ref: 06a021bb7ab5a85975a6e27b7cc5255768df3666
dir: libsamplerate/examples/audio_out.h
/* ** Copyright (c) 1999-2016, Erik de Castro Lopo <erikd@mega-nerd.com> ** All rights reserved. ** ** This code is released under 2-clause BSD license. Please see the ** file at : https://github.com/libsndfile/libsamplerate/blob/master/COPYING */ typedef struct AUDIO_OUT 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) ;