尝试在 ESP32CAM CameraWebServer 示例代码上添加功能
Trying to add functions on ESP32CAM CameraWebServer Example Code
我正在尝试控制 ESP32CAM 的 I/O 引脚并从摄像头获取视图。
为此，我尝试像这样编辑 CameraWebServer 示例：
#include "esp_camera.h"
#include <WiFi.h>
//
// WARNING!!! PSRAM IC required for UXGA resolution and high JPEG quality
// Ensure ESP32 Wrover Module or other board with PSRAM is selected
// Partial images will be transmitted if image exceeds buffer size
//
// Select camera model
//#define CAMERA_MODEL_WROVER_KIT // Has PSRAM
//#define CAMERA_MODEL_ESP_EYE // Has PSRAM
//#define CAMERA_MODEL_M5STACK_PSRAM // Has PSRAM
//#define CAMERA_MODEL_M5STACK_V2_PSRAM // M5Camera version B Has PSRAM
//#define CAMERA_MODEL_M5STACK_WIDE // Has PSRAM
//#define CAMERA_MODEL_M5STACK_ESP32CAM // No PSRAM
#define CAMERA_MODEL_AI_THINKER // Has PSRAM
//#define CAMERA_MODEL_TTGO_T_JOURNAL // No PSRAM
#include "camera_pins.h"
WiFiServer espServer(81);
String request;
const char* ssid = "VODAFONE_9D53";
const char* password = "fc1f1fff";
void startCameraServer();
void setup() {
Serial.begin(115200);
Serial.setDebugOutput(true);
Serial.println();
pinMode(12, OUTPUT);
pinMode(13, OUTPUT);
digitalWrite(4, LOW);
camera_config_t config;
config.ledc_channel = LEDC_CHANNEL_0;
config.ledc_timer = LEDC_TIMER_0;
config.pin_d0 = Y2_GPIO_NUM;
config.pin_d1 = Y3_GPIO_NUM;
config.pin_d2 = Y4_GPIO_NUM;
config.pin_d3 = Y5_GPIO_NUM;
config.pin_d4 = Y6_GPIO_NUM;
config.pin_d5 = Y7_GPIO_NUM;
config.pin_d6 = Y8_GPIO_NUM;
config.pin_d7 = Y9_GPIO_NUM;
config.pin_xclk = XCLK_GPIO_NUM;
config.pin_pclk = PCLK_GPIO_NUM;
config.pin_vsync = VSYNC_GPIO_NUM;
config.pin_href = HREF_GPIO_NUM;
config.pin_sscb_sda = SIOD_GPIO_NUM;
config.pin_sscb_scl = SIOC_GPIO_NUM;
config.pin_pwdn = PWDN_GPIO_NUM;
config.pin_reset = RESET_GPIO_NUM;
config.xclk_freq_hz = 20000000;
config.pixel_format = PIXFORMAT_JPEG;
// if PSRAM IC present, init with UXGA resolution and higher JPEG quality
// for larger pre-allocated frame buffer.
if(psramFound()){
config.frame_size = FRAMESIZE_UXGA;
config.jpeg_quality = 10;
config.fb_count = 2;
} else {
config.frame_size = FRAMESIZE_SVGA;
config.jpeg_quality = 12;
config.fb_count = 1;
}
#if defined(CAMERA_MODEL_ESP_EYE)
pinMode(13, INPUT_PULLUP);
pinMode(14, INPUT_PULLUP);
#endif
// camera init
esp_err_t err = esp_camera_init(&config);
if (err != ESP_OK) {
Serial.printf("Camera init failed with error 0x%x", err);
return;
}
sensor_t * s = esp_camera_sensor_get();
// initial sensors are flipped vertically and colors are a bit saturated
if (s->id.PID == OV3660_PID) {
s->set_vflip(s, 1); // flip it back
s->set_brightness(s, 1); // up the brightness just a bit
s->set_saturation(s, -2); // lower the saturation
}
// drop down frame size for higher initial frame rate
s->set_framesize(s, FRAMESIZE_QVGA);
#if defined(CAMERA_MODEL_M5STACK_WIDE) || defined(CAMERA_MODEL_M5STACK_ESP32CAM)
s->set_vflip(s, 1);
s->set_hmirror(s, 1);
#endif
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");
startCameraServer();
Serial.print("Camera Ready! Use 'http://");
Serial.print(WiFi.localIP());
Serial.println("' to connect");
delay(2000);
espServer.begin();
}
void loop() {
WiFiClient client = espServer.available(); /* Check if a client is available */
if(!client)
{
return;
}
Serial.println("New Client!!!");
boolean currentLineIsBlank = true;
while (client.connected())
{
if (client.available())
{
char c = client.read();
request += c;
Serial.write(c);
if (c == '\n' && currentLineIsBlank)
{
if (request.indexOf("/GPIO12ON") != -1)
{
Serial.println("GPIO12 LED is ON");
digitalWrite(12, HIGH);
Serial.printf("12 HIGH");
}
if (request.indexOf("/GPIO12OFF") != -1)
{
Serial.println("GPIO12 LED is OFF");
digitalWrite(12, LOW);
Serial.printf("12 LOW");
}
if (request.indexOf("/GPIO13ON") != -1)
{
Serial.println("GPIO13 LED is ON");
digitalWrite(13, HIGH);
Serial.printf("13 HIGH");
}
if (request.indexOf("/GPIO13OFF") != -1)
{
Serial.println("GPIO13 LED is OFF");
digitalWrite(13, LOW);
Serial.printf("13 LOW");
}
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println("Connection: close");
client.println(); // IMPORTANT
break;
}
if(c == '\n')
{
currentLineIsBlank = true;
}
else if(c != '\r')
{
currentLineIsBlank = false;
}
//client.print("\n");
}
}
delay(1);
request = "";
//client.flush();
client.stop();
Serial.println("Client disconnected");
Serial.print("\n");
}
我做了 81 端口，因为我想在 ngrok 上使用摄像头和 I/O 控件。 （我只能在 ngrok 上打开 1 个端口，流 URL 已经在 81 端口上所以我试图将 I/O 控制部分移动到 81 端口）
我可以控制 I/O 引脚，但我不能在 xxx.xxx.x.xx:81/stream URL 上使用相机。你能帮帮我吗？
我得到 some help 并找到了这个。
首先，函数需要在app_httpd.cpp中这样定义：
static esp_err_t gpio12On_handler(httpd_req_t *req){
Serial.println("ON, 12.port HIGH");
digitalWrite(12, HIGH);
return httpd_resp_send(req, NULL, 0);
}
然后在 startCameraServer() 函数中，您需要像这样声明 URI：
httpd_uri_t gpio12On_uri = {
.uri = "/gpio12On",
.method = HTTP_GET,
.handler = gpio12On_handler,
.user_ctx = NULL
};
最后，您可以使用此代码将函数添加到服务器：
httpd_register_uri_handler(camera_httpd, &ledOn_uri);
注：
httpd_register_uri_handler 命令需要在
httpd_start 命令
如果你想在端口 80 上使用这个 URI，你需要使用
stream_httpd
但是如果你想使用81端口那么你需要使用camera_httpd
完整代码：
#include "esp_http_server.h"
#include "esp_timer.h"
#include "esp_camera.h"
#include "img_converters.h"
#include "camera_index.h"
#include "Arduino.h"
#include "fb_gfx.h"
#include "fd_forward.h"
#include "fr_forward.h"
#define ENROLL_CONFIRM_TIMES 5
#define FACE_ID_SAVE_NUMBER 7
#define FACE_COLOR_WHITE 0x00FFFFFF
#define FACE_COLOR_BLACK 0x00000000
#define FACE_COLOR_RED 0x000000FF
#define FACE_COLOR_GREEN 0x0000FF00
#define FACE_COLOR_BLUE 0x00FF0000
#define FACE_COLOR_YELLOW (FACE_COLOR_RED | FACE_COLOR_GREEN)
#define FACE_COLOR_CYAN (FACE_COLOR_BLUE | FACE_COLOR_GREEN)
#define FACE_COLOR_PURPLE (FACE_COLOR_BLUE | FACE_COLOR_RED)
typedef struct {
size_t size; //number of values used for filtering
size_t index; //current value index
size_t count; //value count
int sum;
int * values; //array to be filled with values
} ra_filter_t;
typedef struct {
httpd_req_t *req;
size_t len;
} jpg_chunking_t;
#define PART_BOUNDARY "123456789000000000000987654321"
static const char* _STREAM_CONTENT_TYPE = "multipart/x-mixed-replace;boundary=" PART_BOUNDARY;
static const char* _STREAM_BOUNDARY = "\r\n--" PART_BOUNDARY "\r\n";
static const char* _STREAM_PART = "Content-Type: image/jpeg\r\nContent-Length: %u\r\n\r\n";
