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/*
* Copyright (C) 2021 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 android.hardware.camera2.params;
import android.annotation.NonNull;
import android.annotation.IntRange;
import java.util.Objects;
/**
* A utility class describing the properties of one stream of fixed-size image buffers
* backing a multi-resolution image stream.
*
* <p>A group of {@link MultiResolutionStreamInfo} are used to describe the properties of a
* multi-resolution image stream for a particular format. The
* {@link android.hardware.camera2.MultiResolutionImageReader} class represents a
* multi-resolution output stream, and is constructed using a group of
* {@link MultiResolutionStreamInfo}. A group of {@link MultiResolutionStreamInfo} can also be used
* to create a multi-resolution reprocessable camera capture session. See
* {@link android.hardware.camera2.params.InputConfiguration} for details.</p>
*
* @see InputConfiguration
* @see android.hardware.camera2.MultiResolutionImageReader
*/
public class MultiResolutionStreamInfo {
private int mStreamWidth;
private int mStreamHeight;
private String mPhysicalCameraId;
/**
* Create a new {@link MultiResolutionStreamInfo}.
*
* <p>This class creates a {@link MultiResolutionStreamInfo} using image width, image height,
* and the physical camera Id images originate from.</p>
*
* <p>Normally applications do not need to create these directly. Use {@link
* MultiResolutionStreamConfigurationMap#getOutputInfo} or {@link
* MultiResolutionStreamConfigurationMap#getInputInfo} to obtain them for a particular format
* instead.</p>
*
* @param streamWidth The width in pixels of the camera stream
* @param streamHeight The height in pixels of the camera stream
* @param physicalCameraId The physical camera Id the camera stream is associated with
* @throws IllegalArgumentException if the streamWidth or streamHeight is invalid (either zero
* or negative).
*/
public MultiResolutionStreamInfo(@IntRange(from = 1) int streamWidth,
@IntRange(from = 1) int streamHeight,
@NonNull String physicalCameraId) {
if (streamWidth <= 0) {
throw new IllegalArgumentException("Invalid stream width " + streamWidth);
}
if (streamHeight <= 0) {
throw new IllegalArgumentException("Invalid stream height " + streamHeight);
}
mStreamWidth = streamWidth;
mStreamHeight = streamHeight;
mPhysicalCameraId = physicalCameraId;
}
/**
* The width of this particular image buffer stream in pixels.
*/
public @IntRange(from = 1) int getWidth() {
return mStreamWidth;
}
/**
* The height of this particular image buffer stream in pixels.
*/
public @IntRange(from = 1) int getHeight() {
return mStreamHeight;
}
/**
* The physical camera Id of this particular image buffer stream.
*/
public @NonNull String getPhysicalCameraId() {
return mPhysicalCameraId;
}
/**
* Check if this {@link MultiResolutionStreamInfo} is equal to another
* {@link MultiResolutionStreamInfo}.
*
* @return {@code true} if the objects were equal, {@code false} otherwise
*/
@Override
public boolean equals(final Object obj) {
if (obj == null) {
return false;
}
if (this == obj) {
return true;
}
if (obj instanceof MultiResolutionStreamInfo) {
final MultiResolutionStreamInfo other = (MultiResolutionStreamInfo) obj;
return mStreamWidth == other.mStreamWidth &&
mStreamHeight == other.mStreamHeight &&
mPhysicalCameraId.equals(other.mPhysicalCameraId);
}
return false;
}
/**
* {@inheritDoc}
*/
@Override
public int hashCode() {
return Objects.hash(
mStreamWidth, mStreamHeight, mPhysicalCameraId);
}
}
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