Camera WIP hardcode to make it work

Add an option to list the device cameras.

Co-authored-by: Romain Vimont <rom@rom1v.com>

app/data/bash-completion/scrcpy

@@ -23,6 +23,7 @@ _scrcpy() {
         --kill-adb-on-close
         -K --hid-keyboard
         --legacy-paste
+        --list-cameras
         --list-displays
         --list-encoders
         --lock-video-orientation

app/data/zsh-completion/_scrcpy

@@ -30,6 +30,7 @@ arguments=(
     '--kill-adb-on-close[Kill adb when scrcpy terminates]'
     {-K,--hid-keyboard}'[Simulate a physical keyboard by using HID over AOAv2]'
     '--legacy-paste[Inject computer clipboard text as a sequence of key events on Ctrl+v]'
+    '--list-cameras[List cameras available on the device]'
     '--list-displays[List displays available on the device]'
     '--list-encoders[List video and audio encoders available on the device]'
     '--lock-video-orientation=[Lock video orientation]:orientation:(unlocked initial 0 1 2 3)'

app/scrcpy.1

@@ -155,6 +155,9 @@ Inject computer clipboard text as a sequence of key events on Ctrl+v (like MOD+S
 
 This is a workaround for some devices not behaving as expected when setting the device clipboard programmatically.
 
+.B \-\-list\-cameras
+List cameras available on the device.
+
 .TP
 .B \-\-list\-encoders
 List video and audio encoders available on the device.

app/src/cli.c

@@ -79,6 +79,7 @@ enum {
     OPT_AUDIO_SOURCE,
     OPT_KILL_ADB_ON_CLOSE,
     OPT_TIME_LIMIT,
+    OPT_LIST_CAMERAS,
 };
 
 struct sc_option {
@@ -312,6 +313,11 @@ static const struct sc_option options[] = {
                 "This is a workaround for some devices not behaving as "
                 "expected when setting the device clipboard programmatically.",
     },
+    {
+        .longopt_id = OPT_LIST_CAMERAS,
+        .longopt = "list-cameras",
+        .text = "List device cameras.",
+    },
     {
         .longopt_id = OPT_LIST_DISPLAYS,
         .longopt = "list-displays",
@@ -1944,6 +1950,9 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
                      "platform).");
                 return false;
 #endif
+            case OPT_LIST_CAMERAS:
+                opts->list_cameras = true;
+                break;
             case OPT_LIST_ENCODERS:
                 opts->list_encoders = true;
                 break;

app/src/options.c

@@ -81,5 +81,6 @@ const struct scrcpy_options scrcpy_options_default = {
     .require_audio = false,
     .list_encoders = false,
     .list_displays = false,
+    .list_cameras = false,
     .kill_adb_on_close = false,
 };

app/src/options.h

@@ -181,6 +181,7 @@ struct scrcpy_options {
     bool require_audio;
     bool list_encoders;
     bool list_displays;
+    bool list_cameras;
     bool kill_adb_on_close;
 };
 

app/src/scrcpy.c

@@ -381,6 +381,7 @@ scrcpy(struct scrcpy_options *options) {
         .power_on = options->power_on,
         .list_encoders = options->list_encoders,
         .list_displays = options->list_displays,
+        .list_cameras = options->list_cameras,
         .kill_adb_on_close = options->kill_adb_on_close,
     };
 
@@ -399,7 +400,8 @@ scrcpy(struct scrcpy_options *options) {
 
     server_started = true;
 
-    if (options->list_encoders || options->list_displays) {
+    if (options->list_encoders || options->list_displays
+            || options->list_cameras) {
         bool ok = await_for_server(NULL);
         ret = ok ? SCRCPY_EXIT_SUCCESS : SCRCPY_EXIT_FAILURE;
         goto end;

app/src/server.c

@@ -316,6 +316,9 @@ execute_server(struct sc_server *server,
     if (params->list_displays) {
         ADD_PARAM("list_displays=true");
     }
+    if (params->list_cameras) {
+        ADD_PARAM("list_cameras=true");
+    }
 
 #undef ADD_PARAM
 
@@ -895,7 +898,8 @@ run_server(void *data) {
 
     // If --list-* is passed, then the server just prints the requested data
     // then exits.
-    if (params->list_encoders || params->list_displays) {
+    if (params->list_encoders || params->list_displays
+            || params->list_cameras) {
         sc_pid pid = execute_server(server, params);
         if (pid == SC_PROCESS_NONE) {
             goto error_connection_failed;

app/src/server.h

@@ -58,6 +58,7 @@ struct sc_server_params {
     bool power_on;
     bool list_encoders;
     bool list_displays;
+    bool list_cameras;
     bool kill_adb_on_close;
 };
 

server/src/main/java/com/genymobile/scrcpy/CameraCapture.java

@@ -0,0 +1,197 @@
+package com.genymobile.scrcpy;
+
+import com.genymobile.scrcpy.wrappers.ServiceManager;
+
+import android.annotation.SuppressLint;
+import android.annotation.TargetApi;
+import android.graphics.Rect;
+import android.hardware.camera2.CameraAccessException;
+import android.hardware.camera2.CameraCaptureSession;
+import android.hardware.camera2.CameraCharacteristics;
+import android.hardware.camera2.CameraDevice;
+import android.hardware.camera2.CaptureFailure;
+import android.hardware.camera2.CaptureRequest;
+import android.hardware.camera2.params.OutputConfiguration;
+import android.hardware.camera2.params.SessionConfiguration;
+import android.hardware.camera2.params.StreamConfigurationMap;
+import android.media.MediaCodec;
+import android.os.Build;
+import android.os.Handler;
+import android.os.HandlerThread;
+import android.util.Log;
+import android.view.Surface;
+
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.Executor;
+import java.util.concurrent.Executors;
+
+public class CameraCapture extends SurfaceCapture {
+
+    private static final Executor EXECUTOR = Executors.newSingleThreadExecutor();
+
+    private final String cameraId;
+
+    private HandlerThread cameraThread;
+    private Handler cameraHandler;
+    private CameraDevice cameraDevice;
+    private int maxSize;
+
+    public CameraCapture(String cameraId, int maxSize) {
+        this.cameraId = cameraId;
+        this.maxSize = maxSize;
+    }
+
+    @Override
+    public void init() throws IOException {
+        cameraThread = new HandlerThread("camera");
+        cameraThread.start();
+        cameraHandler = new Handler(cameraThread.getLooper());
+
+        try {
+            cameraDevice = openCamera(cameraId);
+        } catch (CameraAccessException | InterruptedException e) {
+            throw new IOException(e);
+        }
+    }
+
+    @Override
+    public void start(Surface surface) throws IOException {
+        try {
+            CameraCaptureSession session = createCaptureSession(cameraDevice, surface);
+            CaptureRequest.Builder requestBuilder = cameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_RECORD);
+            requestBuilder.addTarget(surface);
+            CaptureRequest request = requestBuilder.build();
+            setRepeatingRequest(session, request);
+        } catch (CameraAccessException | InterruptedException e) {
+            throw new IOException(e);
+        }
+    }
+
+    @Override
+    public void release() {
+        if (cameraDevice != null) {
+            cameraDevice.close();
+        }
+        if (cameraThread != null) {
+            cameraThread.quitSafely();
+        }
+    }
+
+    @Override
+    public Size getSize() {
+        return new Size(1920, 1080);
+    }
+
+    @Override
+    public void setMaxSize(int size) {
+        maxSize = size;
+    }
+
+    @SuppressLint("MissingPermission")
+    @TargetApi(Build.VERSION_CODES.S)
+    private CameraDevice openCamera(String id) throws CameraAccessException, InterruptedException {
+        Ln.v("Open Camera: " + id);
+
+        CompletableFuture<CameraDevice> future = new CompletableFuture<>();
+        ServiceManager.getCameraManager().openCamera(id, new CameraDevice.StateCallback() {
+            @Override
+            public void onOpened(CameraDevice camera) {
+                Ln.v("Open Camera Success");
+                future.complete(camera);
+            }
+
+            @Override
+            public void onDisconnected(CameraDevice camera) {
+                Ln.w("Camera disconnected");
+                // TODO
+            }
+
+            @Override
+            public void onError(CameraDevice camera, int error) {
+                int cameraAccessExceptionErrorCode;
+                switch (error) {
+                    case CameraDevice.StateCallback.ERROR_CAMERA_IN_USE:
+                        cameraAccessExceptionErrorCode = CameraAccessException.CAMERA_IN_USE;
+                        break;
+                    case CameraDevice.StateCallback.ERROR_MAX_CAMERAS_IN_USE:
+                        cameraAccessExceptionErrorCode = CameraAccessException.MAX_CAMERAS_IN_USE;
+                        break;
+                    case CameraDevice.StateCallback.ERROR_CAMERA_DISABLED:
+                        cameraAccessExceptionErrorCode = CameraAccessException.CAMERA_DISABLED;
+                        break;
+                    case CameraDevice.StateCallback.ERROR_CAMERA_DEVICE:
+                    case CameraDevice.StateCallback.ERROR_CAMERA_SERVICE:
+                    default:
+                        cameraAccessExceptionErrorCode = CameraAccessException.CAMERA_ERROR;
+                        break;
+                }
+                future.completeExceptionally(new CameraAccessException(cameraAccessExceptionErrorCode));
+            }
+        }, cameraHandler);
+
+        try {
+            return future.get();
+        } catch (ExecutionException e) {
+            throw (CameraAccessException) e.getCause();
+        }
+    }
+
+    @TargetApi(Build.VERSION_CODES.S)
+    private CameraCaptureSession createCaptureSession(CameraDevice camera, Surface surface) throws CameraAccessException, InterruptedException {
+        Ln.d("Create Capture Session");
+
+        CompletableFuture<CameraCaptureSession> future = new CompletableFuture<>();
+        // replace by createCaptureSession(SessionConfiguration)
+        OutputConfiguration outputConfig = new OutputConfiguration(surface);
+        List<OutputConfiguration> outputs = Arrays.asList(outputConfig);
+        SessionConfiguration sessionConfig = new SessionConfiguration(SessionConfiguration.SESSION_REGULAR, outputs, EXECUTOR,
+                new CameraCaptureSession.StateCallback() {
+                    @Override
+                    public void onConfigured(CameraCaptureSession session) {
+                        Ln.d("Create Capture Session Success");
+                        future.complete(session);
+                    }
+
+                    @Override
+                    public void onConfigureFailed(CameraCaptureSession session) {
+                        future.completeExceptionally(new CameraAccessException(CameraAccessException.CAMERA_ERROR));
+                    }
+                });
+
+        camera.createCaptureSession(sessionConfig);
+
+        try {
+            return future.get();
+        } catch (ExecutionException e) {
+            throw (CameraAccessException) e.getCause();
+        }
+    }
+
+    @TargetApi(Build.VERSION_CODES.S)
+    private void setRepeatingRequest(CameraCaptureSession session, CaptureRequest request) throws CameraAccessException, InterruptedException {
+        CompletableFuture<Void> future = new CompletableFuture<>();
+        session.setRepeatingRequest(request, new CameraCaptureSession.CaptureCallback() {
+            @Override
+            public void onCaptureStarted(CameraCaptureSession session, CaptureRequest request, long timestamp, long frameNumber) {
+                future.complete(null);
+            }
+
+            @Override
+            public void onCaptureFailed(CameraCaptureSession session, CaptureRequest request, CaptureFailure failure) {
+                future.completeExceptionally(new CameraAccessException(CameraAccessException.CAMERA_ERROR));
+            }
+        }, cameraHandler);
+
+        try {
+            future.get();
+        } catch (ExecutionException e) {
+            throw (CameraAccessException) e.getCause();
+        }
+    }
+}

server/src/main/java/com/genymobile/scrcpy/LogUtils.java

@@ -3,6 +3,12 @@ package com.genymobile.scrcpy;
 import com.genymobile.scrcpy.wrappers.DisplayManager;
 import com.genymobile.scrcpy.wrappers.ServiceManager;
 
+import android.hardware.camera2.CameraAccessException;
+import android.hardware.camera2.CameraCharacteristics;
+import android.hardware.camera2.CameraManager;
+import android.hardware.camera2.params.StreamConfigurationMap;
+import android.media.MediaCodec;
+
 import java.util.List;
 
 public final class LogUtils {
@@ -60,4 +66,48 @@ public final class LogUtils {
         }
         return builder.toString();
     }
+
+    private static String getCameraFacingName(int facing) {
+        switch (facing) {
+            case CameraCharacteristics.LENS_FACING_FRONT:
+                return "front";
+            case CameraCharacteristics.LENS_FACING_BACK:
+                return "back";
+            case CameraCharacteristics.LENS_FACING_EXTERNAL:
+                return "external";
+            default:
+                return "unknown";
+        }
+    }
+
+    public static String buildCameraListMessage() {
+        StringBuilder builder = new StringBuilder("List of cameras:");
+        CameraManager cameraManager = ServiceManager.getCameraManager();
+        try {
+            String[] cameraIds = cameraManager.getCameraIdList();
+            if (cameraIds == null || cameraIds.length == 0) {
+                builder.append("\n    (none)");
+            } else {
+                for (String id : cameraIds) {
+                    builder.append("\n    --video-source=camera --camera=").append(id);
+                    CameraCharacteristics characteristics = cameraManager.getCameraCharacteristics(id);
+                    Integer facingInteger = characteristics.get(CameraCharacteristics.LENS_FACING);
+                    if (facingInteger != null) {
+                        int facing = facingInteger;
+                        builder.append("    (").append(getCameraFacingName(facing)).append(')');
+                    }
+
+                    StreamConfigurationMap configs = characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
+                    android.util.Size[] sizes = configs.getOutputSizes(MediaCodec.class);
+                    for (android.util.Size size : sizes) {
+                        // TODO remove (just for testing)
+                        builder.append("\n        - " + size.getWidth() + "x" + size.getHeight());
+                    }
+                }
+            }
+        } catch (CameraAccessException e) {
+            builder.append("\n    (access denied)");
+        }
+        return builder.toString();
+    }
 }

server/src/main/java/com/genymobile/scrcpy/Options.java

@@ -38,6 +38,7 @@ public class Options {
 
     private boolean listEncoders;
     private boolean listDisplays;
+    private boolean listCameras;
 
     // Options not used by the scrcpy client, but useful to use scrcpy-server directly
     private boolean sendDeviceMeta = true; // send device name and size
@@ -161,6 +162,10 @@ public class Options {
         return listDisplays;
     }
 
+    public boolean getListCameras() {
+        return listCameras;
+    }
+
     public boolean getSendDeviceMeta() {
         return sendDeviceMeta;
     }
@@ -306,6 +311,9 @@ public class Options {
                 case "list_displays":
                     options.listDisplays = Boolean.parseBoolean(value);
                     break;
+                case "list_cameras":
+                    options.listCameras = Boolean.parseBoolean(value);
+                    break;
                 case "send_device_meta":
                     options.sendDeviceMeta = Boolean.parseBoolean(value);
                     break;

server/src/main/java/com/genymobile/scrcpy/ScreenCapture.java

@@ -23,6 +23,18 @@ public class ScreenCapture extends SurfaceCapture implements Device.RotationList
         device.setFoldListener(this);
     }
 
+    @Override
+    public void start(Surface surface) {
+        ScreenInfo screenInfo = device.getScreenInfo();
+        Rect contentRect = screenInfo.getContentRect();
+
+        // does not include the locked video orientation
+        Rect unlockedVideoRect = screenInfo.getUnlockedVideoSize().toRect();
+        int videoRotation = screenInfo.getVideoRotation();
+        int layerStack = device.getLayerStack();
+        setDisplaySurface(display, surface, videoRotation, contentRect, unlockedVideoRect, layerStack);
+    }
+
     @Override
     public void release() {
         device.setRotationListener(null);
@@ -40,18 +52,6 @@ public class ScreenCapture extends SurfaceCapture implements Device.RotationList
         device.setMaxSize(size);
     }
 
-    @Override
-    public void setSurface(Surface surface) {
-        ScreenInfo screenInfo = device.getScreenInfo();
-        Rect contentRect = screenInfo.getContentRect();
-
-        // does not include the locked video orientation
-        Rect unlockedVideoRect = screenInfo.getUnlockedVideoSize().toRect();
-        int videoRotation = screenInfo.getVideoRotation();
-        int layerStack = device.getLayerStack();
-        setDisplaySurface(display, surface, videoRotation, contentRect, unlockedVideoRect, layerStack);
-    }
-
     @Override
     public void onFoldChanged(int displayId, boolean folded) {
         requestReset();

server/src/main/java/com/genymobile/scrcpy/Server.java

@@ -2,6 +2,7 @@ package com.genymobile.scrcpy;
 
 import android.os.BatteryManager;
 import android.os.Build;
+import android.os.Looper;
 
 import java.io.IOException;
 import java.util.ArrayList;
@@ -99,7 +100,8 @@ public final class Server {
         boolean audio = options.getAudio();
         boolean sendDummyByte = options.getSendDummyByte();
 
-        Workarounds.apply(audio);
+        boolean camera = true;
+        Workarounds.apply(audio, camera);
 
