bool AddImageSamplerOutput(out string errorMessage, int minimumSampleIntervalInMilliSeconds)
{
errorMessage = string.Empty;
// create a VideoDataOutput and add it to the capture session
frameGrabberOutput = new AVCaptureVideoDataOutput();
frameGrabberOutput.WeakVideoSettings = new CVPixelBufferAttributes {
PixelFormatType = CVPixelFormatType.CV32BGRA
}.Dictionary;
// set up the output queue and delegate
queue = new DispatchQueue("captureQueue");
videoFrameSampler = new VideoFrameSamplerDelegate();
frameGrabberOutput.SetSampleBufferDelegateQueue(videoFrameSampler, queue);
// subscribe to from capture events
videoFrameSampler.CaptureError += HandleImageCaptureError;
videoFrameSampler.ImageCaptured += HandleImageCaptured;
// add the output to the session
session.AddOutput(frameGrabberOutput);
// set minimum time interval between image samples (if possible).
try {
AVCaptureConnection connection = frameGrabberOutput.Connections[0];
connection.VideoMinFrameDuration = new CMTime(minimumSampleIntervalInMilliSeconds, 1000);
} catch (Exception ex) {
Console.WriteLine(ex.Message);
}
return(true);
}
private bool addImageSamplerOutput(out string errorMessage, int minimumSampleIntervalInMilliSeconds)
{
errorMessage = "";
// create a VideoDataOutput and add it to the capture session
frameGrabberOutput = new AVCaptureVideoDataOutput();
frameGrabberOutput.VideoSettings = new AVVideoSettings(CVPixelFormatType.CV32BGRA);
// set up the output queue and delegate
queue = new MonoTouch.CoreFoundation.DispatchQueue("captureQueue");
videoFrameSampler = new VideoFrameSamplerDelegate();
frameGrabberOutput.SetSampleBufferDelegateAndQueue(videoFrameSampler, queue);
// subscribe to from capture events
videoFrameSampler.CaptureError += new EventHandler <CaptureErrorEventArgs>(handleImageCaptureError);
videoFrameSampler.ImageCaptured += new EventHandler <ImageCaptureEventArgs>(handleImageCaptured);
// add the output to the session
session.AddOutput(frameGrabberOutput);
// set minimum time interval between image samples (if possible).
try
{
AVCaptureConnection connection = (AVCaptureConnection)frameGrabberOutput.Connections[0];
connection.VideoMinFrameDuration = new CMTime(minimumSampleIntervalInMilliSeconds, 1000);
}
catch
{
}
return(true);
}
private bool addImageSamplerOutput( out string errorMessage, int minimumSampleIntervalInMilliSeconds )
{
errorMessage = "";
// create a VideoDataOutput and add it to the capture session
frameGrabberOutput = new AVCaptureVideoDataOutput();
frameGrabberOutput.WeakVideoSettings = new CVPixelBufferAttributes () { PixelFormatType = CVPixelFormatType.CV32BGRA }.Dictionary;
// set up the output queue and delegate
queue = new CoreFoundation.DispatchQueue ("captureQueue");
videoFrameSampler = new VideoFrameSamplerDelegate();
frameGrabberOutput.SetSampleBufferDelegateQueue (videoFrameSampler, queue);
// subscribe to from capture events
videoFrameSampler.CaptureError += new EventHandler<CaptureErrorEventArgs>( handleImageCaptureError );
videoFrameSampler.ImageCaptured += new EventHandler<ImageCaptureEventArgs>( handleImageCaptured );
// add the output to the session
session.AddOutput (frameGrabberOutput);
// set minimum time interval between image samples (if possible).
try
{
AVCaptureConnection connection = (AVCaptureConnection)frameGrabberOutput.Connections[0];
connection.VideoMinFrameDuration = new CMTime(minimumSampleIntervalInMilliSeconds, 1000);
}
catch
{
}
return true;
}
bool AddImageSamplerOutput( out string errorMessage, int minimumSampleIntervalInMilliSeconds )
{
errorMessage = string.Empty;
// create a VideoDataOutput and add it to the capture session
frameGrabberOutput = new AVCaptureVideoDataOutput();
frameGrabberOutput.WeakVideoSettings = new CVPixelBufferAttributes { PixelFormatType = CVPixelFormatType.CV32BGRA }.Dictionary;
// set up the output queue and delegate
queue = new DispatchQueue ("captureQueue");
videoFrameSampler = new VideoFrameSamplerDelegate();
frameGrabberOutput.SetSampleBufferDelegateQueue (videoFrameSampler, queue);
// subscribe to from capture events
videoFrameSampler.CaptureError += HandleImageCaptureError;
videoFrameSampler.ImageCaptured += HandleImageCaptured;
// add the output to the session
session.AddOutput (frameGrabberOutput);
// set minimum time interval between image samples (if possible).
try {
AVCaptureConnection connection = frameGrabberOutput.Connections[0];
connection.VideoMinFrameDuration = new CMTime(minimumSampleIntervalInMilliSeconds, 1000);
} catch (Exception ex) {
Console.WriteLine (ex.Message);
}
return true;
}
