fix: voice interupt

main/background_capture_service.cc

@@ -0,0 +1,177 @@
+#include "background_capture_service.h"
+
+#include "board.h"
+#include "camera.h"
+
+#include <algorithm>
+#include <esp_heap_caps.h>
+#include <esp_log.h>
+
+#define TAG "BgCapture"
+
+BackgroundCaptureService::BackgroundCaptureService() = default;
+
+BackgroundCaptureService::~BackgroundCaptureService() {
+    Stop();
+}
+
+void BackgroundCaptureService::Start() {
+#if CONFIG_BACKGROUND_CAPTURE_ENABLE
+    if (running_.exchange(true)) {
+        return;
+    }
+
+    auto result = xTaskCreate(
+        &BackgroundCaptureService::TaskEntry,
+        "bg_capture",
+        CONFIG_BACKGROUND_CAPTURE_TASK_STACK_SIZE,
+        this,
+        CONFIG_BACKGROUND_CAPTURE_TASK_PRIORITY,
+        &task_handle_);
+    if (result != pdPASS) {
+        running_.store(false);
+        task_handle_ = nullptr;
+        ESP_LOGE(TAG, "Failed to create background capture task");
+    }
+#endif
+}
+
+void BackgroundCaptureService::Stop() {
+#if CONFIG_BACKGROUND_CAPTURE_ENABLE
+    if (!running_.exchange(false)) {
+        return;
+    }
+
+    while (task_handle_ != nullptr) {
+        vTaskDelay(pdMS_TO_TICKS(20));
+    }
+#endif
+}
+
+void BackgroundCaptureService::TaskEntry(void* arg) {
+#if CONFIG_BACKGROUND_CAPTURE_ENABLE
+    auto* service = static_cast<BackgroundCaptureService*>(arg);
+    service->Run();
+    service->task_handle_ = nullptr;
+#else
+    (void)arg;
+#endif
+    vTaskDelete(nullptr);
+}
+
+void BackgroundCaptureService::Run() {
+#if CONFIG_BACKGROUND_CAPTURE_ENABLE
+    ESP_LOGI(TAG, "Background capture task started");
+
+    while (running_.load()) {
+        if (!CaptureAndSendFrame()) {
+            consecutive_failures_++;
+            auto delay_ms = GetFailureDelayMs();
+            ESP_LOGW(TAG, "Background capture retry in %u ms, failures=%u",
+                     delay_ms, consecutive_failures_);
+            vTaskDelay(pdMS_TO_TICKS(delay_ms));
+            continue;
+        }
+
+        consecutive_failures_ = 0;
+        vTaskDelay(pdMS_TO_TICKS(CONFIG_BACKGROUND_CAPTURE_FRAME_INTERVAL_MS));
+    }
+
+    ESP_LOGI(TAG, "Background capture task stopped");
+#endif
+}
+
+bool BackgroundCaptureService::CaptureAndSendFrame() {
+#if CONFIG_BACKGROUND_CAPTURE_ENABLE
+    const size_t free_internal_heap = heap_caps_get_free_size(MALLOC_CAP_INTERNAL);
+    if (free_internal_heap < CONFIG_BACKGROUND_CAPTURE_MIN_FREE_INTERNAL_HEAP) {
+        ESP_LOGW(TAG, "Skip background capture, low internal heap: free=%u threshold=%u",
+                 static_cast<unsigned>(free_internal_heap),
+                 static_cast<unsigned>(CONFIG_BACKGROUND_CAPTURE_MIN_FREE_INTERNAL_HEAP));
+        return false;
+    }
+
+    auto camera = Board::GetInstance().GetCamera();
+    if (camera == nullptr) {
+        ESP_LOGW(TAG, "No camera available for background capture");
+        return false;
+    }
+
+    std::string jpeg_data;
+    if (!camera->CaptureToJpeg(jpeg_data, false)) {
+        ESP_LOGW(TAG, "Failed to capture background frame");
+        return false;
+    }
+
+    if (jpeg_data.empty()) {
+        ESP_LOGW(TAG, "Captured empty background frame");
+        return false;
+    }
+
+    return UploadJpegFrame(jpeg_data);
+#else
+    return false;
+#endif
+}
+
+uint32_t BackgroundCaptureService::GetFailureDelayMs() const {
+#if CONFIG_BACKGROUND_CAPTURE_ENABLE
+    const uint32_t base_delay_ms = CONFIG_BACKGROUND_CAPTURE_RETRY_INTERVAL_MS;
+    const uint32_t max_delay_ms = CONFIG_BACKGROUND_CAPTURE_MAX_BACKOFF_MS;
+    const uint32_t shift = std::min<uint32_t>(consecutive_failures_ - 1, 4);
+    return std::min<uint32_t>(base_delay_ms << shift, max_delay_ms);
+#else
+    return 0;
+#endif
+}
+
+bool BackgroundCaptureService::UploadJpegFrame(const std::string& jpeg_data) {
+#if CONFIG_BACKGROUND_CAPTURE_ENABLE
+    const std::string url = CONFIG_BACKGROUND_CAPTURE_UPLOAD_URL;
+    if (url.empty()) {
+        ESP_LOGI(TAG, "Captured background frame: %u bytes", static_cast<unsigned>(jpeg_data.size()));
+        return true;
+    }
+
+    auto network = Board::GetInstance().GetNetwork();
+    if (network == nullptr) {
+        ESP_LOGW(TAG, "No network available for background upload");
+        return false;
+    }
+
+    const std::string boundary = "----XIAOZHI_BACKGROUND_CAPTURE_BOUNDARY";
+    auto http = network->CreateHttp(3);
+    http->SetHeader("Content-Type", "multipart/form-data; boundary=" + boundary);
+
+    if (!http->Open("POST", url)) {
+        ESP_LOGW(TAG, "Failed to open background upload URL: %s", url.c_str());
+        return false;
+    }
+
+    std::string file_header;
+    file_header += "--" + boundary + "\r\n";
+    file_header += "Content-Disposition: form-data; name=\"file\"; filename=\"frame.jpg\"\r\n";
+    file_header += "Content-Type: image/jpeg\r\n\r\n";
+    http->Write(file_header.c_str(), file_header.size());
+    http->Write(jpeg_data.data(), jpeg_data.size());
+
+    std::string footer;
+    footer += "\r\n--" + boundary + "--\r\n";
+    http->Write(footer.c_str(), footer.size());
+    http->Write("", 0);
+
+    const int status_code = http->GetStatusCode();
+    http->Close();
+
+    if (status_code < 200 || status_code >= 300) {
+        ESP_LOGW(TAG, "Background upload failed, status=%d", status_code);
+        return false;
+    }
+
+    ESP_LOGI(TAG, "Uploaded background frame: %u bytes", static_cast<unsigned>(jpeg_data.size()));
+    return true;
+#else
+    (void)jpeg_data;
+    return false;
+#endif
+}