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1678
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1 // from https://raw.githubusercontent.com/RuiSantosdotme/ESP32-CAM-Arduino-IDE/master/ESP32-CAM-Video-Streaming/ESP32-CAM-Video-Streaming.ino
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2
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3
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4
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5 /*********
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6 Rui Santos
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7 Complete project details at https://RandomNerdTutorials.com/esp32-cam-video-streaming-web-server-camera-home-assistant/
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8
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9 IMPORTANT!!!
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10 - Select Board "AI Thinker ESP32-CAM"
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11 - GPIO 0 must be connected to GND to upload a sketch
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12 - After connecting GPIO 0 to GND, press the ESP32-CAM on-board RESET button to put your board in flashing mode
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13
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14 Permission is hereby granted, free of charge, to any person obtaining a copy
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15 of this software and associated documentation files.
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16
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17 The above copyright notice and this permission notice shall be included in all
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18 copies or substantial portions of the Software.
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19 *********/
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20
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21 #include "esp_camera.h"
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22 #include <WiFi.h>
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23 #include "esp_timer.h"
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24 #include "img_converters.h"
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25 #include "Arduino.h"
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26 #include "fb_gfx.h"
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27 #include "soc/soc.h" //disable brownout problems
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28 #include "soc/rtc_cntl_reg.h" //disable brownout problems
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29 #include "esp_http_server.h"
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30
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31 //Replace with your network credentials
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32 const char* ssid = "REPLACE_WITH_YOUR_SSID";
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33 const char* password = "REPLACE_WITH_YOUR_PASSWORD";
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34
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35 #define PART_BOUNDARY "123456789000000000000987654321"
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36
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37 // This project was tested with the AI Thinker Model, M5STACK PSRAM Model and M5STACK WITHOUT PSRAM
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38 #define CAMERA_MODEL_AI_THINKER
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39 //#define CAMERA_MODEL_M5STACK_PSRAM
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40 //#define CAMERA_MODEL_M5STACK_WITHOUT_PSRAM
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41
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42 // Not tested with this model
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43 //#define CAMERA_MODEL_WROVER_KIT
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44
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45 #if defined(CAMERA_MODEL_WROVER_KIT)
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46 #define PWDN_GPIO_NUM -1
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47 #define RESET_GPIO_NUM -1
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48 #define XCLK_GPIO_NUM 21
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49 #define SIOD_GPIO_NUM 26
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50 #define SIOC_GPIO_NUM 27
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51
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52 #define Y9_GPIO_NUM 35
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53 #define Y8_GPIO_NUM 34
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54 #define Y7_GPIO_NUM 39
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55 #define Y6_GPIO_NUM 36
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56 #define Y5_GPIO_NUM 19
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57 #define Y4_GPIO_NUM 18
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58 #define Y3_GPIO_NUM 5
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59 #define Y2_GPIO_NUM 4
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60 #define VSYNC_GPIO_NUM 25
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61 #define HREF_GPIO_NUM 23
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62 #define PCLK_GPIO_NUM 22
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63
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64 #elif defined(CAMERA_MODEL_M5STACK_PSRAM)
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65 #define PWDN_GPIO_NUM -1
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66 #define RESET_GPIO_NUM 15
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67 #define XCLK_GPIO_NUM 27
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68 #define SIOD_GPIO_NUM 25
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69 #define SIOC_GPIO_NUM 23
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70
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71 #define Y9_GPIO_NUM 19
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72 #define Y8_GPIO_NUM 36
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73 #define Y7_GPIO_NUM 18
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74 #define Y6_GPIO_NUM 39
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75 #define Y5_GPIO_NUM 5
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76 #define Y4_GPIO_NUM 34
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77 #define Y3_GPIO_NUM 35
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78 #define Y2_GPIO_NUM 32
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79 #define VSYNC_GPIO_NUM 22
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80 #define HREF_GPIO_NUM 26
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81 #define PCLK_GPIO_NUM 21
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82
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83 #elif defined(CAMERA_MODEL_M5STACK_WITHOUT_PSRAM)
