コード例 #1
0
ファイル: soundProcessor.cpp プロジェクト: jolygit/code
bool SoundProcessor::Record(){
  SetUpRecorder();
  snd_pcm_sframes_t fwdframes=snd_pcm_forwardable(handle_m);
  printf("forwarding %d\n",fwdframes);
  snd_pcm_forward(handle_m,fwdframes);
  while (true) {
    rc_m = snd_pcm_readi(handle_m, buffer_m, frames);
    if (rc_m == -EPIPE) {
      /* EPIPE means overrun */
      fprintf(stderr, "overrun occurred\n");
      snd_pcm_prepare(handle_m);
    } else if (rc_m < 0) {
      fprintf(stderr,
              "error from read: %s\n",
              snd_strerror(rc_m));
    } else if (rc_m != (int)frames) {
      fprintf(stderr, "short read, read %d frames\n", rc_m);
    }
    rc_m = write(1, buffer_m, size);
    if (rc_m != size)
      fprintf(stderr,
              "short write: wrote %d bytes\n", rc_m);
  }

  snd_pcm_drain(handle_m);
  snd_pcm_close(handle_m);
  free(buffer_m);
  return true;
}
コード例 #2
0
static snd_pcm_sframes_t snd_pcm_file_forwardable(snd_pcm_t *pcm)
{
	snd_pcm_file_t *file = pcm->private_data;
	snd_pcm_sframes_t res = snd_pcm_forwardable(pcm);
	snd_pcm_sframes_t n = snd_pcm_bytes_to_frames(pcm, file->wbuf_size_bytes - file->wbuf_used_bytes);
	if (res > n)
		res = n;
	return res;
}
コード例 #3
0
snd_pcm_sframes_t snd_pcm_generic_forwardable(snd_pcm_t *pcm)
{
    snd_pcm_generic_t *generic = pcm->private_data;
    return snd_pcm_forwardable(generic->slave);
}