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      1 /*
      2 **
      3 ** Copyright 2015, The Android Open Source Project
      4 **
      5 ** Licensed under the Apache License, Version 2.0 (the "License");
      6 ** you may not use this file except in compliance with the License.
      7 ** You may obtain a copy of the License at
      8 **
      9 **     http://www.apache.org/licenses/LICENSE-2.0
     10 **
     11 ** Unless required by applicable law or agreed to in writing, software
     12 ** distributed under the License is distributed on an "AS IS" BASIS,
     13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14 ** See the License for the specific language governing permissions and
     15 ** limitations under the License.
     16 */
     17 
     18 #define LOG_TAG "IMediaCodecService"
     19 //#define LOG_NDEBUG 0
     20 
     21 #include <utils/Log.h>
     22 #include <stdint.h>
     23 #include <sys/types.h>
     24 #include <binder/Parcel.h>
     25 #include <media/IMediaCodecService.h>
     26 
     27 namespace android {
     28 
     29 enum {
     30     GET_OMX = IBinder::FIRST_CALL_TRANSACTION,
     31     GET_OMX_STORE
     32 };
     33 
     34 class BpMediaCodecService : public BpInterface<IMediaCodecService>
     35 {
     36 public:
     37     explicit BpMediaCodecService(const sp<IBinder>& impl)
     38         : BpInterface<IMediaCodecService>(impl)
     39     {
     40     }
     41 
     42     virtual sp<IOMX> getOMX() {
     43         Parcel data, reply;
     44         data.writeInterfaceToken(IMediaCodecService::getInterfaceDescriptor());
     45         remote()->transact(GET_OMX, data, &reply);
     46         return interface_cast<IOMX>(reply.readStrongBinder());
     47     }
     48 
     49     virtual sp<IOMXStore> getOMXStore() {
     50         Parcel data, reply;
     51         data.writeInterfaceToken(IMediaCodecService::getInterfaceDescriptor());
     52         remote()->transact(GET_OMX_STORE, data, &reply);
     53         return interface_cast<IOMXStore>(reply.readStrongBinder());
     54     }
     55 
     56 };
     57 
     58 IMPLEMENT_META_INTERFACE(MediaCodecService, "android.media.IMediaCodecService");
     59 
     60 // ----------------------------------------------------------------------
     61 
     62 status_t BnMediaCodecService::onTransact(
     63     uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
     64 {
     65     switch (code) {
     66 
     67         case GET_OMX: {
     68             CHECK_INTERFACE(IMediaCodecService, data, reply);
     69             sp<IOMX> omx = getOMX();
     70             reply->writeStrongBinder(IInterface::asBinder(omx));
     71             return NO_ERROR;
     72         }
     73         case GET_OMX_STORE: {
     74             CHECK_INTERFACE(IMediaCodecService, data, reply);
     75             sp<IOMXStore> omxStore = getOMXStore();
     76             reply->writeStrongBinder(IInterface::asBinder(omxStore));
     77             return NO_ERROR;
     78         }
     79         default:
     80             return BBinder::onTransact(code, data, reply, flags);
     81     }
     82 }
     83 
     84 // ----------------------------------------------------------------------------
     85 
     86 } // namespace android
     87