| /* |
| ** |
| ** Copyright 2008, 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. |
| */ |
| |
| //#define LOG_NDEBUG 0 |
| #define LOG_TAG "ICameraClient" |
| #include <utils/Log.h> |
| #include <stdint.h> |
| #include <sys/types.h> |
| #include <camera/CameraUtils.h> |
| #include <android/hardware/ICameraClient.h> |
| #include <media/hardware/HardwareAPI.h> |
| |
| namespace android { |
| namespace hardware { |
| |
| enum { |
| NOTIFY_CALLBACK = IBinder::FIRST_CALL_TRANSACTION, |
| DATA_CALLBACK, |
| DATA_CALLBACK_TIMESTAMP, |
| RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP, |
| RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP_BATCH, |
| }; |
| |
| class BpCameraClient: public BpInterface<ICameraClient> |
| { |
| public: |
| explicit BpCameraClient(const sp<IBinder>& impl) |
| : BpInterface<ICameraClient>(impl) |
| { |
| } |
| |
| // generic callback from camera service to app |
| void notifyCallback(int32_t msgType, int32_t ext1, int32_t ext2) |
| { |
| ALOGV("notifyCallback"); |
| Parcel data, reply; |
| data.writeInterfaceToken(ICameraClient::getInterfaceDescriptor()); |
| data.writeInt32(msgType); |
| data.writeInt32(ext1); |
| data.writeInt32(ext2); |
| remote()->transact(NOTIFY_CALLBACK, data, &reply, IBinder::FLAG_ONEWAY); |
| } |
| |
| // generic data callback from camera service to app with image data |
| void dataCallback(int32_t msgType, const sp<IMemory>& imageData, |
| camera_frame_metadata_t *metadata) |
| { |
| ALOGV("dataCallback"); |
| Parcel data, reply; |
| data.writeInterfaceToken(ICameraClient::getInterfaceDescriptor()); |
| data.writeInt32(msgType); |
| data.writeStrongBinder(IInterface::asBinder(imageData)); |
| if (metadata) { |
| data.writeInt32(metadata->number_of_faces); |
| data.write(metadata->faces, sizeof(camera_face_t) * metadata->number_of_faces); |
| } |
| remote()->transact(DATA_CALLBACK, data, &reply, IBinder::FLAG_ONEWAY); |
| } |
| |
| // generic data callback from camera service to app with image data |
| void dataCallbackTimestamp(nsecs_t timestamp, int32_t msgType, const sp<IMemory>& imageData) |
| { |
| ALOGV("dataCallback"); |
| Parcel data, reply; |
| data.writeInterfaceToken(ICameraClient::getInterfaceDescriptor()); |
| data.writeInt64(timestamp); |
| data.writeInt32(msgType); |
| data.writeStrongBinder(IInterface::asBinder(imageData)); |
| remote()->transact(DATA_CALLBACK_TIMESTAMP, data, &reply, IBinder::FLAG_ONEWAY); |
| } |
| |
| void recordingFrameHandleCallbackTimestamp(nsecs_t timestamp, native_handle_t* handle) { |
| ALOGV("recordingFrameHandleCallbackTimestamp"); |
| Parcel data, reply; |
| data.writeInterfaceToken(ICameraClient::getInterfaceDescriptor()); |
| data.writeInt64(timestamp); |
| data.writeNativeHandle(handle); |
| remote()->transact(RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP, data, &reply, |
| IBinder::FLAG_ONEWAY); |
| } |
| |
| void recordingFrameHandleCallbackTimestampBatch( |
| const std::vector<nsecs_t>& timestamps, |
| const std::vector<native_handle_t*>& handles) { |
| ALOGV("recordingFrameHandleCallbackTimestampBatch"); |
| Parcel data, reply; |
| data.writeInterfaceToken(ICameraClient::getInterfaceDescriptor()); |
| uint32_t n = timestamps.size(); |
| if (n != handles.size()) { |
| ALOGE("%s: size of timestamps(%zu) and handles(%zu) mismatch!", |
| __FUNCTION__, timestamps.size(), handles.size()); |
| return; |
| } |
| data.writeUint32(n); |
| for (auto ts : timestamps) { |
| data.writeInt64(ts); |
| } |
| for (auto& handle : handles) { |
| data.writeNativeHandle(handle); |
| } |
| remote()->transact(RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP_BATCH, data, &reply, |
| IBinder::FLAG_ONEWAY); |
| } |
| }; |
| |
| IMPLEMENT_META_INTERFACE(CameraClient, "android.hardware.ICameraClient"); |
| |
| // ---------------------------------------------------------------------- |
| |
| status_t BnCameraClient::onTransact( |
| uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) |
| { |
| switch(code) { |
| case NOTIFY_CALLBACK: { |
| ALOGV("NOTIFY_CALLBACK"); |
| CHECK_INTERFACE(ICameraClient, data, reply); |
| int32_t msgType = data.readInt32(); |
| int32_t ext1 = data.readInt32(); |
| int32_t ext2 = data.readInt32(); |
| notifyCallback(msgType, ext1, ext2); |
| return NO_ERROR; |
| } break; |
| case DATA_CALLBACK: { |
| ALOGV("DATA_CALLBACK"); |
| CHECK_INTERFACE(ICameraClient, data, reply); |
| int32_t msgType = data.readInt32(); |
| sp<IMemory> imageData = interface_cast<IMemory>(data.readStrongBinder()); |
| camera_frame_metadata_t *metadata = NULL; |
| if (data.dataAvail() > 0) { |
| metadata = new camera_frame_metadata_t; |
| metadata->number_of_faces = data.readInt32(); |
| metadata->faces = (camera_face_t *) data.readInplace( |
| sizeof(camera_face_t) * metadata->number_of_faces); |
| } |
| dataCallback(msgType, imageData, metadata); |
| if (metadata) delete metadata; |
| return NO_ERROR; |
| } break; |
| case DATA_CALLBACK_TIMESTAMP: { |
| ALOGV("DATA_CALLBACK_TIMESTAMP"); |
| CHECK_INTERFACE(ICameraClient, data, reply); |
| nsecs_t timestamp = data.readInt64(); |
| int32_t msgType = data.readInt32(); |
| sp<IMemory> imageData = interface_cast<IMemory>(data.readStrongBinder()); |
| dataCallbackTimestamp(timestamp, msgType, imageData); |
| return NO_ERROR; |
| } break; |
| case RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP: { |
| ALOGV("RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP"); |
| CHECK_INTERFACE(ICameraClient, data, reply); |
| nsecs_t timestamp; |
| status_t res = data.readInt64(×tamp); |
| if (res != OK) { |
| ALOGE("%s: Failed to read timestamp: %s (%d)", __FUNCTION__, strerror(-res), res); |
| return BAD_VALUE; |
| } |
| native_handle_t* handle = data.readNativeHandle(); |
| if (handle == nullptr) { |
| ALOGE("%s: Received a null native handle", __FUNCTION__); |
| return BAD_VALUE; |
| } |
| |
| // The native handle will be freed in BpCamera::releaseRecordingFrameHandle. |
| recordingFrameHandleCallbackTimestamp(timestamp, handle); |
| return NO_ERROR; |
| } break; |
| case RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP_BATCH: { |
| ALOGV("RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP_BATCH"); |
| CHECK_INTERFACE(ICameraClient, data, reply); |
| uint32_t n = 0; |
| status_t res = data.readUint32(&n); |
| if (res != OK) { |
| ALOGE("%s: Failed to read batch size: %s (%d)", __FUNCTION__, strerror(-res), res); |
| return BAD_VALUE; |
| } |
| std::vector<nsecs_t> timestamps; |
| std::vector<native_handle_t*> handles; |
| timestamps.reserve(n); |
| handles.reserve(n); |
| for (uint32_t i = 0; i < n; i++) { |
| nsecs_t t; |
| res = data.readInt64(&t); |
| if (res != OK) { |
| ALOGE("%s: Failed to read timestamp[%d]: %s (%d)", |
| __FUNCTION__, i, strerror(-res), res); |
| return BAD_VALUE; |
| } |
| timestamps.push_back(t); |
| } |
| for (uint32_t i = 0; i < n; i++) { |
| native_handle_t* handle = data.readNativeHandle(); |
| if (handle == nullptr) { |
| ALOGE("%s: Received a null native handle at handles[%d]", |
| __FUNCTION__, i); |
| return BAD_VALUE; |
| } |
| handles.push_back(handle); |
| } |
| |
| // The native handle will be freed in BpCamera::releaseRecordingFrameHandleBatch. |
| recordingFrameHandleCallbackTimestampBatch(timestamps, handles); |
| return NO_ERROR; |
| } break; |
| default: |
| return BBinder::onTransact(code, data, reply, flags); |
| } |
| } |
| |
| // ---------------------------------------------------------------------------- |
| |
| } // namespace hardware |
| } // namespace android |
