v4l2_request.h

Go to the documentation of this file.

/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2025, Ideas On Board
 *
 * V4L2 Request
 */
 
#pragma once
 
#include <string>
 
#include <linux/videodev2.h>
 
#include <libcamera/base/event_notifier.h>
#include <libcamera/base/log.h>
#include <libcamera/base/signal.h>
#include <libcamera/base/unique_fd.h>
 
namespace libcamera {
 
class V4L2Request : protected Loggable
{
public:
    bool isValid() const { return fd_.isValid(); }
    int fd() const { return fd_.get(); }
 
    int reinit();
    int queue();
 
    V4L2Request(UniqueFD &&fd);
 
    Signal<V4L2Request *> requestDone;
 
private:
    LIBCAMERA_DISABLE_COPY_AND_MOVE(V4L2Request)
 
    void requestReady();
    std::string logPrefix() const override;
 
    UniqueFD fd_;
    EventNotifier fdNotifier_;
};
 
} /* namespace libcamera */