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app_httpd.cpp
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// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "esp_http_server.h"
#include "esp_timer.h"
#include "esp_camera.h"
#include "img_converters.h"
#include "fb_gfx.h"
#include "esp32-hal-ledc.h"
#include "sdkconfig.h"
#include "camera_index.h"
#if defined(ARDUINO_ARCH_ESP32) && defined(CONFIG_ARDUHAL_ESP_LOG)
#include "esp32-hal-log.h"
#endif
// Face Detection will not work on boards without (or with disabled) PSRAM
#ifdef BOARD_HAS_PSRAM
// Face Recognition takes upward from 15 seconds per frame on chips other than ESP32S3
// Makes no sense to have it enabled for them
#if CONFIG_IDF_TARGET_ESP32S3
#define CONFIG_ESP_FACE_RECOGNITION_ENABLED 1
#define CONFIG_ESP_FACE_DETECT_ENABLED 1
#else
#define CONFIG_ESP_FACE_RECOGNITION_ENABLED 0
#define CONFIG_ESP_FACE_DETECT_ENABLED 0
#endif
#else
#define CONFIG_ESP_FACE_DETECT_ENABLED 0
#define CONFIG_ESP_FACE_RECOGNITION_ENABLED 0
#endif
#if CONFIG_ESP_FACE_DETECT_ENABLED
#include <vector>
#include "human_face_detect_msr01.hpp"
#include "human_face_detect_mnp01.hpp"
#define TWO_STAGE 1 /*<! 1: detect by two-stage which is more accurate but slower(with keypoints). */
/*<! 0: detect by one-stage which is less accurate but faster(without keypoints). */
#if CONFIG_ESP_FACE_RECOGNITION_ENABLED
#pragma GCC diagnostic ignored "-Wformat"
#pragma GCC diagnostic ignored "-Wstrict-aliasing"
#include "face_recognition_tool.hpp"
#include "face_recognition_112_v1_s16.hpp"
#include "face_recognition_112_v1_s8.hpp"
#pragma GCC diagnostic error "-Wformat"
#pragma GCC diagnostic warning "-Wstrict-aliasing"
#define QUANT_TYPE 0 //if set to 1 => very large firmware, very slow, reboots when streaming...
#define FACE_ID_SAVE_NUMBER 7
#endif
#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)
#endif
// Enable LED FLASH setting
#define CONFIG_LED_ILLUMINATOR_ENABLED 1
// LED FLASH setup
#if CONFIG_LED_ILLUMINATOR_ENABLED
#define LED_LEDC_GPIO 22 //configure LED pin
#define CONFIG_LED_MAX_INTENSITY 255
int led_duty = 0;
bool isStreaming = false;
#endif
typedef struct {
httpd_req_t *req;
size_t len;
} jpg_chunking_t;
#define PART_BOUNDARY "123456789000000000000987654321" // If you going to change this, update your .env file in aggregator
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\nX-Timestamp: %d.%06d\r\n\r\n";
httpd_handle_t stream_httpd = NULL;
httpd_handle_t camera_httpd = NULL;
#if CONFIG_ESP_FACE_DETECT_ENABLED
static int8_t detection_enabled = 0;
// #if TWO_STAGE
// static HumanFaceDetectMSR01 s1(0.1F, 0.5F, 10, 0.2F);
// static HumanFaceDetectMNP01 s2(0.5F, 0.3F, 5);
// #else
// static HumanFaceDetectMSR01 s1(0.3F, 0.5F, 10, 0.2F);
// #endif
#if CONFIG_ESP_FACE_RECOGNITION_ENABLED
static int8_t recognition_enabled = 0;
static int8_t is_enrolling = 0;
#if QUANT_TYPE
// S16 model
FaceRecognition112V1S16 recognizer;
#else
// S8 model
FaceRecognition112V1S8 recognizer;
#endif
#endif
#endif
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;
static ra_filter_t ra_filter;
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;
