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/*
* Copyright 2016 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 OBOE_UTILITIES_H
#define OBOE_UTILITIES_H
#include <unistd.h>
#include <sys/types.h>
#include <string>
#include "oboe/Definitions.h"
namespace oboe {
/**
* Convert an array of floats to an array of 16-bit integers.
*
* @param source the input array.
* @param destination the output array.
* @param numSamples the number of values to convert.
*/
void convertFloatToPcm16(const float *source, int16_t *destination, int32_t numSamples);
/**
* Convert an array of 16-bit integers to an array of floats.
*
* @param source the input array.
* @param destination the output array.
* @param numSamples the number of values to convert.
*/
void convertPcm16ToFloat(const int16_t *source, float *destination, int32_t numSamples);
/**
* @return the size of a sample of the given format in bytes or 0 if format is invalid
*/
int32_t convertFormatToSizeInBytes(AudioFormat format);
/**
* The text is the ASCII symbol corresponding to the supplied Oboe enum value,
* or an English message saying the value is unrecognized.
* This is intended for developers to use when debugging.
* It is not for displaying to users.
*
* @param input object to convert from. @see common/Utilities.cpp for concrete implementations
* @return text representation of an Oboe enum value. There is no need to call free on this.
*/
template <typename FromType>
const char * convertToText(FromType input);
/**
* @param name
* @return the value of a named system property in a string or empty string
*/
std::string getPropertyString(const char * name);
/**
* @param name
* @param defaultValue
* @return integer value associated with a property or the default value
*/
int getPropertyInteger(const char * name, int defaultValue);
/**
* Return the version of the SDK that is currently running.
*
* For example, on Android, this would return 27 for Oreo 8.1.
* If the version number cannot be determined then this will return -1.
*
* @return version number or -1
*/
int getSdkVersion();
} // namespace oboe
#endif //OBOE_UTILITIES_H
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