QT中使用QMediaPlayer + QVideoWidget播放视频

项目中有要在qt中播放视频的要求，这里做下记录

CMakeLists.txt文件编写

主要修改如下两处

find_package(QT NAMES Qt6 Qt5 REQUIRED COMPONENTS Widgets multimedia multimediawidgets)
find_package(Qt${QT_VERSION_MAJOR} REQUIRED COMPONENTS Widgets multimedia multimediawidgets)target_link_libraries(ProjName PRIVATEQt${QT_VERSION_MAJOR}::WidgetsQt${QT_VERSION_MAJOR}::MultimediaWidgets
)

代码中如何编写

QVideoWidget *videoWidget = new QVideoWidget(ui->localPlayer);QMediaPlayer *player = new QMediaPlayer;player->setMedia(QMediaContent(QUrl(utils.string2Qstring(videoPath))));player->setVideoOutput(videoWidget);videoWidget->show();
player->play();

报错

出现报错

DirectShowPlayerService::doRender: Unresolved error code 0x80040266 (IDispatch error #102

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，可以从该处下载

https://github.com/Nevcairiel/LAVFilters/releases