231 lines
9.0 KiB
C++
231 lines
9.0 KiB
C++
/*
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**
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** Copyright 2008, The Android Open Source Project
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**
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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**
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** http://www.apache.org/licenses/LICENSE-2.0
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**
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*/
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//#define LOG_NDEBUG 0
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#define LOG_TAG "ICameraClient"
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#include <utils/Log.h>
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#include <stdint.h>
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#include <sys/types.h>
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#include <camera/CameraUtils.h>
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#include <android/hardware/ICameraClient.h>
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#include <media/hardware/HardwareAPI.h>
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namespace android {
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namespace hardware {
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enum {
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NOTIFY_CALLBACK = IBinder::FIRST_CALL_TRANSACTION,
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DATA_CALLBACK,
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DATA_CALLBACK_TIMESTAMP,
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RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP,
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RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP_BATCH,
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};
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class BpCameraClient: public BpInterface<ICameraClient>
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{
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public:
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explicit BpCameraClient(const sp<IBinder>& impl)
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: BpInterface<ICameraClient>(impl)
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{
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}
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// generic callback from camera service to app
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void notifyCallback(int32_t msgType, int32_t ext1, int32_t ext2)
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{
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ALOGV("notifyCallback");
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Parcel data, reply;
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data.writeInterfaceToken(ICameraClient::getInterfaceDescriptor());
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data.writeInt32(msgType);
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data.writeInt32(ext1);
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data.writeInt32(ext2);
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remote()->transact(NOTIFY_CALLBACK, data, &reply, IBinder::FLAG_ONEWAY);
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}
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// generic data callback from camera service to app with image data
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void dataCallback(int32_t msgType, const sp<IMemory>& imageData,
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camera_frame_metadata_t *metadata)
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{
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ALOGV("dataCallback");
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Parcel data, reply;
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data.writeInterfaceToken(ICameraClient::getInterfaceDescriptor());
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data.writeInt32(msgType);
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data.writeStrongBinder(IInterface::asBinder(imageData));
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if (metadata) {
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data.writeInt32(metadata->number_of_faces);
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data.write(metadata->faces, sizeof(camera_face_t) * metadata->number_of_faces);
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}
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remote()->transact(DATA_CALLBACK, data, &reply, IBinder::FLAG_ONEWAY);
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}
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// generic data callback from camera service to app with image data
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void dataCallbackTimestamp(nsecs_t timestamp, int32_t msgType, const sp<IMemory>& imageData)
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{
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ALOGV("dataCallback");
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Parcel data, reply;
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data.writeInterfaceToken(ICameraClient::getInterfaceDescriptor());
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data.writeInt64(timestamp);
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data.writeInt32(msgType);
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data.writeStrongBinder(IInterface::asBinder(imageData));
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remote()->transact(DATA_CALLBACK_TIMESTAMP, data, &reply, IBinder::FLAG_ONEWAY);
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}
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void recordingFrameHandleCallbackTimestamp(nsecs_t timestamp, native_handle_t* handle) {
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ALOGV("recordingFrameHandleCallbackTimestamp");
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Parcel data, reply;
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data.writeInterfaceToken(ICameraClient::getInterfaceDescriptor());
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data.writeInt64(timestamp);
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data.writeNativeHandle(handle);
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remote()->transact(RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP, data, &reply,
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IBinder::FLAG_ONEWAY);
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}
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void recordingFrameHandleCallbackTimestampBatch(
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const std::vector<nsecs_t>& timestamps,
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const std::vector<native_handle_t*>& handles) {
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ALOGV("recordingFrameHandleCallbackTimestampBatch");
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Parcel data, reply;
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data.writeInterfaceToken(ICameraClient::getInterfaceDescriptor());
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uint32_t n = timestamps.size();
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if (n != handles.size()) {
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ALOGE("%s: size of timestamps(%zu) and handles(%zu) mismatch!",
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__FUNCTION__, timestamps.size(), handles.size());
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return;
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}
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data.writeUint32(n);
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for (auto ts : timestamps) {
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data.writeInt64(ts);
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}
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for (auto& handle : handles) {
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data.writeNativeHandle(handle);
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}
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remote()->transact(RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP_BATCH, data, &reply,
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IBinder::FLAG_ONEWAY);
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}
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};
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IMPLEMENT_META_INTERFACE(CameraClient, "android.hardware.ICameraClient");
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// ----------------------------------------------------------------------
