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// Copyright (C) 2022 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
package org.qtproject.qt.android.multimedia;
import android.annotation.TargetApi;
import android.content.Context;
import android.graphics.ImageFormat;
import android.graphics.Rect;
import android.hardware.camera2.CameraCharacteristics;
import android.hardware.camera2.CameraManager;
import android.hardware.camera2.CaptureRequest;
import android.hardware.camera2.params.StreamConfigurationMap;
import android.util.Range;
import android.util.Size;
import android.util.Log;
import java.lang.String;
import java.util.ArrayList;
import java.util.Map;
import java.util.WeakHashMap;
public class QtVideoDeviceManager {
CameraManager mCameraManager;
Map<String, CameraCharacteristics> cache;
public QtVideoDeviceManager(Context context) {
mCameraManager = (CameraManager) context.getSystemService(Context.CAMERA_SERVICE);
cache = new WeakHashMap<String, CameraCharacteristics>();
}
public CameraCharacteristics getCameraCharacteristics(String cameraId) {
if (cache.containsKey(cameraId))
return cache.get(cameraId);
try {
CameraCharacteristics cameraCharacteristics = mCameraManager.getCameraCharacteristics(cameraId);
cache.put(cameraId, cameraCharacteristics);
return cameraCharacteristics;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
public String[] getCameraIdList() {
try {
return mCameraManager.getCameraIdList();
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
public int getSensorOrientation(String cameraId) {
CameraCharacteristics characteristics = getCameraCharacteristics(cameraId);
if (characteristics == null)
return 0;
return characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION);
}
public int getLensFacing(String cameraId) {
CameraCharacteristics characteristics = getCameraCharacteristics(cameraId);
if (characteristics == null)
return 0;
return characteristics.get(CameraCharacteristics.LENS_FACING);
}
public String[] getFpsRange(String cameraId) {
CameraCharacteristics characteristics = getCameraCharacteristics(cameraId);
if (characteristics == null)
return new String[0];
Range<Integer>[] ranges = characteristics.get(CameraCharacteristics.CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES);
String[] fps = new String[ranges.length];
for (int index = 0; index < ranges.length; index++) {
fps[index] = ranges[index].toString();
}
return fps;
}
public float getMaxZoom(String cameraId) {
float maxZoom = 1.0f;
final CameraCharacteristics characteristics = getCameraCharacteristics(cameraId);
if (characteristics != null)
maxZoom = characteristics.get(CameraCharacteristics.SCALER_AVAILABLE_MAX_DIGITAL_ZOOM);
return maxZoom;
}
public Rect getActiveArraySize(String cameraId) {
Rect activeArraySize = new Rect();
final CameraCharacteristics characteristics = getCameraCharacteristics(cameraId);
if (characteristics != null)
activeArraySize = characteristics.get(CameraCharacteristics.SENSOR_INFO_ACTIVE_ARRAY_SIZE);
return activeArraySize;
}
public String[] getStreamConfigurationsSizes(String cameraId, int imageFormat) {
CameraCharacteristics characteristics = getCameraCharacteristics(cameraId);
if (characteristics == null)
return new String[0];
StreamConfigurationMap map = characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
Size[] sizes = map.getOutputSizes(imageFormat);
String[] stream = new String[sizes.length];
for (int index = 0; index < sizes.length; index++) {
stream[index] = sizes[index].toString();
}
return stream;
}
public int stringToControlAEMode(String mode) {
switch (mode) {
case "off":
return CaptureRequest.CONTROL_AE_MODE_ON;
case "auto":
return CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH;
case "on":
return CaptureRequest.CONTROL_AE_MODE_ON_ALWAYS_FLASH;
case "redeye":
return CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH_REDEYE;
case "external":
return CaptureRequest.CONTROL_AE_MODE_ON_EXTERNAL_FLASH;
default:
return -1;
}
}
public String controlAEModeToString(int mode) {
switch (mode) {
case CaptureRequest.CONTROL_AE_MODE_ON:
return "off";
case CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH:
return "auto";
case CaptureRequest.CONTROL_AE_MODE_ON_ALWAYS_FLASH:
return "on";
case CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH_REDEYE:
return "redeye";
case CaptureRequest.CONTROL_AE_MODE_ON_EXTERNAL_FLASH:
return "external";
case CaptureRequest.CONTROL_AE_MODE_OFF:
default:
return "unknown";
}
}
public int[] getSupportedAfModes(String cameraId) {
CameraCharacteristics characteristics = getCameraCharacteristics(cameraId);
if (characteristics == null)
return new int[0];
return characteristics.get(CameraCharacteristics.CONTROL_AF_AVAILABLE_MODES);
}
public String[] getSupportedFlashModes(String cameraId) {
CameraCharacteristics characteristics = getCameraCharacteristics(cameraId);
if (characteristics == null)
return new String[0];
int supportedFlashModes[] = characteristics.get(CameraCharacteristics.CONTROL_AE_AVAILABLE_MODES);
ArrayList<String> supportedFlashModesList = new ArrayList<String>();
for (int index = 0; index < supportedFlashModes.length; index++) {
supportedFlashModesList.add(controlAEModeToString(supportedFlashModes[index]));
}
String[] ret = new String[ supportedFlashModesList.size() ];
return supportedFlashModesList.toArray(ret);
}
public boolean isTorchModeSupported(String cameraId) {
boolean ret = false;
final CameraCharacteristics characteristics = getCameraCharacteristics(cameraId);
if (characteristics != null)
ret = characteristics.get(CameraCharacteristics.FLASH_INFO_AVAILABLE);
return ret;
}
}
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