实现jpeg编码。

Application.cpp

@@ -2,6 +2,7 @@
 #include "BoostLog.h"
 #include "Configuration.h"
 #include "H264Palyer.h"
+#include "Settings.h"
 #include "VideoFrameProvider.h"
 #include <QFileInfo>
 #include <QFont>
@@ -9,10 +10,31 @@
 #include <QQmlApplicationEngine>
 #include <QQmlContext>
 
+std::ostream &operator<<(std::ostream &os, const ImageFormat &format) {
+    switch (format) {
+    case ImageFormat::Jpeg:
+        os << "Jpeg";
+        break;
+    case ImageFormat::YUV:
+        os << "YUV";
+        break;
+    default:
+        os << "Unknown";
+        break;
+    }
+    return os;
+}
+
 Application::Application(int &argc, char **argv)
     : m_app(std::make_shared<QGuiApplication>(argc, argv)), m_videoFrameProvider(new VideoFrameProvider()),
       m_player(std::make_shared<H264Palyer>()), m_devices(new DeviceListModel(this)),
       m_collector(new DataCollection(this)) {
+    using namespace Amass;
+
+    m_settings = Singleton<Settings>::instance<Construct>();
+    m_settings->load();
+    m_collector->setImageFormat(m_settings->imageFormat(), m_settings->imageQuality());
+
     QFont font;
     font.setPointSize(16);
     font.setFamily("微软雅黑");

Application.h

@@ -12,6 +12,7 @@
 
 class QGuiApplication;
 class VideoFrameProvider;
+class Settings;
 class H264Palyer;
 
 class Application : public QObject {
@@ -102,6 +103,7 @@ protected:
 private:
     std::shared_ptr<QGuiApplication> m_app;
     VideoFrameProvider *m_videoFrameProvider = nullptr;
+    std::shared_ptr<Settings> m_settings;
     std::shared_ptr<H264Palyer> m_player;
     std::weak_ptr<DeviceConnection> m_device;
     DeviceListModel *m_devices = nullptr;

CMakeLists.txt

@@ -52,6 +52,7 @@ add_executable(AntiClipSettings
     DeviceListModel.h DeviceListModel.cpp
     H264Palyer.h H264Palyer.cpp
     VideoFrameProvider.h VideoFrameProvider.cpp
+    Settings.h Settings.cpp
 )
 
 if (Qt6_FOUND)
@@ -92,10 +93,12 @@ add_subdirectory(${Projects_ROOT}/Kylin/Encrypt Encrypt)
 target_include_directories(AntiClipSettings
     PRIVATE ${FFmpeg_INCLUDE_DIR}
     PRIVATE ${CMAKE_CURRENT_BINARY_DIR}
+    PRIVATE ${Libraries_ROOT}/libjpeg-turbo64/include
 )
 
 target_link_directories(AntiClipSettings
     PRIVATE ${FFmpeg_LIB_DIR}
+    PRIVATE ${Libraries_ROOT}/libjpeg-turbo64/lib
 )
 
 target_link_libraries(AntiClipSettings
@@ -111,6 +114,7 @@ target_link_libraries(AntiClipSettings
     PRIVATE avformat
     PRIVATE Universal
     PRIVATE Encrypt
+    PRIVATE turbojpeg-static
     PRIVATE Ws2_32
 )
 

DataCollection.cpp

@@ -7,6 +7,7 @@
 #include <boost/json/object.hpp>
 #include <boost/json/parse.hpp>
 #include <boost/json/serialize.hpp>
+#include <turbojpeg.h>
 
 DataCollection::DataCollection(QObject *parent) : QObject{parent} {
     m_manager = new QNetworkAccessManager(this);
@@ -24,6 +25,15 @@ void DataCollection::stop() {
     emit enabledChanged();
 }
 
