title: UWP get live webcam video stream
body: <p>I was looking into the <a href="https://msdn.microsoft.com/library/windows/apps/br241124" rel="noreferrer"><code>MediaCapture</code></a> class, however it doesn't seem to expose what I'm looking for. I want the live <code>Stream</code> from the web cam - not to record it or preview it. I'm working on the <strong>Microsoft Cognitive Services Emotion API</strong> and I want to follow <a href="https://github.com/Microsoft/ProjectOxford-ClientSDK/blob/master/Emotion/Windows/Sample-WPF/EmotionDetectionUsingVideoPage.xaml.cs#L68" rel="noreferrer">this example</a>, but instead of getting a local video stream from the file system - I want to get a <code>Stream</code> from a web cam.</p>