Android自定义录制视频

2019-11-08 00:37:07

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Android录制视频MediaRecorder+SurfaceView

先看效果图：这里写图片描述

<1>将视频动画显示到SurfaceView控件上<2>使用MediaRecorder类进行视频的录制常用的方法： 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

下面看代码：

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; }}

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