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55 lines
1.5 KiB
55 lines
1.5 KiB
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Digital Voice Modem - Bridge
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* GPLv2 Open Source. Use is subject to license terms.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright (C) 2024 Bryan Biedenkapp, N2PLL
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*
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*/
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/**
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* @file SampleTimeConversion.h
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* @ingroup bridge
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*/
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#if !defined(__SAMPLE_TIME_CONVERSION_H__)
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#define __SAMPLE_TIME_CONVERSION_H__
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#include "Defines.h"
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// ---------------------------------------------------------------------------
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// Class Declaration
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// ---------------------------------------------------------------------------
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/**
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* @brief
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* @ingroup bridge
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*/
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class HOST_SW_API SampleTimeConvert {
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public:
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/**
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* @brief (ms) to sample count conversion
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* @param sampleRate Sample rate.
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* @param channels Number of audio channels.
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* @param ms Number of milliseconds.
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* @returns int Number of samples.
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*/
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static int ToSamples(uint32_t sampleRate, uint8_t channels, int ms)
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{
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return (int)(((long)ms) * sampleRate * channels / 1000);
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}
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/**
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* @brief Sample count to (ms) conversion
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* @param sampleRate Sample rate.
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* @param channels Number of audio channels.
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* @param samples Number of samples.
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* @returns int Number of milliseconds.
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*/
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static int ToMS(uint32_t sampleRate, uint8_t channels, int samples)
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{
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return (int)(((float)samples / (float)sampleRate / (float)channels) * 1000);
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}
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};
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#endif // __SAMPLE_TIME_CONVERSION_H__
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