547 lines
21 KiB
C++
547 lines
21 KiB
C++
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/*
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* Copyright (C) 2022 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_TAG "ExtCamOfflnSsn"
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#include <android/log.h>
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#include "ExternalCameraOfflineSession.h"
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#include <aidl/android/hardware/camera/device/BufferStatus.h>
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#include <aidl/android/hardware/camera/device/ErrorMsg.h>
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#include <aidl/android/hardware/camera/device/ShutterMsg.h>
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#include <aidl/android/hardware/camera/device/StreamBuffer.h>
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#include <aidlcommonsupport/NativeHandle.h>
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#include <convert.h>
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#include <linux/videodev2.h>
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#include <sync/sync.h>
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#include <utils/Trace.h>
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#define HAVE_JPEG // required for libyuv.h to export MJPEG decode APIs
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#include <libyuv.h>
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namespace {
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// Size of request/result metadata fast message queue. Change to 0 to always use hwbinder buffer.
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constexpr size_t kMetadataMsgQueueSize = 1 << 18 /* 256kB */;
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} // anonymous namespace
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namespace android {
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namespace hardware {
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namespace camera {
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namespace device {
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namespace implementation {
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using ::aidl::android::hardware::camera::device::BufferStatus;
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using ::aidl::android::hardware::camera::device::ErrorMsg;
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using ::aidl::android::hardware::camera::device::ShutterMsg;
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using ::aidl::android::hardware::camera::device::StreamBuffer;
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// Static instance
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HandleImporter ExternalCameraOfflineSession::sHandleImporter;
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ExternalCameraOfflineSession::ExternalCameraOfflineSession(
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const CroppingType& croppingType, const common::V1_0::helper::CameraMetadata& chars,
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const std::string& cameraId, const std::string& exifMake, const std::string& exifModel,
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uint32_t blobBufferSize, bool afTrigger, const std::vector<Stream>& offlineStreams,
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std::deque<std::shared_ptr<HalRequest>>& offlineReqs,
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const std::map<int, CirculatingBuffers>& circulatingBuffers)
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: mCroppingType(croppingType),
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mChars(chars),
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mCameraId(cameraId),
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mExifMake(exifMake),
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mExifModel(exifModel),
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mBlobBufferSize(blobBufferSize),
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mAfTrigger(afTrigger),
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mOfflineStreams(offlineStreams),
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mOfflineReqs(offlineReqs),
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mCirculatingBuffers(circulatingBuffers) {}
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ExternalCameraOfflineSession::~ExternalCameraOfflineSession() {
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close();
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}
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bool ExternalCameraOfflineSession::initialize() {
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mResultMetadataQueue =
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std::make_shared<ResultMetadataQueue>(kMetadataMsgQueueSize, false /* non blocking */);
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if (!mResultMetadataQueue->isValid()) {
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ALOGE("%s: invalid result fmq", __FUNCTION__);
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return true;
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}
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return false;
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}
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Status ExternalCameraOfflineSession::importBuffer(int32_t streamId, uint64_t bufId,
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buffer_handle_t buf,
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buffer_handle_t** outBufPtr) {
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Mutex::Autolock _l(mCbsLock);
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return importBufferImpl(mCirculatingBuffers, sHandleImporter, streamId, bufId, buf, outBufPtr);
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}
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Status ExternalCameraOfflineSession::processCaptureResult(std::shared_ptr<HalRequest>& req) {
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ATRACE_CALL();
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// Fill output buffers
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std::vector<CaptureResult> results;
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results.resize(1);
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CaptureResult& result = results[0];
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result.frameNumber = req->frameNumber;
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result.partialResult = 1;
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result.inputBuffer.streamId = -1;
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result.outputBuffers.resize(req->buffers.size());
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for (size_t i = 0; i < req->buffers.size(); i++) {
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StreamBuffer& outputBuffer = result.outputBuffers[i];
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outputBuffer.streamId = req->buffers[i].streamId;
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outputBuffer.bufferId = req->buffers[i].bufferId;
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if (req->buffers[i].fenceTimeout) {
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outputBuffer.status = BufferStatus::ERROR;
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if (req->buffers[i].acquireFence >= 0) {
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native_handle_t* handle = native_handle_create(/*numFds*/ 1, /*numInts*/ 0);
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handle->data[0] = req->buffers[i].acquireFence;
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result.outputBuffers[i].releaseFence = android::makeToAidl(handle);
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}
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notifyError(req->frameNumber, req->buffers[i].streamId, ErrorCode::ERROR_BUFFER);
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} else {
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result.outputBuffers[i].status = BufferStatus::OK;
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// TODO: refactor
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if (req->buffers[i].acquireFence >= 0) {
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native_handle_t* handle = native_handle_create(/*numFds*/ 1, /*numInts*/ 0);
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handle->data[0] = req->buffers[i].acquireFence;
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outputBuffer.releaseFence = android::makeToAidl(handle);
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}
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}
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}
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// Fill capture result metadata
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fillCaptureResult(req->setting, req->shutterTs);
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const camera_metadata_t* rawResult = req->setting.getAndLock();
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convertToAidl(rawResult, &result.result);
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req->setting.unlock(rawResult);
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// Callback into framework
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invokeProcessCaptureResultCallback(results, /* tryWriteFmq */ true);
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freeReleaseFences(results);
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return Status::OK;
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}
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#define UPDATE(md, tag, data, size) \
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do { \
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if ((md).update((tag), (data), (size))) { \
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ALOGE("Update " #tag " failed!"); \
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return BAD_VALUE; \
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} \
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} while (0)
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status_t ExternalCameraOfflineSession::fillCaptureResult(common::V1_0::helper::CameraMetadata md,
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nsecs_t timestamp) {
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bool afTrigger = false;
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{
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std::lock_guard<std::mutex> lk(mAfTriggerLock);
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afTrigger = mAfTrigger;
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if (md.exists(ANDROID_CONTROL_AF_TRIGGER)) {
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camera_metadata_entry entry = md.find(ANDROID_CONTROL_AF_TRIGGER);
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if (entry.data.u8[0] == ANDROID_CONTROL_AF_TRIGGER_START) {
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mAfTrigger = afTrigger = true;
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} else if (entry.data.u8[0] == ANDROID_CONTROL_AF_TRIGGER_CANCEL) {
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mAfTrigger = afTrigger = false;
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}
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}
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}
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// For USB camera, the USB camera handles everything and we don't have control
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// over AF. We only simply fake the AF metadata based on the request
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// received here.
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uint8_t afState;
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if (afTrigger) {
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afState = ANDROID_CONTROL_AF_STATE_FOCUSED_LOCKED;
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} else {
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afState = ANDROID_CONTROL_AF_STATE_INACTIVE;
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}
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UPDATE(md, ANDROID_CONTROL_AF_STATE, &afState, 1);
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camera_metadata_ro_entry activeArraySize = mChars.find(ANDROID_SENSOR_INFO_ACTIVE_ARRAY_SIZE);
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return fillCaptureResultCommon(md, timestamp, activeArraySize);
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}
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void ExternalCameraOfflineSession::invokeProcessCaptureResultCallback(
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std::vector<CaptureResult>& results, bool tryWriteFmq) {
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if (mProcessCaptureResultLock.tryLock() != OK) {
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const nsecs_t NS_TO_SECOND = 1E9;
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ALOGV("%s: previous call is not finished! waiting 1s...", __FUNCTION__);
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if (mProcessCaptureResultLock.timedLock(/* 1s */ NS_TO_SECOND) != OK) {
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ALOGE("%s: cannot acquire lock in 1s, cannot proceed", __FUNCTION__);
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return;
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}
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}
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if (tryWriteFmq && mResultMetadataQueue->availableToWrite() > 0) {
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for (CaptureResult& result : results) {
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if (!result.result.metadata.empty()) {
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if (mResultMetadataQueue->write(
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reinterpret_cast<int8_t*>(result.result.metadata.data()),
