private async Task ResizePicture(string extension, MMALEncoding encoding, MMALEncoding pixelFormat, int width, int height)
{
using (var imgCaptureHandler = new ImageStreamCaptureHandler("/home/pi/images/", extension))
using (var resizer = new MMALResizerComponent())
using (var imgEncoder = new MMALImageEncoder())
using (var nullSink = new MMALNullSinkComponent())
{
this.Cam.ConfigureCameraSettings();
await Task.Delay(2000);
var resizerConfig = new MMALPortConfig(pixelFormat, pixelFormat, width: width, height: height);
var encoderConfig = new MMALPortConfig(encoding, pixelFormat, quality: 90);
// Create our component pipeline.
resizer.ConfigureInputPort(new MMALPortConfig(MMALCameraConfig.Encoding, MMALCameraConfig.EncodingSubFormat), this.Cam.Camera.StillPort, null);
resizer.ConfigureOutputPort(resizerConfig, null);
imgEncoder.ConfigureOutputPort(encoderConfig, imgCaptureHandler);
this.Cam.Camera.StillPort.ConnectTo(resizer);
resizer.Outputs[0].ConnectTo(imgEncoder);
this.Cam.Camera.PreviewPort.ConnectTo(nullSink);
await this.Cam.ProcessAsync(this.Cam.Camera.StillPort);
}
}
public async Task RecordVideoDirectlyFromResizer()
{
TestHelper.BeginTest("RecordVideoDirectlyFromResizer");
TestHelper.SetConfigurationDefaults();
TestHelper.CleanDirectory("/home/pi/videos/tests");
using (var vidCaptureHandler = new VideoStreamCaptureHandler("/home/pi/videos/tests", "raw"))
using (var preview = new MMALVideoRenderer())
using (var resizer = new MMALResizerComponent())
{
Fixture.MMALCamera.ConfigureCameraSettings();
// Use the resizer to resize 1080p to 640x480.
var portConfig = new MMALPortConfig(MMALEncoding.I420, MMALEncoding.I420, 640, 480, 0, 0, 0, false, null);
resizer.ConfigureOutputPort <VideoPort>(0, portConfig, vidCaptureHandler);
// Create our component pipeline.
Fixture.MMALCamera.Camera.VideoPort
.ConnectTo(resizer);
Fixture.MMALCamera.Camera.PreviewPort
.ConnectTo(preview);
// Camera warm up time
await Task.Delay(2000);
CancellationTokenSource cts = new CancellationTokenSource(TimeSpan.FromSeconds(15));
// Record video for 20 seconds
await Fixture.MMALCamera.ProcessAsync(Fixture.MMALCamera.Camera.VideoPort, cts.Token);
Fixture.CheckAndAssertFilepath(vidCaptureHandler.GetFilepath());
}
}
public async Task RecordVideoDirectlyFromResizerWithSplitterComponent()
{
TestHelper.BeginTest("RecordVideoDirectlyFromResizerWithSplitterComponent");
TestHelper.SetConfigurationDefaults();
TestHelper.CleanDirectory("/home/pi/videos/tests");
// I am only using a single output here because due to the disk IO performance on the Pi you ideally need to be
// using a faster storage medium such as the ramdisk to output to multiple files.
using (var vidCaptureHandler = new VideoStreamCaptureHandler("/home/pi/videos/tests", "h264"))
using (var preview = new MMALVideoRenderer())
using (var splitter = new MMALSplitterComponent())
using (var resizer = new MMALResizerComponent())
{
Fixture.MMALCamera.ConfigureCameraSettings();
var splitterPortConfig = new MMALPortConfig(MMALEncoding.OPAQUE, MMALEncoding.I420);
var resizerPortConfig = new MMALPortConfig(MMALEncoding.I420, MMALEncoding.I420, width: 1024, height: 768, timeout: DateTime.Now.AddSeconds(15));
// Create our component pipeline.
splitter.ConfigureInputPort(new MMALPortConfig(MMALEncoding.OPAQUE, MMALEncoding.I420), Fixture.MMALCamera.Camera.VideoPort, null);
splitter.ConfigureOutputPort(0, splitterPortConfig, null);
resizer.ConfigureOutputPort <VideoPort>(0, resizerPortConfig, vidCaptureHandler);
// Create our component pipeline.
Fixture.MMALCamera.Camera.VideoPort
.ConnectTo(splitter);
splitter.Outputs[0].ConnectTo(resizer);
Fixture.MMALCamera.Camera.PreviewPort
.ConnectTo(preview);
// Camera warm up time
await Task.Delay(2000);
await Fixture.MMALCamera.ProcessAsync(Fixture.MMALCamera.Camera.VideoPort);
Fixture.CheckAndAssertFilepath(vidCaptureHandler.GetFilepath());
}
}
private async Task BuildCameraPipelineAsync(CancellationToken cancellationToken)
{
camera.ConfigureCameraSettings();
this.imageEncoder = new MMALImageEncoder();
this.memoryStreamHandler = new MemoryStreamCaptureHandler();
this.resizer = new MMALResizerComponent();
this.nullSink = new MMALNullSinkComponent();
this.portConfig = new MMALPortConfig(MMALEncoding.JPEG, MMALEncoding.I420, 90);
this.resizerPortConfig = new MMALPortConfig(MMALEncoding.I420, MMALEncoding.I420, 1024, 768, 0, 0, 0, false, null);
this.imageEncoder.ConfigureOutputPort(this.portConfig, memoryStreamHandler);
this.resizer.ConfigureInputPort(new MMALPortConfig(MMALEncoding.OPAQUE, MMALEncoding.I420), camera.Camera.StillPort, null)
.ConfigureOutputPort(this.resizerPortConfig, null);
camera.Camera.StillPort.ConnectTo(resizer);
this.resizer.Outputs[0].ConnectTo(imageEncoder);
camera.Camera.PreviewPort.ConnectTo(nullSink);
await Task.Delay(TimeSpan.FromSeconds(2), cancellationToken);
}
private void ClearCameraPipeline()
{
if (this.nullSink != null)
{
this.nullSink.Dispose();
this.nullSink = null;
}
if (this.imageEncoder != null)
{
this.imageEncoder.Dispose();
this.imageEncoder = null;
}
if (this.resizer != null)
{
this.resizer.Dispose();
this.resizer = null;
}
if (this.memoryStreamHandler != null)
{
this.memoryStreamHandler.Dispose();
this.memoryStreamHandler = null;
}
}
public async Task RecordVideoDirectlyFromResizerWithSplitterComponent()
{
TestHelper.BeginTest("RecordVideoDirectlyFromResizerWithSplitterComponent");
TestHelper.SetConfigurationDefaults();
TestHelper.CleanDirectory("/home/pi/videos/tests");
using (var vidCaptureHandler = new VideoStreamCaptureHandler("/home/pi/videos/tests", "raw"))
using (var vidCaptureHandler2 = new VideoStreamCaptureHandler("/home/pi/videos/tests", "raw"))
using (var vidCaptureHandler3 = new VideoStreamCaptureHandler("/home/pi/videos/tests", "raw"))
using (var vidCaptureHandler4 = new VideoStreamCaptureHandler("/home/pi/videos/tests", "raw"))
using (var preview = new MMALVideoRenderer())
using (var splitter = new MMALSplitterComponent())
using (var resizer = new MMALResizerComponent())
using (var resizer2 = new MMALResizerComponent())
using (var resizer3 = new MMALResizerComponent())
using (var resizer4 = new MMALResizerComponent())
{
Fixture.MMALCamera.ConfigureCameraSettings();
var splitterPortConfig = new MMALPortConfig(MMALEncoding.OPAQUE, MMALEncoding.I420, 0, 0, null);
// Create our component pipeline.
splitter.ConfigureInputPort(new MMALPortConfig(MMALEncoding.OPAQUE, MMALEncoding.I420, 0), Fixture.MMALCamera.Camera.VideoPort, null);
splitter.ConfigureOutputPort(0, splitterPortConfig, null);
splitter.ConfigureOutputPort(1, splitterPortConfig, null);
splitter.ConfigureOutputPort(2, splitterPortConfig, null);
splitter.ConfigureOutputPort(3, splitterPortConfig, null);
var portConfig = new MMALPortConfig(MMALEncoding.I420, MMALEncoding.I420, 1024, 768, 0, 0, 0, false, DateTime.Now.AddSeconds(20));
var portConfig2 = new MMALPortConfig(MMALEncoding.I420, MMALEncoding.I420, 800, 600, 0, 0, 0, false, DateTime.Now.AddSeconds(20));
var portConfig3 = new MMALPortConfig(MMALEncoding.I420, MMALEncoding.I420, 640, 480, 0, 0, 0, false, DateTime.Now.AddSeconds(15));
var portConfig4 = new MMALPortConfig(MMALEncoding.I420, MMALEncoding.I420, 320, 240, 0, 0, 0, false, DateTime.Now.AddSeconds(20));
resizer.ConfigureOutputPort <VideoPort>(0, portConfig, vidCaptureHandler);
resizer2.ConfigureOutputPort <VideoPort>(0, portConfig2, vidCaptureHandler2);
resizer3.ConfigureOutputPort <VideoPort>(0, portConfig3, vidCaptureHandler3);
resizer4.ConfigureOutputPort <VideoPort>(0, portConfig4, vidCaptureHandler4);
// Create our component pipeline.
Fixture.MMALCamera.Camera.VideoPort
.ConnectTo(splitter);
splitter.Outputs[0].ConnectTo(resizer);
splitter.Outputs[1].ConnectTo(resizer2);
splitter.Outputs[2].ConnectTo(resizer3);
splitter.Outputs[3].ConnectTo(resizer4);
Fixture.MMALCamera.Camera.PreviewPort
.ConnectTo(preview);
// Camera warm up time
await Task.Delay(2000);
// Record video for 20 seconds
await Fixture.MMALCamera.ProcessAsync(Fixture.MMALCamera.Camera.VideoPort);
Fixture.CheckAndAssertFilepath(vidCaptureHandler.GetFilepath());
Fixture.CheckAndAssertFilepath(vidCaptureHandler2.GetFilepath());
Fixture.CheckAndAssertFilepath(vidCaptureHandler3.GetFilepath());
Fixture.CheckAndAssertFilepath(vidCaptureHandler4.GetFilepath());
}
}
