git-svn-id: https://svn.code.sf.net/p/freetel/code@508 01035d8c-6547-0410-b346-abe4f9...

diff --git a/fdmdv2/extern/include/codec2.h b/fdmdv2/extern/include/codec2.h
new file mode 100644 (file)
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+++ b/fdmdv2/extern/include/codec2.h
@@ -0,0 +1,53 @@
+/*---------------------------------------------------------------------------*\
+
+  FILE........: codec2.h
+  AUTHOR......: David Rowe
+  DATE CREATED: 21/8/2010
+
+  Codec2 fully quantised encoder and decoder functions.  If you want use 
+  codec2, these are the functions you need to call.
+
+\*---------------------------------------------------------------------------*/
+
+/*
+  Copyright (C) 2010 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/>.
+*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+#ifndef __CODEC2__
+#define  __CODEC2__
+
+#define CODEC2_MODE_2400 0
+#define CODEC2_MODE_1400 1
+#define CODEC2_MODE_1200 2
+
+struct CODEC2;
+
+struct CODEC2 *codec2_create(int mode);
+void codec2_destroy(struct CODEC2 *codec2_state);
+void codec2_encode(struct CODEC2 *codec2_state, unsigned char * bits, short speech_in[]);
+void codec2_decode(struct CODEC2 *codec2_state, short speech_out[], const unsigned char *bits);
+int  codec2_samples_per_frame(struct CODEC2 *codec2_state);
+int  codec2_bits_per_frame(struct CODEC2 *codec2_state);
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+

diff --git a/fdmdv2/extern/include/samplerate.h b/fdmdv2/extern/include/samplerate.h
new file mode 100644 (file)
index 0000000..044f8d7
--- /dev/null
+++ b/fdmdv2/extern/include/samplerate.h
@@ -0,0 +1,197 @@
+/*
+** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.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; either version 2 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 for more details.
+**
+** You should have received a copy of the GNU General Public License
+** along with this program; if not, write to the Free Software
+** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+*/
+
+/*
+** This code is part of Secret Rabbit Code aka libsamplerate. A commercial
+** use license for this code is available, please see:
+**             http://www.mega-nerd.com/SRC/procedure.html
+*/
+
+/*
+** API documentation is available here:
+**     http://www.mega-nerd.com/SRC/api.html
+*/
+
+#ifndef SAMPLERATE_H
+#define SAMPLERATE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+
+/* Opaque data type SRC_STATE. */
+typedef struct SRC_STATE_tag SRC_STATE ;
+
+/* SRC_DATA is used to pass data to src_simple() and src_process(). */
+typedef struct
+{      float   *data_in, *data_out ;
+
+       long    input_frames, output_frames ;
+       long    input_frames_used, output_frames_gen ;
+
+       int             end_of_input ;
+
+       double  src_ratio ;
+} SRC_DATA ;
+
+/* SRC_CB_DATA is used with callback based API. */
+typedef struct
+{      long    frames ;
+       float   *data_in ;
+} SRC_CB_DATA ;
+
+/*
+** User supplied callback function type for use with src_callback_new()
+** and src_callback_read(). First parameter is the same pointer that was
+** passed into src_callback_new(). Second parameter is pointer to a
+** pointer. The user supplied callback function must modify *data to
+** point to the start of the user supplied float array. The user supplied
+** function must return the number of frames that **data points to.
+*/
+
+typedef long (*src_callback_t) (void *cb_data, float **data) ;
+
+/*
+**     Standard initialisation function : return an anonymous pointer to the
+**     internal state of the converter. Choose a converter from the enums below.
+**     Error returned in *error.
+*/
+
+SRC_STATE* src_new (int converter_type, int channels, int *error) ;
+
+/*
+**     Initilisation for callback based API : return an anonymous pointer to the
+**     internal state of the converter. Choose a converter from the enums below.
+**     The cb_data pointer can point to any data or be set to NULL. Whatever the
+**     value, when processing, user supplied function "func" gets called with
+**     cb_data as first parameter.
+*/
+
+SRC_STATE* src_callback_new (src_callback_t func, int converter_type, int channels,
+                               int *error, void* cb_data) ;
+
+/*
+**     Cleanup all internal allocations.
+**     Always returns NULL.
+*/
+
+SRC_STATE* src_delete (SRC_STATE *state) ;
+
+/*
+**     Standard processing function.
+**     Returns non zero on error.
+*/
+
+int src_process (SRC_STATE *state, SRC_DATA *data) ;
+
+/*
+**     Callback based processing function. Read up to frames worth of data from
+**     the converter int *data and return frames read or -1 on error.
+*/
+long src_callback_read (SRC_STATE *state, double src_ratio, long frames, float *data) ;
+
+/*
+**     Simple interface for performing a single conversion from input buffer to
+**     output buffer at a fixed conversion ratio.
+**     Simple interface does not require initialisation as it can only operate on
+**     a single buffer worth of audio.
+*/
+
+int src_simple (SRC_DATA *data, int converter_type, int channels) ;
+
+/*
+** This library contains a number of different sample rate converters,
+** numbered 0 through N.
+**
+** Return a string giving either a name or a more full description of each
+** sample rate converter or NULL if no sample rate converter exists for
+** the given value. The converters are sequentially numbered from 0 to N.
+*/
+
+const char *src_get_name (int converter_type) ;
+const char *src_get_description (int converter_type) ;
+const char *src_get_version (void) ;
+
+/*
+**     Set a new SRC ratio. This allows step responses
+**     in the conversion ratio.
+**     Returns non zero on error.
+*/
+
+int src_set_ratio (SRC_STATE *state, double new_ratio) ;
+
+/*
+**     Reset the internal SRC state.
+**     Does not modify the quality settings.
+**     Does not free any memory allocations.
+**     Returns non zero on error.
+*/
+
+int src_reset (SRC_STATE *state) ;
+
+/*
+** Return TRUE if ratio is a valid conversion ratio, FALSE
+** otherwise.
+*/
+
+int src_is_valid_ratio (double ratio) ;
+
+/*
+**     Return an error number.
+*/
+
+int src_error (SRC_STATE *state) ;
+
+/*
+**     Convert the error number into a string.
+*/
+const char* src_strerror (int error) ;
+
+/*
+** The following enums can be used to set the interpolator type
+** using the function src_set_converter().
+*/
+
+enum
+{
+       SRC_SINC_BEST_QUALITY           = 0,
+       SRC_SINC_MEDIUM_QUALITY         = 1,
+       SRC_SINC_FASTEST                        = 2,
+       SRC_ZERO_ORDER_HOLD                     = 3,
+       SRC_LINEAR                                      = 4,
+} ;
+
+/*
+** Extra helper functions for converting from short to float and
+** back again.
+*/
+
+void src_short_to_float_array (const short *in, float *out, int len) ;
+void src_float_to_short_array (const float *in, short *out, int len) ;
+
+void src_int_to_float_array (const int *in, float *out, int len) ;
+void src_float_to_int_array (const float *in, int *out, int len) ;
+
+
+#ifdef __cplusplus
+}              /* extern "C" */
+#endif /* __cplusplus */
+
+#endif /* SAMPLERATE_H */
+