Files
punktfunk/crates/punktfunk-host/src/capture
enricobuehler 8d6cbb81fe fix(host/windows): merge host PUNKTFUNK_* env into the WGC helper's environment
CreateProcessAsUserW gives the spawned helper the *user's* environment block, so
the host's PUNKTFUNK_ENCODER=nvenc (and ZEROCOPY/PERF/…) were dropped and the
helper fell back to the software (H.264-only) encoder — the client negotiated
H265 → "WGC helper exited". `merged_env_block` now parses the user block, strips
any PUNKTFUNK_* it carried, overlays this (host) process's PUNKTFUNK_* vars, and
passes the merged UTF-16 block.

Validated live on the RTX 4090 (host as SYSTEM): the helper spawns via
CreateProcessAsUserW, runs WGC with no hang (HDR FP16 BT.2020 PQ), opens NVENC
(D3D11 Main10), and relays AUs over the pipe — client-rs decoded 411 HEVC
Main-10 frames over the LAN. Step 4 (spawn + relay) complete.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-16 08:05:43 +00:00
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