}
#if ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_INFO
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;
}
#endif
#if CONFIG_ESP_FACE_DETECT_ENABLED
#if CONFIG_ESP_FACE_RECOGNITION_ENABLED
static void rgb_print(fb_data_t *fb, uint32_t color, const char *str) {
fb_gfx_print(fb, (fb->width - (strlen(str) * 14)) / 2, 10, color, str);
}
static int rgb_printf(fb_data_t *fb, 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(fb, color, temp);
if (len > 64) {
free(temp);
}
return len;
}
#endif
static void draw_face_boxes(fb_data_t *fb, std::list<dl::detect::result_t> *results, int face_id) {
int x, y, w, h;
uint32_t color = FACE_COLOR_YELLOW;
if (face_id < 0) {
color = FACE_COLOR_RED;
} else if (face_id > 0) {
color = FACE_COLOR_GREEN;
}
if (fb->bytes_per_pixel == 2) {
//color = ((color >> 8) & 0xF800) | ((color >> 3) & 0x07E0) | (color & 0x001F);
color = ((color >> 16) & 0x001F) | ((color >> 3) & 0x07E0) | ((color << 8) & 0xF800);
}
int i = 0;
for (std::list<dl::detect::result_t>::iterator prediction = results->begin(); prediction != results->end(); prediction++, i++) {
// rectangle box
x = (int)prediction->box[0];
y = (int)prediction->box[1];
w = (int)prediction->box[2] - x + 1;
h = (int)prediction->box[3] - y + 1;
if ((x + w) > fb->width) {
w = fb->width - x;
}
if ((y + h) > fb->height) {
h = fb->height - y;
}
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 TWO_STAGE
// landmarks (left eye, mouth left, nose, right eye, mouth right)
int x0, y0, j;
for (j = 0; j < 10; j += 2) {
x0 = (int)prediction->keypoint[j];
y0 = (int)prediction->keypoint[j + 1];
fb_gfx_fillRect(fb, x0, y0, 3, 3, color);
}
#endif
}
}
#if CONFIG_ESP_FACE_RECOGNITION_ENABLED
static int run_face_recognition(fb_data_t *fb, std::list<dl::detect::result_t> *results) {
std::vector<int> landmarks = results->front().keypoint;
int id = -1;
Tensor<uint8_t> tensor;
tensor.set_element((uint8_t *)fb->data).set_shape({fb->height, fb->width, 3}).set_auto_free(false);
int enrolled_count = recognizer.get_enrolled_id_num();
if (enrolled_count < FACE_ID_SAVE_NUMBER && is_enrolling) {
id = recognizer.enroll_id(tensor, landmarks, "", true);
log_i("Enrolled ID: %d", id);
rgb_printf(fb, FACE_COLOR_CYAN, "ID[%u]", id);
}
face_info_t recognize = recognizer.recognize(tensor, landmarks);
if (recognize.id >= 0) {
rgb_printf(fb, FACE_COLOR_GREEN, "ID[%u]: %.2f", recognize.id, recognize.similarity);
} else {
rgb_print(fb, FACE_COLOR_RED, "Intruder Alert!");
}
return recognize.id;
}
#endif
#endif
#if CONFIG_LED_ILLUMINATOR_ENABLED
void enable_led(bool en) { // Turn LED On or Off
int duty = en ? led_duty : 0;
if (en && isStreaming && (led_duty > CONFIG_LED_MAX_INTENSITY)) {
duty = CONFIG_LED_MAX_INTENSITY;
}
ledcWrite(LED_LEDC_GPIO, duty);
//ledc_set_duty(CONFIG_LED_LEDC_SPEED_MODE, CONFIG_LED_LEDC_CHANNEL, duty);
//ledc_update_duty(CONFIG_LED_LEDC_SPEED_MODE, CONFIG_LED_LEDC_CHANNEL);
log_i("Set LED intensity to %d", duty);
}
#endif
static esp_err_t bmp_handler(httpd_req_t *req) {
camera_fb_t *fb = NULL;
esp_err_t res = ESP_OK;
#if ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_INFO
