getUserMedia() + Python Tornado server + FFMPEG realtime convertion

Hello, I need someone experienced in FFMPEG library. I need to correct my code to get realtime, no latency stream convertion from WebM to FLV. My code works as follow: 1. getUserMedia() (webcam stream) and send the stream via MediaRecorder API to Python Tornado websocket with JS WebSocket 2. When data is received by Tornado server ffmpeg processing starts using subprocess and pipe to write data to ffmepg library. 3. Incoming stream is in WebM format and needs to be converted to FLV Almost all works, however I have problem with the last point - convertion of the data. Need help with that. I will provide freelancer with my existing code for making proper changes. The problem I am facing is huge latency (1-2 mins) when trying to convert the stream. I believe it's related to FFMPEG configuration. Please bid only if you have strong experience with FFMPEG library.