FFmpeg is the backbone of countless media workflows—encoding, decoding, streaming. But when you expose it behind an Identity-Aware Proxy (IAP), the rules change. You must deal with authentication headers, token validation, and restricted access at the network edge before the first byte moves.
An Identity-Aware Proxy acts as a gatekeeper. It checks who is calling your FFmpeg endpoint and whether they have the right to proceed. Google Cloud IAP, AWS integrations, or custom solutions enforce this verification. If the handshake fails, FFmpeg never sees the request.
To use FFmpeg behind IAP, you need direct control over how FFmpeg sends and receives requests. HTTP headers must carry OAuth2 tokens or signed credentials that IAP will accept. FFmpeg supports custom headers using the -headers flag:
ffmpeg -headers "Authorization: Bearer <TOKEN>"\
-i https://iap-protected.example.com/stream \
output.mp4
Your workflow should refresh tokens automatically. Static tokens expire, breaking long-running jobs. Use scripts or wrapper services to fetch new tokens from your identity provider and inject them into every FFmpeg call.