Question

我写了一个由两部分组成的轻音频播放器

核心：它有一个公共接口和一个私有的接口。在pimpl（AudioPlayerPrivate）中，我正在创建音频后端（解码，混合）并将其移动到工作线程。

AudioPlayerPrivate::AudioPlayerPrivate(QObject *parent) :
             QObject(parent)
{
    playerThread_ = new QThread(this);
    playerCore_   = new AudioPlayerCore;
       qDebug()<<"AudioPlayerCore thread:"<<playerCore_->thread();
    playerCore_->moveToThread(playerThread_);
       qDebug()<<"AudioPlayerCore thread after moving to playerThread:"<<playerCore_->thread();
    playerThread_->start();
}

gui：它正在从动态库中加载核心。

现在让我想知道的是，当gui加载并且我正在播放音乐时，当我点击（并且不释放）鼠标在窗口装饰的关闭按钮（X）上时，音频暂停直到我释放鼠标。当我使用不同的线程进行播放时，这怎么可能？

调试输出如下：

PlayerGUI thread: 0x4a83a8
AudioPlayer thread: 0x4a83a8
AudioPlayerPrivate Constructor
AudioPlayerPrivate thread (this->thread()): QThread(0x4a83a8)
AudioPlayerPrivate thread (QCoreApplication::instance()->thread()): QThread(0x4a83a8)
AudioPlayerPrivate thread (QThread::currentThread): QThread(0x4a83a8)
AudioPlayerCore Constructor
AudioPlayerCore thread: QThread(0x4a83a8)
AudioPlayerCore thread after moving to playerThread: QThread(0x4bb808)
AudioPlayerPrivate::play()
AudioPlayerCore::onPlayRequest()
AudioPlayerCore thread (this->thread()): QThread(0x4bb808)
AudioPlayerCore thread (QCoreApplication::instance()->thread()): QThread(0x4a83a8)
AudioPlayerCore thread (QThread::currentThread): QThread(0x4a83a8)

从输出看起来我还没有成功地将核心移动到线程中。 3个线程调试中只有一个（上面最后3行）实际显示了新线程的ID。我缺少的线程是否有明显的东西？

以下是我如何调用播放开始（在AudioPlayerPrivate中）：

connect(this,SIGNAL(playRequest(InputSource*,bool)),
        playerCore_,SLOT(onPlayRequest(InputSource*,bool)),
        Qt::DirectConnection);

bool startPlaybackImmediately = false;
emit playRequest(source,startPlaybackImmediately);

尽管有单独的线程，GUI阻止音频播放

0 个答案: