private void SetupAVCapture(NSString sessionPreset)
{
if ((this.VideoTextureCache = CVOpenGLESTextureCache.FromEAGLContext(this.context)) == null)
{
Console.WriteLine("Could not create the CoreVideo TextureCache");
return;
}
this.session = new AVCaptureSession();
this.session.BeginConfiguration();
// Preset size
this.session.SessionPreset = sessionPreset;
// Input device
var videoDevice = AVCaptureDevice.GetDefaultDevice(AVMediaType.Video);
if (videoDevice == null)
{
Console.WriteLine("No video device");
return;
}
var input = new AVCaptureDeviceInput(videoDevice, out NSError error);
if (error != null)
{
Console.WriteLine("Error creating video capture device");
return;
}
this.session.AddInput(input);
// Create the output device
using (var dataOutput = new AVCaptureVideoDataOutput())
{
dataOutput.AlwaysDiscardsLateVideoFrames = true;
// YUV 420, use "BiPlanar" to split the Y and UV planes in two separate blocks of
// memory, then we can index 0 to get the Y and 1 for the UV planes in the frame decoding
//VideoSettings = new AVVideoSettings (CVPixelFormatType.CV420YpCbCr8BiPlanarFullRange)
this.dataOutputDelegate = new DataOutputDelegate(this);
//
// This dispatches the video frames into the main thread, because the OpenGL
// code is accessing the data synchronously.
//
dataOutput.SetSampleBufferDelegateQueue(this.dataOutputDelegate, DispatchQueue.MainQueue);
this.session.AddOutput(dataOutput);
}
this.session.CommitConfiguration();
this.session.StartRunning();
}
void SetupAVCapture (NSString sessionPreset)
{
if ((videoTextureCache = CVOpenGLESTextureCache.FromEAGLContext (context)) == null){
Console.WriteLine ("Could not create the CoreVideo TextureCache");
return;
}
session = new AVCaptureSession ();
session.BeginConfiguration ();
// Preset size
session.SessionPreset = sessionPreset;
// Input device
var videoDevice = AVCaptureDevice.DefaultDeviceWithMediaType (AVMediaType.Video);
if (videoDevice == null){
Console.WriteLine ("No video device");
return;
}
NSError err;
var input = new AVCaptureDeviceInput (videoDevice, out err);
if (err != null){
Console.WriteLine ("Error creating video capture device");
return;
}
session.AddInput (input);
// Create the output device
var dataOutput = new AVCaptureVideoDataOutput () {
AlwaysDiscardsLateVideoFrames = true,
// YUV 420, use "BiPlanar" to split the Y and UV planes in two separate blocks of
// memory, then we can index 0 to get the Y and 1 for the UV planes in the frame decoding
VideoSettings = new AVVideoSettings (CVPixelFormatType.CV420YpCbCr8BiPlanarFullRange)
};
dataOutputDelegate = new DataOutputDelegate (this);
//
// This dispatches the video frames into the main thread, because the OpenGL
// code is accessing the data synchronously.
//
dataOutput.SetSampleBufferDelegateAndQueue (dataOutputDelegate, DispatchQueue.MainQueue);
session.AddOutput (dataOutput);
session.CommitConfiguration ();
session.StartRunning ();
}
