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v811_spc009/hardware/interfaces/camera/device/3.4/default/ExternalCameraDevice.cpp

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/*
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "ExtCamDev@3.4"
//#define LOG_NDEBUG 0
#include <log/log.h>
#include <algorithm>
#include <array>
#include <regex>
#include <linux/videodev2.h>
#include "android-base/macros.h"
#include "CameraMetadata.h"
#include "../../3.2/default/include/convert.h"
#include "ExternalCameraDevice_3_4.h"
namespace android {
namespace hardware {
namespace camera {
namespace device {
namespace V3_4 {
namespace implementation {
namespace {
// Only support MJPEG for now as it seems to be the one supports higher fps
// Other formats to consider in the future:
// * V4L2_PIX_FMT_YVU420 (== YV12)
// * V4L2_PIX_FMT_YVYU (YVYU: can be converted to YV12 or other YUV420_888 formats)
const std::array<uint32_t, /*size*/ 2> kSupportedFourCCs{
{V4L2_PIX_FMT_MJPEG, V4L2_PIX_FMT_Z16}}; // double braces required in C++11
constexpr int MAX_RETRY = 5; // Allow retry v4l2 open failures a few times.
constexpr int OPEN_RETRY_SLEEP_US = 100000; // 100ms * MAX_RETRY = 0.5 seconds
} // anonymous namespace
const std::regex kDevicePathRE("/dev/video([0-9]+)");
ExternalCameraDevice::ExternalCameraDevice(
const std::string& devicePath, const ExternalCameraConfig& cfg) :
mCameraId("-1"),
mDevicePath(devicePath),
mCfg(cfg) {
std::smatch sm;
if (std::regex_match(mDevicePath, sm, kDevicePathRE)) {
mCameraId = std::to_string(mCfg.cameraIdOffset + std::stoi(sm[1]));
} else {
ALOGE("%s: device path match failed for %s", __FUNCTION__, mDevicePath.c_str());
}
}
ExternalCameraDevice::~ExternalCameraDevice() {}
bool ExternalCameraDevice::isInitFailed() {
Mutex::Autolock _l(mLock);
return isInitFailedLocked();
}
bool ExternalCameraDevice::isInitFailedLocked() {
if (!mInitialized) {
status_t ret = initCameraCharacteristics();
if (ret != OK) {
ALOGE("%s: init camera characteristics failed: errorno %d", __FUNCTION__, ret);
mInitFailed = true;
}
mInitialized = true;
}
return mInitFailed;
}
Return<void> ExternalCameraDevice::getResourceCost(
ICameraDevice::getResourceCost_cb _hidl_cb) {
CameraResourceCost resCost;
resCost.resourceCost = 100;
_hidl_cb(Status::OK, resCost);
return Void();
}
Return<void> ExternalCameraDevice::getCameraCharacteristics(
ICameraDevice::getCameraCharacteristics_cb _hidl_cb) {
Mutex::Autolock _l(mLock);
V3_2::CameraMetadata hidlChars;
if (isInitFailedLocked()) {
_hidl_cb(Status::INTERNAL_ERROR, hidlChars);
return Void();
}
const camera_metadata_t* rawMetadata = mCameraCharacteristics.getAndLock();
V3_2::implementation::convertToHidl(rawMetadata, &hidlChars);
_hidl_cb(Status::OK, hidlChars);
mCameraCharacteristics.unlock(rawMetadata);
return Void();
}
Return<Status> ExternalCameraDevice::setTorchMode(TorchMode) {
return Status::OPERATION_NOT_SUPPORTED;
}
Return<void> ExternalCameraDevice::open(
const sp<ICameraDeviceCallback>& callback, ICameraDevice::open_cb _hidl_cb) {