uint64_t fr_start = esp_timer_get_time();
#endif
fb = esp_camera_fb_get();
if (!fb) {
log_e("Camera capture failed");
httpd_resp_send_500(req);
return ESP_FAIL;
}
httpd_resp_set_type(req, "image/x-windows-bmp");
httpd_resp_set_hdr(req, "Content-Disposition", "inline; filename=capture.bmp");
httpd_resp_set_hdr(req, "Access-Control-Allow-Origin", "*");
char ts[32];
snprintf(ts, 32, "%lld.%06ld", fb->timestamp.tv_sec, fb->timestamp.tv_usec);
httpd_resp_set_hdr(req, "X-Timestamp", (const char *)ts);
uint8_t *buf = NULL;
size_t buf_len = 0;
bool converted = frame2bmp(fb, &buf, &buf_len);
esp_camera_fb_return(fb);
if (!converted) {
log_e("BMP Conversion failed");
httpd_resp_send_500(req);
return ESP_FAIL;
}
res = httpd_resp_send(req, (const char *)buf, buf_len);
free(buf);
#if ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_INFO
uint64_t fr_end = esp_timer_get_time();
#endif
log_i("BMP: %llums, %uB", (uint64_t)((fr_end - fr_start) / 1000), buf_len);
return res;
}
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;
#if ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_INFO
int64_t fr_start = esp_timer_get_time();
#endif
#if CONFIG_LED_ILLUMINATOR_ENABLED
enable_led(true);
vTaskDelay(150 / portTICK_PERIOD_MS); // The LED needs to be turned on ~150ms before the call to esp_camera_fb_get()
fb = esp_camera_fb_get(); // or it won't be visible in the frame. A better way to do this is needed.
enable_led(false);
#else
fb = esp_camera_fb_get();
#endif
if (!fb) {
log_e("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", "*");
char ts[32];
snprintf(ts, 32, "%lld.%06ld", fb->timestamp.tv_sec, fb->timestamp.tv_usec);
httpd_resp_set_hdr(req, "X-Timestamp", (const char *)ts);
#if CONFIG_ESP_FACE_DETECT_ENABLED
size_t out_len, out_width, out_height;
uint8_t *out_buf;
bool s;
#if ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_INFO
bool detected = false;
#endif
int face_id = 0;
if (!detection_enabled || fb->width > 400) {
#endif
#if ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_INFO
size_t fb_len = 0;
#endif
if (fb->format == PIXFORMAT_JPEG) {
#if ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_INFO
fb_len = fb->len;
#endif
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);
#if ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_INFO
fb_len = jchunk.len;
#endif
}
esp_camera_fb_return(fb);
#if ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_INFO
int64_t fr_end = esp_timer_get_time();
#endif
log_i("JPG: %uB %ums", (uint32_t)(fb_len), (uint32_t)((fr_end - fr_start) / 1000));
return res;
#if CONFIG_ESP_FACE_DETECT_ENABLED
}
jpg_chunking_t jchunk = {req, 0};
if (fb->format == PIXFORMAT_RGB565
#if CONFIG_ESP_FACE_RECOGNITION_ENABLED
&& !recognition_enabled
#endif
) {
#if TWO_STAGE
HumanFaceDetectMSR01 s1(0.1F, 0.5F, 10, 0.2F);
HumanFaceDetectMNP01 s2(0.5F, 0.3F, 5);
std::list<dl::detect::result_t> &candidates = s1.infer((uint16_t *)fb->buf, {(int)fb->height, (int)fb->width, 3});
std::list<dl::detect::result_t> &results = s2.infer((uint16_t *)fb->buf, {(int)fb->height, (int)fb->width, 3}, candidates);
#else
HumanFaceDetectMSR01 s1(0.3F, 0.5F, 10, 0.2F);
