Example usage for android.hardware Camera open

Introduction

In this page you can find the example usage for android.hardware Camera open.

Prototype

public static Camera open(int cameraId)

Source Link

Document

Creates a new Camera object to access a particular hardware camera.

Usage

From source file:Main.java

/**
 * @return the default camera on the device. Return null if there is no camera on the device.
 *//*from  w  w w.java2  s. c  om*/
public static Camera getDefaultCameraInstance() {
    return Camera.open(HDMIRXID);
}

From source file:Main.java

public static int getCameraFirstId(Context ctx) {

    if (sCameraFirstIndex != -1)
        return sCameraFirstIndex;

    Camera camera = null;/*from   ww w.java 2  s  . c  om*/

    try {
        camera = Camera.open(0);
        sCameraFirstIndex = 0;
        camera.release();
        camera = null;

    } catch (Exception ex) {
        sCameraFirstIndex = 1;
    }

    return sCameraFirstIndex;
}

From source file:Main.java

/**
 *
 * @param position Physical position of the camera i.e Camera.CameraInfo.CAMERA_FACING_FRONT
 *                 or Camera.CameraInfo.CAMERA_FACING_BACK.
 * @return the default camera on the device. Returns null if camera is not available.
 *//*  w  w w  .ja v a2s  . c  o  m*/
@TargetApi(Build.VERSION_CODES.GINGERBREAD)
private static Camera getDefaultCamera(int position) {

    int id = getDefaultCameraId(position);
    if (id != -1) {
        return Camera.open(id);
    }

    return null;
}

From source file:Main.java

/**
 * @param position Physical position of the camera i.e Camera.CameraInfo.CAMERA_FACING_FRONT
 *                 or Camera.CameraInfo.CAMERA_FACING_BACK.
 * @return the default camera on the device. Returns null if camera is not available.
 *//*from w ww  .ja v a2 s .  co  m*/
@TargetApi(Build.VERSION_CODES.GINGERBREAD)
private static Camera getDefaultCamera(int position) {
    // Find the total number of cameras available
    int mNumberOfCameras = Camera.getNumberOfCameras();

    // Find the ID of the back-facing ("default") camera
    Camera.CameraInfo cameraInfo = new Camera.CameraInfo();
    for (int i = 0; i < mNumberOfCameras; ++i) {
        Camera.getCameraInfo(i, cameraInfo);
        if (cameraInfo.facing == position)
            return Camera.open(i);
    }

    return null;
}

From source file:Main.java

/**
 *
 * @param position Physical position of the camera i.e Camera.CameraInfo.CAMERA_FACING_FRONT
 *                 or Camera.CameraInfo.CAMERA_FACING_BACK.
 * @return the default camera on the device. Returns null if camera is not available.
 *///  ww  w.  j  a  va2 s .  c o m
@TargetApi(Build.VERSION_CODES.GINGERBREAD)
private static Camera getDefaultCamera(int position) {
    // Find the total number of cameras available
    int mNumberOfCameras = Camera.getNumberOfCameras();

    // Find the ID of the back-facing ("default") camera
    Camera.CameraInfo cameraInfo = new Camera.CameraInfo();
    for (int i = 0; i < mNumberOfCameras; i++) {
        Camera.getCameraInfo(i, cameraInfo);
        if (cameraInfo.facing == position) {
            return Camera.open(i);

        }
    }

    return null;
}

From source file:Main.java

/**
 * @param position Physical position of the camera i.e Camera.CameraInfo.CAMERA_FACING_FRONT
 *                 or Camera.CameraInfo.CAMERA_FACING_BACK.
 * @return the default camera on the device. Returns null if camera is not available.
 *//*w w w. ja va 2  s.  c om*/
@TargetApi(Build.VERSION_CODES.GINGERBREAD)
public static Camera getDefaultCamera(int position) {
    // Find the total number of cameras available
    int mNumberOfCameras = Camera.getNumberOfCameras();

    // Find the ID of the back-facing ("default") camera
    Camera.CameraInfo cameraInfo = new Camera.CameraInfo();
    for (int i = 0; i < mNumberOfCameras; i++) {
        Camera.getCameraInfo(i, cameraInfo);
        if (cameraInfo.facing == position) {
            try {
                return Camera.open(i);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

    return null;
}

From source file:Main.java

/**
 *
 * @param position Physical position of the camera i.e Camera.CameraInfo.CAMERA_FACING_FRONT
 *                 or Camera.CameraInfo.CAMERA_FACING_BACK.
 * @return the default camera on the device. Returns null if camera is not available.
 *///from  w ww  .j a  v  a  2 s.  c o  m
@TargetApi(Build.VERSION_CODES.GINGERBREAD)
private static Camera getDefaultCamera(int position) {
    // Find the total number of cameras available
    int mNumberOfCameras = Camera.getNumberOfCameras();

    Log.d(TAG, "getDefaultCamera number:" + mNumberOfCameras + " position:" + position);

    // Find the ID of the back-facing ("default") camera
    Camera.CameraInfo cameraInfo = new Camera.CameraInfo();
    for (int i = 0; i < mNumberOfCameras; i++) {
        Camera.getCameraInfo(i, cameraInfo);
        if (cameraInfo.facing == position) {
            return Camera.open(i);

