ILIAS  release_5-1 Revision 5.0.0-5477-g43f3e3fab5f
Public Member Functions | Static Public Member Functions
getid3_optimfrog Class Reference
+ Inheritance diagram for getid3_optimfrog:
+ Collaboration diagram for getid3_optimfrog:

Public Member Functions

 getid3_optimfrog (&$fd, &$ThisFileInfo)
 
 ParseOptimFROGheader42 (&$fd, &$ThisFileInfo)
 
 ParseOptimFROGheader45 (&$fd, &$ThisFileInfo)
 
 OptimFROGsampleTypeLookup ($SampleType)
 
 OptimFROGbitsPerSampleTypeLookup ($SampleType)
 
 OptimFROGchannelConfigurationLookup ($ChannelConfiguration)
 
 OptimFROGchannelConfigNumChannelsLookup ($ChannelConfiguration)
 
 OptimFROGencoderNameLookup ($EncoderID)
 
 OptimFROGcompressionLookup ($CompressionID)
 
 OptimFROGspeedupLookup ($CompressionID)
 
 Analyze ()
 
 ParseOptimFROGheader42 ()
 
 ParseOptimFROGheader45 ()
 
- 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 OptimFROGsampleTypeLookup ($SampleType)
 
static OptimFROGbitsPerSampleTypeLookup ($SampleType)
 
static OptimFROGchannelConfigurationLookup ($ChannelConfiguration)
 
static OptimFROGchannelConfigNumChannelsLookup ($ChannelConfiguration)
 
static OptimFROGencoderNameLookup ($EncoderID)
 
static OptimFROGcompressionLookup ($CompressionID)
 
static OptimFROGspeedupLookup ($CompressionID)
 

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

Definition at line 18 of file module.audio.optimfrog.php.

Member Function Documentation

◆ Analyze()

getid3_optimfrog::Analyze ( )

Definition at line 22 of file module.audio.optimfrog.php.

References $info, getid3_handler\fread(), getid3_handler\fseek(), ParseOptimFROGheader42(), ParseOptimFROGheader45(), and getid3_lib\PrintHexBytes().

22  {
23  $info = &$this->getid3->info;
24 
25  $info['fileformat'] = 'ofr';
26  $info['audio']['dataformat'] = 'ofr';
27  $info['audio']['bitrate_mode'] = 'vbr';
28  $info['audio']['lossless'] = true;
29 
30  $this->fseek($info['avdataoffset']);
31  $OFRheader = $this->fread(8);
32  if (substr($OFRheader, 0, 5) == '*RIFF') {
33 
34  return $this->ParseOptimFROGheader42();
35 
36  } elseif (substr($OFRheader, 0, 3) == 'OFR') {
37 
38  return $this->ParseOptimFROGheader45();
39 
40  }
41 
42  $info['error'][] = 'Expecting "*RIFF" or "OFR " at offset '.$info['avdataoffset'].', found "'.getid3_lib::PrintHexBytes($OFRheader).'"';
43  unset($info['fileformat']);
44  return false;
45  }
getid3_optimfrog\ParseOptimFROGheader42
ParseOptimFROGheader42()
Definition: module.audio.optimfrog.php:48
$info
$info
Definition: example_052.php:80
getid3_handler\fread
fread($bytes)
Definition: getid3.php:1685
getid3_optimfrog\ParseOptimFROGheader45
ParseOptimFROGheader45()
Definition: module.audio.optimfrog.php:95
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
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◆ getid3_optimfrog()

getid3_optimfrog::getid3_optimfrog ( &  $fd,
&  $ThisFileInfo 
)

Definition at line 21 of file module.audio.optimfrog.php.

References getid3_handler\fread(), getid3_handler\fseek(), ParseOptimFROGheader42(), and ParseOptimFROGheader45().

21  {
22  $ThisFileInfo['fileformat'] = 'ofr';
23  $ThisFileInfo['audio']['dataformat'] = 'ofr';
24  $ThisFileInfo['audio']['bitrate_mode'] = 'vbr';
25  $ThisFileInfo['audio']['lossless'] = true;
26 
27  fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET);
28  $OFRheader = fread($fd, 8);
29  if (substr($OFRheader, 0, 5) == '*RIFF') {
30 
31  return $this->ParseOptimFROGheader42($fd, $ThisFileInfo);
32 
33  } elseif (substr($OFRheader, 0, 3) == 'OFR') {
34 
35  return $this->ParseOptimFROGheader45($fd, $ThisFileInfo);
36 
37  }
38 
39  $ThisFileInfo['error'][] = 'Expecting "*RIFF" or "OFR " at offset '.$ThisFileInfo['avdataoffset'].', found "'.$OFRheader.'"';
40  unset($ThisFileInfo['fileformat']);
41  return false;
42  }
getid3_optimfrog\ParseOptimFROGheader42
ParseOptimFROGheader42()
Definition: module.audio.optimfrog.php:48
getid3_handler\fread
fread($bytes)
Definition: getid3.php:1685
getid3_optimfrog\ParseOptimFROGheader45
ParseOptimFROGheader45()
Definition: module.audio.optimfrog.php:95
getid3_handler\fseek
fseek($bytes, $whence=SEEK_SET)
Definition: getid3.php:1697
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◆ OptimFROGbitsPerSampleTypeLookup() [1/2]

getid3_optimfrog::OptimFROGbitsPerSampleTypeLookup (   $SampleType)

Definition at line 311 of file module.audio.optimfrog.php.

Referenced by ParseOptimFROGheader45().

311  {
312  static $OptimFROGbitsPerSampleTypeLookup = array(
313  0 => 8,
314  1 => 8,
315  2 => 16,
316  3 => 16,
317  4 => 24,
318  5 => 24,
319  6 => 32,
320  7 => 32,
321  8 => 32,
322  9 => 32,
323  10 => 32
324  );
325  return (isset($OptimFROGbitsPerSampleTypeLookup[$SampleType]) ? $OptimFROGbitsPerSampleTypeLookup[$SampleType] : false);
326  }
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◆ OptimFROGbitsPerSampleTypeLookup() [2/2]

static getid3_optimfrog::OptimFROGbitsPerSampleTypeLookup (   $SampleType)
static

Definition at line 334 of file module.audio.optimfrog.php.

