Mimir/docs/implementation-plan.md

Implementation Plan

Implemented

• Repo-local persistence machinery.
• First architecture map.
• Example config for one video source plus two audio sources.
• Sender device discovery script.
• Sender launch script with dry-run mode and per-source FFmpeg commands.
• OBS receiver setup notes.
• Neighbor sender deployment under C:\Meta\LocalCastBridge.
• Madman's desktop start/stop launchers for the sender.

Temporary

• Audio and video are separate SRT endpoints. This preserves OBS mixing authority but may need latency tuning.
• Audio defaults to AAC inside MPEG-TS for compatibility; test Opus later only if there is a concrete reason.
• Desktop capture uses gdigrab first because it is broadly available. ddagrab is a candidate once the installed FFmpeg build is confirmed.
• The scripts assume Windows sender and OBS receiver on the same LAN.

Next

1. Add OBS Media Sources on the receiver for ports 5100 and 5101.
2. Smoke-test the video endpoint in OBS.
3. Smoke-test the Focusrite endpoint in OBS.
4. Choose and validate a real system-output loopback device if desktop/game audio is required separately.
5. Tune SRT latency and FFmpeg buffering for the local network.
6. Decide whether a small OBS scene/source generator is worth adding.
7. Reconsider plugin/fork only if standard OBS Media Source cannot preserve the required behavior.