废话少说接着上一篇的接着介绍：

布局文件：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" 
    android:background="#ffffff"
    >
    
    <RelativeLayout
        android:id="@+id/rl_top"
        android:layout_width="match_parent"
        android:layout_height="400dp"
        android:layout_above="@+id/tv_progress_time"
        android:background="#2a3552" >

        <LinearLayout 
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:gravity="center"
            >
        <VideoView
            android:id="@+id/vv_vedio_show"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            />
    </LinearLayout>
        <ImageView
            android:id="@+id/iv_edit_back"
            android:layout_width="30dp"
            android:layout_height="30dp"
            android:layout_marginLeft="17dp"
            android:layout_marginTop="20dp"
            android:src="@drawable/ic_vedio_back" />

        <ImageView
            android:id="@+id/iv_play_pause"
            android:layout_width="50dp"
            android:layout_height="50dp"
            android:layout_centerInParent="true"
            android:layout_marginBottom="27dp"
            android:layout_marginTop="87dp"
            android:src="@drawable/play_btn_state" />

        <com.tian.videomergedemo.view.VideoEditProgressBar
            android:id="@+id/vedio_progress"
            android:layout_width="match_parent"
            android:layout_height="27dp"
            android:layout_alignParentBottom="true"
            android:background="@color/transparent" />

        <TextView
            android:id="@+id/tv_duration"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_above="@+id/vedio_progress"
            android:layout_alignParentRight="true"
            android:layout_marginRight="10dp"
            android:text="00:00:00"
            android:textColor="#b6c5dc"
            android:textSize="10sp" />
    </RelativeLayout>
    
    
    <TextView
            android:id="@+id/tv_progress_time"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_above="@+id/sl"
            android:layout_centerHorizontal="true"
            android:layout_marginBottom="2dp"
            android:text="00:00:00"
            android:gravity="center"
            android:textColor="#2a3552"
            android:textSize="10sp" />
    
    
     <com.tian.videomergedemo.view.ObservableScrollView 
        android:id="@+id/sl"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_above="@+id/rl_bottom"
        android:scrollbars="none"
        >
        <LinearLayout 
            android:id="@+id/ll_scroll"
            android:layout_width="match_parent"
            android:layout_height="110dp"
            android:orientation="horizontal"
            android:gravity="center_vertical|center_horizontal"
            >
        <com.tian.videomergedemo.view.EditVideoImageBar 
            android:id="@+id/iv_show"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            />
        </LinearLayout>
    </com.tian.videomergedemo.view.ObservableScrollView>
    
    
    
    
    <RelativeLayout
        android:id="@+id/rl_bottom"
        android:layout_width="match_parent"
        android:background="#ffffff"
        android:layout_alignParentBottom="true"
        android:layout_height="100dp" >
        <ImageView
            android:id="@+id/iv_btn_cut"
            android:layout_width="60dp"
            android:layout_height="60dp"
            android:layout_alignParentBottom="true"
            android:layout_centerHorizontal="true"
            android:layout_marginBottom="25dp"
            android:src="@drawable/video_cut" />

        <ImageView
            android:id="@+id/iv_delete"
            android:layout_width="40dp"
            android:layout_height="40dp"
            android:layout_alignParentBottom="true"
            android:layout_marginBottom="35dp"
            android:layout_marginRight="50dp"
            android:layout_toLeftOf="@id/iv_btn_cut"
            android:src="@drawable/video_delete" />

        <ImageView
            android:id="@+id/iv_merge"
            android:layout_width="40dp"
            android:layout_height="40dp"
            android:layout_alignParentBottom="true"
            android:layout_marginBottom="35dp"
            android:layout_marginLeft="50dp"
            android:layout_toRightOf="@id/iv_btn_cut"
            android:src="@drawable/video_merge" />

    </RelativeLayout>
    
        <View
            android:layout_width="1dp"
            android:layout_below="@+id/tv_progress_time"
            android:layout_height="match_parent"
            android:layout_centerHorizontal="true"
            android:layout_marginBottom="85dp"
            android:background="#f1404b" />
</RelativeLayout>