static ra_filter_t ra_filter;
httpd_handle_t stream_httpd = NULL;
httpd_handle_t camera_httpd = NULL;
static mtmn_config_t mtmn_config = {0};
static int8_t detection_enabled = 0;
static int8_t recognition_enabled = 0;
static int8_t is_enrolling = 0;
static face_id_list id_list = {0};
static ra_filter_t * ra_filter_init(ra_filter_t * filter, size_t sample_size){
memset(filter, 0, sizeof(ra_filter_t));
filter->values = (int *)malloc(sample_size * sizeof(int));
if(!filter->values){
return NULL;
}
memset(filter->values, 0, sample_size * sizeof(int));
filter->size = sample_size;
return filter;
}
static int ra_filter_run(ra_filter_t * filter, int value){
if(!filter->values){
return value;
}
filter->sum -= filter->values[filter->index];
filter->values[filter->index] = value;
filter->sum += filter->values[filter->index];
filter->index++;
filter->index = filter->index % filter->size;
if (filter->count < filter->size) {
filter->count++;
}
return filter->sum / filter->count;
}
static void rgb_print(dl_matrix3du_t *image_matrix, uint32_t color, const char * str){
fb_data_t fb;
fb.width = image_matrix->w;
fb.height = image_matrix->h;
fb.data = image_matrix->item;
fb.bytes_per_pixel = 3;
fb.format = FB_BGR888;
fb_gfx_print(&fb, (fb.width - (strlen(str) * 14)) / 2, 10, color, str);
}
static int rgb_printf(dl_matrix3du_t *image_matrix, uint32_t color, const char *format, ...){
char loc_buf[64];
char * temp = loc_buf;
int len;
va_list arg;
va_list copy;
va_start(arg, format);
va_copy(copy, arg);
len = vsnprintf(loc_buf, sizeof(loc_buf), format, arg);
va_end(copy);
if(len >= sizeof(loc_buf)){
temp = (char*)malloc(len+1);
if(temp == NULL) {
return 0;
}
}
vsnprintf(temp, len+1, format, arg);
va_end(arg);
rgb_print(image_matrix, color, temp);
if(len > 64){
free(temp);
}
return len;
}
static void draw_face_boxes(dl_matrix3du_t *image_matrix, box_array_t *boxes, int face_id){
int x, y, w, h, i;
uint32_t color = FACE_COLOR_YELLOW;
if(face_id < 0){
color = FACE_COLOR_RED;
} else if(face_id > 0){
color = FACE_COLOR_GREEN;
}
fb_data_t fb;
fb.width = image_matrix->w;
fb.height = image_matrix->h;
fb.data = image_matrix->item;
fb.bytes_per_pixel = 3;
fb.format = FB_BGR888;
for (i = 0; i < boxes->len; i++){
// rectangle box
x = (int)boxes->box[i].box_p[0];
y = (int)boxes->box[i].box_p[1];
w = (int)boxes->box[i].box_p[2] - x + 1;
h = (int)boxes->box[i].box_p[3] - y + 1;
fb_gfx_drawFastHLine(&fb, x, y, w, color);
fb_gfx_drawFastHLine(&fb, x, y+h-1, w, color);
fb_gfx_drawFastVLine(&fb, x, y, h, color);
fb_gfx_drawFastVLine(&fb, x+w-1, y, h, color);
#if 0
// landmark
int x0, y0, j;
for (j = 0; j < 10; j+=2) {
x0 = (int)boxes->landmark[i].landmark_p[j];
y0 = (int)boxes->landmark[i].landmark_p[j+1];
fb_gfx_fillRect(&fb, x0, y0, 3, 3, color);
}
#endif
}
}
static int run_face_recognition(dl_matrix3du_t *image_matrix, box_array_t *net_boxes){
dl_matrix3du_t *aligned_face = NULL;
int matched_id = 0;
aligned_face = dl_matrix3du_alloc(1, FACE_WIDTH, FACE_HEIGHT, 3);
if(!aligned_face){
Serial.println("Could not allocate face recognition buffer");
return matched_id;
}
if (align_face(net_boxes, image_matrix, aligned_face) == ESP_OK){
if (is_enrolling == 1){
int8_t left_sample_face = enroll_face(&id_list, aligned_face);
if(left_sample_face == (ENROLL_CONFIRM_TIMES - 1)){
Serial.printf("Enrolling Face ID: %d\n", id_list.tail);
}
Serial.printf("Enrolling Face ID: %d sample %d\n", id_list.tail, ENROLL_CONFIRM_TIMES - left_sample_face);
rgb_printf(image_matrix, FACE_COLOR_CYAN, "ID[%u] Sample[%u]", id_list.tail, ENROLL_CONFIRM_TIMES - left_sample_face);
if (left_sample_face == 0){
is_enrolling = 0;
Serial.printf("Enrolled Face ID: %d\n", id_list.tail);
}
} else {
matched_id = recognize_face(&id_list, aligned_face);
if (matched_id >= 0) {
Serial.printf("Match Face ID: %u\n", matched_id);
rgb_printf(image_matrix, FACE_COLOR_GREEN, "Hello Subject %u", matched_id);
} else {
Serial.println("No Match Found");
rgb_print(image_matrix, FACE_COLOR_RED, "Intruder Alert!");
matched_id = -1;
}
}
} else {
Serial.println("Face Not Aligned");
//rgb_print(image_matrix, FACE_COLOR_YELLOW, "Human Detected");
}
dl_matrix3du_free(aligned_face);
return matched_id;
}
static size_t jpg_encode_stream(void * arg, size_t index, const void* data, size_t len){
jpg_chunking_t *j = (jpg_chunking_t *)arg;
if(!index){
j->len = 0;
}
if(httpd_resp_send_chunk(j->req, (const char *)data, len) != ESP_OK){
return 0;
}
j->len += len;
return len;
}
static esp_err_t capture_handler(httpd_req_t *req){
camera_fb_t * fb = NULL;
esp_err_t res = ESP_OK;
int64_t fr_start = esp_timer_get_time();
fb = esp_camera_fb_get();
if (!fb) {
Serial.println("Camera capture failed");
httpd_resp_send_500(req);
return ESP_FAIL;
}
httpd_resp_set_type(req, "image/jpeg");
httpd_resp_set_hdr(req, "Content-Disposition", "inline; filename=capture.jpg");
httpd_resp_set_hdr(req, "Access-Control-Allow-Origin", "*");
size_t out_len, out_width, out_height;
uint8_t * out_buf;
bool s;
bool detected = false;
int face_id = 0;
if(!detection_enabled || fb->width > 400){
size_t fb_len = 0;
if(fb->format == PIXFORMAT_JPEG){
fb_len = fb->len;
res = httpd_resp_send(req, (const char *)fb->buf, fb->len);
} else {
jpg_chunking_t jchunk = {req, 0};
res = frame2jpg_cb(fb, 80, jpg_encode_stream, &jchunk)?ESP_OK:ESP_FAIL;
httpd_resp_send_chunk(req, NULL, 0);
fb_len = jchunk.len;
}
esp_camera_fb_return(fb);
int64_t fr_end = esp_timer_get_time();
Serial.printf("JPG: %uB %ums\n", (uint32_t)(fb_len), (uint32_t)((fr_end - fr_start)/1000));
return res;
}
dl_matrix3du_t *image_matrix = dl_matrix3du_alloc(1, fb->width, fb->height, 3);
if (!image_matrix) {
esp_camera_fb_return(fb);
Serial.println("dl_matrix3du_alloc failed");
httpd_resp_send_500(req);
return ESP_FAIL;
}
out_buf = image_matrix->item;
out_len = fb->width * fb->height * 3;
out_width = fb->width;
out_height = fb->height;
s = fmt2rgb888(fb->buf, fb->len, fb->format, out_buf);
esp_camera_fb_return(fb);
if(!s){
dl_matrix3du_free(image_matrix);
Serial.println("to rgb888 failed");
httpd_resp_send_500(req);
return ESP_FAIL;
}
box_array_t *net_boxes = face_detect(image_matrix, &mtmn_config);
if (net_boxes){
detected = true;
if(recognition_enabled){
face_id = run_face_recognition(image_matrix, net_boxes);
