mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-30 20:20:38 +00:00
47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
/* convolve.h: Header for convolutions.
|
|
*
|
|
* Copyright (C) 1999 Ralph Loader <suckfish@ihug.co.nz>
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef CONVOLVE_H
|
|
#define CONVOLVE_H
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* convolve_match takes two blocks, one twice the size of the other. The
|
|
* sizes of these are CONVOLVE_BIG and CONVOLVE_SMALL respectively. */
|
|
#define CONVOLVE_DEPTH 8
|
|
#define CONVOLVE_SMALL (1 << CONVOLVE_DEPTH)
|
|
#define CONVOLVE_BIG (CONVOLVE_SMALL * 2)
|
|
|
|
/* Convolution stuff */
|
|
typedef struct _struct_convolve_state convolve_state;
|
|
|
|
convolve_state *convolve_init (void);
|
|
void convolve_close (convolve_state * state);
|
|
|
|
int convolve_match (const int * lastchoice,
|
|
const short int * input,
|
|
convolve_state * state);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|