audio_decoder 0.5.0 copy "audio_decoder: ^0.5.0" to clipboard
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Published 9 hours ago
SDKFlutter
PlatformAndroidiOSLinuxmacOSwebWindows
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A lightweight Flutter plugin for converting, trimming, and analyzing audio files using native platform APIs. No FFmpeg required.

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0.5.0 #

  • Add optional sampleRate, channels, and bitDepth parameters to convertToWav and convertToWavBytes.
  • Control output sample rate (e.g., 44100, 22050), channel count (1 for mono, 2 for stereo), and bit depth (8, 16, 24, 32).
  • When omitted, defaults to the source sample rate/channels and 16-bit depth.
  • Supported on all platforms: Android, iOS, macOS, Windows, Linux, and Web.

0.4.0 #

  • Add web support using the Web Audio API.
  • Bytes-based methods (convertToWavBytes, getAudioInfoBytes, trimAudioBytes, getWaveformBytes) are fully supported on web.
  • File-based methods throw UnsupportedError on web — use the bytes API instead.
  • M4A encoding is not available on web (browser limitation).

0.3.0 #

  • Add Linux support using GStreamer.
  • All file-based and bytes-based methods are now available on Linux.
  • Requires GStreamer 1.0+ (pre-installed on most Linux distributions).

0.2.0 #

  • Add bytes-based API for in-memory audio processing — no file paths needed.
    • convertToWavBytes — convert audio bytes to WAV format.
    • convertToM4aBytes — convert audio bytes to M4A format.
    • getAudioInfoBytes — retrieve metadata from audio bytes.
    • trimAudioBytes — trim audio bytes to a time range.
    • getWaveformBytes — extract waveform data from audio bytes.
  • All bytes methods accept a formatHint parameter to indicate the input format.
  • Ideal for network responses, Flutter assets, and other in-memory audio sources.

0.1.0 #

  • Initial release of audio_decoder.
  • Convert audio files to WAV format (convertToWav) — supports MP3, M4A, AAC, OGG, OPUS, FLAC, WMA, AIFF, AMR, CAF, ALAC, and WebM.
  • Convert audio files to M4A/AAC format (convertToM4a).
  • Retrieve audio metadata (getAudioInfo) — duration, sample rate, channels, bit rate, and format.
  • Trim audio files to a specific time range (trimAudio).
  • Extract waveform amplitude data for visualizations (getWaveform).
  • Platform support: Android, iOS, macOS, and Windows.
  • Typed exception handling via AudioConversionException.

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A lightweight Flutter plugin for converting, trimming, and analyzing audio files using native platform APIs. No FFmpeg required.

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Documentation

API reference

License

MIT (license)

Dependencies

flutter, flutter_web_plugins, plugin_platform_interface, web

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