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parameters.c
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parameters.c
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#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include <stdarg.h>
#include <stdio.h>
#include <linux/videodev2.h>
#include "base64.h"
#include "parameters.h"
static char errbuf[256];
static void set_error(const char *format, ...) {
va_list args;
va_start(args, format);
vsnprintf(errbuf, 256, format, args);
}
const char *parameters_get_error() {
return errbuf;
}
bool parameters_unserialize(parameters_t *params, const uint8_t *buf, size_t buf_size) {
memset(params, 0, sizeof(parameters_t));
char *copy = malloc(buf_size + 1);
memcpy(copy, buf, buf_size);
copy[buf_size] = 0x00;
char *ptr = copy;
char *entry;
while ((entry = strsep(&ptr, " ")) != NULL) {
char *key = strsep(&entry, ":");
char *val = strsep(&entry, ":");
if (strcmp(key, "LogLevel") == 0) {
params->log_level = base64_decode(val);
} else if (strcmp(key, "CameraID") == 0) {
params->camera_id = atoi(val);
} else if (strcmp(key, "Width") == 0) {
params->width = atoi(val);
} else if (strcmp(key, "Height") == 0) {
params->height = atoi(val);
} else if (strcmp(key, "HFlip") == 0) {
params->h_flip = (strcmp(val, "1") == 0);
} else if (strcmp(key, "VFlip") == 0) {
params->v_flip = (strcmp(val, "1") == 0);
} else if (strcmp(key, "Brightness") == 0) {
params->brightness = atof(val);
} else if (strcmp(key, "Contrast") == 0) {
params->contrast = atof(val);
} else if (strcmp(key, "Saturation") == 0) {
params->saturation = atof(val);
} else if (strcmp(key, "Sharpness") == 0) {
params->sharpness = atof(val);
} else if (strcmp(key, "Exposure") == 0) {
params->exposure = base64_decode(val);
} else if (strcmp(key, "AWB") == 0) {
params->awb = base64_decode(val);
} else if (strcmp(key, "AWBGainRed") == 0) {
params->awb_gain_red = atof(val);
} else if (strcmp(key, "AWBGainBlue") == 0) {
params->awb_gain_blue = atof(val);
} else if (strcmp(key, "Denoise") == 0) {
params->denoise = base64_decode(val);
} else if (strcmp(key, "Shutter") == 0) {
params->shutter = atoi(val);
} else if (strcmp(key, "Metering") == 0) {
params->metering = base64_decode(val);
} else if (strcmp(key, "Gain") == 0) {
params->gain = atof(val);
} else if (strcmp(key, "EV") == 0) {
params->ev = atof(val);
} else if (strcmp(key, "ROI") == 0) {
char *decoded_val = base64_decode(val);
if (strlen(decoded_val) != 0) {
params->roi = malloc(sizeof(window_t));
bool ok = window_load(decoded_val, params->roi);
if (!ok) {
set_error("invalid ROI");
free(decoded_val);
goto failed;
}
}
free(decoded_val);
} else if (strcmp(key, "HDR") == 0) {
params->hdr = (strcmp(val, "1") == 0);
} else if (strcmp(key, "TuningFile") == 0) {
params->tuning_file = base64_decode(val);
} else if (strcmp(key, "Mode") == 0) {
char *decoded_val = base64_decode(val);
if (strlen(decoded_val) != 0) {
params->mode = malloc(sizeof(sensor_mode_t));
bool ok = sensor_mode_load(decoded_val, params->mode);
if (!ok) {
set_error("invalid sensor mode");
free(decoded_val);
goto failed;
}
}
free(decoded_val);
} else if (strcmp(key, "FPS") == 0) {
params->fps = atof(val);
} else if (strcmp(key, "AfMode") == 0) {
params->af_mode = base64_decode(val);
} else if (strcmp(key, "AfRange") == 0) {
params->af_range = base64_decode(val);
} else if (strcmp(key, "AfSpeed") == 0) {
params->af_speed = base64_decode(val);
} else if (strcmp(key, "LensPosition") == 0) {
params->lens_position = atof(val);
} else if (strcmp(key, "AfWindow") == 0) {
char *decoded_val = base64_decode(val);
if (strlen(decoded_val) != 0) {
params->af_window = malloc(sizeof(window_t));
bool ok = window_load(decoded_val, params->af_window);
if (!ok) {
set_error("invalid AfWindow");
free(decoded_val);
goto failed;
}
}
free(decoded_val);
} else if (strcmp(key, "FlickerPeriod") == 0) {
params->flicker_period = atoi(val);
} else if (strcmp(key, "TextOverlayEnable") == 0) {
params->text_overlay_enable = (strcmp(val, "1") == 0);
} else if (strcmp(key, "TextOverlay") == 0) {
params->text_overlay = base64_decode(val);
} else if (strcmp(key, "Codec") == 0) {
params->codec = base64_decode(val);
} else if (strcmp(key, "IDRPeriod") == 0) {
params->idr_period = atoi(val);
} else if (strcmp(key, "Bitrate") == 0) {
params->bitrate = atoi(val);
} else if (strcmp(key, "Profile") == 0) {
char *decoded_val = base64_decode(val);
if (strcmp(decoded_val, "baseline") == 0) {
params->profile = V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE;
} else if (strcmp(decoded_val, "main") == 0) {
params->profile = V4L2_MPEG_VIDEO_H264_PROFILE_MAIN;
} else {
params->profile = V4L2_MPEG_VIDEO_H264_PROFILE_HIGH;
}
free(decoded_val);
} else if (strcmp(key, "Level") == 0) {
char *decoded_val = base64_decode(val);
if (strcmp(decoded_val, "4.0") == 0) {
params->level = V4L2_MPEG_VIDEO_H264_LEVEL_4_0;
} else if (strcmp(decoded_val, "4.1") == 0) {
params->level = V4L2_MPEG_VIDEO_H264_LEVEL_4_1;
} else {
params->level = V4L2_MPEG_VIDEO_H264_LEVEL_4_2;
}
free(decoded_val);
}
}
free(copy);
params->buffer_count = 6;
params->capture_buffer_count = params->buffer_count * 2;
return true;
failed:
free(copy);
parameters_destroy(params);
return false;
}
void parameters_destroy(parameters_t *params) {
if (params->exposure != NULL) {
free(params->exposure);
}
if (params->awb != NULL) {
free(params->awb);
}
if (params->denoise != NULL) {
free(params->denoise);
}
if (params->metering != NULL) {
free(params->metering);
}
if (params->roi != NULL) {
free(params->roi);
}
if (params->tuning_file != NULL) {
free(params->tuning_file);
}
if (params->mode != NULL) {
free(params->mode);
}
if (params->af_mode != NULL) {
free(params->af_mode);
}
if (params->af_range != NULL) {
free(params->af_range);
}
if (params->af_speed != NULL) {
free(params->af_speed);
}
if (params->af_window != NULL) {
free(params->af_window);
}
if (params->text_overlay != NULL) {
free(params->text_overlay);
}
if (params->codec != NULL) {
free(params->codec);
}
}