AspectRatioLegacyApi21Quirk.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.quirk;
import android.hardware.camera2.CameraCharacteristics;
import android.os.Build;
import androidx.annotation.NonNull;
import androidx.annotation.RequiresApi;
import androidx.camera.camera2.internal.compat.CameraCharacteristicsCompat;
import androidx.camera.camera2.internal.compat.workaround.TargetAspectRatio;
import androidx.camera.core.impl.Quirk;
/**
* <p>QuirkSummary
* Bug Id: b/128924712
* Description: Quirk that produces stretched use cases on all the legacy API 21 devices. If
* the device is LEGACY + Android 5.0, then return the same aspect ratio as maximum JPEG
* resolution. The Camera2 LEGACY mode API always sends the HAL a configure call with the
* same aspect ratio as the maximum JPEG resolution, and do the cropping/scaling before
* returning the output. There is a bug because of a flipped scaling factor in the
* intermediate texture transform matrix, and it was fixed in L MR1.
* Device(s): All the legacy API 21 devices
* @see androidx.camera.camera2.internal.compat.workaround.TargetAspectRatio
*/
@RequiresApi(21) // TODO(b/200306659): Remove and replace with annotation on package-info.java
public class AspectRatioLegacyApi21Quirk implements Quirk {
static boolean load(@NonNull final CameraCharacteristicsCompat cameraCharacteristicsCompat) {
final Integer level = cameraCharacteristicsCompat.get(
CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL);
return level != null && level == CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY
&& Build.VERSION.SDK_INT == 21;
}
/**
* Get the corrected aspect ratio.
*/
@TargetAspectRatio.Ratio
public int getCorrectedAspectRatio() {
return TargetAspectRatio.RATIO_MAX_JPEG;
}
}