#include "fad.h"void default_render_init(fad_render_t *render);s32_t default_render_open_snddev(fad_render_t *render, u8_t sndattr);s32_t default_render_write_pcm(fad_render_t *render, void *buffer, s32_t size);void default_render_close_snddev(fad_render_t *render);void default_render_term(fad_render_t *render);