Mp3Info
The fastest PHP library to get mp3 tags&meta.
This class extracts information from mpeg/mp3 audio:
- Audio information:
- Duration
- Bit Rate
- Sample Rate
- Channels mode
- Codec and Layer version
- Frames count
- Audio tags:
tag | id3v1 | id3v2 |
---|---|---|
song | song | TIT2 |
artist | artist | TPE1 |
album | album | TALB |
year | year | TYER |
comment | comment | COMM |
track | track | TRCK |
genre | genre | TCON |
Content
- Usage
- Performance
- Console scanner
- API
- Audio information
- Class methods
- Technical information
Usage
After creating an instance of Mp3Info
with passing filename as the first argument to the constructor, you can retrieve data from object properties (listed below).
use wapmorgan\Mp3Info\Mp3Info;
// To get basic audio information
$audio = new Mp3Info('./audio.mp3');
// If you need parse tags, you should set 2nd argument this way:
$audio = new Mp3Info('./audio.mp3', true);
And after that access object properties to get audio information:
echo 'Audio duration: '.floor($audio->duration / 60).' min '.floor($audio->duration % 60).' sec'.PHP_EOL;
echo 'Audio bitrate: '.($audio->bitRate / 1000).' kb/s'.PHP_EOL;
// and so on ...
To access id3v1 tags use $tags1
property.
To access id3v2 tags use $tags2
property.
Also, you can use combined list of tags $tags
, where id3v2 and id3v1 tags united with id3v1 keys.
// simple id3v1 tags
echo 'Song '.$audio->tags1['song'].' from '.$audio->tags1['artist'].PHP_EOL;
// specific id3v2 tags
echo 'Song '.$audio->tags2['TIT2'].' from '.$audio->tags2['TPE1'].PHP_EOL;
// combined tags (simplies way to get as more information as possible)
echo 'Song '.$audio->tags['song'].' from '.$audio->tags['artist'].PHP_EOL;
Performance
- Typically it parses one mp3-file with size around 6-7 mb in less than 0.001 sec.
- List of 112 files with constant & variable bitRate with total duration 5:22:28 are parsed in 1.76 sec. getId3 library against exactly the same mp3 list works for 8x-10x slower - 9.9 sec.
- If you want, there's a very easy way to compare. Just install
nass600/get-id3
package and run console scanner against any folder with audios. It will print time that Mp3Info spent and that getId3.
Console scanner
To test Mp3Info you can use built-in script that scans dirs and analyzes all mp3-files inside them. To launch script against current folder:
php bin/scan ./
API
Audio information
Property | Description | Values |
---|---|---|
$codecVersion |
MPEG codec version | 1 or 2 |
$layerVersion |
Audio layer version | 1 or 2 or 3 |
$audioSize |
Audio size in bytes. Note that this value is NOT equals file size. | int |
$duration |
Audio duration in seconds.microseconds | like 3603.0171428571 (means 1 hour and 3 sec) |
$bitRate |
Audio bit rate in bps | like 128000 (means 128kb/s) |
$sampleRate |
Audio sample rate in Hz | like 44100 (means 44.1KHz) |
$isVbr |
Contains true if audio has variable bit rate | boolean |
$channel |
Channel mode | 'stereo' or 'dual_mono' or 'joint_stereo' or 'mono' |
$tags1 |
Audio tags ver. 1 (aka id3v1). | ["song" => "Song name", "year" => 2009] |
$tags2 |
Audio tags ver. 2 (aka id3v2), only text ones. | ["TIT2" => "Long song name", ...] |
$tags |
Combined audio tags (from id3v1 & id3v2). Keys as in tags1. | ["song" => "Long song name", "year" => 2009, ...] |
$_parsingTime |
Contains time spent to read&extract audio information in sec.msec |
Class methods
-
public function __construct($filename, $parseTags = false)
Creates new instance of object and initiate parsing. If second argument is true, audio tags also will be parsed. -
static public function isValidAudio($filename)
Checks if file$filename
looks like an mp3-file. Returns true if file similar to mp3, otherwise false.
Technical information
Supporting features:
- id3v1
- id3v2.3.0, id3v2.4.0
- CBR, Variable Bit Rate (VBR)
Used sources: