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<?php
/*
Copyright (c) 2001 - 2006 Ampache.org
All rights reserved.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/**
* vainfo
* This class takes the information pulled from getID3 and returns it in a
* Ampache friendly way.
*/
class vainfo {
/* Default Encoding */
var $encoding = 'UTF-8';
/* Loaded Variables */
var $filename = '';
var $type = '';
var $tags = array();
var $info = array();
/* Internal Information */
var $_raw = array();
var $_getID3 = '';
var $_iconv = false;
var $_file_pattern = '';
var $_dir_pattern = '';
/**
* Constructor
* This function just sets up the class, it doesn't
* actually pull the information
*/
function vainfo($file,$encoding='',$dir_pattern,$file_pattern) {
$this->filename = stripslashes($file);
if ($encoding) {
$this->encoding = $encoding;
}
else {
$this->encoding = conf('site_charset');
}
/* These are needed for the filename mojo */
$this->_file_pattern = $file_pattern;
$this->_dir_pattern = $dir_pattern;
// Initialize getID3 engine
$this->_getID3 = new getID3();
$this->_getID3->option_md5_data = false;
$this->_getID3->option_md5_data_source = false;
$this->_getID3->option_tags_html = false;
$this->_getID3->option_extra_info = false;
$this->_getID3->encoding = $this->encoding;
/* Check for ICONV */
if (function_exists('iconv')) {
$this->_iconv = true;
}
} // vainfo
/**
* get_info
* This function takes a filename and returns the $_info array
* all filled up with tagie goodness or if specified filename
* pattern goodness
*/
function get_info() {
/* Get the Raw file information */
$this->_raw = $this->_getID3->analyze($this->filename);
/* Figure out what type of file we are dealing with */
$this->type = $this->_get_type();
/* Get the general information about this file */
$info = $this->_get_info();
/* Gets the Tags */
$this->tags = $this->_get_tags();
$this->tags['info'] = $info;
unset($this->_raw);
} // get_info
/**
* _get_type
* This function takes the raw information and figures out
* what type of file we are dealing with for use by the tag
* function
*/
function _get_type() {
/* There are a few places that the file type can
* come from, in the end we trust the encoding
* type
*/
if ($type = $this->_raw['audio']['streams']['0']['dataformat']) {
$this->_clean_type($type);
return $type;
}
if ($type = $this->_raw['audio']['dataformat']) {
$this->_clean_type($type);
return $type;
}
if ($type = $this->_raw['fileformat']) {
$this->_clean_type($type);
return $type;
}
return false;
} // _get_type
/**
* _get_tags
* This function takes the raw information and the type and
* attempts to gather the tags and then normalize them into
* ['tag_name']['var'] = value
*/
function _get_tags() {
$results = array();
/* The tags can come in many different shapes and colors
* depending on the encoding time of day and phase of the
* moon
*/
foreach ($this->_raw['tags'] as $key=>$tag_array) {
switch ($key) {
case 'vorbiscomment':
$results[$key] = $this->_parse_vorbiscomment($tag_array);
break;
case 'id3v1':
$results[$key] = $this->_parse_id3v1($tag_array);
break;
case 'id3v2':
$results[$key] = $this->_parse_id3v2($tag_array);
break;
case 'ape':
$results[$key] = $this->_parse_ape($tag_array);
break;
default:
debug_event('vainfo','Error: Unable to determine tag type of ' . $key . ' for file ' . $this->filename,'5');
break;
} // end switch
} // end foreach
/* Gather Tag information from the filenames */
$results['file'] = $this->_parse_filename($this->filename);
return $results;
} // _get_tags
/**
* _get_info
* This function gathers and returns the general information
* about a song, vbr/cbr sample rate channels etc
*/
function _get_info() {
$array = array();
/* Try to pull the information directly from
* the audio array
*/
if ($this->_raw['audio']['bitrate_mode']) {
$array['bitrate_mode'] = $this->_raw['audio']['bitrate_mode'];
}
if ($this->_raw['audio']['bitrate']) {
$array['bitrate'] = $this->_raw['audio']['bitrate'];
}
if ($this->_raw['audio']['channels']) {
