添加视频压缩代码

others/C/video_compression/Makefile

@@ -0,0 +1,34 @@
+# 编译器设置
+CC = gcc
+CFLAGS = -Wall -Wextra -O2 -Iinclude
+LDFLAGS = -lavcodec -lavformat -lavutil -lswscale -lgdi32 -lcomdlg32 -mwindows
+
+# 目录设置
+OBJ_DIR = obj
+BUILD_DIR = build
+
+# 源文件和目标文件
+SRC = $(wildcard src/*.c)
+OBJ = $(patsubst src/%.c,$(OBJ_DIR)/%.o,$(SRC))
+EXEC = $(BUILD_DIR)/video_compressor.exe
+
+# 创建目录
+$(shell mkdir -p $(OBJ_DIR))
+$(shell mkdir -p $(BUILD_DIR))
+
+# 默认目标
+all: $(EXEC)
+
+# 链接可执行文件
+$(EXEC): $(OBJ)
+	$(CC) -o $@ $^ $(LDFLAGS)
+
+# 编译规则
+$(OBJ_DIR)/%.o: src/%.c
+	$(CC) $(CFLAGS) -c $< -o $@
+
+# 清理规则
+clean:
+	del /Q $(OBJ_DIR)\*.o $(EXEC)
+
+.PHONY: all clean

others/C/video_compression/include/config.h

@@ -0,0 +1,65 @@
+#ifndef CONFIG_H
+#define CONFIG_H
+
+#include <stdbool.h>
+
+/**
+ * 加载配置文件
+ * @param config_file 配置文件路径
+ * @return true表示成功，false表示失败
+ */
+bool config_load(const char* config_file);
+
+/**
+ * 保存配置文件
+ * @param config_file 配置文件路径
+ * @return true表示成功，false表示失败
+ */
+bool config_save(const char* config_file);
+
+/**
+ * 获取字符串配置值
+ * @param key 配置键
+ * @param default_value 默认值
+ * @return 配置值
+ */
+const char* config_get_string(const char* key, const char* default_value);
+
+/**
+ * 获取整数配置值
+ * @param key 配置键
+ * @param default_value 默认值
+ * @return 配置值
+ */
+int config_get_int(const char* key, int default_value);
+
+/**
+ * 获取布尔配置值
+ * @param key 配置键
+ * @param default_value 默认值
+ * @return 配置值
+ */
+bool config_get_bool(const char* key, bool default_value);
+
+/**
+ * 设置字符串配置值
+ * @param key 配置键
+ * @param value 配置值
+ */
+void config_set_string(const char* key, const char* value);
+
+/**
+ * 设置整数配置值
+ * @param key 配置键
+ * @param value 配置值
+ */
+void config_set_int(const char* key, int value);
+
+/**
+ * 设置布尔配置值
+ * @param key 配置键
+ * @param value 配置值
+ */
+void config_set_bool(const char* key, bool value);
+
+#endif // CONFIG_H

others/C/video_compression/include/error.h

@@ -0,0 +1,37 @@
+#ifndef ERROR_H
+#define ERROR_H
+
+typedef enum {
+    ERR_NONE = 0,
+    ERR_FILE_NOT_FOUND,
+    ERR_INVALID_ARGUMENT,
+    ERR_MEMORY_ALLOC,
+    ERR_FFMPEG,
+    ERR_UNKNOWN
+} ErrorCode;
+
+/**
+ * 设置当前错误代码
+ * @param code 错误代码
+ * @param message 错误信息(可选)
+ */
+void error_set(ErrorCode code, const char* message);
+
+/**
+ * 获取当前错误代码
+ * @return 错误代码
+ */
+ErrorCode error_get_code();
+
+/**
+ * 获取当前错误信息
+ * @return 错误信息字符串
+ */
+const char* error_get_message();
+
+/**
+ * 清除错误状态
+ */
+void error_clear();
+
+#endif // ERROR_H

others/C/video_compression/include/file_utils.h

@@ -0,0 +1,27 @@
+#ifndef FILE_UTILS_H
+#define FILE_UTILS_H
+
+#include <stdbool.h>
+
+/**
+ * 检查文件是否存在
+ * @param path 文件路径
+ * @return true表示存在，false表示不存在
+ */
+bool file_exists(const char* path);
+
+/**
+ * 获取文件大小
+ * @param path 文件路径
+ * @return 文件大小(字节)，-1表示错误
+ */
+long file_size(const char* path);
+
+/**
+ * 获取文件扩展名
+ * @param path 文件路径
+ * @return 扩展名字符串(包含.)，NULL表示没有扩展名
+ */
+const char* file_extension(const char* path);
+
+#endif // FILE_UTILS_H

others/C/video_compression/include/gui.h

@@ -0,0 +1,16 @@
+#ifndef GUI_H
+#define GUI_H
+
+#include <windows.h>
+
+// 初始化GUI界面
+BOOL init_gui(HINSTANCE hInstance);
+
+// 主窗口过程函数
+LRESULT CALLBACK MainWndProc(HWND hwnd, UINT msg, 
+                            WPARAM wParam, LPARAM lParam);
+
+// 创建压缩参数设置控件
+void create_compression_controls(HWND hwnd);
+
+#endif // GUI_H

others/C/video_compression/include/logger.h

@@ -0,0 +1,38 @@
+#ifndef LOGGER_H
+#define LOGGER_H
+
+#include <stdio.h>
+
+typedef enum {
+    LOG_DEBUG,
+    LOG_INFO,
+    LOG_WARNING,
+    LOG_ERROR
+} LogLevel;
+
+/**
+ * 初始化日志系统
+ * @param log_file 日志文件路径，NULL表示输出到stdout
+ */
+void logger_init(const char* log_file);
+
+/**
+ * 设置日志级别
+ * @param level 日志级别
+ */
+void logger_set_level(LogLevel level);
+
+/**
+ * 记录日志
+ * @param level 日志级别
+ * @param format 格式化字符串
+ * @param ... 可变参数
+ */
+void logger_log(LogLevel level, const char* format, ...);
+
+/**
+ * 关闭日志系统
+ */
+void logger_close();
+
+#endif // LOGGER_H

others/C/video_compression/include/progress.h

@@ -0,0 +1,21 @@
+#ifndef PROGRESS_H
+#define PROGRESS_H
+
+/**
+ * 初始化进度显示
+ * @param total 总工作量
+ */
+void progress_init(long total);
+
+/**
+ * 更新进度
+ * @param current 当前进度
+ */
+void progress_update(long current);
+
+/**
+ * 完成进度显示
+ */
+void progress_finish();
+
+#endif // PROGRESS_H

others/C/video_compression/include/string_utils.h

@@ -0,0 +1,61 @@
+#ifndef STRING_UTILS_H
+#define STRING_UTILS_H
+
+#include <stddef.h>
+
+/**
+ * 安全的字符串拷贝
+ * @param dest 目标缓冲区
+ * @param src 源字符串
+ * @param dest_size 目标缓冲区大小
+ * @return 目标字符串
+ */
+char* str_copy(char* dest, const char* src, size_t dest_size);
+
+/**
+ * 安全的字符串连接
+ * @param dest 目标缓冲区
+ * @param src 要连接的字符串
+ * @param dest_size 目标缓冲区大小
+ * @return 目标字符串
+ */
+char* str_concat(char* dest, const char* src, size_t dest_size);
+
+/**
+ * 去除字符串两端的空白字符
+ * @param str 要处理的字符串
+ * @return 处理后的字符串
+ */
+char* str_trim(char* str);
+
+/**
+ * 检查字符串是否以指定前缀开头
+ * @param str 要检查的字符串
+ * @param prefix 前缀
+ * @return 1表示是，0表示否
+ */
+int str_starts_with(const char* str, const char* prefix);
+
+/**
+ * 检查字符串是否以指定后缀结尾
+ * @param str 要检查的字符串
+ * @param suffix 后缀
+ * @return 1表示是，0表示否
+ */
+int str_ends_with(const char* str, const char* suffix);
+
+/**
+ * 将字符串转换为小写
+ * @param str 要转换的字符串
+ * @return 转换后的字符串
+ */
+char* str_to_lower(char* str);
+
+/**
+ * 将字符串转换为大写
+ * @param str 要转换的字符串
+ * @return 转换后的字符串
+ */
+char* str_to_upper(char* str);
+
+#endif // STRING_UTILS_H

others/C/video_compression/include/utils.h

@@ -0,0 +1,26 @@
+#ifndef UTILS_H
+#define UTILS_H
+
+#include <stdbool.h>
+
+/**
+ * 获取当前时间戳(毫秒)
+ * @return 时间戳
+ */
+long long get_timestamp();
+
+/**
+ * 生成随机字符串
+ * @param buffer 输出缓冲区
+ * @param length 字符串长度
+ */
+void generate_random_string(char* buffer, int length);
+
+/**
+ * 检查指针是否有效
+ * @param ptr 要检查的指针
+ * @return true表示有效，false表示无效
+ */
+bool is_pointer_valid(const void* ptr);
+
+#endif // UTILS_H

others/C/video_compression/include/video_compressor.h

@@ -0,0 +1,24 @@
+#ifndef VIDEO_COMPRESSOR_H
+#define VIDEO_COMPRESSOR_H
+
+/**
+ * 压缩视频文件
+ * @param input_file 输入文件路径
+ * @param output_file 输出文件路径
+ * @param quality 压缩质量(1-10000)
+ * @return 0表示成功，非0表示失败
+ */
+int compress_video(const char* input_file, const char* output_file, int quality);
+
+/**
+ * 初始化视频压缩模块
+ * @return 0表示成功，非0表示失败
+ */
+int init_video_compressor();
+
+/**
+ * 清理视频压缩模块资源
+ */
+void cleanup_video_compressor();
+
+#endif // VIDEO_COMPRESSOR_H

others/C/video_compression/src/config.c

@@ -0,0 +1,127 @@
+#include "config.h"
+#include "string_utils.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define MAX_CONFIG_SIZE 1024
+
+typedef struct ConfigEntry {
+    char* key;
+    char* value;
+    struct ConfigEntry* next;
+} ConfigEntry;
+
+static ConfigEntry* config_list = NULL;
+
+static ConfigEntry* config_find_entry(const char* key) {
+    ConfigEntry* entry = config_list;
+    while (entry != NULL) {
+        if (strcmp(entry->key, key) == 0) {
+            return entry;
+        }
+        entry = entry->next;
+    }
+    return NULL;
+}
+
+bool config_load(const char* config_file) {
+    FILE* file = fopen(config_file, "r");
+    if (file == NULL) {
+        return false;
+    }
+
+    char line[MAX_CONFIG_SIZE];
+    while (fgets(line, sizeof(line), file) != NULL) {
+        // 去除注释和空白行
+        char* comment = strchr(line, '#');
+        if (comment != NULL) {
+            *comment = '\0';
+        }
+
+        str_trim(line);
+        if (strlen(line) == 0) {
+            continue;
+        }
+
+        // 解析键值对
+        char* separator = strchr(line, '=');
+        if (separator == NULL) {
+            continue;
+        }
+
+        *separator = '\0';
+        char* key = str_trim(line);
+        char* value = str_trim(separator + 1);
+
+        // 添加到配置列表
+        config_set_string(key, value);
+    }
+
+    fclose(file);
+    return true;
+}
+
+bool config_save(const char* config_file) {
+    FILE* file = fopen(config_file, "w");
+    if (file == NULL) {
+        return false;
+    }
+
+    ConfigEntry* entry = config_list;
+    while (entry != NULL) {
+        fprintf(file, "%s=%s\n", entry->key, entry->value);
+        entry = entry->next;
+    }
+
+    fclose(file);
+    return true;
+}
+
+const char* config_get_string(const char* key, const char* default_value) {
+    ConfigEntry* entry = config_find_entry(key);
+    if (entry != NULL) {
+        return entry->value;
+    }
+    return default_value;
+}
+
+int config_get_int(const char* key, int default_value) {
+    const char* str = config_get_string(key, NULL);
+    if (str != NULL) {
+        return atoi(str);
+    }
+    return default_value;
+}
+
+bool config_get_bool(const char* key, bool default_value) {
+    const char* str = config_get_string(key, NULL);
+    if (str != NULL) {
+        return strcmp(str, "true") == 0 || strcmp(str, "1") == 0;
+    }
+    return default_value;
+}
+
+void config_set_string(const char* key, const char* value) {
+    ConfigEntry* entry = config_find_entry(key);
+    if (entry != NULL) {
+        free(entry->value);
+        entry->value = strdup(value);
+    } else {
+        entry = malloc(sizeof(ConfigEntry));
+        entry->key = strdup(key);
+        entry->value = strdup(value);
+        entry->next = config_list;
+        config_list = entry;
+    }
+}
+
+void config_set_int(const char* key, int value) {
+    char str[32];
+    snprintf(str, sizeof(str), "%d", value);
+    config_set_string(key, str);
+}
+
+void config_set_bool(const char* key, bool value) {
+    config_set_string(key, value ? "true" : "false");
+}

others/C/video_compression/src/error.c

@@ -0,0 +1,54 @@
+#include "error.h"
+#include "logger.h"
+#include <string.h>
+#include <stdlib.h>
+
+static ErrorCode current_error = ERR_NONE;
+static char* error_message = NULL;
+
+void error_set(ErrorCode code, const char* message) {
+    current_error = code;
+    
+    if (error_message != NULL) {
+        free(error_message);
+        error_message = NULL;
+    }
+    
+    if (message != NULL) {
+        error_message = strdup(message);
+    }
+    
+    // 记录错误日志
+    if (code != ERR_NONE) {
+        const char* error_name;
+        switch (code) {
+            case ERR_FILE_NOT_FOUND: error_name = "File not found"; break;
+            case ERR_INVALID_ARGUMENT: error_name = "Invalid argument"; break;
+            case ERR_MEMORY_ALLOC: error_name = "Memory allocation failed"; break;
+            case ERR_FFMPEG: error_name = "FFmpeg error"; break;
+            default: error_name = "Unknown error"; break;
+        }
+        
+        if (message != NULL) {
+            logger_log(LOG_ERROR, "%s: %s", error_name, message);
+        } else {
+            logger_log(LOG_ERROR, "%s", error_name);
+        }
+    }
+}
+
+ErrorCode error_get_code() {
+    return current_error;
+}
+
+const char* error_get_message() {
+    return error_message;
+}
+
+void error_clear() {
+    current_error = ERR_NONE;
+    if (error_message != NULL) {
+        free(error_message);
+        error_message = NULL;
+    }
+}

others/C/video_compression/src/file_utils.c

@@ -0,0 +1,39 @@
+#include "file_utils.h"
+#include <sys/stat.h>
+#include <string.h>
+#include <stdio.h>
+
+bool file_exists(const char* path) {
+    if (path == NULL) {
+        return false;
+    }
+
+    struct stat buffer;
+    return stat(path, &buffer) == 0;
+}
+
+long file_size(const char* path) {
+    if (path == NULL) {
+        return -1;
+    }
+
+    struct stat buffer;
+    if (stat(path, &buffer) != 0) {
+        return -1;
+    }
+
+    return (long)buffer.st_size;
+}
+
+const char* file_extension(const char* path) {
+    if (path == NULL) {
+        return NULL;
+    }
+
+    const char* dot = strrchr(path, '.');
+    if (dot == NULL || dot == path) {
+        return NULL;
+    }
+
+    return dot;
+}

others/C/video_compression/src/gui.c

@@ -0,0 +1,161 @@
+#include "gui.h"
+#include "video_compressor.h"
+#include "string_utils.h"
+#include <windows.h>
+#include <commctrl.h>
+
+#define ID_COMPRESS_BUTTON 101
+#define ID_QUALITY_SLIDER 102
+#define ID_INPUT_FILE_EDIT 103
+#define ID_OUTPUT_FILE_EDIT 104
+#define ID_BROWSE_INPUT_BUTTON 105
+#define ID_BROWSE_OUTPUT_BUTTON 106
+
+// 全局变量
+static HWND g_hwndQualitySlider;
+static HWND g_hwndInputFileEdit;
+static HWND g_hwndOutputFileEdit;
+static HFONT g_hFont = NULL;
+
+// 设置中文字体
+static void SetChineseFont(HWND hwnd) {
+    if (g_hFont == NULL) {
+        g_hFont = CreateFontW(
+            16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE,
+            GB2312_CHARSET,
+            OUT_DEFAULT_PRECIS,
+            CLIP_DEFAULT_PRECIS,
+            DEFAULT_QUALITY,
+            DEFAULT_PITCH | FF_SWISS,
+            L"Microsoft YaHei"
+        );
+    }
+    if (g_hFont) {
+        SendMessageW(hwnd, WM_SETFONT, (WPARAM)g_hFont, TRUE);
+    }
+}
+
+BOOL init_gui(HINSTANCE hInstance) {
+    // 注册窗口类
+    WNDCLASSEXW wc = {0};
+    wc.cbSize = sizeof(WNDCLASSEXW);
+    wc.style = CS_HREDRAW | CS_VREDRAW;
+    wc.lpfnWndProc = MainWndProc;
+    wc.hInstance = hInstance;
+    wc.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_ARROW));
+    wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
+    wc.lpszClassName = L"VideoCompressorClass";
+    
+    if (!RegisterClassExW(&wc)) {
+        return FALSE;
+    }
+
+    // 创建主窗口
+    HWND hwnd = CreateWindowExW(0, wc.lpszClassName, L"视频压缩工具",
+                               WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT,
+                               500, 300, NULL, NULL, hInstance, NULL);
+    if (!hwnd) {
+        return FALSE;
+    }
+
+    // 创建控件
+    create_compression_controls(hwnd);
+
+    ShowWindow(hwnd, SW_SHOW);
+    UpdateWindow(hwnd);
+    return TRUE;
+}
+
+void create_compression_controls(HWND hwnd) {
+    // 设置字体
+    SetChineseFont(hwnd);
+
+    // 创建输入文件选择控件
+    CreateWindowW(L"STATIC", L"输入文件:", WS_CHILD | WS_VISIBLE,
+                20, 20, 80, 20, hwnd, NULL, NULL, NULL);
+    
+    g_hwndInputFileEdit = CreateWindowW(L"EDIT", L"", WS_CHILD | WS_VISIBLE | WS_BORDER,
+                                     110, 20, 250, 20, hwnd, (HMENU)ID_INPUT_FILE_EDIT, NULL, NULL);
+    CreateWindowW(L"BUTTON", L"浏览...", WS_CHILD | WS_VISIBLE,
+                                     370, 20, 60, 20, hwnd, (HMENU)ID_BROWSE_INPUT_BUTTON, NULL, NULL);
+
+    // 创建输出文件选择控件
+    CreateWindowW(L"STATIC", L"输出文件:", WS_CHILD | WS_VISIBLE,
+                20, 50, 80, 20, hwnd, NULL, NULL, NULL);
+    
+    g_hwndOutputFileEdit = CreateWindowW(L"EDIT", L"", WS_CHILD | WS_VISIBLE | WS_BORDER,
+                                      110, 50, 250, 20, hwnd, (HMENU)ID_OUTPUT_FILE_EDIT, NULL, NULL);
+    CreateWindowW(L"BUTTON", L"浏览...", WS_CHILD | WS_VISIBLE,
+                                     370, 50, 60, 20, hwnd, (HMENU)ID_BROWSE_OUTPUT_BUTTON, NULL, NULL);
+
+    // 创建质量滑块
+    CreateWindowW(L"STATIC", L"压缩质量(1-10000):", WS_CHILD | WS_VISIBLE,
+                20, 80, 150, 20, hwnd, NULL, NULL, NULL);
+    
+    g_hwndQualitySlider = CreateWindowW(TRACKBAR_CLASSW, L"", WS_CHILD | WS_VISIBLE | TBS_AUTOTICKS,
+                                     20, 100, 400, 30, hwnd, (HMENU)ID_QUALITY_SLIDER, NULL, NULL);
+    
+    SendMessageW(g_hwndQualitySlider, TBM_SETRANGE, TRUE, MAKELONG(1, 10000));
+    SendMessageW(g_hwndQualitySlider, TBM_SETPOS, TRUE, 5000);
+
+    // 创建压缩按钮
+    CreateWindowW(L"BUTTON", L"开始压缩", WS_CHILD | WS_VISIBLE | BS_DEFPUSHBUTTON,
+                180, 150, 100, 30, hwnd, (HMENU)ID_COMPRESS_BUTTON, NULL, NULL);
+}
+
+LRESULT CALLBACK MainWndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) {
+    switch (msg) {
+        case WM_COMMAND:
+            if (LOWORD(wParam) == ID_COMPRESS_BUTTON) {
+                // 处理压缩按钮点击事件
+                int quality = (int)SendMessageW(g_hwndQualitySlider, TBM_GETPOS, 0, 0);
+                
+                wchar_t inputFile[MAX_PATH];
+                GetWindowTextW(g_hwndInputFileEdit, inputFile, MAX_PATH);
+                
+                wchar_t outputFile[MAX_PATH];
+                GetWindowTextW(g_hwndOutputFileEdit, outputFile, MAX_PATH);
+                
+                // 转换为UTF-8
+                char inputFileUtf8[MAX_PATH * 4];
+                char outputFileUtf8[MAX_PATH * 4];
+                WideCharToMultiByte(CP_UTF8, 0, inputFile, -1, inputFileUtf8, sizeof(inputFileUtf8), NULL, NULL);
+                WideCharToMultiByte(CP_UTF8, 0, outputFile, -1, outputFileUtf8, sizeof(outputFileUtf8), NULL, NULL);
+                
+                // 调用压缩函数
+                compress_video(inputFileUtf8, outputFileUtf8, quality);
+                return 0;
+            } else if (LOWORD(wParam) == ID_BROWSE_INPUT_BUTTON || LOWORD(wParam) == ID_BROWSE_OUTPUT_BUTTON) {
+                // 文件选择对话框
+                OPENFILENAMEW ofn;
+                wchar_t szFile[MAX_PATH] = L"";
+
+                ZeroMemory(&ofn, sizeof(ofn));
+                ofn.lStructSize = sizeof(ofn);
+                ofn.hwndOwner = hwnd;
+                ofn.lpstrFile = szFile;
+                ofn.nMaxFile = sizeof(szFile)/sizeof(szFile[0]);
+                ofn.lpstrFilter = L"视频文件\0*.mp4;*.avi;*.mkv;*.mov\0所有文件\0*.*\0";
+                ofn.nFilterIndex = 1;
+                ofn.Flags = OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;
+
+                if (GetOpenFileNameW(&ofn)) {
+                    HWND targetEdit = (LOWORD(wParam) == ID_BROWSE_INPUT_BUTTON) ? 
+                                     g_hwndInputFileEdit : g_hwndOutputFileEdit;
+                    SetWindowTextW(targetEdit, szFile);
+                }
+                return 0;
+            }
+            break;
+            
+        case WM_DESTROY:
+            if (g_hFont) {
+                DeleteObject(g_hFont);
+                g_hFont = NULL;
+            }
+            PostQuitMessage(0);
+            return 0;
+    }
+    
+    return DefWindowProcW(hwnd, msg, wParam, lParam);
+}

others/C/video_compression/src/logger.c

@@ -0,0 +1,61 @@
+#include "logger.h"
+#include <time.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+
+static FILE* log_file = NULL;
+static LogLevel current_level = LOG_INFO;
+
+void logger_init(const char* log_file_path) {
+    if (log_file_path != NULL) {
+        log_file = fopen(log_file_path, "a");
+    } else {
+        log_file = stdout;
+    }
+}
+
+void logger_set_level(LogLevel level) {
+    current_level = level;
+}
+
+void logger_log(LogLevel level, const char* format, ...) {
+    if (log_file == NULL || level < current_level) {
+        return;
+    }
+
+    // 获取当前时间
+    time_t now;
+    time(&now);
+    char time_str[20];
+    strftime(time_str, sizeof(time_str), "%Y-%m-%d %H:%M:%S", localtime(&now));
+
+    // 日志级别字符串
+    const char* level_str;
+    switch (level) {
+        case LOG_DEBUG: level_str = "DEBUG"; break;
+        case LOG_INFO: level_str = "INFO"; break;
+        case LOG_WARNING: level_str = "WARNING"; break;
+        case LOG_ERROR: level_str = "ERROR"; break;
+        default: level_str = "UNKNOWN"; break;
+    }
+
+    // 写入时间戳和日志级别
+    fprintf(log_file, "[%s] [%s] ", time_str, level_str);
+
+    // 写入日志内容
+    va_list args;
+    va_start(args, format);
+    vfprintf(log_file, format, args);
+    va_end(args);
+
+    fprintf(log_file, "\n");
+    fflush(log_file);
+}
+
+void logger_close() {
+    if (log_file != NULL && log_file != stdout) {
+        fclose(log_file);
+    }
+    log_file = NULL;
+}

others/C/video_compression/src/main.c

@@ -0,0 +1,26 @@
+#include <windows.h>
+#include "video_compressor.h"
+#include "gui.h"
+
+int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, 
+                   LPSTR lpCmdLine, int nCmdShow)
+{
+    // 抑制未使用参数警告
+    (void)hPrevInstance;
+    (void)lpCmdLine;
+    (void)nCmdShow;
+
+    // 初始化GUI
+    if (!init_gui(hInstance)) {
+        return 1;
+    }
+
+    // 主消息循环
+    MSG msg;
+    while (GetMessage(&msg, NULL, 0, 0)) {
+        TranslateMessage(&msg);
+        DispatchMessage(&msg);
+    }
+
+    return (int)msg.wParam;
+}

others/C/video_compression/src/string_utils.c

@@ -0,0 +1,120 @@
+#include "string_utils.h"
+#include <ctype.h>
+#include <string.h>
+#include <stdlib.h>
+
+char* str_copy(char* dest, const char* src, size_t dest_size) {
+    if (dest == NULL || src == NULL || dest_size == 0) {
+        return NULL;
+    }
+
+    size_t i;
+    for (i = 0; i < dest_size - 1 && src[i] != '\0'; i++) {
+        dest[i] = src[i];
+    }
+    dest[i] = '\0';
+
+    return dest;
+}
+
+char* str_concat(char* dest, const char* src, size_t dest_size) {
+    if (dest == NULL || src == NULL || dest_size == 0) {
+        return NULL;
+    }
+
+    size_t dest_len = strlen(dest);
+    if (dest_len >= dest_size) {
+        return dest;
+    }
+
+    size_t i;
+    for (i = 0; i < dest_size - dest_len - 1 && src[i] != '\0'; i++) {
+        dest[dest_len + i] = src[i];
+    }
+    dest[dest_len + i] = '\0';
+
+    return dest;
+}
+
+char* str_trim(char* str) {
+    if (str == NULL) {
+        return NULL;
+    }
+
+    char* end;
+    
+    // 去除前导空白字符
+    while (isspace((unsigned char)*str)) {
+        str++;
+    }
+
+    // 如果全是空白字符
+    if (*str == '\0') {
+        return str;
+    }
+
+    // 去除尾部空白字符
+    end = str + strlen(str) - 1;
+    while (end > str && isspace((unsigned char)*end)) {
+        end--;
+    }
+
+    // 写入终止符
+    *(end + 1) = '\0';
+
+    return str;
+}
+
+int str_starts_with(const char* str, const char* prefix) {
+    if (str == NULL || prefix == NULL) {
+        return 0;
+    }
+
+    size_t len_str = strlen(str);
+    size_t len_prefix = strlen(prefix);
+
+    if (len_prefix > len_str) {
+        return 0;
+    }
+
+    return strncmp(str, prefix, len_prefix) == 0;
+}
+
+int str_ends_with(const char* str, const char* suffix) {
+    if (str == NULL || suffix == NULL) {
+        return 0;
+    }
+
+    size_t len_str = strlen(str);
+    size_t len_suffix = strlen(suffix);
+
+    if (len_suffix > len_str) {
+        return 0;
+    }
+
+    return strncmp(str + len_str - len_suffix, suffix, len_suffix) == 0;
+}
+
+char* str_to_lower(char* str) {
+    if (str == NULL) {
+        return NULL;
+    }
+
+    for (char* p = str; *p != '\0'; p++) {
+        *p = tolower((unsigned char)*p);
+    }
+
+    return str;
+}
+
+char* str_to_upper(char* str) {
+    if (str == NULL) {
+        return NULL;
+    }
+
+    for (char* p = str; *p != '\0'; p++) {
+        *p = toupper((unsigned char)*p);
+    }
+
+    return str;
+}

others/C/video_compression/src/video_compressor.c

@@ -0,0 +1,323 @@
+#include "video_compressor.h"
+#include "string_utils.h"
+#include <libavcodec/avcodec.h>
+#include <libavformat/avformat.h>
+#include <libavutil/opt.h>
+#include <libswscale/swscale.h>
+#include <stdio.h>
+#include <sys/stat.h>  // For mkdir()
+#include <errno.h>     // For errno
+
+// 将质量参数(1-10000)转换为FFmpeg的CRF值(0-51)
+static int convert_quality_to_crf(int quality) {
+    // 更激进的映射关系，确保中等质量也能强力压缩
+    if (quality < 3000) return 45 - (quality * 15) / 3000;  // 低质量区间(30-45)
+    if (quality < 7000) return 30 - ((quality-3000) * 10) / 4000; // 中等质量区间(20-30)
+    return 20 - ((quality-7000) * 2) / 3000;  // 高质量区间(18-20)
+}
+
+int compress_video(const char* input_file, const char* output_file, int quality) {
+    AVFormatContext *input_ctx = NULL;
+    AVFormatContext *output_ctx = NULL;
+    AVCodecContext *encoder_ctx = NULL;
+    const AVCodec *encoder = NULL;
+    AVPacket *packet = NULL;
+    int ret = 0;
+    int video_stream_index = -1;
+    int crf = convert_quality_to_crf(quality);
+
+    // 打开输入文件
+    if (avformat_open_input(&input_ctx, input_file, NULL, NULL) < 0) {
+        fprintf(stderr, "无法打开输入文件\n");
+        ret = -1;
+        goto cleanup;
+    }
+
+    // 获取流信息
+    if (avformat_find_stream_info(input_ctx, NULL) < 0) {
+        fprintf(stderr, "无法获取流信息\n");
+        ret = -1;
+        goto cleanup;
+    }
+
+    // 查找视频流
+    for (unsigned int i = 0; i < input_ctx->nb_streams; i++) {
+        if (input_ctx->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
+            video_stream_index = i;
+            break;
+        }
+    }
+
+    if (video_stream_index == -1) {
+        fprintf(stderr, "未找到视频流\n");
+        ret = -1;
+        goto cleanup;
+    }
+
+    // 创建输出上下文
+    if (avformat_alloc_output_context2(&output_ctx, NULL, NULL, output_file) < 0) {
+        fprintf(stderr, "无法创建输出上下文\n");
+        ret = -1;
+        goto cleanup;
+    }
+
+    // 打开输出文件
+    if (!(output_ctx->oformat->flags & AVFMT_NOFILE)) {
+        if (avio_open(&output_ctx->pb, output_file, AVIO_FLAG_WRITE) < 0) {
+            fprintf(stderr, "无法打开输出文件\n");
+            ret = -1;
+            goto cleanup;
+        }
+    }
+
+    // 配置编码器
+    encoder = avcodec_find_encoder(AV_CODEC_ID_H264);
+    if (!encoder) {
+        fprintf(stderr, "未找到H.264编码器\n");
+        ret = -1;
+        goto cleanup;
+    }
+
+    encoder_ctx = avcodec_alloc_context3(encoder);
+    if (!encoder_ctx) {
+        fprintf(stderr, "无法分配编码器上下文\n");
+        ret = -1;
+        goto cleanup;
+    }
+
+    // 设置更激进的编码参数
+    int64_t input_bit_rate = input_ctx->bit_rate;
+    if (input_bit_rate <= 0) {
+        input_bit_rate = 400000;  // 默认值
+    }
+    // 设置严格的编码参数确保播放兼容性
+    encoder_ctx->bit_rate = input_bit_rate * 0.5;
+    encoder_ctx->rc_max_rate = input_bit_rate * 0.7;
+    encoder_ctx->rc_min_rate = input_bit_rate * 0.3;
+    encoder_ctx->rc_buffer_size = input_bit_rate * 0.7 / 25;
+    encoder_ctx->level = 31;  // 明确设置level 3.1确保广泛兼容
+    encoder_ctx->width = input_ctx->streams[video_stream_index]->codecpar->width;
+    encoder_ctx->height = input_ctx->streams[video_stream_index]->codecpar->height;
+    encoder_ctx->time_base = (AVRational){1, 25};
+    encoder_ctx->framerate = (AVRational){25, 1};
+    encoder_ctx->gop_size = 10;
+    encoder_ctx->max_b_frames = 1;
+    encoder_ctx->pix_fmt = AV_PIX_FMT_YUV420P;
+    
+    // 设置更激进的x264参数
+    av_opt_set_int(encoder_ctx->priv_data, "crf", crf, 0);
+    av_opt_set(encoder_ctx->priv_data, "preset", "slow", 0);  // 使用slow预设提高压缩率
+    // 设置强制兼容性参数
+    av_opt_set(encoder_ctx->priv_data, "profile", "main", 0);
+    av_opt_set(encoder_ctx->priv_data, "movflags", "+faststart", 0);  // 添加流式播放支持
+    av_opt_set(encoder_ctx->priv_data, "tune", "zerolatency", 0);
+    av_opt_set(encoder_ctx->priv_data, "x264-params", "ref=1:bframes=0:subme=2:me=dia:analyse=none:trellis=0", 0);
+    encoder_ctx->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
+    encoder_ctx->thread_count = 4;  // 启用4线程编码
+    encoder_ctx->thread_type = FF_THREAD_FRAME;  // 帧级多线程
+    encoder_ctx->gop_size = 250;  // 更大的GOP提高压缩率
+    encoder_ctx->max_b_frames = 0;  // 禁用B帧提高解码兼容性
+
+    // 打开编码器
+    if (avcodec_open2(encoder_ctx, encoder, NULL) < 0) {
+        fprintf(stderr, "无法打开编码器\n");
+        ret = -1;
+        goto cleanup;
+    }
+
+    // 添加视频流到输出文件
+    AVStream *out_stream = avformat_new_stream(output_ctx, NULL);
+    if (!out_stream) {
+        fprintf(stderr, "无法创建输出流\n");
+        ret = -1;
+        goto cleanup;
+    }
+
+    // 复制编码器参数到输出流
+    if (avcodec_parameters_from_context(out_stream->codecpar, encoder_ctx) < 0) {
+        fprintf(stderr, "无法复制编码器参数\n");
+        ret = -1;
+        goto cleanup;
+    }
+
+    // 写入文件头
+    if (avformat_write_header(output_ctx, NULL) < 0) {
+        fprintf(stderr, "写入文件头失败\n");
+        ret = -1;
+        goto cleanup;
+    }
+
+    packet = av_packet_alloc();
+    if (!packet) {
+        fprintf(stderr, "无法分配AVPacket\n");
+        ret = -1;
+        goto cleanup;
+    }
+
+    // 初始化解码器
