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twtw-audio.h
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twtw-audio.h
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/*
* twtw-audio-apple.h
* TwentyTwenty
*
* Created by Pauli Ojala on 29.11.2008.
* Copyright 2008 Pauli Olavi Ojala. All rights reserved.
*
*/
/*
This file is part of TwentyTwenty.
TwentyTwenty 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.
TwentyTwenty 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 TwentyTwenty. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _TWTW_AUDIO_H_
#define _TWTW_AUDIO_H_
#include <stdlib.h>
#include <string.h>
/* The PCM format used in 20:20 is fixed as the following:
- 8 kHz
- 16 bits/sample
- little-endian.
Conversion to/from Speex is done only when exporting or importing documents.
*/
#define TWTW_PCM_SAMPLERATE 8000
#define TWTW_PCM_SAMPLEBITS 16
#define TWTW_PCM_LITTLE_ENDIAN 1
enum {
TWTW_AUDIOSTATUS_IDLE = 0,
TWTW_AUDIOSTATUS_REC = 1,
TWTW_AUDIOSTATUS_PLAY
};
#ifdef __cplusplus
extern "C" {
#endif
typedef struct _TwtwAudioCallbacks {
void (*audioCompletedFunc) (int, void *);
void (*audioInProgressFunc) (int, double, void *);
} TwtwAudioCallbacks;
void twtw_audio_init ();
void twtw_audio_deinit ();
int twtw_audio_pcm_record_to_path_utf8 (const char *path, size_t pathLen, int seconds, TwtwAudioCallbacks callbacks, void *cbData);
int twtw_audio_pcm_play_from_path_utf8 (const char *path, size_t pathLen, TwtwAudioCallbacks callbacks, void *cbData);
void twtw_audio_pcm_stop ();
#ifdef __cplusplus
}
#endif
#endif