Qt5.4.1播放视频语音文件

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首先.pro文件添加 multimedia和multimediawidgets

QT       +=  multimedia multimediawidgets

.cpp或者.h文件导入qmediaplayer.h、QMediaPlaylist、qvideowidget.h

#include "qmediaplayer.h"

#include "QMediaPlaylist"

#include "qvideowidget.h"

(一) 播放单个通过槽

//    player = new QMediaPlayer;

//    connect(player, SIGNAL(positionChanged(qint64)), this, SLOT(positionChanged(qint64)));

//    player->setMedia(QUrl::fromLocalFile("E:/xxxx/voice/xxx.wav"));

//    player->setVolume(1000);

//    player->play();

(二)通过QMediaPlaylist 播放视频语音文件列表可单个播放

.h文件代码

QMediaPlayer *player; //语音播放
        QMediaPlaylist *playList; //播放文件列表
        QVideoWidget *videoWidget;//播放控件

.cpp文件代码

QString strDirPath = QCoreApplication::applicationDirPath();//项目根目录

       playList = new QMediaPlaylist;

        playList->addMedia(QUrl::fromLocalFile(strDirPath+"/voice/welcome.mp3"));

        //playList->addMedia(QUrl::fromLocalFile(strDirPath+"/voice/x.mp3"));

        playlist->addMedia(QUrl("http://example.com/movie3.mp4"));

        playList->setCurrentIndex(1);

        player = new QMediaPlayer;

        player->setPlaylist(playList);

        videoWidget = new QVideoWidget;

        player->setVideoOutput(videoWidget);

        //videoWidget->move(10000,10000);

        videoWidget->show();

        //player->setVolume(1000);

        player->play();

第二种在windows下试过可以

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