What are the funding source requirements for a non-immigrant O visa application in Bangkok?

When applying for a non-immigrant O visa based on marriage to a Thai national in Bangkok, the general consensus is that there is no strict requirement for the funds to originate from abroad. However, you should verify this with immigration authorities and obtain their official handout detailing specific requirements for your visa application. It's also noted that you need to maintain a minimum balance of 800,000 baht in your bank account.