Android自定义录制视频功能

  mediaRecorder.reset();  mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA); //从照相机采集视频  mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);   mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);  mediaRecorder.setVideoFrameRate(3); //每秒3帧  mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H263); //设置视频编码方式  mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);  File videoFile = new File(Environment.getExternalStorageDirectory(), System.currentTimeMillis()+".3gp");  mediaRecorder.setOutputFile(videoFile.getAbsolutePath());  mediaRecorder.setPreviewDisplay(surfaceView.getHolder().getSurface());  mediaRecorder.prepare();//预期准备  mediaRecorder.start();//开始刻录  mediaRecorder.stop();//停止刻录

public class MediaRecorderActivity extends AppCompatActivity {  private SurfaceView sv_mediarecorder_surface;  private MediaRecorder mediaRecorder;  private boolean isStartAndStop=false;  @Override  protected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {      getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);      getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);    }    setContentView(R.layout.activity_mediarecorder);    //获取SurfaceView    sv_mediarecorder_surface = (SurfaceView) findViewById(R.id.sv_mediarecorder_surface);    //实例化媒体录制器    mediaRecorder = new MediaRecorder();  }  //视频录制与暂停的方法  public void startMediaCorder(View view){    Button button= (Button) view;    if (!isStartAndStop) {      if (mediaRecorder==null){        //实例化媒体录制器        mediaRecorder = new MediaRecorder();      }      mediaRecorder.reset();      mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA); //从照相机采集视频      mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);//设置麦克风      //设置保存的格式      mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);      //设置编码格式      mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H263);      mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);      mediaRecorder.setVideoFrameRate(3);      //获取根路径      String sdPath= Environment.getExternalStorageDirectory().getAbsolutePath();      //设置保存的路径      mediaRecorder.setOutputFile(sdPath+"/taoge"+System.currentTimeMillis()+".mp4");      //将画面展示到SurfaceView      mediaRecorder.setPreviewDisplay(sv_mediarecorder_surface.getHolder().getSurface());      //准备      try {        mediaRecorder.prepare();        mediaRecorder.start();      } catch (IOException e) {        e.printStackTrace();      }      button.setText("结束");    }else{      // 为其它应用释放摄像头      mediaRecorder.release();      mediaRecorder = null;      //关闭      button.setText("开始");    }    isStartAndStop=!isStartAndStop;  }}