334  {
335  static $OptimFROGbitsPerSampleTypeLookup = array(
336  0 => 8,
337  1 => 8,
338  2 => 16,
339  3 => 16,
340  4 => 24,
341  5 => 24,
342  6 => 32,
343  7 => 32,
344  8 => 32,
345  9 => 32,
346  10 => 32
347  );
348  return (isset($OptimFROGbitsPerSampleTypeLookup[$SampleType]) ? $OptimFROGbitsPerSampleTypeLookup[$SampleType] : false);
349  }

◆ OptimFROGchannelConfigNumChannelsLookup() [1/2]

getid3_optimfrog::OptimFROGchannelConfigNumChannelsLookup (   $ChannelConfiguration)

Definition at line 336 of file module.audio.optimfrog.php.

Referenced by ParseOptimFROGheader45().

336  {
337  static $OptimFROGchannelConfigNumChannelsLookup = array(
338  0 => 1,
339  1 => 2
340  );
341  return (isset($OptimFROGchannelConfigNumChannelsLookup[$ChannelConfiguration]) ? $OptimFROGchannelConfigNumChannelsLookup[$ChannelConfiguration] : false);
342  }
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◆ OptimFROGchannelConfigNumChannelsLookup() [2/2]

static getid3_optimfrog::OptimFROGchannelConfigNumChannelsLookup (   $ChannelConfiguration)
static

Definition at line 359 of file module.audio.optimfrog.php.

359  {
360  static $OptimFROGchannelConfigNumChannelsLookup = array(
361  0 => 1,
362  1 => 2
363  );
364  return (isset($OptimFROGchannelConfigNumChannelsLookup[$ChannelConfiguration]) ? $OptimFROGchannelConfigNumChannelsLookup[$ChannelConfiguration] : false);
365  }

◆ OptimFROGchannelConfigurationLookup() [1/2]

getid3_optimfrog::OptimFROGchannelConfigurationLookup (   $ChannelConfiguration)

Definition at line 328 of file module.audio.optimfrog.php.

Referenced by ParseOptimFROGheader45().

328  {
329  static $OptimFROGchannelConfigurationLookup = array(
330  0 => 'mono',
331  1 => 'stereo'
332  );
333  return (isset($OptimFROGchannelConfigurationLookup[$ChannelConfiguration]) ? $OptimFROGchannelConfigurationLookup[$ChannelConfiguration] : false);
334  }
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◆ OptimFROGchannelConfigurationLookup() [2/2]

static getid3_optimfrog::OptimFROGchannelConfigurationLookup (   $ChannelConfiguration)
static

Definition at line 351 of file module.audio.optimfrog.php.

351  {
352  static $OptimFROGchannelConfigurationLookup = array(
353  0 => 'mono',
354  1 => 'stereo'
355  );
356  return (isset($OptimFROGchannelConfigurationLookup[$ChannelConfiguration]) ? $OptimFROGchannelConfigurationLookup[$ChannelConfiguration] : false);
357  }

◆ OptimFROGcompressionLookup() [1/2]

getid3_optimfrog::OptimFROGcompressionLookup (   $CompressionID)

Definition at line 367 of file module.audio.optimfrog.php.

Referenced by ParseOptimFROGheader45().

367  {
368  // mode = compression >> 3
369  // speedup = compression & 0x07
370 
371  $CompressionModeID = ($CompressionID & 0xF8) >> 3;
372  //$CompressionSpeedupID = ($CompressionID & 0x07);
373 
374  static $OptimFROGencoderModeLookup = array(
375  0x00 => 'fast',
376  0x01 => 'normal',
377  0x02 => 'high',
378  0x03 => 'extra', // extranew (some versions)
379  0x04 => 'best', // bestnew (some versions)
380  0x05 => 'ultra',
381  0x06 => 'insane',
382  0x07 => 'highnew',
383  0x08 => 'extranew',
384  0x09 => 'bestnew'
385  );
386  return (isset($OptimFROGencoderModeLookup[$CompressionModeID]) ? $OptimFROGencoderModeLookup[$CompressionModeID] : 'undefined mode (0x'.str_pad(dechex($CompressionModeID), 2, '0', STR_PAD_LEFT).')');
387  }
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◆ OptimFROGcompressionLookup() [2/2]

static getid3_optimfrog::OptimFROGcompressionLookup (   $CompressionID)
static

Definition at line 390 of file module.audio.optimfrog.php.

390  {
391  // mode = compression >> 3
392  // speedup = compression & 0x07
393 
394  $CompressionModeID = ($CompressionID & 0xF8) >> 3;
395  //$CompressionSpeedupID = ($CompressionID & 0x07);
396 
397  static $OptimFROGencoderModeLookup = array(
398  0x00 => 'fast',
399  0x01 => 'normal',
400  0x02 => 'high',
401  0x03 => 'extra', // extranew (some versions)
402  0x04 => 'best', // bestnew (some versions)
403  0x05 => 'ultra',
404  0x06 => 'insane',
405  0x07 => 'highnew',
406  0x08 => 'extranew',
407  0x09 => 'bestnew'
408  );
409  return (isset($OptimFROGencoderModeLookup[$CompressionModeID]) ? $OptimFROGencoderModeLookup[$CompressionModeID] : 'undefined mode (0x'.str_pad(dechex($CompressionModeID), 2, '0', STR_PAD_LEFT).')');
410  }

◆ OptimFROGencoderNameLookup() [1/2]

getid3_optimfrog::OptimFROGencoderNameLookup (   $EncoderID)

Definition at line 352 of file module.audio.optimfrog.php.

Referenced by ParseOptimFROGheader45().

352  {
353  // version = (encoderID >> 4) + 4500
354  // system = encoderID & 0xF
355 
356  $EncoderVersion = number_format(((($EncoderID & 0xF0) >> 4) + 4500) / 1000, 3);
357  $EncoderSystemID = ($EncoderID & 0x0F);
358 
359  static $OptimFROGencoderSystemLookup = array(
360  0x00 => 'Windows console',
361  0x01 => 'Linux console',
362  0x0F => 'unknown'
363  );
364  return $EncoderVersion.' ('.(isset($OptimFROGencoderSystemLookup[$EncoderSystemID]) ? $OptimFROGencoderSystemLookup[$EncoderSystemID] : 'undefined encoder type (0x'.dechex($EncoderSystemID).')').')';
365  }
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◆ OptimFROGencoderNameLookup() [2/2]

static getid3_optimfrog::OptimFROGencoderNameLookup (   $EncoderID)
static

Definition at line 375 of file module.audio.optimfrog.php.