}
draw_face_boxes(image_matrix, net_boxes, face_id);
free(net_boxes->score);
free(net_boxes->box);
free(net_boxes->landmark);
free(net_boxes);
}
jpg_chunking_t jchunk = {req, 0};
s = fmt2jpg_cb(out_buf, out_len, out_width, out_height, PIXFORMAT_RGB888, 90, jpg_encode_stream, &jchunk);
dl_matrix3du_free(image_matrix);
if(!s){
Serial.println("JPEG compression failed");
return ESP_FAIL;
}
int64_t fr_end = esp_timer_get_time();
Serial.printf("FACE: %uB %ums %s%d\n", (uint32_t)(jchunk.len), (uint32_t)((fr_end - fr_start)/1000), detected?"DETECTED ":"", face_id);
return res;
}
static esp_err_t stream_handler(httpd_req_t *req){
camera_fb_t * fb = NULL;
esp_err_t res = ESP_OK;
size_t _jpg_buf_len = 0;
uint8_t * _jpg_buf = NULL;
char * part_buf[64];
dl_matrix3du_t *image_matrix = NULL;
bool detected = false;
int face_id = 0;
int64_t fr_start = 0;
int64_t fr_ready = 0;
int64_t fr_face = 0;
int64_t fr_recognize = 0;
int64_t fr_encode = 0;
static int64_t last_frame = 0;
if(!last_frame) {
last_frame = esp_timer_get_time();
}
res = httpd_resp_set_type(req, _STREAM_CONTENT_TYPE);
if(res != ESP_OK){
return res;
}
httpd_resp_set_hdr(req, "Access-Control-Allow-Origin", "*");
while(true){
detected = false;
face_id = 0;
fb = esp_camera_fb_get();
if (!fb) {
Serial.println("Camera capture failed");
res = ESP_FAIL;
} else {
fr_start = esp_timer_get_time();
fr_ready = fr_start;
fr_face = fr_start;
fr_encode = fr_start;
fr_recognize = fr_start;
if(!detection_enabled || fb->width > 400){
if(fb->format != PIXFORMAT_JPEG){
bool jpeg_converted = frame2jpg(fb, 80, &_jpg_buf, &_jpg_buf_len);
esp_camera_fb_return(fb);
fb = NULL;
if(!jpeg_converted){
Serial.println("JPEG compression failed");
res = ESP_FAIL;
}
} else {
_jpg_buf_len = fb->len;
_jpg_buf = fb->buf;
}
} else {
image_matrix = dl_matrix3du_alloc(1, fb->width, fb->height, 3);
if (!image_matrix) {
Serial.println("dl_matrix3du_alloc failed");
res = ESP_FAIL;
} else {
if(!fmt2rgb888(fb->buf, fb->len, fb->format, image_matrix->item)){
Serial.println("fmt2rgb888 failed");
res = ESP_FAIL;
} else {
fr_ready = esp_timer_get_time();
box_array_t *net_boxes = NULL;
if(detection_enabled){
net_boxes = face_detect(image_matrix, &mtmn_config);
}
fr_face = esp_timer_get_time();
fr_recognize = fr_face;
if (net_boxes || fb->format != PIXFORMAT_JPEG){
if(net_boxes){
detected = true;
if(recognition_enabled){
face_id = run_face_recognition(image_matrix, net_boxes);
}
fr_recognize = esp_timer_get_time();
draw_face_boxes(image_matrix, net_boxes, face_id);
free(net_boxes->score);
free(net_boxes->box);
free(net_boxes->landmark);
free(net_boxes);
}
if(!fmt2jpg(image_matrix->item, fb->width*fb->height*3, fb->width, fb->height, PIXFORMAT_RGB888, 90, &_jpg_buf, &_jpg_buf_len)){
Serial.println("fmt2jpg failed");
res = ESP_FAIL;
}
esp_camera_fb_return(fb);
fb = NULL;
} else {
_jpg_buf = fb->buf;
_jpg_buf_len = fb->len;
}
fr_encode = esp_timer_get_time();
}
dl_matrix3du_free(image_matrix);
}
}
}
if(res == ESP_OK){
res = httpd_resp_send_chunk(req, _STREAM_BOUNDARY, strlen(_STREAM_BOUNDARY));
}
if(res == ESP_OK){
size_t hlen = snprintf((char *)part_buf, 64, _STREAM_PART, _jpg_buf_len);
res = httpd_resp_send_chunk(req, (const char *)part_buf, hlen);
}
if(res == ESP_OK){
res = httpd_resp_send_chunk(req, (const char *)_jpg_buf, _jpg_buf_len);
}
if(fb){
esp_camera_fb_return(fb);
fb = NULL;
_jpg_buf = NULL;
} else if(_jpg_buf){
free(_jpg_buf);
_jpg_buf = NULL;
}
if(res != ESP_OK){
break;
}
int64_t fr_end = esp_timer_get_time();
int64_t ready_time = (fr_ready - fr_start)/1000;
int64_t face_time = (fr_face - fr_ready)/1000;
int64_t recognize_time = (fr_recognize - fr_face)/1000;
int64_t encode_time = (fr_encode - fr_recognize)/1000;
int64_t process_time = (fr_encode - fr_start)/1000;
int64_t frame_time = fr_end - last_frame;
last_frame = fr_end;
frame_time /= 1000;
uint32_t avg_frame_time = ra_filter_run(&ra_filter, frame_time);
Serial.printf("MJPG: %uB %ums (%.1ffps), AVG: %ums (%.1ffps), %u+%u+%u+%u=%u %s%d\n",
(uint32_t)(_jpg_buf_len),
(uint32_t)frame_time, 1000.0 / (uint32_t)frame_time,
avg_frame_time, 1000.0 / avg_frame_time,
(uint32_t)ready_time, (uint32_t)face_time, (uint32_t)recognize_time, (uint32_t)encode_time, (uint32_t)process_time,
(detected)?"DETECTED ":"", face_id
);
}
last_frame = 0;
return res;
}
static esp_err_t cmd_handler(httpd_req_t *req){
char* buf;
size_t buf_len;
char variable[32] = {0,};
char value[32] = {0,};
buf_len = httpd_req_get_url_query_len(req) + 1;
if (buf_len > 1) {
buf = (char*)malloc(buf_len);
if(!buf){
httpd_resp_send_500(req);
return ESP_FAIL;
}
if (httpd_req_get_url_query_str(req, buf, buf_len) == ESP_OK) {
if (httpd_query_key_value(buf, "var", variable, sizeof(variable)) == ESP_OK &&
httpd_query_key_value(buf, "val", value, sizeof(value)) == ESP_OK) {
} else {
free(buf);
httpd_resp_send_404(req);
return ESP_FAIL;
}
} else {
free(buf);
httpd_resp_send_404(req);
return ESP_FAIL;
}
free(buf);
} else {
httpd_resp_send_404(req);
return ESP_FAIL;
}
int val = atoi(value);
sensor_t * s = esp_camera_sensor_get();
int res = 0;
if(!strcmp(variable, "framesize")) {
if(s->pixformat == PIXFORMAT_JPEG) res = s->set_framesize(s, (framesize_t)val);
}
else if(!strcmp(variable, "quality")) res = s->set_quality(s, val);
else if(!strcmp(variable, "contrast")) res = s->set_contrast(s, val);
else if(!strcmp(variable, "brightness")) res = s->set_brightness(s, val);
else if(!strcmp(variable, "saturation")) res = s->set_saturation(s, val);
else if(!strcmp(variable, "gainceiling")) res = s->set_gainceiling(s, (gainceiling_t)val);
else if(!strcmp(variable, "colorbar")) res = s->set_colorbar(s, val);
else if(!strcmp(variable, "awb")) res = s->set_whitebal(s, val);
else if(!strcmp(variable, "agc")) res = s->set_gain_ctrl(s, val);
else if(!strcmp(variable, "aec")) res = s->set_exposure_ctrl(s, val);
else if(!strcmp(variable, "hmirror")) res = s->set_hmirror(s, val);
else if(!strcmp(variable, "vflip")) res = s->set_vflip(s, val);
else if(!strcmp(variable, "awb_gain")) res = s->set_awb_gain(s, val);
else if(!strcmp(variable, "agc_gain")) res = s->set_agc_gain(s, val);
else if(!strcmp(variable, "aec_value")) res = s->set_aec_value(s, val);
else if(!strcmp(variable, "aec2")) res = s->set_aec2(s, val);
else if(!strcmp(variable, "dcw")) res = s->set_dcw(s, val);
