0

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);
    }
}

但结果始终为 0。

我得到了相同的结果：

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

还有什么想法吗？

谢谢

4

3 回答 3

0

假设它是一个 mx.controls.VideoDisplay，一旦视频加载，您应该能够使用：

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

中间没有videoObject。

您还可以尝试侦听 ready 事件，该事件应在视频加载成功时触发，而不是每次状态更改时触发：

mx.events.VideoEvent.READY
于 2011-11-02T02:55:06.377 回答
0

我尝试了 READY 事件，但它只在某些时候有效。主要是在第二次或第三次点击时。

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 );
    }
}
于 2011-11-04T10:35:17.500 回答
0

我找到了一个解决方案，但我不知道为什么会这样：

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();
}

我觉得有点脏。。。

于 2011-11-02T15:45:09.707 回答