SAM DUMONT

Freelance Cloud & AI Platform Engineer | ex-AWS
Data platforms · Garmin apps · Sensor firmware · Remote-first

Laeken, Belgium

// BLOG

// TAG: OPENCV

ai-agents audio backup ble bluetooth bot-detection claude code claude-code codex computer-vision debugging e-invoicing embedded esp32 ffmpeg firmware garmin gickup gitea github go gpu hdr kubernetes legacy-software live-photos nginx nrf52 numpy open-source opencv openerp peppol performance profiling protocol python reverse-engineering security self-hosting skills softdevice telemetry terraform video voice writing

Streaming a 4K film through Python because one FFmpeg command ate my disk

One FFmpeg filter graph over twelve 4K clips filled my RAM, then my swap, then my disk. Rewriting assembly as a Python frame loop with constant memory, the HDR and green-frame bugs that came with raw pipes, and a crossfade that went from 37.45 ms to 3.52 ms.

Read more →
ffmpeg python numpy opencv video performance claude-code
← All posts