카메라 영상 동영상 파일로 저장

안드로이드에서 MediaRecorder 를 이용하여 카메라 영상을 동영상 파일로 저장하는 것이 겁나게 간단하다~

설명이 필요 없을 듯...

 

public class VideoRecordActivity extends Activity implements Callback {
 
    private Camera cam;
    private MediaRecorder mediaRecorder;
    private SurfaceView sv;
    private SurfaceHolder sh;
 
    private boolean recording = false;
    private Button btnRec = null;
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_video_record);
 
        btnRec = (Button) findViewById(R.id.btnRec);
        btnRec.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (recording) {
                    Toast.makeText(VideoRecordActivity.this, "stop", Toast.LENGTH_LONG).show();
                    mediaRecorder.stop();
                    mediaRecorder.release();
                    cam.lock();
                    recording = false;
 
                    btnRec.setText("레코딩");
                } 
                else {
                    Toast.makeText(VideoRecordActivity.this, "succeed", Toast.LENGTH_LONG).show();
                    
                    try {
                        mediaRecorder = new MediaRecorder();
                        cam.unlock();
                        mediaRecorder.setCamera(cam);
                        mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
                        mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
 
                        mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
 
                        mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);
                        // mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.MPEG_4_SP);
                        mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);
 
                        mediaRecorder.setVideoEncodingBitRate(1024 * 1024);
                        mediaRecorder.setVideoSize(640, 480);
                        mediaRecorder.setVideoFrameRate(15);
 
                        // 최대 녹화시간 설정
                        // mediaRecorder.setMaxDuration(max_duration_ms);
                        // 최대 파일 사이즈 설정
                        // mediaRecorder.setMaxFileSize(max_filesize_bytes);
 
                        // mediaRecorder.setOrientationHint(90);
                        mediaRecorder.setOutputFile("/storage/sdcard0/rec.mp4");
                        // mediaRecorder.setPreviewDisplay(sh.getSurface());
                        mediaRecorder.prepare();
                        mediaRecorder.start();
                        recording = true;
                        Toast.makeText(VideoRecordActivity.this, 
                                        "start", 
                                        Toast.LENGTH_LONG).show();
                        btnRec.setText("중단");
                    } 
                    catch (Exception ex) {
                        ex.printStackTrace();
                        mediaRecorder.release();
 
                        Toast.makeText(VideoRecordActivity.this, 
                                        "error:" + ex.getMessage(), 
                                        Toast.LENGTH_LONG).show();
                        return;
                    }
                }
            }
        });
    }
 
    @Override
    protected void onStart() {
        super.onStart();
 
        setting();
    }
 
    private void setting() {
        cam = Camera.open(0);
        // cam.setDisplayOrientation(90);
        sv = (SurfaceView) findViewById(R.id.surfaceView);
        sh = sv.getHolder();
        sh.addCallback(this);
        sh.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
    }
 
    @Override
    public void surfaceCreated(SurfaceHolder holder) {
        try {
            if (cam != null) {
                cam.setPreviewDisplay(holder);
                cam.startPreview();
            }
        } catch (IOException e) {
        }
    }
 
    @Override
    public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
        refreshCamera(cam);
 
    }
 
    @Override
    public void surfaceDestroyed(SurfaceHolder holder) {
        cam.stopPreview();
        cam.release();
 
    }
 
    public void refreshCamera(Camera camera) {
        if (sh.getSurface() == null) {
            return;
        }
 
        try {
            cam.stopPreview();
        } catch (Exception e) {
            // ignore: tried to stop a non-existent preview
        }
 
        setCamera(camera);
        try {
            cam.setPreviewDisplay(sh);
            cam.startPreview();
        } catch (Exception e) {
        }
    }
 
    public void setCamera(Camera camera) {
        cam = camera;
    }
 
}