375  {
376  // version = (encoderID >> 4) + 4500
377  // system = encoderID & 0xF
378 
379  $EncoderVersion = number_format(((($EncoderID & 0xF0) >> 4) + 4500) / 1000, 3);
380  $EncoderSystemID = ($EncoderID & 0x0F);
381 
382  static $OptimFROGencoderSystemLookup = array(
383  0x00 => 'Windows console',
384  0x01 => 'Linux console',
385  0x0F => 'unknown'
386  );
387  return $EncoderVersion.' ('.(isset($OptimFROGencoderSystemLookup[$EncoderSystemID]) ? $OptimFROGencoderSystemLookup[$EncoderSystemID] : 'undefined encoder type (0x'.dechex($EncoderSystemID).')').')';
388  }

◆ OptimFROGsampleTypeLookup() [1/2]

getid3_optimfrog::OptimFROGsampleTypeLookup (   $SampleType)

Definition at line 294 of file module.audio.optimfrog.php.

Referenced by ParseOptimFROGheader45().

294  {
295  static $OptimFROGsampleTypeLookup = array(
296  0 => 'unsigned int (8-bit)',
297  1 => 'signed int (8-bit)',
298  2 => 'unsigned int (16-bit)',
299  3 => 'signed int (16-bit)',
300  4 => 'unsigned int (24-bit)',
301  5 => 'signed int (24-bit)',
302  6 => 'unsigned int (32-bit)',
303  7 => 'signed int (32-bit)',
304  8 => 'float 0.24 (32-bit)',
305  9 => 'float 16.8 (32-bit)',
306  10 => 'float 24.0 (32-bit)'
307  );
308  return (isset($OptimFROGsampleTypeLookup[$SampleType]) ? $OptimFROGsampleTypeLookup[$SampleType] : false);
309  }
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◆ OptimFROGsampleTypeLookup() [2/2]

static getid3_optimfrog::OptimFROGsampleTypeLookup (   $SampleType)
static

Definition at line 317 of file module.audio.optimfrog.php.

317  {
318  static $OptimFROGsampleTypeLookup = array(
319  0 => 'unsigned int (8-bit)',
320  1 => 'signed int (8-bit)',
321  2 => 'unsigned int (16-bit)',
322  3 => 'signed int (16-bit)',
323  4 => 'unsigned int (24-bit)',
324  5 => 'signed int (24-bit)',
325  6 => 'unsigned int (32-bit)',
326  7 => 'signed int (32-bit)',
327  8 => 'float 0.24 (32-bit)',
328  9 => 'float 16.8 (32-bit)',
329  10 => 'float 24.0 (32-bit)'
330  );
331  return (isset($OptimFROGsampleTypeLookup[$SampleType]) ? $OptimFROGsampleTypeLookup[$SampleType] : false);
332  }

◆ OptimFROGspeedupLookup() [1/2]

getid3_optimfrog::OptimFROGspeedupLookup (   $CompressionID)

Definition at line 389 of file module.audio.optimfrog.php.

Referenced by ParseOptimFROGheader45().

389  {
390  // mode = compression >> 3
391  // speedup = compression & 0x07
392 
393  //$CompressionModeID = ($CompressionID & 0xF8) >> 3;
394  $CompressionSpeedupID = ($CompressionID & 0x07);
395 
396  static $OptimFROGencoderSpeedupLookup = array(
397  0x00 => '1x',
398  0x01 => '2x',
399  0x02 => '4x'
400  );
401 
402  return (isset($OptimFROGencoderSpeedupLookup[$CompressionSpeedupID]) ? $OptimFROGencoderSpeedupLookup[$CompressionSpeedupID] : 'undefined mode (0x'.dechex($CompressionSpeedupID));
403  }
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◆ OptimFROGspeedupLookup() [2/2]

static getid3_optimfrog::OptimFROGspeedupLookup (   $CompressionID)
static

Definition at line 412 of file module.audio.optimfrog.php.

412  {
413  // mode = compression >> 3
414  // speedup = compression & 0x07
415 
416  //$CompressionModeID = ($CompressionID & 0xF8) >> 3;
417  $CompressionSpeedupID = ($CompressionID & 0x07);
418 
419  static $OptimFROGencoderSpeedupLookup = array(
420  0x00 => '1x',
421  0x01 => '2x',
422  0x02 => '4x'
423  );
424  return (isset($OptimFROGencoderSpeedupLookup[$CompressionSpeedupID]) ? $OptimFROGencoderSpeedupLookup[$CompressionSpeedupID] : 'undefined mode (0x'.dechex($CompressionSpeedupID));
425  }

◆ ParseOptimFROGheader42() [1/2]

getid3_optimfrog::ParseOptimFROGheader42 ( &  $fd,
&  $ThisFileInfo 
)

Definition at line 45 of file module.audio.optimfrog.php.

References getid3_handler\fread(), getid3_handler\fseek(), getid3_lib\LittleEndian2Int(), and getid3_riff\ParseRIFFdata().

