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Welcome to my channel

Franklin Madrid - Streaming Backend Engineer

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PROJECTS // MEDIA_PIPELINES

Software-Defined Linear Playout Engine

// CLOUD INFRASTRUCTURE • PYTHON • FFMPEG • HLS

Designed a 24/7 cloud-native linear television broadcast system from scratch. This project demonstrates the intersection of traditional broadcast engineering and modern web delivery. It utilizes a Python orchestrator to dynamically manipulate HLS (HTTP Live Streaming) manifests.

The playout engine calculates time-deltas to generate sliding-window playlists, enabling infinite circular buffering of VOD assets. It handles stream routing, buffer management, and discontinuity transitions.

Core Architecture Features:

  • Dynamic Manifest Orchestration: Python daemon continuously calculates modulo arithmetic against server time to synchronize virtual timelines across multiple video sources.
  • Live Interrupt Control Plane: A Bash-driven "Crosspoint" vision mixer allows for instant manual overrides, cutting the main program out (PGM_OUT) to a live FFmpeg ingest feed.
  • Edge Caching & Auto-Recovery: Optimized Caddy reverse-proxy caching combined with custom hls.js buffer management to enable stream recovery and playback continuity during hard broadcast cuts.
  • Broadcast Multiviewer: A synchronized 6-screen grid monitoring all input pipelines and the master program output in real-time.

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ABOUT // WHOAMI

I have always had a passion for technology and it has lead me to explore many different areas of tech. I have experience with programming, networking, linux, and video engineering. I currently have my CCNA certification with plans to pursue the AWS-SAA and CKAD afterwards. After discovering media engineering, I have never found anything else in tech that remotely interests me as much. It blends my love for tech and my favorite pastime, watching TV! I am currently obsessing over Go and trying to create a new project that combines AWS with Go to create a distributed HLS/DASH manifest delivery system.

On a personal note, some things I enjoy are anime, sitcoms, video games, and obviously tech. I've recently joined a book club as I've wanted to get more into reading. I'm a big dog lover, but an even bigger cat admirer. Spring is my favorite season and my favorite bands are The Strokes, Radiohead, Title Fight, and Red Hot Chili Peppers. I like trying out different cafes on Sundays and going on walks when the weather is nice. I'm currently watching One Piece and reading The Passion According to G.H

BLOG // ENGINEERING_NOTES

Please Standby. Work in Progress

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