/*
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* Copyright (C) 2012 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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#ifndef ANDROID_SERVERS_CAMERA_CAMERA2_FRAMEPROCESSOR_H
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#define ANDROID_SERVERS_CAMERA_CAMERA2_FRAMEPROCESSOR_H
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#include <utils/Thread.h>
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#include <utils/String16.h>
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#include <utils/Vector.h>
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#include <utils/KeyedVector.h>
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#include <utils/List.h>
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#include <camera/CameraMetadata.h>
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#include "common/FrameProcessorBase.h"
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struct camera_frame_metadata;
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namespace android {
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class Camera2Client;
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namespace camera2 {
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/* Output frame metadata processing thread. This thread waits for new
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* frames from the device, and analyzes them as necessary.
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*/
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class FrameProcessor : public FrameProcessorBase {
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public:
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FrameProcessor(wp<CameraDeviceBase> device, sp<Camera2Client> client);
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~FrameProcessor();
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private:
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static const int32_t NOT_SET = -1;
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wp<Camera2Client> mClient;
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bool mSynthesize3ANotify;
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int mLastFrameNumberOfFaces;
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void processNewFrames(const sp<Camera2Client> &client);
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virtual bool processSingleFrame(CaptureResult &frame,
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const sp<CameraDeviceBase> &device);
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status_t processFaceDetect(const CameraMetadata &frame,
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const sp<Camera2Client> &client);
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// Send 3A state change notifications to client based on frame metadata
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status_t process3aState(const CaptureResult &frame,
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const sp<Camera2Client> &client);
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// Helper for process3aState
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template<typename Src, typename T>
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bool updatePendingState(const CameraMetadata& result, int32_t tag, T* value,
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int32_t frameNumber, int cameraId);
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struct AlgState {
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// TODO: also track AE mode
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camera_metadata_enum_android_control_af_mode afMode;
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camera_metadata_enum_android_control_awb_mode awbMode;
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camera_metadata_enum_android_control_ae_state aeState;
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camera_metadata_enum_android_control_af_state afState;
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camera_metadata_enum_android_control_awb_state awbState;
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int32_t afTriggerId;
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int32_t aeTriggerId;
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// These defaults need to match those in Parameters.cpp
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AlgState() :
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afMode((camera_metadata_enum_android_control_af_mode)NOT_SET),
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awbMode((camera_metadata_enum_android_control_awb_mode)NOT_SET),
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aeState((camera_metadata_enum_android_control_ae_state)NOT_SET),
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afState((camera_metadata_enum_android_control_af_state)NOT_SET),
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awbState((camera_metadata_enum_android_control_awb_state)NOT_SET),
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afTriggerId(NOT_SET),
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aeTriggerId(NOT_SET) {
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}
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};
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AlgState m3aState;
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// frame number -> pending 3A states that not all data are received yet.
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KeyedVector<int32_t, AlgState> mPending3AStates;
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// Whether the partial result is enabled for this device
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bool mUsePartialResult;
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// Track most recent frame number for which 3A notifications were sent for.
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// Used to filter against sending 3A notifications for the same frame
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// several times.
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int32_t mLast3AFrameNumber, mLastAEFrameNumber, mLastAFrameNumber, mLastAWBFrameNumber;
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// Emit FaceDetection event to java if faces changed
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void callbackFaceDetection(const sp<Camera2Client>& client,
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const camera_frame_metadata &metadata);
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};
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}; //namespace camera2
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}; //namespace android
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#endif
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