Ffmpeg Capture

Context: $ARGUMENTS

Quick start

• Record the screen: → Step 1 (list devices) → Step 2 (pick source) → Step 3 (run)
• Record webcam + mic: → Step 1 → Step 3 with webcam subcommand
• Record a region: → Step 3 with --crop (mac/linux) or -offset_x/-offset_y/-video_size (Windows gdigrab)
• Record system audio (mac): install BlackHole first → Step 2 (route via virtual device)
• Just list devices: python3 scripts/capture.py list-devices

When to use

• User wants a screencast, demo recording, or desktop capture to a file.
• User wants to record webcam/microphone/system audio to disk.
• User wants to enumerate which cameras/mics/screens ffmpeg can see.
• User wants low-latency or crash-safe recording (MKV-first, remux to MP4 after).