ref: 0536612b984ce2c8b8a40764dec0e670e5235230
dir: /src/lvec.h/
/*
Copyright (C) 2003-2009 Paul Brossier <piem@aubio.org>
This file is part of aubio.
aubio 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.
aubio 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 aubio. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _LVEC_H
#define _LVEC_H
#ifdef __cplusplus
extern "C" {
#endif
/** \file
Real buffers
This file specifies the lvec_t buffer type, which is used in aubio to store
double precision real data. Note that the lvec_t data type is mostly used for
IIR filters (see temporal/filter.h).
*/
/** Buffer for real data in double precision */
typedef struct {
uint_t length; /**< length of buffer */
uint_t channels; /**< number of channels */
lsmp_t **data; /**< data array of size [length] * [channels] */
} lvec_t;
/** lvec_t buffer creation function
\param length the length of the buffer to create
\param channels the number of channels in the buffer
*/
lvec_t * new_lvec(uint_t length, uint_t channels);
/** lvec_t buffer deletion function
\param s buffer to delete as returned by new_lvec()
*/
void del_lvec(lvec_t *s);
/** read sample value in a buffer
Note that this function is not used in the aubio library, since the same
result can be obtained using vec->data[channel][position]. Its purpose is to
access these values from wrappers, as created by swig.
\param s vector to read from
\param channel channel to read from
\param position sample position to read from
*/
lsmp_t lvec_read_sample(lvec_t *s, uint_t channel, uint_t position);
/** write sample value in a buffer
Note that this function is not used in the aubio library, since the same
result can be obtained by assigning vec->data[channel][position]. Its purpose
is to access these values from wrappers, as created by swig.
\param s vector to write to
\param data value to write in s->data[channel][position]
\param channel channel to write to
\param position sample position to write to
*/
void lvec_write_sample(lvec_t *s, lsmp_t data, uint_t channel, uint_t position);
/** read channel vector from a buffer
Note that this function is not used in the aubio library, since the same
result can be obtained with vec->data[channel]. Its purpose is to access
these values from wrappers, as created by swig.
\param s vector to read from
\param channel channel to read from
*/
lsmp_t * lvec_get_channel(lvec_t *s, uint_t channel);
/** write channel vector into a buffer
Note that this function is not used in the aubio library, since the same
result can be obtained by assigning vec->data[channel]. Its purpose is to
access these values from wrappers, as created by swig.
\param s vector to write to
\param data vector of [length] values to write
\param channel channel to write to
*/
void lvec_put_channel(lvec_t *s, lsmp_t * data, uint_t channel);
/** read data from a buffer
Note that this function is not used in the aubio library, since the same
result can be obtained with vec->data. Its purpose is to access these values
from wrappers, as created by swig.
\param s vector to read from
*/
lsmp_t ** lvec_get_data(lvec_t *s);
/** print out lvec data
\param s vector to print out
*/
void lvec_print(lvec_t *s);
/** set all elements to a given value
\param s vector to modify
\param val value to set elements to
*/
void lvec_set(lvec_t *s, smpl_t val);
/** set all elements to zero
\param s vector to modify
*/
void lvec_zeros(lvec_t *s);
/** set all elements to ones
\param s vector to modify
*/
void lvec_ones(lvec_t *s);
#ifdef __cplusplus
}
#endif
#endif /* _LVEC_H */