[libcamera-devel] [RFC PATCH v4 05/21] android: Add infrastructure for determining capabilities and hardware level
Paul Elder
paul.elder at ideasonboard.com
Fri Jul 16 12:56:15 CEST 2021
Add the infrastructure for checking and reporting capabilities. Use
these capabilities to determine the hardware level as well.
Bug: https://bugs.libcamera.org/show_bug.cgi?id=55
Signed-off-by: Paul Elder <paul.elder at ideasonboard.com>
---
Changes in v5:
- change the whole thing to turn on capabilities after they are all
confirmed, instead of disabling them as conditions are not met
Changes in v4:
- rebase on camera capabilities refactoring
- switch to std::set from std::map
- make hwlevel similar to capabilities
Changes in v3:
- fix some compiler errors
- go ahead and initialize the capabilities to true, update the commit
message accordingly
Changes in v2:
- add a flag for FULL, since there are a few requirements that are not
obtained from capabilities alone
- add burst capture capability, since that is required for FULL as well
---
src/android/camera_capabilities.cpp | 172 +++++++++++++++++++++++++---
src/android/camera_capabilities.h | 13 +++
2 files changed, 170 insertions(+), 15 deletions(-)
diff --git a/src/android/camera_capabilities.cpp b/src/android/camera_capabilities.cpp
index 9e2714f1..be55db88 100644
--- a/src/android/camera_capabilities.cpp
+++ b/src/android/camera_capabilities.cpp
@@ -9,6 +9,7 @@
#include <array>
#include <cmath>
+#include <map>
#include <hardware/camera3.h>
@@ -114,8 +115,148 @@ const std::map<int, const Camera3Format> camera3FormatsMap = {
},
};
+const std::map<camera_metadata_enum_android_info_supported_hardware_level, std::string>
+hwLevelStrings = {
+ { ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED, "LIMITED" },
+ { ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_FULL, "FULL" },
+ { ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY, "LEGACY" },
+ { ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_3, "LEVEL_3" },
+ { ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_EXTERNAL, "EXTERNAL" },
+};
+
} /* namespace */
+bool CameraCapabilities::validateManualSensorCapability(CameraMetadata *staticMetadata)
+{
+ camera_metadata_ro_entry_t entry;
+ bool found;
+
+ const char *noMode = "Manual sensor capability unavailable: ";
+
+ if (!(found = staticMetadata->entryContains<uint8_t>(ANDROID_CONTROL_AE_AVAILABLE_MODES,
+ ANDROID_CONTROL_AE_MODE_OFF))) {
+ LOG(HAL, Info)
+ << noMode << "missing AE mode off: "
+ << (found ? "not supported" : "not found");
+ return false;
+ }
+
+ found = staticMetadata->getEntry(ANDROID_CONTROL_AE_LOCK_AVAILABLE,
+ &entry);
+ if (!found || !(*entry.data.u8 == ANDROID_CONTROL_AE_LOCK_AVAILABLE_TRUE)) {
+ LOG(HAL, Info) << noMode << "missing AE lock";
+ return false;
+ }
+
+ return true;
+}
+
+bool CameraCapabilities::validateManualPostProcessingCapability(CameraMetadata *staticMetadata)
+{
+ camera_metadata_ro_entry_t entry;
+ bool found;
+
+ const char *noMode = "Manual post processing capability unavailable: ";
+
+ if (!staticMetadata->entryContains<uint8_t>(ANDROID_CONTROL_AWB_AVAILABLE_MODES,
+ ANDROID_CONTROL_AWB_MODE_OFF)) {
+ LOG(HAL, Info) << noMode << "missing AWB mode off";
+ return false;
+ }
+
+ found = staticMetadata->getEntry(ANDROID_CONTROL_AWB_LOCK_AVAILABLE,
+ &entry);
+ if (!found || !(*entry.data.u8 == ANDROID_CONTROL_AWB_LOCK_AVAILABLE_TRUE)) {
+ LOG(HAL, Info) << noMode << "missing AWB lock";
+ return false;
+ }
+
+ return true;
+}
+
