Examples with CameraAccessException android.hardware.camera2.CameraAccessException used on opensource projects

Example 81 with CameraAccessException

use of android.hardware.camera2.CameraAccessException in project android_frameworks_base by DirtyUnicorns.

the class CameraManager method getOrCreateDeviceIdListLocked.

/**
     * Return or create the list of currently connected camera devices.
     *
     * <p>In case of errors connecting to the camera service, will return an empty list.</p>
     */
private ArrayList<String> getOrCreateDeviceIdListLocked() throws CameraAccessException {
    if (mDeviceIdList == null) {
        int numCameras = 0;
        ICameraService cameraService = CameraManagerGlobal.get().getCameraService();
        ArrayList<String> deviceIdList = new ArrayList<>();
        // If no camera service, then no devices
        if (cameraService == null) {
            return deviceIdList;
        }
        try {
            numCameras = cameraService.getNumberOfCameras(CAMERA_TYPE_ALL);
        } catch (ServiceSpecificException e) {
            throwAsPublicException(e);
        } catch (RemoteException e) {
            // camera service just died - if no camera service, then no devices
            return deviceIdList;
        }
        for (int i = 0; i < numCameras; ++i) {
            // Non-removable cameras use integers starting at 0 for their
            // identifiers
            boolean isDeviceSupported = false;
            try {
                CameraMetadataNative info = cameraService.getCameraCharacteristics(i);
                if (!info.isEmpty()) {
                    isDeviceSupported = true;
                } else {
                    throw new AssertionError("Expected to get non-empty characteristics");
                }
            } catch (ServiceSpecificException e) {
                // propagate exception onward
                if (e.errorCode != ICameraService.ERROR_DISCONNECTED || e.errorCode != ICameraService.ERROR_ILLEGAL_ARGUMENT) {
                    throwAsPublicException(e);
                }
            } catch (RemoteException e) {
                // Camera service died - no devices to list
                deviceIdList.clear();
                return deviceIdList;
            }
            if (isDeviceSupported) {
                deviceIdList.add(String.valueOf(i));
            } else {
                Log.w(TAG, "Error querying camera device " + i + " for listing.");
            }
        }
        mDeviceIdList = deviceIdList;
    }
    return mDeviceIdList;
}

Example 82 with CameraAccessException

use of android.hardware.camera2.CameraAccessException in project android_frameworks_base by DirtyUnicorns.

the class CameraDeviceImpl method createReprocessableCaptureSession.

@Override
public void createReprocessableCaptureSession(InputConfiguration inputConfig, List<Surface> outputs, CameraCaptureSession.StateCallback callback, Handler handler) throws CameraAccessException {
    if (DEBUG) {
        Log.d(TAG, "createReprocessableCaptureSession");
    }
    if (inputConfig == null) {
        throw new IllegalArgumentException("inputConfig cannot be null when creating a " + "reprocessable capture session");
    }
    List<OutputConfiguration> outConfigurations = new ArrayList<>(outputs.size());
    for (Surface surface : outputs) {
        outConfigurations.add(new OutputConfiguration(surface));
    }
    createCaptureSessionInternal(inputConfig, outConfigurations, callback, handler, /*isConstrainedHighSpeed*/
    false);
}

Example 83 with CameraAccessException

use of android.hardware.camera2.CameraAccessException in project android_frameworks_base by DirtyUnicorns.

the class CameraDeviceImpl method configureStreamsChecked.

/**
     * Attempt to configure the input and outputs; the device goes to idle and then configures the
     * new input and outputs if possible.
     *
     * <p>The configuration may gracefully fail, if input configuration is not supported,
     * if there are too many outputs, if the formats are not supported, or if the sizes for that
     * format is not supported. In this case this function will return {@code false} and the
     * unconfigured callback will be fired.</p>
     *
     * <p>If the configuration succeeds (with 1 or more outputs with or without an input),
     * then the idle callback is fired. Unconfiguring the device always fires the idle callback.</p>
     *
     * @param inputConfig input configuration or {@code null} for no input
     * @param outputs a list of one or more surfaces, or {@code null} to unconfigure
     * @param isConstrainedHighSpeed If the streams configuration is for constrained high speed output.
     * @return whether or not the configuration was successful
     *
     * @throws CameraAccessException if there were any unexpected problems during configuration
     */
public boolean configureStreamsChecked(InputConfiguration inputConfig, List<OutputConfiguration> outputs, boolean isConstrainedHighSpeed) throws CameraAccessException {
    // Treat a null input the same an empty list
    if (outputs == null) {
        outputs = new ArrayList<OutputConfiguration>();
    }
    if (outputs.size() == 0 && inputConfig != null) {
        throw new IllegalArgumentException("cannot configure an input stream without " + "any output streams");
    }
    checkInputConfiguration(inputConfig);
    boolean success = false;
    synchronized (mInterfaceLock) {
        checkIfCameraClosedOrInError();
        // Streams to create
        HashSet<OutputConfiguration> addSet = new HashSet<OutputConfiguration>(outputs);
        // Streams to delete
        List<Integer> deleteList = new ArrayList<Integer>();
        // Determine which streams need to be created, which to be deleted
        for (int i = 0; i < mConfiguredOutputs.size(); ++i) {
            int streamId = mConfiguredOutputs.keyAt(i);
            OutputConfiguration outConfig = mConfiguredOutputs.valueAt(i);
            if (!outputs.contains(outConfig) || outConfig.isDeferredConfiguration()) {
                // Always delete the deferred output configuration when the session
                // is created, as the deferred output configuration doesn't have unique surface
                // related identifies.
                deleteList.add(streamId);
            } else {
                // Don't create a stream previously created
                addSet.remove(outConfig);
            }
        }
        mDeviceHandler.post(mCallOnBusy);
        stopRepeating();
        try {
            waitUntilIdle();
            mRemoteDevice.beginConfigure();
            // reconfigure the input stream if the input configuration is different.
            InputConfiguration currentInputConfig = mConfiguredInput.getValue();
            if (inputConfig != currentInputConfig && (inputConfig == null || !inputConfig.equals(currentInputConfig))) {
                if (currentInputConfig != null) {
                    mRemoteDevice.deleteStream(mConfiguredInput.getKey());
                    mConfiguredInput = new SimpleEntry<Integer, InputConfiguration>(REQUEST_ID_NONE, null);
                }
                if (inputConfig != null) {
                    int streamId = mRemoteDevice.createInputStream(inputConfig.getWidth(), inputConfig.getHeight(), inputConfig.getFormat());
                    mConfiguredInput = new SimpleEntry<Integer, InputConfiguration>(streamId, inputConfig);
                }
            }
            // Delete all streams first (to free up HW resources)
            for (Integer streamId : deleteList) {
                mRemoteDevice.deleteStream(streamId);
                mConfiguredOutputs.delete(streamId);
            }
            // Add all new streams
            for (OutputConfiguration outConfig : outputs) {
                if (addSet.contains(outConfig)) {
                    int streamId = mRemoteDevice.createStream(outConfig);
                    mConfiguredOutputs.put(streamId, outConfig);
                }
            }
            mRemoteDevice.endConfigure(isConstrainedHighSpeed);
            success = true;
        } catch (IllegalArgumentException e) {
            // OK. camera service can reject stream config if it's not supported by HAL
            // This is only the result of a programmer misusing the camera2 api.
            Log.w(TAG, "Stream configuration failed due to: " + e.getMessage());
            return false;
        } catch (CameraAccessException e) {
            if (e.getReason() == CameraAccessException.CAMERA_IN_USE) {
                throw new IllegalStateException("The camera is currently busy." + " You must wait until the previous operation completes.", e);
            }
            throw e;
        } finally {
            if (success && outputs.size() > 0) {
                mDeviceHandler.post(mCallOnIdle);
            } else {
                // Always return to the 'unconfigured' state if we didn't hit a fatal error
                mDeviceHandler.post(mCallOnUnconfigured);
            }
        }
    }
    return success;
}

Example 84 with CameraAccessException

use of android.hardware.camera2.CameraAccessException in project android_frameworks_base by DirtyUnicorns.

the class CameraDeviceImpl method createReprocessableCaptureSessionByConfigurations.

