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libcamera: android: Add face detection control support

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Allow Android HAL adapter to pass the face detection metadata control to
the pipeline and also send face detection metadata to the camera client
if the pipeline generates it.

Signed-off-by: Yudhistira Erlandinata <yerlandinata@chromium.org>
Co-developed-by: Harvey Yang <chenghaoyang@chromium.org>
Signed-off-by: Harvey Yang <chenghaoyang@chromium.org>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Harvey Yang <chenghaoyang@chromium.org>
This commit is contained in:
Harvey Yang
2024-09-25 08:12:26 +00:00
committed by Jacopo Mondi
parent dada914339
commit 3088e14e81
2 changed files with 104 additions and 6 deletions
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44
src/android/camera_capabilities.cpp
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@@ -11,6 +11,7 @@
#include <array>
#include <cmath>
#include <map>
#include <stdint.h>
#include <type_traits>
#include <hardware/camera3.h>
@@ -1176,11 +1177,46 @@ int CameraCapabilities::initializeStaticMetadata()
maxFrameDuration_);
/* Statistics static metadata. */
uint8_t faceDetectMode = ANDROID_STATISTICS_FACE_DETECT_MODE_OFF;
staticMetadata_->addEntry(ANDROID_STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES,
faceDetectMode);
int32_t maxFaceCount = 0;
auto iter = camera_->controls().find(controls::draft::FaceDetectMode.id());
if (iter != camera_->controls().end()) {
const ControlInfo &faceDetectCtrlInfo = iter->second;
std::vector<uint8_t> faceDetectModes;
bool hasFaceDetection = false;
for (const auto &value : faceDetectCtrlInfo.values()) {
int32_t mode = value.get<int32_t>();
uint8_t androidMode = 0;
switch (mode) {
case controls::draft::FaceDetectModeOff:
androidMode = ANDROID_STATISTICS_FACE_DETECT_MODE_OFF;
break;
case controls::draft::FaceDetectModeSimple:
androidMode = ANDROID_STATISTICS_FACE_DETECT_MODE_SIMPLE;
hasFaceDetection = true;
break;
default:
LOG(HAL, Fatal) << "Received invalid face detect mode: " << mode;
}
faceDetectModes.push_back(androidMode);
}
if (hasFaceDetection) {
/*
* \todo Create new libcamera controls to query max
* possible faces detected.
*/
maxFaceCount = 10;
staticMetadata_->addEntry(
ANDROID_STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES,
faceDetectModes.data(), faceDetectModes.size());
}
} else {
uint8_t faceDetectMode = ANDROID_STATISTICS_FACE_DETECT_MODE_OFF;
staticMetadata_->addEntry(ANDROID_STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES,
faceDetectMode);
}
staticMetadata_->addEntry(ANDROID_STATISTICS_INFO_MAX_FACE_COUNT,
maxFaceCount);