C++从blob URL下载音频/视频文件？

#include <iostream>
#include <fstream>
#include <curl/curl.h>

// 回调函数，用于将响应数据写入文件
size_t WriteData(void* ptr, size_t size, size_t nmemb, FILE* stream) {
    size_t written = fwrite(ptr, size, nmemb, stream);
    return written;
}

int main() {
    // 初始化libcurl
    curl_global_init(CURL_GLOBAL_DEFAULT);
    CURL* curl = curl_easy_init();

    // 设置请求的URL
    std::string blobUrl = "https://example.com/blob-url";
    curl_easy_setopt(curl, CURLOPT_URL, blobUrl.c_str());

    // 设置回调函数，用于将响应数据写入文件
    FILE* file = fopen("output.mp4", "wb");
    curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteData);
    curl_easy_setopt(curl, CURLOPT_WRITEDATA, file);

    // 发起HTTP请求
    CURLcode res = curl_easy_perform(curl);
    if (res != CURLE_OK) {
        std::cerr << "Failed to download file: " << curl_easy_strerror(res) << std::endl;
    }

    // 清理资源
    curl_easy_cleanup(curl);
    fclose(file);
    curl_global_cleanup();

    return 0;
}