         List<AsyncProcessor> asyncProcessors = new ArrayList<>();
 
@@ -132,8 +134,9 @@ public final class Server {
             if (video) {
                 Streamer videoStreamer = new Streamer(connection.getVideoFd(), options.getVideoCodec(), options.getSendCodecMeta(),
                         options.getSendFrameMeta());
-                ScreenCapture screenCapture = new ScreenCapture(device);
-                SurfaceEncoder screenEncoder = new SurfaceEncoder(screenCapture, videoStreamer, options.getVideoBitRate(), options.getMaxFps(),
+                CameraCapture capture = new CameraCapture("0", 1920);
+                //ScreenCapture screenCapture = new ScreenCapture(device);
+                SurfaceEncoder screenEncoder = new SurfaceEncoder(capture, videoStreamer, options.getVideoBitRate(), options.getMaxFps(),
                         options.getVideoCodecOptions(), options.getVideoEncoder(), options.getDownsizeOnError());
                 asyncProcessors.add(screenEncoder);
             }
@@ -180,7 +183,7 @@ public final class Server {
 
         Ln.initLogLevel(options.getLogLevel());
 
-        if (options.getListEncoders() || options.getListDisplays()) {
+        if (options.getListEncoders() || options.getListDisplays() || options.getListCameras()) {
             if (options.getCleanup()) {
                 CleanUp.unlinkSelf();
             }
@@ -192,6 +195,10 @@ public final class Server {
             if (options.getListDisplays()) {
                 Ln.i(LogUtils.buildDisplayListMessage());
             }
+            if (options.getListCameras()) {
+                Workarounds.apply(false, true);
+                Ln.i(LogUtils.buildCameraListMessage());
+            }
             // Just print the requested data, do not mirror
             return;
         }

server/src/main/java/com/genymobile/scrcpy/SurfaceCapture.java

@@ -2,6 +2,7 @@ package com.genymobile.scrcpy;
 
 import android.view.Surface;
 
+import java.io.IOException;
 import java.util.concurrent.atomic.AtomicBoolean;
 
 /**
@@ -31,13 +32,20 @@ public abstract class SurfaceCapture {
     /**
      * Called once before the capture starts.
      */
-    public abstract void init();
+    public abstract void init() throws IOException;
 
     /**
      * Called after the capture ends (if and only if {@link #init()} has been called).
      */
     public abstract void release();
 
+    /**
+     * Start the capture to the target surface.
+     *
+     * @param surface the surface which will be encoded
+     */
+    public abstract void start(Surface surface) throws IOException;
+
     /**
      * Return the video size
      *
@@ -51,11 +59,4 @@ public abstract class SurfaceCapture {
      * @param size Maximum size
      */
     public abstract void setMaxSize(int size);
-
-    /**
-     * Set the target surface.
-     *
-     * @param surface the surface which will be encoded
-     */
-    public abstract void setSurface(Surface surface);
 }

server/src/main/java/com/genymobile/scrcpy/SurfaceEncoder.java

@@ -1,13 +1,8 @@
 package com.genymobile.scrcpy;
 
-import com.genymobile.scrcpy.wrappers.SurfaceControl;
-
-import android.graphics.Rect;
 import android.media.MediaCodec;
 import android.media.MediaCodecInfo;
 import android.media.MediaFormat;
-import android.os.Build;
-import android.os.IBinder;
 import android.os.Looper;
 import android.os.SystemClock;
 import android.view.Surface;
@@ -74,7 +69,7 @@ public class SurfaceEncoder implements AsyncProcessor {
                     mediaCodec.configure(format, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE);
                     surface = mediaCodec.createInputSurface();
 
-                    capture.setSurface(surface);
+                    capture.start(surface);
 
                     mediaCodec.start();
 
@@ -238,25 +233,6 @@ public class SurfaceEncoder implements AsyncProcessor {
         return format;
     }
 
