/*
 * Copyright (c) 2016-2023, 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
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <iostream>
#include <cstdlib>
#include <cstring>
#include <linux/v4l2-controls.h>
#include "video_encode.h"

#define CHECK_OPTION_VALUE(argp) if(!*argp || (*argp)[0] == '-') \
                                { \
                                    cerr << "Error: value not specified for option " << arg << endl; \
                                    goto error; \
                                }

#define CSV_PARSE_CHECK_ERROR(condition, str) \
    if (condition) {\
    cerr << "Error: " << str << endl; \
    goto error; \
    }

using namespace std;


static uint32_t
get_encoder_type(char *arg)
{
    if (!strcmp(arg, "H264"))
        return V4L2_PIX_FMT_H264;
    if (!strcmp(arg, "H265"))
        return V4L2_PIX_FMT_H265;
    if (!strcmp(arg, "VP8"))
        printf("VP8");
        return V4L2_PIX_FMT_VP8;
    if (!strcmp(arg, "VP9"))
        return V4L2_PIX_FMT_VP9;
    if (!strcmp(arg, "AV1"))
        return V4L2_PIX_FMT_AV1;
    return 0;
}

static int32_t
get_encoder_ratecontrol(char *arg)
{
    if (!strcmp(arg, "cbr"))
        return V4L2_MPEG_VIDEO_BITRATE_MODE_CBR;

    if (!strcmp(arg, "vbr"))
        return V4L2_MPEG_VIDEO_BITRATE_MODE_VBR;

    return -1;
}

static int32_t
get_encoder_profile_h264(char *arg)
{
    if (!strcmp(arg, "baseline"))
        return V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE;

    if (!strcmp(arg, "main"))
        return V4L2_MPEG_VIDEO_H264_PROFILE_MAIN;

    if (!strcmp(arg, "high"))
        return V4L2_MPEG_VIDEO_H264_PROFILE_HIGH;

    if (!strcmp(arg, "high444"))
        return V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_444_PREDICTIVE;
    return -1;
}

static int32_t
get_encoder_profile_h265(char *arg)
{
    if (!strcmp(arg, "main"))
        return V4L2_MPEG_VIDEO_H265_PROFILE_MAIN;

    if (!strcmp(arg, "main10"))
        return V4L2_MPEG_VIDEO_H265_PROFILE_MAIN10;

    return -1;
}

static int32_t
get_h264_encoder_level(char *arg)
{
    if (!strcmp(arg, "1.0"))
        return V4L2_MPEG_VIDEO_H264_LEVEL_1_0;

    if (!strcmp(arg, "1b"))
        return V4L2_MPEG_VIDEO_H264_LEVEL_1B;

    if (!strcmp(arg, "1.1"))
        return V4L2_MPEG_VIDEO_H264_LEVEL_1_1;

    if (!strcmp(arg, "1.2"))
        return V4L2_MPEG_VIDEO_H264_LEVEL_1_2;

    if (!strcmp(arg, "1.3"))
        return V4L2_MPEG_VIDEO_H264_LEVEL_1_3;

    if (!strcmp(arg, "2.0"))
        return V4L2_MPEG_VIDEO_H264_LEVEL_2_0;

    if (!strcmp(arg, "2.1"))
        return V4L2_MPEG_VIDEO_H264_LEVEL_2_1;

    if (!strcmp(arg, "2.2"))
        return V4L2_MPEG_VIDEO_H264_LEVEL_2_2;

    if (!strcmp(arg, "3.0"))
        return V4L2_MPEG_VIDEO_H264_LEVEL_3_0;

    if (!strcmp(arg, "3.1"))
        return V4L2_MPEG_VIDEO_H264_LEVEL_3_1;

    if (!strcmp(arg, "3.2"))
        return V4L2_MPEG_VIDEO_H264_LEVEL_3_2;

    if (!strcmp(arg, "4.0"))
        return V4L2_MPEG_VIDEO_H264_LEVEL_4_0;

    if (!strcmp(arg, "4.1"))
        return V4L2_MPEG_VIDEO_H264_LEVEL_4_1;

    if (!strcmp(arg, "4.2"))
        return V4L2_MPEG_VIDEO_H264_LEVEL_4_2;

    if (!strcmp(arg, "5.0"))
        return V4L2_MPEG_VIDEO_H264_LEVEL_5_0;

    if (!strcmp(arg, "5.1"))
        return V4L2_MPEG_VIDEO_H264_LEVEL_5_1;

    return -1;
}

static int32_t
get_h265_encoder_level(char *arg)
{
    if (!strcmp(arg, "main1.0"))
        return V4L2_MPEG_VIDEO_H265_LEVEL_1_0_MAIN_TIER;

    if (!strcmp(arg, "high1.0"))
        return V4L2_MPEG_VIDEO_H265_LEVEL_1_0_HIGH_TIER;

    if (!strcmp(arg, "main2.0"))
        return V4L2_MPEG_VIDEO_H265_LEVEL_2_0_MAIN_TIER;

    if (!strcmp(arg, "high2.0"))
        return V4L2_MPEG_VIDEO_H265_LEVEL_2_0_HIGH_TIER;

    if (!strcmp(arg, "main2.1"))
        return V4L2_MPEG_VIDEO_H265_LEVEL_2_1_MAIN_TIER;

    if (!strcmp(arg, "high2.1"))
        return V4L2_MPEG_VIDEO_H265_LEVEL_2_1_HIGH_TIER;

    if (!strcmp(arg, "main3.0"))
        return V4L2_MPEG_VIDEO_H265_LEVEL_3_0_MAIN_TIER;

    if (!strcmp(arg, "high3.0"))
        return V4L2_MPEG_VIDEO_H265_LEVEL_3_0_HIGH_TIER;

    if (!strcmp(arg, "main3.1"))
        return V4L2_MPEG_VIDEO_H265_LEVEL_3_1_MAIN_TIER;

    if (!strcmp(arg, "high3.1"))
        return V4L2_MPEG_VIDEO_H265_LEVEL_3_1_HIGH_TIER;

    if (!strcmp(arg, "main4.0"))
        return V4L2_MPEG_VIDEO_H265_LEVEL_4_0_MAIN_TIER;

    if (!strcmp(arg, "high4.0"))
        return V4L2_MPEG_VIDEO_H265_LEVEL_4_0_HIGH_TIER;

    if (!strcmp(arg, "main4.1"))
        return V4L2_MPEG_VIDEO_H265_LEVEL_4_1_MAIN_TIER;

    if (!strcmp(arg, "high4.1"))
        return V4L2_MPEG_VIDEO_H265_LEVEL_4_1_HIGH_TIER;

    if (!strcmp(arg, "main5.0"))
        return V4L2_MPEG_VIDEO_H265_LEVEL_5_0_MAIN_TIER;

    if (!strcmp(arg, "high5.0"))
        return V4L2_MPEG_VIDEO_H265_LEVEL_5_0_HIGH_TIER;

    if (!strcmp(arg, "main5.1"))
        return V4L2_MPEG_VIDEO_H265_LEVEL_5_1_MAIN_TIER;

    if (!strcmp(arg, "high5.1"))
        return V4L2_MPEG_VIDEO_H265_LEVEL_5_1_HIGH_TIER;

    if (!strcmp(arg, "main5.2"))
        return V4L2_MPEG_VIDEO_H265_LEVEL_5_2_MAIN_TIER;

    if (!strcmp(arg, "high5.2"))
        return V4L2_MPEG_VIDEO_H265_LEVEL_5_2_HIGH_TIER;

    if (!strcmp(arg, "main6.0"))
        return V4L2_MPEG_VIDEO_H265_LEVEL_6_0_MAIN_TIER;

    if (!strcmp(arg, "high6.0"))
        return V4L2_MPEG_VIDEO_H265_LEVEL_6_0_HIGH_TIER;

    if (!strcmp(arg, "main6.1"))
        return V4L2_MPEG_VIDEO_H265_LEVEL_6_1_MAIN_TIER;

    if (!strcmp(arg, "high6.1"))
        return V4L2_MPEG_VIDEO_H265_LEVEL_6_1_HIGH_TIER;

    if (!strcmp(arg, "main6.2"))
        return V4L2_MPEG_VIDEO_H265_LEVEL_6_2_MAIN_TIER;

    if (!strcmp(arg, "high6.2"))
        return V4L2_MPEG_VIDEO_H265_LEVEL_6_2_HIGH_TIER;

    return -1;
}

static int32_t
get_dbg_level(char *arg)
{
    int32_t log_level = atoi(arg);

    if (log_level < 0)
    {
        cout << "Warning: invalid log level input, defaulting to setting 0" << endl;
        return 0;
    }

    if (log_level > 3)
    {
        cout << "Warning: invalid log level input, defaulting to setting 3" << endl;
        return 3;
    }

    return log_level;
}