效果图如下：

这里写图片描述

编辑代码：

package com.tian.videomergedemo;

import java.io.File;
import java.util.ArrayList;
import java.util.List;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.graphics.Bitmap;
import android.graphics.Matrix;
import android.graphics.drawable.BitmapDrawable;
import android.media.MediaMetadataRetriever;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.media.MediaPlayer.OnPreparedListener;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.VideoView;

import com.tian.videomergedemo.bean.AttachsBeen;
import com.tian.videomergedemo.bean.ComposeInfo;
import com.tian.videomergedemo.bean.RecordDetail;
import com.tian.videomergedemo.dao.DatabaseContext;
import com.tian.videomergedemo.dao.RecordDao;
import com.tian.videomergedemo.inter.CompletionListener;
import com.tian.videomergedemo.inter.ScrollViewListener;
import com.tian.videomergedemo.manager.FfmpegManager;
import com.tian.videomergedemo.manager.VideoStitchingRequest;
import com.tian.videomergedemo.utils.BitmapUtils;
import com.tian.videomergedemo.utils.TimeFormatUtils;
import com.tian.videomergedemo.view.EditVideoImageBar;
import com.tian.videomergedemo.view.ObservableScrollView;
import com.tian.videomergedemo.view.VideoEditProgressBar;


/**
 * 
 * 视频的编辑界面
 * 
 * @author TCX
 *
 */
@SuppressLint("NewApi") public class EditVedioActivity extends Activity implements OnClickListener, ScrollViewListener {
    
    
    private int screenWidth;
    private int screenHeight;
    private String mVedioPath;
    private ComposeInfo info;
    private RecordDao dao;
    private AttachsBeen bean;
    private VideoView mVideoView;
    private VideoEditProgressBar mVedioBar;
    private ImageView mPlayerController;
    private TextView mVideoDuration;
    private ImageView mCutter;
    private ImageView mDelete;
    private ImageView mmerge;
    private ArrayList<Integer> keyFrameList;
    private EditVideoImageBar mImageLists;
    protected int mDuration=0;
    private int mBottomLength=1;
    private int mDragPosition=0;//手势拖动的距离
    private boolean isPlaying=false;
    
    
    
    
    private Handler mHandler=new Handler(){

        @Override
        public void dispatchMessage(Message msg) {
            super.dispatchMessage(msg);
            switch (msg.what) {
            case 0://拖动更新
                if(!mVideoView.isPlaying()&&!isPlaying){
                    //非播放状态
                    mVideoView.seekTo(mDragPosition);
                }else{
                    //播放状态
                    int mDragPosition1 = mVideoView.getCurrentPosition();
                    int currentPosition=0;
                    if(mDuration!=0){
                        currentPosition=mBottomLength*mDragPosition1/mDuration;
                    }else{
                        if(currentPosition<=100){
                            currentPosition=mDragPosition1;
                        }
                    }
                    mScrollView.scrollTo(currentPosition==0?1:currentPosition, 0);
                    mCurrentPosition=currentPosition;
                    mHandler.sendEmptyMessageDelayed(0, 100);
                }
                int currentPosition = mVideoView.getCurrentPosition();
                mVideoEditProgressBar.setProgress((currentPosition*1.0f/mDuration));
                break;
            case 1://视频播放或者暂停action
                
                break;
            case 3:
                mVideoView.pause();
                break;
            case 100:
                mererVideo();
                break;
            case 101:
                reRreshUI();
                break;
            default:
                break;
            }
            
        }
        
    };
    /**
     * Scroller的滑动监听
     * @param scrollView
     * @param x
     * @param y
     * @param oldx
     * @param oldy
     */
    @Override
    public void onScrollChanged(ObservableScrollView scrollView, int x, int y,
            int oldx, int oldy,boolean isByUser) {
        if(x>=0){
            this.mCurrentPosition=x;
            mImageLists.showSelectArea(true);
            mBottomLength = mImageLists.getMeasuredWidth();
            if(mBottomLength!=0){
                mDragPosition = mDuration*x/mBottomLength;
            }
            if(!mVideoView.isPlaying()&&!isPlaying){
                mHandler.sendEmptyMessage(0);
            }
            currentTime.setText(TimeFormatUtils.formatLongToTimeStr(mDragPosition)+"");
        }
        
    }
    
    private TextView currentTime;
    private ObservableScrollView mScrollView;
    private AlertDialog alertDialog;
    
