QML视频原生大小

Question

I am playing a video with QML like this:

import QtQuick 2.0
import QtMultimedia 5.0 


Video
{
  source:'movie.mov'
  width: 800
  height: 600
  autoPlay:true
}

which works, but I would like the movie to be displayed in its original resolution. So whatever movie file I load, I expect the Video element to scale to the video resolution. However,

import QtQuick 2.0
import QtMultimedia 5.0 


Video
{
  source:'movie.mov'
  autoPlay:true
}

will play the video (i can hear sound) but not display anything.

Any suggestions ? (Qt 5.1)

Answer 1

You can bind width and height to the video resolution like this:

import QtQuick 2.0
import QtMultimedia 5.0 


Video
{
  source:'movie.mov'
  width: metaData.resolution ? metaData.resolution.width : 0
  height: metaData.resolution ? metaData.resolution.height : 0
  autoPlay:true
}