static const pa_sample_spec ss = {
  .format = PA_SAMPLE_S16LE,
  .rate = 44100,
  .channels = 2
};

void* audio_init(void){
  pa_simple *s = NULL;
  int error;

  if (!(s = pa_simple_new(NULL, "foospotify", PA_STREAM_PLAYBACK, NULL, "playback", &ss, NULL, NULL, &error))) {
    fprintf(stderr, __FILE__": pa_simple_new() failed: %s\n", pa_strerror(error));
    return NULL;
  }

  return s;
}

int audio_exit (void *device) {
  int error;

  if (pa_simple_drain((pa_simple *)device, &error) < 0) {
    fprintf(stderr, __FILE__": pa_simple_drain() failed: %s\n", pa_strerror(error));
  }

  pa_simple_free((pa_simple *)device);
}

int audio_play_pcm (void *device, struct pcm_data *pcm) {
  int error;

  if (pa_simple_write((pa_simple *)device,
		      pcm->buf, (size_t)pcm->len, &error) < 0) {
    fprintf(stderr, __FILE__": pa_simple_write() failed: %s\n", pa_strerror(error));
    return -1;
  }

  return 0;
}