From b409a4b0c6131e01fc5a03c0fc31caa4829b0dec Mon Sep 17 00:00:00 2001
From: Johnathan Corgan <jcorgan@corganenterprises.com>
Date: Mon, 18 Jul 2011 15:54:43 -0700
Subject: gr-vocoder: re-implemented gr-codec2-vocoder inside gr-vocoder
---
gr-vocoder/lib/codec2/codec2_internal.h | 63 +++++++++++++++++++++++++++++++++
1 file changed, 63 insertions(+)
create mode 100644 gr-vocoder/lib/codec2/codec2_internal.h
(limited to 'gr-vocoder/lib/codec2/codec2_internal.h')
diff --git a/gr-vocoder/lib/codec2/codec2_internal.h b/gr-vocoder/lib/codec2/codec2_internal.h
new file mode 100644
index 0000000000..3943ac29dd
--- /dev/null
+++ b/gr-vocoder/lib/codec2/codec2_internal.h
@@ -0,0 +1,63 @@
+/*---------------------------------------------------------------------------*\
+
+ FILE........: codec2_internal.h
+ AUTHOR......: David Rowe
+ DATE CREATED: 22 March 2011
+
+ Some internal structures and states broken out here as they are useful for
+ testing and development.
+
+\*---------------------------------------------------------------------------*/
+
+/*
+ Copyright (C) 2011 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 __CODEC2_INTERNAL__
+#define __CODEC2_INTERNAL__
+
+/*---------------------------------------------------------------------------*\
+
+ STATES
+
+\*---------------------------------------------------------------------------*/
+
+typedef struct {
+ float w[M]; /* time domain hamming window */
+ COMP W[FFT_ENC]; /* DFT of w[] */
+ float Pn[2*N]; /* trapezoidal synthesis window */
+ float Sn[M]; /* input speech */
+ float hpf_states[2]; /* high pass filter states */
+ void *nlp; /* pitch predictor states */
+ float Sn_[2*N]; /* synthesised output speech */
+ float ex_phase; /* excitation model phase track */
+ float bg_est; /* background noise estimate for post filter */
+ float prev_Wo; /* previous frame's pitch estimate */
+ MODEL prev_model; /* previous frame's model parameters */
+ float prev_lsps[LPC_ORD]; /* previous frame's LSPs */
+ float prev_energy; /* previous frame's LPC energy */
+} CODEC2;
+
+/*---------------------------------------------------------------------------*\
+
+ FUNCTION HEADERS
+
+\*---------------------------------------------------------------------------*/
+
+void analyse_one_frame(CODEC2 *c2, MODEL *model, short speech[]);
+void synthesise_one_frame(CODEC2 *c2, short speech[], MODEL *model,float ak[]);
+
+#endif
--
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