📷 Adds camera service

2024-05-08 23:36:35 +02:00
parent b7ae17f3bf
commit c0fa16dd71
15 changed files with 646 additions and 105 deletions
@@ -0,0 +1,90 @@
+#include <CameraService.h>
+
+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";
+
+SemaphoreHandle_t cameraMutex = xSemaphoreCreateMutex();
+
+camera_fb_t *safe_camera_fb_get() {
+    camera_fb_t *fb = NULL;
+    if (xSemaphoreTake(cameraMutex, portMAX_DELAY) == pdTRUE) {
+        fb = esp_camera_fb_get();
+        xSemaphoreGive(cameraMutex);
+    }
+    return fb;
+}
+
+CameraService::CameraService(PsychicHttpServer *server,
+                             TaskManager *taskManager,
+                             SecurityManager *securityManager)
+    : _server(server),
+      _taskManager(taskManager),
+      _securityManager(securityManager),
+      _videoStream(_STREAM_CONTENT_TYPE) {}
+void CameraService::begin() {
+    InitializeCamera();
+    _server->on(
+        STILL_SERVICE_PATH, HTTP_GET,
+        _securityManager->wrapRequest(
+            std::bind(&CameraService::cameraStill, this, std::placeholders::_1),
+            AuthenticationPredicates::IS_AUTHENTICATED)); 
+
+    ESP_LOGV("CameraService", "Registered GET endpoint: %s", STILL_SERVICE_PATH);
+}
+
+esp_err_t CameraService::InitializeCamera() {
+    camera_config_t camera_config;
+    camera_config.ledc_channel = LEDC_CHANNEL_0;
+    camera_config.ledc_timer = LEDC_TIMER_0;
+    camera_config.pin_d0 = Y2_GPIO_NUM;
+    camera_config.pin_d1 = Y3_GPIO_NUM;
+    camera_config.pin_d2 = Y4_GPIO_NUM;
+    camera_config.pin_d3 = Y5_GPIO_NUM;
+    camera_config.pin_d4 = Y6_GPIO_NUM;
+    camera_config.pin_d5 = Y7_GPIO_NUM;
+    camera_config.pin_d6 = Y8_GPIO_NUM;
+    camera_config.pin_d7 = Y9_GPIO_NUM;
+    camera_config.pin_xclk = XCLK_GPIO_NUM;
+    camera_config.pin_pclk = PCLK_GPIO_NUM;
+    camera_config.pin_vsync = VSYNC_GPIO_NUM;
+    camera_config.pin_href = HREF_GPIO_NUM;
+    camera_config.pin_sccb_sda = SIOD_GPIO_NUM;
+    camera_config.pin_sccb_scl = SIOC_GPIO_NUM;
+    camera_config.pin_pwdn = PWDN_GPIO_NUM;
+    camera_config.pin_reset = RESET_GPIO_NUM;
+    camera_config.xclk_freq_hz = 20000000;
+    camera_config.pixel_format = PIXFORMAT_JPEG;
+
+    if (psramFound()) {
+        camera_config.frame_size = FRAMESIZE_SVGA;
+        camera_config.jpeg_quality = 10;
+        camera_config.fb_count = 2;
+    } else {
+        camera_config.frame_size = FRAMESIZE_SVGA;
+        camera_config.jpeg_quality = 12;
+        camera_config.fb_count = 1;
+    }
+
+    log_i("Initializing camera");
+    esp_err_t err = esp_camera_init(&camera_config);
+    if (err != ESP_OK) log_e("Camera probe failed with error 0x%x", err);
+
+    return err;
+}
+
+esp_err_t CameraService::cameraStill(PsychicRequest *request) {
+    camera_fb_t *fb = safe_camera_fb_get();
+    if (!fb) {
+        Serial.println("Camera capture failed");
+        request->reply(500, "text/plain", "Camera capture failed");
+        return ESP_FAIL;
+    }
+    PsychicStreamResponse response = PsychicStreamResponse(request, "image/jpeg", "capture.jpg");
+    response.beginSend();
+    response.write(fb->buf, fb->len);
+    esp_camera_fb_return(fb);
+    return response.endSend();
+}