Move virtual camera service to frameworks/av/services
Bug: 311647154
Bug: 301023410
Test: atest virtual_camera_tests
Test: build & flash & adb shell cmd virtual_camera help
Change-Id: I6d43a2b70f454c9c01ec2abcae9f138cd78c6a85
diff --git a/services/camera/virtualcamera/VirtualCameraSession.h b/services/camera/virtualcamera/VirtualCameraSession.h
new file mode 100644
index 0000000..440720e
--- /dev/null
+++ b/services/camera/virtualcamera/VirtualCameraSession.h
@@ -0,0 +1,147 @@
+/*
+ * Copyright (C) 2023 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.
+ */
+
+#ifndef ANDROID_COMPANION_VIRTUALCAMERA_VIRTUALCAMERASESSION_H
+#define ANDROID_COMPANION_VIRTUALCAMERA_VIRTUALCAMERASESSION_H
+
+#include <memory>
+#include <set>
+
+#include "VirtualCameraRenderThread.h"
+#include "VirtualCameraSessionContext.h"
+#include "aidl/android/companion/virtualcamera/IVirtualCameraCallback.h"
+#include "aidl/android/hardware/camera/device/BnCameraDeviceSession.h"
+#include "aidl/android/hardware/camera/device/ICameraDeviceCallback.h"
+#include "utils/Mutex.h"
+
+namespace android {
+
+template <typename T, typename U>
+struct AidlMessageQueue;
+namespace companion {
+namespace virtualcamera {
+
+// Implementation of ICameraDeviceSession AIDL interface to allow camera
+// framework to read image data from open virtual camera device. This class
+// encapsulates possibly several image streams for the same session.
+class VirtualCameraSession
+ : public ::aidl::android::hardware::camera::device::BnCameraDeviceSession {
+ public:
+ // Construct new virtual camera session.
+ // When virtualCameraClientCallback is null, the input surface will be filled
+ // with test pattern.
+ VirtualCameraSession(
+ const std::string& cameraId,
+ std::shared_ptr<
+ ::aidl::android::hardware::camera::device::ICameraDeviceCallback>
+ cameraDeviceCallback,
+ std::shared_ptr<
+ ::aidl::android::companion::virtualcamera::IVirtualCameraCallback>
+ virtualCameraClientCallback = nullptr);
+
+ virtual ~VirtualCameraSession() override = default;
+
+ ndk::ScopedAStatus close() override;
+
+ ndk::ScopedAStatus configureStreams(
+ const ::aidl::android::hardware::camera::device::StreamConfiguration&
+ in_requestedConfiguration,
+ std::vector<::aidl::android::hardware::camera::device::HalStream>*
+ _aidl_return) override EXCLUDES(mLock);
+
+ ndk::ScopedAStatus constructDefaultRequestSettings(
+ ::aidl::android::hardware::camera::device::RequestTemplate in_type,
+ ::aidl::android::hardware::camera::device::CameraMetadata* _aidl_return)
+ override;
+
+ ndk::ScopedAStatus flush() override EXCLUDES(mLock);
+
+ ndk::ScopedAStatus getCaptureRequestMetadataQueue(
+ ::aidl::android::hardware::common::fmq::MQDescriptor<
+ int8_t, ::aidl::android::hardware::common::fmq::SynchronizedReadWrite>*
+ _aidl_return) override;
+
+ ndk::ScopedAStatus getCaptureResultMetadataQueue(
+ ::aidl::android::hardware::common::fmq::MQDescriptor<
+ int8_t, ::aidl::android::hardware::common::fmq::SynchronizedReadWrite>*
+ _aidl_return) override;
+
+ ndk::ScopedAStatus isReconfigurationRequired(
+ const ::aidl::android::hardware::camera::device::CameraMetadata&
+ in_oldSessionParams,
+ const ::aidl::android::hardware::camera::device::CameraMetadata&
+ in_newSessionParams,
+ bool* _aidl_return) override;
+
+ ndk::ScopedAStatus processCaptureRequest(
+ const std::vector<::aidl::android::hardware::camera::device::CaptureRequest>&
+ in_requests,
+ const std::vector<::aidl::android::hardware::camera::device::BufferCache>&
+ in_cachesToRemove,
+ int32_t* _aidl_return) override;
+
+ ndk::ScopedAStatus signalStreamFlush(const std::vector<int32_t>& in_streamIds,
+ int32_t in_streamConfigCounter) override;
+
+ ndk::ScopedAStatus switchToOffline(
+ const std::vector<int32_t>& in_streamsToKeep,
+ ::aidl::android::hardware::camera::device::CameraOfflineSessionInfo*
+ out_offlineSessionInfo,
+ std::shared_ptr<
+ ::aidl::android::hardware::camera::device::ICameraOfflineSession>*
+ _aidl_return) override;
+
+ ndk::ScopedAStatus repeatingRequestEnd(
+ int32_t in_frameNumber, const std::vector<int32_t>& in_streamIds) override;
+
+ std::set<int> getStreamIds() const EXCLUDES(mLock);
+
+ private:
+ ndk::ScopedAStatus processCaptureRequest(
+ const ::aidl::android::hardware::camera::device::CaptureRequest& request)
+ EXCLUDES(mLock);
+
+ const std::string mCameraId;
+
+ mutable std::mutex mLock;
+
+ std::shared_ptr<::aidl::android::hardware::camera::device::ICameraDeviceCallback>
+ mCameraDeviceCallback GUARDED_BY(mLock);
+
+ const std::shared_ptr<
+ ::aidl::android::companion::virtualcamera::IVirtualCameraCallback>
+ mVirtualCameraClientCallback;
+
+ VirtualCameraSessionContext mSessionContext;
+
+ using RequestMetadataQueue = AidlMessageQueue<
+ int8_t, ::aidl::android::hardware::common::fmq::SynchronizedReadWrite>;
+ std::unique_ptr<RequestMetadataQueue> mRequestMetadataQueue;
+
+ using ResultMetadataQueue = AidlMessageQueue<
+ int8_t, ::aidl::android::hardware::common::fmq::SynchronizedReadWrite>;
+ std::shared_ptr<ResultMetadataQueue> mResultMetadataQueue;
+
+ std::atomic_bool mFirstRequest{true};
+
+ std::unique_ptr<VirtualCameraRenderThread> mRenderThread GUARDED_BY(mLock);
+};
+
+} // namespace virtualcamera
+} // namespace companion
+} // namespace android
+
+#endif // ANDROID_SERVICES_VIRTUAL_CAMERA_VIRTUALCAMERASESSION_H