Android 錄制視頻
阿新 • • 發佈:2017-05-14
android private package import public
Activity代碼:
package eoe.demo.Media; import java.io.File; import java.io.IOException; import android.app.Activity; import android.media.MediaRecorder; import android.os.Bundle; import android.os.Environment; import android.view.SurfaceHolder; import android.view.SurfaceView; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button;public class VideoActivity extends Activity {private File myRecAudioFile;private SurfaceView mSurfaceView;private SurfaceHolder mSurfaceHolder;private Button buttonStart;private Button buttonStop;private File dir;private MediaRecorder recorder; @Overridepublic void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.video); mSurfaceView = (SurfaceView) findViewById(R.id.videoView); mSurfaceHolder = mSurfaceView.getHolder(); mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); buttonStart=(Button)findViewById(R.id.start); buttonStop=(Button)findViewById(R.id.stop); File defaultDir = Environment.getExternalStorageDirectory(); String path = defaultDir.getAbsolutePath()+File.separator+"V"+File.separator;//創建文件夾存放視頻 dir = new File(path); if(!dir.exists()){ dir.mkdir(); } recorder = new MediaRecorder(); buttonStart.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { recorder(); } }); buttonStop.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { recorder.stop(); recorder.reset(); recorder.release(); recorder=null; } }); }public void recorder() {try { myRecAudioFile = File.createTempFile("video", ".3gp",dir);//創建臨時文件 recorder.setPreviewDisplay(mSurfaceHolder.getSurface());//預覽 recorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);//視頻源 recorder.setAudioSource(MediaRecorder.AudioSource.MIC); //錄音源為麥克風 recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);//輸出格式為3gp recorder.setVideoSize(800, 480);//視頻尺寸 recorder.setVideoFrameRate(15);//視頻幀頻率 recorder.setVideoEncoder(MediaRecorder.VideoEncoder.H263);//視頻編碼 recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);//音頻編碼 recorder.setMaxDuration(10000);//最大期限 recorder.setOutputFile(myRecAudioFile.getAbsolutePath());//保存路徑 recorder.prepare(); recorder.start(); } catch (IOException e) { e.printStackTrace(); } } }
布局代碼:
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"> <SurfaceView android:id="@+id/videoView" android:visibility="visible" android:layout_width="320px" android:layout_height="240px"> </SurfaceView> <RelativeLayout android:layout_width="fill_parent" android:layout_height="wrap_content"> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="錄制" android:id="@+id/start"/> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_toRightOf="@id/start" android:text="停止" android:id="@+id/stop"/> </RelativeLayout> </LinearLayout>
AndroidManifest.xml:
<!-- 授予該程序錄制聲音的權限 --> <uses-permission android:name="android.permission.RECORD_AUDIO"/> <!-- 授予該程序使用攝像頭的權限 --> <uses-permission android:name="android.permission.CAMERA"/> <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/> <!-- 授予使用外部存儲器的權限 --> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
Android 錄制視頻