 8) / $ThisFileInfo['playtime_seconds'];
141  }
142  break;
143 
144  case 'INFO':
145  // shortcut
146  $thisfile_bonk_INFO = &$ThisFileInfo['bonk']['INFO'];
147 
148  $thisfile_bonk_INFO['version'] = getid3_lib::LittleEndian2Int(fread($fd, 1));
149  $thisfile_bonk_INFO['entries_count'] = 0;
150  $NextInfoDataPair = fread($fd, 5);
151  if (!$this->BonkIsValidTagName(substr($NextInfoDataPair, 1, 4))) {
152  while (!feof($fd)) {
153  //$CurrentSeekInfo['offset'] = getid3_lib::LittleEndian2Int(substr($NextInfoDataPair, 0, 4));
154  //$CurrentSeekInfo['nextbit'] = getid3_lib::LittleEndian2Int(substr($NextInfoDataPair, 4, 1));
155  //$thisfile_bonk_INFO[] = $CurrentSeekInfo;
156 
157  $NextInfoDataPair = fread($fd, 5);
158  if ($this->BonkIsValidTagName(substr($NextInfoDataPair, 1, 4))) {
159  fseek($fd, -5, SEEK_CUR);
160  break;
161  }
162  $thisfile_bonk_INFO['entries_count']++;
163  }
164  }
165  break;
166 
167  case 'META':
168  $BonkData = "\x00".'META'.fread($fd, $ThisFileInfo['bonk']['META']['size'] - 5);
169  $ThisFileInfo['bonk']['META']['version'] = getid3_lib::LittleEndian2Int(substr($BonkData, 5, 1));
170 
171  $MetaTagEntries = floor(((strlen($BonkData) - 8) - 6) / 8); // BonkData - xxxxmeta - ØMETA
172  $offset = 6;
173  for ($i = 0; $i < $MetaTagEntries; $i++) {
174  $MetaEntryTagName = substr($BonkData, $offset, 4);
175  $offset += 4;
176  $MetaEntryTagOffset = getid3_lib::LittleEndian2Int(substr($BonkData, $offset, 4));
177  $offset += 4;
178  $ThisFileInfo['bonk']['META']['tags'][$MetaEntryTagName] = $MetaEntryTagOffset;
179  }
180  break;
181 
182  case ' ID3':
183  $ThisFileInfo['audio']['encoder'] = 'Extended BONK v0.9+';
184 
185  // ID3v2 checking is optional
186  if (class_exists('getid3_id3v2')) {
187  $ThisFileInfo['bonk'][' ID3']['valid'] = new getid3_id3v2($fd, $ThisFileInfo, $ThisFileInfo['bonk'][' ID3']['offset'] + 2);
188  }
189  break;
190 
191  default:
192  $ThisFileInfo['warning'][] = 'Unexpected Bonk tag "'.$BonkTagName.'" at offset '.$ThisFileInfo['bonk'][$BonkTagName]['offset'];
193  break;
194 
195  }
196  }
getid3_lib\LittleEndian2Int
LittleEndian2Int($byteword, $signed=false)
Definition: getid3.lib.php:266
getid3_bonk\BonkIsValidTagName
BonkIsValidTagName($PossibleBonkTag, $ignorecase=false)
Definition: module.audio.bonk.php:198
getid3_handler\fread
fread($bytes)
Definition: getid3.php:1685
getid3_id3v2
Definition: module.tag.id3v2.php:18
getid3_handler\feof
feof()
Definition: getid3.php:1727
getid3_handler\fseek
fseek($bytes, $whence=SEEK_SET)
Definition: getid3.php:1697
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◆ HandleBonkTags() [2/2]

getid3_bonk::HandleBonkTags (   $BonkTagName)

Definition at line 117 of file module.audio.bonk.php.

References $info, BonkIsValidTagName(), getid3_handler\feof(), getid3_handler\fread(), getid3_handler\fseek(), and getid3_lib\LittleEndian2Int().

