Fix PUSI check.

cat.c

 
 	if (ts_packet_header_parse(ts_packet, &ts_header)) {
 		// Received PUSI packet before table END, clear the table to start gathering new one
-		if (cat->ts_header.pusi)
+		if (ts_header.pusi && cat->ts_header.pusi)
 			ts_cat_clear(cat);
 		if (!cat->ts_header.pusi)
 			cat->ts_header = ts_header;

eit.c

 		if (ts_header.pid != 0x12)
 			goto OUT;
 		// Received PUSI packet before table END, clear the table to start gathering new one
-		if (eit->ts_header.pusi)
+		if (ts_header.pusi && eit->ts_header.pusi)
 			ts_eit_clear(eit);
 		if (!eit->ts_header.pusi)
 			eit->ts_header = ts_header;

nit.c

 		if (ts_header.pid != 0x10)
 			goto OUT;
 		// Received PUSI packet before table END, clear the table to start gathering new one
-		if (nit->ts_header.pusi)
+		if (ts_header.pusi && nit->ts_header.pusi)
 			ts_nit_clear(nit);
 		if (!nit->ts_header.pusi)
 			nit->ts_header = ts_header;

pat.c

 		if (ts_header.pid != 0x00)
 			goto OUT;
 		// Received PUSI packet before table END, clear the table to start gathering new one
-		if (pat->ts_header.pusi)
+		if (ts_header.pusi && pat->ts_header.pusi)
 			ts_pat_clear(pat);
 		if (!pat->ts_header.pusi)
 			pat->ts_header = ts_header;

pmt.c

 
 	if (ts_packet_header_parse(ts_packet, &ts_header)) {
 		// Received PUSI packet before table END, clear the table to start gathering new one
-		if (pmt->ts_header.pusi)
+		if (ts_header.pusi && pmt->ts_header.pusi)
 			ts_pmt_clear(pmt);
 		if (!pmt->ts_header.pusi)
 			pmt->ts_header = ts_header;

privsec.c

 
 	if (ts_packet_header_parse(ts_packet, &ts_header)) {
 		// Received PUSI packet before table END, clear the table to start gathering new one
-		if (privsec->ts_header.pusi)
+		if (ts_header.pusi && privsec->ts_header.pusi)
 			ts_privsec_clear(privsec);
 		if (!privsec->ts_header.pusi)
 			privsec->ts_header = ts_header;

sdt.c

 		if (ts_header.pid != 0x11)
 			goto OUT;
 		// Received PUSI packet before table END, clear the table to start gathering new one
-		if (sdt->ts_header.pusi)
+		if (ts_header.pusi && sdt->ts_header.pusi)
 			ts_sdt_clear(sdt);
 		if (!sdt->ts_header.pusi)
 			sdt->ts_header = ts_header;

tdt.c

 		if (ts_header.pid != 0x14)
 			goto OUT;
 		// Received PUSI packet before table END, clear the table to start gathering new one
-		if (tdt->ts_header.pusi)
+		if (ts_header.pusi && tdt->ts_header.pusi)
 			ts_tdt_clear(tdt);
 		if (!tdt->ts_header.pusi)
 			tdt->ts_header = ts_header;