printf("incorrect/unparsable Rc: \"%s\"\n", s);
av_log(NULL, AV_LOG_ERROR, "incorrect/unparsable Rc: \"%s\"\n", s);
static int parse_string(const AVOption *c, char *s, void* strct, char **var){    if (!s)	return -1;    if (c->type == FF_OPT_TYPE_RCOVERRIDE) {	int sf, ef, qs;	float qf;	if (sscanf(s, "%d,%d,%d,%f", &sf, &ef, &qs, &qf) == 4 && sf < ef) {	    AVCodecContext *avctx = (AVCodecContext *) strct;	    RcOverride *o;	    avctx->rc_override = av_realloc(avctx->rc_override,					    sizeof(RcOverride) * (avctx->rc_override_count + 1));	    o = avctx->rc_override + avctx->rc_override_count++;	    o->start_frame = sf;	    o->end_frame = ef;	    o->qscale = qs;	    o->quality_factor = qf;	    //printf("parsed Rc:  %d,%d,%d,%f  (%d)\n", sf,ef,qs,qf, avctx->rc_override_count);	} else {	    printf("incorrect/unparsable Rc: \"%s\"\n", s);	}    } else	*var = av_strdup(s);    return 0;}