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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.impl;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.graphics.ImageFormat;
import android.graphics.PixelFormat;
import android.hardware.camera2.CameraExtensionCharacteristics;
import android.hardware.camera2.params.OutputConfiguration;
import android.hardware.camera2.params.StreamConfigurationMap;
import android.hardware.camera2.utils.SurfaceUtils;
import android.media.Image;
import android.media.ImageWriter;
import android.os.Handler;
import android.util.Log;
import android.util.Size;
import android.view.Surface;
import java.util.HashMap;
import java.util.List;
import java.util.concurrent.Executor;
import java.util.concurrent.RejectedExecutionException;
public final class CameraExtensionUtils {
private static final String TAG = "CameraExtensionUtils";
public final static int JPEG_DEFAULT_QUALITY = 100;
public final static int JPEG_DEFAULT_ROTATION = 0;
public static final int[] SUPPORTED_CAPTURE_OUTPUT_FORMATS = {
CameraExtensionCharacteristics.PROCESSING_INPUT_FORMAT,
ImageFormat.JPEG
};
public static class SurfaceInfo {
public int mWidth = 0;
public int mHeight = 0;
public int mFormat = PixelFormat.RGBA_8888;
public long mUsage = 0;
}
public static final class HandlerExecutor implements Executor {
private final Handler mHandler;
public HandlerExecutor(Handler handler) {
mHandler = handler;
}
@Override
public void execute(Runnable runCmd) {
try {
mHandler.post(runCmd);
} catch (RejectedExecutionException e) {
Log.w(TAG, "Handler thread unavailable, skipping message!");
}
}
}
public static @NonNull SurfaceInfo querySurface(@NonNull Surface s) {
ImageWriter writer = null;
Image img = null;
SurfaceInfo surfaceInfo = new SurfaceInfo();
int nativeFormat = SurfaceUtils.detectSurfaceFormat(s);
int dataspace = SurfaceUtils.getSurfaceDataspace(s);
Size surfaceSize = SurfaceUtils.getSurfaceSize(s);
surfaceInfo.mFormat = nativeFormat;
surfaceInfo.mWidth = surfaceSize.getWidth();
surfaceInfo.mHeight = surfaceSize.getHeight();
surfaceInfo.mUsage = SurfaceUtils.getSurfaceUsage(s);
// Jpeg surfaces cannot be queried for their usage and other parameters
// in the usual way below. A buffer can only be de-queued after the
// producer overrides the surface dimensions to (width*height) x 1.
if ((nativeFormat == StreamConfigurationMap.HAL_PIXEL_FORMAT_BLOB) &&
(dataspace == StreamConfigurationMap.HAL_DATASPACE_V0_JFIF)) {
surfaceInfo.mFormat = ImageFormat.JPEG;
return surfaceInfo;
}
return surfaceInfo;
}
public static Surface getBurstCaptureSurface(
@NonNull List<OutputConfiguration> outputConfigs,
@NonNull HashMap<Integer, List<Size>> supportedCaptureSizes) {
for (OutputConfiguration config : outputConfigs) {
SurfaceInfo surfaceInfo = querySurface(config.getSurface());
for (int supportedFormat : SUPPORTED_CAPTURE_OUTPUT_FORMATS) {
if (surfaceInfo.mFormat == supportedFormat) {
Size captureSize = new Size(surfaceInfo.mWidth, surfaceInfo.mHeight);
if (supportedCaptureSizes.containsKey(supportedFormat)) {
if (supportedCaptureSizes.get(surfaceInfo.mFormat).contains(captureSize)) {
return config.getSurface();
} else {
throw new IllegalArgumentException("Capture size not supported!");
}
}
return config.getSurface();
}
}
}
return null;
}
public static @Nullable Surface getRepeatingRequestSurface(
@NonNull List<OutputConfiguration> outputConfigs,
@Nullable List<Size> supportedPreviewSizes) {
for (OutputConfiguration config : outputConfigs) {
SurfaceInfo surfaceInfo = querySurface(config.getSurface());
if ((surfaceInfo.mFormat ==
CameraExtensionCharacteristics.NON_PROCESSING_INPUT_FORMAT) ||
// The default RGBA_8888 is also implicitly supported because camera will
// internally override it to
// 'CameraExtensionCharacteristics.NON_PROCESSING_INPUT_FORMAT'
(surfaceInfo.mFormat == PixelFormat.RGBA_8888)) {
Size repeatingRequestSurfaceSize = new Size(surfaceInfo.mWidth,
surfaceInfo.mHeight);
if ((supportedPreviewSizes == null) ||
(!supportedPreviewSizes.contains(repeatingRequestSurfaceSize))) {
throw new IllegalArgumentException("Repeating request surface size " +
repeatingRequestSurfaceSize + " not supported!");
}
return config.getSurface();
}
}
return null;
}
}
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