//Start the camera preview
public void startPreview()
{
if (null == cameraDevice || !textureView.IsAvailable || null == previewSize)
{
return;
}
try
{
closePreviewSession();
SurfaceTexture texture = textureView.SurfaceTexture;
//Assert.IsNotNull(texture);
texture.SetDefaultBufferSize(previewSize.Width, previewSize.Height);
previewBuilder = cameraDevice.CreateCaptureRequest(CameraTemplate.Record);
surfaces = new List <Surface>();
var previewSurface = new Surface(texture);
surfaces.Add(previewSurface);
previewBuilder.AddTarget(previewSurface);
if (previewBuilder != null)
{
if (flashon)
{
previewBuilder.Set(CaptureRequest.FlashMode, (int)FlashMode.Torch);
}
Rect sensor_rect = max;
int left = sensor_rect.Width() / 2;
int right = left;
int top = sensor_rect.Height() / 2;
int bottom = top;
int hwidth = (int)(sensor_rect.Width() / (2.0 * zoomlev));
int hheight = (int)(sensor_rect.Height() / (2.0 * zoomlev));
left -= hwidth;
right += hwidth;
top -= hheight;
bottom += hheight;
previewBuilder.Set(CaptureRequest.ScalerCropRegion, new Rect(left, top, right, bottom));
}
previewBuilder.Set(CaptureRequest.ControlAfMode, (int)ControlAFMode.Off);
previewBuilder.Set(CaptureRequest.ControlAfTrigger, (int)ControlAFTrigger.Cancel);
//var recorderSurface = mediaRecorder.Surface;
//surfaces.Add(recorderSurface);
//previewBuilder.AddTarget(recorderSurface);
mPreviewSession = new PreviewCaptureStateCallback(this, false);
cameraDevice.CreateCaptureSession(surfaces, mPreviewSession, backgroundHandler);
}
catch (CameraAccessException e)
{
e.PrintStackTrace();
}
catch (IOException e)
{
e.PrintStackTrace();
}
}
private void StartRecordingVideo()
{
try
{
closePreviewSession();
SetUpMediaRecorder();
SurfaceTexture texture = textureView.SurfaceTexture;
//Assert.IsNotNull(texture);
//texture.SetDefaultBufferSize(previewSize.Width, previewSize.Height);
previewBuilder = cameraDevice.CreateCaptureRequest(CameraTemplate.Record);
var surfaces = new List <Surface>();
var previewSurface = new Surface(texture);
surfaces.Add(previewSurface);
previewBuilder.AddTarget(previewSurface);
if (flashon)
{
previewBuilder.Set(CaptureRequest.FlashMode, (int)FlashMode.Torch);
}
Rect sensor_rect = max;
int left = sensor_rect.Width() / 2;
int right = left;
int top = sensor_rect.Height() / 2;
int bottom = top;
int hwidth = (int)(sensor_rect.Width() / (2.0 * zoomlev));
int hheight = (int)(sensor_rect.Height() / (2.0 * zoomlev));
left -= hwidth;
right += hwidth;
top -= hheight;
bottom += hheight;
previewBuilder.Set(CaptureRequest.ScalerCropRegion, new Rect(left, top, right, bottom));
var recorderSurface = mediaRecorder.Surface;
surfaces.Add(recorderSurface);
previewBuilder.AddTarget(recorderSurface);
mPreviewSession = new PreviewCaptureStateCallback(this, true);
cameraDevice.CreateCaptureSession(surfaces, mPreviewSession, backgroundHandler);
}
catch (IllegalStateException e)
{
e.PrintStackTrace();
}
}