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result.result.metadata.size())) {
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result.fmqResultSize = result.result.metadata.size();
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result.result.metadata.clear();
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} else {
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ALOGW("%s: couldn't utilize fmq, fall back to hwbinder", __FUNCTION__);
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result.fmqResultSize = 0;
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}
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} else {
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result.fmqResultSize = 0;
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}
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}
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}
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auto status = mCallback->processCaptureResult(results);
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if (!status.isOk()) {
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ALOGE("%s: processCaptureResult ERROR : %d:%d", __FUNCTION__, status.getExceptionCode(),
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status.getServiceSpecificError());
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}
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mProcessCaptureResultLock.unlock();
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}
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Status ExternalCameraOfflineSession::processCaptureRequestError(
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const std::shared_ptr<HalRequest>& req, std::vector<NotifyMsg>* outMsgs,
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std::vector<CaptureResult>* outResults) {
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ATRACE_CALL();
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if (outMsgs == nullptr) {
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notifyError(/*frameNum*/ req->frameNumber, /*stream*/ -1, ErrorCode::ERROR_REQUEST);
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} else {
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NotifyMsg shutter;
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shutter.set<NotifyMsg::Tag::shutter>(ShutterMsg{
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.frameNumber = req->frameNumber,
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.timestamp = req->shutterTs,
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});
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NotifyMsg error;
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error.set<NotifyMsg::Tag::error>(ErrorMsg{.frameNumber = req->frameNumber,
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.errorStreamId = -1,
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.errorCode = ErrorCode::ERROR_REQUEST});
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outMsgs->push_back(shutter);
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outMsgs->push_back(error);
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}
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// Fill output buffers
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CaptureResult result;
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result.frameNumber = req->frameNumber;
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result.partialResult = 1;
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result.inputBuffer.streamId = -1;
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result.outputBuffers.resize(req->buffers.size());
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for (size_t i = 0; i < req->buffers.size(); i++) {
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StreamBuffer& outputBuffer = result.outputBuffers[i];
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outputBuffer.streamId = req->buffers[i].streamId;
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outputBuffer.bufferId = req->buffers[i].bufferId;
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outputBuffer.status = BufferStatus::ERROR;
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if (req->buffers[i].acquireFence >= 0) {
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native_handle_t* handle = native_handle_create(/*numFds*/ 1, /*numInts*/ 0);
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handle->data[0] = req->buffers[i].acquireFence;
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outputBuffer.releaseFence = makeToAidl(handle);
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}
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}
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if (outResults == nullptr) {
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// Callback into framework
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std::vector<CaptureResult> results(1);
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results[0] = std::move(result);
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invokeProcessCaptureResultCallback(results, /* tryWriteFmq */ true);
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freeReleaseFences(results);
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} else {
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outResults->push_back(std::move(result));
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}
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return Status::OK;
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}
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ssize_t ExternalCameraOfflineSession::getJpegBufferSize(int32_t, int32_t) const {
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// Empty implementation here as the jpeg buffer size is passed in by ctor
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return 0;
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}
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void ExternalCameraOfflineSession::notifyError(int32_t frameNumber, int32_t streamId,
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ErrorCode ec) {
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NotifyMsg msg;
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msg.set<NotifyMsg::Tag::error>(
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ErrorMsg{.frameNumber = frameNumber, .errorStreamId = streamId, .errorCode = ec});
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mCallback->notify({msg});
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}
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ScopedAStatus ExternalCameraOfflineSession::setCallback(
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const std::shared_ptr<ICameraDeviceCallback>& in_cb) {
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Mutex::Autolock _il(mInterfaceLock);
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if (mCallback != nullptr && in_cb != nullptr) {
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ALOGE("%s: callback must not be set twice!", __FUNCTION__);
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return fromStatus(Status::OK);