else if(!strcmp(variable, "bpc")) res = s->set_bpc(s, val);
else if(!strcmp(variable, "wpc")) res = s->set_wpc(s, val);
else if(!strcmp(variable, "raw_gma")) res = s->set_raw_gma(s, val);
else if(!strcmp(variable, "lenc")) res = s->set_lenc(s, val);
else if(!strcmp(variable, "special_effect")) res = s->set_special_effect(s, val);
else if(!strcmp(variable, "wb_mode")) res = s->set_wb_mode(s, val);
else if(!strcmp(variable, "ae_level")) res = s->set_ae_level(s, val);
else if(!strcmp(variable, "face_detect")) {
detection_enabled = val;
if(!detection_enabled) {
recognition_enabled = 0;
}
}
else if(!strcmp(variable, "face_enroll")) is_enrolling = val;
else if(!strcmp(variable, "face_recognize")) {
recognition_enabled = val;
if(recognition_enabled){
detection_enabled = val;
}
}
else {
res = -1;
}
if(res){
return httpd_resp_send_500(req);
}
httpd_resp_set_hdr(req, "Access-Control-Allow-Origin", "*");
return httpd_resp_send(req, NULL, 0);
}
static esp_err_t status_handler(httpd_req_t *req){
static char json_response[1024];
sensor_t * s = esp_camera_sensor_get();
char * p = json_response;
*p++ = '{';
p+=sprintf(p, "\"framesize\":%u,", s->status.framesize);
p+=sprintf(p, "\"quality\":%u,", s->status.quality);
p+=sprintf(p, "\"brightness\":%d,", s->status.brightness);
p+=sprintf(p, "\"contrast\":%d,", s->status.contrast);
p+=sprintf(p, "\"saturation\":%d,", s->status.saturation);
p+=sprintf(p, "\"sharpness\":%d,", s->status.sharpness);
p+=sprintf(p, "\"special_effect\":%u,", s->status.special_effect);
p+=sprintf(p, "\"wb_mode\":%u,", s->status.wb_mode);
p+=sprintf(p, "\"awb\":%u,", s->status.awb);
p+=sprintf(p, "\"awb_gain\":%u,", s->status.awb_gain);
p+=sprintf(p, "\"aec\":%u,", s->status.aec);
p+=sprintf(p, "\"aec2\":%u,", s->status.aec2);
p+=sprintf(p, "\"ae_level\":%d,", s->status.ae_level);
p+=sprintf(p, "\"aec_value\":%u,", s->status.aec_value);
p+=sprintf(p, "\"agc\":%u,", s->status.agc);
p+=sprintf(p, "\"agc_gain\":%u,", s->status.agc_gain);
p+=sprintf(p, "\"gainceiling\":%u,", s->status.gainceiling);
p+=sprintf(p, "\"bpc\":%u,", s->status.bpc);
p+=sprintf(p, "\"wpc\":%u,", s->status.wpc);
p+=sprintf(p, "\"raw_gma\":%u,", s->status.raw_gma);
p+=sprintf(p, "\"lenc\":%u,", s->status.lenc);
p+=sprintf(p, "\"vflip\":%u,", s->status.vflip);
p+=sprintf(p, "\"hmirror\":%u,", s->status.hmirror);
p+=sprintf(p, "\"dcw\":%u,", s->status.dcw);
p+=sprintf(p, "\"colorbar\":%u,", s->status.colorbar);
p+=sprintf(p, "\"face_detect\":%u,", detection_enabled);
p+=sprintf(p, "\"face_enroll\":%u,", is_enrolling);
p+=sprintf(p, "\"face_recognize\":%u", recognition_enabled);
*p++ = '}';
*p++ = 0;
httpd_resp_set_type(req, "application/json");
httpd_resp_set_hdr(req, "Access-Control-Allow-Origin", "*");
return httpd_resp_send(req, json_response, strlen(json_response));
}
static esp_err_t index_handler(httpd_req_t *req){
httpd_resp_set_type(req, "text/html");
httpd_resp_set_hdr(req, "Content-Encoding", "gzip");
sensor_t * s = esp_camera_sensor_get();
if (s->id.PID == OV3660_PID) {
return httpd_resp_send(req, (const char *)index_ov3660_html_gz, index_ov3660_html_gz_len);
}
return httpd_resp_send(req, (const char *)index_ov2640_html_gz, index_ov2640_html_gz_len);
}
static esp_err_t gpio12On_handler(httpd_req_t *req){
Serial.println("ON, 12.port HIGH");
digitalWrite(12, HIGH);
return httpd_resp_send(req, NULL, 0);
}
static esp_err_t gpio12Off_handler(httpd_req_t *req){
Serial.println("OFF, 12.port LOW");
digitalWrite(12, LOW);
return httpd_resp_send(req, NULL, 0);
}
static esp_err_t gpio13On_handler(httpd_req_t *req){
Serial.println("ON, 13.port HIGH");
digitalWrite(13, HIGH);
return httpd_resp_send(req, NULL, 0);
}
static esp_err_t gpio13Off_handler(httpd_req_t *req){
Serial.println("OF, 13.port LOW");
digitalWrite(13, LOW);
return httpd_resp_send(req, NULL, 0);
}
void startCameraServer(){
httpd_config_t config = HTTPD_DEFAULT_CONFIG();
httpd_uri_t index_uri = {
.uri = "/",
.method = HTTP_GET,
.handler = index_handler,
.user_ctx = NULL
};
httpd_uri_t status_uri = {
.uri = "/status",
.method = HTTP_GET,
.handler = status_handler,
.user_ctx = NULL
};
httpd_uri_t cmd_uri = {
.uri = "/control",
.method = HTTP_GET,
.handler = cmd_handler,
.user_ctx = NULL
};
httpd_uri_t capture_uri = {
.uri = "/capture",
.method = HTTP_GET,
.handler = capture_handler,
.user_ctx = NULL
};
httpd_uri_t stream_uri = {
.uri = "/stream",
.method = HTTP_GET,
.handler = stream_handler,
.user_ctx = NULL
};
httpd_uri_t gpio12On_uri = {
.uri = "/gpio12On",
.method = HTTP_GET,
.handler = gpio12On_handler,
.user_ctx = NULL
};
httpd_uri_t gpio12Off_uri = {
.uri = "/gpio12Off",
.method = HTTP_GET,
.handler = gpio12Off_handler,
.user_ctx = NULL
};
httpd_uri_t gpio13On_uri = {
.uri = "/gpio13On",
.method = HTTP_GET,
.handler = gpio13On_handler,
.user_ctx = NULL
};
httpd_uri_t gpio13Off_uri = {
.uri = "/gpio13Off",
.method = HTTP_GET,
.handler = gpio13Off_handler,
.user_ctx = NULL
};
ra_filter_init(&ra_filter, 20);
mtmn_config.type = FAST;
mtmn_config.min_face = 80;
mtmn_config.pyramid = 0.707;
mtmn_config.pyramid_times = 4;
mtmn_config.p_threshold.score = 0.6;
mtmn_config.p_threshold.nms = 0.7;
mtmn_config.p_threshold.candidate_number = 20;
mtmn_config.r_threshold.score = 0.7;
mtmn_config.r_threshold.nms = 0.7;
mtmn_config.r_threshold.candidate_number = 10;
mtmn_config.o_threshold.score = 0.7;
mtmn_config.o_threshold.nms = 0.7;
mtmn_config.o_threshold.candidate_number = 1;
face_id_init(&id_list, FACE_ID_SAVE_NUMBER, ENROLL_CONFIRM_TIMES);
Serial.printf("Starting web server on port: '%d'\n", config.server_port);
if (httpd_start(&camera_httpd, &config) == ESP_OK) {
httpd_register_uri_handler(camera_httpd, &index_uri);
httpd_register_uri_handler(camera_httpd, &cmd_uri);
httpd_register_uri_handler(camera_httpd, &status_uri);
httpd_register_uri_handler(camera_httpd, &capture_uri);
}
config.server_port += 1;
config.ctrl_port += 1;
Serial.printf("Starting stream server on port: '%d'\n", config.server_port);
if (httpd_start(&stream_httpd, &config) == ESP_OK) {
httpd_register_uri_handler(stream_httpd, &stream_uri);
httpd_register_uri_handler(stream_httpd, &gpio12On_uri);
httpd_register_uri_handler(stream_httpd, &gpio12Off_uri);
httpd_register_uri_handler(stream_httpd, &gpio13On_uri);
