废话少说接着上一篇的接着介绍：

布局文件：

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical"

android:background="#ffffff"

>

android:id="@+id/rl_top"

android:layout_width="match_parent"

android:layout_height="400dp"

android:layout_above="@+id/tv_progress_time"

android:background="#2a3552" >

android:layout_width="match_parent"

android:layout_height="match_parent"

android:gravity="center"

>

android:id="@+id/vv_vedio_show"

android:layout_width="match_parent"

android:layout_height="match_parent"

/>

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" />

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" />

android:id="@+id/vedio_progress"

android:layout_width="match_parent"

android:layout_height="27dp"

android:layout_alignParentBottom="true"

android:background="@color/transparent" />

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" />

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" />

android:id="@+id/sl"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:layout_above="@+id/rl_bottom"

android:scrollbars="none"

>

android:id="@+id/ll_scroll"

android:layout_width="match_parent"

android:layout_height="110dp"

android:orientation="horizontal"

android:gravity="center_vertical|center_horizontal"

>

android:id="@+id/iv_show"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

/>

android:id="@+id/rl_bottom"

android:layout_width="match_parent"

android:background="#ffffff"

android:layout_alignParentBottom="true"

android:layout_height="100dp" >

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" />

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" />

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" />

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" />

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 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 pausePoints = new ArrayList();

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

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{

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 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();

int interval = 0;

for (int i = 0; i < toatalFrames; i++) {//

int frameTime = Integer.valueOf(interval) / 1000;

keyFrameList.add(frameTime);

interval += duration / toatalFrames;

}

List bits=new ArrayList();

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 cutPostion;

private boolean isEdit=false;

private List cutPostion_temp=new ArrayList();

private List cutPostion_use=new ArrayList();

private List cutPostion_use1=new ArrayList();

protected String mMessage=null;

protected List mMergerList;

private void saveRingtone() {

isEdit = true;

cutPostion_temp.clear();

for(int i=0;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_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

if((i+1)

//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 cutPostion_use1) {

ArrayList flags = info.getFlags();

ArrayList flags_temp=new ArrayList();

boolean isContent=false;

if(flags!=null&&flags.size()>0){

for(int i=0;i

for(int j=0;j

if(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 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 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) mMergerList)

.outputPath(finalPath).build();

FfmpegManager manager = FfmpegManager.getInstance();

manager.stitchVideos(this, videoStitchingRequest,

new CompletionListener() {

@Override

public void onProcessCompleted(String message,List 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 mNewSeeks;

private List mMergeList=new ArrayList();

public TrimTask(Context context, String mFfmpegInstallPath, File srcFile,File destFile,List 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 mNewSeeks,File srcFile,File destFile) {

mMergeList.clear();

for(int i=0;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。