std::list<dl::detect::result_t> &results = s1.infer((uint16_t *)fb->buf, {(int)fb->height, (int)fb->width, 3});
#endif
if (results.size() > 0) {
fb_data_t rfb;
rfb.width = fb->width;
rfb.height = fb->height;
rfb.data = fb->buf;
rfb.bytes_per_pixel = 2;
rfb.format = FB_RGB565;
#if ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_INFO
detected = true;
#endif
draw_face_boxes(&rfb, &results, face_id);
}
s = fmt2jpg_cb(fb->buf, fb->len, fb->width, fb->height, PIXFORMAT_RGB565, 90, jpg_encode_stream, &jchunk);
esp_camera_fb_return(fb);
} else {
out_len = fb->width * fb->height * 3;
out_width = fb->width;
out_height = fb->height;
out_buf = (uint8_t *)malloc(out_len);
if (!out_buf) {
log_e("out_buf malloc failed");
httpd_resp_send_500(req);
return ESP_FAIL;
}
s = fmt2rgb888(fb->buf, fb->len, fb->format, out_buf);
esp_camera_fb_return(fb);
if (!s) {
free(out_buf);
log_e("To rgb888 failed");
httpd_resp_send_500(req);
return ESP_FAIL;
}
fb_data_t rfb;
rfb.width = out_width;
rfb.height = out_height;
rfb.data = out_buf;
rfb.bytes_per_pixel = 3;
rfb.format = FB_BGR888;
#if TWO_STAGE
HumanFaceDetectMSR01 s1(0.1F, 0.5F, 10, 0.2F);
HumanFaceDetectMNP01 s2(0.5F, 0.3F, 5);
std::list<dl::detect::result_t> &candidates = s1.infer((uint8_t *)out_buf, {(int)out_height, (int)out_width, 3});
std::list<dl::detect::result_t> &results = s2.infer((uint8_t *)out_buf, {(int)out_height, (int)out_width, 3}, candidates);
#else
HumanFaceDetectMSR01 s1(0.3F, 0.5F, 10, 0.2F);
std::list<dl::detect::result_t> &results = s1.infer((uint8_t *)out_buf, {(int)out_height, (int)out_width, 3});
#endif
if (results.size() > 0) {
#if ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_INFO
detected = true;
#endif
#if CONFIG_ESP_FACE_RECOGNITION_ENABLED
if (recognition_enabled) {
face_id = run_face_recognition(&rfb, &results);
}
#endif
draw_face_boxes(&rfb, &results, face_id);
}
s = fmt2jpg_cb(out_buf, out_len, out_width, out_height, PIXFORMAT_RGB888, 90, jpg_encode_stream, &jchunk);
free(out_buf);
}
if (!s) {
log_e("JPEG compression failed");
httpd_resp_send_500(req);
return ESP_FAIL;
}
#if ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_INFO
int64_t fr_end = esp_timer_get_time();
#endif
log_i("FACE: %uB %ums %s%d", (uint32_t)(jchunk.len), (uint32_t)((fr_end - fr_start) / 1000), detected ? "DETECTED " : "", face_id);
return res;
#endif
}
static esp_err_t stream_handler(httpd_req_t *req) {
camera_fb_t *fb = NULL;
struct timeval _timestamp;
esp_err_t res = ESP_OK;
size_t _jpg_buf_len = 0;
uint8_t *_jpg_buf = NULL;
char *part_buf[128];
#if CONFIG_ESP_FACE_DETECT_ENABLED
#if ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_INFO
bool detected = false;
int64_t fr_ready = 0;
int64_t fr_recognize = 0;
int64_t fr_encode = 0;
int64_t fr_face = 0;
int64_t fr_start = 0;
#endif
int face_id = 0;
size_t out_len = 0, out_width = 0, out_height = 0;
uint8_t *out_buf = NULL;
bool s = false;
#if TWO_STAGE
HumanFaceDetectMSR01 s1(0.1F, 0.5F, 10, 0.2F);
HumanFaceDetectMNP01 s2(0.5F, 0.3F, 5);
#else
HumanFaceDetectMSR01 s1(0.3F, 0.5F, 10, 0.2F);
#endif
#endif
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", "*");
