圖像捕捉流SoftwareBitmap

Question

我的代碼：

var stream = new InMemoryRandomAccessStream(); 
ImageEncodingProperties properties = ImageEncodingProperties.CreateJpeg(); 
await _mediaCapture.CapturePhotoToStreamAsync(properties, stream); 
IBuffer buffer = new byte[stream.Size].AsBuffer(); 
await stream.ReadAsync(buffer, (uint)stream.Size, InputStreamOptions.None); 
SoftwareBitmap sfbmp = SoftwareBitmap.CreateCopyFromBuffer(buffer, BitmapPixelFormat.Bgra8, 4176, 3120); // Exception is thrown here 

例外：

內存不足的響應

老實說，我不知道有關的位圖緩存東西所以任何人都幫我？

Answer 1

我解決它通過使用BitmapDecoder

var stream = new InMemoryRandomAccessStream(); 
ImageEncodingProperties properties = ImageEncodingProperties.CreateJpeg(); 
await _mediaCapture.CapturePhotoToStreamAsync(properties, stream); 
var decoder = await BitmapDecoder.CreateAsync(stream); 
SoftwareBitmap sfbmp = await decoder.GetSoftwareBitmapAsync();