+void DataCollection::setImageFormat(ImageFormat format, int quality) {
+    if (m_format != format) {
+        m_format = format;
+    }
+    if (m_quality != quality) {
+        m_quality = quality;
+    }
+}
+
 QString DataCollection::path() const {
     return m_path;
 }
@@ -78,13 +88,81 @@ void DataCollection::onCaptureFinished() {
 void DataCollection::onDataGetFinished() {
     auto reply = dynamic_cast<QNetworkReply *>(sender());
     auto data = reply->readAll();
-    LOG(info) << "error: " << reply->error() << ", capture data size: " << data.size();
-
+    if (m_format == ImageFormat::Jpeg) {
+        m_filename.replace("yuv", "jpg");
+    }
+    LOG(info) << "filename: " << m_filename.toStdString() << ", error: " << reply->error()
+              << ", capture data size: " << data.size();
     QFile file(m_path + "/" + m_filename);
     file.open(QIODevice::WriteOnly);
-    file.write(data);
+    if (m_format == ImageFormat::Jpeg) {
+        auto jpegBuffer =
+            encodeNv21ToJpeg(reinterpret_cast<uint8_t *>(data.data()), ImageWidth, ImageHeight, m_quality);
+        file.write(reinterpret_cast<const char *>(jpegBuffer.data()), jpegBuffer.size());
+    } else {
+        file.write(data);
+    }
     file.close();
     if (m_enabled) {
         QTimer::singleShot(0, this, [this]() { start(); });
     }
 }
+
+static void convertNV21ToYUV420(uint8_t *nv21, uint8_t *yuv420, int width, int height) {
+    int frameSize = width * height;
+    int chromaSize = frameSize / 4;
+
+    memcpy(yuv420, nv21, frameSize);
+
+    uint8_t *u = yuv420 + frameSize;
+    uint8_t *v = u + chromaSize;
+
+    uint8_t *uv = nv21 + frameSize;
+
+    for (int i = 0; i < chromaSize; i++) {
+        u[i] = uv[2 * i + 1];
+        v[i] = uv[2 * i];
+    }
+}
+
+std::vector<uint8_t> DataCollection::encodeNv21ToJpeg(uint8_t *nv21, int width, int height, int quality) {
+    tjhandle handle = tjInitCompress();
+    if (handle == nullptr) {
+        fprintf(stderr, "Failed to initialize turbojpeg compressor\n");
+        return {};
+    }
+
+    unsigned long jpeg_size = 0;
+    uint8_t *jpeg_buffer = nullptr;
+
+    int yuv_size = tjBufSizeYUV2(width, 4, height, TJSAMP_420);
+    uint8_t *yuv_buffer = (uint8_t *)malloc(yuv_size);
+    if (yuv_buffer == nullptr) {
+        fprintf(stderr, "Failed to allocate YUV buffer\n");
+        tjDestroy(handle);
+        return {};
+    }
+
+    // Convert NV21 to YUV420
+    convertNV21ToYUV420(nv21, yuv_buffer, width, height);
+
+    // Compress YUV to JPEG
+    int retval = tjCompressFromYUV(handle, yuv_buffer, width, 4, height, TJSAMP_420, &jpeg_buffer, &jpeg_size, quality,
+                                   TJFLAG_FASTDCT);
+    if (retval != 0) {
+        fprintf(stderr, "Failed to compress to JPEG: %s\n", tjGetErrorStr());
+        free(yuv_buffer);
+        tjDestroy(handle);
+        return {};
+    }
+
+    // Copy the JPEG buffer into a std::vector
+    std::vector<uint8_t> jpeg_vector(jpeg_buffer, jpeg_buffer + jpeg_size);
+
+    // Free the JPEG buffer allocated by libjpeg-turbo
+    tjFree(jpeg_buffer);
+    free(yuv_buffer);
+    tjDestroy(handle);
+
+    return jpeg_vector;
+}

DataCollection.h

@@ -1,6 +1,7 @@
 #ifndef DATACOLLECTION_H
 #define DATACOLLECTION_H
 
+#include "DataStructure.h"
 #include <QObject>
 #include <QQmlEngine>
 
@@ -17,6 +18,7 @@ public:
     explicit DataCollection(QObject *parent = nullptr);
     Q_INVOKABLE void start(const QString &address);
     Q_INVOKABLE void stop();
+    void setImageFormat(ImageFormat format, int quality);
 
