ICamera.h revision 99617adda9bc46c43f511f0940bc735c73de61de 
1/*
2 * Copyright (C) 2008 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_HARDWARE_ICAMERA_H
18#define ANDROID_HARDWARE_ICAMERA_H
19
20#include <utils/RefBase.h>
21#include <binder/IInterface.h>
22#include <binder/Parcel.h>
23#include <binder/IMemory.h>
24#include <utils/String8.h>
25#include <camera/Camera.h>
26
27namespace android {
28
29class ICameraClient;
30class IGraphicBufferProducer;
31class Surface;
32
33class ICamera: public IInterface
34{
35public:
36    DECLARE_META_INTERFACE(Camera);
37
38    virtual void            disconnect() = 0;
39
40    // connect new client with existing camera remote
41    virtual status_t        connect(const sp<ICameraClient>& client) = 0;
42
43    // prevent other processes from using this ICamera interface
44    virtual status_t        lock() = 0;
45
46    // allow other processes to use this ICamera interface
47    virtual status_t        unlock() = 0;
48
49    // pass the buffered IGraphicBufferProducer to the camera service
50    virtual status_t        setPreviewTexture(
51            const sp<IGraphicBufferProducer>& bufferProducer) = 0;
52
53    // set the preview callback flag to affect how the received frames from
54    // preview are handled.
55    virtual void            setPreviewCallbackFlag(int flag) = 0;
56
57    // start preview mode, must call setPreviewDisplay first
58    virtual status_t        startPreview() = 0;
59
60    // stop preview mode
61    virtual void            stopPreview() = 0;
62
63    // get preview state
64    virtual bool            previewEnabled() = 0;
65
66    // start recording mode
67    virtual status_t        startRecording() = 0;
68
69    // stop recording mode
70    virtual void            stopRecording() = 0;
71
72    // get recording state
73    virtual bool            recordingEnabled() = 0;
74
75    // release a recording frame
76    virtual void            releaseRecordingFrame(const sp<IMemory>& mem) = 0;
77
78    // auto focus
79    virtual status_t        autoFocus() = 0;
80
81    // cancel auto focus
82    virtual status_t        cancelAutoFocus() = 0;
83
84    /*
85     * take a picture.
86     * @param msgType the message type an application selectively turn on/off
87     * on a photo-by-photo basis. The supported message types are:
88     * CAMERA_MSG_SHUTTER, CAMERA_MSG_RAW_IMAGE, CAMERA_MSG_COMPRESSED_IMAGE,
89     * and CAMERA_MSG_POSTVIEW_FRAME. Any other message types will be ignored.
90     */
91    virtual status_t        takePicture(int msgType) = 0;
92
93    // set preview/capture parameters - key/value pairs
94    virtual status_t        setParameters(const String8& params) = 0;
95
96    // get preview/capture parameters - key/value pairs
97    virtual String8         getParameters() const = 0;
98
99    // send command to camera driver
100    virtual status_t        sendCommand(int32_t cmd, int32_t arg1, int32_t arg2) = 0;
101
102    // tell the camera hal to store meta data or real YUV data in video buffers.
103    virtual status_t        storeMetaDataInBuffers(bool enabled) = 0;
104};
105
106// ----------------------------------------------------------------------------
107
108class BnCamera: public BnInterface<ICamera>
109{
110public:
111    virtual status_t    onTransact( uint32_t code,
112                                    const Parcel& data,
113                                    Parcel* reply,
114                                    uint32_t flags = 0);
115};
116
117}; // namespace android
118
119#endif
120