public async Task CS_W_MediaReader_LumiaEffect()
{
using (var mediaReader = await MediaReader.CreateFromPathAsync("ms-appx:///car.mp4", AudioInitialization.Deselected, VideoInitialization.Nv12))
using (var mediaResult = await mediaReader.VideoStream.ReadAsync())
{
var streamProperties = mediaReader.VideoStream.GetCurrentStreamProperties();
int width = (int)streamProperties.Width;
int height = (int)streamProperties.Height;
Assert.AreEqual(320, width);
Assert.AreEqual(240, height);
var inputSample = (MediaSample2D)mediaResult.Sample;
Assert.AreEqual(MediaSample2DFormat.Nv12, inputSample.Format);
Assert.AreEqual(320, inputSample.Width);
Assert.AreEqual(240, inputSample.Height);
using (var outputSample = new MediaSample2D(MediaSample2DFormat.Nv12, width, height))
{
Assert.AreEqual(MediaSample2DFormat.Nv12, outputSample.Format);
Assert.AreEqual(320, outputSample.Width);
Assert.AreEqual(240, outputSample.Height);
using (var inputBuffer = inputSample.LockBuffer(BufferAccessMode.Read))
using (var outputBuffer = outputSample.LockBuffer(BufferAccessMode.Write))
{
// Wrap MediaBuffer2D in Bitmap
var inputBitmap = new Bitmap(
new Size(width, height),
ColorMode.Yuv420Sp,
new uint[] { inputBuffer.Planes[0].Pitch, inputBuffer.Planes[1].Pitch },
new IBuffer[] { inputBuffer.Planes[0].Buffer, inputBuffer.Planes[1].Buffer }
);
var outputBitmap = new Bitmap(
new Size(width, height),
ColorMode.Yuv420Sp,
new uint[] { outputBuffer.Planes[0].Pitch, outputBuffer.Planes[1].Pitch },
new IBuffer[] { outputBuffer.Planes[0].Buffer, outputBuffer.Planes[1].Buffer }
);
// Apply effect
var effect = new FilterEffect();
effect.Filters = new IFilter[] { new WatercolorFilter() };
effect.Source = new BitmapImageSource(inputBitmap);
var renderer = new BitmapRenderer(effect, outputBitmap);
await renderer.RenderAsync();
}
// Save the file
var folder = await KnownFolders.PicturesLibrary.CreateFolderAsync("MediaCaptureReaderTests", CreationCollisionOption.OpenIfExists);
var file = await folder.CreateFileAsync("CS_W_MediaReader_TestLumiaEffect.jpg", CreationCollisionOption.ReplaceExisting);
await outputSample.SaveToFileAsync(file, ImageCompression.Jpeg);
Logger.LogMessage("Saved {0}", file.Path);
}
}
}
public void CS_WP_N_Basic()
{
ExecuteOnUIThread(async() =>
{
var capture = new MediaCapture();
await capture.InitializeAsync(new MediaCaptureInitializationSettings
{
StreamingCaptureMode = StreamingCaptureMode.Video
});
var graphicsDevice = MediaGraphicsDevice.CreateFromMediaCapture(capture);
var previewProps = (VideoEncodingProperties)capture.VideoDeviceController.GetMediaStreamProperties(MediaStreamType.VideoPreview);
var image = new SurfaceImageSource((int)previewProps.Width, (int)previewProps.Height);
var imagePresenter = ImagePresenter.CreateFromSurfaceImageSource(
image,
graphicsDevice,
(int)previewProps.Width,
(int)previewProps.Height
);
var panel = new SwapChainPanel();
var swapChainPresenter = ImagePresenter.CreateFromSwapChainPanel(
panel,
graphicsDevice,
(int)previewProps.Width,
(int)previewProps.Height
);
var readerProps = VideoEncodingProperties.CreateUncompressed(MediaEncodingSubtypes.Bgra8, previewProps.Width, previewProps.Height);
readerProps.FrameRate.Numerator = previewProps.FrameRate.Numerator;
readerProps.FrameRate.Denominator = previewProps.FrameRate.Denominator;
var captureReader = await CaptureReader.CreateAsync(
capture, new MediaEncodingProfile
{
Video = readerProps
});
using (MediaSample2D sample = (MediaSample2D)await captureReader.GetVideoSampleAsync())
{
swapChainPresenter.Present(sample);
imagePresenter.Present(sample);
var folder = await KnownFolders.PicturesLibrary.CreateFolderAsync("MediaCaptureReaderTests", CreationCollisionOption.OpenIfExists);
var file = await folder.CreateFileAsync("CS_WP_N_Basic.jpg", CreationCollisionOption.ReplaceExisting);
await sample.SaveToFileAsync(file, ImageCompression.Jpeg);
}
});
}
