android视频的编辑（录制，裁剪，合成）（2）
来源：互联网 发布：淘宝智能版首页全屏 编辑：程序博客网 时间：2024/06/05 02:48
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：
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
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