RetroArch/audio/hermite.h
2011-02-06 18:38:04 +01:00

51 lines
1.5 KiB
C

/* SSNES - A Super Nintendo Entertainment System (SNES) Emulator frontend for libsnes.
* Copyright (C) 2010-2011 - Hans-Kristian Arntzen
*
* Some code herein may be based on code found in BSNES.
*
* SSNES 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 Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* SSNES 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 SSNES.
* If not, see <http://www.gnu.org/licenses/>.
*/
// Hermite resampler based on bsnes' audio library.
// Attempts to be similiar to the libsamplerate process interface.
#ifndef __SSNES_HERMITE_H
#define __SSNES_HERMITE_H
#include <stddef.h>
#include <stdbool.h>
typedef struct hermite_resampler hermite_resampler_t;
hermite_resampler_t *hermite_new(unsigned channels);
struct hermite_data
{
const float *data_in;
float *data_out;
size_t input_frames;
size_t output_frames;
size_t input_frames_used;
size_t output_frames_gen;
bool end_of_input; // Just used to clone the SRC API.
double src_ratio;
};
void hermite_process(hermite_resampler_t *re, struct hermite_data *data);
void hermite_free(hermite_resampler_t *re);
#endif