Camera2Client.h revision 355d9c6b74cd22a88fc7d1c9ba2e928ba566c69e 
1/*
2 * Copyright (C) 2012 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef ANDROID_SERVERS_CAMERA_CAMERA2CLIENT_H
18#define ANDROID_SERVERS_CAMERA_CAMERA2CLIENT_H
19
20#include "CameraService.h"
21#include "common/CameraDeviceBase.h"
22#include "common/Camera2ClientBase.h"
23#include "api1/client2/Parameters.h"
24#include "api1/client2/FrameProcessor.h"
25//#include "api1/client2/StreamingProcessor.h"
26//#include "api1/client2/JpegProcessor.h"
27//#include "api1/client2/ZslProcessorInterface.h"
28//#include "api1/client2/CaptureSequencer.h"
29//#include "api1/client2/CallbackProcessor.h"
30
31namespace android {
32
33namespace camera2 {
34
35class StreamingProcessor;
36class JpegProcessor;
37class ZslProcessorInterface;
38class CaptureSequencer;
39class CallbackProcessor;
40
41}
42
43class IMemory;
44/**
45 * Interface between android.hardware.Camera API and Camera HAL device for versions
46 * CAMERA_DEVICE_API_VERSION_2_0 and 3_0.
47 */
48class Camera2Client :
49        public Camera2ClientBase<CameraService::Client>
50{
51public:
52    /**
53     * ICamera interface (see ICamera for details)
54     */
55
56    virtual void            disconnect();
57    virtual status_t        connect(const sp<ICameraClient>& client);
58    virtual status_t        lock();
59    virtual status_t        unlock();
60    virtual status_t        setPreviewTarget(
61        const sp<IGraphicBufferProducer>& bufferProducer);
62    virtual void            setPreviewCallbackFlag(int flag);
63    virtual status_t        setPreviewCallbackTarget(
64        const sp<IGraphicBufferProducer>& callbackProducer);
65
66    virtual status_t        startPreview();
67    virtual void            stopPreview();
68    virtual bool            previewEnabled();
69    virtual status_t        storeMetaDataInBuffers(bool enabled);
70    virtual status_t        startRecording();
71    virtual void            stopRecording();
72    virtual bool            recordingEnabled();
73    virtual void            releaseRecordingFrame(const sp<IMemory>& mem);
74    virtual status_t        autoFocus();
75    virtual status_t        cancelAutoFocus();
76    virtual status_t        takePicture(int msgType);
77    virtual status_t        setParameters(const String8& params);
78    virtual String8         getParameters() const;
79    virtual status_t        sendCommand(int32_t cmd, int32_t arg1, int32_t arg2);
80    virtual void            notifyError(ICameraDeviceCallbacks::CameraErrorCode errorCode,
81                                        const CaptureResultExtras& resultExtras);
82
83    /**
84     * Interface used by CameraService
85     */
86
87    Camera2Client(const sp<CameraService>& cameraService,
88            const sp<ICameraClient>& cameraClient,
89            const String16& clientPackageName,
90            int cameraId,
91            int cameraFacing,
92            int clientPid,
93            uid_t clientUid,
94            int servicePid,
95            bool legacyMode);
96
97    virtual ~Camera2Client();
98
99    status_t initialize(CameraModule *module);
100
101    virtual status_t dump(int fd, const Vector<String16>& args);
102
103    /**
104     * Interface used by CameraDeviceBase
105     */
106
107    virtual void notifyAutoFocus(uint8_t newState, int triggerId);
108    virtual void notifyAutoExposure(uint8_t newState, int triggerId);
109    virtual void notifyShutter(const CaptureResultExtras& resultExtras,
110                               nsecs_t timestamp);
111
112    /**
113     * Interface used by independent components of Camera2Client.
