java ffmpeg获取视频时长

nacos里面配置的ffmpegPath，如果不用这个，也可以自己写一个ffmpegPath的地址

    @NacosValue(value = "${data.ffmpegPath}", autoRefreshed = true)
    private String ffmpegPath;

代码

public  Float getVideoSeconds(String remoteVideoURL){
        try {
            // 定义远程视频的URL
            // 构建FFmpeg命令
 
 
            ProcessBuilder processBuilder = new ProcessBuilder(ffmpegPath, "-i",remoteVideoURL);
 
 
 
            // 读取FFmpeg的输出信息
 
 
            // 创建ProcessBuilder并执行命令
 
            processBuilder.redirectErrorStream(true);
            Process process = processBuilder.start();
 
            // 读取FFmpeg命令输出
            BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
            String line;
 
            String durationInSeconds = null;
            while ((line = reader.readLine()) != null) {
                if (line.contains("Duration:")) {
// 获取包含视频时长信息的行
                    String durationLine = line.split("Duration:")[1].split(",")[0].trim();
                    String[] durationParts = durationLine.split(":");
                    int hours = Integer.parseInt(durationParts[0].trim());
                    int minutes = Integer.parseInt(durationParts[1].trim());
                    double seconds = Double.parseDouble(durationParts[2].trim());
 
                    // 计算总秒数
                    double totalSeconds = hours * 3600 + minutes * 60 + seconds;
                    durationInSeconds = String.valueOf(totalSeconds);
                }
            }
 
            reader.close();
 
            // 打印视频时长
            if (durationInSeconds != null) {
                System.out.println("视频时长：" + durationInSeconds);
                return Float.valueOf(durationInSeconds);
            } else {
                System.out.println("无法获取视频时长。");
                return null;
            }
        } catch (IOException e) {
 
            e.printStackTrace();
            return null;
        }
    }