45  {
46  // for fileformat of v4.21 and older
47 
48  fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET);
49  $OptimFROGheaderData = fread($fd, 45);
50  $ThisFileInfo['avdataoffset'] = 45;
51 
52  $OptimFROGencoderVersion_raw = getid3_lib::LittleEndian2Int(substr($OptimFROGheaderData, 0, 1));
53  $OptimFROGencoderVersion_major = floor($OptimFROGencoderVersion_raw / 10);
54  $OptimFROGencoderVersion_minor = $OptimFROGencoderVersion_raw - ($OptimFROGencoderVersion_major * 10);
55  $RIFFdata = substr($OptimFROGheaderData, 1, 44);
56  $OrignalRIFFheaderSize = getid3_lib::LittleEndian2Int(substr($RIFFdata, 4, 4)) + 8;
57  $OrignalRIFFdataSize = getid3_lib::LittleEndian2Int(substr($RIFFdata, 40, 4)) + 44;
58 
59  if ($OrignalRIFFheaderSize > $OrignalRIFFdataSize) {
60  $ThisFileInfo['avdataend'] -= ($OrignalRIFFheaderSize - $OrignalRIFFdataSize);
61  fseek($fd, $ThisFileInfo['avdataend'], SEEK_SET);
62  $RIFFdata .= fread($fd, $OrignalRIFFheaderSize - $OrignalRIFFdataSize);
63  }
64 
65  // move the data chunk after all other chunks (if any)
66  // so that the RIFF parser doesn't see EOF when trying
67  // to skip over the data chunk
68  $RIFFdata = substr($RIFFdata, 0, 36).substr($RIFFdata, 44).substr($RIFFdata, 36, 8);
69  getid3_riff::ParseRIFFdata($RIFFdata, $ThisFileInfo);
70 
71  $ThisFileInfo['audio']['encoder'] = 'OptimFROG '.$OptimFROGencoderVersion_major.'.'.$OptimFROGencoderVersion_minor;
72  $ThisFileInfo['audio']['channels'] = $ThisFileInfo['riff']['audio'][0]['channels'];
73  $ThisFileInfo['audio']['sample_rate'] = $ThisFileInfo['riff']['audio'][0]['sample_rate'];
74  $ThisFileInfo['audio']['bits_per_sample'] = $ThisFileInfo['riff']['audio'][0]['bits_per_sample'];
75  $ThisFileInfo['playtime_seconds'] = $OrignalRIFFdataSize / ($ThisFileInfo['audio']['channels'] * $ThisFileInfo['audio']['sample_rate'] * ($ThisFileInfo['audio']['bits_per_sample'] / 8));
76  $ThisFileInfo['audio']['bitrate'] = (($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) * 8) / $ThisFileInfo['playtime_seconds'];
77 
78  return true;
79  }
getid3_lib\LittleEndian2Int
LittleEndian2Int($byteword, $signed=false)
Definition: getid3.lib.php:266
getid3_handler\fread
fread($bytes)
Definition: getid3.php:1685
getid3_riff\ParseRIFFdata
ParseRIFFdata(&$RIFFdata, &$ThisFileInfo)
Definition: module.audio-video.riff.php:1310
getid3_handler\fseek
fseek($bytes, $whence=SEEK_SET)
Definition: getid3.php:1697
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◆ ParseOptimFROGheader42() [2/2]

getid3_optimfrog::ParseOptimFROGheader42 ( )

Definition at line 48 of file module.audio.optimfrog.php.

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

Referenced by Analyze(), and getid3_optimfrog().

48  {
49  // for fileformat of v4.21 and older
50 
51  $info = &$this->getid3->info;
52  $this->fseek($info['avdataoffset']);
53  $OptimFROGheaderData = $this->fread(45);
54  $info['avdataoffset'] = 45;
55 
56  $OptimFROGencoderVersion_raw = getid3_lib::LittleEndian2Int(substr($OptimFROGheaderData, 0, 1));
57  $OptimFROGencoderVersion_major = floor($OptimFROGencoderVersion_raw / 10);
58  $OptimFROGencoderVersion_minor = $OptimFROGencoderVersion_raw - ($OptimFROGencoderVersion_major * 10);
59  $RIFFdata = substr($OptimFROGheaderData, 1, 44);
60  $OrignalRIFFheaderSize = getid3_lib::LittleEndian2Int(substr($RIFFdata, 4, 4)) + 8;
61  $OrignalRIFFdataSize = getid3_lib::LittleEndian2Int(substr($RIFFdata, 40, 4)) + 44;
62 
63  if ($OrignalRIFFheaderSize > $OrignalRIFFdataSize) {
64  $info['avdataend'] -= ($OrignalRIFFheaderSize - $OrignalRIFFdataSize);
65  $this->fseek($info['avdataend']);
66  $RIFFdata .= $this->fread($OrignalRIFFheaderSize - $OrignalRIFFdataSize);
67  }
68 
69  // move the data chunk after all other chunks (if any)
70  // so that the RIFF parser doesn't see EOF when trying
71  // to skip over the data chunk
72  $RIFFdata = substr($RIFFdata, 0, 36).substr($RIFFdata, 44).substr($RIFFdata, 36, 8);
73 
74  $getid3_temp = new getID3();
75  $getid3_temp->openfile($this->getid3->filename);
76  $getid3_temp->info['avdataoffset'] = $info['avdataoffset'];
77  $getid3_temp->info['avdataend'] = $info['avdataend'];
78  $getid3_riff = new getid3_riff($getid3_temp);
79  $getid3_riff->ParseRIFFdata($RIFFdata);
80  $info['riff'] = $getid3_temp->info['riff'];
81 
82  $info['audio']['encoder'] = 'OptimFROG '.$OptimFROGencoderVersion_major.'.'.$OptimFROGencoderVersion_minor;
83  $info['audio']['channels'] = $info['riff']['audio'][0]['channels'];
84  $info['audio']['sample_rate'] = $info['riff']['audio'][0]['sample_rate'];
85  $info['audio']['bits_per_sample'] = $info['riff']['audio'][0]['bits_per_sample'];
86  $info['playtime_seconds'] = $OrignalRIFFdataSize / ($info['audio']['channels'] * $info['audio']['sample_rate'] * ($info['audio']['bits_per_sample'] / 8));
87  $info['audio']['bitrate'] = (($info['avdataend'] - $info['avdataoffset']) * 8) / $info['playtime_seconds'];
88 
89  unset($getid3_riff, $getid3_temp, $RIFFdata);
90 
91  return true;
92  }
getid3_lib\LittleEndian2Int
LittleEndian2Int($byteword, $signed=false)
Definition: getid3.lib.php:266
$info
$info
Definition: example_052.php:80
getid3_handler\fread
fread($bytes)
Definition: getid3.php:1685
getid3_riff
Definition: module.audio-video.riff.php:21
getid3_handler\fseek
fseek($bytes, $whence=SEEK_SET)
Definition: getid3.php:1697
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◆ ParseOptimFROGheader45() [1/2]

getid3_optimfrog::ParseOptimFROGheader45 ( &  $fd,
&  $ThisFileInfo 
)

Definition at line 82 of file module.audio.optimfrog.php.

References getid3_handler\feof(), getid3_lib\fileextension(), getid3_handler\fread(), getid3_handler\fseek(), getid3_handler\ftell(), getid3_lib\LittleEndian2Int(), OptimFROGbitsPerSampleTypeLookup(), OptimFROGchannelConfigNumChannelsLookup(), OptimFROGchannelConfigurationLookup(), OptimFROGcompressionLookup(), OptimFROGencoderNameLookup(), OptimFROGsampleTypeLookup(), OptimFROGspeedupLookup(), getid3_riff\ParseRIFFdata(), and getid3_lib\PrintHexBytes().

