MP3 Info

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

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
    • Copyright flag
    • Origin (original/copy))
    • Emphasis
  • x CBR (Constant Bitrate) support
  • VBR (Variable Bitrate) support
  • ID3 Tag support
  • ID1 Tag support

Libraries

mp3_info