Status status = Status::OK;
sp<ExternalCameraDeviceSession> session = nullptr;
if (callback == nullptr) {
ALOGE("%s: cannot open camera %s. callback is null!",
__FUNCTION__, mCameraId.c_str());
_hidl_cb(Status::ILLEGAL_ARGUMENT, nullptr);
return Void();
}
if (isInitFailed()) {
ALOGE("%s: cannot open camera %s. camera init failed!",
__FUNCTION__, mCameraId.c_str());
_hidl_cb(Status::INTERNAL_ERROR, nullptr);
return Void();
}
mLock.lock();
ALOGV("%s: Initializing device for camera %s", __FUNCTION__, mCameraId.c_str());
session = mSession.promote();
if (session != nullptr && !session->isClosed()) {
ALOGE("%s: cannot open an already opened camera!", __FUNCTION__);
mLock.unlock();
_hidl_cb(Status::CAMERA_IN_USE, nullptr);
return Void();
}
unique_fd fd(::open(mDevicePath.c_str(), O_RDWR));
if (fd.get() < 0) {
int numAttempt = 0;
do {
ALOGW("%s: v4l2 device %s open failed, wait 33ms and try again",
__FUNCTION__, mDevicePath.c_str());
usleep(OPEN_RETRY_SLEEP_US); // sleep and try again
fd.reset(::open(mDevicePath.c_str(), O_RDWR));
numAttempt++;
} while (fd.get() < 0 && numAttempt <= MAX_RETRY);
if (fd.get() < 0) {
ALOGE("%s: v4l2 device open %s failed: %s",
__FUNCTION__, mDevicePath.c_str(), strerror(errno));
mLock.unlock();
_hidl_cb(Status::INTERNAL_ERROR, nullptr);
return Void();
}
}
session = createSession(
callback, mCfg, mSupportedFormats, mCroppingType,
mCameraCharacteristics, mCameraId, std::move(fd));
if (session == nullptr) {
ALOGE("%s: camera device session allocation failed", __FUNCTION__);
mLock.unlock();
_hidl_cb(Status::INTERNAL_ERROR, nullptr);
return Void();
}
if (session->isInitFailed()) {
ALOGE("%s: camera device session init failed", __FUNCTION__);
session = nullptr;
mLock.unlock();
_hidl_cb(Status::INTERNAL_ERROR, nullptr);
return Void();
}
mSession = session;
mLock.unlock();
_hidl_cb(status, session->getInterface());
return Void();
}
Return<void> ExternalCameraDevice::dumpState(const ::android::hardware::hidl_handle& handle) {
Mutex::Autolock _l(mLock);
if (handle.getNativeHandle() == nullptr) {
ALOGE("%s: handle must not be null", __FUNCTION__);
return Void();
}
if (handle->numFds != 1 || handle->numInts != 0) {
ALOGE("%s: handle must contain 1 FD and 0 integers! Got %d FDs and %d ints",
__FUNCTION__, handle->numFds, handle->numInts);
return Void();
}
int fd = handle->data[0];
if (mSession == nullptr) {
dprintf(fd, "No active camera device session instance\n");
return Void();
}
auto session = mSession.promote();
if (session == nullptr) {
dprintf(fd, "No active camera device session instance\n");
return Void();
}
// Call into active session to dump states
session->dumpState(handle);
return Void();
}
status_t ExternalCameraDevice::initCameraCharacteristics() {
if (mCameraCharacteristics.isEmpty()) {
// init camera characteristics
unique_fd fd(::open(mDevicePath.c_str(), O_RDWR));
if (fd.get() < 0) {
ALOGE("%s: v4l2 device open %s failed", __FUNCTION__, mDevicePath.c_str());
return DEAD_OBJECT;
}
status_t ret;
ret = initDefaultCharsKeys(&mCameraCharacteristics);
if (ret != OK) {
ALOGE("%s: init default characteristics key failed: errorno %d", __FUNCTION__, ret);
mCameraCharacteristics.clear();
return ret;
}
ret = initCameraControlsCharsKeys(fd.get(), &mCameraCharacteristics);
if (ret != OK) {
ALOGE("%s: init camera control characteristics key failed: errorno %d", __FUNCTION__, ret);
mCameraCharacteristics.clear();
return ret;
}
ret = initOutputCharsKeys(fd.get(), &mCameraCharacteristics);
if (ret != OK) {
ALOGE("%s: init output characteristics key failed: errorno %d", __FUNCTION__, ret);
mCameraCharacteristics.clear();
return ret;
}
ret = initAvailableCapabilities(&mCameraCharacteristics);
if (ret != OK) {
ALOGE("%s: init available capabilities key failed: errorno %d", __FUNCTION__, ret);
mCameraCharacteristics.clear();
return ret;
}
}
return OK;
}
#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
#define UPDATE(tag, data, size) \
do { \
if (metadata->update((tag), (data), (size))) { \
ALOGE("Update " #tag " failed!"); \
return -EINVAL; \
} \
} while (0)
status_t ExternalCameraDevice::initAvailableCapabilities(
::android::hardware::camera::common::V1_0::helper::CameraMetadata* metadata) {
if (mSupportedFormats.empty()) {
ALOGE("%s: Supported formats list is empty", __FUNCTION__);
return UNKNOWN_ERROR;
}
bool hasDepth = false;
bool hasColor = false;
for (const auto& fmt : mSupportedFormats) {
switch (fmt.fourcc) {
case V4L2_PIX_FMT_Z16: hasDepth = true; break;
case V4L2_PIX_FMT_MJPEG: hasColor = true; break;
default: ALOGW("%s: Unsupported format found", __FUNCTION__);
}
}
std::vector<uint8_t> availableCapabilities;
if (hasDepth) {
availableCapabilities.push_back(ANDROID_REQUEST_AVAILABLE_CAPABILITIES_DEPTH_OUTPUT);
}
if (hasColor) {
availableCapabilities.push_back(ANDROID_REQUEST_AVAILABLE_CAPABILITIES_BACKWARD_COMPATIBLE);
}
if(!availableCapabilities.empty()) {
UPDATE(ANDROID_REQUEST_AVAILABLE_CAPABILITIES, availableCapabilities.data(),
availableCapabilities.size());
}
return OK;
}
status_t ExternalCameraDevice::initDefaultCharsKeys(
::android::hardware::camera::common::V1_0::helper::CameraMetadata* metadata) {
const uint8_t hardware_level = ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_EXTERNAL;
UPDATE(ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL, &hardware_level, 1);
// android.colorCorrection
const uint8_t availableAberrationModes[] = {
ANDROID_COLOR_CORRECTION_ABERRATION_MODE_OFF};
UPDATE(ANDROID_COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES,
availableAberrationModes, ARRAY_SIZE(availableAberrationModes));
// android.control
const uint8_t antibandingMode =
ANDROID_CONTROL_AE_ANTIBANDING_MODE_AUTO;
UPDATE(ANDROID_CONTROL_AE_AVAILABLE_ANTIBANDING_MODES,
&antibandingMode, 1);
const int32_t controlMaxRegions[] = {/*AE*/ 0, /*AWB*/ 0, /*AF*/ 0};
UPDATE(ANDROID_CONTROL_MAX_REGIONS, controlMaxRegions,
ARRAY_SIZE(controlMaxRegions));
const uint8_t videoStabilizationMode =
ANDROID_CONTROL_VIDEO_STABILIZATION_MODE_OFF;
UPDATE(ANDROID_CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES,
&videoStabilizationMode, 1);
const uint8_t awbAvailableMode = ANDROID_CONTROL_AWB_MODE_AUTO;
UPDATE(ANDROID_CONTROL_AWB_AVAILABLE_MODES, &awbAvailableMode, 1);
const uint8_t aeAvailableMode = ANDROID_CONTROL_AE_MODE_ON;
UPDATE(ANDROID_CONTROL_AE_AVAILABLE_MODES, &aeAvailableMode, 1);
const uint8_t availableFffect = ANDROID_CONTROL_EFFECT_MODE_OFF;
UPDATE(ANDROID_CONTROL_AVAILABLE_EFFECTS, &availableFffect, 1);
const uint8_t controlAvailableModes[] = {ANDROID_CONTROL_MODE_OFF,
ANDROID_CONTROL_MODE_AUTO};
UPDATE(ANDROID_CONTROL_AVAILABLE_MODES, controlAvailableModes,
ARRAY_SIZE(controlAvailableModes));
// android.edge
const uint8_t edgeMode = ANDROID_EDGE_MODE_OFF;
UPDATE(ANDROID_EDGE_AVAILABLE_EDGE_MODES, &edgeMode, 1);
// android.flash
const uint8_t flashInfo = ANDROID_FLASH_INFO_AVAILABLE_FALSE;
UPDATE(ANDROID_FLASH_INFO_AVAILABLE, &flashInfo, 1);
// android.hotPixel
const uint8_t hotPixelMode = ANDROID_HOT_PIXEL_MODE_OFF;
UPDATE(ANDROID_HOT_PIXEL_AVAILABLE_HOT_PIXEL_MODES, &hotPixelMode, 1);
// android.jpeg
const int32_t jpegAvailableThumbnailSizes[] = {0, 0,
176, 144,
240, 144,
256, 144,
240, 160,
256, 154,
240, 180};
UPDATE(ANDROID_JPEG_AVAILABLE_THUMBNAIL_SIZES, jpegAvailableThumbnailSizes,
ARRAY_SIZE(jpegAvailableThumbnailSizes));
const int32_t jpegMaxSize = mCfg.maxJpegBufSize;
UPDATE(ANDROID_JPEG_MAX_SIZE, &jpegMaxSize, 1);
// android.lens
const uint8_t focusDistanceCalibration =
ANDROID_LENS_INFO_FOCUS_DISTANCE_CALIBRATION_UNCALIBRATED;
UPDATE(ANDROID_LENS_INFO_FOCUS_DISTANCE_CALIBRATION, &focusDistanceCalibration, 1);
const uint8_t opticalStabilizationMode =
ANDROID_LENS_OPTICAL_STABILIZATION_MODE_OFF;
UPDATE(ANDROID_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION,
&opticalStabilizationMode, 1);
const uint8_t facing = ANDROID_LENS_FACING_EXTERNAL;
UPDATE(ANDROID_LENS_FACING, &facing, 1);
// android.noiseReduction
const uint8_t noiseReductionMode = ANDROID_NOISE_REDUCTION_MODE_OFF;
UPDATE(ANDROID_NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES,
&noiseReductionMode, 1);
UPDATE(ANDROID_NOISE_REDUCTION_MODE, &noiseReductionMode, 1);
const int32_t partialResultCount = 1;
UPDATE(ANDROID_REQUEST_PARTIAL_RESULT_COUNT, &partialResultCount, 1);
// This means pipeline latency of X frame intervals. The maximum number is 4.
const uint8_t requestPipelineMaxDepth = 4;
UPDATE(ANDROID_REQUEST_PIPELINE_MAX_DEPTH, &requestPipelineMaxDepth, 1);
// Three numbers represent the maximum numbers of different types of output
// streams simultaneously. The types are raw sensor, processed (but not
// stalling), and processed (but stalling). For usb limited mode, raw sensor
// is not supported. Stalling stream is JPEG. Non-stalling streams are
// YUV_420_888 or YV12.
const int32_t requestMaxNumOutputStreams[] = {
/*RAW*/0,
/*Processed*/ExternalCameraDeviceSession::kMaxProcessedStream,
/*Stall*/ExternalCameraDeviceSession::kMaxStallStream};
UPDATE(ANDROID_REQUEST_MAX_NUM_OUTPUT_STREAMS, requestMaxNumOutputStreams,
ARRAY_SIZE(requestMaxNumOutputStreams));
// Limited mode doesn't support reprocessing.
const int32_t requestMaxNumInputStreams = 0;
UPDATE(ANDROID_REQUEST_MAX_NUM_INPUT_STREAMS, &requestMaxNumInputStreams,
1);
// android.scaler
// TODO: b/72263447 V4L2_CID_ZOOM_*
const float scalerAvailableMaxDigitalZoom[] = {1};
UPDATE(ANDROID_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM,
scalerAvailableMaxDigitalZoom,
ARRAY_SIZE(scalerAvailableMaxDigitalZoom));
const uint8_t croppingType = ANDROID_SCALER_CROPPING_TYPE_CENTER_ONLY;
UPDATE(ANDROID_SCALER_CROPPING_TYPE, &croppingType, 1);
const int32_t testPatternModes[] = {
ANDROID_SENSOR_TEST_PATTERN_MODE_OFF};
UPDATE(ANDROID_SENSOR_AVAILABLE_TEST_PATTERN_MODES, testPatternModes,
ARRAY_SIZE(testPatternModes));
const uint8_t timestampSource = ANDROID_SENSOR_INFO_TIMESTAMP_SOURCE_UNKNOWN;
UPDATE(ANDROID_SENSOR_INFO_TIMESTAMP_SOURCE, &timestampSource, 1);
// Orientation is a bit odd for external camera, but consider it as the orientation
// between the external camera sensor (which is usually landscape) and the device's
// natural display orientation. For devices with natural landscape display (ex: tablet/TV), the
// orientation should be 0. For devices with natural portrait display (phone), the orientation
// should be 270.
const int32_t orientation = mCfg.orientation;
UPDATE(ANDROID_SENSOR_ORIENTATION, &orientation, 1);
// android.shading
const uint8_t availabeMode = ANDROID_SHADING_MODE_OFF;
UPDATE(ANDROID_SHADING_AVAILABLE_MODES, &availabeMode, 1);
// android.statistics
const uint8_t faceDetectMode = ANDROID_STATISTICS_FACE_DETECT_MODE_OFF;
UPDATE(ANDROID_STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES, &faceDetectMode,
1);
const int32_t maxFaceCount = 0;
UPDATE(ANDROID_STATISTICS_INFO_MAX_FACE_COUNT, &maxFaceCount, 1);
const uint8_t availableHotpixelMode =
ANDROID_STATISTICS_HOT_PIXEL_MAP_MODE_OFF;
UPDATE(ANDROID_STATISTICS_INFO_AVAILABLE_HOT_PIXEL_MAP_MODES,
&availableHotpixelMode, 1);
const uint8_t lensShadingMapMode =
ANDROID_STATISTICS_LENS_SHADING_MAP_MODE_OFF;
UPDATE(ANDROID_STATISTICS_INFO_AVAILABLE_LENS_SHADING_MAP_MODES,
&lensShadingMapMode, 1);
// android.sync
const int32_t maxLatency = ANDROID_SYNC_MAX_LATENCY_UNKNOWN;
UPDATE(ANDROID_SYNC_MAX_LATENCY, &maxLatency, 1);
/* Other sensor/RAW realted keys:
* android.sensor.info.colorFilterArrangement -> no need if we don't do RAW
* android.sensor.info.physicalSize -> not available
* android.sensor.info.whiteLevel -> not available/not needed
* android.sensor.info.lensShadingApplied -> not needed
* android.sensor.info.preCorrectionActiveArraySize -> not available/not needed
* android.sensor.blackLevelPattern -> not available/not needed
*/
const int32_t availableRequestKeys[] = {
ANDROID_COLOR_CORRECTION_ABERRATION_MODE,
ANDROID_CONTROL_AE_ANTIBANDING_MODE,
ANDROID_CONTROL_AE_EXPOSURE_COMPENSATION,
ANDROID_CONTROL_AE_LOCK,
ANDROID_CONTROL_AE_MODE,
ANDROID_CONTROL_AE_PRECAPTURE_TRIGGER,
ANDROID_CONTROL_AE_TARGET_FPS_RANGE,
ANDROID_CONTROL_AF_MODE,
ANDROID_CONTROL_AF_TRIGGER,
ANDROID_CONTROL_AWB_LOCK,
ANDROID_CONTROL_AWB_MODE,
ANDROID_CONTROL_CAPTURE_INTENT,
ANDROID_CONTROL_EFFECT_MODE,
ANDROID_CONTROL_MODE,
ANDROID_CONTROL_SCENE_MODE,
ANDROID_CONTROL_VIDEO_STABILIZATION_MODE,
ANDROID_FLASH_MODE,
ANDROID_JPEG_ORIENTATION,
ANDROID_JPEG_QUALITY,
ANDROID_JPEG_THUMBNAIL_QUALITY,
ANDROID_JPEG_THUMBNAIL_SIZE,
ANDROID_LENS_OPTICAL_STABILIZATION_MODE,
ANDROID_NOISE_REDUCTION_MODE,
ANDROID_SCALER_CROP_REGION,
ANDROID_SENSOR_TEST_PATTERN_MODE,
ANDROID_STATISTICS_FACE_DETECT_MODE,
ANDROID_STATISTICS_HOT_PIXEL_MAP_MODE};
UPDATE(ANDROID_REQUEST_AVAILABLE_REQUEST_KEYS, availableRequestKeys,
ARRAY_SIZE(availableRequestKeys));
const int32_t availableResultKeys[] = {
ANDROID_COLOR_CORRECTION_ABERRATION_MODE,
ANDROID_CONTROL_AE_ANTIBANDING_MODE,
ANDROID_CONTROL_AE_EXPOSURE_COMPENSATION,
ANDROID_CONTROL_AE_LOCK,
ANDROID_CONTROL_AE_MODE,
ANDROID_CONTROL_AE_PRECAPTURE_TRIGGER,
ANDROID_CONTROL_AE_STATE,
ANDROID_CONTROL_AE_TARGET_FPS_RANGE,
ANDROID_CONTROL_AF_MODE,
ANDROID_CONTROL_AF_STATE,
ANDROID_CONTROL_AF_TRIGGER,
ANDROID_CONTROL_AWB_LOCK,
ANDROID_CONTROL_AWB_MODE,
ANDROID_CONTROL_AWB_STATE,
ANDROID_CONTROL_CAPTURE_INTENT,
ANDROID_CONTROL_EFFECT_MODE,
ANDROID_CONTROL_MODE,
ANDROID_CONTROL_SCENE_MODE,
ANDROID_CONTROL_VIDEO_STABILIZATION_MODE,
ANDROID_FLASH_MODE,
ANDROID_FLASH_STATE,
ANDROID_JPEG_ORIENTATION,
ANDROID_JPEG_QUALITY,
ANDROID_JPEG_THUMBNAIL_QUALITY,
ANDROID_JPEG_THUMBNAIL_SIZE,
ANDROID_LENS_OPTICAL_STABILIZATION_MODE,
ANDROID_NOISE_REDUCTION_MODE,
ANDROID_REQUEST_PIPELINE_DEPTH,
ANDROID_SCALER_CROP_REGION,
ANDROID_SENSOR_TIMESTAMP,
ANDROID_STATISTICS_FACE_DETECT_MODE,
ANDROID_STATISTICS_HOT_PIXEL_MAP_MODE,
ANDROID_STATISTICS_LENS_SHADING_MAP_MODE,
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 (const auto& supportedFormat : mSupportedFormats) {
switch (supportedFormat.fourcc) {
case V4L2_PIX_FMT_Z16:
hasDepth = true;
break;
case V4L2_PIX_FMT_MJPEG:
hasColor = 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) {
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);
}
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{
.index = 0,
.pixel_format = format->fourcc,
.width = format->width,
.height = format->height,
};
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
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