shallow zip-file copy from codec2 e9d726bf20

1 files changed, 43 insertions, 0 deletions

diff --git a/src/gp_interleaver.h b/src/gp_interleaver.h
new file mode 100644
index 0000000..e49d9ca
--- /dev/null
+++ b/src/gp_interleaver.h
@@ -0,0 +1,43 @@
+/*---------------------------------------------------------------------------*\
+
+  FILE........: gp_interleaver.h
+  AUTHOR......: David Rowe
+  DATE CREATED: April 2018
+
+  Golden Prime Interleaver. My interprestation of "On the Analysis and
+  Design of Good Algebraic Interleavers", Xie et al,eq (5).
+
+  See also octvae/gp_interleaver.m
+
+\*---------------------------------------------------------------------------*/
+
+/*
+  Copyright (C) 2018 David Rowe
+
+  All rights reserved.
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License version 2.1, as
+  published by the Free Software Foundation.  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 for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with this program; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __GP_INTERLEAVER__
+#define __GP_INTERLEAVER__
+
+#include "comp.h"
+
+void gp_interleave_comp(COMP interleaved_frame[], COMP frame[], int Nbits);
+void gp_deinterleave_comp(COMP frame[], COMP interleaved_frame[], int Nbits);
+void gp_interleave_float(float interleaved_frame[], float frame[], int Nbits);
+void gp_deinterleave_float(float frame[], float interleaved_frame[], int Nbits);
+void gp_interleave_bits(char interleaved_frame[], char frame[], int Nbits);
+void gp_deinterleave_bits(char frame[], char interleaved_frame[], int Nbits);
+
+#endif