add CMakeLists.txt

CMakeLists.txt

@@ -0,0 +1,12 @@
+# The following lines of boilerplate have to be in your project's
+# CMakeLists in this exact order for cmake to work correctly
+cmake_minimum_required(VERSION 3.5)
+
+set(EXTRA_COMPONENT_DIRS ../../../components)
+
+# (Not part of the boilerplate)
+# This example uses an extra component for common functions such as Wi-Fi and Ethernet connection.
+set(EXTRA_COMPONENT_DIRS $ENV{IDF_PATH}/examples/common_components/protocol_examples_common)
+
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+project(esp32-cam-demo)

components/camera/CMakeLists.txt

@@ -0,0 +1,7 @@
+set(COMPONENT_SRCS
+    bitmap.c
+    )
+
+set(COMPONENT_ADD_INCLUDEDIRS include)
+
+register_component()

components/camera/bitmap.c

@@ -9,7 +9,8 @@ bitmap_header_t *bmp_create_header(int w, int h)
 	bitmap_header_t *pbitmap  = (bitmap_header_t*)calloc(1, sizeof(bitmap_header_t));
 	int _pixelbytesize = w * h * _bitsperpixel/8;
 	int _filesize = _pixelbytesize+sizeof(bitmap_header_t);
-	strcpy((char*)pbitmap->fileheader.signature, "BM");
+    pbitmap->fileheader.signature[0] = 'B';
+    pbitmap->fileheader.signature[1] = 'M';
 	pbitmap->fileheader.filesize = _filesize;
 	pbitmap->fileheader.fileoffset_to_pixelarray = sizeof(bitmap_header_t);
 	pbitmap->bitmapinfoheader.dibheadersize = sizeof(bitmapinfoheader);

main/CMakeLists.txt

@@ -0,0 +1,11 @@
+set(COMPONENT_SRCS "app_main.c")
+
+set(COMPONENT_REQUIRES
+    esp32-camera
+    nvs_flash
+    esp_http_server
+    camera
+    protocol_examples_common
+    )
+
+register_component()

main/app_main.c

@@ -389,9 +389,13 @@ static esp_err_t handle_jpg(httpd_req_t *req)
 {
     esp_err_t err = ESP_OK;
 
+    uint64_t us_start = (uint64_t) esp_timer_get_time();
+
     //acquire a frame
     camera_fb_t * fb = esp_camera_fb_get();
 
+    uint64_t us_capture = (uint64_t) esp_timer_get_time();
+
     if (!fb) {
         ESP_LOGE(TAG, "Camera Capture Failed");
         return ESP_FAIL;
@@ -409,6 +413,13 @@ static esp_err_t handle_jpg(httpd_req_t *req)
 
     esp_camera_fb_return(fb);
 
+    uint64_t us_end = (uint64_t) esp_timer_get_time();
+
+    ESP_LOGI(TAG, "JPG Capture time %d uS, send time %d uS, total %d uS", 
+                  (int) (us_capture - us_start),
+                  (int) (us_end - us_capture),
+                  (int) (us_end - us_start));
+
     return err;
 }
 
@@ -487,9 +498,16 @@ static esp_err_t handle_jpg_stream(httpd_req_t *req)
     err = httpd_resp_set_type(req, _STREAM_CONTENT_TYPE);
 
     while (err == ESP_OK) {
+        uint64_t us_start = (uint64_t) esp_timer_get_time();
+
         //acquire a frame
         camera_fb_t * fb = esp_camera_fb_get();
 
+        uint64_t us_capture = (uint64_t) esp_timer_get_time();
+
+        //acquire a frame
+        //camera_fb_t * fb = esp_camera_fb_get();
+
         if (!fb) {
             ESP_LOGE(TAG, "Camera Capture Failed");
             err = ESP_FAIL;
@@ -510,6 +528,13 @@ static esp_err_t handle_jpg_stream(httpd_req_t *req)
         }
 
         esp_camera_fb_return(fb);
+
+        uint64_t us_end = (uint64_t) esp_timer_get_time();
+
+        ESP_LOGI(TAG, "JPG Capture time %d uS, send time %d uS, total %d uS", 
+                        (int) (us_capture - us_start),
+                        (int) (us_end - us_capture),
+                        (int) (us_end - us_start));
     }
 
     return err;