PAD_BUFSIZE
if (blksize > PAD_BUFSIZE ||
sc->sc_buflen > PAD_BUFSIZE - (unsigned)blksize)
if (sc->sc_wpos + blksize <= PAD_BUFSIZE) {
flen = PAD_BUFSIZE - sc->sc_wpos;
if (sc->sc_wpos >= PAD_BUFSIZE)
sc->sc_wpos -= PAD_BUFSIZE;
if (sc->sc_rpos + blksize < PAD_BUFSIZE) {
l = PAD_BUFSIZE - sc->sc_rpos;
uint8_t sc_audiobuf[PAD_BUFSIZE];