+    const AVCodec *decoder = avcodec_find_decoder(input_ctx->streams[video_stream_index]->codecpar->codec_id);
+    if (!decoder) {
+        fprintf(stderr, "未找到解码器\n");
+        ret = -1;
+        goto cleanup;
+    }
+
+    AVCodecContext *decoder_ctx = avcodec_alloc_context3(decoder);
+    if (!decoder_ctx) {
+        fprintf(stderr, "无法分配解码器上下文\n");
+        ret = -1;
+        goto cleanup;
+    }
+
+    if (avcodec_parameters_to_context(decoder_ctx, input_ctx->streams[video_stream_index]->codecpar) < 0) {
+        fprintf(stderr, "无法复制解码器参数\n");
+        ret = -1;
+        goto cleanup;
+    }
+
+    if (avcodec_open2(decoder_ctx, decoder, NULL) < 0) {
+        fprintf(stderr, "无法打开解码器\n");
+        ret = -1;
+        goto cleanup;
+    }
+
+    // 初始化帧和转换上下文
+    AVFrame *frame = av_frame_alloc();
+    AVFrame *tmp_frame = av_frame_alloc();
+    if (!frame || !tmp_frame) {
+        fprintf(stderr, "无法分配帧\n");
+        ret = -1;
+        goto cleanup;
+    }
+
+    // 分配输入帧缓冲区
+    frame->format = decoder_ctx->pix_fmt;
+    frame->width = decoder_ctx->width;
+    frame->height = decoder_ctx->height;
+    if (av_frame_get_buffer(frame, 32) < 0) {
+        fprintf(stderr, "无法分配输入帧缓冲区\n");
+        ret = -1;
+        goto cleanup;
+    }
+
+    // 分配输出帧缓冲区
+    tmp_frame->format = encoder_ctx->pix_fmt;
+    tmp_frame->width = encoder_ctx->width;
+    tmp_frame->height = encoder_ctx->height;
+    if (av_frame_get_buffer(tmp_frame, 32) < 0) {
+        fprintf(stderr, "无法分配输出帧缓冲区\n");
+        ret = -1;
+        goto cleanup;
+    }
+
+    struct SwsContext *sws_ctx = NULL;
+    sws_ctx = sws_getContext(
+        decoder_ctx->width, decoder_ctx->height, decoder_ctx->pix_fmt,
+        encoder_ctx->width, encoder_ctx->height, encoder_ctx->pix_fmt,
+        SWS_BILINEAR, NULL, NULL, NULL);
+    if (!sws_ctx) {
+        fprintf(stderr, "无法创建图像转换上下文\n");
+        ret = -1;
+        goto cleanup;
+    }
+    
+    // 彻底解决目录权限问题
+    if (mkdir("build") != 0 && errno != EEXIST) {
+        fprintf(stderr, "错误：无法创建build目录(errno=%d)，请手动创建并设置写权限\n", errno);
+        ret = -1;
+        goto cleanup;
+    }
+    
+    // 验证目录可写权限
+    FILE *test_file = fopen("build/test_permission.tmp", "w");
+    if (!test_file) {
+        fprintf(stderr, "致命错误：无法写入build目录(errno=%d)，请确保：\n1. 目录存在且有写权限\n2. 没有其他程序锁定该目录\n3. 磁盘空间充足\n", errno);
+        ret = -1;
+        goto cleanup;
+    }
+    fclose(test_file);
+    remove("build/test_permission.tmp");
+
+    // 解码和编码循环
+    while (av_read_frame(input_ctx, packet) >= 0) {
+        if (packet->stream_index == video_stream_index) {
+            // 发送包到解码器
+            if (avcodec_send_packet(decoder_ctx, packet) < 0) {
+                fprintf(stderr, "解码错误\n");
+                continue;
+            }
+
+            // 接收解码后的帧
+            while (avcodec_receive_frame(decoder_ctx, frame) >= 0) {
+                // 转换像素格式
+                sws_scale(sws_ctx, (const uint8_t * const*)frame->data,
+                          frame->linesize, 0, decoder_ctx->height,
+                          tmp_frame->data, tmp_frame->linesize);
+
+                // 设置帧参数
+                tmp_frame->format = encoder_ctx->pix_fmt;
+                tmp_frame->width = encoder_ctx->width;
+                tmp_frame->height = encoder_ctx->height;
+                tmp_frame->pts = frame->pts;
+
+                // 发送帧到编码器
+                if (avcodec_send_frame(encoder_ctx, tmp_frame) < 0) {
+                    fprintf(stderr, "编码错误\n");
+                    break;
+                }
+
+                // 接收编码后的包
+                while (avcodec_receive_packet(encoder_ctx, packet) >= 0) {
+                    // 写入输出文件
+                    if (av_interleaved_write_frame(output_ctx, packet) < 0) {
+                        fprintf(stderr, "写入帧失败\n");
+                        av_packet_unref(packet);
+                        ret = -1;
+                        goto cleanup;
+                    }
+                    av_packet_unref(packet);
+                }
+            }
+        }
+        av_packet_unref(packet);
+    }
+
+    // 刷新编码器
+    avcodec_send_frame(encoder_ctx, NULL);
+    while (avcodec_receive_packet(encoder_ctx, packet) >= 0) {
+        if (av_interleaved_write_frame(output_ctx, packet) < 0) {
+            fprintf(stderr, "写入帧失败\n");
+            av_packet_unref(packet);
+            ret = -1;
+            goto cleanup;
+        }
+        av_packet_unref(packet);
+    }
+
+    // 写入文件尾
+    av_write_trailer(output_ctx);
+
+cleanup:
+    if (packet) av_packet_free(&packet);
+    if (frame) av_frame_free(&frame);
+    if (tmp_frame) av_frame_free(&tmp_frame);
+    if (sws_ctx) sws_freeContext(sws_ctx);
+    if (decoder_ctx) avcodec_free_context(&decoder_ctx);
+    if (input_ctx) avformat_close_input(&input_ctx);
+    if (output_ctx && !(output_ctx->oformat->flags & AVFMT_NOFILE)) {
+        avio_closep(&output_ctx->pb);
+    }
+    if (output_ctx) avformat_free_context(output_ctx);
+    if (encoder_ctx) avcodec_free_context(&encoder_ctx);
+
+    return ret;
+}
+
+int init_video_compressor() {
+    // 新版本FFmpeg不需要显式初始化
+    return 0;
+}
+
+void cleanup_video_compressor() {
+    // 当前无需特殊清理
+}