src/Ryujinx.Audio/Renderer/Dsp/State/LimiterState.cs


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

using Ryujinx.Audio.Renderer.Dsp.Effect;
using Ryujinx.Audio.Renderer.Parameter.Effect;
using System;

namespace Ryujinx.Audio.Renderer.Dsp.State
{
    public struct LimiterState
    {
        public ExponentialMovingAverage[] DetectorAverage;
        public ExponentialMovingAverage[] CompressionGainAverage;
        public float[] DelayedSampleBuffer;
        public int[] DelayedSampleBufferPosition;

        public LimiterState(ref LimiterParameter parameter, ulong workBuffer)
        {
            DetectorAverage = new ExponentialMovingAverage[parameter.ChannelCount];
            CompressionGainAverage = new ExponentialMovingAverage[parameter.ChannelCount];
            DelayedSampleBuffer = new float[parameter.ChannelCount * parameter.DelayBufferSampleCountMax];
            DelayedSampleBufferPosition = new int[parameter.ChannelCount];

            DetectorAverage.AsSpan().Fill(new ExponentialMovingAverage(0.0f));
            CompressionGainAverage.AsSpan().Fill(new ExponentialMovingAverage(1.0f));
            DelayedSampleBufferPosition.AsSpan().Clear();
            DelayedSampleBuffer.AsSpan().Clear();

            UpdateParameter(ref parameter);
        }

        public static void UpdateParameter(ref LimiterParameter parameter) { }
    }
}