如何在低分辨率WPF中播放视频？ [英] How to Play a Video in Low Resolution WPF?

问题描述

你好！我正在制作一个视频播放器..主窗口包含2 MediaElements ，其中一个是全尺寸（应该以真实质量），另一个是如此之小（60x60），它应该显示同一视频的小预览并在搜索栏中显示为气球...

<我的问题是当我尝试播放高清视频时，应用程序使用了大量的CPU（+ 70％），因为它同时播放了两个完全高清的视频..所以我想要的是播放小视频分辨率非常低因此我可以降低CPU使用率， 或来调整视频大小并保留在内存中。谢谢



这是我用于小视频的内容：

Hello there! I'm making a Video player.. main window contains 2 MediaElements, one of them is full size ( which supposed to show videos in its real quality ), and the other is so small ( 60x60 ) which is supposed to show small preview of the same video and appears as a balloon at the seekbar...
My Problem is when I try to play an HD video, the app use a lot of CPU (+70%) because it is playing two fully HD videos at the same time.. so what I want is to play the small video at very low resolution so I could decrease CPU usage, OR to resize Video and keep in Memory. Thanks

This what I use for the small Video:

<Ellipse Height="80" Width="80" Name="elipsemedia" HorizontalAlignment="Left" VerticalAlignment="Top" Stroke="White" StrokeThickness="5" >
    <Ellipse.Fill>
        <VisualBrush TileMode="None">
            <VisualBrush.Visual>
                <MediaElement x:Name="MediaPreview" Source="Source.mp4" Volume="0" ScrubbingEnabled="True" Stretch="UniformToFill" LoadedBehavior="Pause" Width="80" />
            </VisualBrush.Visual>
        </VisualBrush>
    </Ellipse.Fill>
</Ellipse>

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