82  {
83  // for fileformat of v4.50a and higher
84 
85  $RIFFdata = '';
86  fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET);
87  while (!feof($fd) && (ftell($fd) < $ThisFileInfo['avdataend'])) {
88  $BlockOffset = ftell($fd);
89  $BlockData = fread($fd, 8);
90  $offset = 8;
91  $BlockName = substr($BlockData, 0, 4);
92  $BlockSize = getid3_lib::LittleEndian2Int(substr($BlockData, 4, 4));
93 
94  if ($BlockName == 'OFRX') {
95  $BlockName = 'OFR ';
96  }
97  if (!isset($ThisFileInfo['ofr'][$BlockName])) {
98  $ThisFileInfo['ofr'][$BlockName] = array();
99  }
100  $thisfile_ofr_thisblock = &$ThisFileInfo['ofr'][$BlockName];
101 
102  switch ($BlockName) {
103  case 'OFR ':
104 
105  // shortcut
106  $thisfile_ofr_thisblock['offset'] = $BlockOffset;
107  $thisfile_ofr_thisblock['size'] = $BlockSize;
108 
109  $ThisFileInfo['audio']['encoder'] = 'OptimFROG 4.50 alpha';
110  switch ($BlockSize) {
111  case 12:
112  case 15:
113  // good
114  break;
115 
116  default:
117  $ThisFileInfo['warning'][] = '"'.$BlockName.'" contains more data than expected (expected 12 or 15 bytes, found '.$BlockSize.' bytes)';
118  break;
119  }
120  $BlockData .= fread($fd, $BlockSize);
121 
122  $thisfile_ofr_thisblock['total_samples'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 6));
123  $offset += 6;
124  $thisfile_ofr_thisblock['raw']['sample_type'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 1));
125  $thisfile_ofr_thisblock['sample_type'] = $this->OptimFROGsampleTypeLookup($thisfile_ofr_thisblock['raw']['sample_type']);
126  $offset += 1;
127  $thisfile_ofr_thisblock['channel_config'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 1));
128  $thisfile_ofr_thisblock['channels'] = $thisfile_ofr_thisblock['channel_config'];
129  $offset += 1;
130  $thisfile_ofr_thisblock['sample_rate'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 4));
131  $offset += 4;
132 
133  if ($BlockSize > 12) {
134 
135  // OFR 4.504b or higher
136  $thisfile_ofr_thisblock['channels'] = $this->OptimFROGchannelConfigNumChannelsLookup($thisfile_ofr_thisblock['channel_config']);
137  $thisfile_ofr_thisblock['raw']['encoder_id'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 2));
138  $thisfile_ofr_thisblock['encoder'] = $this->OptimFROGencoderNameLookup($thisfile_ofr_thisblock['raw']['encoder_id']);
139  $offset += 2;
140  $thisfile_ofr_thisblock['raw']['compression'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 1));
141  $thisfile_ofr_thisblock['compression'] = $this->OptimFROGcompressionLookup($thisfile_ofr_thisblock['raw']['compression']);
142  $thisfile_ofr_thisblock['speedup'] = $this->OptimFROGspeedupLookup($thisfile_ofr_thisblock['raw']['compression']);
143  $offset += 1;
144 
145  $ThisFileInfo['audio']['encoder'] = 'OptimFROG '.$thisfile_ofr_thisblock['encoder'];
146  $ThisFileInfo['audio']['encoder_options'] = '--mode '.$thisfile_ofr_thisblock['compression'];
147 
148  if ((($thisfile_ofr_thisblock['raw']['encoder_id'] & 0xF0) >> 4) == 7) { // v4.507
149  if (strtolower(getid3_lib::fileextension($ThisFileInfo['filename'])) == 'ofs') {
150  // OptimFROG DualStream format is lossy, but as of v4.507 there is no way to tell the difference
151  // between lossless and lossy other than the file extension.
152  $ThisFileInfo['audio']['dataformat'] = 'ofs';
153  $ThisFileInfo['audio']['lossless'] = true;
154  }
155  }
156 
157  }
158 
159  $ThisFileInfo['audio']['channels'] = $thisfile_ofr_thisblock['channels'];
160  $ThisFileInfo['audio']['sample_rate'] = $thisfile_ofr_thisblock['sample_rate'];
161  $ThisFileInfo['audio']['bits_per_sample'] = $this->OptimFROGbitsPerSampleTypeLookup($thisfile_ofr_thisblock['raw']['sample_type']);
162  break;
163 
164 
165  case 'COMP':
166  // unlike other block types, there CAN be multiple COMP blocks
167 
168  $COMPdata['offset'] = $BlockOffset;
169  $COMPdata['size'] = $BlockSize;
170 
171  if ($ThisFileInfo['avdataoffset'] == 0) {
172  $ThisFileInfo['avdataoffset'] = $BlockOffset;
173  }
174 
175  // Only interested in first 14 bytes (only first 12 needed for v4.50 alpha), not actual audio data
176  $BlockData .= fread($fd, 14);
177  fseek($fd, $BlockSize - 14, SEEK_CUR);
178 
179  $COMPdata['crc_32'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 4));
180  $offset += 4;
181  $COMPdata['sample_count'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 4));
182  $offset += 4;
183  $COMPdata['raw']['sample_type'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 1));
184  $COMPdata['sample_type'] = $this->OptimFROGsampleTypeLookup($COMPdata['raw']['sample_type']);
185  $offset += 1;
186  $COMPdata['raw']['channel_configuration'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 1));
187  $COMPdata['channel_configuration'] = $this->OptimFROGchannelConfigurationLookup($COMPdata['raw']['channel_configuration']);
188  $offset += 1;
189  $COMPdata['raw']['algorithm_id'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 2));
190  //$COMPdata['algorithm'] = OptimFROGalgorithmNameLookup($COMPdata['raw']['algorithm_id']);
191  $offset += 2;
192 
193  if ($ThisFileInfo['ofr']['OFR ']['size'] > 12) {
194 
195  // OFR 4.504b or higher
196  $COMPdata['raw']['encoder_id'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 2));
197  $COMPdata['encoder'] = $this->OptimFROGencoderNameLookup($COMPdata['raw']['encoder_id']);
198  $offset += 2;
199 
200  }
201 
202  if ($COMPdata['crc_32'] == 0x454E4F4E) {
203  // ASCII value of 'NONE' - placeholder value in v4.50a
204  $COMPdata['crc_32'] = false;
205  }
206 
207  $thisfile_ofr_thisblock[] = $COMPdata;
208  break;
209 
210  case 'HEAD':
211  $thisfile_ofr_thisblock['offset'] = $BlockOffset;
212  $thisfile_ofr_thisblock['size'] = $BlockSize;
213 
214  $RIFFdata .= fread($fd, $BlockSize);
215  break;
216 
217  case 'TAIL':
218  $thisfile_ofr_thisblock['offset'] = $BlockOffset;
219  $thisfile_ofr_thisblock['size'] = $BlockSize;
220 
221  if ($BlockSize > 0) {
222  $RIFFdata .= fread($fd, $BlockSize);
223  }
224  break;
225 
226  case 'RECV':
227  // block contains no useful meta data - simply note and skip
228 
229  $thisfile_ofr_thisblock['offset'] = $BlockOffset;
230  $thisfile_ofr_thisblock['size'] = $BlockSize;
231 
232  fseek($fd, $BlockSize, SEEK_CUR);
233  break;
234 
235 
236  case 'APET':
237  // APEtag v2
238 
239  $thisfile_ofr_thisblock['offset'] = $BlockOffset;
240  $thisfile_ofr_thisblock['size'] = $BlockSize;
241  $ThisFileInfo['warning'][] = 'APEtag processing inside OptimFROG not supported in this version ('.GETID3_VERSION.') of getID3()';
242 
243  fseek($fd, $BlockSize, SEEK_CUR);
244  break;
245 
246 
247  case 'MD5 ':
248  // APEtag v2
249 
250  $thisfile_ofr_thisblock['offset'] = $BlockOffset;
251  $thisfile_ofr_thisblock['size'] = $BlockSize;
252 
253  if ($BlockSize == 16) {
254 
255  $thisfile_ofr_thisblock['md5_binary'] = fread($fd, $BlockSize);
256  $thisfile_ofr_thisblock['md5_string'] = getid3_lib::PrintHexBytes($thisfile_ofr_thisblock['md5_binary'], true, false, false);
257  $ThisFileInfo['md5_data_source'] = $thisfile_ofr_thisblock['md5_string'];
258 
259  } else {
260 
261  $ThisFileInfo['warning'][] = 'Expecting block size of 16 in "MD5 " chunk, found '.$BlockSize.' instead';
262  fseek($fd, $BlockSize, SEEK_CUR);
263 
264  }
265  break;
266 
267 
268  default:
269  $thisfile_ofr_thisblock['offset'] = $BlockOffset;
270  $thisfile_ofr_thisblock['size'] = $BlockSize;
271 
272  $ThisFileInfo['warning'][] = 'Unhandled OptimFROG block type "'.$BlockName.'" at offset '.$thisfile_ofr_thisblock['offset'];
273  fseek($fd, $BlockSize, SEEK_CUR);
274  break;
275  }
276  }
277  if (isset($ThisFileInfo['ofr']['TAIL']['offset'])) {
278  $ThisFileInfo['avdataend'] = $ThisFileInfo['ofr']['TAIL']['offset'];
279  }
280 
281  $ThisFileInfo['playtime_seconds'] = (float) $ThisFileInfo['ofr']['OFR ']['total_samples'] / ($ThisFileInfo['audio']['channels'] * $ThisFileInfo['audio']['sample_rate']);
282  $ThisFileInfo['audio']['bitrate'] = (($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) * 8) / $ThisFileInfo['playtime_seconds'];
283 
284  // move the data chunk after all other chunks (if any)
285  // so that the RIFF parser doesn't see EOF when trying
286  // to skip over the data chunk
287  $RIFFdata = substr($RIFFdata, 0, 36).substr($RIFFdata, 44).substr($RIFFdata, 36, 8);
288  getid3_riff::ParseRIFFdata($RIFFdata, $ThisFileInfo);
289 
290  return true;
291  }
getid3_optimfrog\OptimFROGcompressionLookup
OptimFROGcompressionLookup($CompressionID)
Definition: module.audio.optimfrog.php:367
getid3_optimfrog\OptimFROGchannelConfigurationLookup
OptimFROGchannelConfigurationLookup($ChannelConfiguration)
Definition: module.audio.optimfrog.php:328
getid3_lib\LittleEndian2Int
LittleEndian2Int($byteword, $signed=false)
Definition: getid3.lib.php:266
getid3_lib\fileextension
fileextension($filename, $numextensions=1)
Definition: getid3.lib.php:392
getid3_optimfrog\OptimFROGbitsPerSampleTypeLookup
OptimFROGbitsPerSampleTypeLookup($SampleType)
Definition: module.audio.optimfrog.php:311
getid3_optimfrog\OptimFROGchannelConfigNumChannelsLookup
OptimFROGchannelConfigNumChannelsLookup($ChannelConfiguration)
Definition: module.audio.optimfrog.php:336
getid3_handler\fread
fread($bytes)
Definition: getid3.php:1685
getid3_optimfrog\OptimFROGencoderNameLookup
OptimFROGencoderNameLookup($EncoderID)
Definition: module.audio.optimfrog.php:352
getid3_handler\feof
feof()
Definition: getid3.php:1727
getid3_optimfrog\OptimFROGspeedupLookup
OptimFROGspeedupLookup($CompressionID)
Definition: module.audio.optimfrog.php:389
getid3_riff\ParseRIFFdata
ParseRIFFdata(&$RIFFdata, &$ThisFileInfo)
Definition: module.audio-video.riff.php:1310
getid3_optimfrog\OptimFROGsampleTypeLookup
OptimFROGsampleTypeLookup($SampleType)
Definition: module.audio.optimfrog.php:294
getid3_handler\fseek
fseek($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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◆ ParseOptimFROGheader45() [2/2]

