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      1 /*
      2  * Copyright (C) 2016 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 AAUDIO_AAUDIO_SERVICE_H
     18 #define AAUDIO_AAUDIO_SERVICE_H
     19 
     20 #include <time.h>
     21 #include <pthread.h>
     22 
     23 #include <binder/BinderService.h>
     24 
     25 #include <aaudio/AAudio.h>
     26 #include "utility/HandleTracker.h"
     27 #include "binding/IAAudioService.h"
     28 #include "binding/AAudioServiceInterface.h"
     29 
     30 #include "AAudioServiceStreamBase.h"
     31 
     32 namespace android {
     33 
     34 class AAudioService :
     35     public BinderService<AAudioService>,
     36     public BnAAudioService,
     37     public aaudio::AAudioServiceInterface
     38 {
     39     friend class BinderService<AAudioService>;
     40 
     41 public:
     42     AAudioService();
     43     virtual ~AAudioService();
     44 
     45     static const char* getServiceName() { return AAUDIO_SERVICE_NAME; }
     46 
     47     virtual aaudio_handle_t openStream(const aaudio::AAudioStreamRequest &request,
     48                                      aaudio::AAudioStreamConfiguration &configuration);
     49 
     50     virtual aaudio_result_t closeStream(aaudio_handle_t streamHandle);
     51 
     52     virtual aaudio_result_t getStreamDescription(
     53                 aaudio_handle_t streamHandle,
     54                 aaudio::AudioEndpointParcelable &parcelable);
     55 
     56     virtual aaudio_result_t startStream(aaudio_handle_t streamHandle);
     57 
     58     virtual aaudio_result_t pauseStream(aaudio_handle_t streamHandle);
     59 
     60     virtual aaudio_result_t stopStream(aaudio_handle_t streamHandle);
     61 
     62     virtual aaudio_result_t flushStream(aaudio_handle_t streamHandle);
     63 
     64     virtual aaudio_result_t registerAudioThread(aaudio_handle_t streamHandle,
     65                                               pid_t pid, pid_t tid,
     66                                               int64_t periodNanoseconds) ;
     67 
     68     virtual aaudio_result_t unregisterAudioThread(aaudio_handle_t streamHandle,
     69                                                   pid_t pid, pid_t tid);
     70 
     71 private:
     72 
     73     aaudio::AAudioServiceStreamBase *convertHandleToServiceStream(aaudio_handle_t streamHandle) const;
     74 
     75     HandleTracker mHandleTracker;
     76 
     77     enum constants {
     78         DEFAULT_AUDIO_PRIORITY = 2
     79     };
     80 };
     81 
     82 } /* namespace android */
     83 
     84 #endif //AAUDIO_AAUDIO_SERVICE_H
     85