     QString path() const;
     void setPath(const QString &path);
@@ -31,6 +33,7 @@ protected:
     void start();
     void onCaptureFinished();
     void onDataGetFinished();
+    static std::vector<uint8_t> encodeNv21ToJpeg(uint8_t *nv21, int width, int height, int quality);
 
 private:
     QNetworkAccessManager *m_manager = nullptr;
@@ -38,6 +41,9 @@ private:
     QString m_address;
     QString m_path;
     QString m_filename;
+
+    ImageFormat m_format = ImageFormat::Jpeg;
+    int m_quality = 100;
 };
 
 #endif // DATACOLLECTION_H

DataStructure.h

@@ -4,6 +4,15 @@
 #include <QObject>
 #include <QQmlEngine>
 
+constexpr int ImageWidth = 576;
+constexpr int ImageHeight = 320;
+enum class ImageFormat : int {
+    Jpeg = 0,
+    YUV,  // nv21 576x320
+    None, // 新增枚举需要放在这上面
+};
+std::ostream &operator<<(std::ostream &os, const ImageFormat &format);
+
 struct NetworkInfomation {
     Q_GADGET
     QML_NAMED_ELEMENT(networkInfomation)

Settings.cpp

@@ -0,0 +1,50 @@
+#include "Settings.h"
+#include "BoostLog.h"
+#include <boost/property_tree/ptree.hpp>
+#include <boost/property_tree/xml_parser.hpp>
+#include <filesystem>
+
+constexpr auto SettingsFilePath = "settings.xml";
+
+Settings::Settings() {
+    if (!std::filesystem::exists(SettingsFilePath)) {
+        save();
+    }
+}
+
+void Settings::save() {
+    boost::property_tree::ptree ptree;
+    ptree.put("Application.DataCollection.ImageFormat", static_cast<int>(m_imageFormat));
+
+    std::ostringstream oss;
+    for (int i = 0; i < static_cast<int>(ImageFormat::None); i++) {
+        oss << i << ":" << static_cast<ImageFormat>(i) << " ";
+    }
+    ptree.put("Application.DataCollection.ImageFormat.<xmlcomment>", oss.str());
+
+    ptree.put("Application.DataCollection.ImageQuality", m_imageQuality);
+    ptree.put("Application.DataCollection.ImageQuality.<xmlcomment>", "0-100,仅对jpg有效");
+
+    boost::property_tree::xml_writer_settings<std::string> settings('\t', 1);
+    boost::property_tree::write_xml(SettingsFilePath, ptree, std::locale(), settings);
+}
+
+void Settings::load() {
+    boost::property_tree::ptree ptree;
+    try {
+        boost::property_tree::read_xml(SettingsFilePath, ptree);
+        m_imageFormat = static_cast<ImageFormat>(ptree.get<int>("Application.DataCollection.ImageFormat"));
+        m_imageQuality = ptree.get<int>("Application.DataCollection.ImageQuality");
+    } catch (...) {
+        LOG(error) << "parse " << SettingsFilePath << " failed.";
+    }
+    LOG(info) << "image format: " << m_imageFormat << ", quality: " << m_imageQuality;
+}
+
+ImageFormat Settings::imageFormat() const {
+    return m_imageFormat;
+}
+
+int Settings::imageQuality() const {
+    return m_imageQuality;
+}

Settings.h

@@ -0,0 +1,24 @@
+#ifndef SETTINGS_H
+#define SETTINGS_H
+
+#include "DataStructure.h"
+#include "Singleton.h"
+
+class Settings {
+    friend class Amass::Singleton<Settings>;
+
+public:
+    void save();
+    void load();
+    ImageFormat imageFormat() const;
+    int imageQuality() const;
+
+protected:
+    Settings();
+
+private:
+    ImageFormat m_imageFormat = ImageFormat::Jpeg; // 0: jpg  1: yuv
+    int m_imageQuality = 100;
+};
+
+#endif // SETTINGS_H