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.activity_edit_vedio);

        getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
        WindowManager windowManager = (WindowManager) getApplication().
                getSystemService(getApplication().WINDOW_SERVICE);
        screenWidth = windowManager.getDefaultDisplay().getWidth();
        screenHeight = windowManager.getDefaultDisplay().getHeight();
        
        mVedioPath = getIntent().getStringExtra("vedio_path");
        info=new ComposeInfo();
        info.setPath(mVedioPath);
        if(dao==null){
            dao=new RecordDao(this);
        }
        
        bean = new AttachsBeen();
        bean.setAchsPath(mVedioPath);
        bean = dao.isExist(bean);
        info.setTips(bean.getTips());
        info.setFlags(bean.getFlags());
        
        
        initView();
        init();
        
       
        
        
        
    }

    /**
     * 初始化页面控件
     */
    private void initView() {
        mVideoView = (VideoView)this.findViewById(R.id.vv_vedio_show);
        View backView=this.findViewById(R.id.iv_edit_back);
        backView.setOnClickListener(this);
        mPlayerController = (ImageView)this.findViewById(R.id.iv_play_pause);
        mPlayerController.setOnClickListener(this);
        mVideoDuration = (TextView)this.findViewById(R.id.tv_duration);
        mCutter = (ImageView)this.findViewById(R.id.iv_btn_cut);
        mCutter.setOnClickListener(this);
        mDelete = (ImageView)this.findViewById(R.id.iv_delete);
        mDelete.setOnClickListener(this);
        mmerge = (ImageView)this.findViewById(R.id.iv_merge);
        mmerge.setOnClickListener(this);
        mImageLists = (EditVideoImageBar)this.findViewById(R.id.iv_show);
        
        mVideoEditProgressBar = (VideoEditProgressBar)this.findViewById(R.id.vedio_progress);
        
        
        currentTime = (TextView)this.findViewById(R.id.tv_progress_time);
        
        
        mScrollView = (ObservableScrollView)this.findViewById(R.id.sl);
        
        mScrollView.setScrollViewListener(this);
        mImageLists.setOnClickListener(new OnClickListener() {
            
            @Override
            public void onClick(View v) {
                mImageLists.showSelectArea(false);
            }
        });
        LinearLayout ll_wave_content = (LinearLayout)this.findViewById(R.id.ll_scroll);
        ll_wave_content.setPadding(screenWidth/2, 0, screenWidth/2, 0);
    }

    
    
    /**
     * 初始化参数生成
     */
    private void init() {
        
        mImageLists.clearPosition();
        initVideoInfo();
        
        mVideoEditProgressBar.clearPoint();
        mVideoEditProgressBar.setPausePoints(info.getPausePoints());
        final ArrayList<Float> pausePoints = new ArrayList<Float>();
        mVideoView.setVideoPath(mVedioPath);
        mVideoView.setOnPreparedListener(new OnPreparedListener() {
            @Override
            public void onPrepared(MediaPlayer mp) {
                
                mDuration = mp.getDuration();       
//              mVideoView.seekTo(1);//避免显示黑屏   
                mVideoDuration.setText(TimeFormatUtils.formatLongToTimeStr(mDuration)+"");
                
                if(info.getFlags()!=null&&!info.getFlags().isEmpty()){
                    for (int i = 0; i <info.getFlags().size(); i++) {
                        Integer integer = info.getFlags().get(i);
                        pausePoints.add(integer*1.0f/mDuration);   
                    }
                }
                if (pausePoints != null && pausePoints.size() > 0) {
                    mVideoEditProgressBar.setPausePoints(pausePoints);
                }
                mVideoView.start();
                mHandler.sendEmptyMessageDelayed(3, 100);
                
            }
        });
//      mVideoView.seekTo(1);
        mVideoView.setOnCompletionListener(new OnCompletionListener() {

            @Override
            public void onCompletion(MediaPlayer mp) {
                isPlayCompletion=true;
                isPlaying=false;
                mPlayerController.getDrawable().setLevel(1);
                mScrollView.scrollTo(mDragPosition, 0);
            }
        });
    }
    private boolean isPlayCompletion=false;
    
    
    /**
     * 初始化视频文件信息
     */
    private void initVideoInfo(){
        File playFile=new File(mVedioPath);
        if(playFile.exists()){
            new ExtractTask(mVedioPath).execute();//执行抽取关键帧的异步任务
        }else{
            Toast.makeText(this, "请检查视频文件是否存在！", 0).show();
        }
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
        case R.id.iv_edit_back://返回按钮
            if(isEdit){
                showTip();
            }else{
                finish();
            }
            break;
        case R.id.iv_play_pause://视频暂停/开始
            playVideo();
            break;
        case R.id.iv_btn_cut://裁剪按钮
            setCurrentPostion();
            
            break;
        case R.id.iv_delete://删除按钮
            cutVideo();
            break;
        case R.id.iv_merge://合并按钮
            if(isEdit){//如果被编辑了
                showTip();
            }else{
                Toast.makeText(EditVedioActivity.this, "您还未对视频进行编辑！", 0).show();
            }
            break;
            
        case R.id.tv_yes:
            //TODO
            saveFlag();//保存重置的标记点
//          EventBus.getDefault().post(new StringMessage(mVedioPath));
            alertDialog.dismiss();
            finish();
            break;
        case R.id.tv_no://不保存
            alertDialog.dismiss();
            finish();
            break;
        default:
            break;
        }
    }
    
    
    /**
     * 音频的裁剪删除操作
     */
    protected void cutVideo() {
        cutPostion = mImageLists.getCutPostion();
            if(cutPostion!=null&&cutPostion.size()>0){
                onSave();
            }else{
                Toast.makeText(this, "请选择删除视频片段！", 0).show();
            }
    }
    
    
     /**
     * 进行断点处理
     */
    private void setCurrentPostion(){
        mImageLists.setCutPostion(mCurrentPosition);
    }
    
    
    /**
     * 显示是否保存编辑的提示
     */
    private void showTip(){
        if (alertDialog == null) {
            alertDialog = new AlertDialog.Builder(this)
                    .create();
        }
        alertDialog.show();
        View tipView = View.inflate(this, R.layout.edit_alert_layout, null);
        View tv_yes = (TextView) tipView.findViewById(R.id.tv_yes);
        //不再提醒
        tv_yes.setOnClickListener(this);
        tipView.findViewById(R.id.tv_no).setOnClickListener(this);
        alertDialog.setContentView(tipView);

    }
    @Override
    public void onBackPressed() {
        if(isEdit){
            showTip();
        }else{
            super.onBackPressed();
        }
    }
    
    
    
    /**
     * 播放控制
     */
    private void playVideo() {
        
        if(isPlayCompletion){
            mDragPosition=0;
            mScrollView.scrollTo(mDragPosition, 0);
            isPlayCompletion=false;
        }
        if(mVideoView.isPlaying()){
            isPlaying=false;
            mVideoView.pause();
            mPlayerController.getDrawable().setLevel(1);
        }else{
            isPlaying=true;
//          mVideoView.seekTo(mDragPosition);
            mPlayerController.getDrawable().setLevel(2);
            mVideoView.start();
        }
        
        mHandler.sendEmptyMessage(0);
        
    }
    private int width1;
    private VideoEditProgressBar mVideoEditProgressBar;

    /**
     * 抽取关键帧的异步任务
     * @author howie
     *
     */
    class ExtractTask extends AsyncTask<Void, Void, Bitmap>{
        private String path;
        private ProgressDialog progressDialog1;
        
        public ExtractTask(String path) {
            super();
            this.path = path;
        }
        
        @Override
        protected void onPreExecute() {
            super.onPreExecute();
            if(progressDialog1==null){
                progressDialog1 = ProgressDialog.show(EditVedioActivity.this,
                        "加载中...", "请稍等...", true);
            }else{
                progressDialog1.show();
            }
            
        }
        @Override
        protected Bitmap doInBackground(Void... arg0) {
            return BitmapUtils.addHBitmap(addFrames(path));
        }
        @SuppressLint("NewApi")
        @Override
        protected void onPostExecute(Bitmap bitmaps) {
            super.onPostExecute(bitmaps);
            progressDialog1.dismiss();
            progressDialog1.cancel();
            progressDialog1=null;
            mImageLists.setBackground(new BitmapDrawable(bitmaps));
            mHandler.sendEmptyMessage(0);
        }
        
