Question

我想把我的后置摄像头分成两个ui物体，比如镜头。但是，当我启动应用程序时出错。这是它：

如何将相机分成两个物体？这是我的代码：GamePage.xaml.cs

 public sealed partial class GamePage : Page
{
    readonly Game1 _game;

    public GamePage()
    {
        this.InitializeComponent();
        // Create the game.
       // var launchArguments = string.Empty;
        //_game = MonoGame.Framework.XamlGame<Game1>.Create(launchArguments, Window.Current.CoreWindow, swapChainPanel);
    }

    Windows.Media.Capture.MediaCapture captureManager;
    async private Task Start_Capture_Preview_Click()
    {
        captureManager = new MediaCapture();    //Define MediaCapture object  
        await captureManager.InitializeAsync();   //Initialize MediaCapture and   
        capturePreview.Source = captureManager;   //Start preiving on CaptureElement  
        capturePreview2.Source = captureManager;   //Start preiving on CaptureElement  
        await captureManager.StartPreviewAsync();  //Start camera capturing   
    }
    async private void Stop_Capture_Preview_Click()
    {
        await captureManager.StopPreviewAsync();  //stop camera capturing  

    }

    async private Task Start_Capture_Preview_ClickR()
    {
        captureManager = new MediaCapture();    //Define MediaCapture object  
        await captureManager.InitializeAsync();   //Initialize MediaCapture and   
        capturePreview2.Source = captureManager;   //Start preiving on CaptureElement  
        await captureManager.StartPreviewAsync();  //Start camera capturing   
    }


    protected override async void OnNavigatedTo(NavigationEventArgs e)
    {
        await Start_Capture_Preview_Click();
        await Start_Capture_Preview_ClickR();
    }

}

GamePage.xaml：

<Page
x:Class="Victoria_XVR.GamePage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:Victoria_XVR"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d">

<Grid x:Name="xD">
    <Grid.RowDefinitions>
        <RowDefinition Height="200" />
    </Grid.RowDefinitions>
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="300" />
        <ColumnDefinition Width="300" />
    </Grid.ColumnDefinitions>

    <CaptureElement x:Name="capturePreview" Grid.Row="0" Grid.Column="0"/>
    <CaptureElement x:Name="capturePreview2" Grid.Row="0" Grid.Column="1"/>
</Grid>

Answer 1

我不认为MediaCapture同时支持流式传输到多个CaptureElements。推荐这个作为解决方法有点痛苦，但理论上你可以在计时器中使用GetPreviewFrameAsync方法，并手动将这些帧渲染到Image控件。 a sample显示了如何使用API。我希望这会增加内存和CPU使用率，而不仅仅是渲染单个预览。

如何在Windows 10 Mobile上拆分屏幕摄像头

1 个答案: