1、許可權

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

2、main

package com.fpt.imagetovideomaster;

import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;

import com.googlecode.javacv.FFmpegFrameRecorder;
import com.googlecode.javacv.FrameRecorder;
import com.googlecode.javacv.cpp.opencv_core;

import java.io.File;
import java.io.IOException;

import static com.googlecode.javacv.cpp.opencv_highgui.cvLoadImage;

public class TwoMain extends Activity {
    public static final String IMAGE_TYPE = ".jpg";
    private Button btn;
    FFmpegFrameRecorder recorder;
    File file;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        btn=findViewById(R.id.main_btn_start);
        btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                imageToMp4();
            }
        });
    }
    private void imageToMp4() {
        // 生成的新檔名
        final String newFileName = "/sdcard/1/test_" + System.currentTimeMillis() + ".mp4";
        final double frameRate = 1;//1表示1秒1個照片，
//
        new Thread() {
            @Override
            public void run() {
                Log.d("test", "開始將圖片轉成視訊啦...frameRate=" + frameRate);
                try {
                    file=new File(newFileName);
                    if (!file.exists()){
                        try {
                                file.createNewFile();
                                Log.d("main", "建立");
                            } catch (IOException e) {

                            }
                    }
//                    for (int i=0;i<100;i++) {
//                        file = new File("/sdcard/1/ok" + i + ".mp4");//houq、、後期優化
//                        if (!file.exists()) {
//                            try {
//                                file.createNewFile();
//                                Log.d("main", "建立");
//                                break;
//                            } catch (IOException e) {
//
//                            }
//                        }
//                        Log.e("main", "continiu");
//                        continue;//終結本次迴圈，
//                    }
                    try{
                        Log.e("main", "luzhi"+file.getPath());
                        Bitmap bitmap=BitmapFactory.decodeFile("/sdcard/1/1.jpg");
                        recorder=new FFmpegFrameRecorder(file,bitmap.getWidth(),bitmap.getHeight(),0);
                        //設定視訊的寬高，這裡設定的是以第一張照片為寬高為基準的。
                    } catch (Exception e){
                        //   Toast.makeText(getApplicationContext(), "recorder", Toast.LENGTH_LONG).show();
                    }
                    recorder.setFormat("mp4");
                    // 錄影幀率
                    recorder.setFrameRate(frameRate);
//                    recorder.setPixelFormat(avutil.AV_PIX_FMT_YUV420P);
                    // 記錄開始
                    recorder.start();
                    int index = 0;
                    while (index < 21) {
                        // 獲取圖片--圖片格式為head1.png,head2.png...head8.png
                        opencv_core.IplImage image = cvLoadImage("/sdcard/1/"
                                 + index
                                + TwoMain.IMAGE_TYPE);
                        recorder.record(image);
                        index++;
                    }
                    Log.d("test", "錄製完成....");
                    // 錄製結束
                    recorder.stop();
                } catch (FrameRecorder.Exception e) {
                    e.printStackTrace();
                }
            }
        }.start();
    }
}


 

3、需要.so檔案；javacpp、javacv，不然會報錯