+bool CameraCapabilities::validateBurstCaptureCapability(CameraMetadata *staticMetadata)
+{
+ camera_metadata_ro_entry_t entry;
+ bool found;
+
+ const char *noMode = "Burst capture capability unavailable: ";
+
+ found = staticMetadata->getEntry(ANDROID_CONTROL_AE_LOCK_AVAILABLE,
+ &entry);
+ if (!found || !(*entry.data.u8 == ANDROID_CONTROL_AE_LOCK_AVAILABLE_TRUE)) {
+ LOG(HAL, Info) << noMode << "missing AE lock";
+ return false;
+ }
+
+ found = staticMetadata->getEntry(ANDROID_CONTROL_AWB_LOCK_AVAILABLE,
+ &entry);
+ if (!found || !(*entry.data.u8 == ANDROID_CONTROL_AWB_LOCK_AVAILABLE_TRUE)) {
+ LOG(HAL, Info) << noMode << "missing AWB lock";
+ return false;
+ }
+
+ found = staticMetadata->getEntry(ANDROID_SYNC_MAX_LATENCY, &entry);
+ if (!found || *entry.data.i32 < 0 || 4 < *entry.data.i32) {
+ LOG(HAL, Info)
+ << noMode << "max sync latency is "
+ << (found ? std::to_string(*entry.data.i32) : "not present");
+ return false;
+ }
+
+ return true;
+}
+
+std::set<camera_metadata_enum_android_request_available_capabilities>
+CameraCapabilities::computeCapabilities(CameraMetadata *staticMetadata,
+ std::set<camera_metadata_enum_android_request_available_capabilities> &existingCaps)
+{
+ std::set<camera_metadata_enum_android_request_available_capabilities>
+ capabilities = existingCaps;
+
+ capabilities.insert(ANDROID_REQUEST_AVAILABLE_CAPABILITIES_BACKWARD_COMPATIBLE);
+
+ if (validateManualSensorCapability(staticMetadata))
+ capabilities.insert(ANDROID_REQUEST_AVAILABLE_CAPABILITIES_MANUAL_SENSOR);
+
+ if (validateManualPostProcessingCapability(staticMetadata))
+ capabilities.insert(ANDROID_REQUEST_AVAILABLE_CAPABILITIES_MANUAL_POST_PROCESSING);
+
+ if (validateBurstCaptureCapability(staticMetadata))
+ capabilities.insert(ANDROID_REQUEST_AVAILABLE_CAPABILITIES_BURST_CAPTURE);
+
+ if (rawStreamAvailable_)
+ capabilities.insert(ANDROID_REQUEST_AVAILABLE_CAPABILITIES_RAW);
+
+ return capabilities;
+}
+
+camera_metadata_enum_android_info_supported_hardware_level
+CameraCapabilities::computeHwLevel(CameraMetadata *staticMetadata,
+ std::set<camera_metadata_enum_android_request_available_capabilities> capabilities)
+{
+ camera_metadata_ro_entry_t entry;
+ bool found;
+ camera_metadata_enum_android_info_supported_hardware_level
+ hwLevel = ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_FULL;
+
+ if (!capabilities.count(ANDROID_REQUEST_AVAILABLE_CAPABILITIES_MANUAL_SENSOR))
+ hwLevel = ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED;
+
+ if (!capabilities.count(ANDROID_REQUEST_AVAILABLE_CAPABILITIES_MANUAL_POST_PROCESSING))
+ hwLevel = ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED;
+
+ if (!capabilities.count(ANDROID_REQUEST_AVAILABLE_CAPABILITIES_BURST_CAPTURE))
+ hwLevel = ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED;
+
+ found = staticMetadata->getEntry(ANDROID_SYNC_MAX_LATENCY, &entry);
+ if (!found || *entry.data.i32 != 0)
+ hwLevel = ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED;
+
+ hwLevel_ = hwLevel;
+
+ return hwLevel;
+}
+
int CameraCapabilities::initialize(std::shared_ptr<libcamera::Camera> camera,
int orientation, int facing)
{
@@ -382,6 +523,9 @@ int CameraCapabilities::initializeStaticMetadata()
const ControlInfoMap &controlsInfo = camera_->controls();
const ControlList &properties = camera_->properties();
+ std::set<camera_metadata_enum_android_request_available_capabilities>
+ capabilities = {};
+
/* Color correction static metadata. */
{
std::vector<uint8_t> data;
@@ -840,11 +984,6 @@ int CameraCapabilities::initializeStaticMetadata()
uint8_t croppingType = ANDROID_SCALER_CROPPING_TYPE_CENTER_ONLY;
staticMetadata_->addEntry(ANDROID_SCALER_CROPPING_TYPE, croppingType);
- /* Info static metadata. */
- uint8_t supportedHWLevel = ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED;
- staticMetadata_->addEntry(ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL,
- supportedHWLevel);
-
/* Request static metadata. */
int32_t partialResultCount = 1;
staticMetadata_->addEntry(ANDROID_REQUEST_PARTIAL_RESULT_COUNT,
@@ -865,21 +1004,24 @@ int CameraCapabilities::initializeStaticMetadata()
staticMetadata_->addEntry(ANDROID_REQUEST_MAX_NUM_INPUT_STREAMS,
maxNumInputStreams);
- std::vector<uint8_t> availableCapabilities = {
- ANDROID_REQUEST_AVAILABLE_CAPABILITIES_BACKWARD_COMPATIBLE,
- };
-
- /* Report if camera supports RAW. */
- if (rawStreamAvailable_)
- availableCapabilities.push_back(ANDROID_REQUEST_AVAILABLE_CAPABILITIES_RAW);
-
/* Number of { RAW, YUV, JPEG } supported output streams */
int32_t numOutStreams[] = { rawStreamAvailable_, 2, 1 };
staticMetadata_->addEntry(ANDROID_REQUEST_MAX_NUM_OUTPUT_STREAMS,
numOutStreams);
- staticMetadata_->addEntry(ANDROID_REQUEST_AVAILABLE_CAPABILITIES,
- availableCapabilities);
+ /* Check capabilities */
+ capabilities = computeCapabilities(staticMetadata_.get(), capabilities);
+ std::vector<camera_metadata_enum_android_request_available_capabilities>
+ capsVec = std::vector<camera_metadata_enum_android_request_available_capabilities>(capabilities.begin(), capabilities.end());
+ staticMetadata_->addEntry(ANDROID_REQUEST_AVAILABLE_CAPABILITIES, capsVec);
+
+ camera_metadata_enum_android_info_supported_hardware_level hwLevel =
+ computeHwLevel(staticMetadata_.get(), capabilities);
+ staticMetadata_->addEntry(ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL, hwLevel);
+
+ LOG(HAL, Info)
+ << "Hardware level: "
+ << hwLevelStrings.find((camera_metadata_enum_android_info_supported_hardware_level)hwLevel)->second;
std::vector<int32_t> availableCharacteristicsKeys = {
ANDROID_COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES,
diff --git a/src/android/camera_capabilities.h b/src/android/camera_capabilities.h
index 42a976d3..38ee97d0 100644
--- a/src/android/camera_capabilities.h
+++ b/src/android/camera_capabilities.h
@@ -42,6 +42,18 @@ private:
int androidFormat;
};
+ bool validateManualSensorCapability(CameraMetadata *staticMetadata);
+ bool validateManualPostProcessingCapability(CameraMetadata *staticMetadata);
+ bool validateBurstCaptureCapability(CameraMetadata *staticMetadata);
+
+ std::set<camera_metadata_enum_android_request_available_capabilities>
+ computeCapabilities(CameraMetadata *staticMetadata,
+ std::set<camera_metadata_enum_android_request_available_capabilities> &existingCaps);
+
+ camera_metadata_enum_android_info_supported_hardware_level
+ computeHwLevel(CameraMetadata *staticMetadata,
+ std::set<camera_metadata_enum_android_request_available_capabilities> capabilities);
+
std::vector<libcamera::Size>
initializeYUVResolutions(const libcamera::PixelFormat &pixelFormat,
const std::vector<libcamera::Size> &resolutions);
@@ -56,6 +68,7 @@ private:
int facing_;
int orientation_;
bool rawStreamAvailable_;
+ camera_metadata_enum_android_info_supported_hardware_level hwLevel_;
std::vector<Camera3StreamConfiguration> streamConfigurations_;
std::map<int, libcamera::PixelFormat> formatsMap_;
--
2.27.0
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