AeFpsRange.java
/*
* Copyright 2020 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.workaround;
import android.hardware.camera2.CaptureRequest;
import android.util.Range;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.camera.camera2.impl.Camera2ImplConfig;
import androidx.camera.camera2.internal.compat.quirk.AeFpsRangeLegacyQuirk;
import androidx.camera.core.impl.Quirks;
/**
* Sets an AE target FPS range on legacy devices to maintain good exposure.
*
* @see AeFpsRangeLegacyQuirk
*/
public class AeFpsRange {
@Nullable
private final Range<Integer> mAeTargetFpsRange;
/** Chooses the AE target FPS range on legacy devices. */
public AeFpsRange(@NonNull final Quirks quirks) {
final AeFpsRangeLegacyQuirk quirk = quirks.get(AeFpsRangeLegacyQuirk.class);
if (quirk == null) {
mAeTargetFpsRange = null;
} else {
mAeTargetFpsRange = quirk.getRange();
}
}
/**
* Sets the {@link android.hardware.camera2.CaptureRequest#CONTROL_AE_TARGET_FPS_RANGE}
* option on legacy device when possible.
*/
public void addAeFpsRangeOptions(@NonNull Camera2ImplConfig.Builder configBuilder) {
if (mAeTargetFpsRange != null) {
configBuilder.setCaptureRequestOption(CaptureRequest.CONTROL_AE_TARGET_FPS_RANGE,
mAeTargetFpsRange);
}
}
}