@Override
public void createReprocessableCaptureSessionByConfigurations(InputConfiguration inputConfig, List<OutputConfiguration> outputs, android.hardware.camera2.CameraCaptureSession.StateCallback callback, Handler handler) throws CameraAccessException {
    if (DEBUG) {
        Log.d(TAG, "createReprocessableCaptureSessionWithConfigurations");
    }
    if (inputConfig == null) {
        throw new IllegalArgumentException("inputConfig cannot be null when creating a " + "reprocessable capture session");
    }
    if (outputs == null) {
        throw new IllegalArgumentException("Output configurations cannot be null when " + "creating a reprocessable capture session");
    }
    // OutputConfiguration objects aren't immutable, make a copy before using.
    List<OutputConfiguration> currentOutputs = new ArrayList<OutputConfiguration>();
    for (OutputConfiguration output : outputs) {
        currentOutputs.add(new OutputConfiguration(output));
    }
    createCaptureSessionInternal(inputConfig, currentOutputs, callback, handler, /*isConstrainedHighSpeed*/
    false);
}

Example 85 with CameraAccessException

use of android.hardware.camera2.CameraAccessException in project android_frameworks_base by DirtyUnicorns.

the class CameraDeviceImpl method createCaptureSessionInternal.

private void createCaptureSessionInternal(InputConfiguration inputConfig, List<OutputConfiguration> outputConfigurations, CameraCaptureSession.StateCallback callback, Handler handler, boolean isConstrainedHighSpeed) throws CameraAccessException {
    synchronized (mInterfaceLock) {
        if (DEBUG) {
            Log.d(TAG, "createCaptureSessionInternal");
        }
        checkIfCameraClosedOrInError();
        if (isConstrainedHighSpeed && inputConfig != null) {
            throw new IllegalArgumentException("Constrained high speed session doesn't support" + " input configuration yet.");
        }
        // After this call completes, the session is not allowed to call into CameraDeviceImpl
        if (mCurrentSession != null) {
            mCurrentSession.replaceSessionClose();
        }
        // TODO: dont block for this
        boolean configureSuccess = true;
        CameraAccessException pendingException = null;
        Surface input = null;
        try {
            // configure streams and then block until IDLE
            configureSuccess = configureStreamsChecked(inputConfig, outputConfigurations, isConstrainedHighSpeed);
            if (configureSuccess == true && inputConfig != null) {
                input = mRemoteDevice.getInputSurface();
            }
        } catch (CameraAccessException e) {
            configureSuccess = false;
            pendingException = e;
            input = null;
            if (DEBUG) {
                Log.v(TAG, "createCaptureSession - failed with exception ", e);
            }
        }
        List<Surface> outSurfaces = new ArrayList<>(outputConfigurations.size());
        for (OutputConfiguration config : outputConfigurations) {
            outSurfaces.add(config.getSurface());
        }
        // Fire onConfigured if configureOutputs succeeded, fire onConfigureFailed otherwise.
        CameraCaptureSessionCore newSession = null;
        if (isConstrainedHighSpeed) {
            newSession = new CameraConstrainedHighSpeedCaptureSessionImpl(mNextSessionId++, outSurfaces, callback, handler, this, mDeviceHandler, configureSuccess, mCharacteristics);
        } else {
            newSession = new CameraCaptureSessionImpl(mNextSessionId++, input, outSurfaces, callback, handler, this, mDeviceHandler, configureSuccess);
        }
        // TODO: wait until current session closes, then create the new session
        mCurrentSession = newSession;
        if (pendingException != null) {
            throw pendingException;
        }
        mSessionStateCallback = mCurrentSession.getDeviceStateCallback();
    }
}