Camera2Client.h revision 7b82efe7a376c882f8f938e1c41b8311a8cdda4a 
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        setPreviewDisplay(const sp<Surface>& surface);
61    virtual status_t        setPreviewTexture(
62        const sp<IGraphicBufferProducer>& bufferProducer);
63    virtual void            setPreviewCallbackFlag(int flag);
64    virtual status_t        setPreviewCallbackTarget(
65        const sp<IGraphicBufferProducer>& callbackProducer);
66
67    virtual status_t        startPreview();
68    virtual void            stopPreview();
69    virtual bool            previewEnabled();
70    virtual status_t        storeMetaDataInBuffers(bool enabled);
71    virtual status_t        startRecording();
72    virtual void            stopRecording();
73    virtual bool            recordingEnabled();
74    virtual void            releaseRecordingFrame(const sp<IMemory>& mem);
75    virtual status_t        autoFocus();
76    virtual status_t        cancelAutoFocus();
77    virtual status_t        takePicture(int msgType);
78    virtual status_t        setParameters(const String8& params);
79    virtual String8         getParameters() const;
80    virtual status_t        sendCommand(int32_t cmd, int32_t arg1, int32_t arg2);
81
82    /**
83     * Interface used by CameraService
84     */
85
86    Camera2Client(const sp<CameraService>& cameraService,
87            const sp<ICameraClient>& cameraClient,
88            const String16& clientPackageName,
89            int cameraId,
90            int cameraFacing,
91            int clientPid,
92            uid_t clientUid,
93            int servicePid,
94            int deviceVersion);
95
96    virtual ~Camera2Client();
97
98    status_t initialize(camera_module_t *module);
99
100    virtual status_t dump(int fd, const Vector<String16>& args);
101
102    /**
103     * Interface used by CameraDeviceBase
104     */
105
106    virtual void notifyAutoFocus(uint8_t newState, int triggerId);
107    virtual void notifyAutoExposure(uint8_t newState, int triggerId);
108
109    /**
110     * Interface used by independent components of Camera2Client.
111     */
112
113    camera2::SharedParameters& getParameters();
114
115    int getPreviewStreamId() const;
116    int getCaptureStreamId() const;
117    int getCallbackStreamId() const;
118    int getRecordingStreamId() const;
119    int getZslStreamId() const;
120
121    status_t registerFrameListener(int32_t minId, int32_t maxId,
122            wp<camera2::FrameProcessor::FilteredListener> listener);
123    status_t removeFrameListener(int32_t minId, int32_t maxId,
124            wp<camera2::FrameProcessor::FilteredListener> listener);
125
126    status_t stopStream();
127
128    static size_t calculateBufferSize(int width, int height,
129            int format, int stride);
130
131    static const int32_t kPreviewRequestIdStart = 10000000;
132    static const int32_t kPreviewRequestIdEnd   = 20000000;
133
134    static const int32_t kRecordingRequestIdStart  = 20000000;
135    static const int32_t kRecordingRequestIdEnd    = 30000000;
136
137    static const int32_t kCaptureRequestIdStart = 30000000;
138    static const int32_t kCaptureRequestIdEnd   = 40000000;
139
140private:
141    /** ICamera interface-related private members */
142    typedef camera2::Parameters Parameters;
143
144    status_t setPreviewWindowL(const sp<IBinder>& binder,
145            sp<ANativeWindow> window);
146    status_t startPreviewL(Parameters &params, bool restart);
147    void     stopPreviewL();
148    status_t startRecordingL(Parameters &params, bool restart);
149    bool     recordingEnabledL();
150
151    // Individual commands for sendCommand()
152    status_t commandStartSmoothZoomL();
153    status_t commandStopSmoothZoomL();
154    status_t commandSetDisplayOrientationL(int degrees);
155    status_t commandEnableShutterSoundL(bool enable);
156    status_t commandPlayRecordingSoundL();
157    status_t commandStartFaceDetectionL(int type);
158    status_t commandStopFaceDetectionL(Parameters &params);
159    status_t commandEnableFocusMoveMsgL(bool enable);
160    status_t commandPingL();
161    status_t commandSetVideoBufferCountL(size_t count);
162
163    // Current camera device configuration
164    camera2::SharedParameters mParameters;
165
166    /** Camera device-related private members */
167
168    void     setPreviewCallbackFlagL(Parameters &params, int flag);
169    status_t updateRequests(Parameters &params);
170    int mDeviceVersion;
171
172    // Used with stream IDs
173    static const int NO_STREAM = -1;
174
175    template <typename ProcessorT>
176    status_t updateProcessorStream(sp<ProcessorT> processor, Parameters params);
177    template <typename ProcessorT,
178              status_t (ProcessorT::*updateStreamF)(const Parameters &)>
179    status_t updateProcessorStream(sp<ProcessorT> processor, Parameters params);
180
181    sp<camera2::FrameProcessor> mFrameProcessor;
182
183    /* Preview/Recording related members */
184
185    sp<IBinder> mPreviewSurface;
186    sp<camera2::StreamingProcessor> mStreamingProcessor;
187
188    /** Preview callback related members */
189
190    sp<camera2::CallbackProcessor> mCallbackProcessor;
191
192    /* Still image capture related members */
193
194    sp<camera2::CaptureSequencer> mCaptureSequencer;
195    sp<camera2::JpegProcessor> mJpegProcessor;
196    sp<camera2::ZslProcessorInterface> mZslProcessor;
197    sp<Thread> mZslProcessorThread;
198
199    /** Notification-related members */
200
201    bool mAfInMotion;
202
203    /** Utility members */
204
205    // Wait until the camera device has received the latest control settings
206    status_t syncWithDevice();
207};
208
209}; // namespace android
210
211#endif
212