Add ts_crc32_section_check()

tsfuncs.h

 // CRC
 uint32_t        ts_crc32      (uint8_t *data, int data_size);
 uint32_t		ts_crc32_section			(struct ts_section_header *section_header);
+int				ts_crc32_section_check		(struct ts_section_header *section_header, char *table);
 
 // Misc
 int				dec2bcd						(int dec);

tsfuncs_crc.c

 	// +3 to include the first 3 bytes before section_length field
 	return ts_crc32(section_header->section_data, section_header->section_length + 3);
 }
+
+int ts_crc32_section_check(struct ts_section_header *section_header, char *table) {
+	// +3 to include the first 3 bytes before section_length field
+	uint32_t check_crc = ts_crc32(section_header->section_data, section_header->section_length + 3);
+
+	if (check_crc != 0) {
+		ts_LOGf("!!! Wrong %s table CRC! It should be 0 but it is 0x%08x (CRC in data is 0x%08x)\n",
+			table,
+			check_crc,
+			section_header->CRC);
+		return 0;
+	}
+	return 1;
+}