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/*=========================================================================
*
* Copyright NumFOCUS
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef itkVideoIOFactory_h
#define itkVideoIOFactory_h
#include "itkObject.h"
#include "itkVideoIOBase.h"
#include "ITKVideoIOExport.h"
namespace itk
{
/** \class VideoIOFactoryEnums
* \brief Contains all enum classes used by VideoIOFactory class
* \ingroup ITKVideoIO
*/
class VideoIOFactoryEnums
{
public:
/**
* \class IOModeEnum
* \ingroup ITKVideoIO
* Mode in which the VideoIO is intended to be used */
enum class IOMode : uint8_t
{
ReadFileMode,
ReadCameraMode,
WriteMode
};
};
// Define how to print enumeration
extern ITKVideoIO_EXPORT std::ostream &
operator<<(std::ostream & out, const VideoIOFactoryEnums::IOMode value);
/**
* \class VideoIOFactory
* \brief Create instances of VideoIO objects using an object factory.
*
* This class will create a VideoIO instance that can read/write to/from the
* desired file or camera. In order for a specific VideoIO type to be
* considered, it must be registered with the ITK ObjectFactoryBase.
*
* \ingroup ITKVideoIO
*/
class ITKVideoIO_EXPORT VideoIOFactory : public Object
{
public:
ITK_DISALLOW_COPY_AND_MOVE(VideoIOFactory);
/** Standard class type aliases. */
using Self = VideoIOFactory;
using Superclass = Object;
using Pointer = SmartPointer<Self>;
using ConstPointer = SmartPointer<const Self>;
using IOModeEnum = VideoIOFactoryEnums::IOMode;
#if !defined(ITK_LEGACY_REMOVE)
// We need to expose the enum values at the class level
// for backwards compatibility
static constexpr IOModeEnum ReadFileMode = IOModeEnum::ReadFileMode;
static constexpr IOModeEnum ReadCameraMode = IOModeEnum::ReadCameraMode;
static constexpr IOModeEnum WriteMode = IOModeEnum::WriteMode;
#endif
/** Runtime type information (and related methods). **/
itkOverrideGetNameOfClassMacro(VideoIOFactory);
/** Create the appropriate ImageIO depending on the particulars of the file.
* Note: arg can either be a path for reading/writing from/to a file or a
* a string containing an integer to use for a cameraID if reading
* from a camera
*/
static VideoIOBase::Pointer
CreateVideoIO(IOModeEnum mode, const char * arg);
protected:
VideoIOFactory();
~VideoIOFactory() override;
};
} // end namespace itk
#endif
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