    }
    
    
    
    
     private List<Bitmap> addFrames(String path) {
        MediaMetadataRetriever retriever = new MediaMetadataRetriever();
        retriever.setDataSource(path);
        // 取得视频的长度(单位为毫秒)
        String time = retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_DURATION);
        int duration = Integer.parseInt(time);
        int toatalFrames = duration / 1000;
        keyFrameList = new ArrayList<Integer>();
        int interval = 0;

        for (int i = 0; i < toatalFrames; i++) {//
            int frameTime = Integer.valueOf(interval) / 1000;
            keyFrameList.add(frameTime);
            interval += duration / toatalFrames;   
        }
        List<Bitmap> bits=new ArrayList<Bitmap>();
        for (int i = 0; i < keyFrameList.size(); i++) {
            Bitmap bitmap = retriever.getFrameAtTime(keyFrameList.get(i) * 1000 * 1000,MediaMetadataRetriever.OPTION_CLOSEST_SYNC);
            if(bitmap!=null){
                int bmpWidth=bitmap.getWidth();   
                int bmpHeight=bitmap.getHeight();  
                float scale=(float) 0.7;
                /* 产生reSize后的Bitmap对象 */  
                Matrix matrix = new Matrix();  
                matrix.postScale(scale, scale);  
                Bitmap resizeBmp = Bitmap.createBitmap(bitmap,0,0,bmpWidth,   
                        bmpHeight,matrix,true);
                bits.add(resizeBmp);
            }
        }
        return bits;
    }
    private int mCurrentPosition=0;
    
    
    
    
    
    
    /**
     * 删除删除片段操作
     */
    private void onSave() {
        saveRingtone();

    }
    private int mNewFileKind;

    private File outFile;
    private List<float[]> cutPostion;
    private boolean isEdit=false;
    private List<long[]> cutPostion_temp=new ArrayList<long[]>();
    private List<long[]> cutPostion_use=new ArrayList<long[]>();
    private List<long[]> cutPostion_use1=new ArrayList<long[]>();
    protected String mMessage=null;
    protected List<String> mMergerList;
    private void saveRingtone() {
        isEdit = true;
        cutPostion_temp.clear();
        for(int i=0;i<cutPostion.size();i++){
            long[] temp_fs=new long[2];
            float[] fs = cutPostion.get(i);
            
            double start=fs[0]*mDuration/mBottomLength;
            double end=fs[1]*mDuration/mBottomLength;
            
            temp_fs[0] = (long) start;
            temp_fs[1] = (long) end;
            cutPostion_temp.add(temp_fs);
        }
        cutPostion_use.clear();
        
        //头部开始计算
        long[] lg_f=new long[2];
        lg_f[0]=0;
        lg_f[1]=0;
        cutPostion_use.add(lg_f);
        //添加选中的区间
        for(int i=0;i<cutPostion_temp.size();i++){
            cutPostion_use.add(cutPostion_temp.get(i));
        }
        //最后的默认选中区间
        long[] lg_e=new long[2];
        lg_e[0]=mDuration;
        lg_e[1]=mDuration;
        cutPostion_use.add(lg_e);
        cutPostion_use1.clear();
        
        //非选中区间集合
        for(int i=0;i<cutPostion_use.size();i++){
            if((i+1)<cutPostion_use.size()){
                //不超边界
                if((cutPostion_use.get(i+1)[0]-cutPostion_use.get(i)[1])!=0){
                    //所取区域的帧数不能为0，即去除时间段为0 的区间片段
                    long[] lon=new long[2];
                    lon[0]=cutPostion_use.get(i)[1];
                    lon[1]=cutPostion_use.get(i+1)[0];
                    cutPostion_use1.add(lon);
                }
            }
        }
        //合并前重置标记点集合
        resetFlag(cutPostion_use1);
        String workingPath=getRecordFileFolder()+"/trim";
        //裁剪操纵开始执行
        trimVideo(workingPath,cutPostion_use1);
    
