From 76288efeead86fd5799d9771e50bf3222aaa8e71 Mon Sep 17 00:00:00 2001 From: Bent Bisballe Nyeng Date: Sun, 3 Nov 2019 15:36:47 +0100 Subject: Import from zita-resampler-1.6.0.tar.bz2 --- libs/zita-resampler/cresampler.h | 65 +++++++++++++++++++++++++++ libs/zita-resampler/resampler-table.h | 80 +++++++++++++++++++++++++++++++++ libs/zita-resampler/resampler.h | 76 +++++++++++++++++++++++++++++++ libs/zita-resampler/vresampler.h | 84 +++++++++++++++++++++++++++++++++++ 4 files changed, 305 insertions(+) create mode 100644 libs/zita-resampler/cresampler.h create mode 100644 libs/zita-resampler/resampler-table.h create mode 100644 libs/zita-resampler/resampler.h create mode 100644 libs/zita-resampler/vresampler.h (limited to 'libs/zita-resampler') diff --git a/libs/zita-resampler/cresampler.h b/libs/zita-resampler/cresampler.h new file mode 100644 index 0000000..b51ed44 --- /dev/null +++ b/libs/zita-resampler/cresampler.h @@ -0,0 +1,65 @@ +// ---------------------------------------------------------------------------- +// +// Copyright (C) 2013 Fons Adriaensen +// +// 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 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 for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program. If not, see . +// +// ---------------------------------------------------------------------------- + + +#ifndef __CRESAMPLER_H +#define __CRESAMPLER_H + + +class CResampler +{ +public: + + CResampler (void); + ~CResampler (void); + + int setup (double ratio, + unsigned int nchan); + + void clear (void); + int reset (void); + int nchan (void) const { return _nchan; } + int inpsize (void) const; + double inpdist (void) const; + int process (void); + + void set_ratio (double r); + void set_phase (double p); + + unsigned int inp_count; + unsigned int out_count; + float *inp_data; + float *out_data; + void *inp_list; + void *out_list; + +private: + + unsigned int _nchan; + unsigned int _inmax; + unsigned int _index; + unsigned int _nread; + unsigned int _nzero; + double _phase; + double _pstep; + float *_buff; +}; + + +#endif diff --git a/libs/zita-resampler/resampler-table.h b/libs/zita-resampler/resampler-table.h new file mode 100644 index 0000000..22e694a --- /dev/null +++ b/libs/zita-resampler/resampler-table.h @@ -0,0 +1,80 @@ +// ---------------------------------------------------------------------------- +// +// Copyright (C) 2006-2012 Fons Adriaensen +// +// 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 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 for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program. If not, see . +// +// ---------------------------------------------------------------------------- + + +#ifndef __RESAMPLER_TABLE_H +#define __RESAMPLER_TABLE_H + + +#include + + +#define ZITA_RESAMPLER_MAJOR_VERSION 1 +#define ZITA_RESAMPLER_MINOR_VERSION 6 + + +extern int zita_resampler_major_version (void); +extern int zita_resampler_minor_version (void); + + +class Resampler_mutex +{ +private: + + friend class Resampler_table; + + Resampler_mutex (void) { pthread_mutex_init (&_mutex, 0); } + ~Resampler_mutex (void) { pthread_mutex_destroy (&_mutex); } + void lock (void) { pthread_mutex_lock (&_mutex); } + void unlock (void) { pthread_mutex_unlock (&_mutex); } + + pthread_mutex_t _mutex; +}; + + +class Resampler_table +{ +public: + + static void print_list (void); + +private: + + Resampler_table (double fr, unsigned int hl, unsigned int np); + ~Resampler_table (void); + + friend class Resampler; + friend class VResampler; + + Resampler_table *_next; + unsigned int _refc; + float *_ctab; + double _fr; + unsigned int _hl; + unsigned int _np; + + static Resampler_table *create (double fr, unsigned int hl, unsigned int np); + static void destroy (Resampler_table *T); + + static Resampler_table *_list; + static Resampler_mutex _mutex; +}; + + +#endif diff --git a/libs/zita-resampler/resampler.h b/libs/zita-resampler/resampler.h new file mode 100644 index 0000000..5dbff4f --- /dev/null +++ b/libs/zita-resampler/resampler.h @@ -0,0 +1,76 @@ +// ---------------------------------------------------------------------------- +// +// Copyright (C) 2006-2012 Fons Adriaensen +// +// 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 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 for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program. If not, see . +// +// ---------------------------------------------------------------------------- + + +#ifndef __RESAMPLER_H +#define __RESAMPLER_H + + +#include + + +class Resampler +{ +public: + + Resampler (void); + ~Resampler (void); + + int setup (unsigned int fs_inp, + unsigned int fs_out, + unsigned int nchan, + unsigned int hlen); + + int setup (unsigned int fs_inp, + unsigned int fs_out, + unsigned int nchan, + unsigned int hlen, + double frel); + + void clear (void); + int reset (void); + int nchan (void) const { return _nchan; } + int filtlen (void) const { return inpsize (); } // Deprecated + int inpsize (void) const; + double inpdist (void) const; + int process (void); + + unsigned int inp_count; + unsigned int out_count; + float *inp_data; + float *out_data; + void *inp_list; + void *out_list; + +private: + + Resampler_table *_table; + unsigned int _nchan; + unsigned int _inmax; + unsigned int _index; + unsigned int _nread; + unsigned int _nzero; + unsigned int _phase; + unsigned int _pstep; + float *_buff; + void *_dummy [8]; +}; + + +#endif diff --git a/libs/zita-resampler/vresampler.h b/libs/zita-resampler/vresampler.h new file mode 100644 index 0000000..95fefc4 --- /dev/null +++ b/libs/zita-resampler/vresampler.h @@ -0,0 +1,84 @@ +// ---------------------------------------------------------------------------- +// +// Copyright (C) 2006-2012 Fons Adriaensen +// +// 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 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 for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program. If not, see . +// +// ---------------------------------------------------------------------------- + + +#ifndef __VRESAMPLER_H +#define __VRESAMPLER_H + + +#include + + +class VResampler +{ +public: + + VResampler (void); + ~VResampler (void); + + int setup (double ratio, + unsigned int nchan, + unsigned int hlen); + + int setup (double ratio, + unsigned int nchan, + unsigned int hlen, + double frel); + + void clear (void); + int reset (void); + int nchan (void) const { return _nchan; } + int inpsize (void) const; + double inpdist (void) const; + int process (void); + + void set_phase (double p); + void set_rrfilt (double t); + void set_rratio (double r); + + unsigned int inp_count; + unsigned int out_count; + float *inp_data; + float *out_data; + void *inp_list; + void *out_list; + +private: + + enum { NPHASE = 256 }; + + Resampler_table *_table; + unsigned int _nchan; + unsigned int _inmax; + unsigned int _index; + unsigned int _nread; + unsigned int _nzero; + double _ratio; + double _phase; + double _pstep; + double _qstep; + double _wstep; + float *_buff; + float *_c1; + float *_c2; + void *_dummy [8]; +}; + + +#endif -- cgit v1.2.3