/*
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* Copyright (C) 2018 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 "ExtCamDev@3.4"
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//#define LOG_NDEBUG 0
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#include <log/log.h>
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#include <algorithm>
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#include <array>
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#include <linux/videodev2.h>
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#include "android-base/macros.h"
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#include "CameraMetadata.h"
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#include "../../3.2/default/include/convert.h"
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#include "ExternalCameraDevice_3_4.h"
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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 V3_4 {
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namespace implementation {
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namespace {
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// Only support MJPEG for now as it seems to be the one supports higher fps
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// Other formats to consider in the future:
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// * V4L2_PIX_FMT_YVU420 (== YV12)
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// * V4L2_PIX_FMT_YVYU (YVYU: can be converted to YV12 or other YUV420_888 formats)
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const std::array<uint32_t, /*size*/ 3> kSupportedFourCCs{
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{V4L2_PIX_FMT_MJPEG, V4L2_PIX_FMT_Z16, V4L2_PIX_FMT_YUYV}}; // double braces required in C++11
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constexpr int MAX_RETRY = 5; // Allow retry v4l2 open failures a few times.
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constexpr int OPEN_RETRY_SLEEP_US = 100000; // 100ms * MAX_RETRY = 0.5 seconds
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} // anonymous namespace
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ExternalCameraDevice::ExternalCameraDevice(
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const std::string& devName, const ExternalCameraConfig& cfg) :
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mDevName(devName),
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mCameraId(devNameToCameraId(devName, cfg)),
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mCfg(cfg){}
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ExternalCameraDevice::~ExternalCameraDevice() {}
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bool ExternalCameraDevice::isInitFailed() {
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Mutex::Autolock _l(mLock);
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return isInitFailedLocked();
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}
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std::string ExternalCameraDevice::devNameToCameraId(std::string devName,
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const ExternalCameraConfig& cfg){
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char devIdStr[2];
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sscanf(devName.c_str(), "/dev/video%s", devIdStr);
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int internalDevicesNum = cfg.mInternalDevices.size();
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int devId = atoi(devIdStr) - internalDevicesNum;
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return std::to_string(devId);
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}
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bool ExternalCameraDevice::isInitFailedLocked() {
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if (!mInitialized) {
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status_t ret = initCameraCharacteristics();
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if (ret != OK) {
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ALOGE("%s: init camera characteristics failed: errorno %d", __FUNCTION__, ret);
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mInitFailed = true;
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}
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mInitialized = true;
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}
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return mInitFailed;
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}
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Return<void> ExternalCameraDevice::getResourceCost(
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ICameraDevice::getResourceCost_cb _hidl_cb) {
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CameraResourceCost resCost;
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resCost.resourceCost = 100;
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_hidl_cb(Status::OK, resCost);
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return Void();
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}
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Return<void> ExternalCameraDevice::getCameraCharacteristics(
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ICameraDevice::getCameraCharacteristics_cb _hidl_cb) {
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Mutex::Autolock _l(mLock);
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V3_2::CameraMetadata hidlChars;
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if (isInitFailedLocked()) {
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_hidl_cb(Status::INTERNAL_ERROR, hidlChars);
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return Void();
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}
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const camera_metadata_t* rawMetadata = mCameraCharacteristics.getAndLock();
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V3_2::implementation::convertToHidl(rawMetadata, &hidlChars);
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_hidl_cb(Status::OK, hidlChars);
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mCameraCharacteristics.unlock(rawMetadata);
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return Void();
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}
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Return<Status> ExternalCameraDevice::setTorchMode(TorchMode) {
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return Status::OPERATION_NOT_SUPPORTED;
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}
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Return<void> ExternalCameraDevice::open(
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const sp<ICameraDeviceCallback>& callback, ICameraDevice::open_cb _hidl_cb) {
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Status status = Status::OK;
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sp<ExternalCameraDeviceSession> session = nullptr;
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if (callback == nullptr) {
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ALOGE("%s: cannot open camera %s. callback is null!",
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__FUNCTION__, mCameraId.c_str());
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_hidl_cb(Status::ILLEGAL_ARGUMENT, nullptr);
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return Void();
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}
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if (isInitFailed()) {
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ALOGE("%s: cannot open camera %s. camera init failed!",
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__FUNCTION__, mCameraId.c_str());
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_hidl_cb(Status::INTERNAL_ERROR, nullptr);
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return Void();
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}
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mLock.lock();
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ALOGV("%s: Initializing device for camera %s", __FUNCTION__, mCameraId.c_str());
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session = mSession.promote();
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if (session != nullptr && !session->isClosed()) {
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ALOGE("%s: cannot open an already opened camera!", __FUNCTION__);
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mLock.unlock();
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_hidl_cb(Status::CAMERA_IN_USE, nullptr);
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return Void();
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}
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unique_fd fd(::open(mDevName.c_str(), O_RDWR));
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if (fd.get() < 0) {
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int numAttempt = 0;
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do {
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ALOGW("%s: v4l2 device %s open failed, wait 33ms and try again",
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__FUNCTION__, mCameraId.c_str());
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usleep(OPEN_RETRY_SLEEP_US); // sleep and try again
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fd.reset(::open(mDevName.c_str(), O_RDWR));
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numAttempt++;
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} while (fd.get() < 0 && numAttempt <= MAX_RETRY);
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if (fd.get() < 0) {
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ALOGE("%s: v4l2 device open %s failed: %s",
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__FUNCTION__, mCameraId.c_str(), strerror(errno));
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mLock.unlock();
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_hidl_cb(Status::INTERNAL_ERROR, nullptr);
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return Void();
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}
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}
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session = createSession(
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callback, mCfg, mSupportedFormats, mCroppingType,
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mCameraCharacteristics, mCameraId, std::move(fd));
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if (session == nullptr) {
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ALOGE("%s: camera device session allocation failed", __FUNCTION__);
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mLock.unlock();
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_hidl_cb(Status::INTERNAL_ERROR, nullptr);
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return Void();
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}
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if (session->isInitFailed()) {
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ALOGE("%s: camera device session init failed", __FUNCTION__);
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session = nullptr;
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mLock.unlock();
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_hidl_cb(Status::INTERNAL_ERROR, nullptr);
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return Void();
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}
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mSession = session;
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mLock.unlock();
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_hidl_cb(status, session->getInterface());
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return Void();
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}
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Return<void> ExternalCameraDevice::dumpState(const ::android::hardware::hidl_handle& handle) {
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Mutex::Autolock _l(mLock);
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if (handle.getNativeHandle() == nullptr) {
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ALOGE("%s: handle must not be null", __FUNCTION__);
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return Void();
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}
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if (handle->numFds != 1 || handle->numInts != 0) {
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ALOGE("%s: handle must contain 1 FD and 0 integers! Got %d FDs and %d ints",
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__FUNCTION__, handle->numFds, handle->numInts);
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return Void();
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}
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int fd = handle->data[0];
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if (mSession == nullptr) {
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dprintf(fd, "No active camera device session instance\n");
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return Void();
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}
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auto session = mSession.promote();
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if (session == nullptr) {
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dprintf(fd, "No active camera device session instance\n");
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return Void();
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}
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// Call into active session to dump states
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session->dumpState(handle);
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return Void();
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}
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status_t ExternalCameraDevice::initCameraCharacteristics() {
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if (mCameraCharacteristics.isEmpty()) {
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// init camera characteristics
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unique_fd fd(::open(mDevName.c_str(), O_RDWR));
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if (fd.get() < 0) {
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ALOGE("%s: v4l2 device open %s failed errno %s", __FUNCTION__, mDevName.c_str(), strerror(errno));
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return DEAD_OBJECT;
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}
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status_t ret;
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ret = initDefaultCharsKeys(&mCameraCharacteristics);
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if (ret != OK) {
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ALOGE("%s: init default characteristics key failed: errorno %d", __FUNCTION__, ret);
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mCameraCharacteristics.clear();
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return ret;
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}
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ret = initCameraControlsCharsKeys(fd.get(), &mCameraCharacteristics);
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if (ret != OK) {
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ALOGE("%s: init camera control characteristics key failed: errorno %d", __FUNCTION__, ret);
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mCameraCharacteristics.clear();
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return ret;
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}
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ret = initOutputCharsKeys(fd.get(), &mCameraCharacteristics);
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if (ret != OK) {
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ALOGE("%s: init output characteristics key failed: errorno %d", __FUNCTION__, ret);
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mCameraCharacteristics.clear();
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return ret;
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}
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ret = initAvailableCapabilities(&mCameraCharacteristics);
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if (ret != OK) {
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ALOGE("%s: init available capabilities key failed: errorno %d", __FUNCTION__, ret);
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mCameraCharacteristics.clear();
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return ret;
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}
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}
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return OK;
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}
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#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
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#define UPDATE(tag, data, size) \
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do { \
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if (metadata->update((tag), (data), (size))) { \
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ALOGE("Update " #tag " failed!"); \
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return -EINVAL; \
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} \
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} while (0)
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status_t ExternalCameraDevice::initAvailableCapabilities(
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::android::hardware::camera::common::V1_0::helper::CameraMetadata* metadata) {
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if (mSupportedFormats.empty()) {
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ALOGE("%s: Supported formats list is empty", __FUNCTION__);
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return UNKNOWN_ERROR;
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}
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bool hasDepth = false;
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bool hasColor = false;
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for (const auto& fmt : mSupportedFormats) {
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switch (fmt.fourcc) {
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case V4L2_PIX_FMT_Z16: hasDepth = true; break;
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case V4L2_PIX_FMT_MJPEG: hasColor = true; break;
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case V4L2_PIX_FMT_YUYV: hasColor = true; break;
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default: ALOGW("%s: Unsupported format found", __FUNCTION__);
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}
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}
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std::vector<uint8_t> availableCapabilities;
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if (hasDepth) {
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availableCapabilities.push_back(ANDROID_REQUEST_AVAILABLE_CAPABILITIES_DEPTH_OUTPUT);
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}
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if (hasColor) {
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availableCapabilities.push_back(ANDROID_REQUEST_AVAILABLE_CAPABILITIES_BACKWARD_COMPATIBLE);
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}
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if(!availableCapabilities.empty()) {
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UPDATE(ANDROID_REQUEST_AVAILABLE_CAPABILITIES, availableCapabilities.data(),
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availableCapabilities.size());
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}
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return OK;
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}
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status_t ExternalCameraDevice::initDefaultCharsKeys(
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::android::hardware::camera::common::V1_0::helper::CameraMetadata* metadata) {
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const uint8_t hardware_level = ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_EXTERNAL;
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UPDATE(ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL, &hardware_level, 1);
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// android.colorCorrection
