AudioPlayer.cpp

#include "AudioPlayer.h"

AudioPlayer::AudioPlayer(QObject *parent)
{

    QAudioFormat format;

    format.setSampleRate(44100);
    format.setChannelCount(2);
    format.setCodec("audio/pcm");
    format.setSampleSize(32);
    format.setByteOrder(QAudioFormat::LittleEndian);
    format.setSampleType(QAudioFormat::SignedInt);

    decoder = new QAudioDecoder(this);
    decoder->setAudioFormat(format);
    qDebug() << "isvalide: " << format.isValid();

    _output = new QAudioOutput(format, this);
    _buffer = new AudioBufferDevice(decoder, this);
    _buffer->open(QIODevice::ReadOnly);
}

void AudioPlayer::setSourceFilename(const QString &fileName)
{
    qDebug() << "setSourceFilename" << fileName ;

//    auto content = new QMediaContent(QUrl(fname));
//    QMediaResource resource = content->canonicalResource();
//    decoder->setSourceFilename(fname);

    _buffer->clearQAbuffer();
    decoder->stop();
    decoder->setSourceFilename(fileName);
    decoder->start();
}

void AudioPlayer::play()
{
    //播放
    _output->start(_buffer);
}

void AudioPlayer::suspend()
{
    // 暂停
    _output->suspend();
}

void AudioPlayer::reset()
{
    // 停止
    _output->reset();
}