orbiscreen | feat: WebTransport Annex-B, VBV, reliable IDR, and FEC - #80
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Serve the UI over HTTPS on signaling+2 and play Annex-B access units with WebTransport plus WebCodecs. Persist the self-signed certificate so the browser pin survives a daemon restart. Pin quinn-proto 0.11.16 so dropped datagrams do not abort the process.
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Cap the encoder VBV at one frame of CBR. Send IDR plus SPS/PPS on a reliable stream and Reed-Solomon FEC on P-frame datagrams. Hold the decoder until the next IDR instead of dropping mid-GOP P-frames.
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Just merged this into main and tagged v0.29.0, thanks @sentinelt. WebTransport, the VBV tweaks, and Reed-Solomon FEC cut latency way down across both web and Android. Nice on the test coverage and docs in docs/FRAME_TRANSPORT.md too. Appreciate the PR, great addition to the project. |
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Summary
Two commits on top of v0.28.9:
WebTransport Annex-B web client — Chromium plays Annex-B over WebTransport + WebCodecs on
signaling+2. P-frames are QUIC datagrams; hello/ping/IDR stay on the control stream. HTTPS serves the UI; the self-signed cert is persisted (14-day WebTransport cap). Pinsquinn-proto0.11.16.One-frame VBV, reliable IDR, and P-frame FEC — Encoder CPB is one frame of CBR. IDR + SPS/PPS go on the reliable stream (
GET /idr/ WT control). Reed-Solomon FEC covers P-frame datagrams. Android holds until the next IDR instead of dropping mid-GOP P-frames.Test plan
origin/mainv0.28.9 (per-client displays + attach fallback kept).cargo fmt --check,cargo test -p orbiscreen-transport --lib,node --test clients/web/annexb.test.js.192.168.39.177→:8789, PMTU 1472). Video playing. Tap bound toVirtual-Orbi-9548bd9a.https://192.168.39.191:8790. Daemon:webtransport video via QUIC datagrams. FingerTouchbound toVirtual-Orbi-6b5efbb0.