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52 lines
1.2 KiB
52 lines
1.2 KiB
// SPDX-License-Identifier: AGPL-3.0-only
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/**
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* Digital Voice Modem - DVMConsole
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* AGPLv3 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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* @package DVM / DVM Console
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* @license AGPLv3 License (https://opensource.org/licenses/AGPL-3.0)
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*
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* Copyright (C) 2025 Caleb, K4PHP
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*
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*/
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using NAudio.Wave;
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using NAudio.Wave.SampleProviders;
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using System;
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namespace DVMConsole
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{
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public class GainSampleProvider : ISampleProvider
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{
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private readonly ISampleProvider _source;
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private float _gain = 1.0f;
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public GainSampleProvider(ISampleProvider source)
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{
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_source = source ?? throw new ArgumentNullException(nameof(source));
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WaveFormat = source.WaveFormat;
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}
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public WaveFormat WaveFormat { get; }
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public float Gain
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{
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get => _gain;
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set => _gain = Math.Max(0, value);
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}
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public int Read(float[] buffer, int offset, int count)
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{
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int samplesRead = _source.Read(buffer, offset, count);
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for (int i = 0; i < samplesRead; i++)
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{
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buffer[offset + i] *= _gain;
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}
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return samplesRead;
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}
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}
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}
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