Question

我正在尝试使用OSMF为视频添加提示点。我构建了一个OSMF视频播放器，我想使用它来代替FLVPlayback组件，这似乎是添加动作脚本提示点的唯一方法吗？

无论如何，我通过写这个来创建一个提示点：

var cuePoint:CuePoint = new CuePoint(CuePointType.ACTIONSCRIPT, 1, "good point", null);
            videoElement.addEventListener(MediaElementEvent.METADATA_ADD, onMetadataAdd);

            trace(cuePoint.time);

提示点时间追溯到“1”（成功）。

然后我从文档中获取了这段代码，认为这有助于在发布我的电影时跟踪提示点（以测试视频）

private function onMetadataAdd(event:MediaElementEvent):void
        {
            if (event.namespaceURL == CuePoint.DYNAMIC_CUEPOINTS_NAMESPACE)
            {
                var timelineMetadata:TimelineMetadata = videoElement.getMetadata(CuePoint.DYNAMIC_CUEPOINTS_NAMESPACE) as TimelineMetadata;
                timelineMetadata.addEventListener(TimelineMetadataEvent.MARKER_TIME_REACHED, onCuePoint);
            }
        }

        private function onCuePoint(event:TimelineMetadataEvent):void
        {
            var cuePoint:CuePoint = event.marker as CuePoint;
            trace("Cue Point at " + cuePoint.time);
        }

但是，当视频达到1秒时，我没有收到跟踪消息。谁能帮我？

Answer 1

我认为它应该只是private function onMetadata。

Answer 2

这是另一种添加更简单的提示点的方法：

    private function addVideoWithACuePoint()
    {
    url:String = "your-url";
    resource = new URLResource(url);
    videoElement = new VideoElement(resource);

    player = new MediaPlayer();
    player.media = videoElement;

    conainer = new MediaContainer(); 
    container.addMediaElement(videoElement);
    myTimelineMetadata = new TimelineMetadata(videoElement);
    myTimelineMetadata.addEventListener(TimelineMetadataEvent.MARKER_TIME_REACHED, onCuePointHandler, false, 0, true); 

   // add a cuepoint below:
    var cuePoint = new CuePoint(CuePointType.ACTIONSCRIPT,time, name, parameters);                  
    myTimelineMetadata.addMarker(cuePoint); 
}

基本上：

制作播放器和容器
将您的视频元素添加到播放器
然后您可以从视频元素
然后你可以添加提示点

OSMF - 为视频添加actionscript提示点？

2 个答案: