View source for Play Audio File Using Qt Mobility

[[Category:HowTo]]<br />[[Category:snippets]]

'''English''' [[Play_Audio_File_Using_Qt_Mobility_Bulgarian|Български]]

= Play Audio File Using Qt Mobility =

== Overview ==

This article shows how to play audio file using &quot;QMediaPlayer&amp;quot;:http://doc.qt.nokia.com/qtmobility/qmediaplayer.html from Qt Mobility 1.1.

== Project Configuration ==

Modify the project configuration .pro file by including Qt Mobility support:

<code><br />CONFIG ''= mobility<br />MOBILITY''= multimedia<br /></code>

== Source Code ==

* .h 

Include required headers:<br /><code><br />#include &lt;QMediaPlayer&amp;gt;<br /></code>

Declare slot and private members:<br /><code><br />private slots:<br /> void statusChanged(QMediaPlayer::MediaStatus status);

private:

QMediaPlayer '''m_pPlayer;<br /></code>
<br />''' .cpp

Play a file located on the device:<br /><code><br />m_pPlayer = new QMediaPlayer(this);<br />connect(m_pPlayer, SIGNAL (positionChanged(qint64)), this, SLOT (statusChanged(qint64)));<br />//Select a file<br />m_pPlayer-&gt;setMedia(QUrl::fromLocalFile&amp;amp;#40;&quot;e:SoundsDigitalGirl_Rules.mp3&amp;quot;&amp;#41;);<br />//Set the volume<br />m_pPlayer-&gt;setVolume(50);<br />m_pPlayer-&gt;play();<br /></code>

Implement the declared slot:<br /><code><br />void MainWindow::statusChanged(QMediaPlayer::MediaStatus status)<br />{<br /> if ( (QMediaPlayer::LoadedMedia == status) &amp;&amp; m_pPlayer)<br /> {<br /> m_pPlayer-&gt;play();<br /> }<br />}