106 lines
5.3 KiB
C#
106 lines
5.3 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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/************************/
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/* Encoder control FIX */
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/************************/
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internal class SilkEncoderControl
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{
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/* Prediction and coding parameters */
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internal readonly int[] Gains_Q16 = new int[SilkConstants.MAX_NB_SUBFR];
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internal readonly short[][] PredCoef_Q12 = Arrays.InitTwoDimensionalArray<short>(2, SilkConstants.MAX_LPC_ORDER); /* holds interpolated and final coefficients */
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internal readonly short[] LTPCoef_Q14 = new short[SilkConstants.LTP_ORDER * SilkConstants.MAX_NB_SUBFR];
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internal int LTP_scale_Q14 = 0;
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internal readonly int[] pitchL = new int[SilkConstants.MAX_NB_SUBFR];
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/* Noise shaping parameters */
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internal readonly short[] AR1_Q13 = new short[SilkConstants.MAX_NB_SUBFR * SilkConstants.MAX_SHAPE_LPC_ORDER];
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internal readonly short[] AR2_Q13 = new short[SilkConstants.MAX_NB_SUBFR * SilkConstants.MAX_SHAPE_LPC_ORDER];
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internal readonly int[] LF_shp_Q14 = new int[SilkConstants.MAX_NB_SUBFR]; /* Packs two int16 coefficients per int32 value */
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internal readonly int[] GainsPre_Q14 = new int[SilkConstants.MAX_NB_SUBFR];
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internal readonly int[] HarmBoost_Q14 = new int[SilkConstants.MAX_NB_SUBFR];
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internal readonly int[] Tilt_Q14 = new int[SilkConstants.MAX_NB_SUBFR];
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internal readonly int[] HarmShapeGain_Q14 = new int[SilkConstants.MAX_NB_SUBFR];
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internal int Lambda_Q10 = 0;
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internal int input_quality_Q14 = 0;
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internal int coding_quality_Q14 = 0;
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/* Measures */
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internal int sparseness_Q8 = 0;
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internal int predGain_Q16 = 0;
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internal int LTPredCodGain_Q7 = 0;
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/* Residual energy per subframe */
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internal readonly int[] ResNrg = new int[SilkConstants.MAX_NB_SUBFR];
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/* Q domain for the residual energy > 0 */
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internal readonly int[] ResNrgQ = new int[SilkConstants.MAX_NB_SUBFR];
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/* Parameters for CBR mode */
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internal readonly int[] GainsUnq_Q16 = new int[SilkConstants.MAX_NB_SUBFR];
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internal sbyte lastGainIndexPrev = 0;
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internal void Reset()
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{
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Arrays.MemSetInt(Gains_Q16, 0, SilkConstants.MAX_NB_SUBFR);
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Arrays.MemSetShort(PredCoef_Q12[0], 0, SilkConstants.MAX_LPC_ORDER);
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Arrays.MemSetShort(PredCoef_Q12[1], 0, SilkConstants.MAX_LPC_ORDER);
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Arrays.MemSetShort(LTPCoef_Q14, 0, SilkConstants.LTP_ORDER * SilkConstants.MAX_NB_SUBFR);
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LTP_scale_Q14 = 0;
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Arrays.MemSetInt(pitchL, 0, SilkConstants.MAX_NB_SUBFR);
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Arrays.MemSetShort(AR1_Q13, 0, SilkConstants.MAX_NB_SUBFR * SilkConstants.MAX_SHAPE_LPC_ORDER);
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Arrays.MemSetShort(AR2_Q13, 0, SilkConstants.MAX_NB_SUBFR * SilkConstants.MAX_SHAPE_LPC_ORDER);
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Arrays.MemSetInt(LF_shp_Q14, 0, SilkConstants.MAX_NB_SUBFR);
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Arrays.MemSetInt(GainsPre_Q14, 0, SilkConstants.MAX_NB_SUBFR);
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Arrays.MemSetInt(HarmBoost_Q14, 0, SilkConstants.MAX_NB_SUBFR);
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Arrays.MemSetInt(Tilt_Q14, 0, SilkConstants.MAX_NB_SUBFR);
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Arrays.MemSetInt(HarmShapeGain_Q14, 0, SilkConstants.MAX_NB_SUBFR);
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Lambda_Q10 = 0;
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input_quality_Q14 = 0;
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coding_quality_Q14 = 0;
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sparseness_Q8 = 0;
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predGain_Q16 = 0;
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LTPredCodGain_Q7 = 0;
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Arrays.MemSetInt(ResNrg, 0, SilkConstants.MAX_NB_SUBFR);
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Arrays.MemSetInt(ResNrgQ, 0, SilkConstants.MAX_NB_SUBFR);
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Arrays.MemSetInt(GainsUnq_Q16, 0, SilkConstants.MAX_NB_SUBFR);
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lastGainIndexPrev = 0;
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}
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}
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}
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