feat: integrate RTL-TCP server support

android/app/src/main/cpp/dsp/ctcssfrequencies.cpp

@@ -0,0 +1,77 @@
+///////////////////////////////////////////////////////////////////////////////////
+// Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
+// written by Christian Daniel                                                   //
+// Copyright (C) 2015-2020 Edouard Griffiths, F4EXB <f4exb06@gmail.com>          //
+//                                                                               //
+// This program is free software, you can redistribute it and/or modify          //
+// it under the terms of the GNU General Public License as published by          //
+// the Free Software Foundation as version 3 of the License, or                  //
+// (at your option) any later version.                                           //
+//                                                                               //
+// This program is distributed in the hope that it will be useful,               //
+// but WITHOUT ANY WARRANTY, without even the implied warranty of                //
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                  //
+// GNU General Public License V3 for more details.                               //
+//                                                                               //
+// You should have received a copy of the GNU General Public License             //
+// along with this program. If not, see <http://www.gnu.org/licenses/>.          //
+///////////////////////////////////////////////////////////////////////////////////
+
+#include "ctcssfrequencies.h"
+
+// The 51 tones from various standards (https://en.wikipedia.org/wiki/Continuous_Tone-Coded_Squelch_System)
+const float CTCSSFrequencies::m_Freqs[] = {
+   67.0, // 0
+   69.3,
+   71.9,
+   74.4,
+   77.0,
+   79.7,
+   82.5,
+   85.4,
+   88.5,
+   91.5,
+   94.8, // 10
+   97.4,
+   100.0,
+   103.5,
+   107.2,
+   110.9,
+   114.8,
+   118.8,
+   123.0,
+   127.3,
+   131.8, // 20
+   136.5,
+   141.3,
+   146.2,
+   150.0,
+   151.4,
+   156.7,
+   159.8,
+   162.2,
+   165.5,
+   167.9, // 30
+   171.3,
+   173.8,
+   177.3,
+   179.9,
+   183.5,
+   186.2,
+   189.9,
+   192.8,
+   196.6,
+   199.5, // 40
+   203.5,
+   206.5,
+   210.7,
+   218.1,
+   225.7,
+   229.1,
+   233.6,
+   241.8,
+   250.3,
+   254.1, // 50
+};
+
+const int CTCSSFrequencies::m_nbFreqs = 51;