Example usage for android.hardware.camera2 CaptureRequest CONTROL_AE

Introduction

In this page you can find the example usage for android.hardware.camera2 CaptureRequest CONTROL_AE_MODE.

Prototype

Key CONTROL_AE_MODE

To view the source code for android.hardware.camera2 CaptureRequest CONTROL_AE_MODE.

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Document

The desired mode for the camera device's auto-exposure routine.

This control is only effective if CaptureRequest#CONTROL_MODE android.control.mode is AUTO.

When set to any of the ON modes, the camera device's auto-exposure routine is enabled, overriding the application's selected exposure time, sensor sensitivity, and frame duration ( CaptureRequest#SENSOR_EXPOSURE_TIME android.sensor.exposureTime , CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity , and CaptureRequest#SENSOR_FRAME_DURATION android.sensor.frameDuration ).

Usage

From source file:com.iwuvhugs.seekgame.PhotoFragment.java

private void setAutoFlash(CaptureRequest.Builder requestBuilder) {
    if (mFlashSupported) {
        requestBuilder.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON);
    }/*w  w w  .j  a v a2s. c o m*/
}

From source file:com.mikhaellopez.dualshot.controller.fragment.Camera2BasicFragment.java

/**
 * Capture a still picture. This method should be called when we get a response in
 * {@link #mCaptureCallback} from both {@link #lockFocus()}.
 *//* ww  w  .ja  va 2 s. c  o  m*/
private void captureStillPicture() {
    try {
        final Activity activity = getActivity();
        if (null == activity || null == mCameraDevice) {
            return;
        }
        // This is the CaptureRequest.Builder that we use to take a picture.
        final CaptureRequest.Builder captureBuilder = mCameraDevice
                .createCaptureRequest(CameraDevice.TEMPLATE_STILL_CAPTURE);
        captureBuilder.addTarget(mImageReader.getSurface());

        // Use the same AE and AF modes as the preview.
        captureBuilder.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE);
        captureBuilder.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH);

        // Orientation
        int rotation = activity.getWindowManager().getDefaultDisplay().getRotation();
        captureBuilder.set(CaptureRequest.JPEG_ORIENTATION, ORIENTATIONS.get(rotation));

        CameraCaptureSession.CaptureCallback CaptureCallback = new CameraCaptureSession.CaptureCallback() {

            @Override
            public void onCaptureCompleted(@NonNull CameraCaptureSession session,
                    @NonNull CaptureRequest request, @NonNull TotalCaptureResult result) {

                Log.d(TAG, mFile.toString());
                unlockFocus();
            }
        };

        mCaptureSession.stopRepeating();
        mCaptureSession.capture(captureBuilder.build(), CaptureCallback, null);
    } catch (CameraAccessException e) {
        e.printStackTrace();
    }
}

From source file:org.odk.collect.android.fragments.Camera2Fragment.java

private void setAutoFlash(CaptureRequest.Builder requestBuilder) {
    if (flashSupported) {
        requestBuilder.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH);
    }//www . j  ava 2s  . c om
}

From source file:com.android.camera.one.v2.OneCameraZslImpl.java

/**
 * Request a stream of images./*from w ww. j a  va 2 s  .c om*/
 *
 * @return true if successful, false if there was an error submitting the
 *         capture request.
 */
private boolean sendRepeatingCaptureRequest() {
    Log.v(TAG, "sendRepeatingCaptureRequest()");
    try {
        CaptureRequest.Builder builder;
        if (ZSL_ENABLED) {
            builder = mDevice.createCaptureRequest(CameraDevice.TEMPLATE_ZERO_SHUTTER_LAG);
        } else {
            builder = mDevice.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);
        }

        builder.addTarget(mPreviewSurface);

        if (ZSL_ENABLED) {
            builder.addTarget(mCaptureImageReader.getSurface());
        }

        builder.set(CaptureRequest.CONTROL_MODE, CaptureRequest.CONTROL_MODE_AUTO);

        builder.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE);
        builder.set(CaptureRequest.CONTROL_AF_TRIGGER, CaptureRequest.CONTROL_AF_TRIGGER_IDLE);

        builder.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON);
        builder.set(CaptureRequest.FLASH_MODE, CaptureRequest.FLASH_MODE_OFF);

        addRegionsToCaptureRequestBuilder(builder);

        mCaptureSession.setRepeatingRequest(builder.build(), mCaptureManager, mCameraHandler);
        return true;
    } catch (CameraAccessException e) {
        if (ZSL_ENABLED) {
            Log.v(TAG, "Could not execute zero-shutter-lag repeating request.", e);
        } else {
            Log.v(TAG, "Could not execute preview request.", e);
        }
        return false;
    }
}

From source file:info.staticfree.mqtt_camera.fragment.CameraFragment.java

private void setAutoFlash(CaptureRequest.Builder requestBuilder) {
    if (flashSupported) {
        requestBuilder.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON);
    }/*from w w w  . jav a2s.c  o  m*/
}

From source file:camera2basic.Camera2BasicFragment.java

private void setAutoFlash(CaptureRequest.Builder requestBuilder) {
    if (mFlashSupported) {
        requestBuilder.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH);
    }/*w ww  .  java2  s. c o m*/
}

From source file:fbla.hhs.eclat.Camera.Camera2BasicFragment.java

/**
 * Capture a still picture. This method should be called when we get a response in
 * {@link #mCaptureCallback} from both {@link #lockFocus()}.
 *//*ww  w.ja  va  2  s . co  m*/
private void captureStillPicture() {
    try {
        final Activity activity = getActivity();
        if (null == activity || null == mCameraDevice) {
            return;
        }
        // This is the CaptureRequest.Builder that we use to take a picture.
        final CaptureRequest.Builder captureBuilder = mCameraDevice
                .createCaptureRequest(CameraDevice.TEMPLATE_STILL_CAPTURE);
        captureBuilder.addTarget(mImageReader.getSurface());

        // Use the same AE and AF modes as the preview.
        captureBuilder.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE);
        captureBuilder.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH);

        // Orientation
        int rotation = activity.getWindowManager().getDefaultDisplay().getRotation();
        captureBuilder.set(CaptureRequest.JPEG_ORIENTATION, ORIENTATIONS.get(rotation));

        CameraCaptureSession.CaptureCallback CaptureCallback = new CameraCaptureSession.CaptureCallback() {

            //Fragment frag;
            @Override
            public void onCaptureCompleted(@NonNull CameraCaptureSession session,
                    @NonNull CaptureRequest request, @NonNull TotalCaptureResult result) {
                //showToast("Saved: " + mFile);
                Log.d(TAG, mFile.toString());
                //unlockFocus(session);
                switchFrag();
                /*ImagePreview fragment = new ImagePreview();
                fragment.setImage(mFile, frag);
                FragmentManager fragmentManager = getActivity().getFragmentManager();
                FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
                fragmentTransaction.replace(R.id.container, fragment);
                fragmentTransaction.addToBackStack(null);
                fragmentTransaction.commit();*/
                //onPause();
                /*ImageObtainedReaction imageReactor=new ImageObtainedReaction(mFile);
                imageReactor.run();*/
            }
        };
        mCaptureSession.stopRepeating();
        mCaptureSession.capture(captureBuilder.build(), CaptureCallback, null);
    } catch (CameraAccessException e) {
        e.printStackTrace();
    }
}

From source file:com.oddsix.nutripro.fragments.Camera2Fragment.java

public void setFlash(int flashMode) {
    switch (flashMode) {
    case FLASH_AUTO:
        mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AE_MODE,
                CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH);
        break;//from w w w. ja v a  2  s .com
    case FLASH_OFF:
        mPreviewRequestBuilder.set(CaptureRequest.FLASH_MODE, CameraMetadata.FLASH_MODE_OFF);
        break;
    case FLASH_ON:
        mPreviewRequestBuilder.set(CaptureRequest.FLASH_MODE, CaptureRequest.FLASH_MODE_SINGLE);
        break;
    }
    try {
        // Reset the auto-focus trigger
        mCaptureSession.capture(mPreviewRequestBuilder.build(), mCaptureCallback, mBackgroundHandler);
    } catch (CameraAccessException e) {
        e.printStackTrace();
    }
}

From source file:com.android.camera.one.v2.OneCameraZslImpl.java

private boolean sendRepeatingBurstCaptureRequest() {
    Log.v(TAG, "sendRepeatingBurstCaptureRequest()");
    try {//w w w .  ja  v a  2 s . c o m
        CaptureRequest.Builder builder;
        builder = mDevice.createCaptureRequest(CameraDevice.TEMPLATE_VIDEO_SNAPSHOT);
        builder.addTarget(mPreviewSurface);

        if (ZSL_ENABLED) {
            builder.addTarget(mCaptureImageReader.getSurface());
        }

        builder.set(CaptureRequest.CONTROL_MODE, CaptureRequest.CONTROL_MODE_AUTO);
        builder.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_VIDEO);
        builder.set(CaptureRequest.CONTROL_AF_TRIGGER, CaptureRequest.CONTROL_AF_TRIGGER_IDLE);

        builder.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON);
        builder.set(CaptureRequest.FLASH_MODE, CaptureRequest.FLASH_MODE_OFF);

        addRegionsToCaptureRequestBuilder(builder);

        mCaptureSession.setRepeatingRequest(builder.build(), mCaptureManager, mCameraHandler);
        return true;
    } catch (CameraAccessException e) {
        Log.v(TAG, "Could not send repeating burst capture request.", e);
        return false;
    }
}

From source file:com.android.camera2.its.ItsService.java

private void do3A(JSONObject params) throws ItsException {
    try {/*w  w  w . j  av  a2 s  .  co m*/
        // Start a 3A action, and wait for it to converge.
        // Get the converged values for each "A", and package into JSON result for caller.

        // 3A happens on full-res frames.
        Size sizes[] = ItsUtils.getYuvOutputSizes(mCameraCharacteristics);
        int widths[] = new int[1];
        int heights[] = new int[1];
        int formats[] = new int[1];
        widths[0] = sizes[0].getWidth();
        heights[0] = sizes[0].getHeight();
        formats[0] = ImageFormat.YUV_420_888;
        int width = widths[0];
        int height = heights[0];

        prepareCaptureReader(widths, heights, formats, 1);
        List<Surface> outputSurfaces = new ArrayList<Surface>(1);
        outputSurfaces.add(mCaptureReaders[0].getSurface());
        BlockingSessionCallback sessionListener = new BlockingSessionCallback();
        mCamera.createCaptureSession(outputSurfaces, sessionListener, mCameraHandler);
        mSession = sessionListener.waitAndGetSession(TIMEOUT_IDLE_MS);

        // Add a listener that just recycles buffers; they aren't saved anywhere.
        ImageReader.OnImageAvailableListener readerListener = createAvailableListenerDropper(mCaptureCallback);
        mCaptureReaders[0].setOnImageAvailableListener(readerListener, mSaveHandlers[0]);

        // Get the user-specified regions for AE, AWB, AF.
        // Note that the user specifies normalized [x,y,w,h], which is converted below
        // to an [x0,y0,x1,y1] region in sensor coords. The capture request region
        // also has a fifth "weight" element: [x0,y0,x1,y1,w].
        MeteringRectangle[] regionAE = new MeteringRectangle[] {
                new MeteringRectangle(0, 0, width, height, 1) };
        MeteringRectangle[] regionAF = new MeteringRectangle[] {
                new MeteringRectangle(0, 0, width, height, 1) };
        MeteringRectangle[] regionAWB = new MeteringRectangle[] {
                new MeteringRectangle(0, 0, width, height, 1) };
        if (params.has(REGION_KEY)) {
            JSONObject regions = params.getJSONObject(REGION_KEY);
            if (regions.has(REGION_AE_KEY)) {
                regionAE = ItsUtils.getJsonWeightedRectsFromArray(regions.getJSONArray(REGION_AE_KEY), true,
                        width, height);
            }
            if (regions.has(REGION_AF_KEY)) {
                regionAF = ItsUtils.getJsonWeightedRectsFromArray(regions.getJSONArray(REGION_AF_KEY), true,
                        width, height);
            }
            if (regions.has(REGION_AWB_KEY)) {
                regionAWB = ItsUtils.getJsonWeightedRectsFromArray(regions.getJSONArray(REGION_AWB_KEY), true,
                        width, height);
            }
        }

        // If AE or AWB lock is specified, then the 3A will converge first and then lock these
        // values, waiting until the HAL has reported that the lock was successful.
        mNeedsLockedAE = params.optBoolean(LOCK_AE_KEY, false);
        mNeedsLockedAWB = params.optBoolean(LOCK_AWB_KEY, false);

        // By default, AE and AF both get triggered, but the user can optionally override this.
        // Also, AF won't get triggered if the lens is fixed-focus.
        boolean doAE = true;
        boolean doAF = true;
        if (params.has(TRIGGER_KEY)) {
            JSONObject triggers = params.getJSONObject(TRIGGER_KEY);
            if (triggers.has(TRIGGER_AE_KEY)) {
                doAE = triggers.getBoolean(TRIGGER_AE_KEY);
            }
            if (triggers.has(TRIGGER_AF_KEY)) {
                doAF = triggers.getBoolean(TRIGGER_AF_KEY);
            }
        }
        if (doAF && mCameraCharacteristics.get(CameraCharacteristics.LENS_INFO_MINIMUM_FOCUS_DISTANCE) == 0) {
            // Send a dummy result back for the code that is waiting for this message to see
            // that AF has converged.
            Logt.i(TAG, "Ignoring request for AF on fixed-focus camera");
            mSocketRunnableObj.sendResponse("afResult", "0.0");
            doAF = false;
        }

        mInterlock3A.open();
        mIssuedRequest3A = false;
        mConvergedAE = false;
        mConvergedAWB = false;
        mConvergedAF = false;
        mLockedAE = false;
        mLockedAWB = false;
        long tstart = System.currentTimeMillis();
        boolean triggeredAE = false;
        boolean triggeredAF = false;

