Android 實現視訊錄製播放
阿新 • • 發佈:2019-02-09
實現類似微信的小視訊功能,可以錄製一個視訊然後播放該視訊。
視訊錄製,使用一個自定義控制元件。
視訊播放:<span style="font-size:14px;">/** * 視訊錄製控制元件 * * @author lip * * @date 2015-3-16 */ public class MovieRecorderView extends LinearLayout implements OnErrorListener { private SurfaceView mSurfaceView; private SurfaceHolder mSurfaceHolder; private ProgressBar mProgressBar; private MediaRecorder mMediaRecorder; private Camera mCamera; private Timer mTimer;// 計時器 private OnRecordFinishListener mOnRecordFinishListener;// 錄製完成回撥介面 private int mWidth;// 視訊解析度寬度 private int mHeight;// 視訊解析度高度 private boolean isOpenCamera;// 是否一開始就開啟攝像頭 private int mRecordMaxTime;// 一次拍攝最長時間 private int mTimeCount;// 時間計數 private File mVecordFile = null;// 檔案 public MovieRecorderView(Context context) { this(context, null); } public MovieRecorderView(Context context, AttributeSet attrs) { this(context, attrs, 0); } @TargetApi(Build.VERSION_CODES.HONEYCOMB) public MovieRecorderView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); mWidth=320; mHeight=240; isOpenCamera=true; mRecordMaxTime=10; LayoutInflater.from(context).inflate(R.layout.moive_recorder_view, this); mSurfaceView = (SurfaceView) findViewById(R.id.surfaceview); mProgressBar = (ProgressBar) findViewById(R.id.progressBar); mProgressBar.setMax(mRecordMaxTime);// 設定進度條最大量 mSurfaceHolder = mSurfaceView.getHolder(); mSurfaceHolder.addCallback(new CustomCallBack()); mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); } /** * * @author liuyinjun * * @date 2015-2-5 */ private class CustomCallBack implements Callback { @Override public void surfaceCreated(SurfaceHolder holder) { if (!isOpenCamera) return; try { initCamera(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } @Override public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { } @Override public void surfaceDestroyed(SurfaceHolder holder) { if (!isOpenCamera) return; freeCameraResource(); } } /** * 初始化攝像頭 * * @author lip * @date 2015-3-16 * @throws IOException */ private void initCamera() throws IOException { if (mCamera != null) { freeCameraResource(); } try { mCamera = Camera.open(); } catch (Exception e) { e.printStackTrace(); freeCameraResource(); } if (mCamera == null) return; setCameraParams(); mCamera.setDisplayOrientation(90); mCamera.setPreviewDisplay(mSurfaceHolder); mCamera.startPreview(); mCamera.unlock(); } /** * 設定攝像頭為豎屏 * * @author lip * @date 2015-3-16 */ private void setCameraParams() { if (mCamera != null) { Parameters params = mCamera.getParameters(); params.set("orientation", "portrait"); mCamera.setParameters(params); } } /** * 釋放攝像頭資源 * * @author liuyinjun * @date 2015-2-5 */ private void freeCameraResource() { if (mCamera != null) { mCamera.setPreviewCallback(null); mCamera.stopPreview(); mCamera.lock(); mCamera.release(); mCamera = null; } } private void createRecordDir() { // File sampleDir = new File(Environment.getExternalStorageDirectory() + File.separator + "im/video/"); File sampleDir = new File(Environment.getExternalStorageDirectory() + File.separator+"RecordVideo/"); //File sampleDir = new File("/video/"); if (!sampleDir.exists()) { sampleDir.mkdirs(); } File vecordDir = sampleDir; // 建立檔案 try { mVecordFile = File.createTempFile("recording", ".mp4", vecordDir);//mp4格式 //LogUtils.i(mVecordFile.getAbsolutePath()); Log.d("Path:",mVecordFile.getAbsolutePath()); } catch (IOException e) { } } /** * 初始化 * * @author lip * @date 2015-3-16 * @throws IOException */ private void initRecord() throws IOException { mMediaRecorder = new MediaRecorder(); mMediaRecorder.reset(); if (mCamera != null) mMediaRecorder.setCamera(mCamera); mMediaRecorder.setOnErrorListener(this); mMediaRecorder.setPreviewDisplay(mSurfaceHolder.getSurface()); mMediaRecorder.setVideoSource(VideoSource.CAMERA);// 視訊源 mMediaRecorder.setAudioSource(AudioSource.MIC);// 音訊源 mMediaRecorder.setOutputFormat(OutputFormat.MPEG_4);// 視訊輸出格式 mMediaRecorder.setAudioEncoder(AudioEncoder.AMR_NB);// 音訊格式 mMediaRecorder.setVideoSize(mWidth, mHeight);// 設定解析度: // mMediaRecorder.setVideoFrameRate(16);// 這個我把它去掉了,感覺沒什麼用 mMediaRecorder.setVideoEncodingBitRate(1 * 1024 * 512);// 設定幀頻率,然後就清晰了 mMediaRecorder.setOrientationHint(90);// 輸出旋轉90度,保持豎屏錄製 mMediaRecorder.setVideoEncoder(VideoEncoder.MPEG_4_SP);// 視訊錄製格式 // mediaRecorder.setMaxDuration(Constant.MAXVEDIOTIME * 1000); mMediaRecorder.setOutputFile(mVecordFile.getAbsolutePath()); mMediaRecorder.prepare(); try { mMediaRecorder.start(); } catch (IllegalStateException e) { e.printStackTrace(); } catch (RuntimeException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } } /** * 開始錄製視訊 * * @author liuyinjun * @date 2015-2-5 // * @param fileName // * 視訊儲存位置 * @param onRecordFinishListener * 達到指定時間之後回撥介面 */ public void record(final OnRecordFinishListener onRecordFinishListener) { this.mOnRecordFinishListener = onRecordFinishListener; createRecordDir(); try { if (!isOpenCamera)// 如果未開啟攝像頭,則開啟 initCamera(); initRecord(); mTimeCount = 0;// 時間計數器重新賦值 mTimer = new Timer(); mTimer.schedule(new TimerTask() { @Override public void run() { // TODO Auto-generated method stub mTimeCount++; mProgressBar.setProgress(mTimeCount);// 設定進度條 if (mTimeCount == mRecordMaxTime) {// 達到指定時間,停止拍攝 stop(); if (mOnRecordFinishListener != null) mOnRecordFinishListener.onRecordFinish(); } } }, 0, 1000); } catch (IOException e) { e.printStackTrace(); } } /** * 停止拍攝 * * @author liuyinjun * @date 2015-2-5 */ public void stop() { stopRecord(); releaseRecord(); freeCameraResource(); } /** * 停止錄製 * * @author liuyinjun * @date 2015-2-5 */ public void stopRecord() { mProgressBar.setProgress(0); if (mTimer != null) mTimer.cancel(); if (mMediaRecorder != null) { // 設定後不會崩 mMediaRecorder.setOnErrorListener(null); mMediaRecorder.setPreviewDisplay(null); try { mMediaRecorder.stop(); } catch (IllegalStateException e) { e.printStackTrace(); } catch (RuntimeException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } } } /** * 釋放資源 * * @author liuyinjun * @date 2015-2-5 */ private void releaseRecord() { if (mMediaRecorder != null) { mMediaRecorder.setOnErrorListener(null); try { mMediaRecorder.release(); } catch (IllegalStateException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } } mMediaRecorder = null; } public int getTimeCount() { return mTimeCount; } /** * @return the mVecordFile */ public File getmVecordFile() { return mVecordFile; } /** * 錄製完成回撥介面 * * @author lip * * @date 2015-3-16 */ public interface OnRecordFinishListener { public void onRecordFinish(); } @Override public void onError(MediaRecorder mr, int what, int extra) { try { if (mr != null) mr.reset(); } catch (IllegalStateException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } } }</span>
佈局檔案:<span style="font-size:14px;">public class MainActivity extends ActionBarActivity { private MovieRecorderView movieRV; private Button startBtn; private Button stopBtn; private Button playBtn; private Button pauseBtn; private SurfaceView playView; private MediaPlayer player; int position; public MainActivity() { } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initViews(); initEvents(); init(); } private void init() { player=new MediaPlayer(); playView=(SurfaceView) this.findViewById(R.id.play_surfaceV); //設定SurfaceView自己不管理的緩衝區 playView.getHolder().setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); playView.getHolder().addCallback(new Callback() { @Override public void surfaceDestroyed(SurfaceHolder holder) { } @Override public void surfaceCreated(SurfaceHolder holder) { if (position>0) { try { //開始播放 play(); //並直接從指定位置開始播放 player.seekTo(position); position=0; } catch (Exception e) { // TODO: handle exception } } } @Override public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { } }); } private void initViews() { movieRV=(MovieRecorderView)findViewById(R.id.moive_rv); //錄製 startBtn=(Button)findViewById(R.id.start_btn); stopBtn=(Button)findViewById(R.id.stop_btn); //播放 playBtn=(Button)findViewById(R.id.play_btn); pauseBtn=(Button)findViewById(R.id.pause_btn); } private void initEvents() { //開始錄製 startBtn.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { movieRV.record(new MovieRecorderView.OnRecordFinishListener() { @Override public void onRecordFinish() { } }); } }); //停止錄製 stopBtn.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { movieRV.stop(); } }); //播放已錄製視訊 playBtn.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { play(); } }); //暫停 pauseBtn.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if(player.isPlaying()) { player.pause(); } else { player.start(); } } }); } @Override protected void onPause() { //先判斷是否正在播放 if (player.isPlaying()) { //如果正在播放我們就先儲存這個播放位置 position=player.getCurrentPosition() ; player.stop(); } super.onPause(); } private void play() { try { Log.d("play:",""); player.reset(); player.setAudioStreamType(AudioManager.STREAM_MUSIC); //設定需要播放的視訊 String path=movieRV.getmVecordFile().getAbsolutePath(); player.setDataSource(path); Log.d("play:",path); //把視訊畫面輸出到SurfaceView player.setDisplay(playView.getHolder()); player.prepare(); //播放 player.start(); } catch (Exception e) { // TODO: handle exception } } }</span>
需要的系統許可權:<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity"> <record.lip.com.videorecord.MovieRecorderView android:id="@+id/moive_rv" android:layout_centerHorizontal="true" android:layout_width="wrap_content" android:layout_height="wrap_content"> </record.lip.com.videorecord.MovieRecorderView> <RelativeLayout android:id="@+id/record_rl" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@id/moive_rv" android:gravity="center" android:layout_centerInParent="true"> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/start_btn" android:text="開始"/> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/stop_btn" android:layout_toRightOf="@id/start_btn" android:text="停止"/> </RelativeLayout> <SurfaceView android:id="@+id/play_surfaceV" android:layout_below="@id/record_rl" android:layout_width="200dp" android:layout_height="200dp" android:layout_centerHorizontal="true"/> <RelativeLayout android:id="@+id/play_rl" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@id/play_surfaceV" android:gravity="center" android:layout_centerInParent="true"> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/play_btn" android:text="播放"/> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/pause_btn" android:text="暫停" android:layout_toRightOf="@id/play_btn"/> </RelativeLayout> </RelativeLayout>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.RECORD_AUDIO"/>
基本的視訊錄製功能就可以實現了。