StreamConfigurationMapCompatBaseImpl.java

/*
 * Copyright 2022 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.graphics.SurfaceTexture;
import android.hardware.camera2.params.StreamConfigurationMap;
import android.util.Size;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.annotation.RequiresApi;
import androidx.camera.core.impl.ImageFormatConstants;

@RequiresApi(21)
class StreamConfigurationMapCompatBaseImpl
        implements StreamConfigurationMapCompat.StreamConfigurationMapCompatImpl {

    final StreamConfigurationMap mStreamConfigurationMap;

    StreamConfigurationMapCompatBaseImpl(@NonNull StreamConfigurationMap map) {
        mStreamConfigurationMap = map;
    }

    @Nullable
    @Override
    public Size[] getOutputSizes(int format) {
        Size[] sizes;
        if (format == ImageFormatConstants.INTERNAL_DEFINED_IMAGE_FORMAT_PRIVATE) {
            // This is a little tricky that 0x22 that is internal defined in
            // StreamConfigurationMap.java to be equal to ImageFormat.PRIVATE that is public
            // after Android level 23 but not public in Android L. Use {@link SurfaceTexture}
            // or {@link MediaCodec} will finally mapped to 0x22 in StreamConfigurationMap to
            // retrieve the output sizes information.
            sizes = mStreamConfigurationMap.getOutputSizes(SurfaceTexture.class);
        } else {
            sizes = mStreamConfigurationMap.getOutputSizes(format);
        }
        return sizes;
    }

    @Nullable
    @Override
    public <T> Size[] getOutputSizes(@NonNull Class<T> klass) {
        return mStreamConfigurationMap.getOutputSizes(klass);
    }
}