-    private static IBinder createDisplay() {
-        // Since Android 12 (preview), secure displays could not be created with shell permissions anymore.
-        // On Android 12 preview, SDK_INT is still R (not S), but CODENAME is "S".
-        boolean secure = Build.VERSION.SDK_INT < Build.VERSION_CODES.R || (Build.VERSION.SDK_INT == Build.VERSION_CODES.R && !"S".equals(
-                Build.VERSION.CODENAME));
-        return SurfaceControl.createDisplay("scrcpy", secure);
-    }
-
-    private static void setDisplaySurface(IBinder display, Surface surface, int orientation, Rect deviceRect, Rect displayRect, int layerStack) {
-        SurfaceControl.openTransaction();
-        try {
-            SurfaceControl.setDisplaySurface(display, surface);
-            SurfaceControl.setDisplayProjection(display, orientation, deviceRect, displayRect);
-            SurfaceControl.setDisplayLayerStack(display, layerStack);
-        } finally {
-            SurfaceControl.closeTransaction();
-        }
-    }
-
     @Override
     public void start(TerminationListener listener) {
         thread = new Thread(() -> {

server/src/main/java/com/genymobile/scrcpy/Workarounds.java

@@ -28,14 +28,13 @@ public final class Workarounds {
         // not instantiable
     }
 
-    public static void apply(boolean audio) {
+    public static void apply(boolean audio, boolean camera) {
         Workarounds.prepareMainLooper();
 
         boolean mustFillAppInfo = false;
-        boolean mustFillBaseContext = false;
+        boolean mustFillBaseContext = true;
         boolean mustFillAppContext = false;
 
-
         if (Build.BRAND.equalsIgnoreCase("meizu")) {
             // Workarounds must be applied for Meizu phones:
             //  - <https://github.com/Genymobile/scrcpy/issues/240>
@@ -65,6 +64,10 @@ public final class Workarounds {
             mustFillAppContext = true;
         }
 
+        if (camera) {
+            mustFillAppInfo = true;
+        }
+
         if (mustFillAppInfo) {
             Workarounds.fillAppInfo();
         }
@@ -154,7 +157,7 @@ public final class Workarounds {
         }
     }
 
-    public static void fillBaseContext() {
+    private static void fillBaseContext() {
         try {
             fillActivityThread();
 

server/src/main/java/com/genymobile/scrcpy/wrappers/ActivityManager.java

@@ -17,7 +17,7 @@ import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 
 @SuppressLint("PrivateApi,DiscouragedPrivateApi")
-public class ActivityManager {
+public final class ActivityManager {
 
     private final IInterface manager;
     private Method getContentProviderExternalMethod;

server/src/main/java/com/genymobile/scrcpy/wrappers/ClipboardManager.java

@@ -11,7 +11,7 @@ import android.os.IInterface;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 
-public class ClipboardManager {
+public final class ClipboardManager {
     private final IInterface manager;
     private Method getPrimaryClipMethod;
     private Method setPrimaryClipMethod;

server/src/main/java/com/genymobile/scrcpy/wrappers/ContentProvider.java

@@ -14,7 +14,7 @@ import java.io.Closeable;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 
-public class ContentProvider implements Closeable {
+public final class ContentProvider implements Closeable {
 
     public static final String TABLE_SYSTEM = "system";
     public static final String TABLE_SECURE = "secure";

server/src/main/java/com/genymobile/scrcpy/wrappers/ServiceManager.java

@@ -1,9 +1,15 @@
 package com.genymobile.scrcpy.wrappers;
 
+import com.genymobile.scrcpy.FakeContext;
+import com.genymobile.scrcpy.Workarounds;
+
 import android.annotation.SuppressLint;
+import android.content.Context;
+import android.hardware.camera2.CameraManager;
 import android.os.IBinder;
 import android.os.IInterface;
 
+import java.lang.reflect.Constructor;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 
@@ -26,6 +32,7 @@ public final class ServiceManager {
     private static StatusBarManager statusBarManager;
     private static ClipboardManager clipboardManager;
     private static ActivityManager activityManager;
+    private static CameraManager cameraManager;
 
     private ServiceManager() {
         /* not instantiable */
@@ -129,4 +136,16 @@ public final class ServiceManager {
 
         return activityManager;
     }
+
+    public static CameraManager getCameraManager() {
+        if (cameraManager == null) {
+            try {
+                Constructor<CameraManager> ctor = CameraManager.class.getDeclaredConstructor(Context.class);
+                cameraManager = ctor.newInstance(FakeContext.get());
+            } catch (Exception e) {
+                throw new AssertionError(e);
+            }
+        }
+        return cameraManager;
+    }
 }

server/src/main/java/com/genymobile/scrcpy/wrappers/StatusBarManager.java

@@ -7,7 +7,7 @@ import android.os.IInterface;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 
-public class StatusBarManager {
+public final class StatusBarManager {
 
     private final IInterface manager;
     private Method expandNotificationsPanelMethod;