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Diffstat (limited to 'modules/getid3/module.audio.monkey.php')
-rw-r--r--modules/getid3/module.audio.monkey.php86
1 files changed, 43 insertions, 43 deletions
diff --git a/modules/getid3/module.audio.monkey.php b/modules/getid3/module.audio.monkey.php
index cb691fca..4ece9f59 100644
--- a/modules/getid3/module.audio.monkey.php
+++ b/modules/getid3/module.audio.monkey.php
@@ -22,8 +22,8 @@
//
// $Id: module.audio.monkey.php,v 1.2 2006/11/02 10:48:01 ah Exp $
-
-
+
+
class getid3_monkey extends getid3_handler
{
@@ -33,7 +33,7 @@ class getid3_monkey extends getid3_handler
// based loosely on code from TMonkey by Jurgen Faul <jfaulØgmx*de>
// http://jfaul.de/atl or http://j-faul.virtualave.net/atl/atl.html
-
+
$getid3->info['fileformat'] = 'mac';
$getid3->info['audio']['dataformat'] = 'mac';
$getid3->info['audio']['bitrate_mode'] = 'vbr';
@@ -51,10 +51,10 @@ class getid3_monkey extends getid3_handler
// Read MAC version
$info_monkeys_audio_raw['nVersion'] = getid3_lib::LittleEndian2Int(substr($mac_header_data, 4, 2)); // appears to be uint32 in 3.98+
-
+
// Parse MAC Header < v3980
if ($info_monkeys_audio_raw['nVersion'] < 3980) {
-
+
getid3_lib::ReadSequence("LittleEndian2Int", $info_monkeys_audio_raw, $mac_header_data, 6,
array (
'nCompressionLevel' => 2,
@@ -65,30 +65,30 @@ class getid3_monkey extends getid3_handler
'nWAVTerminatingBytes' => 4,
'nTotalFrames' => 4,
'nFinalFrameSamples' => 4,
- 'nPeakLevel' => 4,
+ 'nPeakLevel' => 4,
'IGNORE-1' => 2,
'nSeekElements' => 2
)
);
- }
-
+ }
+
// Parse MAC Header >= v3980
else {
- getid3_lib::ReadSequence("LittleEndian2Int", $info_monkeys_audio_raw, $mac_header_data, 8,
+ getid3_lib::ReadSequence("LittleEndian2Int", $info_monkeys_audio_raw, $mac_header_data, 8,
array (
// APE_DESCRIPTOR
'nDescriptorBytes' => 4,
- 'nHeaderBytes' => 4,
- 'nSeekTableBytes' => 4,
- 'nHeaderDataBytes' => 4,
- 'nAPEFrameDataBytes' => 4,
- 'nAPEFrameDataBytesHigh'=> 4,
- 'nTerminatingDataBytes' => 4,
-
+ 'nHeaderBytes' => 4,
+ 'nSeekTableBytes' => 4,
+ 'nHeaderDataBytes' => 4,
+ 'nAPEFrameDataBytes' => 4,
+ 'nAPEFrameDataBytesHigh'=> 4,
+ 'nTerminatingDataBytes' => 4,
+
// MD5 - string
- 'cFileMD5' => -16,
-
+ 'cFileMD5' => -16,
+
// APE_HEADER
'nCompressionLevel' => 2,
'nFormatFlags' => 2,
@@ -101,7 +101,7 @@ class getid3_monkey extends getid3_handler
)
);
}
-
+
// Process data
$info_monkeys_audio['flags']['8-bit'] = (bool)($info_monkeys_audio_raw['nFormatFlags'] & 0x0001);
$info_monkeys_audio['flags']['crc-32'] = (bool)($info_monkeys_audio_raw['nFormatFlags'] & 0x0002);
@@ -109,39 +109,39 @@ class getid3_monkey extends getid3_handler
$info_monkeys_audio['flags']['24-bit'] = (bool)($info_monkeys_audio_raw['nFormatFlags'] & 0x0008);
$info_monkeys_audio['flags']['seek_elements'] = (bool)($info_monkeys_audio_raw['nFormatFlags'] & 0x0010);
$info_monkeys_audio['flags']['no_wav_header'] = (bool)($info_monkeys_audio_raw['nFormatFlags'] & 0x0020);
-
+
$info_monkeys_audio['version'] = $info_monkeys_audio_raw['nVersion'] / 1000;
-
+
$info_monkeys_audio['compression'] = getid3_monkey::MonkeyCompressionLevelNameLookup($info_monkeys_audio_raw['nCompressionLevel']);
-
+
$info_monkeys_audio['bits_per_sample'] = ($info_monkeys_audio['flags']['24-bit'] ? 24 : ($info_monkeys_audio['flags']['8-bit'] ? 8 : 16));
