MP3 Info

Processes an MP3 file to extract key meta information such as MPEG version, MPEG layer version, bitrate, sample rate and duration. Can optionally process ID3 tags.

Usage

A simple usage example:

import 'dart:io';

import 'package:mp3_info/mp3_info.dart';

main() {
  MP3Info mp3 = MP3Processor.fromFile(File("test_files/test_128kpbs_441khz_stereo_10s.mp3"));

  print('MP3: test_128kpbs_441khz_stereo_10s.mp3');

  switch(mp3.sampleRate) {
    case SampleRate.rate_32000:
      print('Sample rate: 32KHz');
      break;
    case SampleRate.rate_44100:
      print('Sample rate: 44.1KHz');
      break;
    case SampleRate.rate_48000:
      print('Sample rate: 48KHz');
      break;
  }

  print('Bit rate: ${mp3.bitrate}bps');
  print('Duration: ${mp3.duration}');
}

Task list

• x MP3 Key fields
  • x MPEG version
  • x MPEG layer version
  • x Sample rate
  • x Bitrate
  • x Duration
  • x CRC check
  • x Channel mode
  • Mode extension
  • x Copyright flag
  • x Origin (original/copy))
  • x Emphasis
• x CBR (Constant Bitrate) support
• VBR (Variable Bitrate) support
• ID3 v1 Tag support
• ID3 v2 Tag support
  • AENC Audio encryption
  • APIC Attached picture
  • x CHAP Chapters
  • x COMM Comments
  • COMR Commercial frame
  • ENCR Encryption method registration
  • EQUA Equalization
  • ETCO Event timing codes
  • GEOB General encapsulated object
  • GRID Group identification registration
  • IPLS Involved people list
  • LINK Linked information
  • MCDI Music CD identifier
  • MLLT MPEG location lookup table
  • OWNE Ownership frame
  • PRIV Private frame
  • PCNT Play counter
  • POPM Popularimeter
  • POSS Position synchronisation frame
  • RBUF Recommended buffer size
  • RVAD Relative volume adjustment
  • RVRB Reverb
  • SYLT Synchronized lyric/text
  • SYTC Synchronized tempo codes
  • x TALB Album/Movie/Show title
  • x TBPM BPM (beats per minute)
  • x TCOM Composer
  • x TCON Content type
  • x TCOP Copyright message
  • x TDAT Date
  • x TDLY Playlist delay
  • x TENC Encoded by
  • x TEXT Lyricist/Text writer
  • x TFLT File type
  • x TIME Time
  • x TIT1 Content group description
  • x TIT2 Title/songname/content description
  • x TIT3 Subtitle/Description refinement
  • x TKEY Initial key
  • x TLAN Language(s)
  • x TLEN Length
  • x TMED Media type
  • x TOAL Original album/movie/show title
  • x TOFN Original filename
  • x TOLY Original lyricist(s)/text writer(s)
  • x TOPE Original artist(s)/performer(s)
  • x TORY Original release year
  • x TOWN File owner/licensee
  • x TPE1 Lead performer(s)/Soloist(s)
  • x TPE2 Band/orchestra/accompaniment
  • x TPE3 Conductor/performer refinement
  • x TPE4 Interpreted, remixed, or otherwise modified by
  • x TPOS Part of a set
  • x TPUB Publisher
  • x TRCK Track number/Position in set
  • x TRDA Recording dates
  • x TRSN Internet radio station name
  • x TRSO Internet radio station owner
  • x TSIZ Size
  • x TSRC ISRC (international standard recording code)
  • x TSSE Software/Hardware and settings used for encoding
  • x TYER Year
  • x TXXX User defined text information frame
  • UFID Unique file identifier
  • USER Terms of use
  • USLT Unsychronized lyric/text transcription
  • WCOM WCOM Commercial information
  • WCOP Copyright/Legal information
  • WOAF Official audio file webpage
  • WOAR Official artist/performer webpage
  • WOAS Official audio source webpage
  • WORS Official internet radio station homepage
  • WPAY Payment
  • WPUB Publishers official webpage
  • WXXX User defined URL link frame