Question

我正在尝试在VideoDisplay中获取视频源的尺寸：

private function loadMovie () : void {
    vid = new VideoDisplay();
    vid.source = _item.itemLg;
    vid.play();
    vid.addEventListener ( MediaPlayerStateChangeEvent.MEDIA_PLAYER_STATE_CHANGE, onVideoPlay );
    addElement(vid);
}

private function onVideoPlay ( event : MediaPlayerStateChangeEvent ) : void {
    if ( event.state == MediaPlayerState.PLAYING ) {
           trace (vid.videoObject.width + " " + vid.videoObject.height);
    }
}

但结果总是为0。

我得到了相同的结果：

trace (vid.videoObject.videoWidth + " " + vid.videoObject.videoHeight);

还有其他想法吗？

由于

Answer 1

假设它是mx.controls.VideoDisplay，一旦视频加载，您应该可以使用：

trace (vid.videoWidth + " " + vid.videoHeight);

没有中间的videoObject。

您还可以尝试侦听ready事件，该事件应在成功加载视频时触发，而不是每次状态更改时触发：

mx.events.VideoEvent.READY

Answer 2

我找到了一个解决方案，但我不知道为什么会这样做：

import org.osmf.events.MediaPlayerStateChangeEvent;
import org.osmf.media.MediaPlayerState;

import spark.components.VideoDisplay;

private var vid : VideoDisplay;
private var videoLoadCompleteTimer : Timer = new Timer (1, 5);

private function loadMovie () : void {
    vid = new VideoDisplay();
    vid.source = _item.itemLg;
    vid.autoPlay = false;
    vid.addEventListener ( MediaPlayerStateChangeEvent.MEDIA_PLAYER_STATE_CHANGE, onVideoPlay );
          addElement(vid);
}

private function onVideoPlay ( event : MediaPlayerStateChangeEvent ) : void {
    if ( event.state == MediaPlayerState.PLAYING ) {
        videoLoadCompleteTimer.addEventListener(TimerEvent.TIMER_COMPLETE, onVideoStart );
        videoLoadCompleteTimer.start();
    }
}

private function onVideoStart ( event : TimerEvent ) : void {
    trace(vid.videoObject.videoHeight + " " + vid.videoObject.videoWidth);
    vid.play();
    videoLoadCompleteTimer.reset();
}

我认为这有点脏......

Answer 3

我尝试使用READY事件，但它有时只能工作。主要是第二次或第三次点击。

private function loadMovie () : void {
    vid = new VideoDisplay();
    vid.source = _item.itemLg;
    vid.autoPlay = false;
    vid.addEventListener ( MediaPlayerStateChangeEvent.MEDIA_PLAYER_STATE_CHANGE, onVideoPlay );
    addElement(vid);
}

private function onVideoPlay ( event : MediaPlayerStateChangeEvent ) : void {
    if ( event.state == MediaPlayerState.READY ) {
        vid.play();
    } else if ( event.state == MediaPlayerState.PLAYING ) {
        trace ("VidDimensions: " + vid.videoObject.videoWidth + " " + vid.videoObject.videoHeight);
        this.height = vid.videoObject.videoHeight;
        this.width = vid.videoObject.videoWidth;
        vid.move ( -vid.videoObject.videoWidth/2, -vid.videoObject.videoHeight/2 );
    }
}

在VideoDisplay中获取视频的维度

3 个答案: