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      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 <surfaceflinger/ISurface.h>
     24 #include <binder/IMemory.h>
     25 #include <utils/String8.h>
     26 #include <camera/Camera.h>
     27 
     28 namespace android {
     29 
     30 class ICameraClient;
     31 
     32 class ICamera: public IInterface
     33 {
     34 public:
     35     DECLARE_META_INTERFACE(Camera);
     36 
     37     virtual void            disconnect() = 0;
     38 
     39     // connect new client with existing camera remote
     40     virtual status_t        connect(const sp<ICameraClient>& client) = 0;
     41 
     42     // prevent other processes from using this ICamera interface
     43     virtual status_t        lock() = 0;
     44 
     45     // allow other processes to use this ICamera interface
     46     virtual status_t        unlock() = 0;
     47 
     48     // pass the buffered ISurface to the camera service
     49     virtual status_t        setPreviewDisplay(const sp<ISurface>& surface) = 0;
     50 
     51     // set the preview callback flag to affect how the received frames from
     52     // preview are handled.
     53     virtual void            setPreviewCallbackFlag(int flag) = 0;
     54 
     55     // start preview mode, must call setPreviewDisplay first
     56     virtual status_t        startPreview() = 0;
     57 
     58     // stop preview mode
     59     virtual void            stopPreview() = 0;
     60 
     61     // get preview state
     62     virtual bool            previewEnabled() = 0;
     63 
     64     // start recording mode
     65     virtual status_t        startRecording() = 0;
     66 
     67     // stop recording mode
     68     virtual void            stopRecording() = 0;
     69 
     70     // get recording state
     71     virtual bool            recordingEnabled() = 0;
     72 
     73     // release a recording frame
     74     virtual void            releaseRecordingFrame(const sp<IMemory>& mem) = 0;
     75 
     76     // auto focus
     77     virtual status_t        autoFocus() = 0;
     78 
     79     // cancel auto focus
     80     virtual status_t        cancelAutoFocus() = 0;
     81 
     82     // take a picture
     83     virtual status_t        takePicture() = 0;
     84 
     85     // set preview/capture parameters - key/value pairs
     86     virtual status_t        setParameters(const String8& params) = 0;
     87 
     88     // get preview/capture parameters - key/value pairs
     89     virtual String8         getParameters() const = 0;
     90 
     91     // send command to camera driver
     92     virtual status_t        sendCommand(int32_t cmd, int32_t arg1, int32_t arg2) = 0;
     93 };
     94 
     95 // ----------------------------------------------------------------------------
     96 
     97 class BnCamera: public BnInterface<ICamera>
     98 {
     99 public:
    100     virtual status_t    onTransact( uint32_t code,
    101                                     const Parcel& data,
    102                                     Parcel* reply,
    103                                     uint32_t flags = 0);
    104 };
    105 
    106 }; // namespace android
    107 
    108 #endif
    109