httpd_resp_set_hdr(req, "X-Framerate", "60");
#if CONFIG_LED_ILLUMINATOR_ENABLED
isStreaming = true;
enable_led(true);
#endif
while (true) {
#if CONFIG_ESP_FACE_DETECT_ENABLED
#if ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_INFO
detected = false;
#endif
face_id = 0;
#endif
fb = esp_camera_fb_get();
if (!fb) {
log_e("Camera capture failed");
res = ESP_FAIL;
} else {
_timestamp.tv_sec = fb->timestamp.tv_sec;
_timestamp.tv_usec = fb->timestamp.tv_usec;
#if CONFIG_ESP_FACE_DETECT_ENABLED
#if ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_INFO
fr_start = esp_timer_get_time();
fr_ready = fr_start;
fr_encode = fr_start;
fr_recognize = fr_start;
fr_face = fr_start;
#endif
if (!detection_enabled || fb->width > 400) {
#endif
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) {
log_e("JPEG compression failed");
res = ESP_FAIL;
}
} else {
_jpg_buf_len = fb->len;
_jpg_buf = fb->buf;
}
#if CONFIG_ESP_FACE_DETECT_ENABLED
} else {
if (fb->format == PIXFORMAT_RGB565
#if CONFIG_ESP_FACE_RECOGNITION_ENABLED
&& !recognition_enabled
#endif
) {
#if ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_INFO
fr_ready = esp_timer_get_time();
#endif
#if TWO_STAGE
std::list<dl::detect::result_t> &candidates = s1.infer((uint16_t *)fb->buf, {(int)fb->height, (int)fb->width, 3});
std::list<dl::detect::result_t> &results = s2.infer((uint16_t *)fb->buf, {(int)fb->height, (int)fb->width, 3}, candidates);
#else
std::list<dl::detect::result_t> &results = s1.infer((uint16_t *)fb->buf, {(int)fb->height, (int)fb->width, 3});
#endif
#if CONFIG_ESP_FACE_DETECT_ENABLED && ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_INFO
fr_face = esp_timer_get_time();
fr_recognize = fr_face;
#endif
if (results.size() > 0) {
fb_data_t rfb;
rfb.width = fb->width;
rfb.height = fb->height;
rfb.data = fb->buf;
rfb.bytes_per_pixel = 2;
rfb.format = FB_RGB565;
#if ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_INFO
detected = true;
#endif
draw_face_boxes(&rfb, &results, face_id);
}
s = fmt2jpg(fb->buf, fb->len, fb->width, fb->height, PIXFORMAT_RGB565, 80, &_jpg_buf, &_jpg_buf_len);
esp_camera_fb_return(fb);
fb = NULL;
if (!s) {
log_e("fmt2jpg failed");
res = ESP_FAIL;
}
#if CONFIG_ESP_FACE_DETECT_ENABLED && ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_INFO
fr_encode = esp_timer_get_time();
#endif
} else {
out_len = fb->width * fb->height * 3;
out_width = fb->width;
out_height = fb->height;
out_buf = (uint8_t *)malloc(out_len);
if (!out_buf) {
log_e("out_buf malloc failed");
res = ESP_FAIL;
} else {
s = fmt2rgb888(fb->buf, fb->len, fb->format, out_buf);
esp_camera_fb_return(fb);
fb = NULL;
if (!s) {
free(out_buf);
log_e("To rgb888 failed");
res = ESP_FAIL;
} else {
#if ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_INFO
fr_ready = esp_timer_get_time();
#endif
fb_data_t rfb;
rfb.width = out_width;
rfb.height = out_height;
rfb.data = out_buf;
rfb.bytes_per_pixel = 3;
rfb.format = FB_BGR888;
#if TWO_STAGE
std::list<dl::detect::result_t> &candidates = s1.infer((uint8_t *)out_buf, {(int)out_height, (int)out_width, 3});
