Live-Action AI Promo Generator

I need a complete AI-powered workflow that turns basic product or campaign details into short, live-action promotional videos aimed squarely at brand awareness. The system should accept a brief (headline, key message, logo, colour palette and a couple of reference images), pull or generate suitable live-action footage, blend in on-brand motion graphics or text overlays, add background music, then export ready-to-post files in common social formats (16:9, 1:1, 9:16).

Core expectations
• End-to-end automation driven by AI or a mix of AI plus stock-footage APIs.
• Simple web or desktop interface where I enter the brief and choose length (15 s, 30 s, 60 s).
• On-brand styling every time—logo placement, colours and fonts carried through automatically.
• Options for quick scene-level edits before final render.
• Output: MP4 files + project file, together with clear setup instructions so I can run the generator in-house.

Preferred tech is flexible—Python, Node, or no-code platforms, as long as the final solution is reliable and doesn’t lock me into expensive per-render fees. If you have proven experience with tools like RunwayML, Synthesia, Pika, or similar AI video stacks, mention it.

I will consider the job complete when I can:
1. Install or deploy the solution on my machine or cloud account.
2. Feed it a sample brief and receive three polished, brand-ready live-action promos within minutes.
3. Make minor text or music swaps without digging into code.

Let me know what APIs, libraries or services you plan to use, the estimated turnaround, and any licensing implications for generated footage and music.