#include <stdlib.h>
#include <string.h>

#include <linux/videodev2.h>

#include "parameters.h"

void parameters_load(parameters_t *params) {
    params->camera_id = atoi(getenv("CAMERA_ID"));
    params->width = atoi(getenv("WIDTH"));
    params->height = atoi(getenv("HEIGHT"));
    params->fps = atoi(getenv("FPS"));
    params->idr_period = atoi(getenv("IDR_PERIOD"));
    params->bitrate = atoi(getenv("BITRATE"));

    const char *profile = getenv("PROFILE");
    if (strcmp(profile, "baseline") == 0) {
        params->profile = V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE;
    } else if (strcmp(profile, "main") == 0) {
        params->profile = V4L2_MPEG_VIDEO_H264_PROFILE_MAIN;
    } else {
        params->profile = V4L2_MPEG_VIDEO_H264_PROFILE_HIGH;
    }

    const char *level = getenv("LEVEL");
    if (strcmp(level, "4.0") == 0) {
        params->level = V4L2_MPEG_VIDEO_H264_LEVEL_4_0;
    } else if (strcmp(level, "4.1") == 0) {
        params->level = V4L2_MPEG_VIDEO_H264_LEVEL_4_1;
    } else {
        params->level = V4L2_MPEG_VIDEO_H264_LEVEL_4_2;
    }

    params->buffer_count = 3;
    params->capture_buffer_count = params->buffer_count * 2;
}