        Logt.i(TAG, String.format("Initiating 3A: AE:%d, AF:%d, AWB:1, AELOCK:%d, AWBLOCK:%d", doAE ? 1 : 0,
                doAF ? 1 : 0, mNeedsLockedAE ? 1 : 0, mNeedsLockedAWB ? 1 : 0));

        // Keep issuing capture requests until 3A has converged.
        while (true) {

            // Block until can take the next 3A frame. Only want one outstanding frame
            // at a time, to simplify the logic here.
            if (!mInterlock3A.block(TIMEOUT_3A * 1000)
                    || System.currentTimeMillis() - tstart > TIMEOUT_3A * 1000) {
                throw new ItsException("3A failed to converge (timeout)");
            }
            mInterlock3A.close();

            // If not converged yet, issue another capture request.
            if ((doAE && (!triggeredAE || !mConvergedAE)) || !mConvergedAWB
                    || (doAF && (!triggeredAF || !mConvergedAF)) || (doAE && mNeedsLockedAE && !mLockedAE)
                    || (mNeedsLockedAWB && !mLockedAWB)) {

                // Baseline capture request for 3A.
                CaptureRequest.Builder req = mCamera.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);
                req.set(CaptureRequest.FLASH_MODE, CaptureRequest.FLASH_MODE_OFF);
                req.set(CaptureRequest.CONTROL_MODE, CaptureRequest.CONTROL_MODE_AUTO);
                req.set(CaptureRequest.CONTROL_CAPTURE_INTENT, CaptureRequest.CONTROL_CAPTURE_INTENT_PREVIEW);
                req.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON);
                req.set(CaptureRequest.CONTROL_AE_EXPOSURE_COMPENSATION, 0);
                req.set(CaptureRequest.CONTROL_AE_LOCK, false);
                req.set(CaptureRequest.CONTROL_AE_REGIONS, regionAE);
                req.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_AUTO);
                req.set(CaptureRequest.CONTROL_AF_REGIONS, regionAF);
                req.set(CaptureRequest.CONTROL_AWB_MODE, CaptureRequest.CONTROL_AWB_MODE_AUTO);
                req.set(CaptureRequest.CONTROL_AWB_LOCK, false);
                req.set(CaptureRequest.CONTROL_AWB_REGIONS, regionAWB);

                if (mConvergedAE && mNeedsLockedAE) {
                    req.set(CaptureRequest.CONTROL_AE_LOCK, true);
                }
                if (mConvergedAWB && mNeedsLockedAWB) {
                    req.set(CaptureRequest.CONTROL_AWB_LOCK, true);
                }

                // Trigger AE first.
                if (doAE && !triggeredAE) {
                    Logt.i(TAG, "Triggering AE");
                    req.set(CaptureRequest.CONTROL_AE_PRECAPTURE_TRIGGER,
                            CaptureRequest.CONTROL_AE_PRECAPTURE_TRIGGER_START);
                    triggeredAE = true;
                }

                // After AE has converged, trigger AF.
                if (doAF && !triggeredAF && (!doAE || (triggeredAE && mConvergedAE))) {
                    Logt.i(TAG, "Triggering AF");
                    req.set(CaptureRequest.CONTROL_AF_TRIGGER, CaptureRequest.CONTROL_AF_TRIGGER_START);
                    triggeredAF = true;
                }

                req.addTarget(mCaptureReaders[0].getSurface());

                mIssuedRequest3A = true;
                mSession.capture(req.build(), mCaptureResultListener, mResultHandler);
            } else {
                mSocketRunnableObj.sendResponse("3aConverged", "");
                Logt.i(TAG, "3A converged");
                break;
            }
        }
    } catch (android.hardware.camera2.CameraAccessException e) {
        throw new ItsException("Access error: ", e);
    } catch (org.json.JSONException e) {
        throw new ItsException("JSON error: ", e);
    } finally {
        mSocketRunnableObj.sendResponse("3aDone", "");
    }
}

Example usage for android.hardware.camera2 CaptureRequest CONTROL_AE_MODE

Introduction

Prototype

Document

Usage