#include<QtCore/QCoreApplication>
#include<QAudioFormat>
#include<QAudioOutput>
#include<QThread>
#include<iostream>
using namespace std;
//准备好PCM数据
//ffmpeg -i  PP.mp4 -f s16le out.pcm
int main(int argc, char *argv[])
{QCoreApplication a(argc, argv);QAudioFormat fmt;fmt.setSampleRate(16000);//样本率fmt.setSampleSize(16);//样本大小fmt.setChannelCount(2);//通道大小fmt.setCodec("audio/pcm");fmt.setByteOrder(QAudioFormat::LittleEndian);//小端模式fmt.setSampleType(QAudioFormat::UnSignedInt);QAudioOutput *out = new QAudioOutput(fmt);QIODevice *io = out->start();//开始播放int size = out->periodSize();char *buf = new char[size];FILE *fp = fopen("16k.pcm", "rb");if (!fp){cout << "文件打开失败" << endl;}while (!feof(fp)){if (out->bytesFree() < size){QThread::msleep(1);continue;}int len = fread(buf, 1, size, fp);if (len < 0)break;io->write(buf, len);}fclose(fp);delete[]buf;return a.exec();
}

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