NvV4l2Element.h

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/*
 * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *  * Neither the name of NVIDIA CORPORATION nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
#ifndef __NV_V4L2_ELEMENT_H__
#define __NV_V4L2_ELEMENT_H__
 
#include "NvElement.h"
#include "NvV4l2ElementPlane.h"
 
#include "v4l2_nv_extensions.h"
 
class NvV4l2Element:public NvElement
{
public:
    virtual ~NvV4l2Element();
 
    int subscribeEvent(uint32_t type, uint32_t id, uint32_t flags);
    int dqEvent(struct v4l2_event &event, uint32_t max_wait_ms);
 
    int setControl(uint32_t id, int32_t value);
    int getControl(uint32_t id, int32_t &value);
 
    int setExtControls(struct v4l2_ext_controls &ctl);
    int getExtControls(struct v4l2_ext_controls &ctl);
 
    virtual int isInError();
 
    NvV4l2ElementPlane output_plane;  
    NvV4l2ElementPlane capture_plane; 
    int abort();
 
    virtual int waitForIdle(uint32_t max_wait_ms);
 
    void *app_data; 
    void enableProfiling();
 
protected:
    int fd;         
    uint32_t output_plane_pixfmt;  
    uint32_t capture_plane_pixfmt; 
    NvV4l2Element(const char *comp_name, const char *dev_node, int flags, NvElementProfiler::ProfilerField fields);
};
#endif