Multimedia QML Plugin

Video

Adding video playback, with sound, to a Qt Quick scene is also easy. The process is very similar to that of Audio above, in fact Video shares many of the property names, methods and signals. Here is the equivalent sample code to implement a video playback element in a scene

 Video {
     id: video
     width : 800
     height : 600
     source: "video.avi"

     MouseArea {
         anchors.fill: parent
         onClicked: {
             video.play()
         }
     }

     focus: true
     Keys.onSpacePressed: video.paused = !video.paused
     Keys.onLeftPressed: video.position -= 5000
     Keys.onRightPressed: video.position += 5000
 }

There are similar features like play() with new features specific to video.

In the above sample when the parent of MouseArea is clicked, an area of 800x600 pixels with an id of 'video', the source "video.avi" will play in that area. Notice also that signals for the Keys element have been defined so that a spacebar will toggle the pause button; the left arrow will move the current position in the video to 5 seconds previously; and the right arrow will advance the current position in the video by 5 seconds.

Most of the differences will obviously be about video control and information. There are many properties associated with the Video element, most of them deal with meta-data, control of the video media and aspects of presentation.

 import Qt 4.7
 import QtMultimediaKit 1.1


     SoundEffect {
         id: effect
         source: "test.wav"
     }
     MouseArea {
         id: playArea
         anchors.fill: parent
         onPressed:  { effect.play() }
     }

 import Qt 4.7
 import QtMultimediaKit 1.1

 Camera {
     focus : visible // to receive focus and capture key events when visible

     flashMode: Camera.FlashRedEyeReduction
     whiteBalanceMode: Camera.WhiteBalanceFlash
     exposureCompensation: -1.0

     onImageCaptured : {
         photoPreview.source = preview  // Show the preview in an Image element
     }

 }