getid3_optimfrog::ParseOptimFROGheader45 ( )

Definition at line 95 of file module.audio.optimfrog.php.

References $info, getid3_handler\feof(), getid3_lib\fileextension(), getid3_handler\fread(), getid3_handler\fseek(), getid3_handler\ftell(), getid3_lib\LittleEndian2Int(), OptimFROGbitsPerSampleTypeLookup(), OptimFROGchannelConfigNumChannelsLookup(), OptimFROGchannelConfigurationLookup(), OptimFROGcompressionLookup(), OptimFROGencoderNameLookup(), OptimFROGsampleTypeLookup(), OptimFROGspeedupLookup(), and getid3_lib\PrintHexBytes().

Referenced by Analyze(), and getid3_optimfrog().

95  {
96  // for fileformat of v4.50a and higher
97 
98  $info = &$this->getid3->info;
99  $RIFFdata = '';
100  $this->fseek($info['avdataoffset']);
101  while (!feof($this->getid3->fp) && ($this->ftell() < $info['avdataend'])) {
102  $BlockOffset = $this->ftell();
103  $BlockData = $this->fread(8);
104  $offset = 8;
105  $BlockName = substr($BlockData, 0, 4);
106  $BlockSize = getid3_lib::LittleEndian2Int(substr($BlockData, 4, 4));
107 
108  if ($BlockName == 'OFRX') {
109  $BlockName = 'OFR ';
110  }
111  if (!isset($info['ofr'][$BlockName])) {
112  $info['ofr'][$BlockName] = array();
113  }
114  $thisfile_ofr_thisblock = &$info['ofr'][$BlockName];
115 
116  switch ($BlockName) {
117  case 'OFR ':
118 
119  // shortcut
120  $thisfile_ofr_thisblock['offset'] = $BlockOffset;
121  $thisfile_ofr_thisblock['size'] = $BlockSize;
122 
123  $info['audio']['encoder'] = 'OptimFROG 4.50 alpha';
124  switch ($BlockSize) {
125  case 12:
126  case 15:
127  // good
128  break;
129 
130  default:
131  $info['warning'][] = '"'.$BlockName.'" contains more data than expected (expected 12 or 15 bytes, found '.$BlockSize.' bytes)';
132  break;
133  }
134  $BlockData .= $this->fread($BlockSize);
135 
136  $thisfile_ofr_thisblock['total_samples'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 6));
137  $offset += 6;
138  $thisfile_ofr_thisblock['raw']['sample_type'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 1));
139  $thisfile_ofr_thisblock['sample_type'] = $this->OptimFROGsampleTypeLookup($thisfile_ofr_thisblock['raw']['sample_type']);
140  $offset += 1;
141  $thisfile_ofr_thisblock['channel_config'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 1));
142  $thisfile_ofr_thisblock['channels'] = $thisfile_ofr_thisblock['channel_config'];
143  $offset += 1;
144  $thisfile_ofr_thisblock['sample_rate'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 4));
145  $offset += 4;
146 
147  if ($BlockSize > 12) {
148 
149  // OFR 4.504b or higher
150  $thisfile_ofr_thisblock['channels'] = $this->OptimFROGchannelConfigNumChannelsLookup($thisfile_ofr_thisblock['channel_config']);
151  $thisfile_ofr_thisblock['raw']['encoder_id'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 2));
152  $thisfile_ofr_thisblock['encoder'] = $this->OptimFROGencoderNameLookup($thisfile_ofr_thisblock['raw']['encoder_id']);
153  $offset += 2;
154  $thisfile_ofr_thisblock['raw']['compression'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 1));
155  $thisfile_ofr_thisblock['compression'] = $this->OptimFROGcompressionLookup($thisfile_ofr_thisblock['raw']['compression']);
156  $thisfile_ofr_thisblock['speedup'] = $this->OptimFROGspeedupLookup($thisfile_ofr_thisblock['raw']['compression']);
157  $offset += 1;
158 
159  $info['audio']['encoder'] = 'OptimFROG '.$thisfile_ofr_thisblock['encoder'];
160  $info['audio']['encoder_options'] = '--mode '.$thisfile_ofr_thisblock['compression'];
161 
162  if ((($thisfile_ofr_thisblock['raw']['encoder_id'] & 0xF0) >> 4) == 7) { // v4.507
163  if (strtolower(getid3_lib::fileextension($info['filename'])) == 'ofs') {
164  // OptimFROG DualStream format is lossy, but as of v4.507 there is no way to tell the difference
165  // between lossless and lossy other than the file extension.
166  $info['audio']['dataformat'] = 'ofs';
167  $info['audio']['lossless'] = true;
168  }
169  }
170 
171  }
172 
173  $info['audio']['channels'] = $thisfile_ofr_thisblock['channels'];
174  $info['audio']['sample_rate'] = $thisfile_ofr_thisblock['sample_rate'];
175  $info['audio']['bits_per_sample'] = $this->OptimFROGbitsPerSampleTypeLookup($thisfile_ofr_thisblock['raw']['sample_type']);
176  break;
177 
178 
179  case 'COMP':
180  // unlike other block types, there CAN be multiple COMP blocks
181 
182  $COMPdata['offset'] = $BlockOffset;
183  $COMPdata['size'] = $BlockSize;
184 
185  if ($info['avdataoffset'] == 0) {
186  $info['avdataoffset'] = $BlockOffset;
187  }
188 
189  // Only interested in first 14 bytes (only first 12 needed for v4.50 alpha), not actual audio data
190  $BlockData .= $this->fread(14);
191  $this->fseek($BlockSize - 14, SEEK_CUR);
192 
193  $COMPdata['crc_32'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 4));
194  $offset += 4;
195  $COMPdata['sample_count'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 4));
196  $offset += 4;
197  $COMPdata['raw']['sample_type'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 1));
198  $COMPdata['sample_type'] = $this->OptimFROGsampleTypeLookup($COMPdata['raw']['sample_type']);
199  $offset += 1;
200  $COMPdata['raw']['channel_configuration'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 1));
201  $COMPdata['channel_configuration'] = $this->OptimFROGchannelConfigurationLookup($COMPdata['raw']['channel_configuration']);
202  $offset += 1;
203  $COMPdata['raw']['algorithm_id'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 2));
204  //$COMPdata['algorithm'] = OptimFROGalgorithmNameLookup($COMPdata['raw']['algorithm_id']);
205  $offset += 2;
206 
207  if ($info['ofr']['OFR ']['size'] > 12) {
208 
209  // OFR 4.504b or higher
210  $COMPdata['raw']['encoder_id'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 2));
211  $COMPdata['encoder'] = $this->OptimFROGencoderNameLookup($COMPdata['raw']['encoder_id']);
212  $offset += 2;
213 
214  }
215 
216  if ($COMPdata['crc_32'] == 0x454E4F4E) {
217  // ASCII value of 'NONE' - placeholder value in v4.50a
218  $COMPdata['crc_32'] = false;
219  }
220 
221  $thisfile_ofr_thisblock[] = $COMPdata;
222  break;
223 
224  case 'HEAD':
225  $thisfile_ofr_thisblock['offset'] = $BlockOffset;
226  $thisfile_ofr_thisblock['size'] = $BlockSize;
227 
228  $RIFFdata .= $this->fread($BlockSize);
229  break;
230 
231  case 'TAIL':
232  $thisfile_ofr_thisblock['offset'] = $BlockOffset;
233  $thisfile_ofr_thisblock['size'] = $BlockSize;
234 
235  if ($BlockSize > 0) {
236  $RIFFdata .= $this->fread($BlockSize);
237  }
238  break;
239 
240  case 'RECV':
241  // block contains no useful meta data - simply note and skip
242 
243  $thisfile_ofr_thisblock['offset'] = $BlockOffset;
244  $thisfile_ofr_thisblock['size'] = $BlockSize;
245 
246  $this->fseek($BlockSize, SEEK_CUR);
247  break;
248 
249 
250  case 'APET':
251  // APEtag v2
252 
253  $thisfile_ofr_thisblock['offset'] = $BlockOffset;
254  $thisfile_ofr_thisblock['size'] = $BlockSize;
255  $info['warning'][] = 'APEtag processing inside OptimFROG not supported in this version ('.$this->getid3->version().') of getID3()';
256 
257  $this->fseek($BlockSize, SEEK_CUR);
258  break;
259 
260 
261  case 'MD5 ':
262  // APEtag v2
263 
264  $thisfile_ofr_thisblock['offset'] = $BlockOffset;
265  $thisfile_ofr_thisblock['size'] = $BlockSize;
266 
267  if ($BlockSize == 16) {
268 
269  $thisfile_ofr_thisblock['md5_binary'] = $this->fread($BlockSize);
270  $thisfile_ofr_thisblock['md5_string'] = getid3_lib::PrintHexBytes($thisfile_ofr_thisblock['md5_binary'], true, false, false);
271  $info['md5_data_source'] = $thisfile_ofr_thisblock['md5_string'];
272 
273  } else {
274 
275  $info['warning'][] = 'Expecting block size of 16 in "MD5 " chunk, found '.$BlockSize.' instead';
276  $this->fseek($BlockSize, SEEK_CUR);
277 
278  }
279  break;
280 
281 
282  default:
283  $thisfile_ofr_thisblock['offset'] = $BlockOffset;
284  $thisfile_ofr_thisblock['size'] = $BlockSize;
285 
286  $info['warning'][] = 'Unhandled OptimFROG block type "'.$BlockName.'" at offset '.$thisfile_ofr_thisblock['offset'];
287  $this->fseek($BlockSize, SEEK_CUR);
288  break;
289  }
290  }
291  if (isset($info['ofr']['TAIL']['offset'])) {
292  $info['avdataend'] = $info['ofr']['TAIL']['offset'];
293  }
294 
295  $info['playtime_seconds'] = (float) $info['ofr']['OFR ']['total_samples'] / ($info['audio']['channels'] * $info['audio']['sample_rate']);
296  $info['audio']['bitrate'] = (($info['avdataend'] - $info['avdataoffset']) * 8) / $info['playtime_seconds'];
297 
298  // move the data chunk after all other chunks (if any)
299  // so that the RIFF parser doesn't see EOF when trying
300  // to skip over the data chunk
301  $RIFFdata = substr($RIFFdata, 0, 36).substr($RIFFdata, 44).substr($RIFFdata, 36, 8);
302 
303  $getid3_temp = new getID3();
304  $getid3_temp->openfile($this->getid3->filename);
305  $getid3_temp->info['avdataoffset'] = $info['avdataoffset'];
306  $getid3_temp->info['avdataend'] = $info['avdataend'];
307  $getid3_riff = new getid3_riff($getid3_temp);
308  $getid3_riff->ParseRIFFdata($RIFFdata);
309  $info['riff'] = $getid3_temp->info['riff'];
310 
311  unset($getid3_riff, $getid3_temp, $RIFFdata);
312 
313  return true;
314  }
getid3_optimfrog\OptimFROGcompressionLookup
OptimFROGcompressionLookup($CompressionID)
Definition: module.audio.optimfrog.php:367
getid3_optimfrog\OptimFROGchannelConfigurationLookup
OptimFROGchannelConfigurationLookup($ChannelConfiguration)
Definition: module.audio.optimfrog.php:328
getid3_lib\LittleEndian2Int
LittleEndian2Int($byteword, $signed=false)
Definition: getid3.lib.php:266
getid3_lib\fileextension
fileextension($filename, $numextensions=1)
Definition: getid3.lib.php:392
$info
$info
Definition: example_052.php:80
getid3_optimfrog\OptimFROGbitsPerSampleTypeLookup
OptimFROGbitsPerSampleTypeLookup($SampleType)
Definition: module.audio.optimfrog.php:311
getid3_optimfrog\OptimFROGchannelConfigNumChannelsLookup
OptimFROGchannelConfigNumChannelsLookup($ChannelConfiguration)
Definition: module.audio.optimfrog.php:336
getid3_handler\fread
fread($bytes)
Definition: getid3.php:1685
getid3_optimfrog\OptimFROGencoderNameLookup
OptimFROGencoderNameLookup($EncoderID)
Definition: module.audio.optimfrog.php:352
getid3_handler\feof
feof()
Definition: getid3.php:1727
getid3_optimfrog\OptimFROGspeedupLookup
OptimFROGspeedupLookup($CompressionID)
Definition: module.audio.optimfrog.php:389
getid3_riff
Definition: module.audio-video.riff.php:21
getid3_optimfrog\OptimFROGsampleTypeLookup
OptimFROGsampleTypeLookup($SampleType)
Definition: module.audio.optimfrog.php:294
getid3_handler\fseek
fseek($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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The documentation for this class was generated from the following file: