Qt播放音视频文件

xiaoxiao2021-02-28  92

 

使用QMediaPlayer和QVideoWidget

         QHBoxLayout  *m_layout=newQHBoxLayout(this);

QMediaPlayer *m_player = new QMediaPlayer(this); m_player->setMedia(QUrl::fromLocalFile(QString::fromLocal8Bit("d:/QtTest/111.mp4"))); QVideoWidget *m_videoW = new QVideoWidget(this); m_layout->addWidget(m_videoW); this->setLayout(m_layout); m_player->setVideoOutput(m_videoW); m_videoW->show(); m_player->play();   代码写起来很简单,编译也能通过,但是运行就会出错

DirectShowPlayerService::doRender: Unresolved error code 0x80040266

 

如果文件路径不对或者文件名是中文的,则会显示如下错误:

DirectShowPlayerService::doSetUrlSource: Unresolved error code 0x80004005 ()

 

 

网上查了下,

Qt 中的多媒体播放,底层是使用DirectShowPlayerService,所以安装一个DirectShow解码器,例如LAV Filters,就可以解决运行出错问题 相关帖子  http://bbs.csdn.NET/topics/391040873 https://github.com/qyvlik/Flat.qml/issues/4

 

下载LAV Filters地址

http://forum.doom9.org/showthread.php?t=156191  里的

Binaries for the most recent version are available here: Version 0.68.1: Installer (both x86/x64) -- Zips: 32-bit & 64-bit Download 3D Plugin: 32-bit & 64-bit

选择32bit或者64bit下

下载完安装后,再运行程序,运行无错误,能够正常播放视频。

 

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