-
+
$info_monkeys_audio['channels'] = $info_monkeys_audio_raw['nChannels'];
-
+
$getid3->info['audio']['channels'] = $info_monkeys_audio['channels'];
-
+
$info_monkeys_audio['sample_rate'] = $info_monkeys_audio_raw['nSampleRate'];
-
+
$getid3->info['audio']['sample_rate'] = $info_monkeys_audio['sample_rate'];
-
+
if ($info_monkeys_audio['flags']['peak_level']) {
$info_monkeys_audio['peak_level'] = $info_monkeys_audio_raw['nPeakLevel'];
$info_monkeys_audio['peak_ratio'] = $info_monkeys_audio['peak_level'] / pow(2, $info_monkeys_audio['bits_per_sample'] - 1);
}
-
+
// MAC >= v3980
if ($info_monkeys_audio_raw['nVersion'] >= 3980) {
$info_monkeys_audio['samples'] = (($info_monkeys_audio_raw['nTotalFrames'] - 1) * $info_monkeys_audio_raw['nBlocksPerFrame']) + $info_monkeys_audio_raw['nFinalFrameBlocks'];
- }
-
+ }
+
// MAC < v3980
else {
$info_monkeys_audio['samples_per_frame'] = getid3_monkey::MonkeySamplesPerFrame($info_monkeys_audio_raw['nVersion'], $info_monkeys_audio_raw['nCompressionLevel']);
$info_monkeys_audio['samples'] = (($info_monkeys_audio_raw['nTotalFrames'] - 1) * $info_monkeys_audio['samples_per_frame']) + $info_monkeys_audio_raw['nFinalFrameSamples'];
}
-
+
$info_monkeys_audio['playtime'] = $info_monkeys_audio['samples'] / $info_monkeys_audio['sample_rate'];
-
+
$getid3->info['playtime_seconds'] = $info_monkeys_audio['playtime'];
$info_monkeys_audio['compressed_size'] = $getid3->info['avdataend'] - $getid3->info['avdataoffset'];
@@ -150,17 +150,17 @@ class getid3_monkey extends getid3_handler
$info_monkeys_audio['bitrate'] = (($info_monkeys_audio['samples'] * $info_monkeys_audio['channels'] * $info_monkeys_audio['bits_per_sample']) / $info_monkeys_audio['playtime']) * $info_monkeys_audio['compression_ratio'];
$getid3->info['audio']['bitrate'] = $info_monkeys_audio['bitrate'];
-
+
$getid3->info['audio']['bits_per_sample'] = $info_monkeys_audio['bits_per_sample'];
$getid3->info['audio']['encoder'] = 'MAC v'.number_format($info_monkeys_audio['version'], 2);
$getid3->info['audio']['encoder_options'] = ucfirst($info_monkeys_audio['compression']).' compression';
-
+
// MAC >= v3980 - get avdataoffsets from MAC header
if ($info_monkeys_audio_raw['nVersion'] >= 3980) {
$getid3->info['avdataoffset'] += $info_monkeys_audio_raw['nDescriptorBytes'] + $info_monkeys_audio_raw['nHeaderBytes'] + $info_monkeys_audio_raw['nSeekTableBytes'] + $info_monkeys_audio_raw['nHeaderDataBytes'];
$getid3->info['avdataend'] -= $info_monkeys_audio_raw['nTerminatingDataBytes'];
- }
-
+ }
+
// MAC < v3980 Add size of MAC header to avdataoffset
else {
$getid3->info['avdataoffset'] += 8;
@@ -179,15 +179,15 @@ class getid3_monkey extends getid3_handler
}
}
}
-
+
return true;
}
-
-
+
+
public static function MonkeyCompressionLevelNameLookup($compression_level) {
-
+
static $lookup = array (
0 => 'unknown',
1000 => 'fast',
@@ -199,13 +199,13 @@ class getid3_monkey extends getid3_handler
return (isset($lookup[$compression_level]) ? $lookup[$compression_level] : 'invalid');
}
-
-
+
+
public static function MonkeySamplesPerFrame($version_id, $compression_level) {
if ($version_id >= 3950) {
return 73728 * 4;
- }
+ }
if (($version_id >= 3900) || (($version_id >= 3800) && ($compression_level == 4000))) {
return 73728;
}
generated by cgit (git 2.34.1) at 2025-08-14 01:37:18 +0000