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1 /*
2  * Copyright (C) 2012 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
5  * use this file except in compliance with the License. You may obtain a copy of
6  * 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, WITHOUT
12  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13  * License for the specific language governing permissions and limitations under
14  * the License.
15  */
16 
17 #ifndef CTSAUDIO_SIGNALPROCESSINGINTERFACE_H
18 #define CTSAUDIO_SIGNALPROCESSINGINTERFACE_H
19 
20 #include <utils/String8.h>
21 
22 #include "task/TaskGeneric.h"
23 
24 /**
25  * Interface to Signal processing module to run signal processing script and retrieve the result
26  * After construction, init() should be called before doing anything else.
27  */
28 class SignalProcessingInterface {
29 public:
~SignalProcessingInterface()30     virtual ~SignalProcessingInterface() {};
31 
32     virtual bool init(const android::String8& script) = 0;
33     /**
34      * run the script with given input / output parameters. Note that this function does not
35      * do any type check.
36      * @param functionScript function name (python script name to run for this call)
37      * @param nInputs number of inputs. This is the length of inputTypes and inputs array
38      * @param inputTypes represent types of each input.
39      *              when true: android::sp<Buffer>*, false: Value*
40      * @param inputs pointer to input. Either android::sp<Buffer>* or Value*
41      * @param nOutputs
42      * @param outputTypes
43      * @param outputs
44      */
45     virtual TaskGeneric::ExecutionResult run(const android::String8& functionScript,
46             int nInputs, bool* inputTypes, void** inputs,
47             int nOutputs, bool* outputTypes, void** outputs) = 0;
48 };
49 
50 #endif //CTSAUDIO_SIGNALPROCESSINGINTERFACE_H
51