    
    }

    
    /**
     * 重置标记集合
     */
    private void resetFlag(List<long[]> cutPostion_use1) {
         ArrayList<Integer> flags = info.getFlags();
         ArrayList<Integer> flags_temp=new ArrayList<Integer>();
        boolean isContent=false;
        if(flags!=null&&flags.size()>0){
            for(int i=0;i<flags.size();i++){
                for(int j=0;j<cutPostion_use1.size();j++){
                    if(flags.get(i)<cutPostion_use1.get(j)[1]&&flags.get(i)>cutPostion_use1.get(j)[0]){
                        isContent=true;
                    }
                }
                if(isContent){
                    flags_temp.add(flags.get(i));
                }
            }
            bean.setFlags(flags_temp);
            
            
        }
        
         
        
        
        
        
    }

    /**
     * 裁剪视频
     */
    private void trimVideo(String workingPath, List<long[]> newSeeks){
        progressDialog = ProgressDialog.show(EditVedioActivity.this,
                "裁剪中...", "请稍等...", true);
        File storagePath = new File(workingPath);             
        storagePath.mkdirs();  
        FfmpegManager manager = FfmpegManager.getInstance();
        File file = new File(mVedioPath);
        boolean exists = file.exists();
        manager.trimVideo(EditVedioActivity.this, file, storagePath, newSeeks, new CompletionListener() {
            @Override
            public void onProcessCompleted(String message,List<String> merger) {   
                if(merger!=null&&merger.size()>0){
                    mMergerList=merger;
                    mHandler.sendEmptyMessage(100);
                }
            }
        });
    }
    
    
    /**
     * 合并裁剪过后的视频
     */
    private void mererVideo(){
        String workingPath1=getRecordFileFolder()+"/merge";
        File storagePath1 = new File(workingPath1);  
        storagePath1.mkdirs();
        File myMovie = new File(storagePath1, String.format("cut-output-%s.mp4", System.currentTimeMillis()+"")); 
        finalPath = myMovie.getAbsolutePath();
        
        VideoStitchingRequest videoStitchingRequest = new VideoStitchingRequest.Builder()
        .inputVideoFilePath((ArrayList<String>) mMergerList)
        .outputPath(finalPath).build();
        FfmpegManager manager = FfmpegManager.getInstance();
        manager.stitchVideos(this, videoStitchingRequest,
        new CompletionListener() {
            @Override
            public void onProcessCompleted(String message,List<String> merger) {
                mHandler.sendEmptyMessage(101);
                mMessage=message;
            }
        });
    }
    
    
private void reRreshUI(){
        progressDialog.dismiss();
        progressDialog.cancel();
        progressDialog=null;
        if(mMessage!=null){
            Toast.makeText(this, "编辑成功！", Toast.LENGTH_SHORT).show();
            isEdit=true;//已经编辑过了
            mVedioPath=finalPath;
            init();
            
        }else{
            
        }
        
    }
    private static final String fileFolder = Environment.getExternalStorageDirectory().getAbsolutePath()+"/jwzt_recorder";
    private ProgressDialog progressDialog;
    private String finalPath;
    private String getRecordFileFolder() {
        File file = new File(fileFolder);
        if (!file.exists()) {
            file.mkdir();
        }
        return fileFolder;
    }

    
    /**
     * 标记保存操作
     */
    private void saveFlag() {
        RecordDao recordDao=new RecordDao(new DatabaseContext(this));
        RecordDetail bean=new RecordDetail();
        bean.setName(getVideoName(mVedioPath));
        bean.setFormat("mp4");
        bean.setPath(mVedioPath);
        bean.setMarks(info.getTips());//断点拍摄的点的进度的值
        bean.setFlags(info.getFlags());
        recordDao.add(bean);
        
    }
    
    
    private String getVideoName(String path){
        int slash = path.lastIndexOf("/");
         int dot = path.lastIndexOf(".");
        String substring = path.substring(slash+1, dot);
        return substring;
        
    }
    

}

FFmpeg裁剪线程：

package com.tian.videomergedemo.task;

import java.io.BufferedReader;
import java.io.File;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;

import android.content.Context;
import android.util.Log;

import com.tian.videomergedemo.inter.CompletionListener;
import com.tian.videomergedemo.utils.TimeFormatUtils;