$array['channels'] = intval($this->_raw['audio']['channels']);
}
if ($this->_raw['audio']['sample_rate']) {
$array['sample_rate'] = intval($this->_raw['audio']['sample_rate']);
}
if ($this->_raw['filesize']) {
$array['filesize'] = intval($this->_raw['filesize']);
}
if ($this->_raw['encoding']) {
$array['encoding'] = $this->_raw['encoding'];
}
if ($this->_raw['mime_type']) {
$array['mime'] = $this->_raw['mime_type'];
}
if ($this->_raw['playtime_seconds']) {
$array['playing_time'] = $this->_raw['playtime_seconds'];
}
return $array;
} // _get_info
/**
* _clean_type
* This standardizes the type that we are given into a reconized
* type
*/
function _clean_type($type) {
switch ($type) {
case 'mp3':
case 'mpeg3':
return 'mp3';
break;
case 'flac':
return 'flac';
break;
case 'vorbis':
return 'ogg';
break;
default:
/* Log the fact that we couldn't figure it out */
debug_event('vainfo','Unable to determine file type from ' . $type . ' on file ' . $this->filename,'5');
return 'unknown';
break;
} // end switch on type
} // _clean_type
/**
* _parse_vorbiscomment
* This function takes a vorbiscomment from getid3() and then
* returns the elements translated using iconv if needed in a
* pretty little format
*/
function _parse_vorbiscomment($tags) {
/* Results array */
$array = array();
/* go through them all! */
foreach ($tags as $tag=>$data) {
/* We need to translate a few of these tags */
switch ($tag) {
case 'tracknumber':
$array['track'] = $this->_clean_tag($data['0']);
break;
case 'date':
$array['year'] = $this->_clean_tag($data['0']);
break;
} // end switch
$array[$tag] = $this->_clean_tag($data['0']);
} // end foreach
return $array;
} // _parse_vorbiscomment
/**
* _parse_id3v1
* This function takes a id3v1 tag set from getid3() and then
* returns the elements translated using iconv if needed in a
* pretty little format
*/
function _parse_id3v1($tags) {
$array = array();
/* Go through all the tags */
foreach ($tags as $tag=>$data) {
/* This is our baseline for naming
* so no translation needed
*/
$array[$tag] = $this->_clean_tag($data['0']);
} // end foreach
return $array;
} // _parse_id3v1
/**
* _parse_id3v2
* This function takes a id3v2 tag set from getid3() and then
* returns the lelements translated using iconv if needed in a
* pretty little format
*/
function _parse_id3v2($tags) {
$array = array();
/* Go through the tags */
foreach ($tags as $tag=>$data) {
/* This is our baseline for naming so
* no translation is needed
*/
$array[$tag] = $this->_clean_tag($data['0']);
} // end foreach
return $array;
} // _parse_id3v2
/**
* _parse_ape
* This function takes ape tags set by getid3() and then
* returns the elements translated using iconv if needed in a
* pretty little format
*/
function _parse_ape($tags) {
} // _parse_ape
/**
* _parse_quicktime
* this function takes the quicktime tags set by getid3() and then
* returns the elements translated using iconv if needed in a
* pretty little format
*/
function _parse_quicktime($tags) {
} // _parse_quicktime
/**
* _parse_filename
* This function uses the passed file and dir patterns
* To pull out extra tag information and populate it into
* it's own array
*/
function _parse_filename($filename) {
/* Currently Broken */
return array();
$pattern = $this->_dir_pattern . $this->_file_pattern;
preg_match_all("/\%\w/",$pattern,$elements);
$preg_pattern = preg_replace("/\%\w/","(.+)",$pattern);
$preg_pattern .= "\..+$";
preg_match($preg_pattern,$filename,$matches);
} // _parse_filename
/**
* _clean_tag
* This function cleans up the tag that it's passed using Iconv
* if we've got it. It also takes an optional encoding param
* for the cases where we know what the tags source encoding
* is, and or if it's different then the encoding recorded
* in the file
*/
function _clean_tag($tag,$encoding='') {
if ($this->_iconv AND $this->encoding != $encoding) {
$tag = iconv('UTF-8','ISO-8859-1',$tag);
}
return $tag;
} // _clean_tag
} // end class vainfo
?>
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