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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2018, Google Inc.
*
* device_enumerator.h - API to enumerate and find media devices
*/
#ifndef __LIBCAMERA_DEVICE_ENUMERATOR_H__
#define __LIBCAMERA_DEVICE_ENUMERATOR_H__
#include <memory>
#include <string>
#include <vector>
#include <linux/media.h>
namespace libcamera {
class MediaDevice;
class DeviceMatch
{
public:
DeviceMatch(const std::string &driver);
void add(const std::string &entity);
bool match(const MediaDevice *device) const;
private:
std::string driver_;
std::vector<std::string> entities_;
};
class DeviceEnumerator
{
public:
static std::unique_ptr<DeviceEnumerator> create();
virtual ~DeviceEnumerator();
virtual int init() = 0;
virtual int enumerate() = 0;
std::shared_ptr<MediaDevice> search(const DeviceMatch &dm);
protected:
std::shared_ptr<MediaDevice> createDevice(const std::string &deviceNode);
void addDevice(const std::shared_ptr<MediaDevice> &media);
void removeDevice(const std::string &deviceNode);
private:
std::vector<std::shared_ptr<MediaDevice>> devices_;
};
} /* namespace libcamera */
#endif /* __LIBCAMERA_DEVICE_ENUMERATOR_H__ */
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