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status_t BnCameraClient::onTransact(
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uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
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{
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switch(code) {
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case NOTIFY_CALLBACK: {
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ALOGV("NOTIFY_CALLBACK");
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CHECK_INTERFACE(ICameraClient, data, reply);
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int32_t msgType = data.readInt32();
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int32_t ext1 = data.readInt32();
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int32_t ext2 = data.readInt32();
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notifyCallback(msgType, ext1, ext2);
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return NO_ERROR;
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} break;
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case DATA_CALLBACK: {
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ALOGV("DATA_CALLBACK");
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CHECK_INTERFACE(ICameraClient, data, reply);
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int32_t msgType = data.readInt32();
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sp<IMemory> imageData = interface_cast<IMemory>(data.readStrongBinder());
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camera_frame_metadata_t metadata;
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if (data.dataAvail() > 0) {
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metadata.number_of_faces = data.readInt32();
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// Zero faces is a valid case, to notify clients that no faces are now visible
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if (metadata.number_of_faces < 0 ||
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metadata.number_of_faces > (int32_t)(INT32_MAX / sizeof(camera_face_t))) {
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ALOGE("%s: Too large face count: %d", __FUNCTION__, metadata.number_of_faces);
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return BAD_VALUE;
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}
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metadata.faces = (camera_face_t *) data.readInplace(
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sizeof(camera_face_t) * metadata.number_of_faces);
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}
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dataCallback(msgType, imageData, &metadata);
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return NO_ERROR;
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} break;
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case DATA_CALLBACK_TIMESTAMP: {
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ALOGV("DATA_CALLBACK_TIMESTAMP");
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CHECK_INTERFACE(ICameraClient, data, reply);
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nsecs_t timestamp = data.readInt64();
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int32_t msgType = data.readInt32();
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sp<IMemory> imageData = interface_cast<IMemory>(data.readStrongBinder());
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dataCallbackTimestamp(timestamp, msgType, imageData);
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return NO_ERROR;
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} break;
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case RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP: {
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ALOGV("RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP");
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CHECK_INTERFACE(ICameraClient, data, reply);
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nsecs_t timestamp;
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status_t res = data.readInt64(×tamp);
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if (res != OK) {
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ALOGE("%s: Failed to read timestamp: %s (%d)", __FUNCTION__, strerror(-res), res);
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return BAD_VALUE;
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}
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native_handle_t* handle = data.readNativeHandle();
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if (handle == nullptr) {
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ALOGE("%s: Received a null native handle", __FUNCTION__);
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return BAD_VALUE;
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}
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// The native handle will be freed in BpCamera::releaseRecordingFrameHandle.
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recordingFrameHandleCallbackTimestamp(timestamp, handle);
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return NO_ERROR;
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} break;
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case RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP_BATCH: {
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ALOGV("RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP_BATCH");
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CHECK_INTERFACE(ICameraClient, data, reply);
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uint32_t n = 0;
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status_t res = data.readUint32(&n);
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if (res != OK) {
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ALOGE("%s: Failed to read batch size: %s (%d)", __FUNCTION__, strerror(-res), res);
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return BAD_VALUE;
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}
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std::vector<nsecs_t> timestamps;
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std::vector<native_handle_t*> handles;
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timestamps.reserve(n);
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handles.reserve(n);
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for (uint32_t i = 0; i < n; i++) {
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nsecs_t t;
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res = data.readInt64(&t);
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if (res != OK) {
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ALOGE("%s: Failed to read timestamp[%d]: %s (%d)",
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__FUNCTION__, i, strerror(-res), res);
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return BAD_VALUE;
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}
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timestamps.push_back(t);
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}
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for (uint32_t i = 0; i < n; i++) {
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native_handle_t* handle = data.readNativeHandle();
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if (handle == nullptr) {
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ALOGE("%s: Received a null native handle at handles[%d]",
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__FUNCTION__, i);
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return BAD_VALUE;
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}
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handles.push_back(handle);
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}
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// The native handle will be freed in BpCamera::releaseRecordingFrameHandleBatch.
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recordingFrameHandleCallbackTimestampBatch(timestamps, handles);
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return NO_ERROR;
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} break;
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default:
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return BBinder::onTransact(code, data, reply, flags);
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}
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}
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// ----------------------------------------------------------------------------
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} // namespace hardware
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} // namespace android
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