From 3088e14e814eb3bb25103de8f5402ef6b0211689 Mon Sep 17 00:00:00 2001 From: Harvey Yang Date: Wed, 25 Sep 2024 08:12:26 +0000 Subject: libcamera: android: Add face detection control support 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 Co-developed-by: Harvey Yang Signed-off-by: Harvey Yang Reviewed-by: Jacopo Mondi Signed-off-by: Jacopo Mondi Reviewed-by: Harvey Yang --- src/android/camera_device.cpp | 66 +++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 64 insertions(+), 2 deletions(-) (limited to 'src/android/camera_device.cpp') diff --git a/src/android/camera_device.cpp b/src/android/camera_device.cpp index 493f66e7..a038131a 100644 --- a/src/android/camera_device.cpp +++ b/src/android/camera_device.cpp @@ -22,6 +22,7 @@ #include #include #include +#include #include #include "system/graphics.h" @@ -813,6 +814,11 @@ int CameraDevice::processControls(Camera3RequestDescriptor *descriptor) controls.set(controls::ScalerCrop, cropRegion); } + if (settings.getEntry(ANDROID_STATISTICS_FACE_DETECT_MODE, &entry)) { + const uint8_t *data = entry.data.u8; + controls.set(controls::draft::FaceDetectMode, data[0]); + } + if (settings.getEntry(ANDROID_SENSOR_TEST_PATTERN_MODE, &entry)) { const int32_t data = *entry.data.i32; int32_t testPatternMode = controls::draft::TestPatternModeOff; @@ -1540,8 +1546,9 @@ CameraDevice::getResultMetadata(const Camera3RequestDescriptor &descriptor) cons value32 = ANDROID_SENSOR_TEST_PATTERN_MODE_OFF; resultMetadata->addEntry(ANDROID_SENSOR_TEST_PATTERN_MODE, value32); - value = ANDROID_STATISTICS_FACE_DETECT_MODE_OFF; - resultMetadata->addEntry(ANDROID_STATISTICS_FACE_DETECT_MODE, value); + if (settings.getEntry(ANDROID_STATISTICS_FACE_DETECT_MODE, &entry)) + resultMetadata->addEntry(ANDROID_STATISTICS_FACE_DETECT_MODE, + entry.data.u8, 1); value = ANDROID_STATISTICS_LENS_SHADING_MAP_MODE_OFF; resultMetadata->addEntry(ANDROID_STATISTICS_LENS_SHADING_MAP_MODE, @@ -1580,6 +1587,61 @@ CameraDevice::getResultMetadata(const Camera3RequestDescriptor &descriptor) cons resultMetadata->addEntry(ANDROID_SENSOR_FRAME_DURATION, *frameDuration * 1000); + const auto &faceDetectRectangles = + metadata.get(controls::draft::FaceDetectFaceRectangles); + if (faceDetectRectangles) { + std::vector flatRectangles; + for (const Rectangle &rect : *faceDetectRectangles) { + flatRectangles.push_back(rect.x); + flatRectangles.push_back(rect.y); + flatRectangles.push_back(rect.x + rect.width); + flatRectangles.push_back(rect.y + rect.height); + } + resultMetadata->addEntry( + ANDROID_STATISTICS_FACE_RECTANGLES, flatRectangles); + } + + const auto &faceDetectFaceScores = + metadata.get(controls::draft::FaceDetectFaceScores); + if (faceDetectRectangles && faceDetectFaceScores) { + if (faceDetectFaceScores->size() != faceDetectRectangles->size()) { + LOG(HAL, Error) << "Pipeline returned wrong number of face scores; " + << "Expected: " << faceDetectRectangles->size() + << ", got: " << faceDetectFaceScores->size(); + } + resultMetadata->addEntry(ANDROID_STATISTICS_FACE_SCORES, + *faceDetectFaceScores); + } + + const auto &faceDetectFaceLandmarks = + metadata.get(controls::draft::FaceDetectFaceLandmarks); + if (faceDetectRectangles && faceDetectFaceLandmarks) { + size_t expectedLandmarks = faceDetectRectangles->size() * 3; + if (faceDetectFaceLandmarks->size() != expectedLandmarks) { + LOG(HAL, Error) << "Pipeline returned wrong number of face landmarks; " + << "Expected: " << expectedLandmarks + << ", got: " << faceDetectFaceLandmarks->size(); + } + + std::vector androidLandmarks; + for (const Point &landmark : *faceDetectFaceLandmarks) { + androidLandmarks.push_back(landmark.x); + androidLandmarks.push_back(landmark.y); + } + resultMetadata->addEntry( + ANDROID_STATISTICS_FACE_LANDMARKS, androidLandmarks); + } + + const auto &faceDetectFaceIds = metadata.get(controls::draft::FaceDetectFaceIds); + if (faceDetectRectangles && faceDetectFaceIds) { + if (faceDetectFaceIds->size() != faceDetectRectangles->size()) { + LOG(HAL, Error) << "Pipeline returned wrong number of face ids; " + << "Expected: " << faceDetectRectangles->size() + << ", got: " << faceDetectFaceIds->size(); + } + resultMetadata->addEntry(ANDROID_STATISTICS_FACE_IDS, *faceDetectFaceIds); + } + const auto &scalerCrop = metadata.get(controls::ScalerCrop); if (scalerCrop) { const Rectangle &crop = *scalerCrop; -- cgit v1.2.1