使用QMediaPlayer在资源中播放mp3文件。

I try to play mp3 files declared in the resource, but it show:

我试着播放资源中声明的mp3文件，但它显示:

Btn clicked
current media: "qrc://sound/sound/FarAway.mp3"
Error :  QMediaPlayer::FormatError
Media state :  QMediaPlayer::InvalidMedia

Here's how I set media:

我是这样设置媒体的:

player = new QMediaPlayer(this);
player->setMedia(QUrl(mediaFilePath)); 
qDebug() << "current media: " << player->currentMedia().canonicalUrl().toString();

connect(player, SIGNAL(stateChanged(QMediaPlayer::State)), SLOT(handleStateChanged(QMediaPlayer::State)));
connect(player, SIGNAL(mediaStatusChanged(QMediaPlayer::MediaStatus)), SLOT(handleMediaStateChanged(QMediaPlayer::MediaStatus)));
connect(player, SIGNAL(error(QMediaPlayer::Error)), SLOT(handleError(QMediaPlayer::Error)));

According to this post it said QMediaPlayer need to be called play() after the callback of mediaStatusChanged(), which is what I've done exactly. So what's the problem???

根据这篇文章，它说在mediaStatusChanged()回调后，QMediaPlayer需要被称为play()，这正是我所做的。所以有什么问题? ? ?

P.S. I could play the mp3 file from the QMediaPlayer Example as local file.

我可以从QMediaPlayer示例中播放mp3文件作为本地文件。

UPDATE 1: I can play the mp3 file as local file...

更新1:我可以播放mp3文件作为本地文件…

2 个解决方案

#1

Your problem is now no longer a problem, you can play a Qt resource in the QMediaPlayer. Answer found here, and I'm confirming it here in case people are looking.

现在您的问题不再是问题，您可以在QMediaPlayer中播放Qt资源。在这里找到答案，我在这里确认一下，以防有人看。

This code works for me when testing in my local project.

这个代码在我的本地项目中测试时适用。

player->setMedia(QUrl("qrc:/audio/audio/Revival_Song01.mp3"));

#2

You should play a file from disk; not a Qt resource. Since the resources are not supported yet. You can copy the file from resource to your hard drive on the fly and then play it :

您应该从磁盘播放文件;不是一个Qt的资源。因为资源还没有被支持。您可以将文件从资源复制到您的硬盘上，然后播放它:

QFile::copy(":/files/FarAway.mp3" , "/some/path/FarAway.mp3");

#1