我正在开发一款应用程序，首先从视频中提取音频，然后将其转录，然后我想将转录的字幕或字幕附加到原始视频中。一切都运行顺利

我正在开发一款应用程序，首先从视频中提取音频，然后将其转录，然后我想将转录的字幕或副标题附加到原始视频中。

一切运行顺利，除了字幕附加部分，如果我直接在终端运行 FFMPEG 命令，它运行良好，但在 Flutter 中却不行

这是我将字幕附加到视频的代码：

 Future<void> attachCaptionsToVideo(DeepGramResponse deepGramResponse) async {
    var tempDir = await getTemporaryDirectory();

    final outputPath = "${tempDir.path}/outputWithCaptions.mp4";
    final String subtitlePath = deepGramResponse.captionsPath
        .replaceAll('\\', '\\\\')
        .replaceAll(' ', '\\ ');
    final String command =
        '-y -i ${deepGramResponse.videoPath} -vf subtitles=$subtitlePath $outputPath';
    await FFmpegKit.executeAsync(command, (session) async {
      final returnCode = await session.getReturnCode();
      final output = await session.getOutput();
      final error = await session.getFailStackTrace();

      log('FFmpeg command executed with return code: $returnCode');
      if (ReturnCode.isSuccess(returnCode)) {
        log('Captions attached successfully');
        deepGramResponse.copyWith(
          videoPath: outputPath,
        );
        Get.to(() => VideoPlayerScreen(videoPath: outputPath));
      } else {
        log('FFmpeg command failed');
        log('Error output: $output');
        log('Error details: $error');
        Fluttertoast.showToast(
            msg: 'Something went wrong, please try again later');
      }
    });
  }

这是我得到的错误：

[AVFilterGraph @ 0x7b8a3f35f0] '/data/user/0/com.example.blink/app_flutter/captions.srt' 附近没有选项名称[AVFilterGraph @ 0x7b8a3f35f0] 解析过滤器描述时出错：[AVFilterGraph @ 0x7b8a3f35f0] 解析过滤器链'subtitles=/data/user/0/com.example.blink/app_flutter/captions.srt'时出错：重新初始化过滤器时出错！无法将帧注入过滤器网络：参数无效处理流#0：0的解码数据时出错转换失败！