public void StaticOverlay()
{
TestHelper.BeginTest("StaticOverlay");
TestHelper.SetConfigurationDefaults();
MMALCameraConfig.StillResolution = Resolution.As03MPixel;
MMALCameraConfig.StillEncoding = MMALEncoding.I420;
MMALCameraConfig.StillSubFormat = MMALEncoding.I420;
AsyncContext.Run(async() =>
{
var filename = string.Empty;
using (var imgCaptureHandler = new ImageStreamCaptureHandler("/home/pi/images/tests/staticoverlay", "raw"))
{
TestHelper.CleanDirectory("/home/pi/images/tests");
TestHelper.CleanDirectory("/home/pi/images/tests/staticoverlay");
await _fixture.MMALCamera.TakeRawPicture(imgCaptureHandler);
filename = imgCaptureHandler.GetFilepath();
}
PreviewConfiguration previewConfig = new PreviewConfiguration
{
FullScreen = false,
PreviewWindow = new Rectangle(160, 0, 640, 480),
Layer = 2,
Opacity = 1
};
MMALCameraConfig.StillResolution = Resolution.As1080p;
MMALCameraConfig.StillEncoding = MMALEncoding.OPAQUE;
using (var imgCaptureHandler = new ImageStreamCaptureHandler("/home/pi/images/tests", "jpg"))
using (var imgEncoder = new MMALImageEncoder(imgCaptureHandler))
using (var video = new MMALVideoRenderer(previewConfig))
{
_fixture.MMALCamera.ConfigureCameraSettings();
video.ConfigureRenderer();
PreviewOverlayConfiguration overlayConfig = new PreviewOverlayConfiguration
{
FullScreen = true,
PreviewWindow = new Rectangle(50, 0, 640, 480),
Layer = 1,
Resolution = new Resolution(640, 480),
Encoding = MMALEncoding.I420,
Opacity = 255
};
var overlay = _fixture.MMALCamera.AddOverlay(video, overlayConfig, File.ReadAllBytes(filename));
overlay.ConfigureRenderer();
overlay.UpdateOverlay();
// Create our component pipeline.
imgEncoder.ConfigureOutputPort(0, MMALEncoding.JPEG, MMALEncoding.I420, 90);
_fixture.MMALCamera.Camera.StillPort.ConnectTo(imgEncoder);
_fixture.MMALCamera.Camera.PreviewPort.ConnectTo(video);
_fixture.MMALCamera.PrintPipeline();
await _fixture.MMALCamera.ProcessAsync(_fixture.MMALCamera.Camera.StillPort);
if (System.IO.File.Exists(imgCaptureHandler.GetFilepath()))
{
var length = new System.IO.FileInfo(imgCaptureHandler.GetFilepath()).Length;
Assert.True(length > 0);
}
else
{
Assert.True(false, $"File {imgCaptureHandler.GetFilepath()} was not created");
}
}
});
}
/// <summary>
/// Creates a new instance of a Video renderer component. This component is intended to be connected to the Camera's preview port
/// and is used to measure exposure. It also produces real-time video to the Pi's HDMI output from the camera.
/// </summary>
/// <param name="config">The configuration object for this renderer.</param>
public MMALVideoRenderer(PreviewConfiguration config)
: base(MMALParameters.MMAL_COMPONENT_DEFAULT_VIDEO_RENDERER)
{
this.EnableComponent();
this.Configuration = config;
}
