package com.boying.common;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;

public class ConvetorUtil {
    private static String ffmpegEXE = "E:\\HK\\ffmpeg-7.0.1-essentials_build\\bin\\ffmpeg.exe";
    public static void convetor(String videoInputPath, String videoOutPath) throws Exception {
        List<String> command = new ArrayList<String>();
        command.add(ffmpegEXE);
        command.add("-i");
        command.add(videoInputPath);
        command.add("-c");
        command.add("copy");
        command.add("-an");
        command.add(videoOutPath);
        ProcessBuilder builder = new ProcessBuilder(command);
        Process process = null;
        try {
            process = builder.start();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        // 使用这种方式会在瞬间大量消耗CPU和内存等系统资源，所以这里我们需要对流进行处理
        InputStream errorStream = process.getErrorStream();
        InputStreamReader inputStreamReader = new InputStreamReader(errorStream);
        BufferedReader br = new BufferedReader(inputStreamReader);
        String line = "";
        while ((line = br.readLine()) != null) {
        }
        if (br != null) {
            br.close();
        }
        if (inputStreamReader != null) {
            inputStreamReader.close();
        }
        if (errorStream != null) {
            errorStream.close();
        }

    }
}