package com.qxueyou.scc.sys.utils;

import com.coremedia.iso.IsoFile;

import java.io.IOException;


public class VideoUtil {



    /**
     * »ñÈ¡ÊÓƵÎļþµÄ²¥·Å³¤¶È(mp4¡¢mov¸ñʽ)
     * @param videoPath
     * @return µ¥Î»ÎªºÁÃë
     */
    public static long getMp4Duration(String videoPath) throws IOException {
        IsoFile isoFile = new IsoFile(videoPath);
        long lengthInSeconds =
                isoFile.getMovieBox().getMovieHeaderBox().getDuration() /
                        isoFile.getMovieBox().getMovieHeaderBox().getTimescale();
        return lengthInSeconds;
    }


    /**
     * µÃµ½ÓïÒô»òÊÓƵÎļþʱ³¤,µ¥Î»Ãë
     * @param filePath
     * @return
     * @throws IOException
     */
    public static long getDuration(String filePath) throws IOException {
        String format = getVideoFormat(filePath);
        long result = 0;
        if("wav".equals(format)){
            result = AudioUtil.getDuration(filePath).intValue();
        }else if("mp3".equals(format)){
            result = AudioUtil.getMp3Duration(filePath).intValue();
        }else if("m4a".equals(format)) {
            result = VideoUtil.getMp4Duration(filePath);
        }else if("mov".equals(format)){
            result = VideoUtil.getMp4Duration(filePath);
        }else if("mp4".equals(format)){
            result = VideoUtil.getMp4Duration(filePath);
        }

        return result;
    }

    /**
     * µÃµ½ÓïÒô»òÊÓƵÎļþʱ³¤,µ¥Î»Ãë
     * @param filePath
     * @return
     * @throws IOException
     */
    public static long getDuration(String filePath,String format) throws IOException {
        long result = 0;
        if("wav".equals(format)){
            result = AudioUtil.getDuration(filePath).intValue();
        }else if("mp3".equals(format)){
            result = AudioUtil.getMp3Duration(filePath).intValue();
        }else if("m4a".equals(format)) {
            result = VideoUtil.getMp4Duration(filePath);
        }else if("mov".equals(format)){
            result = VideoUtil.getMp4Duration(filePath);
        }else if("mp4".equals(format)){
            result = VideoUtil.getMp4Duration(filePath);
        }

        return result;
    }


    /**
     * µÃµ½Îļþ¸ñʽ
     * @param path
     * @return
     */
    public static String getVideoFormat(String path){
        return  path.toLowerCase().substring(path.toLowerCase().lastIndexOf(".") + 1);
    }


}