std::list<dl::detect::result_t> &results = s2.infer((uint8_t *)out_buf, {(int)out_height, (int)out_width, 3}, candidates);
#else
std::list<dl::detect::result_t> &results = s1.infer((uint8_t *)out_buf, {(int)out_height, (int)out_width, 3});
#endif
#if CONFIG_ESP_FACE_DETECT_ENABLED && ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_INFO
fr_face = esp_timer_get_time();
fr_recognize = fr_face;
#endif
if (results.size() > 0) {
#if ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_INFO
detected = true;
#endif
#if CONFIG_ESP_FACE_RECOGNITION_ENABLED
if (recognition_enabled) {
face_id = run_face_recognition(&rfb, &results);
#if ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_INFO
fr_recognize = esp_timer_get_time();
#endif
}
#endif
draw_face_boxes(&rfb, &results, face_id);
}
s = fmt2jpg(out_buf, out_len, out_width, out_height, PIXFORMAT_RGB888, 90, &_jpg_buf, &_jpg_buf_len);
free(out_buf);
if (!s) {
log_e("fmt2jpg failed");
res = ESP_FAIL;
}
#if CONFIG_ESP_FACE_DETECT_ENABLED && ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_INFO
fr_encode = esp_timer_get_time();
#endif
}
}
}
}
#endif
}
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, 128, _STREAM_PART, _jpg_buf_len, _timestamp.tv_sec, _timestamp.tv_usec);
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) {
log_e("Send frame failed");
break;
}
int64_t fr_end = esp_timer_get_time();
#if CONFIG_ESP_FACE_DETECT_ENABLED && ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_INFO
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;
#endif
int64_t frame_time = fr_end - last_frame;
frame_time /= 1000;
#if ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_INFO
uint32_t avg_frame_time = ra_filter_run(&ra_filter, frame_time);
#endif
log_i(
"MJPG: %uB %ums (%.1ffps), AVG: %ums (%.1ffps)"
#if CONFIG_ESP_FACE_DETECT_ENABLED
", %u+%u+%u+%u=%u %s%d"
#endif
,
(uint32_t)(_jpg_buf_len), (uint32_t)frame_time, 1000.0 / (uint32_t)frame_time, avg_frame_time, 1000.0 / avg_frame_time
#if CONFIG_ESP_FACE_DETECT_ENABLED
,
(uint32_t)ready_time, (uint32_t)face_time, (uint32_t)recognize_time, (uint32_t)encode_time, (uint32_t)process_time, (detected) ? "DETECTED " : "", face_id
#endif
);
}
#if CONFIG_LED_ILLUMINATOR_ENABLED
isStreaming = false;
enable_led(false);
#endif
return res;
}
static esp_err_t parse_get(httpd_req_t *req, char **obuf) {
char *buf = NULL;
size_t buf_len = 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) {
*obuf = buf;
return ESP_OK;
}
free(buf);
}
httpd_resp_send_404(req);
return ESP_FAIL;
}
static esp_err_t cmd_handler(httpd_req_t *req) {
char *buf = NULL;
char variable[32];
char value[32];
if (parse_get(req, &buf) != ESP_OK) {
return ESP_FAIL;
}
if (httpd_query_key_value(buf, "var", variable, sizeof(variable)) != ESP_OK || httpd_query_key_value(buf, "val", value, sizeof(value)) != ESP_OK) {
free(buf);
httpd_resp_send_404(req);
return ESP_FAIL;
}
free(buf);
int val = atoi(value);
log_i("%s = %d", variable, val);
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);
}
#if CONFIG_LED_ILLUMINATOR_ENABLED
else if (!strcmp(variable, "led_intensity")) {
led_duty = val;
if (isStreaming) {
enable_led(true);
}
}
#endif
