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      1 /*
      2  * Copyright (C) 2011 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 //#define LOG_NDEBUG 0
     18 #define LOG_TAG "ICameraRecordingProxy"
     19 #include <camera/ICameraRecordingProxy.h>
     20 #include <camera/ICameraRecordingProxyListener.h>
     21 #include <binder/IMemory.h>
     22 #include <binder/Parcel.h>
     23 #include <stdint.h>
     24 #include <utils/Log.h>
     25 
     26 namespace android {
     27 
     28 enum {
     29     START_RECORDING = IBinder::FIRST_CALL_TRANSACTION,
     30     STOP_RECORDING,
     31     RELEASE_RECORDING_FRAME,
     32 };
     33 
     34 
     35 class BpCameraRecordingProxy: public BpInterface<ICameraRecordingProxy>
     36 {
     37 public:
     38     BpCameraRecordingProxy(const sp<IBinder>& impl)
     39         : BpInterface<ICameraRecordingProxy>(impl)
     40     {
     41     }
     42 
     43     status_t startRecording(const sp<ICameraRecordingProxyListener>& listener)
     44     {
     45         ALOGV("startRecording");
     46         Parcel data, reply;
     47         data.writeInterfaceToken(ICameraRecordingProxy::getInterfaceDescriptor());
     48         data.writeStrongBinder(listener->asBinder());
     49         remote()->transact(START_RECORDING, data, &reply);
     50         return reply.readInt32();
     51     }
     52 
     53     void stopRecording()
     54     {
     55         ALOGV("stopRecording");
     56         Parcel data, reply;
     57         data.writeInterfaceToken(ICameraRecordingProxy::getInterfaceDescriptor());
     58         remote()->transact(STOP_RECORDING, data, &reply);
     59     }
     60 
     61     void releaseRecordingFrame(const sp<IMemory>& mem)
     62     {
     63         ALOGV("releaseRecordingFrame");
     64         Parcel data, reply;
     65         data.writeInterfaceToken(ICameraRecordingProxy::getInterfaceDescriptor());
     66         data.writeStrongBinder(mem->asBinder());
     67         remote()->transact(RELEASE_RECORDING_FRAME, data, &reply);
     68     }
     69 };
     70 
     71 IMPLEMENT_META_INTERFACE(CameraRecordingProxy, "android.hardware.ICameraRecordingProxy");
     72 
     73 // ----------------------------------------------------------------------
     74 
     75 status_t BnCameraRecordingProxy::onTransact(
     76     uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
     77 {
     78     switch(code) {
     79         case START_RECORDING: {
     80             ALOGV("START_RECORDING");
     81             CHECK_INTERFACE(ICameraRecordingProxy, data, reply);
     82             sp<ICameraRecordingProxyListener> listener =
     83                 interface_cast<ICameraRecordingProxyListener>(data.readStrongBinder());
     84             reply->writeInt32(startRecording(listener));
     85             return NO_ERROR;
     86         } break;
     87         case STOP_RECORDING: {
     88             ALOGV("STOP_RECORDING");
     89             CHECK_INTERFACE(ICameraRecordingProxy, data, reply);
     90             stopRecording();
     91             return NO_ERROR;
     92         } break;
     93         case RELEASE_RECORDING_FRAME: {
     94             ALOGV("RELEASE_RECORDING_FRAME");
     95             CHECK_INTERFACE(ICameraRecordingProxy, data, reply);
     96             sp<IMemory> mem = interface_cast<IMemory>(data.readStrongBinder());
     97             releaseRecordingFrame(mem);
     98             return NO_ERROR;
     99         } break;
    100 
    101         default:
    102             return BBinder::onTransact(code, data, reply, flags);
    103     }
    104 }
    105 
    106 // ----------------------------------------------------------------------------
    107 
    108 }; // namespace android
    109 
    110