Example usage for android.graphics YuvImage getWidth

Introduction

In this page you can find the example usage for android.graphics YuvImage getWidth.

Prototype

public int getWidth() 

Source Link

Usage

From source file:com.example.android.camera.CameraActivity.java

@Override
protected void onResume() {
    super.onResume();

    Camera.PreviewCallback previewCallback = new Camera.PreviewCallback() {

        @Override//from w w  w.  j  av  a2 s.c om
        public void onPreviewFrame(byte[] data, Camera camera) {

            if (notRequesting && mPreview.faces.size() >= 1 && imageFormat == ImageFormat.NV21) {

                // Block Request.
                notRequesting = false;

                try {
                    Camera.Parameters parameters = camera.getParameters();
                    Size size = parameters.getPreviewSize();

                    textServerView.setText("Preparing Image to send");
                    YuvImage previewImg = new YuvImage(data, parameters.getPreviewFormat(), size.width,
                            size.height, null);
                    pWidth = previewImg.getWidth();
                    pHeight = previewImg.getHeight();

                    Log.d("face View", "Width: " + pWidth + " x Height: " + pHeight);
                    prepareMatrix(matrix, 0, pWidth, pHeight);
                    List<Rect> foundFaces = getFaces();

                    for (Rect cRect : foundFaces) {
                        // Cropping
                        ByteArrayOutputStream bao = new ByteArrayOutputStream();
                        previewImg.compressToJpeg(cRect, 100, bao);
                        byte[] mydata = bao.toByteArray();

                        // Resizing
                        ByteArrayOutputStream sbao = new ByteArrayOutputStream();
                        Bitmap bm = BitmapFactory.decodeByteArray(mydata, 0, mydata.length);
                        Bitmap sbm = Bitmap.createScaledBitmap(bm, 100, 100, true);
                        bm.recycle();
                        sbm.compress(Bitmap.CompressFormat.JPEG, 100, sbao);
                        byte[] mysdata = sbao.toByteArray();

                        RequestParams params = new RequestParams();
                        params.put("upload", new ByteArrayInputStream(mysdata), "tmp.jpg");

                        textServerView.setText("Sending Image to the Server");

                        FaceMatchClient.post(":8080/match", params, new JsonHttpResponseHandler() {
                            @Override
                            public void onSuccess(JSONArray result) {
                                Log.d("face onSuccess", result.toString());

                                try {
                                    JSONObject myJson = (JSONObject) result.get(0);
                                    float dist = (float) Double.parseDouble(myJson.getString("dist"));
                                    Log.d("distance", "" + dist);
                                    int level = (int) ((1 - dist) * 100);
                                    if (level > previousMatchLevel) {
                                        textView.setText("Match " + level + "% with " + myJson.getString("name")
                                                + " <" + myJson.getString("email") + "> ");

                                        loadImage(myJson.getString("classes"), myJson.getString("username"));
                                    }

                                    previousMatchLevel = level;
                                    trialCounter++;

                                    if (trialCounter < 100 && level < 74) {
                                        textServerView.setText("Retrying...");
                                        notRequesting = true;
                                    } else if (trialCounter == 100) {
                                        textServerView.setText("Fail...");
                                    } else {
                                        textServerView.setText("Found Good Match? If not try again!");
                                        fdButtonClicked = false;
                                        trialCounter = 0;
                                        previousMatchLevel = 0;
                                        mCamera.stopFaceDetection();
                                        button.setText("StartFaceDetection");
                                    }

                                } catch (JSONException e) {
                                    // TODO Auto-generated catch block
                                    e.printStackTrace();
                                }

                                //                                        informationView.showInfo(myJson);
                            }

                        });
                    }

                    textServerView.setText("POST Sent");
                    textServerView.setText("Awaiting for response");

                } catch (Exception e) {
                    e.printStackTrace();
                    textServerView.setText("Error AsyncPOST");
                }
            }
        }
    };

    // Open the default i.e. the first rear facing camera.
    mCamera = Camera.open();
    mCamera.setPreviewCallback(previewCallback);

    // To use front camera
    //        mCamera = Camera.open(CameraActivity.getFrontCameraId());
    mPreview.setCamera(mCamera);
    parameters = mCamera.getParameters();
    imageFormat = parameters.getPreviewFormat();
    PreviewSize = parameters.getPreviewSize();
}

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