httpd_register_uri_handler(stream_httpd, &gpio13Off_uri);
}
}
我正在尝试控制 ESP32CAM 的 I/O 引脚并从摄像头获取视图。
为此，我尝试像这样编辑 CameraWebServer 示例：
#include "esp_camera.h"
#include <WiFi.h>
//
// WARNING!!! PSRAM IC required for UXGA resolution and high JPEG quality
// Ensure ESP32 Wrover Module or other board with PSRAM is selected
// Partial images will be transmitted if image exceeds buffer size
//
// Select camera model
//#define CAMERA_MODEL_WROVER_KIT // Has PSRAM
//#define CAMERA_MODEL_ESP_EYE // Has PSRAM
//#define CAMERA_MODEL_M5STACK_PSRAM // Has PSRAM
//#define CAMERA_MODEL_M5STACK_V2_PSRAM // M5Camera version B Has PSRAM
//#define CAMERA_MODEL_M5STACK_WIDE // Has PSRAM
//#define CAMERA_MODEL_M5STACK_ESP32CAM // No PSRAM
#define CAMERA_MODEL_AI_THINKER // Has PSRAM
//#define CAMERA_MODEL_TTGO_T_JOURNAL // No PSRAM
#include "camera_pins.h"
WiFiServer espServer(81);
String request;
const char* ssid = "VODAFONE_9D53";
const char* password = "fc1f1fff";
void startCameraServer();
void setup() {
Serial.begin(115200);
Serial.setDebugOutput(true);
Serial.println();
pinMode(12, OUTPUT);
pinMode(13, OUTPUT);
digitalWrite(4, LOW);
camera_config_t config;
config.ledc_channel = LEDC_CHANNEL_0;
config.ledc_timer = LEDC_TIMER_0;
config.pin_d0 = Y2_GPIO_NUM;
config.pin_d1 = Y3_GPIO_NUM;
config.pin_d2 = Y4_GPIO_NUM;
config.pin_d3 = Y5_GPIO_NUM;
config.pin_d4 = Y6_GPIO_NUM;
config.pin_d5 = Y7_GPIO_NUM;
config.pin_d6 = Y8_GPIO_NUM;
config.pin_d7 = Y9_GPIO_NUM;
config.pin_xclk = XCLK_GPIO_NUM;
config.pin_pclk = PCLK_GPIO_NUM;
config.pin_vsync = VSYNC_GPIO_NUM;
config.pin_href = HREF_GPIO_NUM;
config.pin_sscb_sda = SIOD_GPIO_NUM;
config.pin_sscb_scl = SIOC_GPIO_NUM;
config.pin_pwdn = PWDN_GPIO_NUM;
config.pin_reset = RESET_GPIO_NUM;
config.xclk_freq_hz = 20000000;
config.pixel_format = PIXFORMAT_JPEG;
// if PSRAM IC present, init with UXGA resolution and higher JPEG quality
// for larger pre-allocated frame buffer.
if(psramFound()){
config.frame_size = FRAMESIZE_UXGA;
config.jpeg_quality = 10;
config.fb_count = 2;
} else {
config.frame_size = FRAMESIZE_SVGA;
config.jpeg_quality = 12;
config.fb_count = 1;
}
#if defined(CAMERA_MODEL_ESP_EYE)
pinMode(13, INPUT_PULLUP);
pinMode(14, INPUT_PULLUP);
#endif
// camera init
esp_err_t err = esp_camera_init(&config);
if (err != ESP_OK) {
Serial.printf("Camera init failed with error 0x%x", err);
return;
}
sensor_t * s = esp_camera_sensor_get();
// initial sensors are flipped vertically and colors are a bit saturated
if (s->id.PID == OV3660_PID) {
s->set_vflip(s, 1); // flip it back
s->set_brightness(s, 1); // up the brightness just a bit
s->set_saturation(s, -2); // lower the saturation
}
// drop down frame size for higher initial frame rate
s->set_framesize(s, FRAMESIZE_QVGA);
#if defined(CAMERA_MODEL_M5STACK_WIDE) || defined(CAMERA_MODEL_M5STACK_ESP32CAM)
s->set_vflip(s, 1);
s->set_hmirror(s, 1);
#endif
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");
startCameraServer();
Serial.print("Camera Ready! Use 'http://");
Serial.print(WiFi.localIP());
Serial.println("' to connect");
delay(2000);
espServer.begin();
}
void loop() {
WiFiClient client = espServer.available(); /* Check if a client is available */
if(!client)
{
return;
}
Serial.println("New Client!!!");
boolean currentLineIsBlank = true;
while (client.connected())
{
if (client.available())
{
char c = client.read();
request += c;
Serial.write(c);
if (c == '\n' && currentLineIsBlank)
{
if (request.indexOf("/GPIO12ON") != -1)
{
Serial.println("GPIO12 LED is ON");
digitalWrite(12, HIGH);
Serial.printf("12 HIGH");
}
if (request.indexOf("/GPIO12OFF") != -1)
{
Serial.println("GPIO12 LED is OFF");
digitalWrite(12, LOW);
Serial.printf("12 LOW");
}
if (request.indexOf("/GPIO13ON") != -1)
{
Serial.println("GPIO13 LED is ON");
digitalWrite(13, HIGH);
Serial.printf("13 HIGH");
}
if (request.indexOf("/GPIO13OFF") != -1)
{
Serial.println("GPIO13 LED is OFF");
digitalWrite(13, LOW);
Serial.printf("13 LOW");
}
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println("Connection: close");
client.println(); // IMPORTANT
break;
}
if(c == '\n')
{
currentLineIsBlank = true;
}
else if(c != '\r')
{
currentLineIsBlank = false;
}
//client.print("\n");
}
}
delay(1);
request = "";
//client.flush();
client.stop();
Serial.println("Client disconnected");
Serial.print("\n");
}
我做了 81 端口，因为我想在 ngrok 上使用摄像头和 I/O 控件。 （我只能在 ngrok 上打开 1 个端口，流 URL 已经在 81 端口上所以我试图将 I/O 控制部分移动到 81 端口）
我可以控制 I/O 引脚，但我不能在 xxx.xxx.x.xx:81/stream URL 上使用相机。你能帮帮我吗？
我得到 some help 并找到了这个。
首先，函数需要在app_httpd.cpp中这样定义：
static esp_err_t gpio12On_handler(httpd_req_t *req){
Serial.println("ON, 12.port HIGH");
digitalWrite(12, HIGH);
return httpd_resp_send(req, NULL, 0);
}
然后在 startCameraServer() 函数中，您需要像这样声明 URI：
httpd_uri_t gpio12On_uri = {
.uri = "/gpio12On",
.method = HTTP_GET,
.handler = gpio12On_handler,
.user_ctx = NULL
};
最后，您可以使用此代码将函数添加到服务器：
httpd_register_uri_handler(camera_httpd, &ledOn_uri);
注：
httpd_register_uri_handler 命令需要在 httpd_start 命令
如果你想在端口 80 上使用这个 URI，你需要使用 stream_httpd
但是如果你想使用81端口那么你需要使用camera_httpd
完整代码：
#include "esp_http_server.h"
#include "esp_timer.h"
#include "esp_camera.h"
#include "img_converters.h"
#include "camera_index.h"
#include "Arduino.h"
#include "fb_gfx.h"
#include "fd_forward.h"
#include "fr_forward.h"
#define ENROLL_CONFIRM_TIMES 5
#define FACE_ID_SAVE_NUMBER 7
#define FACE_COLOR_WHITE 0x00FFFFFF
#define FACE_COLOR_BLACK 0x00000000
#define FACE_COLOR_RED 0x000000FF
#define FACE_COLOR_GREEN 0x0000FF00
#define FACE_COLOR_BLUE 0x00FF0000
#define FACE_COLOR_YELLOW (FACE_COLOR_RED | FACE_COLOR_GREEN)
#define FACE_COLOR_CYAN (FACE_COLOR_BLUE | FACE_COLOR_GREEN)
#define FACE_COLOR_PURPLE (FACE_COLOR_BLUE | FACE_COLOR_RED)
typedef struct {
size_t size; //number of values used for filtering
size_t index; //current value index
size_t count; //value count
int sum;
int * values; //array to be filled with values
} ra_filter_t;
typedef struct {
httpd_req_t *req;
size_t len;
} jpg_chunking_t;
#define PART_BOUNDARY "123456789000000000000987654321"
static const char* _STREAM_CONTENT_TYPE = "multipart/x-mixed-replace;boundary=" PART_BOUNDARY;
static const char* _STREAM_BOUNDARY = "\r\n--" PART_BOUNDARY "\r\n";
static const char* _STREAM_PART = "Content-Type: image/jpeg\r\nContent-Length: %u\r\n\r\n";
