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Unverified Commit cddbe420 authored by Sauhard Pande's avatar Sauhard Pande Committed by Michael Bestas
Browse files

camera: Support exposing aux camera to apps 



Co-authored-by: default avatarMichael Bestas <mkbestas@lineageos.org>
Co-authored-by: default avatarPaul Keith <javelinanddart@gmail.com>
Co-authored-by: default avatarRashed Abdel-Tawab <rashed@linux.com>
Change-Id: I15910154c6df205e6d4e00bfad30a00c9e3d5bee
parent 9eed3121

core/java/android/hardware/Camera.java

+33 −1
Original line number Diff line number Diff line
@@ -48,6 +48,7 @@ import android.os.Message; 
import android.os.Process;

import android.os.RemoteException;

import android.os.ServiceManager;

import android.os.SystemProperties;

import android.text.TextUtils;

import android.util.Log;

import android.view.Surface;
@@ -61,6 +62,7 @@ import com.android.internal.app.IAppOpsService; 
import java.io.IOException;

import java.lang.ref.WeakReference;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.LinkedHashMap;

import java.util.List;

import java.util.Objects;
@@ -264,6 +266,25 @@ public class Camera { 
     */

    private static final int CAMERA_FACE_DETECTION_SW = 1;



    /**

     * @hide

     */

    public static boolean shouldExposeAuxCamera() {

        /**

         * Force to expose only two cameras

         * if the package name does not falls in this bucket

         */

        String packageName = ActivityThread.currentOpPackageName();

        if (packageName == null)

            return true;

        List<String> packageList = Arrays.asList(

                SystemProperties.get("vendor.camera.aux.packagelist", packageName).split(","));

        List<String> packageExcludelist = Arrays.asList(

                SystemProperties.get("vendor.camera.aux.packageexcludelist", "").split(","));



        return packageList.contains(packageName) && !packageExcludelist.contains(packageName);

    }



    /**

     * Returns the number of physical cameras available on this device.

     * The return value of this method might change dynamically if the device
@@ -280,7 +301,12 @@ public class Camera { 
     *   cameras or an error was encountered enumerating them.

     */

    public static int getNumberOfCameras() {

        return getNumberOfCameras(ActivityThread.currentApplication().getApplicationContext());

        int numberOfCameras =

                getNumberOfCameras(ActivityThread.currentApplication().getApplicationContext());

        if (!shouldExposeAuxCamera() && numberOfCameras > 2) {

            numberOfCameras = 2;

        }

        return numberOfCameras;

    }



    /**
@@ -307,6 +333,9 @@ public class Camera { 
     *    low-level failure).

     */

    public static void getCameraInfo(int cameraId, CameraInfo cameraInfo) {

        if (cameraId >= getNumberOfCameras()) {

            throw new RuntimeException("Unknown camera ID");

        }

        Context context = ActivityThread.currentApplication().getApplicationContext();

        final int rotationOverride = CameraManager.getRotationOverride(context);

        getCameraInfo(cameraId, context, rotationOverride, cameraInfo);
@@ -563,6 +592,9 @@ public class Camera { 


    /** used by Camera#open, Camera#open(int) */

    Camera(int cameraId, @NonNull Context context, int rotationOverride) {

        if (cameraId >= getNumberOfCameras()) {

            throw new RuntimeException("Unknown camera ID");

        }

        Objects.requireNonNull(context);

        final int err = cameraInit(cameraId, context, rotationOverride);

        if (checkInitErrors(err)) {

core/java/android/hardware/camera2/CameraManager.java

+8 −0
Original line number Diff line number Diff line
@@ -38,6 +38,7 @@ import android.compat.annotation.Overridable; 
import android.content.Context;

import android.content.pm.PackageManager;

import android.graphics.Point;

import android.hardware.Camera;

import android.hardware.CameraExtensionSessionStats;

import android.hardware.CameraStatus;

import android.hardware.ICameraService;
@@ -2284,7 +2285,9 @@ public final class CameraManager { 


        private String[] extractCameraIdListLocked(int deviceId, int devicePolicy) {

            List<String> cameraIds = new ArrayList<>();

            boolean exposeAuxCamera = Camera.shouldExposeAuxCamera();

            for (int i = 0; i < mDeviceStatus.size(); i++) {

                if (!exposeAuxCamera && i == 2) break;

                int status = mDeviceStatus.valueAt(i);

                DeviceCameraInfo info = mDeviceStatus.keyAt(i);

                if (status == ICameraServiceListener.STATUS_NOT_PRESENT
@@ -2834,6 +2837,11 @@ public final class CameraManager { 
        }



        private void onStatusChangedLocked(int status, DeviceCameraInfo info) {

            if (!Camera.shouldExposeAuxCamera() && Integer.parseInt(info.mCameraId) >= 2) {

                Log.w(TAG, String.format("Ignoring status update of camera %d", info.mDeviceId));

                return;

            }



            if (DEBUG) {

                Log.v(TAG,

                        String.format("Camera id %s has status changed to 0x%x for device %d",