CameraDeviceCompatApi24Impl.java
/*
* Copyright 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package androidx.camera.camera2.internal.compat;
import android.hardware.camera2.CameraAccessException;
import android.hardware.camera2.CameraCaptureSession;
import android.hardware.camera2.CameraDevice;
import android.hardware.camera2.params.InputConfiguration;
import android.os.Handler;
import androidx.annotation.NonNull;
import androidx.annotation.RequiresApi;
import androidx.camera.camera2.internal.compat.params.InputConfigurationCompat;
import androidx.camera.camera2.internal.compat.params.OutputConfigurationCompat;
import androidx.camera.camera2.internal.compat.params.SessionConfigurationCompat;
import androidx.camera.core.impl.utils.MainThreadAsyncHandler;
import androidx.core.util.Preconditions;
import java.util.List;
@RequiresApi(24)
class CameraDeviceCompatApi24Impl extends CameraDeviceCompatApi23Impl {
@Override
public void createCaptureSession(@NonNull CameraDevice device,
@NonNull SessionConfigurationCompat config) throws CameraAccessException {
checkPreconditions(device, config);
// Wrap the executor in the callback
CameraCaptureSession.StateCallback cb =
new CameraCaptureSessionCompat.StateCallbackExecutorWrapper(
config.getExecutor(), config.getStateCallback());
// Convert the OutputConfigurations to surfaces
List<OutputConfigurationCompat> outputs = config.getOutputConfigurations();
Handler handler = MainThreadAsyncHandler.getInstance();
InputConfigurationCompat inputConfigCompat = config.getInputConfiguration();
if (inputConfigCompat != null) {
// Client is requesting a reprocessable capture session
InputConfiguration inputConfig = (InputConfiguration) inputConfigCompat.unwrap();
Preconditions.checkNotNull(inputConfig);
// Use OutputConfigurations on this API level
device.createReprocessableCaptureSessionByConfigurations(inputConfig,
SessionConfigurationCompat.transformFromCompat(outputs), cb, handler);
} else if (config.getSessionType() == SessionConfigurationCompat.SESSION_HIGH_SPEED) {
// Client is requesting a high speed capture session
device.createConstrainedHighSpeedCaptureSession(unpackSurfaces(outputs), cb, handler);
} else {
// Fall back to a normal capture session (created from OutputConfigurations)
device.createCaptureSessionByOutputConfigurations(
SessionConfigurationCompat.transformFromCompat(outputs), cb, handler);
}
}
}