Add EVS Video Emulated Camera Class
Test: Build
Bug: 277861838
Change-Id: Ic9ce648b857eddefccc24065397af5b2056426c7
diff --git a/automotive/evs/aidl/impl/default/include/EvsAllCameras.h b/automotive/evs/aidl/impl/default/include/EvsAllCameras.h
new file mode 100644
index 0000000..a76501d
--- /dev/null
+++ b/automotive/evs/aidl/impl/default/include/EvsAllCameras.h
@@ -0,0 +1,20 @@
+/*
+ * 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.
+ */
+
+#pragma once
+
+#include "EvsMockCamera.h"
+#include "EvsVideoEmulatedCamera.h"
diff --git a/automotive/evs/aidl/impl/default/include/EvsVideoEmulatedCamera.h b/automotive/evs/aidl/impl/default/include/EvsVideoEmulatedCamera.h
new file mode 100644
index 0000000..356a42a
--- /dev/null
+++ b/automotive/evs/aidl/impl/default/include/EvsVideoEmulatedCamera.h
@@ -0,0 +1,108 @@
+/*
+ * 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.
+ */
+
+#pragma once
+
+#include "ConfigManager.h"
+#include "EvsCamera.h"
+
+#include <aidl/android/hardware/automotive/evs/BufferDesc.h>
+#include <aidl/android/hardware/automotive/evs/CameraDesc.h>
+#include <aidl/android/hardware/automotive/evs/CameraParam.h>
+#include <aidl/android/hardware/automotive/evs/IEvsCameraStream.h>
+#include <aidl/android/hardware/automotive/evs/IEvsDisplay.h>
+#include <aidl/android/hardware/automotive/evs/ParameterRange.h>
+#include <aidl/android/hardware/automotive/evs/Stream.h>
+
+#include <cstdint>
+#include <memory>
+#include <unordered_map>
+#include <vector>
+
+namespace aidl::android::hardware::automotive::evs::implementation {
+
+class EvsVideoEmulatedCamera : public EvsCamera {
+ public:
+ EvsVideoEmulatedCamera(Sigil sigil, const char* deviceName,
+ std::unique_ptr<ConfigManager::CameraInfo>& camInfo);
+
+ ~EvsVideoEmulatedCamera() override;
+
+ // Methods from ::android::hardware::automotive::evs::IEvsCamera follow.
+ ndk::ScopedAStatus forcePrimaryClient(
+ const std::shared_ptr<evs::IEvsDisplay>& display) override;
+ ndk::ScopedAStatus getCameraInfo(evs::CameraDesc* _aidl_return) override;
+ ndk::ScopedAStatus getExtendedInfo(int32_t opaqueIdentifier,
+ std::vector<uint8_t>* value) override;
+ ndk::ScopedAStatus getIntParameter(evs::CameraParam id, std::vector<int32_t>* value) override;
+ ndk::ScopedAStatus getIntParameterRange(evs::CameraParam id,
+ evs::ParameterRange* _aidl_return) override;
+ ndk::ScopedAStatus getParameterList(std::vector<evs::CameraParam>* _aidl_return) override;
+ ndk::ScopedAStatus getPhysicalCameraInfo(const std::string& deviceId,
+ evs::CameraDesc* _aidl_return) override;
+ ndk::ScopedAStatus setExtendedInfo(int32_t opaqueIdentifier,
+ const std::vector<uint8_t>& opaqueValue) override;
+ ndk::ScopedAStatus setIntParameter(evs::CameraParam id, int32_t value,
+ std::vector<int32_t>* effectiveValue) override;
+ ndk::ScopedAStatus setPrimaryClient() override;
+ ndk::ScopedAStatus unsetPrimaryClient() override;
+
+ const evs::CameraDesc& getDesc() { return mDescription; }
+
+ static std::shared_ptr<EvsVideoEmulatedCamera> Create(const char* deviceName);
+ static std::shared_ptr<EvsVideoEmulatedCamera> Create(
+ const char* deviceName, std::unique_ptr<ConfigManager::CameraInfo>& camInfo,
+ const evs::Stream* streamCfg = nullptr);
+
+ private:
+ // For the camera parameters.
+ struct CameraParameterDesc {
+ CameraParameterDesc(int min = 0, int max = 0, int step = 0, int value = 0) {
+ this->range.min = min;
+ this->range.max = max;
+ this->range.step = step;
+ this->value = value;
+ }
+
+ ParameterRange range;
+ int32_t value;
+ };
+
+ void initializeParameters();
+
+ ::android::status_t allocateOneFrame(buffer_handle_t* handle) override;
+
+ bool startVideoStreamImpl_locked(const std::shared_ptr<evs::IEvsCameraStream>& receiver,
+ ndk::ScopedAStatus& status,
+ std::unique_lock<std::mutex>& lck) override;
+
+ bool stopVideoStreamImpl_locked(ndk::ScopedAStatus& status,
+ std::unique_lock<std::mutex>& lck) override;
+
+ // The properties of this camera.
+ CameraDesc mDescription = {};
+
+ // Camera parameters.
+ std::unordered_map<CameraParam, std::shared_ptr<CameraParameterDesc>> mParams;
+
+ // Static camera module information
+ std::unique_ptr<ConfigManager::CameraInfo>& mCameraInfo;
+
+ // For the extended info
+ std::unordered_map<uint32_t, std::vector<uint8_t>> mExtInfo;
+};
+
+} // namespace aidl::android::hardware::automotive::evs::implementation
diff --git a/automotive/evs/aidl/impl/default/src/EvsEnumerator.cpp b/automotive/evs/aidl/impl/default/src/EvsEnumerator.cpp
index ec4b18f..80e72a7 100644
--- a/automotive/evs/aidl/impl/default/src/EvsEnumerator.cpp
+++ b/automotive/evs/aidl/impl/default/src/EvsEnumerator.cpp
@@ -17,9 +17,9 @@
#include "EvsEnumerator.h"
#include "ConfigManager.h"
+#include "EvsAllCameras.h"
#include "EvsCameraBase.h"
#include "EvsGlDisplay.h"
-#include "EvsMockCamera.h"
#include <aidl/android/hardware/automotive/evs/EvsResult.h>
#include <aidl/android/hardware/graphics/common/BufferUsage.h>
@@ -264,6 +264,10 @@
pActiveCamera = EvsMockCamera::Create(id.data(), cameraInfo, &cfg);
break;
+ case DeviceType::VIDEO:
+ pActiveCamera = EvsVideoEmulatedCamera::Create(id.data(), cameraInfo, &cfg);
+ break;
+
default:
LOG(ERROR) << __func__ << ": camera device type "
<< static_cast<std::int32_t>(cameraInfo->deviceType)
diff --git a/automotive/evs/aidl/impl/default/src/EvsVideoEmulatedCamera.cpp b/automotive/evs/aidl/impl/default/src/EvsVideoEmulatedCamera.cpp
new file mode 100644
index 0000000..f198a64
--- /dev/null
+++ b/automotive/evs/aidl/impl/default/src/EvsVideoEmulatedCamera.cpp
@@ -0,0 +1,198 @@
+/*
+ * 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.
+ */
+
+#include "EvsVideoEmulatedCamera.h"
+
+#include <aidl/android/hardware/automotive/evs/EvsResult.h>
+
+#include <android-base/logging.h>
+
+#include <cstddef>
+#include <cstdint>
+
+namespace aidl::android::hardware::automotive::evs::implementation {
+
+EvsVideoEmulatedCamera::EvsVideoEmulatedCamera(Sigil, const char* deviceName,
+ std::unique_ptr<ConfigManager::CameraInfo>& camInfo)
+ : mCameraInfo(camInfo) {
+ mDescription.id = deviceName;
+
+ /* set camera metadata */
+ if (camInfo) {
+ uint8_t* ptr = reinterpret_cast<uint8_t*>(camInfo->characteristics);
+ const size_t len = get_camera_metadata_size(camInfo->characteristics);
+ mDescription.metadata.insert(mDescription.metadata.end(), ptr, ptr + len);
+ }
+
+ initializeParameters();
+}
+
+void EvsVideoEmulatedCamera::initializeParameters() {
+ mParams.emplace(
+ CameraParam::BRIGHTNESS,
+ new CameraParameterDesc(/* min= */ 0, /* max= */ 255, /* step= */ 1, /* value= */ 255));
+ mParams.emplace(
+ CameraParam::CONTRAST,
+ new CameraParameterDesc(/* min= */ 0, /* max= */ 255, /* step= */ 1, /* value= */ 255));
+ mParams.emplace(
+ CameraParam::SHARPNESS,
+ new CameraParameterDesc(/* min= */ 0, /* max= */ 255, /* step= */ 1, /* value= */ 255));
+}
+
+::android::status_t EvsVideoEmulatedCamera::allocateOneFrame(buffer_handle_t* /* handle */) {
+ LOG(FATAL) << __func__ << ": Not implemented yet.";
+ return ::android::UNKNOWN_ERROR;
+}
+
+bool EvsVideoEmulatedCamera::startVideoStreamImpl_locked(
+ const std::shared_ptr<evs::IEvsCameraStream>& /* receiver */,
+ ndk::ScopedAStatus& /* status */, std::unique_lock<std::mutex>& /* lck */) {
+ LOG(FATAL) << __func__ << ": Not implemented yet.";
+ return false;
+}
+
+bool EvsVideoEmulatedCamera::stopVideoStreamImpl_locked(ndk::ScopedAStatus& /* status */,
+ std::unique_lock<std::mutex>& /* lck */) {
+ LOG(FATAL) << __func__ << ": Not implemented yet.";
+ return false;
+}
+
+ndk::ScopedAStatus EvsVideoEmulatedCamera::forcePrimaryClient(
+ const std::shared_ptr<evs::IEvsDisplay>& /* display */) {
+ /* Because EVS HW module reference implementation expects a single client at
+ * a time, this returns a success code always.
+ */
+ return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus EvsVideoEmulatedCamera::getCameraInfo(evs::CameraDesc* _aidl_return) {
+ *_aidl_return = mDescription;
+ return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus EvsVideoEmulatedCamera::getExtendedInfo(int32_t opaqueIdentifier,
+ std::vector<uint8_t>* value) {
+ const auto it = mExtInfo.find(opaqueIdentifier);
+ if (it == mExtInfo.end()) {
+ return ndk::ScopedAStatus::fromServiceSpecificError(
+ static_cast<int>(EvsResult::INVALID_ARG));
+ } else {
+ *value = mExtInfo[opaqueIdentifier];
+ }
+ return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus EvsVideoEmulatedCamera::getIntParameter(evs::CameraParam id,
+ std::vector<int32_t>* value) {
+ const auto it = mParams.find(id);
+ if (it == mParams.end()) {
+ return ndk::ScopedAStatus::fromServiceSpecificError(
+ static_cast<int>(EvsResult::NOT_SUPPORTED));
+ }
+ value->push_back(it->second->value);
+ return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus EvsVideoEmulatedCamera::getIntParameterRange(evs::CameraParam id,
+ evs::ParameterRange* _aidl_return) {
+ const auto it = mParams.find(id);
+ if (it == mParams.end()) {
+ return ndk::ScopedAStatus::fromServiceSpecificError(
+ static_cast<int>(EvsResult::NOT_SUPPORTED));
+ }
+ _aidl_return->min = it->second->range.min;
+ _aidl_return->max = it->second->range.max;
+ _aidl_return->step = it->second->range.step;
+ return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus EvsVideoEmulatedCamera::getParameterList(
+ std::vector<evs::CameraParam>* _aidl_return) {
+ if (mCameraInfo) {
+ _aidl_return->resize(mCameraInfo->controls.size());
+ std::size_t idx = 0;
+ for (const auto& [name, range] : mCameraInfo->controls) {
+ (*_aidl_return)[idx++] = name;
+ }
+ }
+ return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus EvsVideoEmulatedCamera::getPhysicalCameraInfo(const std::string& /* deviceId */,
+ evs::CameraDesc* _aidl_return) {
+ return getCameraInfo(_aidl_return);
+}
+
+ndk::ScopedAStatus EvsVideoEmulatedCamera::setExtendedInfo(
+ int32_t opaqueIdentifier, const std::vector<uint8_t>& opaqueValue) {
+ mExtInfo.insert_or_assign(opaqueIdentifier, opaqueValue);
+ return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus EvsVideoEmulatedCamera::setIntParameter(evs::CameraParam id, int32_t value,
+ std::vector<int32_t>* effectiveValue) {
+ const auto it = mParams.find(id);
+ if (it == mParams.end()) {
+ return ndk::ScopedAStatus::fromServiceSpecificError(
+ static_cast<int>(EvsResult::NOT_SUPPORTED));
+ }
+ // Rounding down to the closest value.
+ int32_t candidate = value / it->second->range.step * it->second->range.step;
+ if (candidate < it->second->range.min || candidate > it->second->range.max) {
+ return ndk::ScopedAStatus::fromServiceSpecificError(
+ static_cast<int>(EvsResult::INVALID_ARG));
+ }
+ it->second->value = candidate;
+ effectiveValue->push_back(candidate);
+ return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus EvsVideoEmulatedCamera::setPrimaryClient() {
+ /* Because EVS HW module reference implementation expects a single client at
+ * a time, this returns a success code always.
+ */
+ return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus EvsVideoEmulatedCamera::unsetPrimaryClient() {
+ /* Because EVS HW module reference implementation expects a single client at
+ * a time, there is no chance that this is called by the secondary client and
+ * therefore returns a success code always.
+ */
+ return ndk::ScopedAStatus::ok();
+}
+
+std::shared_ptr<EvsVideoEmulatedCamera> EvsVideoEmulatedCamera::Create(const char* deviceName) {
+ std::unique_ptr<ConfigManager::CameraInfo> nullCamInfo = nullptr;
+ return Create(deviceName, nullCamInfo);
+}
+
+std::shared_ptr<EvsVideoEmulatedCamera> EvsVideoEmulatedCamera::Create(
+ const char* deviceName, std::unique_ptr<ConfigManager::CameraInfo>& camInfo,
+ const evs::Stream* /* streamCfg */) {
+ std::shared_ptr<EvsVideoEmulatedCamera> c =
+ ndk::SharedRefBase::make<EvsVideoEmulatedCamera>(Sigil{}, deviceName, camInfo);
+ if (!c) {
+ LOG(ERROR) << "Failed to instantiate EvsVideoEmulatedCamera.";
+ return nullptr;
+ }
+ c->mDescription.vendorFlags = 0xFFFFFFFF; // Arbitrary test value
+ return c;
+}
+
+EvsVideoEmulatedCamera::~EvsVideoEmulatedCamera() {}
+
+} // namespace aidl::android::hardware::automotive::evs::implementation