/// <summary>
/// Opens a <seealso cref="com.samsung.android.sdk.camera.SCameraDevice"/>.
/// </summary>
private void openCamera()
{
try
{
if (!mCameraOpenCloseLock.tryAcquire(3000, TimeUnit.MILLISECONDS))
{
showAlertDialog("Time out waiting to lock camera opening.", true);
}
mSCameraManager = mSCamera.SCameraManager;
SCameraCharacteristics characteristics = mSCameraManager.getCameraCharacteristics(mCameraId);
StreamConfigurationMap streamConfigurationMap = characteristics.get(SCameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
// Acquires supported preview size list that supports YUV420_888.
// Input Surface from panorama processor will have a format of ImageFormat.YUV420_888
mPreviewSize = streamConfigurationMap.getOutputSizes(ImageFormat.YUV_420_888)[0];
foreach (Size option in streamConfigurationMap.getOutputSizes(ImageFormat.YUV_420_888))
{
// preview size must be supported by panorama processor
if (!contains(mProcessor.Parameters.get(SCameraPanoramaProcessor.STREAM_SIZE_LIST), option))
{
continue;
}
int areaCurrent = Math.Abs((mPreviewSize.Width * mPreviewSize.Height) - (MAX_PREVIEW_WIDTH * MAX_PREVIEW_HEIGHT));
int areaNext = Math.Abs((option.Width * option.Height) - (MAX_PREVIEW_WIDTH * MAX_PREVIEW_HEIGHT));
if (areaCurrent > areaNext)
{
mPreviewSize = option;
}
}
int orientation = Resources.Configuration.orientation;
if (Configuration.ORIENTATION_LANDSCAPE == orientation)
{
mTextureView.setAspectRatio(mPreviewSize.Width, mPreviewSize.Height);
}
else
{
mTextureView.setAspectRatio(mPreviewSize.Height, mPreviewSize.Width);
}
initProcessor();
mSCameraManager.openCamera(mCameraId, new StateCallbackAnonymousInnerClassHelper(this), mBackgroundHandler);
}
catch (CameraAccessException e)
{
showAlertDialog("Cannot open the camera.", true);
Log.e(TAG, "Cannot open the camera.", e);
}
catch (InterruptedException e)
{
throw new Exception("Interrupted while trying to lock camera opening.", e);
}
}
private void openCamera()
{
lock (this)
{
try
{
if (!mCameraOpenCloseLock.tryAcquire(3000, TimeUnit.MILLISECONDS))
{
showAlertDialog("Time out waiting to lock camera opening.", true);
}
// acquires camera characteristics
mCharacteristics = mSCameraManager.getCameraCharacteristics(mSCameraManager.CameraIdList[0]);
StreamConfigurationMap streamConfigurationMap = mCharacteristics.get(SCameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
// Acquires supported preview size list that supports SurfaceTexture
mPreviewSize = streamConfigurationMap.getOutputSizes(typeof(SurfaceTexture))[0];
foreach (Size option in streamConfigurationMap.getOutputSizes(typeof(SurfaceTexture)))
{
// Find maximum preview size that is not larger than MAX_PREVIEW_WIDTH/MAX_PREVIEW_HEIGHT
int areaCurrent = Math.Abs((mPreviewSize.Width * mPreviewSize.Height) - (MAX_PREVIEW_WIDTH * MAX_PREVIEW_HEIGHT));
int areaNext = Math.Abs((option.Width * option.Height) - (MAX_PREVIEW_WIDTH * MAX_PREVIEW_HEIGHT));
if (areaCurrent > areaNext)
{
mPreviewSize = option;
}
}
// Acquires supported input size for YUV_420_888 format.
Size yuvSize = streamConfigurationMap.getInputSizes(ImageFormat.YUV_420_888)[0];
// Configures an ImageReader
mYUVReader = ImageReader.newInstance(yuvSize.Width, yuvSize.Height, ImageFormat.YUV_420_888, 2);
mJpegReader = ImageReader.newInstance(mYUVReader.Width, mYUVReader.Height, ImageFormat.JPEG, 2);
mYUVReader.setOnImageAvailableListener(mYUVImageListener, mReaderHandler);
mJpegReader.setOnImageAvailableListener(mJpegImageListener, mReaderHandler);
// Set the aspect ratio to TextureView
int orientation = Resources.Configuration.orientation;
if (orientation == Configuration.ORIENTATION_LANDSCAPE)
{
mTextureView.setAspectRatio(mPreviewSize.Width, mPreviewSize.Height);
}
else
{
mTextureView.setAspectRatio(mPreviewSize.Height, mPreviewSize.Width);
}
// Opening the camera device here
mSCameraManager.openCamera(mCameraId, new StateCallbackAnonymousInnerClassHelper(this), mBackgroundHandler);
}
catch (CameraAccessException e)
{
showAlertDialog("Cannot open the camera.", true);
Log.e(TAG, "Cannot open the camera.", e);
}
catch (InterruptedException e)
{
throw new Exception("Interrupted while trying to lock camera opening.", e);
}
}
}