        }
    }

    return null;
}

From source file:org.webrtc.videoengine.VideoCaptureDeviceInfoAndroid.java

private static String getDeviceInfo() {
    try {// w  w  w. jav  a  2s . com
        JSONArray devices = new JSONArray();
        for (int i = 0; i < Camera.getNumberOfCameras(); ++i) {
            CameraInfo info = new CameraInfo();
            Camera.getCameraInfo(i, info);
            String uniqueName = deviceUniqueName(i, info);
            JSONObject cameraDict = new JSONObject();
            devices.put(cameraDict);
            List<Size> supportedSizes;
            List<int[]> supportedFpsRanges;
            Camera camera = null;
            try {
                camera = Camera.open(i);
                Parameters parameters = camera.getParameters();
                supportedSizes = parameters.getSupportedPreviewSizes();
                supportedFpsRanges = parameters.getSupportedPreviewFpsRange();
                Log.d(TAG, uniqueName);
            } catch (RuntimeException e) {
                Log.e(TAG, "Failed to open " + uniqueName + ", skipping", e);
                continue;
            } finally {
                if (camera != null) {
                    camera.release();
                }
            }

            JSONArray sizes = new JSONArray();
            for (Size supportedSize : supportedSizes) {
                JSONObject size = new JSONObject();
                size.put("width", supportedSize.width);
                size.put("height", supportedSize.height);
                sizes.put(size);
            }

            JSONArray mfpsRanges = new JSONArray();
            for (int[] range : supportedFpsRanges) {
                JSONObject mfpsRange = new JSONObject();
                // Android SDK deals in integral "milliframes per second"
                // (i.e. fps*1000, instead of floating-point frames-per-second) so we
                // preserve that through the Java->C++->Java round-trip.
                mfpsRange.put("min_mfps", range[Parameters.PREVIEW_FPS_MIN_INDEX]);
                mfpsRange.put("max_mfps", range[Parameters.PREVIEW_FPS_MAX_INDEX]);
                mfpsRanges.put(mfpsRange);
            }

            cameraDict.put("name", uniqueName);
            cameraDict.put("front_facing", isFrontFacing(info)).put("orientation", info.orientation)
                    .put("sizes", sizes).put("mfpsRanges", mfpsRanges);
        }
        String ret = devices.toString(2);
        Log.d(TAG, ret);
        return ret;
    } catch (JSONException e) {
        throw new RuntimeException(e);
    }
}

From source file:ac.blitz.acme.video.VideoCaptureDeviceInfoAndroid.java

private static String getDeviceInfo() {
    try {//from   w  ww. j  a  v  a2s  .  c  o  m
        JSONArray devices = new JSONArray();
        for (int i = 0; i < Camera.getNumberOfCameras(); ++i) {
            CameraInfo info = new CameraInfo();
            Camera.getCameraInfo(i, info);
            String uniqueName = deviceUniqueName(i, info);
            JSONObject cameraDict = new JSONObject();
            devices.put(cameraDict);
            List<Size> supportedSizes;
            List<int[]> supportedFpsRanges;
            try {
                Camera camera = Camera.open(i);
                Parameters parameters = camera.getParameters();
                supportedSizes = parameters.getSupportedPreviewSizes();
                supportedFpsRanges = parameters.getSupportedPreviewFpsRange();
                camera.release();
                Log.d(TAG, uniqueName);
            } catch (RuntimeException e) {
                Log.e(TAG, "Failed to open " + uniqueName + ", skipping");
                continue;
            }
            JSONArray sizes = new JSONArray();
            for (Size supportedSize : supportedSizes) {
                JSONObject size = new JSONObject();
                size.put("width", supportedSize.width);
                size.put("height", supportedSize.height);
                sizes.put(size);
            }
            // Android SDK deals in integral "milliframes per second"
            // (i.e. fps*1000, instead of floating-point frames-per-second) so we
            // preserve that through the Java->C++->Java round-trip.
            int[] mfps = supportedFpsRanges.get(supportedFpsRanges.size() - 1);
            cameraDict.put("name", uniqueName);
            cameraDict.put("front_facing", isFrontFacing(info)).put("orientation", info.orientation)
                    .put("sizes", sizes).put("min_mfps", mfps[Parameters.PREVIEW_FPS_MIN_INDEX])
                    .put("max_mfps", mfps[Parameters.PREVIEW_FPS_MAX_INDEX]);
        }
        String ret = devices.toString(2);
        return ret;
    } catch (JSONException e) {
        throw new RuntimeException(e);
    }
}

From source file:com.tester.photodetectortest.MainActivity.java

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);//from   w w w .  j  ava 2s.com

    mCamera = Camera.open(1);
    mainContainer = (RelativeLayout) findViewById(R.id.main_container);

    mPreview = new Preview(this, mCamera);
    mainContainer.addView(mPreview, 0);

    pd = new PhotoDetector(this);
    pd.setLicensePath("sdk.license");
    pd.setImageListener(this);
    pd.setDetectAllEmotions(true);
    pd.setDetectAllExpressions(true);

    FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
    fab.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            mCamera.takePicture(null, null, mPictureCallback);
        }
    });
}