shithub: libsamplerate

ref: 25b34fb53fe6c0f7e343af572742ce0eb2df3c7f
dir: /examples/audio_out.h/

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/*
** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com>
**
** 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.
*/

typedef	struct AUDIO_OUT_s AUDIO_OUT ;

typedef int (*get_audio_callback_t) (void *callback_data, float *samples, int frames) ;

/* A general audio output function (Linux/ALSA, Linux/OSS, Win32, MacOSX,
** Solaris) which retrieves data using the callback function in the above
** struct.
**
** audio_open - opens the device and returns an anonymous pointer to its
**              own private data.
*/

AUDIO_OUT *audio_open (int channels, int samplerate) ;

void audio_play (get_audio_callback_t callback, AUDIO_OUT *audio_out, void *callback_data) ;

void audio_close (AUDIO_OUT *audio_data) ;