117  {
118  $info = &$this->getid3->info;
119  switch ($BonkTagName) {
120  case 'BONK':
121  // shortcut
122  $thisfile_bonk_BONK = &$info['bonk']['BONK'];
123 
124  $BonkData = "\x00".'BONK'.$this->fread(17);
125  $thisfile_bonk_BONK['version'] = getid3_lib::LittleEndian2Int(substr($BonkData, 5, 1));
126  $thisfile_bonk_BONK['number_samples'] = getid3_lib::LittleEndian2Int(substr($BonkData, 6, 4));
127  $thisfile_bonk_BONK['sample_rate'] = getid3_lib::LittleEndian2Int(substr($BonkData, 10, 4));
128 
129  $thisfile_bonk_BONK['channels'] = getid3_lib::LittleEndian2Int(substr($BonkData, 14, 1));
130  $thisfile_bonk_BONK['lossless'] = (bool) getid3_lib::LittleEndian2Int(substr($BonkData, 15, 1));
131  $thisfile_bonk_BONK['joint_stereo'] = (bool) getid3_lib::LittleEndian2Int(substr($BonkData, 16, 1));
132  $thisfile_bonk_BONK['number_taps'] = getid3_lib::LittleEndian2Int(substr($BonkData, 17, 2));
133  $thisfile_bonk_BONK['downsampling_ratio'] = getid3_lib::LittleEndian2Int(substr($BonkData, 19, 1));
134  $thisfile_bonk_BONK['samples_per_packet'] = getid3_lib::LittleEndian2Int(substr($BonkData, 20, 2));
135 
136  $info['avdataoffset'] = $thisfile_bonk_BONK['offset'] + 5 + 17;
137  $info['avdataend'] = $thisfile_bonk_BONK['offset'] + $thisfile_bonk_BONK['size'];
138 
139  $info['fileformat'] = 'bonk';
140  $info['audio']['dataformat'] = 'bonk';
141  $info['audio']['bitrate_mode'] = 'vbr'; // assumed
142  $info['audio']['channels'] = $thisfile_bonk_BONK['channels'];
143  $info['audio']['sample_rate'] = $thisfile_bonk_BONK['sample_rate'];
144  $info['audio']['channelmode'] = ($thisfile_bonk_BONK['joint_stereo'] ? 'joint stereo' : 'stereo');
145  $info['audio']['lossless'] = $thisfile_bonk_BONK['lossless'];
146  $info['audio']['codec'] = 'bonk';
147 
148  $info['playtime_seconds'] = $thisfile_bonk_BONK['number_samples'] / ($thisfile_bonk_BONK['sample_rate'] * $thisfile_bonk_BONK['channels']);
149  if ($info['playtime_seconds'] > 0) {
150  $info['audio']['bitrate'] = (($info['bonk']['dataend'] - $info['bonk']['dataoffset']) * 8) / $info['playtime_seconds'];
151  }
152  break;
153 
154  case 'INFO':
155  // shortcut
156  $thisfile_bonk_INFO = &$info['bonk']['INFO'];
157 
158  $thisfile_bonk_INFO['version'] = getid3_lib::LittleEndian2Int($this->fread(1));
159  $thisfile_bonk_INFO['entries_count'] = 0;
160  $NextInfoDataPair = $this->fread(5);
161  if (!$this->BonkIsValidTagName(substr($NextInfoDataPair, 1, 4))) {
162  while (!feof($this->getid3->fp)) {
163  //$CurrentSeekInfo['offset'] = getid3_lib::LittleEndian2Int(substr($NextInfoDataPair, 0, 4));
164  //$CurrentSeekInfo['nextbit'] = getid3_lib::LittleEndian2Int(substr($NextInfoDataPair, 4, 1));
165  //$thisfile_bonk_INFO[] = $CurrentSeekInfo;
166 
167  $NextInfoDataPair = $this->fread(5);
168  if ($this->BonkIsValidTagName(substr($NextInfoDataPair, 1, 4))) {
169  $this->fseek(-5, SEEK_CUR);
170  break;
171  }
172  $thisfile_bonk_INFO['entries_count']++;
173  }
174  }
175  break;
176 
177  case 'META':
178  $BonkData = "\x00".'META'.$this->fread($info['bonk']['META']['size'] - 5);
179  $info['bonk']['META']['version'] = getid3_lib::LittleEndian2Int(substr($BonkData, 5, 1));
180 
181  $MetaTagEntries = floor(((strlen($BonkData) - 8) - 6) / 8); // BonkData - xxxxmeta - ØMETA
182  $offset = 6;
183  for ($i = 0; $i < $MetaTagEntries; $i++) {
184  $MetaEntryTagName = substr($BonkData, $offset, 4);
185  $offset += 4;
186  $MetaEntryTagOffset = getid3_lib::LittleEndian2Int(substr($BonkData, $offset, 4));
187  $offset += 4;
188  $info['bonk']['META']['tags'][$MetaEntryTagName] = $MetaEntryTagOffset;
189  }
190  break;
191 
192  case ' ID3':
193  $info['audio']['encoder'] = 'Extended BONK v0.9+';
194 
195  // ID3v2 checking is optional
196  if (class_exists('getid3_id3v2')) {
197  $getid3_temp = new getID3();
198  $getid3_temp->openfile($this->getid3->filename);
199  $getid3_id3v2 = new getid3_id3v2($getid3_temp);
200  $getid3_id3v2->StartingOffset = $info['bonk'][' ID3']['offset'] + 2;
201  $info['bonk'][' ID3']['valid'] = $getid3_id3v2->Analyze();
202  if ($info['bonk'][' ID3']['valid']) {
203  $info['id3v2'] = $getid3_temp->info['id3v2'];
204  }
205  unset($getid3_temp, $getid3_id3v2);
206  }
207  break;
208 
209  default:
210  $info['warning'][] = 'Unexpected Bonk tag "'.$BonkTagName.'" at offset '.$info['bonk'][$BonkTagName]['offset'];
211  break;
212 
213  }
214  }
getid3_lib\LittleEndian2Int
LittleEndian2Int($byteword, $signed=false)
Definition: getid3.lib.php:266
getid3_bonk\BonkIsValidTagName
BonkIsValidTagName($PossibleBonkTag, $ignorecase=false)
Definition: module.audio.bonk.php:198
$info
$info
Definition: example_052.php:80
getid3_handler\fread
fread($bytes)
Definition: getid3.php:1685
getid3_id3v2
Definition: module.tag.id3v2.php:18
getid3_handler\feof
feof()
Definition: getid3.php:1727
getid3_handler\fseek
fseek($bytes, $whence=SEEK_SET)
Definition: getid3.php:1697
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The documentation for this class was generated from the following file: