mp3_info 0.1.0

A package for extracting key meta information from an MP3 file including sample rate, bitrate and duration.

mp3_info parses an MP3 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

• ✅ MP3 Key fields
  • ✅ MPEG version
  • ✅ MPEG layer version
  • ✅ Sample rate
  • ✅ Bitrate
  • ✅ Duration
  • ✅ CRC check
  • ✅ Channel mode
  • ❌ Mode extension
  • ❌ Copyright flag
  • ❌ Origin (original/copy))
  • ❌ Emphasis
• ✅ CBR (Constant Bitrate) support
• ❌ VBR (Variable Bitrate) support
• ❌ ID3 Tag support
• ❌ ID1 Tag support