static ra_filter_t ra_filter;
httpd_handle_t stream_httpd = NULL;
httpd_handle_t camera_httpd = NULL;
static mtmn_config_t mtmn_config = {0};
static int8_t detection_enabled = 0;
static int8_t recognition_enabled = 0;
static int8_t is_enrolling = 0;
static face_id_list id_list = {0};
static ra_filter_t * ra_filter_init(ra_filter_t * filter, size_t sample_size){
memset(filter, 0, sizeof(ra_filter_t));
filter->values = (int *)malloc(sample_size * sizeof(int));
if(!filter->values){
return NULL;
}
memset(filter->values, 0, sample_size * sizeof(int));
filter->size = sample_size;
return filter;
}
static int ra_filter_run(ra_filter_t * filter, int value){
if(!filter->values){
return value;
}
filter->sum -= filter->values[filter->index];
filter->values[filter->index] = value;
filter->sum += filter->values[filter->index];
filter->index++;
filter->index = filter->index % filter->size;
if (filter->count < filter->size) {
filter->count++;
}
return filter->sum / filter->count;
}
static void rgb_print(dl_matrix3du_t *image_matrix, uint32_t color, const char * str){
fb_data_t fb;
fb.width = image_matrix->w;
fb.height = image_matrix->h;
fb.data = image_matrix->item;
fb.bytes_per_pixel = 3;
fb.format = FB_BGR888;
fb_gfx_print(&fb, (fb.width - (strlen(str) * 14)) / 2, 10, color, str);
}
static int rgb_printf(dl_matrix3du_t *image_matrix, uint32_t color, const char *format, ...){
char loc_buf[64];
char * temp = loc_buf;
int len;
va_list arg;
va_list copy;
va_start(arg, format);
va_copy(copy, arg);
len = vsnprintf(loc_buf, sizeof(loc_buf), format, arg);
va_end(copy);
if(len >= sizeof(loc_buf)){
temp = (char*)malloc(len+1);
if(temp == NULL) {
return 0;
}
}
vsnprintf(temp, len+1, format, arg);
va_end(arg);
rgb_print(image_matrix, color, temp);
if(len > 64){
free(temp);
}
return len;
}
static void draw_face_boxes(dl_matrix3du_t *image_matrix, box_array_t *boxes, int face_id){
int x, y, w, h, i;
uint32_t color = FACE_COLOR_YELLOW;
if(face_id < 0){
color = FACE_COLOR_RED;
} else if(face_id > 0){
color = FACE_COLOR_GREEN;
}
fb_data_t fb;
fb.width = image_matrix->w;
fb.height = image_matrix->h;
fb.data = image_matrix->item;
fb.bytes_per_pixel = 3;
fb.format = FB_BGR888;
for (i = 0; i < boxes->len; i++){
// rectangle box
x = (int)boxes->box[i].box_p[0];
y = (int)boxes->box[i].box_p[1];
w = (int)boxes->box[i].box_p[2] - x + 1;
h = (int)boxes->box[i].box_p[3] - y + 1;
fb_gfx_drawFastHLine(&fb, x, y, w, color);
fb_gfx_drawFastHLine(&fb, x, y+h-1, w, color);
fb_gfx_drawFastVLine(&fb, x, y, h, color);
fb_gfx_drawFastVLine(&fb, x+w-1, y, h, color);
#if 0
// landmark
int x0, y0, j;
for (j = 0; j < 10; j+=2) {
x0 = (int)boxes->landmark[i].landmark_p[j];
y0 = (int)boxes->landmark[i].landmark_p[j+1];
fb_gfx_fillRect(&fb, x0, y0, 3, 3, color);
}
#endif
}
}
static int run_face_recognition(dl_matrix3du_t *image_matrix, box_array_t *net_boxes){
dl_matrix3du_t *aligned_face = NULL;
int matched_id = 0;
aligned_face = dl_matrix3du_alloc(1, FACE_WIDTH, FACE_HEIGHT, 3);
if(!aligned_face){
Serial.println("Could not allocate face recognition buffer");
return matched_id;
}
if (align_face(net_boxes, image_matrix, aligned_face) == ESP_OK){
if (is_enrolling == 1){
int8_t left_sample_face = enroll_face(&id_list, aligned_face);
if(left_sample_face == (ENROLL_CONFIRM_TIMES - 1)){
Serial.printf("Enrolling Face ID: %d\n", id_list.tail);
}
Serial.printf("Enrolling Face ID: %d sample %d\n", id_list.tail, ENROLL_CONFIRM_TIMES - left_sample_face);
rgb_printf(image_matrix, FACE_COLOR_CYAN, "ID[%u] Sample[%u]", id_list.tail, ENROLL_CONFIRM_TIMES - left_sample_face);
if (left_sample_face == 0){
is_enrolling = 0;
Serial.printf("Enrolled Face ID: %d\n", id_list.tail);
}
} else {
matched_id = recognize_face(&id_list, aligned_face);
if (matched_id >= 0) {
Serial.printf("Match Face ID: %u\n", matched_id);
rgb_printf(image_matrix, FACE_COLOR_GREEN, "Hello Subject %u", matched_id);
} else {
Serial.println("No Match Found");
rgb_print(image_matrix, FACE_COLOR_RED, "Intruder Alert!");
matched_id = -1;
}
}
} else {
Serial.println("Face Not Aligned");
//rgb_print(image_matrix, FACE_COLOR_YELLOW, "Human Detected");
}
dl_matrix3du_free(aligned_face);
return matched_id;
}
static size_t jpg_encode_stream(void * arg, size_t index, const void* data, size_t len){
jpg_chunking_t *j = (jpg_chunking_t *)arg;
if(!index){
j->len = 0;
}
if(httpd_resp_send_chunk(j->req, (const char *)data, len) != ESP_OK){
return 0;
}
j->len += len;
return len;
}
static esp_err_t capture_handler(httpd_req_t *req){
camera_fb_t * fb = NULL;
esp_err_t res = ESP_OK;
int64_t fr_start = esp_timer_get_time();
fb = esp_camera_fb_get();
if (!fb) {
Serial.println("Camera capture failed");
httpd_resp_send_500(req);
return ESP_FAIL;
}
httpd_resp_set_type(req, "image/jpeg");
httpd_resp_set_hdr(req, "Content-Disposition", "inline; filename=capture.jpg");
httpd_resp_set_hdr(req, "Access-Control-Allow-Origin", "*");
size_t out_len, out_width, out_height;
uint8_t * out_buf;
bool s;
bool detected = false;
int face_id = 0;
if(!detection_enabled || fb->width > 400){
size_t fb_len = 0;
if(fb->format == PIXFORMAT_JPEG){
fb_len = fb->len;
res = httpd_resp_send(req, (const char *)fb->buf, fb->len);
} else {
jpg_chunking_t jchunk = {req, 0};
res = frame2jpg_cb(fb, 80, jpg_encode_stream, &jchunk)?ESP_OK:ESP_FAIL;
httpd_resp_send_chunk(req, NULL, 0);
fb_len = jchunk.len;
}
esp_camera_fb_return(fb);
int64_t fr_end = esp_timer_get_time();
Serial.printf("JPG: %uB %ums\n", (uint32_t)(fb_len), (uint32_t)((fr_end - fr_start)/1000));
return res;
}
dl_matrix3du_t *image_matrix = dl_matrix3du_alloc(1, fb->width, fb->height, 3);
if (!image_matrix) {
esp_camera_fb_return(fb);
Serial.println("dl_matrix3du_alloc failed");
httpd_resp_send_500(req);
return ESP_FAIL;
}
out_buf = image_matrix->item;
out_len = fb->width * fb->height * 3;
out_width = fb->width;
out_height = fb->height;
s = fmt2rgb888(fb->buf, fb->len, fb->format, out_buf);
esp_camera_fb_return(fb);
if(!s){
dl_matrix3du_free(image_matrix);
Serial.println("to rgb888 failed");
httpd_resp_send_500(req);
return ESP_FAIL;
}
box_array_t *net_boxes = face_detect(image_matrix, &mtmn_config);
if (net_boxes){
detected = true;
if(recognition_enabled){
face_id = run_face_recognition(image_matrix, net_boxes);
}
draw_face_boxes(image_matrix, net_boxes, face_id);