114     */
115
116    camera2::SharedParameters& getParameters();
117
118    int getPreviewStreamId() const;
119    int getCaptureStreamId() const;
120    int getCallbackStreamId() const;
121    int getRecordingStreamId() const;
122    int getZslStreamId() const;
123
124    status_t registerFrameListener(int32_t minId, int32_t maxId,
125            wp<camera2::FrameProcessor::FilteredListener> listener,
126            bool sendPartials = true);
127    status_t removeFrameListener(int32_t minId, int32_t maxId,
128            wp<camera2::FrameProcessor::FilteredListener> listener);
129
130    status_t stopStream();
131
132    // For the slowJpegMode to create jpeg stream when precapture sequence is done
133    status_t createJpegStreamL(camera2::Parameters &params);
134
135    static size_t calculateBufferSize(int width, int height,
136            int format, int stride);
137
138    static const int32_t kPreviewRequestIdStart = 10000000;
139    static const int32_t kPreviewRequestIdEnd   = 20000000;
140
141    static const int32_t kRecordingRequestIdStart  = 20000000;
142    static const int32_t kRecordingRequestIdEnd    = 30000000;
143
144    static const int32_t kCaptureRequestIdStart = 30000000;
145    static const int32_t kCaptureRequestIdEnd   = 40000000;
146
147    // Constant strings for ATRACE logging
148    static const char* kAutofocusLabel;
149    static const char* kTakepictureLabel;
150
151    // Used with stream IDs
152    static const int NO_STREAM = -1;
153
154private:
155    /** ICamera interface-related private members */
156    typedef camera2::Parameters Parameters;
157
158    status_t setPreviewWindowL(const sp<IBinder>& binder,
159            sp<Surface> window);
160    status_t startPreviewL(Parameters &params, bool restart);
161    void     stopPreviewL();
162    status_t startRecordingL(Parameters &params, bool restart);
163    bool     recordingEnabledL();
164
165    // Individual commands for sendCommand()
166    status_t commandStartSmoothZoomL();
167    status_t commandStopSmoothZoomL();
168    status_t commandSetDisplayOrientationL(int degrees);
169    status_t commandEnableShutterSoundL(bool enable);
170    status_t commandPlayRecordingSoundL();
171    status_t commandStartFaceDetectionL(int type);
172    status_t commandStopFaceDetectionL(Parameters &params);
173    status_t commandEnableFocusMoveMsgL(bool enable);
174    status_t commandPingL();
175    status_t commandSetVideoBufferCountL(size_t count);
176    status_t commandSetVideoFormatL(int format, android_dataspace dataSpace);
177
178    // Current camera device configuration
179    camera2::SharedParameters mParameters;
180
181    /** Camera device-related private members */
182
183    void     setPreviewCallbackFlagL(Parameters &params, int flag);
184    status_t updateRequests(Parameters &params);
185
186    template <typename ProcessorT>
187    status_t updateProcessorStream(sp<ProcessorT> processor, Parameters params);
188    template <typename ProcessorT,
189              status_t (ProcessorT::*updateStreamF)(const Parameters &)>
190    status_t updateProcessorStream(sp<ProcessorT> processor, Parameters params);
191
192    sp<camera2::FrameProcessor> mFrameProcessor;
193
194    /* Preview/Recording related members */
195
196    sp<IBinder> mPreviewSurface;
197    sp<camera2::StreamingProcessor> mStreamingProcessor;
198
199    /** Preview callback related members */
200
201    sp<camera2::CallbackProcessor> mCallbackProcessor;
202
203    /* Still image capture related members */
204
205    sp<camera2::CaptureSequencer> mCaptureSequencer;
206    sp<camera2::JpegProcessor> mJpegProcessor;
207    sp<camera2::ZslProcessorInterface> mZslProcessor;
208    sp<Thread> mZslProcessorThread;
209
210    /** Notification-related members */
211
212    bool mAfInMotion;
213
214    /** Utility members */
215    bool mLegacyMode;
216
217    // Wait until the camera device has received the latest control settings
218    status_t syncWithDevice();
219
220    // Video snapshot jpeg size overriding helper function
221    status_t overrideVideoSnapshotSize(Parameters &params);
222};
223
224}; // namespace android
225
226#endif
227