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const uint8_t availableAberrationModes[] = {
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ANDROID_COLOR_CORRECTION_ABERRATION_MODE_OFF};
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UPDATE(ANDROID_COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES,
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availableAberrationModes, ARRAY_SIZE(availableAberrationModes));
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// android.control
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const uint8_t antibandingMode =
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ANDROID_CONTROL_AE_ANTIBANDING_MODE_AUTO;
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UPDATE(ANDROID_CONTROL_AE_AVAILABLE_ANTIBANDING_MODES,
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&antibandingMode, 1);
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const int32_t controlMaxRegions[] = {/*AE*/ 0, /*AWB*/ 0, /*AF*/ 0};
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UPDATE(ANDROID_CONTROL_MAX_REGIONS, controlMaxRegions,
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ARRAY_SIZE(controlMaxRegions));
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const uint8_t videoStabilizationMode =
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ANDROID_CONTROL_VIDEO_STABILIZATION_MODE_OFF;
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UPDATE(ANDROID_CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES,
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&videoStabilizationMode, 1);
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const uint8_t awbAvailableMode = ANDROID_CONTROL_AWB_MODE_AUTO;
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UPDATE(ANDROID_CONTROL_AWB_AVAILABLE_MODES, &awbAvailableMode, 1);
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const uint8_t aeAvailableMode = ANDROID_CONTROL_AE_MODE_ON;
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UPDATE(ANDROID_CONTROL_AE_AVAILABLE_MODES, &aeAvailableMode, 1);
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const uint8_t availableFffect = ANDROID_CONTROL_EFFECT_MODE_OFF;
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UPDATE(ANDROID_CONTROL_AVAILABLE_EFFECTS, &availableFffect, 1);
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const uint8_t controlAvailableModes[] = {ANDROID_CONTROL_MODE_OFF,
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ANDROID_CONTROL_MODE_AUTO};
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UPDATE(ANDROID_CONTROL_AVAILABLE_MODES, controlAvailableModes,
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ARRAY_SIZE(controlAvailableModes));
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// android.edge
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const uint8_t edgeMode = ANDROID_EDGE_MODE_OFF;
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UPDATE(ANDROID_EDGE_AVAILABLE_EDGE_MODES, &edgeMode, 1);
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// android.flash
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const uint8_t flashInfo = ANDROID_FLASH_INFO_AVAILABLE_FALSE;
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UPDATE(ANDROID_FLASH_INFO_AVAILABLE, &flashInfo, 1);
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// android.hotPixel
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const uint8_t hotPixelMode = ANDROID_HOT_PIXEL_MODE_OFF;
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UPDATE(ANDROID_HOT_PIXEL_AVAILABLE_HOT_PIXEL_MODES, &hotPixelMode, 1);
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// android.jpeg
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const int32_t jpegAvailableThumbnailSizes[] = {0, 0,
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176, 144,
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240, 144,
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256, 144,
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240, 160,
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256, 154,
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240, 180};
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UPDATE(ANDROID_JPEG_AVAILABLE_THUMBNAIL_SIZES, jpegAvailableThumbnailSizes,
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ARRAY_SIZE(jpegAvailableThumbnailSizes));
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const int32_t jpegMaxSize = mCfg.maxJpegBufSize;
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UPDATE(ANDROID_JPEG_MAX_SIZE, &jpegMaxSize, 1);
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const int32_t jpegOrientation = 0;
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UPDATE(ANDROID_JPEG_ORIENTATION, &jpegOrientation, 1);
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// android.lens
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const uint8_t focusDistanceCalibration =
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ANDROID_LENS_INFO_FOCUS_DISTANCE_CALIBRATION_UNCALIBRATED;
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UPDATE(ANDROID_LENS_INFO_FOCUS_DISTANCE_CALIBRATION, &focusDistanceCalibration, 1);
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const uint8_t opticalStabilizationMode =
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ANDROID_LENS_OPTICAL_STABILIZATION_MODE_OFF;
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UPDATE(ANDROID_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION,
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&opticalStabilizationMode, 1);
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const uint8_t facing = ANDROID_LENS_FACING_EXTERNAL;
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UPDATE(ANDROID_LENS_FACING, &facing, 1);
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// android.noiseReduction
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const uint8_t noiseReductionMode = ANDROID_NOISE_REDUCTION_MODE_OFF;
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UPDATE(ANDROID_NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES,
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&noiseReductionMode, 1);
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UPDATE(ANDROID_NOISE_REDUCTION_MODE, &noiseReductionMode, 1);
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const int32_t partialResultCount = 1;
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UPDATE(ANDROID_REQUEST_PARTIAL_RESULT_COUNT, &partialResultCount, 1);
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// This means pipeline latency of X frame intervals. The maximum number is 4.
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const uint8_t requestPipelineMaxDepth = 4;
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UPDATE(ANDROID_REQUEST_PIPELINE_MAX_DEPTH, &requestPipelineMaxDepth, 1);
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// Three numbers represent the maximum numbers of different types of output
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// streams simultaneously. The types are raw sensor, processed (but not
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// stalling), and processed (but stalling). For usb limited mode, raw sensor
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// is not supported. Stalling stream is JPEG. Non-stalling streams are
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// YUV_420_888 or YV12.
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const int32_t requestMaxNumOutputStreams[] = {
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/*RAW*/0,
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/*Processed*/ExternalCameraDeviceSession::kMaxProcessedStream,
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/*Stall*/ExternalCameraDeviceSession::kMaxStallStream};
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UPDATE(ANDROID_REQUEST_MAX_NUM_OUTPUT_STREAMS, requestMaxNumOutputStreams,
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ARRAY_SIZE(requestMaxNumOutputStreams));
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// Limited mode doesn't support reprocessing.
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const int32_t requestMaxNumInputStreams = 0;
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UPDATE(ANDROID_REQUEST_MAX_NUM_INPUT_STREAMS, &requestMaxNumInputStreams,
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1);
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// android.scaler
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// TODO: b/72263447 V4L2_CID_ZOOM_*
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const float scalerAvailableMaxDigitalZoom[] = {1};
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UPDATE(ANDROID_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM,
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scalerAvailableMaxDigitalZoom,
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ARRAY_SIZE(scalerAvailableMaxDigitalZoom));
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const uint8_t croppingType = ANDROID_SCALER_CROPPING_TYPE_CENTER_ONLY;
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UPDATE(ANDROID_SCALER_CROPPING_TYPE, &croppingType, 1);
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const int32_t testPatternModes[] = {
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ANDROID_SENSOR_TEST_PATTERN_MODE_OFF};
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UPDATE(ANDROID_SENSOR_AVAILABLE_TEST_PATTERN_MODES, testPatternModes,
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ARRAY_SIZE(testPatternModes));
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const uint8_t timestampSource = ANDROID_SENSOR_INFO_TIMESTAMP_SOURCE_UNKNOWN;
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UPDATE(ANDROID_SENSOR_INFO_TIMESTAMP_SOURCE, ×tampSource, 1);
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// Orientation is a bit odd for external camera, but consider it as the orientation
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// between the external camera sensor (which is usually landscape) and the device's
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// natural display orientation. For devices with natural landscape display (ex: tablet/TV), the
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// orientation should be 0. For devices with natural portrait display (phone), the orientation
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// should be 270.
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const int32_t orientation = mCfg.orientation;
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UPDATE(ANDROID_SENSOR_ORIENTATION, &orientation, 1);
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// android.shading
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const uint8_t availabeMode = ANDROID_SHADING_MODE_OFF;
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UPDATE(ANDROID_SHADING_AVAILABLE_MODES, &availabeMode, 1);
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// android.statistics
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const uint8_t faceDetectMode = ANDROID_STATISTICS_FACE_DETECT_MODE_OFF;
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UPDATE(ANDROID_STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES, &faceDetectMode,
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1);
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const int32_t maxFaceCount = 0;
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UPDATE(ANDROID_STATISTICS_INFO_MAX_FACE_COUNT, &maxFaceCount, 1);
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const uint8_t availableHotpixelMode =
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ANDROID_STATISTICS_HOT_PIXEL_MAP_MODE_OFF;
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UPDATE(ANDROID_STATISTICS_INFO_AVAILABLE_HOT_PIXEL_MAP_MODES,
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&availableHotpixelMode, 1);
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const uint8_t lensShadingMapMode =
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ANDROID_STATISTICS_LENS_SHADING_MAP_MODE_OFF;
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UPDATE(ANDROID_STATISTICS_INFO_AVAILABLE_LENS_SHADING_MAP_MODES,
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&lensShadingMapMode, 1);
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// android.sync
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const int32_t maxLatency = ANDROID_SYNC_MAX_LATENCY_UNKNOWN;
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UPDATE(ANDROID_SYNC_MAX_LATENCY, &maxLatency, 1);
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/* Other sensor/RAW realted keys:
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* android.sensor.info.colorFilterArrangement -> no need if we don't do RAW
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* android.sensor.info.physicalSize -> not available
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* android.sensor.info.whiteLevel -> not available/not needed
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* android.sensor.info.lensShadingApplied -> not needed
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* android.sensor.info.preCorrectionActiveArraySize -> not available/not needed
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* android.sensor.blackLevelPattern -> not available/not needed
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*/
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const int32_t availableRequestKeys[] = {
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ANDROID_COLOR_CORRECTION_ABERRATION_MODE,
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ANDROID_CONTROL_AE_ANTIBANDING_MODE,
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ANDROID_CONTROL_AE_EXPOSURE_COMPENSATION,
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ANDROID_CONTROL_AE_LOCK,
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ANDROID_CONTROL_AE_MODE,
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ANDROID_CONTROL_AE_PRECAPTURE_TRIGGER,
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ANDROID_CONTROL_AE_TARGET_FPS_RANGE,
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ANDROID_CONTROL_AF_MODE,
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ANDROID_CONTROL_AF_TRIGGER,
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ANDROID_CONTROL_AWB_LOCK,
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ANDROID_CONTROL_AWB_MODE,
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ANDROID_CONTROL_CAPTURE_INTENT,
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ANDROID_CONTROL_EFFECT_MODE,
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ANDROID_CONTROL_MODE,
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ANDROID_CONTROL_SCENE_MODE,
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ANDROID_CONTROL_VIDEO_STABILIZATION_MODE,
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ANDROID_FLASH_MODE,
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ANDROID_JPEG_ORIENTATION,
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ANDROID_JPEG_QUALITY,
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ANDROID_JPEG_THUMBNAIL_QUALITY,
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ANDROID_JPEG_THUMBNAIL_SIZE,
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ANDROID_LENS_OPTICAL_STABILIZATION_MODE,
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ANDROID_NOISE_REDUCTION_MODE,
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ANDROID_SCALER_CROP_REGION,
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ANDROID_SENSOR_TEST_PATTERN_MODE,
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ANDROID_STATISTICS_FACE_DETECT_MODE,
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ANDROID_STATISTICS_HOT_PIXEL_MAP_MODE};
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UPDATE(ANDROID_REQUEST_AVAILABLE_REQUEST_KEYS, availableRequestKeys,
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ARRAY_SIZE(availableRequestKeys));
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const int32_t availableResultKeys[] = {
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ANDROID_COLOR_CORRECTION_ABERRATION_MODE,
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ANDROID_CONTROL_AE_ANTIBANDING_MODE,
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ANDROID_CONTROL_AE_EXPOSURE_COMPENSATION,
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ANDROID_CONTROL_AE_LOCK,
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ANDROID_CONTROL_AE_MODE,
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ANDROID_CONTROL_AE_PRECAPTURE_TRIGGER,
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ANDROID_CONTROL_AE_STATE,
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ANDROID_CONTROL_AE_TARGET_FPS_RANGE,
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ANDROID_CONTROL_AF_MODE,
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ANDROID_CONTROL_AF_STATE,
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ANDROID_CONTROL_AF_TRIGGER,
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ANDROID_CONTROL_AWB_LOCK,
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ANDROID_CONTROL_AWB_MODE,
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ANDROID_CONTROL_AWB_STATE,
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ANDROID_CONTROL_CAPTURE_INTENT,
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ANDROID_CONTROL_EFFECT_MODE,
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ANDROID_CONTROL_MODE,
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ANDROID_CONTROL_SCENE_MODE,
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ANDROID_CONTROL_VIDEO_STABILIZATION_MODE,
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ANDROID_FLASH_MODE,
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ANDROID_FLASH_STATE,
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ANDROID_JPEG_ORIENTATION,
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ANDROID_JPEG_QUALITY,
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ANDROID_JPEG_THUMBNAIL_QUALITY,
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ANDROID_JPEG_THUMBNAIL_SIZE,
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ANDROID_LENS_OPTICAL_STABILIZATION_MODE,
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ANDROID_NOISE_REDUCTION_MODE,
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ANDROID_REQUEST_PIPELINE_DEPTH,
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ANDROID_SCALER_CROP_REGION,
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ANDROID_SENSOR_TIMESTAMP,
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ANDROID_STATISTICS_FACE_DETECT_MODE,
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ANDROID_STATISTICS_HOT_PIXEL_MAP_MODE,
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ANDROID_STATISTICS_LENS_SHADING_MAP_MODE,
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ANDROID_STATISTICS_SCENE_FLICKER};
|
UPDATE(ANDROID_REQUEST_AVAILABLE_RESULT_KEYS, availableResultKeys,
|
ARRAY_SIZE(availableResultKeys));
|
|
UPDATE(ANDROID_REQUEST_AVAILABLE_CHARACTERISTICS_KEYS,
|
AVAILABLE_CHARACTERISTICS_KEYS_3_4.data(),
|
AVAILABLE_CHARACTERISTICS_KEYS_3_4.size());
|
|
return OK;
|
}
|
|
status_t ExternalCameraDevice::initCameraControlsCharsKeys(int,
|
::android::hardware::camera::common::V1_0::helper::CameraMetadata* metadata) {
|
/**
|
* android.sensor.info.sensitivityRange -> V4L2_CID_ISO_SENSITIVITY
|
* android.sensor.info.exposureTimeRange -> V4L2_CID_EXPOSURE_ABSOLUTE
|
* android.sensor.info.maxFrameDuration -> TBD
|
* android.lens.info.minimumFocusDistance -> V4L2_CID_FOCUS_ABSOLUTE
|
* android.lens.info.hyperfocalDistance
|
* android.lens.info.availableFocalLengths -> not available?
|
*/
|
|
// android.control
|
// No AE compensation support for now.
|
// TODO: V4L2_CID_EXPOSURE_BIAS
|
const int32_t controlAeCompensationRange[] = {0, 0};
|
UPDATE(ANDROID_CONTROL_AE_COMPENSATION_RANGE, controlAeCompensationRange,
|
ARRAY_SIZE(controlAeCompensationRange));
|
const camera_metadata_rational_t controlAeCompensationStep[] = {{0, 1}};
|
UPDATE(ANDROID_CONTROL_AE_COMPENSATION_STEP, controlAeCompensationStep,
|
ARRAY_SIZE(controlAeCompensationStep));
|
|
|
// TODO: Check V4L2_CID_AUTO_FOCUS_*.
|
const uint8_t afAvailableModes[] = {ANDROID_CONTROL_AF_MODE_AUTO,
|
ANDROID_CONTROL_AF_MODE_OFF};
|
UPDATE(ANDROID_CONTROL_AF_AVAILABLE_MODES, afAvailableModes,
|
ARRAY_SIZE(afAvailableModes));
|
|
// TODO: V4L2_CID_SCENE_MODE
|
const uint8_t availableSceneMode = ANDROID_CONTROL_SCENE_MODE_DISABLED;
|
UPDATE(ANDROID_CONTROL_AVAILABLE_SCENE_MODES, &availableSceneMode, 1);
|
|
// TODO: V4L2_CID_3A_LOCK
|
const uint8_t aeLockAvailable = ANDROID_CONTROL_AE_LOCK_AVAILABLE_FALSE;
|
UPDATE(ANDROID_CONTROL_AE_LOCK_AVAILABLE, &aeLockAvailable, 1);
|
const uint8_t awbLockAvailable = ANDROID_CONTROL_AWB_LOCK_AVAILABLE_FALSE;
|
UPDATE(ANDROID_CONTROL_AWB_LOCK_AVAILABLE, &awbLockAvailable, 1);
|
|
// TODO: V4L2_CID_ZOOM_*
|
const float scalerAvailableMaxDigitalZoom[] = {1};
|
UPDATE(ANDROID_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM,
|
scalerAvailableMaxDigitalZoom,
|
ARRAY_SIZE(scalerAvailableMaxDigitalZoom));
|
|
return OK;
|
}
|
|
template <size_t SIZE>
|
status_t ExternalCameraDevice::initOutputCharskeysByFormat(
|
::android::hardware::camera::common::V1_0::helper::CameraMetadata* metadata,
|
uint32_t fourcc, const std::array<int, SIZE>& halFormats,
|
int streamConfigTag, int streamConfiguration, int minFrameDuration, int stallDuration) {
|
if (mSupportedFormats.empty()) {
|
ALOGE("%s: Init supported format list failed", __FUNCTION__);
|
return UNKNOWN_ERROR;
|
}
|
|
std::vector<int32_t> streamConfigurations;
|
std::vector<int64_t> minFrameDurations;
|
std::vector<int64_t> stallDurations;
|
|
for (const auto& supportedFormat : mSupportedFormats) {
|
if (supportedFormat.fourcc != fourcc) {
|
// Skip 4CCs not meant for the halFormats
|
continue;
|
}
|
for (const auto& format : halFormats) {
|
streamConfigurations.push_back(format);
|
streamConfigurations.push_back(supportedFormat.width);
|
streamConfigurations.push_back(supportedFormat.height);
|
streamConfigurations.push_back(streamConfigTag);
|
}
|
|
int64_t minFrameDuration = std::numeric_limits<int64_t>::max();
|
for (const auto& fr : supportedFormat.frameRates) {
|
// 1000000000LL < (2^32 - 1) and
|
// fr.durationNumerator is uint32_t, so no overflow here
|
int64_t frameDuration = 1000000000LL * fr.durationNumerator /
|
fr.durationDenominator;
|
if (frameDuration < minFrameDuration) {
|
minFrameDuration = frameDuration;
|
}
|
}
|
|
for (const auto& format : halFormats) {
|
minFrameDurations.push_back(format);
|
minFrameDurations.push_back(supportedFormat.width);
|
minFrameDurations.push_back(supportedFormat.height);
|
minFrameDurations.push_back(minFrameDuration);
|
}
|
|
// The stall duration is 0 for non-jpeg formats. For JPEG format, stall
|
// duration can be 0 if JPEG is small. Here we choose 1 sec for JPEG.
|
// TODO: b/72261675. Maybe set this dynamically
|
for (const auto& format : halFormats) {
|
const int64_t NS_TO_SECOND = 1000000000;
|
int64_t stall_duration =
|
(format == HAL_PIXEL_FORMAT_BLOB) ? NS_TO_SECOND : 0;
|
stallDurations.push_back(format);
|
stallDurations.push_back(supportedFormat.width);
|
stallDurations.push_back(supportedFormat.height);
|
stallDurations.push_back(stall_duration);
|
}
|
}
|
|
UPDATE(streamConfiguration, streamConfigurations.data(), streamConfigurations.size());
|
|
UPDATE(minFrameDuration, minFrameDurations.data(), minFrameDurations.size());
|
|
UPDATE(stallDuration, stallDurations.data(), stallDurations.size());
|
|
return true;
|
}
|
|
bool ExternalCameraDevice::calculateMinFps(
|
::android::hardware::camera::common::V1_0::helper::CameraMetadata* metadata) {
|
std::set<int32_t> framerates;
|
int32_t minFps = std::numeric_limits<int32_t>::max();
|
|
for (const auto& supportedFormat : mSupportedFormats) {
|
for (const auto& fr : supportedFormat.frameRates) {
|
int32_t frameRateInt = static_cast<int32_t>(fr.getDouble());
|
if (minFps > frameRateInt) {
|
minFps = frameRateInt;
|
}
|
framerates.insert(frameRateInt);
|
}
|
}
|
|
std::vector<int32_t> fpsRanges;
|
// FPS ranges
|
for (const auto& framerate : framerates) {
|
// Empirical: webcams often have close to 2x fps error and cannot support fixed fps range
|
fpsRanges.push_back(framerate / 2);
|
fpsRanges.push_back(framerate);
|
}
|
minFps /= 2;
|
int64_t maxFrameDuration = 1000000000LL / minFps;
|
|
UPDATE(ANDROID_CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES, fpsRanges.data(),
|
fpsRanges.size());
|
|
UPDATE(ANDROID_SENSOR_INFO_MAX_FRAME_DURATION, &maxFrameDuration, 1);
|
|
return true;
|
}
|
|
status_t ExternalCameraDevice::initOutputCharsKeys(
|
int fd, ::android::hardware::camera::common::V1_0::helper::CameraMetadata* metadata) {
|
initSupportedFormatsLocked(fd);
|
if (mSupportedFormats.empty()) {
|
ALOGE("%s: Init supported format list failed", __FUNCTION__);
|
return UNKNOWN_ERROR;
|
}
|
|
bool hasDepth = false;
|
bool hasColor = false;
|
|
// For V4L2_PIX_FMT_Z16
|
std::array<int, /*size*/ 1> halDepthFormats{{HAL_PIXEL_FORMAT_Y16}};
|
// For V4L2_PIX_FMT_MJPEG
|
std::array<int, /*size*/ 3> halFormats{{HAL_PIXEL_FORMAT_BLOB, HAL_PIXEL_FORMAT_YCbCr_420_888,
|
HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED}};
|
// For V4L2_PIX_FMT_YUYV
|
std::array<int, /*size*/ 3> halYuyvFormats{{HAL_PIXEL_FORMAT_BLOB,
|
HAL_PIXEL_FORMAT_YCbCr_420_888,
|
HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED}};
|
bool isMJPEG = false;
|
bool isYUYV = false;
|
|
for (const auto& supportedFormat : mSupportedFormats) {
|
switch (supportedFormat.fourcc) {
|
case V4L2_PIX_FMT_Z16:
|
hasDepth = true;
|
break;
|
case V4L2_PIX_FMT_MJPEG:
|
hasColor = true;
|
isMJPEG = true;
|
break;
|
case V4L2_PIX_FMT_YUYV:
|
hasColor = true;
|
isYUYV = true;
|
break;
|
default:
|
ALOGW("%s: format %c%c%c%c is not supported!", __FUNCTION__,
|
supportedFormat.fourcc & 0xFF, (supportedFormat.fourcc >> 8) & 0xFF,
|
(supportedFormat.fourcc >> 16) & 0xFF, (supportedFormat.fourcc >> 24) & 0xFF);
|
}
|
}
|
|
if (hasDepth) {
|
initOutputCharskeysByFormat(metadata, V4L2_PIX_FMT_Z16, halDepthFormats,
|
ANDROID_DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS_OUTPUT,
|
ANDROID_DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS,
|
ANDROID_DEPTH_AVAILABLE_DEPTH_MIN_FRAME_DURATIONS,
|
ANDROID_DEPTH_AVAILABLE_DEPTH_STALL_DURATIONS);
|
}
|
if (hasColor) {
|
if (isMJPEG) {
|
initOutputCharskeysByFormat(metadata, V4L2_PIX_FMT_MJPEG, halFormats,
|
ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT,
|
ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS,
|
ANDROID_SCALER_AVAILABLE_MIN_FRAME_DURATIONS,
|
ANDROID_SCALER_AVAILABLE_STALL_DURATIONS);
|
} else if (isYUYV) {
|
initOutputCharskeysByFormat(metadata, V4L2_PIX_FMT_YUYV, halYuyvFormats,
|
ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT,
|
ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS,
|
ANDROID_SCALER_AVAILABLE_MIN_FRAME_DURATIONS,
|
ANDROID_SCALER_AVAILABLE_STALL_DURATIONS);
|
}
|
}
|
|
calculateMinFps(metadata);
|
|
SupportedV4L2Format maximumFormat {.width = 0, .height = 0};
|
for (const auto& supportedFormat : mSupportedFormats) {
|
if (supportedFormat.width >= maximumFormat.width &&
|
supportedFormat.height >= maximumFormat.height) {
|
maximumFormat = supportedFormat;
|
}
|
}
|
int32_t activeArraySize[] = {0, 0,
|
static_cast<int32_t>(maximumFormat.width),
|
static_cast<int32_t>(maximumFormat.height)};
|
UPDATE(ANDROID_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE,
|
activeArraySize, ARRAY_SIZE(activeArraySize));
|
UPDATE(ANDROID_SENSOR_INFO_ACTIVE_ARRAY_SIZE, activeArraySize,
|
ARRAY_SIZE(activeArraySize));
|
|
int32_t pixelArraySize[] = {static_cast<int32_t>(maximumFormat.width),
|
static_cast<int32_t>(maximumFormat.height)};
|
UPDATE(ANDROID_SENSOR_INFO_PIXEL_ARRAY_SIZE, pixelArraySize,
|
ARRAY_SIZE(pixelArraySize));
|
return OK;
|
}
|
|
#undef ARRAY_SIZE
|
#undef UPDATE
|
|
void ExternalCameraDevice::getFrameRateList(
|
int fd, double fpsUpperBound, SupportedV4L2Format* format) {
|
format->frameRates.clear();
|
|
v4l2_frmivalenum frameInterval {
|
.pixel_format = format->fourcc,
|
.width = format->width,
|
.height = format->height,
|
.index = 0
|
};
|
|
for (frameInterval.index = 0;
|
TEMP_FAILURE_RETRY(ioctl(fd, VIDIOC_ENUM_FRAMEINTERVALS, &frameInterval)) == 0;
|
++frameInterval.index) {
|
if (frameInterval.type == V4L2_FRMIVAL_TYPE_DISCRETE) {
|
if (frameInterval.discrete.numerator != 0) {
|
SupportedV4L2Format::FrameRate fr = {
|
frameInterval.discrete.numerator,
|
frameInterval.discrete.denominator};
|
double framerate = fr.getDouble();
|
if (framerate > fpsUpperBound) {
|
continue;
|
}
|
ALOGV("index:%d, format:%c%c%c%c, w %d, h %d, framerate %f",
|
frameInterval.index,
|
frameInterval.pixel_format & 0xFF,
|
(frameInterval.pixel_format >> 8) & 0xFF,
|
(frameInterval.pixel_format >> 16) & 0xFF,
|
(frameInterval.pixel_format >> 24) & 0xFF,
|
frameInterval.width, frameInterval.height, framerate);
|
format->frameRates.push_back(fr);
|
}
|
}
|
}
|
|
if (format->frameRates.empty()) {
|
ALOGE("%s: failed to get supported frame rates for format:%c%c%c%c w %d h %d",
|
__FUNCTION__,
|
frameInterval.pixel_format & 0xFF,
|
(frameInterval.pixel_format >> 8) & 0xFF,
|
(frameInterval.pixel_format >> 16) & 0xFF,
|
(frameInterval.pixel_format >> 24) & 0xFF,
|
frameInterval.width, frameInterval.height);
|
}
|
}
|
|
void ExternalCameraDevice::trimSupportedFormats(
|
CroppingType cropType,
|
/*inout*/std::vector<SupportedV4L2Format>* pFmts) {
|
std::vector<SupportedV4L2Format>& sortedFmts = *pFmts;
|
if (cropType == VERTICAL) {
|
std::sort(sortedFmts.begin(), sortedFmts.end(),
|
[](const SupportedV4L2Format& a, const SupportedV4L2Format& b) -> bool {
|
if (a.width == b.width) {
|
return a.height < b.height;
|
}
|
return a.width < b.width;
|
});
|
} else {
|
std::sort(sortedFmts.begin(), sortedFmts.end(),
|
[](const SupportedV4L2Format& a, const SupportedV4L2Format& b) -> bool {
|
if (a.height == b.height) {
|
return a.width < b.width;
|
}
|
return a.height < b.height;
|
});
|
}
|
|
if (sortedFmts.size() == 0) {
|
ALOGE("%s: input format list is empty!", __FUNCTION__);
|
return;
|
}
|
|
const auto& maxSize = sortedFmts[sortedFmts.size() - 1];
|
float maxSizeAr = ASPECT_RATIO(maxSize);
|
|
// Remove formats that has aspect ratio not croppable from largest size
|
std::vector<SupportedV4L2Format> out;
|
for (const auto& fmt : sortedFmts) {
|
float ar = ASPECT_RATIO(fmt);
|
if (isAspectRatioClose(ar, maxSizeAr)) {
|
out.push_back(fmt);
|
} else if (cropType == HORIZONTAL && ar < maxSizeAr) {
|
out.push_back(fmt);
|
} else if (cropType == VERTICAL && ar > maxSizeAr) {
|
out.push_back(fmt);
|
} else {
|
ALOGV("%s: size (%d,%d) is removed due to unable to crop %s from (%d,%d)",
|
__FUNCTION__, fmt.width, fmt.height,
|
cropType == VERTICAL ? "vertically" : "horizontally",
|
maxSize.width, maxSize.height);
|
}
|
}
|
sortedFmts = out;
|
}
|
|
std::vector<SupportedV4L2Format> ExternalCameraDevice::getCandidateSupportedFormatsLocked(
|
int fd, CroppingType cropType,
|
const std::vector<ExternalCameraConfig::FpsLimitation>& fpsLimits,
|
const std::vector<ExternalCameraConfig::FpsLimitation>& depthFpsLimits,
|
const Size& minStreamSize,
|
bool depthEnabled) {
|
std::vector<SupportedV4L2Format> outFmts;
|
struct v4l2_fmtdesc fmtdesc {
|
.index = 0,
|
.type = V4L2_BUF_TYPE_VIDEO_CAPTURE};
|
int ret = 0;
|
while (ret == 0) {
|
ret = TEMP_FAILURE_RETRY(ioctl(fd, VIDIOC_ENUM_FMT, &fmtdesc));
|
ALOGV("index:%d,ret:%d, format:%c%c%c%c", fmtdesc.index, ret,
|
fmtdesc.pixelformat & 0xFF,
|
(fmtdesc.pixelformat >> 8) & 0xFF,
|
(fmtdesc.pixelformat >> 16) & 0xFF,
|
(fmtdesc.pixelformat >> 24) & 0xFF);
|
if (ret == 0 && !(fmtdesc.flags & V4L2_FMT_FLAG_EMULATED)) {
|
auto it = std::find (
|
kSupportedFourCCs.begin(), kSupportedFourCCs.end(), fmtdesc.pixelformat);
|
if (it != kSupportedFourCCs.end()) {
|
// Found supported format
|
v4l2_frmsizeenum frameSize {
|
.index = 0,
|
.pixel_format = fmtdesc.pixelformat};
|
for (; TEMP_FAILURE_RETRY(ioctl(fd, VIDIOC_ENUM_FRAMESIZES, &frameSize)) == 0;
|
++frameSize.index) {
|
if (frameSize.type == V4L2_FRMSIZE_TYPE_DISCRETE) {
|
ALOGV("index:%d, format:%c%c%c%c, w %d, h %d", frameSize.index,
|
fmtdesc.pixelformat & 0xFF,
|
(fmtdesc.pixelformat >> 8) & 0xFF,
|
(fmtdesc.pixelformat >> 16) & 0xFF,
|
(fmtdesc.pixelformat >> 24) & 0xFF,
|
frameSize.discrete.width, frameSize.discrete.height);
|
// Disregard h > w formats so all aspect ratio (h/w) <= 1.0
|
// This will simplify the crop/scaling logic down the road
|
if (frameSize.discrete.height > frameSize.discrete.width) {
|
continue;
|
}
|
// Discard all formats which is smaller than minStreamSize
|
if (frameSize.discrete.width < minStreamSize.width
|
|| frameSize.discrete.height < minStreamSize.height) {
|
continue;
|
}
|
SupportedV4L2Format format {
|
.width = frameSize.discrete.width,
|
.height = frameSize.discrete.height,
|
.fourcc = fmtdesc.pixelformat
|
};
|
|
if (format.fourcc == V4L2_PIX_FMT_Z16 && depthEnabled) {
|
updateFpsBounds(fd, cropType, depthFpsLimits, format, outFmts);
|
} else {
|
updateFpsBounds(fd, cropType, fpsLimits, format, outFmts);
|
}
|
}
|
}
|
}
|
}
|
fmtdesc.index++;
|
}
|
trimSupportedFormats(cropType, &outFmts);
|
return outFmts;
|
}
|
|
void ExternalCameraDevice::updateFpsBounds(
|
int fd, CroppingType cropType,
|
const std::vector<ExternalCameraConfig::FpsLimitation>& fpsLimits, SupportedV4L2Format format,
|
std::vector<SupportedV4L2Format>& outFmts) {
|
double fpsUpperBound = -1.0;
|
for (const auto& limit : fpsLimits) {
|
if (cropType == VERTICAL) {
|
if (format.width <= limit.size.width) {
|
fpsUpperBound = limit.fpsUpperBound;
|
break;
|
}
|
} else { // HORIZONTAL
|
if (format.height <= limit.size.height) {
|
fpsUpperBound = limit.fpsUpperBound;
|
break;
|
}
|
}
|
}
|
if (fpsUpperBound < 0.f) {
|
return;
|
}
|
|
getFrameRateList(fd, fpsUpperBound, &format);
|
if (!format.frameRates.empty()) {
|
outFmts.push_back(format);
|
}
|
}
|
|
void ExternalCameraDevice::initSupportedFormatsLocked(int fd) {
|
std::vector<SupportedV4L2Format> horizontalFmts = getCandidateSupportedFormatsLocked(
|
fd, HORIZONTAL, mCfg.fpsLimits, mCfg.depthFpsLimits, mCfg.minStreamSize, mCfg.depthEnabled);
|
std::vector<SupportedV4L2Format> verticalFmts = getCandidateSupportedFormatsLocked(
|
fd, VERTICAL, mCfg.fpsLimits, mCfg.depthFpsLimits, mCfg.minStreamSize, mCfg.depthEnabled);
|
|
size_t horiSize = horizontalFmts.size();
|
size_t vertSize = verticalFmts.size();
|
|
if (horiSize == 0 && vertSize == 0) {
|
ALOGE("%s: cannot find suitable cropping type!", __FUNCTION__);
|
return;
|
}
|
|
if (horiSize == 0) {
|
mSupportedFormats = verticalFmts;
|
mCroppingType = VERTICAL;
|
return;
|
} else if (vertSize == 0) {
|
mSupportedFormats = horizontalFmts;
|
mCroppingType = HORIZONTAL;
|
return;
|
}
|
|
const auto& maxHoriSize = horizontalFmts[horizontalFmts.size() - 1];
|
const auto& maxVertSize = verticalFmts[verticalFmts.size() - 1];
|
|
// Try to keep largest possible output size
|
// When they are the same or ambiguous, pick the one support more sizes
|
if (maxHoriSize.width == maxVertSize.width &&
|
maxHoriSize.height == maxVertSize.height) {
|
if (horiSize > vertSize) {
|
mSupportedFormats = horizontalFmts;
|
mCroppingType = HORIZONTAL;
|
} else {
|
mSupportedFormats = verticalFmts;
|
mCroppingType = VERTICAL;
|
}
|
} else if (maxHoriSize.width >= maxVertSize.width &&
|
maxHoriSize.height >= maxVertSize.height) {
|
mSupportedFormats = horizontalFmts;
|
mCroppingType = HORIZONTAL;
|
} else if (maxHoriSize.width <= maxVertSize.width &&
|
maxHoriSize.height <= maxVertSize.height) {
|
mSupportedFormats = verticalFmts;
|
mCroppingType = VERTICAL;
|
} else {
|
if (horiSize > vertSize) {
|
mSupportedFormats = horizontalFmts;
|
mCroppingType = HORIZONTAL;
|
} else {
|
mSupportedFormats = verticalFmts;
|
mCroppingType = VERTICAL;
|
}
|
}
|
}
|
|
sp<ExternalCameraDeviceSession> ExternalCameraDevice::createSession(
|
const sp<ICameraDeviceCallback>& cb,
|
const ExternalCameraConfig& cfg,
|
const std::vector<SupportedV4L2Format>& sortedFormats,
|
const CroppingType& croppingType,
|
const common::V1_0::helper::CameraMetadata& chars,
|
const std::string& cameraId,
|
unique_fd v4l2Fd) {
|
return new ExternalCameraDeviceSession(
|
cb, cfg, sortedFormats, croppingType, chars, cameraId, std::move(v4l2Fd));
|
}
|
|
} // namespace implementation
|
} // namespace V3_4
|
} // namespace device
|
} // namespace camera
|
} // namespace hardware
|
} // namespace android
|