free(net_boxes->score);
free(net_boxes->box);
free(net_boxes->landmark);
free(net_boxes);
}
jpg_chunking_t jchunk = {req, 0};
s = fmt2jpg_cb(out_buf, out_len, out_width, out_height, PIXFORMAT_RGB888, 90, jpg_encode_stream, &jchunk);
dl_matrix3du_free(image_matrix);
if(!s){
Serial.println("JPEG compression failed");
return ESP_FAIL;
}
int64_t fr_end = esp_timer_get_time();
Serial.printf("FACE: %uB %ums %s%d\n", (uint32_t)(jchunk.len), (uint32_t)((fr_end - fr_start)/1000), detected?"DETECTED ":"", face_id);
return res;
}
static esp_err_t stream_handler(httpd_req_t *req){
camera_fb_t * fb = NULL;
esp_err_t res = ESP_OK;
size_t _jpg_buf_len = 0;
uint8_t * _jpg_buf = NULL;
char * part_buf[64];
dl_matrix3du_t *image_matrix = NULL;
bool detected = false;
int face_id = 0;
int64_t fr_start = 0;
int64_t fr_ready = 0;
int64_t fr_face = 0;
int64_t fr_recognize = 0;
int64_t fr_encode = 0;
static int64_t last_frame = 0;
if(!last_frame) {
last_frame = esp_timer_get_time();
}
res = httpd_resp_set_type(req, _STREAM_CONTENT_TYPE);
if(res != ESP_OK){
return res;
}
httpd_resp_set_hdr(req, "Access-Control-Allow-Origin", "*");
while(true){
detected = false;
face_id = 0;
fb = esp_camera_fb_get();
if (!fb) {
Serial.println("Camera capture failed");
res = ESP_FAIL;
} else {
fr_start = esp_timer_get_time();
fr_ready = fr_start;
fr_face = fr_start;
fr_encode = fr_start;
fr_recognize = fr_start;
if(!detection_enabled || fb->width > 400){
if(fb->format != PIXFORMAT_JPEG){
bool jpeg_converted = frame2jpg(fb, 80, &_jpg_buf, &_jpg_buf_len);
esp_camera_fb_return(fb);
fb = NULL;
if(!jpeg_converted){
Serial.println("JPEG compression failed");
res = ESP_FAIL;
}
} else {
_jpg_buf_len = fb->len;
_jpg_buf = fb->buf;
}
} else {
image_matrix = dl_matrix3du_alloc(1, fb->width, fb->height, 3);
if (!image_matrix) {
Serial.println("dl_matrix3du_alloc failed");
res = ESP_FAIL;
} else {
if(!fmt2rgb888(fb->buf, fb->len, fb->format, image_matrix->item)){
Serial.println("fmt2rgb888 failed");
res = ESP_FAIL;
} else {
fr_ready = esp_timer_get_time();
box_array_t *net_boxes = NULL;
if(detection_enabled){
net_boxes = face_detect(image_matrix, &mtmn_config);
}
fr_face = esp_timer_get_time();
fr_recognize = fr_face;
if (net_boxes || fb->format != PIXFORMAT_JPEG){
if(net_boxes){
detected = true;
if(recognition_enabled){
face_id = run_face_recognition(image_matrix, net_boxes);
}
fr_recognize = esp_timer_get_time();
draw_face_boxes(image_matrix, net_boxes, face_id);
free(net_boxes->score);
free(net_boxes->box);
free(net_boxes->landmark);
free(net_boxes);
}
if(!fmt2jpg(image_matrix->item, fb->width*fb->height*3, fb->width, fb->height, PIXFORMAT_RGB888, 90, &_jpg_buf, &_jpg_buf_len)){
Serial.println("fmt2jpg failed");
res = ESP_FAIL;
}
esp_camera_fb_return(fb);
fb = NULL;
} else {
_jpg_buf = fb->buf;
_jpg_buf_len = fb->len;
}
fr_encode = esp_timer_get_time();
}
dl_matrix3du_free(image_matrix);
}
}
}
if(res == ESP_OK){
res = httpd_resp_send_chunk(req, _STREAM_BOUNDARY, strlen(_STREAM_BOUNDARY));
}
if(res == ESP_OK){
size_t hlen = snprintf((char *)part_buf, 64, _STREAM_PART, _jpg_buf_len);
res = httpd_resp_send_chunk(req, (const char *)part_buf, hlen);
}
if(res == ESP_OK){
res = httpd_resp_send_chunk(req, (const char *)_jpg_buf, _jpg_buf_len);
}
if(fb){
esp_camera_fb_return(fb);
fb = NULL;
_jpg_buf = NULL;
} else if(_jpg_buf){
free(_jpg_buf);
_jpg_buf = NULL;
}
if(res != ESP_OK){
break;
}
int64_t fr_end = esp_timer_get_time();
int64_t ready_time = (fr_ready - fr_start)/1000;
int64_t face_time = (fr_face - fr_ready)/1000;
int64_t recognize_time = (fr_recognize - fr_face)/1000;
int64_t encode_time = (fr_encode - fr_recognize)/1000;
int64_t process_time = (fr_encode - fr_start)/1000;
int64_t frame_time = fr_end - last_frame;
last_frame = fr_end;
frame_time /= 1000;
uint32_t avg_frame_time = ra_filter_run(&ra_filter, frame_time);
Serial.printf("MJPG: %uB %ums (%.1ffps), AVG: %ums (%.1ffps), %u+%u+%u+%u=%u %s%d\n",
(uint32_t)(_jpg_buf_len),
(uint32_t)frame_time, 1000.0 / (uint32_t)frame_time,
avg_frame_time, 1000.0 / avg_frame_time,
(uint32_t)ready_time, (uint32_t)face_time, (uint32_t)recognize_time, (uint32_t)encode_time, (uint32_t)process_time,
(detected)?"DETECTED ":"", face_id
);
}
last_frame = 0;
return res;
}
static esp_err_t cmd_handler(httpd_req_t *req){
char* buf;
size_t buf_len;
char variable[32] = {0,};
char value[32] = {0,};
buf_len = httpd_req_get_url_query_len(req) + 1;
if (buf_len > 1) {
buf = (char*)malloc(buf_len);
if(!buf){
httpd_resp_send_500(req);
return ESP_FAIL;
}
if (httpd_req_get_url_query_str(req, buf, buf_len) == ESP_OK) {
if (httpd_query_key_value(buf, "var", variable, sizeof(variable)) == ESP_OK &&
httpd_query_key_value(buf, "val", value, sizeof(value)) == ESP_OK) {
} else {
free(buf);
httpd_resp_send_404(req);
return ESP_FAIL;
}
} else {
free(buf);
httpd_resp_send_404(req);
return ESP_FAIL;
}
free(buf);
} else {
httpd_resp_send_404(req);
return ESP_FAIL;
}
int val = atoi(value);
sensor_t * s = esp_camera_sensor_get();
int res = 0;
if(!strcmp(variable, "framesize")) {
if(s->pixformat == PIXFORMAT_JPEG) res = s->set_framesize(s, (framesize_t)val);
}
else if(!strcmp(variable, "quality")) res = s->set_quality(s, val);
else if(!strcmp(variable, "contrast")) res = s->set_contrast(s, val);
else if(!strcmp(variable, "brightness")) res = s->set_brightness(s, val);
else if(!strcmp(variable, "saturation")) res = s->set_saturation(s, val);
else if(!strcmp(variable, "gainceiling")) res = s->set_gainceiling(s, (gainceiling_t)val);
else if(!strcmp(variable, "colorbar")) res = s->set_colorbar(s, val);
else if(!strcmp(variable, "awb")) res = s->set_whitebal(s, val);
else if(!strcmp(variable, "agc")) res = s->set_gain_ctrl(s, val);
else if(!strcmp(variable, "aec")) res = s->set_exposure_ctrl(s, val);
else if(!strcmp(variable, "hmirror")) res = s->set_hmirror(s, val);
else if(!strcmp(variable, "vflip")) res = s->set_vflip(s, val);
else if(!strcmp(variable, "awb_gain")) res = s->set_awb_gain(s, val);
else if(!strcmp(variable, "agc_gain")) res = s->set_agc_gain(s, val);
else if(!strcmp(variable, "aec_value")) res = s->set_aec_value(s, val);
else if(!strcmp(variable, "aec2")) res = s->set_aec2(s, val);
else if(!strcmp(variable, "dcw")) res = s->set_dcw(s, val);
