Xcode: Integrate FFmpeg 7+ with Swift

import Foundation

class FFmpegManager {

    /// 获取 FFmpeg 版本号与配置信息 (用于测试集成是否成功)
    static func getFFmpegVersion() -> String {
        guard let versionPtr = av_version_info() else {
            return "Unknown"
        }
        let version = String(cString: versionPtr)
        return version
    }

    /// 测试打开一个网络流 (需要启用网络权限)
    static func testNetworkStream(url: String) {
        // 1. 初始化网络模块 (FFmpeg 4.0 以后大部分 init 已废弃，但 network_init 保留)
        avformat_network_init()

        var formatContext: UnsafeMutablePointer<AVFormatContext>? = nil
        let urlString = url.cString(using: .utf8)

        // 2. 尝试打开输入流
        let result = avformat_open_input(&formatContext, urlString, nil, nil)
        if result < 0 {
            print("❌ Failed to open stream, error code: \\(result)")
            return
        }

        print("✅ Successfully opened stream!")

        // 3. 获取流信息
        if avformat_find_stream_info(formatContext, nil) >= 0 {
            let duration = formatContext?.pointee.duration ?? 0
            print("Video duration: \\(duration) microseconds")
        }

        // 4. 释放资源
        avformat_close_input(&formatContext)
        avformat_network_deinit()
    }
}