(caf7e6a2e) Replaced Concentus NuGet package with csproj (ensures correct System.Runtime references)

2019-04-29 21:11:59 +03:00
parent f10adc2612
commit 0b1b39d70a
149 changed files with 47171 additions and 70 deletions
@@ -0,0 +1,66 @@
+/* Copyright (c) 2006-2011 Skype Limited. All Rights Reserved
+   Ported to C# by Logan Stromberg
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions
+   are met:
+
+   - Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+
+   - Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+   ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+   OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+namespace Concentus.Silk
+{
+    using Concentus.Common;
+    using Concentus.Common.CPlusPlus;
+    using Concentus.Silk.Enums;
+    using Concentus.Silk.Structs;
+    using System.Diagnostics;
+
+    internal static class LTPScaleControl
+    {
+        /* Calculation of LTP state scaling */
+        internal static void silk_LTP_scale_ctrl(
+            SilkChannelEncoder psEnc,                                 /* I/O  encoder state                                                               */
+            SilkEncoderControl psEncCtrl,                             /* I/O  encoder control                                                             */
+            int condCoding                              /* I    The type of conditional coding to use                                       */
+        )
+        {
+            int round_loss;
+
+            if (condCoding == SilkConstants.CODE_INDEPENDENTLY)
+            {
+                /* Only scale if first frame in packet */
+                round_loss = psEnc.PacketLoss_perc + psEnc.nFramesPerPacket;
+                psEnc.indices.LTP_scaleIndex = (sbyte)Inlines.silk_LIMIT(
+                    Inlines.silk_SMULWB(Inlines.silk_SMULBB(round_loss, psEncCtrl.LTPredCodGain_Q7), ((int)((0.1f) * ((long)1 << (9)) + 0.5))/*Inlines.SILK_CONST(0.1f, 9)*/), 0, 2);
+            }
+            else {
+                /* Default is minimum scaling */
+                psEnc.indices.LTP_scaleIndex = 0;
+            }
+            psEncCtrl.LTP_scale_Q14 = Tables.silk_LTPScales_table_Q14[psEnc.indices.LTP_scaleIndex];
+        }
+    }
+}