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84 #define PWDN_GPIO_NUM -1
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85 #define RESET_GPIO_NUM 15
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86 #define XCLK_GPIO_NUM 27
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87 #define SIOD_GPIO_NUM 25
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88 #define SIOC_GPIO_NUM 23
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89
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90 #define Y9_GPIO_NUM 19
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91 #define Y8_GPIO_NUM 36
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92 #define Y7_GPIO_NUM 18
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93 #define Y6_GPIO_NUM 39
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94 #define Y5_GPIO_NUM 5
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95 #define Y4_GPIO_NUM 34
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96 #define Y3_GPIO_NUM 35
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97 #define Y2_GPIO_NUM 17
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98 #define VSYNC_GPIO_NUM 22
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99 #define HREF_GPIO_NUM 26
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100 #define PCLK_GPIO_NUM 21
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101
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102 #elif defined(CAMERA_MODEL_AI_THINKER)
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103 #define PWDN_GPIO_NUM 32
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104 #define RESET_GPIO_NUM -1
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105 #define XCLK_GPIO_NUM 0
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106 #define SIOD_GPIO_NUM 26
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107 #define SIOC_GPIO_NUM 27
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108
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109 #define Y9_GPIO_NUM 35
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110 #define Y8_GPIO_NUM 34
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111 #define Y7_GPIO_NUM 39
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112 #define Y6_GPIO_NUM 36
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113 #define Y5_GPIO_NUM 21
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114 #define Y4_GPIO_NUM 19
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115 #define Y3_GPIO_NUM 18
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116 #define Y2_GPIO_NUM 5
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117 #define VSYNC_GPIO_NUM 25
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118 #define HREF_GPIO_NUM 23
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119 #define PCLK_GPIO_NUM 22
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120 #else
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121 #error "Camera model not selected"
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122 #endif
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123
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124 static const char* _STREAM_CONTENT_TYPE = "multipart/x-mixed-replace;boundary=" PART_BOUNDARY;
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125 static const char* _STREAM_BOUNDARY = "\r\n--" PART_BOUNDARY "\r\n";
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126 static const char* _STREAM_PART = "Content-Type: image/jpeg\r\nContent-Length: %u\r\n\r\n";
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127
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128 httpd_handle_t stream_httpd = NULL;
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129
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130 static esp_err_t stream_handler(httpd_req_t *req){
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131 camera_fb_t * fb = NULL;
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132 esp_err_t res = ESP_OK;
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133 size_t _jpg_buf_len = 0;
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134 uint8_t * _jpg_buf = NULL;
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135 char * part_buf[64];
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136
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137 res = httpd_resp_set_type(req, _STREAM_CONTENT_TYPE);
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138 if(res != ESP_OK){
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139 return res;
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140 }
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141
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142 // https://github.com/RuiSantosdotme/ESP32-CAM-Arduino-IDE/pull/4
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143 res = httpd_resp_send_chunk(req, _STREAM_BOUNDARY, strlen(_STREAM_BOUNDARY));
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144 if(res != ESP_OK){
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145 return res;
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146 }
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147
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148 while(true){
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149 fb = esp_camera_fb_get();
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150 if (!fb) {
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151 Serial.println("Camera capture failed");
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152 res = ESP_FAIL;
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153 } else {
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154 if(fb->width > 400){
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155 if(fb->format != PIXFORMAT_JPEG){
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156 bool jpeg_converted = frame2jpg(fb, 80, &_jpg_buf, &_jpg_buf_len);
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157 esp_camera_fb_return(fb);
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158 fb = NULL;
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159 if(!jpeg_converted){
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160 Serial.println("JPEG compression failed");
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161 res = ESP_FAIL;
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162 }
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163 } else {
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164 _jpg_buf_len = fb->len;
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165 _jpg_buf = fb->buf;
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166 }
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167 }
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168 }
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169 if(res == ESP_OK){
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170 size_t hlen = snprintf((char *)part_buf, 64, _STREAM_PART, _jpg_buf_len);
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171 res = httpd_resp_send_chunk(req, (const char *)part_buf, hlen);
