Reputation: 311
I'm creating android camera app. This is an custom camera using camera
API.
Whenever I take picture from camera it always save in landscap mode.
I'm using this method to set the camera orientation.
public static void setCameraDisplayOrientation(Activity activity,
int cameraId, android.hardware.Camera camera) {
android.hardware.Camera.CameraInfo info =
new android.hardware.Camera.CameraInfo();
android.hardware.Camera.getCameraInfo(cameraId, info);
int rotation = activity.getWindowManager().getDefaultDisplay()
.getRotation();
int degrees = 0;
switch (rotation) {
case Surface.ROTATION_0: degrees = 0; break;
case Surface.ROTATION_90: degrees = 90; break;
case Surface.ROTATION_180: degrees = 180; break;
case Surface.ROTATION_270: degrees = 270; break;
}
int result;
if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
result = (info.orientation + degrees) % 360;
result = (360 - result) % 360; // compensate the mirror
} else { // back-facing
result = (info.orientation - degrees + 360) % 360;
}
camera.setDisplayOrientation(result);
}
Here is code which is responsible to store image.
PictureCallback jpegCallback = new PictureCallback() {
public void onPictureTaken(byte[] data, Camera camera) {
File pictureFile = getOutputMediaFile(MEDIA_TYPE_IMAGE);
if (pictureFile == null){
Log.d(TAG, "Error creating media file, check storage permissions: ");
return;
}
try {
FileOutputStream fos = new FileOutputStream(pictureFile);
fos.write(data);
fos.close();
} catch (FileNotFoundException e) {
Log.d(TAG, "File not found: " + e.getMessage());
} catch (IOException e) {
Log.d(TAG, "Error accessing file: " + e.getMessage());
}
}
};
This code save the image successfully but always in landscape mode. What I'm missing I'm new in android. I want to save image as like it is shown in preview.
Update 2 (According To Answer)
PictureCallback jpegCallback = new PictureCallback() {
public void onPictureTaken(byte[] data, Camera camera) {
Camera.CameraInfo info = new Camera.CameraInfo();
int rotationAngle = getCorrectCameraOrientation (MainActivity.this, info);
Toast.makeText(MainActivity.this, "Angle "+ rotationAngle, Toast.LENGTH_SHORT).show();
File pictureFile = getOutputMediaFile(MEDIA_TYPE_IMAGE);
try {
writeFile (data, pictureFile);
} catch (IOException e) {
e.printStackTrace();
}
processImage (pictureFile, rotationAngle, 1);
}
};
I'm using code in this way but this is not working still same problem image is always in landscape mode.
Upvotes: 2
Views: 182
Reputation: 10126
Try
1. First of all, add methods (writeFile, processImage and getCorrectCameraOrientation) defined below (After step 3)
2. Calculate camera orientation after capturing photo and update onPictureTaken**
@Override
public void onPictureTaken (final byte[] data, final Camera camera) {
int rotationAngle = getCorrectCameraOrientation (this, info);
3. Create file and update photo angle using rotationAngle
File file = new File (folder, fileName);
try {
file.createNewFile ();
}
catch (IOException e) {
e.printStackTrace ();
}
writeFile (data, file);
processImage (file, rotationAngle, compressRatio);
writeFile
public static void writeFile (byte[] data, File file) throws IOException {
BufferedOutputStream bos = null;
try {
FileOutputStream fos = new FileOutputStream (file);
bos = new BufferedOutputStream (fos);
bos.write (data);
}
finally {
if (bos != null) {
try {
bos.flush ();
bos.close ();
}
catch (Exception e) {
}
}
}
}
processImage
public static void processImage (File file, int rotationAngle, int compressionRatio) {
BufferedOutputStream bos = null;
try {
Bitmap bmp = BitmapFactory.decodeFile (file.getPath ());
Matrix matrix = new Matrix ();
matrix.postRotate (rotationAngle);
bmp = Bitmap.createBitmap (bmp, 0, 0, bmp.getWidth (), bmp.getHeight (), matrix, true);
FileOutputStream fos = new FileOutputStream (file);
bmp.compress (Bitmap.CompressFormat.PNG, compressionRatio, fos);
}
catch (IOException e) {
e.printStackTrace ();
}
catch (OutOfMemoryError t) {
t.printStackTrace ();
}
catch (Throwable t) {
t.printStackTrace ();
}
finally {
if (bos != null) {
try {
bos.flush ();
bos.close ();
}
catch (Exception e) {
}
}
}
}
getCorrectCameraOrientation
public static int getCorrectCameraOrientation (Activity activity, Camera.CameraInfo info) {
int rotation = activity.getWindowManager ().getDefaultDisplay ().getRotation ();
int degrees = 0;
if (hasValidRotation (rotation)) {
degrees = rotation * 90;
}
int result;
if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
result = (info.orientation + degrees) % 360;
result = (360 - result) % 360;
}
else {
result = (info.orientation - degrees + 360) % 360;
}
return result;
}
Upvotes: 1