/*
* Copyright (C) 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.core;
import android.graphics.ImageFormat;
import android.media.ImageReader;
import androidx.annotation.RequiresApi;
import com.google.auto.value.AutoValue;
/** Recommends formats for a combination of {@link ImageReader} instances. */
@RequiresApi(21) // TODO(b/200306659): Remove and replace with annotation on package-info.java
final class ImageReaderFormatRecommender {
private ImageReaderFormatRecommender() {
}
/** Chooses a combination which is compatible for the current device. */
static FormatCombo chooseCombo() {
// TODO(b/128944206): Currently we don't support shared image readers, so we only need to
// return this single combination. Revisit when shared image readers are reintroduced.
return FormatCombo.create(ImageFormat.JPEG, ImageFormat.YUV_420_888);
}
/** Container for a combination of {@link ImageReader} formats. */
@AutoValue
abstract static class FormatCombo {
static FormatCombo create(int imageCaptureFormat, int imageAnalysisFormat) {
return new AutoValue_ImageReaderFormatRecommender_FormatCombo(
imageCaptureFormat, imageAnalysisFormat);
}
// Returns the format for image capture.
abstract int imageCaptureFormat();
// Returns the format for image analysis.
abstract int imageAnalysisFormat();
}
}