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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
#ifndef CTSAUDIO_TASKPROCESS_H
#define CTSAUDIO_TASKPROCESS_H
#include <memory>
#include <vector>
#include <utils/StrongPointer.h>
#include "audio/Buffer.h"
#include "TaskGeneric.h"
#include "TaskCase.h"
#include "BuiltinProcessing.h"
#include "SignalProcessingInterface.h"
class TaskProcess: public TaskGeneric {
public:
TaskProcess();
virtual ~TaskProcess();
virtual TaskGeneric::ExecutionResult run();
virtual bool parseAttribute(const android::String8& name, const android::String8& value);
private:
TaskGeneric::ExecutionResult doRun(bool builtin);
class Param;
bool parseParams(std::vector<Param>& list, const char* str, bool isInput);
//typedef necessary to prevent compiler's confusion
typedef void* void_ptr;
typedef std::unique_ptr<TaskCase::Value> UniqueValue;
typedef std::unique_ptr<android::sp<Buffer> > UniqueBuffer;
/// construct Buffers and Values for calling builtin functions.
/// all constructed stuffs automatically deleted by the passed std::unique_ptrs.
bool prepareParams(std::vector<TaskProcess::Param>& list,
const bool* inputTypes,
std::unique_ptr<void_ptr[]>& ptrs,
std::unique_ptr<UniqueValue[]>& values,
std::unique_ptr<UniqueBuffer[]>& buffers,
bool isInput);
private:
enum ProcessType {
EBuiltin,
EScript
};
ProcessType mType;
android::String8 mName; // buit-in function or script name
enum ParamType {
EId,
EVal,
EConst
};
class Param {
public:
Param(ParamType type, android::String8& string);
explicit Param(TaskCase::Value& val);
ParamType getType();
android::String8& getParamString();
TaskCase::Value& getValue();
TaskCase::Value* getValuePtr();
inline bool isIdType() {
return (mType == EId);
}
private:
ParamType mType;
android::String8 mString;
TaskCase::Value mValue;
};
std::vector<Param> mInput;
std::vector<Param> mOutput;
BuiltinProcessing mBuiltin;
std::unique_ptr<SignalProcessingInterface> mSp;
};
#endif // CTSAUDIO_TASKPROCESS_H