Check if PUSI packet comes before table/pes gathering ihas finished.

Without this check broken transport streams that start new tables
before finishing old ones cause psi gathering to fail.

cat.c

 	memset(&ts_header, 0, sizeof(struct ts_header));
 
 	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)
+			ts_cat_clear(cat);
 		if (!cat->ts_header.pusi)
 			cat->ts_header = ts_header;
 	}

eit.c

 		// EIT should be with PID 0x12
 		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)
+			ts_eit_clear(eit);
 		if (!eit->ts_header.pusi)
 			eit->ts_header = ts_header;
 	}

nit.c

 		// NIT should be with PID 0x10
 		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)
+			ts_nit_clear(nit);
 		if (!nit->ts_header.pusi)
 			nit->ts_header = ts_header;
 	}

pat.c

 		// PAT should be with PID 0x00
 		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)
+			ts_pat_clear(pat);
 		if (!pat->ts_header.pusi)
 			pat->ts_header = ts_header;
 	}

pes.c

 		goto OUT;
 
 	if (ts_header.pusi) {
+		// Received PUSI packet before PES END, clear the table to start gathering new one
+		if (pes->ts_header.pusi)
+			ts_pes_clear(pes);
 		uint8_t stream_id = 0;
 		int pes_packet_len = 0;
 		if (payload[0] == 0x00 && payload[1] == 0x00 && payload[2] == 0x01) { // pes_start_code_prefix

pmt.c

 	memset(&ts_header, 0, sizeof(struct ts_header));
 
 	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)
+			ts_pmt_clear(pmt);
 		if (!pmt->ts_header.pusi)
 			pmt->ts_header = ts_header;
 	}

privsec.c

 	memset(&ts_header, 0, sizeof(struct ts_header));
 
 	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)
+			ts_privsec_clear(privsec);
 		if (!privsec->ts_header.pusi)
 			privsec->ts_header = ts_header;
 	}

sdt.c

 		// SDT should be with PID 0x11
 		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)
+			ts_sdt_clear(sdt);
 		if (!sdt->ts_header.pusi)
 			sdt->ts_header = ts_header;
 	}

tdt.c

 		// TDT/TOT should be with PID 0x11
 		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)
+			ts_tdt_clear(tdt);
 		if (!tdt->ts_header.pusi)
 			tdt->ts_header = ts_header;
 	}