enricobuehler
a913042367
Ground-up low-latency streaming stack per docs/implementation-plan.md. M1 is
complete and tested; Linux host backends are cfg-gated stubs to be filled in on
real hardware (M0/M2).
lumen-core (built + tested on macOS/aarch64 — 21 tests):
- fec: ErasureCoder over GF(2^8) (reed-solomon-erasure, Moonlight-compatible)
and GF(2^16) Leopard-RS (reed-solomon-simd, the >1 Gbps wall-breaker); proptested
- packet: zero-copy #[repr(C)] framing, multi-block, FEC-aware reassembly
- crypto: AES-128-GCM with per-direction nonce salts + sequence-as-AAD
- session: host submit / client poll hot paths + input; loopback & UDP transports
- abi: opaque handles, versioned LumenConfig, panic guards; cbindgen-generated header
- acceptance: Rust loopback+proptest and a C harness that links the staticlib
Scaffold (compiles green on all platforms): lumen-host (vdisplay/capture/encode/
inject/web/pipeline seams under cfg(linux)), lumen-client-rs, tools/{loss-harness,
latency-probe}, Apple/Android client stubs, Gitea CI, docs.
Hardened against a multi-agent adversarial review (13 verified findings fixed,
regression-tested): reassembler memory-DoS bounds + block-consistency validation,
GCM nonce-reuse direction separation, ABI struct_size guard + range checks, FEC
shard-length guards, shard_payload datagram bound, key zeroization + Debug redaction.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
23 lines
1023 B
Markdown
23 lines
1023 B
Markdown
# lumen Apple client (M5)
|
|
|
|
Swift + VideoToolbox (decode) + Metal (present) + SwiftUI, linking `lumen-core` through
|
|
the generated C ABI — **no glue layer**. Imports `include/lumen_core.h` via a module map.
|
|
|
|
## Wiring
|
|
|
|
1. Build the core as a static or dynamic library for Apple targets:
|
|
```sh
|
|
rustup target add aarch64-apple-ios aarch64-apple-darwin
|
|
cargo build -p lumen-core --release --target aarch64-apple-darwin # liblumen_core.a / .dylib
|
|
```
|
|
2. Expose the C ABI to Swift with a module map (`module.modulemap` here) that points at
|
|
the checked-in header `../../include/lumen_core.h`.
|
|
3. In Swift: create a client `LumenSession`, `lumen_client_poll_frame` on a display-link
|
|
thread, feed the access unit to a `VTDecompressionSession`, present the `CVImageBuffer`
|
|
with Metal aligned to the screen's refresh (frame pacing, plan §7).
|
|
|
|
## Status
|
|
|
|
Scaffold. The client half of `lumen_core` (`poll_frame`, FEC recovery, reassembly) is
|
|
complete and tested; this target adds the platform decode + present.
|