/**
 * @author TCX
 */
public class TrimTask implements Runnable {

    private Context context;
//    private VideoStitchingRequest videoStitchingRequest;
    private CompletionListener completionListener;
    private String mFfmpegInstallPath;
    private File srcFile;
    private File destFile;
    private List<long[]> mNewSeeks;
    private List<String> mMergeList=new ArrayList<String>();
    public TrimTask(Context context, String mFfmpegInstallPath, File srcFile,File destFile,List<long[]> mNewSeeks, CompletionListener completionListener) {
        this.context = context;
        this.mFfmpegInstallPath = mFfmpegInstallPath;
//        this.videoStitchingRequest = stitchingRequest;
        this.completionListener = completionListener;
        this.srcFile=srcFile;
        this.destFile=destFile;
        this.mNewSeeks=mNewSeeks;
        
    
    }


    @Override
    public void run() {
        trimVideo(context, mFfmpegInstallPath, completionListener, mNewSeeks, srcFile, destFile);
    }

    /**
     * @param context
     * @param mFfmpegInstallPath
     * @param videoStitchingRequest
     * @param completionListener
     */
    private void trimVideo(Context context, String mFfmpegInstallPath,  final CompletionListener completionListener,List<long[]> mNewSeeks,File srcFile,File destFile) {

        mMergeList.clear();
        for(int i=0;i<mNewSeeks.size();i++){
            
            File myMovie = new File(destFile, String.format("0cut_output-%s.mp4", System.currentTimeMillis()+"")); 
            mMergeList.add(myMovie.getAbsolutePath());
            String startTime=TimeFormatUtils.formatLongToTimeStr((int)mNewSeeks.get(i)[0]);
            String durationTime=TimeFormatUtils.formatLongToTimeStr((int)(mNewSeeks.get(i)[1]-mNewSeeks.get(i)[0]));
//          ffmpeg -ss 00:00:20 -t 00:00:10 -i D:/MyVideo.mpg -vcodec copy -acopy copy D:/Split.mpg
//          String [] ffmpegTrimCommand={mFfmpegInstallPath,"-ss" ,startTime, "-t",durationTime,  "-i" ,srcFile.getAbsolutePath(), "-vcodec","copy" , "-acopy","copy",myMovie.getAbsolutePath(),"-y"};
            
            //切割的命令行
            String [] ffmpegTrimCommand={mFfmpegInstallPath,"-i" ,srcFile.getAbsolutePath(),"-vcodec", "copy", "-acodec", "copy","-ss",startTime ,"-t" ,  durationTime,myMovie.getAbsolutePath(),"-y"};
            try {
                Process ffmpegProcess = new ProcessBuilder(ffmpegTrimCommand)
                        .redirectErrorStream(true).start();

                String line;

                BufferedReader reader = new BufferedReader(
                        new InputStreamReader(ffmpegProcess.getInputStream()));
                Log.e("***", "*******Starting FFMPEG");
                while ((line = reader.readLine()) != null) {
                    Log.e("***", "***" + line + "***");
                }
                Log.e(null, "****ending FFMPEG****");
                ffmpegProcess.waitFor();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }

        //裁剪完成回调接口（MergeList为裁剪后短视频的路径集合）
          completionListener.onProcessCompleted("Video trim Comleted",mMergeList);

    }
    
    
    /**
     * 将播放的进度转换成类似00:00:01.000”这种形
     * @param progressPosition
     * @return
     */
    public static  String convertToStr(int progressPosition){
        //先求出剩余的余数的毫
        int remain=progressPosition%1000;
        //求出整数的秒数（可能大于60秒，如果大于60秒则要转换为分钟
        int seconds=progressPosition/1000;
        int minutes=seconds/60;
        //求余数求出剩余的秒数
        int remainSecond=seconds%60;
        String millSeconds=remain+"";
        if(remain<10){
            millSeconds="00"+millSeconds;
        }else if(remain<100){
            millSeconds="0"+millSeconds;
        }
        String second=remainSecond+"";
        if(remainSecond<10){
            second="0"+second;
        }
        String minute=minutes+"";
        if(minutes<10){
            minute="0"+minute;
        }
        return "00:"+minute+":"+second+"."+millSeconds;
    }

    
    
    
    
}

ok,一些基本的功能类就这些了。

github地址：
https://github.com/T-chuangxin/VideoMergeDemo