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172 }
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173 if(res == ESP_OK){
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174 res = httpd_resp_send_chunk(req, (const char *)_jpg_buf, _jpg_buf_len);
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175 }
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176 if(res == ESP_OK){
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177 res = httpd_resp_send_chunk(req, _STREAM_BOUNDARY, strlen(_STREAM_BOUNDARY));
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178 }
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179 if(fb){
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180 esp_camera_fb_return(fb);
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181 fb = NULL;
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182 _jpg_buf = NULL;
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183 } else if(_jpg_buf){
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184 free(_jpg_buf);
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185 _jpg_buf = NULL;
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186 }
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187 if(res != ESP_OK){
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188 break;
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189 }
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190 //Serial.printf("MJPG: %uB\n",(uint32_t)(_jpg_buf_len));
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191 }
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192 return res;
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193 }
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194
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195 void startCameraServer(){
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196 httpd_config_t config = HTTPD_DEFAULT_CONFIG();
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197 config.server_port = 80;
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198
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199 httpd_uri_t index_uri = {
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200 .uri = "/",
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201 .method = HTTP_GET,
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202 .handler = stream_handler,
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203 .user_ctx = NULL
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204 };
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205
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206 //Serial.printf("Starting web server on port: '%d'\n", config.server_port);
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207 if (httpd_start(&stream_httpd, &config) == ESP_OK) {
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208 httpd_register_uri_handler(stream_httpd, &index_uri);
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209 }
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210 }
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211
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212 void cam_setup() {
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213 WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 0); //disable brownout detector
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214
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215 Serial.begin(115200);
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216 Serial.setDebugOutput(false);
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217
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218 camera_config_t config;
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219 config.ledc_channel = LEDC_CHANNEL_0;
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220 config.ledc_timer = LEDC_TIMER_0;
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221 config.pin_d0 = Y2_GPIO_NUM;
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222 config.pin_d1 = Y3_GPIO_NUM;
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223 config.pin_d2 = Y4_GPIO_NUM;
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224 config.pin_d3 = Y5_GPIO_NUM;
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225 config.pin_d4 = Y6_GPIO_NUM;
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226 config.pin_d5 = Y7_GPIO_NUM;
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227 config.pin_d6 = Y8_GPIO_NUM;
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228 config.pin_d7 = Y9_GPIO_NUM;
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229 config.pin_xclk = XCLK_GPIO_NUM;
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230 config.pin_pclk = PCLK_GPIO_NUM;
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231 config.pin_vsync = VSYNC_GPIO_NUM;
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232 config.pin_href = HREF_GPIO_NUM;
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233 config.pin_sscb_sda = SIOD_GPIO_NUM;
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234 config.pin_sscb_scl = SIOC_GPIO_NUM;
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235 config.pin_pwdn = PWDN_GPIO_NUM;
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236 config.pin_reset = RESET_GPIO_NUM;
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237 config.xclk_freq_hz = 20000000;
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238 config.pixel_format = PIXFORMAT_JPEG;
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239
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240 if(psramFound()){
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241 config.frame_size = FRAMESIZE_UXGA;
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242 config.jpeg_quality = 10;
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243 config.fb_count = 2;
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244 } else {
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245 config.frame_size = FRAMESIZE_SVGA;
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246 config.jpeg_quality = 12;
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247 config.fb_count = 1;
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248 }
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249
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250 // Camera init
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251 esp_err_t err = esp_camera_init(&config);
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252 if (err != ESP_OK) {
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253 Serial.printf("Camera init failed with error 0x%x", err);
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254 return;
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255 }
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256
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257 // Start streaming web server
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258 startCameraServer();
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259 }
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