MCUME/MCUME_pico/picosnd/LibFC14/fc14audiodecoder.h

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2.7 KiB
C

/* C language wrapper library for Future Composer audio decoder
* Copyright (C) 2008 Michael Schwendt
*
* 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 FC14AUDIODECODER_H
#define FC14AUDIODECODER_H
#ifdef __cplusplus
extern "C" {
#endif
/* Return ptr to new decoder object. */
void* fc14dec_new();
/* Delete decoder object. */
void fc14dec_delete(void* decoder);
/* Apply input format header check to a memory buffer.
Returns: 0 = recognized data, 1 = unknown data */
int fc14dec_detect(void* decoder, void* buffer, unsigned long int length);
/* Initialize decoder with input data from a memory buffer.
Input buffer may be freed as buffer contents are copied.
Returns: 0 = success, 1 = failure */
int fc14dec_init(void* decoder, void* buffer, unsigned long int length);
/* Restart an already initialized decoder. */
void fc14dec_restart(void* decoder);
/* Initialize decoder's audio sample mixer.
frequency : output sample frequency
precision : bits per sample
channels : 1=mono, 2=stereo
zero : value of silent output sample
(e.g. 0x80 for unsigned 8-bit, 0x0000 for signed 16-bit) */
void fc14dec_mixer_init(void* decoder, int frequency, int precision,
int channels, int zero);
/* Return 0 if song end has been reached, else 1. */
int fc14dec_song_end(void* decoder);
/* Return song duration in milli-seconds [ms].
Decoder must be initialized and will be restarted afterwards. */
unsigned long int fc14dec_duration(void* decoder);
/* Set an initialized decoder's play position in milli-seconds [ms]. */
void fc14dec_seek(void* decoder, long int ms);
/* Return C-string describing the detected input data format.
Use only with an initialized decoder. */
const char* fc14dec_format_name(void* decoder);
/* Fill output sample buffer with audio. */
void fc14dec_buffer_fill(void* decoder, void* buffer, unsigned long int length);
#ifdef __cplusplus
}
#endif
#endif /* FC14AUDIODECODER_H */