bestowl / flutter_lame Goto Github PK

var encoder = LameMp3Encoder(); //only this line causes the increase in consumption
    IOSink? sink;
      final String outputFilePath = '$defaultPath/$fileName.mp3';
      debugPrint(outputFilePath);

      final wav = await compute(Wav.readFile, inputFile.path);
      wav.toMono();

      final File f = File(outputFilePath);
      sink = f.openWrite();

      encoder = LameMp3Encoder(
          sampleRate: wav.samplesPerSecond,
          numChannels: wav.channels.length,
          bitRate: 30);

      final left = wav.channels[0];
      Float64List? right;
      if (wav.channels.length > 1) {
        right = wav.channels[1];
      }

      //Write file
      for (int i = 0; i < left.length; i += wav.samplesPerSecond) {
        final int endIndex = i + wav.samplesPerSecond;
        final mp3Frame = await encoder.encodeDouble(
          leftChannel:
              left.sublist(i, endIndex < left.length ? endIndex : left.length),
          rightChannel: right?.sublist(
              i, endIndex < right.length ? endIndex : right.length),
        );
        sink.add(mp3Frame);
      }
      sink.add(await encoder.flush());
      await inputFile.delete();
      debugPrint("Finished");
      readyAudioController.sink.add(true);
      recorder.closeRecorder();
      return true;