1 /* 2 * Copyright 2023 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_COMPANION_VIRTUALCAMERA_VIRTUALCAMERAPROVIDER_H 18 #define ANDROID_COMPANION_VIRTUALCAMERA_VIRTUALCAMERAPROVIDER_H 19 20 #include <atomic> 21 #include <map> 22 #include <memory> 23 #include <mutex> 24 25 #include "VirtualCameraDevice.h" 26 #include "aidl/android/companion/virtualcamera/BnVirtualCameraCallback.h" 27 #include "aidl/android/hardware/camera/common/VendorTagSection.h" 28 #include "aidl/android/hardware/camera/device/ICameraDevice.h" 29 #include "aidl/android/hardware/camera/provider/BnCameraProvider.h" 30 #include "aidl/android/hardware/camera/provider/CameraIdAndStreamCombination.h" 31 #include "aidl/android/hardware/camera/provider/ConcurrentCameraIdCombination.h" 32 #include "aidl/android/hardware/camera/provider/ICameraProviderCallback.h" 33 #include "utils/Mutex.h" 34 35 namespace android { 36 namespace companion { 37 namespace virtualcamera { 38 39 // Entry point for virtual camera HAL. 40 // Allows to create and keep track of virtual camera and implements 41 // IAudioProvider AIDL interface to expose virtual camera devices to camera framework. 42 class VirtualCameraProvider 43 : public ::aidl::android::hardware::camera::provider::BnCameraProvider { 44 public: 45 ~VirtualCameraProvider() override = default; 46 47 ndk::ScopedAStatus setCallback( 48 const std::shared_ptr< 49 ::aidl::android::hardware::camera::provider::ICameraProviderCallback>& 50 in_callback) override; 51 52 ndk::ScopedAStatus getVendorTags( 53 std::vector<::aidl::android::hardware::camera::common::VendorTagSection>* 54 _aidl_return) override; 55 56 ndk::ScopedAStatus getCameraIdList( 57 std::vector<std::string>* _aidl_return) override; 58 59 ndk::ScopedAStatus getCameraDeviceInterface( 60 const std::string& in_cameraDeviceName, 61 std::shared_ptr<::aidl::android::hardware::camera::device::ICameraDevice>* 62 _aidl_return) override; 63 64 ndk::ScopedAStatus notifyDeviceStateChange(int64_t in_deviceState) override; 65 66 ndk::ScopedAStatus getConcurrentCameraIds( 67 std::vector<::aidl::android::hardware::camera::provider:: 68 ConcurrentCameraIdCombination>* _aidl_return) override; 69 70 ndk::ScopedAStatus isConcurrentStreamCombinationSupported( 71 const std::vector<::aidl::android::hardware::camera::provider:: 72 CameraIdAndStreamCombination>& in_configs, 73 bool* _aidl_return) override; 74 75 // Create new virtual camera devices 76 // Returns nullptr if creation was not successful. 77 std::shared_ptr<VirtualCameraDevice> createCamera( 78 const aidl::android::companion::virtualcamera::VirtualCameraConfiguration& 79 configuration, 80 const std::string& cameraId, int32_t deviceId); 81 82 std::shared_ptr<VirtualCameraDevice> getCamera(const std::string& name); 83 84 bool removeCamera(const std::string& name); 85 86 private: 87 std::mutex mLock; 88 89 std::shared_ptr< 90 ::aidl::android::hardware::camera::provider::ICameraProviderCallback> 91 mCameraProviderCallback GUARDED_BY(mLock); 92 93 std::map<std::string, std::shared_ptr<VirtualCameraDevice>> mCameras 94 GUARDED_BY(mLock); 95 }; 96 97 } // namespace virtualcamera 98 } // namespace companion 99 } // namespace android 100 101 #endif // ANDROID_COMPANION_VIRTUALCAMERA_VIRTUALCAMERAPROVIDER_H 102