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;
}
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;
}
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);
}