#if CONFIG_ESP_FACE_DETECT_ENABLED
else if (!strcmp(variable, "face_detect")) {
detection_enabled = val;
#if CONFIG_ESP_FACE_RECOGNITION_ENABLED
if (!detection_enabled) {
recognition_enabled = 0;
}
#endif
}
#if CONFIG_ESP_FACE_RECOGNITION_ENABLED
else if (!strcmp(variable, "face_enroll")) {
is_enrolling = !is_enrolling;
log_i("Enrolling: %s", is_enrolling ? "true" : "false");
} else if (!strcmp(variable, "face_recognize")) {
recognition_enabled = val;
if (recognition_enabled) {
detection_enabled = val;
}
}
#endif
#endif
else {
log_i("Unknown command: %s", variable);
res = -1;
}
if (res < 0) {
return httpd_resp_send_500(req);
}
httpd_resp_set_hdr(req, "Access-Control-Allow-Origin", "*");
return httpd_resp_send(req, NULL, 0);
}
static int print_reg(char *p, sensor_t *s, uint16_t reg, uint32_t mask) {
return sprintf(p, "\"0x%x\":%u,", reg, s->get_reg(s, reg, mask));
}
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++ = '{';
if (s->id.PID == OV5640_PID || s->id.PID == OV3660_PID) {
for (int reg = 0x3400; reg < 0x3406; reg += 2) {
p += print_reg(p, s, reg, 0xFFF); //12 bit
}
p += print_reg(p, s, 0x3406, 0xFF);
p += print_reg(p, s, 0x3500, 0xFFFF0); //16 bit
p += print_reg(p, s, 0x3503, 0xFF);
p += print_reg(p, s, 0x350a, 0x3FF); //10 bit
p += print_reg(p, s, 0x350c, 0xFFFF); //16 bit
for (int reg = 0x5480; reg <= 0x5490; reg++) {
p += print_reg(p, s, reg, 0xFF);
}
for (int reg = 0x5380; reg <= 0x538b; reg++) {
p += print_reg(p, s, reg, 0xFF);
}
for (int reg = 0x5580; reg < 0x558a; reg++) {
p += print_reg(p, s, reg, 0xFF);
}
p += print_reg(p, s, 0x558a, 0x1FF); //9 bit
} else if (s->id.PID == OV2640_PID) {
p += print_reg(p, s, 0xd3, 0xFF);
p += print_reg(p, s, 0x111, 0xFF);
p += print_reg(p, s, 0x132, 0xFF);
}
p += sprintf(p, "\"xclk\":%u,", s->xclk_freq_hz / 1000000);
p += sprintf(p, "\"pixformat\":%u,", s->pixformat);
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, "\"hmirror\":%u,", s->status.hmirror);
p += sprintf(p, "\"dcw\":%u,", s->status.dcw);
p += sprintf(p, "\"colorbar\":%u", s->status.colorbar);
#if CONFIG_LED_ILLUMINATOR_ENABLED
p += sprintf(p, ",\"led_intensity\":%u", led_duty);
#else
p += sprintf(p, ",\"led_intensity\":%d", -1);
#endif
#if CONFIG_ESP_FACE_DETECT_ENABLED
p += sprintf(p, ",\"face_detect\":%u", detection_enabled);
#if CONFIG_ESP_FACE_RECOGNITION_ENABLED
p += sprintf(p, ",\"face_enroll\":%u,", is_enrolling);
p += sprintf(p, "\"face_recognize\":%u", recognition_enabled);
#endif
#endif
*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 xclk_handler(httpd_req_t *req) {
char *buf = NULL;
char _xclk[32];
if (parse_get(req, &buf) != ESP_OK) {
return ESP_FAIL;
}
if (httpd_query_key_value(buf, "xclk", _xclk, sizeof(_xclk)) != ESP_OK) {
free(buf);
httpd_resp_send_404(req);
return ESP_FAIL;
}
free(buf);
int xclk = atoi(_xclk);
log_i("Set XCLK: %d MHz", xclk);
sensor_t *s = esp_camera_sensor_get();
int res = s->set_xclk(s, LEDC_TIMER_0, xclk);
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 reg_handler(httpd_req_t *req) {
char *buf = NULL;
char _reg[32];
char _mask[32];
char _val[32];
if (parse_get(req, &buf) != ESP_OK) {
return ESP_FAIL;
}