Java使用ffmpeg.exe获取视频文件时长

àì夳堔傛蜴生んèń 2022-04-13 08:40 259阅读 0赞

/**
    	 * 获取视频总时间
    	 * @param viedo_path    视频路径
    	 * @param ffmpeg_path	ffmpeg路径
    	 * @return
    	 */
    	public static int getVideoTime(String video_path, String ffmpeg_path) {
    		List<String> commands = new java.util.ArrayList<String>();
    		commands.add(ffmpeg_path);
    		commands.add("-i");
    		commands.add(video_path);
    		try {
    			ProcessBuilder builder = new ProcessBuilder();
    			builder.command(commands);
    			final Process p = builder.start();
    			
    			//从输入流中读取视频信息
    	        BufferedReader br = new BufferedReader(new InputStreamReader(p.getErrorStream()));
    	        StringBuffer sb = new StringBuffer();
    	        String line = "";
                while ((line = br.readLine()) != null) {
                    sb.append(line);
                }
    	        br.close();
    	        
    	        //从视频信息中解析时长
    	        String regexDuration = "Duration: (.*?), start: (.*?), bitrate: (\\d*) kb\\/s";
    	        Pattern pattern = Pattern.compile(regexDuration);
    	        Matcher m = pattern.matcher(sb.toString());
    	        if (m.find()) {
    	        	int time = getTimelen(m.group(1));
    	        	log.info(video_path+",视频时长："+time+", 开始时间："+m.group(2)+",比特率："+m.group(3)+"kb/s");
    	        	return time;
    	        }
    		} catch (Exception e) {
    			e.printStackTrace();
    		}
    		
    		return 0;
    	}
    	
    	//格式:"00:00:10.68"
        private static int getTimelen(String timelen){
            int min=0;
            String strs[] = timelen.split(":");
            if (strs[0].compareTo("0") > 0) {
                min+=Integer.valueOf(strs[0])*60*60;//秒
            }
            if(strs[1].compareTo("0")>0){
                min+=Integer.valueOf(strs[1])*60;
            }
            if(strs[2].compareTo("0")>0){
                min+=Math.round(Float.valueOf(strs[2]));
            }
            return min;
        }

转自：[https://blog.csdn.net/cyh1111/article/details/50232363][https_blog.csdn.net_cyh1111_article_details_50232363]

[https_blog.csdn.net_cyh1111_article_details_50232363]: https://blog.csdn.net/cyh1111/article/details/50232363