Wire M0's portal desktop capture into the GameStream video plane: with
LUMEN_VIDEO_SOURCE=portal the stream captures the headless wlroots desktop
(PipeWire RGB) instead of the synthetic pattern, opens NVENC from the first
captured frame's format/size, and streams it. Verified live: a stock Moonlight
client shows the real 5120×1440 desktop at ~42 fps (release build).
- capture.rs: FastSyntheticCapturer (cheap fill pattern, real-time at 5K) so both
sources share the Capturer trait
- stream.rs: source select (portal | synthetic), encoder opened from the first
frame, wall-clock 90 kHz RTP timestamps (correct under a variable capture rate)
Note: the CPU-copy RGB→rgb0 path caps ~42 fps at 5K (single-threaded); dmabuf
zero-copy is the deferred optimization (plan §9).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
A stock Moonlight client now decodes H.265 from the lumen host end-to-end
(verified at 5120×1440@120 on RTX 5070 Ti):
- control.rs: ENet control host on UDP 47999 (rusty_enet). Moonlight starts the
control stream before video (STAGE_CONTROL_STREAM_START precedes _VIDEO_), so it
must be up first — this was the blocker behind the earlier "error 35".
- stream.rs: video data plane — on RTSP PLAY, learn the client endpoint from its
ping, NVENC-encode at the negotiated mode, packetize (GameStream RTP/NV/FEC),
send over UDP 47998; stops when the client disconnects.
- rtsp.rs: ANNOUNCE → StreamConfig (resolution/fps/packetSize/bitrate/codec), PLAY
starts the stream, TEARDOWN stops it; PairStatus=1 over the mutual-TLS port.
P1.3 uses a synthetic test pattern + data-shards-only FEC (clean-LAN). Next: real
portal desktop capture, input injection (decode control → uinput), nanors-exact FEC,
encryption, audio.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
enricobuehler