Joonas Rikkonen
95 lines
4.1 KiB
C#
95 lines
4.1 KiB
C#
/* Copyright (c) 2006-2011 Skype Limited. All Rights Reserved
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Ported to C# by Logan Stromberg
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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- Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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- Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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- Neither the name of Internet Society, IETF or IETF Trust, nor the
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names of specific contributors, may be used to endorse or promote
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products derived from this software without specific prior written
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permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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namespace Concentus.Silk.Structs
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{
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using Concentus.Common;
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using Concentus.Common.CPlusPlus;
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using Concentus.Silk.Enums;
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using System;
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internal class SilkResamplerState
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{
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internal readonly int[] sIIR = new int[SilkConstants.SILK_RESAMPLER_MAX_IIR_ORDER]; /* this must be the first element of this struct FIXME why? */
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internal readonly int[] sFIR_i32 = new int[SilkConstants.SILK_RESAMPLER_MAX_FIR_ORDER]; // porting note: these two fields were originally a union, so that means only 1 will ever be used at a time.
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internal readonly short[] sFIR_i16 = new short[SilkConstants.SILK_RESAMPLER_MAX_FIR_ORDER];
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internal readonly short[] delayBuf = new short[48];
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internal int resampler_function = 0;
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internal int batchSize = 0;
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internal int invRatio_Q16 = 0;
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internal int FIR_Order = 0;
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internal int FIR_Fracs = 0;
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internal int Fs_in_kHz = 0;
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internal int Fs_out_kHz = 0;
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internal int inputDelay = 0;
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/// <summary>
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/// POINTER
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/// </summary>
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internal short[] Coefs = null;
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internal void Reset()
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{
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Arrays.MemSetInt(sIIR, 0, SilkConstants.SILK_RESAMPLER_MAX_IIR_ORDER);
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Arrays.MemSetInt(sFIR_i32, 0, SilkConstants.SILK_RESAMPLER_MAX_FIR_ORDER);
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Arrays.MemSetShort(sFIR_i16, 0, SilkConstants.SILK_RESAMPLER_MAX_FIR_ORDER);
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Arrays.MemSetShort(delayBuf, 0, 48);
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resampler_function = 0;
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batchSize = 0;
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invRatio_Q16 = 0;
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FIR_Order = 0;
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FIR_Fracs = 0;
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Fs_in_kHz = 0;
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Fs_out_kHz = 0;
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inputDelay = 0;
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Coefs = null;
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}
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internal void Assign(SilkResamplerState other)
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{
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resampler_function = other.resampler_function;
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batchSize = other.batchSize;
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invRatio_Q16 = other.invRatio_Q16;
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FIR_Order = other.FIR_Order;
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FIR_Fracs = other.FIR_Fracs;
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Fs_in_kHz = other.Fs_in_kHz;
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Fs_out_kHz = other.Fs_out_kHz;
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inputDelay = other.inputDelay;
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Coefs = other.Coefs;
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Array.Copy(other.sIIR, this.sIIR, SilkConstants.SILK_RESAMPLER_MAX_IIR_ORDER);
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Array.Copy(other.sFIR_i32, this.sFIR_i32, SilkConstants.SILK_RESAMPLER_MAX_FIR_ORDER);
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Array.Copy(other.sFIR_i16, this.sFIR_i16, SilkConstants.SILK_RESAMPLER_MAX_FIR_ORDER);
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Array.Copy(other.delayBuf, this.delayBuf, 48);
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}
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}
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}
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