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}
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mCallback = in_cb;
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initOutputThread();
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if (mOutputThread == nullptr) {
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ALOGE("%s: init OutputThread failed!", __FUNCTION__);
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}
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return fromStatus(Status::OK);
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}
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void ExternalCameraOfflineSession::initOutputThread() {
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if (mOutputThread != nullptr) {
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ALOGE("%s: OutputThread already exist!", __FUNCTION__);
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return;
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}
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// Grab a shared_ptr to 'this' from ndk::SharedRefBase::ref()
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std::shared_ptr<ExternalCameraOfflineSession> thiz = ref<ExternalCameraOfflineSession>();
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mBufferRequestThread = std::make_shared<ExternalCameraDeviceSession::BufferRequestThread>(
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/*parent=*/thiz, mCallback);
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mBufferRequestThread->run();
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mOutputThread = std::make_shared<OutputThread>(/*parent=*/thiz, mCroppingType, mChars,
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mBufferRequestThread, mOfflineReqs);
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mOutputThread->setExifMakeModel(mExifMake, mExifModel);
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Size inputSize = {mOfflineReqs[0]->frameIn->mWidth, mOfflineReqs[0]->frameIn->mHeight};
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Size maxThumbSize = getMaxThumbnailResolution(mChars);
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mOutputThread->allocateIntermediateBuffers(inputSize, maxThumbSize, mOfflineStreams,
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mBlobBufferSize);
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mOutputThread->run();
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}
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ScopedAStatus ExternalCameraOfflineSession::getCaptureResultMetadataQueue(
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MQDescriptor<int8_t, SynchronizedReadWrite>* _aidl_return) {
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Mutex::Autolock _il(mInterfaceLock);
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*_aidl_return = mResultMetadataQueue->dupeDesc();
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return fromStatus(Status::OK);
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}
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ScopedAStatus ExternalCameraOfflineSession::close() {
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Mutex::Autolock _il(mInterfaceLock);
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{
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Mutex::Autolock _l(mLock);
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if (mClosed) {
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ALOGW("%s: offline session already closed!", __FUNCTION__);
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return fromStatus(Status::OK);
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}
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}
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if (mBufferRequestThread != nullptr) {
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mBufferRequestThread->requestExitAndWait();
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mBufferRequestThread.reset();
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}
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if (mOutputThread) {
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mOutputThread->flush();
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mOutputThread->requestExitAndWait();
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mOutputThread.reset();
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}
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Mutex::Autolock _l(mLock);
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// free all buffers
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{
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Mutex::Autolock _cbl(mCbsLock);
|
||
|
|
for (auto& stream : mOfflineStreams) {
|
||
|
|
cleanupBuffersLocked(stream.id);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
mCallback.reset();
|
||
|
|
mClosed = true;
|
||
|
|
return fromStatus(Status::OK);
|
||
|
|
}
|
||
|
|
void ExternalCameraOfflineSession::cleanupBuffersLocked(int32_t id) {
|
||
|
|
for (auto& pair : mCirculatingBuffers.at(id)) {
|
||
|
|
sHandleImporter.freeBuffer(pair.second);
|
||
|
|
}
|
||
|
|
mCirculatingBuffers[id].clear();
|
||
|
|
mCirculatingBuffers.erase(id);
|
||
|
|
}
|
||
|
|
|
||
|
|
bool ExternalCameraOfflineSession::OutputThread::threadLoop() {
|
||
|
|
auto parent = mParent.lock();
|
||
|
|
if (parent == nullptr) {
|
||
|
|
ALOGE("%s: session has been disconnected!", __FUNCTION__);
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (mOfflineReqs.empty()) {
|
||
|
|
ALOGI("%s: all offline requests are processed. Stopping.", __FUNCTION__);
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
std::shared_ptr<HalRequest> req = mOfflineReqs.front();
|
||
|
|
mOfflineReqs.pop_front();
|
||
|
|
|
||
|
|
auto onDeviceError = [&](auto... args) {
|
||
|
|
ALOGE(args...);
|
||
|
|
parent->notifyError(req->frameNumber, /*stream*/ -1, ErrorCode::ERROR_DEVICE);
|
||
|
|
signalRequestDone();
|
||
|
|
return false;
|
||
|
|
};
|
||
|
|
|
||
|
|
if (req->frameIn->mFourcc != V4L2_PIX_FMT_MJPEG && req->frameIn->mFourcc != V4L2_PIX_FMT_Z16) {
|
||
|
|
return onDeviceError("%s: do not support V4L2 format %c%c%c%c", __FUNCTION__,
|
||
|
|
req->frameIn->mFourcc & 0xFF, (req->frameIn->mFourcc >> 8) & 0xFF,
|
||
|
|
(req->frameIn->mFourcc >> 16) & 0xFF,
|
||
|
|
(req->frameIn->mFourcc >> 24) & 0xFF);
|
||
|
|
}
|
||
|
|
|
||
|
|
int res = requestBufferStart(req->buffers);
|
||
|
|
if (res != 0) {
|
||
|
|
ALOGE("%s: send BufferRequest failed! res %d", __FUNCTION__, res);
|
||
|
|
return onDeviceError("%s: failed to send buffer request!", __FUNCTION__);
|
||
|
|
}
|
||
|
|
|
||
|
|
std::unique_lock<std::mutex> lk(mBufferLock);
|
||
|
|
// Convert input V4L2 frame to YU12 of the same size
|
||
|
|
// TODO: see if we can save some computation by converting to YV12 here
|
||
|
|
uint8_t* inData;
|
||
|
|
size_t inDataSize;
|
||
|
|
if (req->frameIn->getData(&inData, &inDataSize) != 0) {
|
||
|
|
lk.unlock();
|
||
|
|
return onDeviceError("%s: V4L2 buffer map failed", __FUNCTION__);
|
||
|
|
}
|
||
|
|
|
||
|
|
// TODO: in some special case maybe we can decode jpg directly to gralloc output?
|
||
|
|
if (req->frameIn->mFourcc == V4L2_PIX_FMT_MJPEG) {
|
||
|
|
ATRACE_BEGIN("MJPGtoI420");
|
||
|
|
int convRes = libyuv::MJPGToI420(
|
||
|
|
inData, inDataSize, static_cast<uint8_t*>(mYu12FrameLayout.y),
|
||
|
|
mYu12FrameLayout.yStride, static_cast<uint8_t*>(mYu12FrameLayout.cb),
|
||
|
|
mYu12FrameLayout.cStride, static_cast<uint8_t*>(mYu12FrameLayout.cr),
|
||
|
|
mYu12FrameLayout.cStride, mYu12Frame->mWidth, mYu12Frame->mHeight,
|
||
|
|
mYu12Frame->mWidth, mYu12Frame->mHeight);
|
||
|
|
ATRACE_END();
|
||
|
|
|
||
|
|
if (convRes != 0) {
|
||
|
|
// For some webcam, the first few V4L2 frames might be malformed...
|
||
|
|
ALOGE("%s: Convert V4L2 frame to YU12 failed! res %d", __FUNCTION__, convRes);
|
||
|
|
lk.unlock();
|
||
|
|
Status st = parent->processCaptureRequestError(req);
|
||
|
|
if (st != Status::OK) {
|
||
|
|
return onDeviceError("%s: failed to process capture request error!", __FUNCTION__);
|
||
|
|
}
|
||
|
|
signalRequestDone();
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
ATRACE_BEGIN("Wait for BufferRequest done");
|
||
|
|
res = waitForBufferRequestDone(&req->buffers);
|
||
|
|
ATRACE_END();
|
||
|
|
|
||
|
|
if (res != 0) {
|
||
|
|
ALOGE("%s: wait for BufferRequest done failed! res %d", __FUNCTION__, res);
|
||
|
|
lk.unlock();
|
||
|
|
return onDeviceError("%s: failed to process buffer request error!", __FUNCTION__);
|
||
|
|
}
|
||
|
|
|
||
|
|
ALOGV("%s processing new request", __FUNCTION__);
|
||
|
|
const int kSyncWaitTimeoutMs = 500;
|
||
|
|
for (auto& halBuf : req->buffers) {
|
||
|
|
if (*(halBuf.bufPtr) == nullptr) {
|
||
|
|
ALOGW("%s: buffer for stream %d missing", __FUNCTION__, halBuf.streamId);
|
||
|
|
halBuf.fenceTimeout = true;
|
||
|
|
} else if (halBuf.acquireFence >= 0) {
|
||
|
|
int ret = sync_wait(halBuf.acquireFence, kSyncWaitTimeoutMs);
|
||
|
|
if (ret) {
|
||
|
|
halBuf.fenceTimeout = true;
|
||
|
|
} else {
|
||
|
|
::close(halBuf.acquireFence);
|
||
|
|
halBuf.acquireFence = -1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (halBuf.fenceTimeout) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Gralloc lockYCbCr the buffer
|
||
|
|
switch (halBuf.format) {
|
||
|
|
case PixelFormat::BLOB: {
|
||
|
|
int ret = createJpegLocked(halBuf, req->setting);
|
||
|
|
|
||
|
|
if (ret != 0) {
|
||
|
|
lk.unlock();
|
||
|
|
return onDeviceError("%s: createJpegLocked failed with %d", __FUNCTION__, ret);
|
||
|
|
}
|
||
|
|
} break;
|
||
|
|
case PixelFormat::Y16: {
|
||
|
|
void* outLayout = sHandleImporter.lock(
|
||
|
|
*(halBuf.bufPtr), static_cast<uint64_t>(halBuf.usage), inDataSize);
|
||
|
|
|
||
|
|
std::memcpy(outLayout, inData, inDataSize);
|
||
|
|
|
||
|
|
int relFence = sHandleImporter.unlock(*(halBuf.bufPtr));
|
||
|
|
if (relFence >= 0) {
|
||
|
|
halBuf.acquireFence = relFence;
|
||
|
|
}
|
||
|
|
} break;
|
||
|
|
case PixelFormat::YCBCR_420_888:
|
||
|
|
case PixelFormat::YV12: {
|
||
|
|
IMapper::Rect outRect{0, 0, static_cast<int32_t>(halBuf.width),
|
||
|
|
static_cast<int32_t>(halBuf.height)};
|
||
|
|
YCbCrLayout outLayout = sHandleImporter.lockYCbCr(
|
||
|
|
*(halBuf.bufPtr), static_cast<uint64_t>(halBuf.usage), outRect);
|
||
|
|
ALOGV("%s: outLayout y %p cb %p cr %p y_str %d c_str %d c_step %d", __FUNCTION__,
|
||
|
|
outLayout.y, outLayout.cb, outLayout.cr, outLayout.yStride, outLayout.cStride,
|
||
|
|
outLayout.chromaStep);
|
||
|
|
|
||
|
|
// Convert to output buffer size/format
|
||
|
|
uint32_t outputFourcc = getFourCcFromLayout(outLayout);
|
||
|
|
ALOGV("%s: converting to format %c%c%c%c", __FUNCTION__, outputFourcc & 0xFF,
|
||
|
|
(outputFourcc >> 8) & 0xFF, (outputFourcc >> 16) & 0xFF,
|
||
|
|
(outputFourcc >> 24) & 0xFF);
|
||
|
|
|
||
|
|
YCbCrLayout cropAndScaled;
|
||
|
|
ATRACE_BEGIN("cropAndScaleLocked");
|
||
|
|
int ret = cropAndScaleLocked(mYu12Frame, Size{halBuf.width, halBuf.height},
|
||
|
|
&cropAndScaled);
|
||
|
|
ATRACE_END();
|
||
|
|
if (ret != 0) {
|
||
|
|
lk.unlock();
|
||
|
|
return onDeviceError("%s: crop and scale failed!", __FUNCTION__);
|
||
|
|
}
|
||
|
|
|
||
|
|
Size sz{halBuf.width, halBuf.height};
|
||
|
|
ATRACE_BEGIN("formatConvert");
|
||
|
|
ret = formatConvert(cropAndScaled, outLayout, sz, outputFourcc);
|
||
|
|
ATRACE_END();
|
||
|
|
if (ret != 0) {
|
||
|
|
lk.unlock();
|
||
|
|
return onDeviceError("%s: format coversion failed!", __FUNCTION__);
|
||
|
|
}
|
||
|
|
int relFence = sHandleImporter.unlock(*(halBuf.bufPtr));
|
||
|
|
if (relFence >= 0) {
|
||
|
|
halBuf.acquireFence = relFence;
|
||
|
|
}
|
||
|
|
} break;
|
||
|
|
default:
|
||
|
|
lk.unlock();
|
||
|
|
return onDeviceError("%s: unknown output format %x", __FUNCTION__, halBuf.format);
|
||
|
|
}
|
||
|
|
} // for each buffer
|
||
|
|
mScaledYu12Frames.clear();
|
||
|
|
|
||
|
|
// Don't hold the lock while calling back to parent
|
||
|
|
lk.unlock();
|
||
|
|
Status st = parent->processCaptureResult(req);
|
||
|
|
if (st != Status::OK) {
|
||
|
|
return onDeviceError("%s: failed to process capture result!", __FUNCTION__);
|
||
|
|
}
|
||
|
|
signalRequestDone();
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace implementation
|
||
|
|
} // namespace device
|
||
|
|
} // namespace camera
|
||
|
|
} // namespace hardware
|
||
|
|
} // namespace android
|