else if(!strcmp(variable, "bpc")) res = s->set_bpc(s, val);
else if(!strcmp(variable, "wpc")) res = s->set_wpc(s, val);
else if(!strcmp(variable, "raw_gma")) res = s->set_raw_gma(s, val);
else if(!strcmp(variable, "lenc")) res = s->set_lenc(s, val);
else if(!strcmp(variable, "special_effect")) res = s->set_special_effect(s, val);
else if(!strcmp(variable, "wb_mode")) res = s->set_wb_mode(s, val);
else if(!strcmp(variable, "ae_level")) res = s->set_ae_level(s, val);
else if(!strcmp(variable, "face_detect")) {
detection_enabled = val;
if(!detection_enabled) {
recognition_enabled = 0;
}
}
else if(!strcmp(variable, "face_enroll")) is_enrolling = val;
else if(!strcmp(variable, "face_recognize")) {
recognition_enabled = val;
if(recognition_enabled){
detection_enabled = val;
}
}
else {
res = -1;
}
if(res){
return httpd_resp_send_500(req);
}
httpd_resp_set_hdr(req, "Access-Control-Allow-Origin", "*");
return httpd_resp_send(req, NULL, 0);
}
static esp_err_t status_handler(httpd_req_t *req){
static char json_response[1024];
sensor_t * s = esp_camera_sensor_get();
char * p = json_response;
*p++ = '{';
p+=sprintf(p, "\"framesize\":%u,", s->status.framesize);
p+=sprintf(p, "\"quality\":%u,", s->status.quality);
p+=sprintf(p, "\"brightness\":%d,", s->status.brightness);
p+=sprintf(p, "\"contrast\":%d,", s->status.contrast);
p+=sprintf(p, "\"saturation\":%d,", s->status.saturation);
p+=sprintf(p, "\"sharpness\":%d,", s->status.sharpness);
p+=sprintf(p, "\"special_effect\":%u,", s->status.special_effect);
p+=sprintf(p, "\"wb_mode\":%u,", s->status.wb_mode);
p+=sprintf(p, "\"awb\":%u,", s->status.awb);
p+=sprintf(p, "\"awb_gain\":%u,", s->status.awb_gain);
p+=sprintf(p, "\"aec\":%u,", s->status.aec);
p+=sprintf(p, "\"aec2\":%u,", s->status.aec2);
p+=sprintf(p, "\"ae_level\":%d,", s->status.ae_level);
p+=sprintf(p, "\"aec_value\":%u,", s->status.aec_value);
p+=sprintf(p, "\"agc\":%u,", s->status.agc);
p+=sprintf(p, "\"agc_gain\":%u,", s->status.agc_gain);
p+=sprintf(p, "\"gainceiling\":%u,", s->status.gainceiling);
p+=sprintf(p, "\"bpc\":%u,", s->status.bpc);
p+=sprintf(p, "\"wpc\":%u,", s->status.wpc);
p+=sprintf(p, "\"raw_gma\":%u,", s->status.raw_gma);
p+=sprintf(p, "\"lenc\":%u,", s->status.lenc);
p+=sprintf(p, "\"vflip\":%u,", s->status.vflip);
p+=sprintf(p, "\"hmirror\":%u,", s->status.hmirror);
p+=sprintf(p, "\"dcw\":%u,", s->status.dcw);
p+=sprintf(p, "\"colorbar\":%u,", s->status.colorbar);
p+=sprintf(p, "\"face_detect\":%u,", detection_enabled);
p+=sprintf(p, "\"face_enroll\":%u,", is_enrolling);
p+=sprintf(p, "\"face_recognize\":%u", recognition_enabled);
*p++ = '}';
*p++ = 0;
httpd_resp_set_type(req, "application/json");
httpd_resp_set_hdr(req, "Access-Control-Allow-Origin", "*");
return httpd_resp_send(req, json_response, strlen(json_response));
}
static esp_err_t index_handler(httpd_req_t *req){
httpd_resp_set_type(req, "text/html");
httpd_resp_set_hdr(req, "Content-Encoding", "gzip");
sensor_t * s = esp_camera_sensor_get();
if (s->id.PID == OV3660_PID) {
return httpd_resp_send(req, (const char *)index_ov3660_html_gz, index_ov3660_html_gz_len);
}
return httpd_resp_send(req, (const char *)index_ov2640_html_gz, index_ov2640_html_gz_len);
}
static esp_err_t gpio12On_handler(httpd_req_t *req){
Serial.println("ON, 12.port HIGH");
digitalWrite(12, HIGH);
return httpd_resp_send(req, NULL, 0);
}
static esp_err_t gpio12Off_handler(httpd_req_t *req){
Serial.println("OFF, 12.port LOW");
digitalWrite(12, LOW);
return httpd_resp_send(req, NULL, 0);
}
static esp_err_t gpio13On_handler(httpd_req_t *req){
Serial.println("ON, 13.port HIGH");
digitalWrite(13, HIGH);
return httpd_resp_send(req, NULL, 0);
}
static esp_err_t gpio13Off_handler(httpd_req_t *req){
Serial.println("OF, 13.port LOW");
digitalWrite(13, LOW);
return httpd_resp_send(req, NULL, 0);
}
void startCameraServer(){
httpd_config_t config = HTTPD_DEFAULT_CONFIG();
httpd_uri_t index_uri = {
.uri = "/",
.method = HTTP_GET,
.handler = index_handler,
.user_ctx = NULL
};
httpd_uri_t status_uri = {
.uri = "/status",
.method = HTTP_GET,
.handler = status_handler,
.user_ctx = NULL
};
httpd_uri_t cmd_uri = {
.uri = "/control",
.method = HTTP_GET,
.handler = cmd_handler,
.user_ctx = NULL
};
httpd_uri_t capture_uri = {
.uri = "/capture",
.method = HTTP_GET,
.handler = capture_handler,
.user_ctx = NULL
};
httpd_uri_t stream_uri = {
.uri = "/stream",
.method = HTTP_GET,
.handler = stream_handler,
.user_ctx = NULL
};
httpd_uri_t gpio12On_uri = {
.uri = "/gpio12On",
.method = HTTP_GET,
.handler = gpio12On_handler,
.user_ctx = NULL
};
httpd_uri_t gpio12Off_uri = {
.uri = "/gpio12Off",
.method = HTTP_GET,
.handler = gpio12Off_handler,
.user_ctx = NULL
};
httpd_uri_t gpio13On_uri = {
.uri = "/gpio13On",
.method = HTTP_GET,
.handler = gpio13On_handler,
.user_ctx = NULL
};
httpd_uri_t gpio13Off_uri = {
.uri = "/gpio13Off",
.method = HTTP_GET,
.handler = gpio13Off_handler,
.user_ctx = NULL
};
ra_filter_init(&ra_filter, 20);
mtmn_config.type = FAST;
mtmn_config.min_face = 80;
mtmn_config.pyramid = 0.707;
mtmn_config.pyramid_times = 4;
mtmn_config.p_threshold.score = 0.6;
mtmn_config.p_threshold.nms = 0.7;
mtmn_config.p_threshold.candidate_number = 20;
mtmn_config.r_threshold.score = 0.7;
mtmn_config.r_threshold.nms = 0.7;
mtmn_config.r_threshold.candidate_number = 10;
mtmn_config.o_threshold.score = 0.7;
mtmn_config.o_threshold.nms = 0.7;
mtmn_config.o_threshold.candidate_number = 1;
face_id_init(&id_list, FACE_ID_SAVE_NUMBER, ENROLL_CONFIRM_TIMES);
Serial.printf("Starting web server on port: '%d'\n", config.server_port);
if (httpd_start(&camera_httpd, &config) == ESP_OK) {
httpd_register_uri_handler(camera_httpd, &index_uri);
httpd_register_uri_handler(camera_httpd, &cmd_uri);
httpd_register_uri_handler(camera_httpd, &status_uri);
httpd_register_uri_handler(camera_httpd, &capture_uri);
}
config.server_port += 1;
config.ctrl_port += 1;
Serial.printf("Starting stream server on port: '%d'\n", config.server_port);
if (httpd_start(&stream_httpd, &config) == ESP_OK) {
httpd_register_uri_handler(stream_httpd, &stream_uri);
httpd_register_uri_handler(stream_httpd, &gpio12On_uri);
httpd_register_uri_handler(stream_httpd, &gpio12Off_uri);
httpd_register_uri_handler(stream_httpd, &gpio13On_uri);
httpd_register_uri_handler(stream_httpd, &gpio13Off_uri);
}
}