MediaPlayer.VideoFrameAvailable 事件

定义

命名空间:

Windows.Media.Playback

当 IsVideoFrameServerEnabled 设置为 true 并且新的视频帧可供处理时发生。

// Register
event_token VideoFrameAvailable(TypedEventHandler<MediaPlayer, IInspectable const&> const& handler) const;

// Revoke with event_token
void VideoFrameAvailable(event_token const* cookie) const;

// Revoke with event_revoker
MediaPlayer::VideoFrameAvailable_revoker VideoFrameAvailable(auto_revoke_t, TypedEventHandler<MediaPlayer, IInspectable const&> const& handler) const;

public event TypedEventHandler<MediaPlayer,object> VideoFrameAvailable;

function onVideoFrameAvailable(eventArgs) { /* Your code */ }
mediaPlayer.addEventListener("videoframeavailable", onVideoFrameAvailable);
mediaPlayer.removeEventListener("videoframeavailable", onVideoFrameAvailable);
- or -
mediaPlayer.onvideoframeavailable = onVideoFrameAvailable;

Public Custom Event VideoFrameAvailable As TypedEventHandler(Of MediaPlayer, Object) 

事件类型

TypedEventHandler<MediaPlayer,Object>

TypedEventHandler<MediaPlayer,IInspectable>

Windows 要求

设备系列	Windows 10 Creators Update (在 10.0.15063.0 中引入)
API contract	Windows.Foundation.UniversalApiContract (在 v4.0 中引入)

注解

在此事件的处理程序中，调用 CopyFrameToVideoSurface 以获取视频帧数据。