CaptureSequencer.h revision da6665cbd06ca58d3357c3002b7366d13e23f152
1da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala/* 2da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala * Copyright (C) 2012 The Android Open Source Project 3da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala * 4da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala * Licensed under the Apache License, Version 2.0 (the "License"); 5da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala * you may not use this file except in compliance with the License. 6da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala * You may obtain a copy of the License at 7da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala * 8da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala * http://www.apache.org/licenses/LICENSE-2.0 9da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala * 10da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala * Unless required by applicable law or agreed to in writing, software 11da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala * distributed under the License is distributed on an "AS IS" BASIS, 12da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala * See the License for the specific language governing permissions and 14da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala * limitations under the License. 15da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala */ 16da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 17da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala#ifndef ANDROID_SERVERS_CAMERA_CAMERA2_CAPTURESEQUENCER_H 18da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala#define ANDROID_SERVERS_CAMERA_CAMERA2_CAPTURESEQUENCER_H 19da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 20da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala#include <utils/Thread.h> 21da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala#include <utils/String16.h> 22da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala#include <utils/Vector.h> 23da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala#include <utils/Mutex.h> 24da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala#include <utils/Condition.h> 25da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala#include "CameraMetadata.h" 26da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala#include "Parameters.h" 27da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala#include "FrameProcessor.h" 28da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 29da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvalanamespace android { 30da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 31da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvalaclass Camera2Client; 32da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 33da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvalanamespace camera2 { 34da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 35da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvalaclass ZslProcessor; 36da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 37da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala/** 38da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala * Manages the still image capture process for 39da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala * zero-shutter-lag, regular, and video snapshots. 40da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala */ 41da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvalaclass CaptureSequencer: 42da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala virtual public Thread, 43da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala virtual public FrameProcessor::FilteredListener { 44da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala public: 45da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala CaptureSequencer(wp<Camera2Client> client); 46da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala ~CaptureSequencer(); 47da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 48da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala // Get reference to the ZslProcessor, which holds the ZSL buffers and frames 49da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala void setZslProcessor(wp<ZslProcessor> processor); 50da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 51da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala // Begin still image capture 52da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala status_t startCapture(); 53da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 54da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala // Notifications about AE state changes 55da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala void notifyAutoExposure(uint8_t newState, int triggerId); 56da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 57da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala // Notifications from the frame processor 58da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala virtual void onFrameAvailable(int32_t frameId, CameraMetadata &frame); 59da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 60da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala // Notifications from the capture processor 61da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala void onCaptureAvailable(nsecs_t timestamp); 62da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 63da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala void dump(int fd, const Vector<String16>& args); 64da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 65da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala private: 66da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala /** 67da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala * Accessed by other threads 68da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala */ 69da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala Mutex mInputMutex; 70da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 71da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala bool mStartCapture; 72da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala bool mBusy; 73da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala Condition mStartCaptureSignal; 74da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 75da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala bool mNewAEState; 76da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala uint8_t mAEState; 77da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala int mAETriggerId; 78da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala Condition mNewNotifySignal; 79da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 80da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala bool mNewFrameReceived; 81da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala int32_t mNewFrameId; 82da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala CameraMetadata mNewFrame; 83da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala Condition mNewFrameSignal; 84da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 85da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala bool mNewCaptureReceived; 86da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala nsecs_t mCaptureTimestamp; 87da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala Condition mNewCaptureSignal; 88da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 89da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala /** 90da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala * Internal to CaptureSequencer 91da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala */ 92da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala static const nsecs_t kWaitDuration = 100000000; // 100 ms 93da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala static const int kMaxTimeoutsForPrecaptureStart = 2; // 200 ms 94da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala static const int kMaxTimeoutsForPrecaptureEnd = 10; // 1 sec 95da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala static const int kMaxTimeoutsForCaptureEnd = 20; // 2 sec 96da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 97da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala wp<Camera2Client> mClient; 98da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala wp<ZslProcessor> mZslProcessor; 99da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 100da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala enum CaptureState { 101da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala IDLE, 102da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala START, 103da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala ZSL_START, 104da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala ZSL_WAITING, 105da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala ZSL_REPROCESSING, 106da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala STANDARD_START, 107da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala STANDARD_PRECAPTURE_WAIT, 108da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala STANDARD_CAPTURE, 109da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala STANDARD_CAPTURE_WAIT, 110da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala DONE, 111da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala ERROR, 112da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala NUM_CAPTURE_STATES 113da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala } mCaptureState; 114da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala static const char* kStateNames[]; 115da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 116da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala typedef CaptureState (CaptureSequencer::*StateManager)(sp<Camera2Client> &client); 117da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala static const StateManager kStateManagers[]; 118da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 119da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala CameraMetadata mCaptureRequest; 120da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 121da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala int mTriggerId; 122da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala int mTimeoutCount; 123da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala bool mAeInPrecapture; 124da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 125da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala int32_t mCaptureId; 126da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 127da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala // Main internal methods 128da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 129da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala virtual bool threadLoop(); 130da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 131da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala CaptureState manageIdle(sp<Camera2Client> &client); 132da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala CaptureState manageStart(sp<Camera2Client> &client); 133da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 134da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala CaptureState manageZslStart(sp<Camera2Client> &client); 135da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala CaptureState manageZslWaiting(sp<Camera2Client> &client); 136da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala CaptureState manageZslReprocessing(sp<Camera2Client> &client); 137da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 138da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala CaptureState manageStandardStart(sp<Camera2Client> &client); 139da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala CaptureState manageStandardPrecaptureWait(sp<Camera2Client> &client); 140da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala CaptureState manageStandardCapture(sp<Camera2Client> &client); 141da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala CaptureState manageStandardCaptureWait(sp<Camera2Client> &client); 142da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 143da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala CaptureState manageDone(sp<Camera2Client> &client); 144da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 145da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala // Utility methods 146da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 147da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala status_t updateCaptureRequest(const Parameters ¶ms, 148da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala sp<Camera2Client> &client); 149da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala}; 150da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 151da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala}; // namespace camera2 152da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala}; // namespace android 153da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala 154da6665cbd06ca58d3357c3002b7366d13e23f152Eino-Ville Talvala#endif 155