5 Commits

Author	SHA1	Message	Date
enricobuehler	67b7981096	feat(encode/nvenc-linux): LN1 phase-3 — multi-slice sub-frame encode DEFAULT-ON for Linux direct-NVENC ... Gates recorded (nvenc-subframe-slice-output.md Phase 3): loss-harness curve identical streamed-vs-whole; adversarial security review clean; live .21 3-leg A/B — streamed 0 corrupted frames, p99 8527→5363 µs vs sliced-whole, first_slice_us ~500 µs of a ~1250 µs encode reaching the send thread; wire bytes rate-governed under CBR + 1-frame VBV (the ~1-2 % slice-header cost is absorbed by rate control, not added to the wire). GameStream: plane has zero code diff (own RTP packetizer; shares only untouched send_pacing); a live Moonlight re-test joins the standing owed Moonlight item. - resolve_slices(codec, default): env 1..=32 wins (1 = the NEW explicit single-slice escape), else the backend default — 4 on Linux direct-NVENC, 1 elsewhere. resolve_subframe(default_on): PUNKTFUNK_NVENC_SUBFRAME tri-state (0 = never, 1 = force, unset = backend default). - Linux nvenc_cuda: resolves both ONCE in query_caps — the sub-frame default is gated on the GPU's SUBFRAME_READBACK cap so an unsupporting GPU never has enableSubFrameWrite forced into its init params — and feeds the same resolved values to build_config, build_init_params (open AND in-place reconfigure) and the chunked-poll latch. - Windows: env-only as before (async path untouched, byte-identical config for unset env); LowLatencyConfig.slices + the explicit subframe param replace the shared env reads. - Tests: chunked e2e now runs at the DEFAULTS (no knobs); the fallback test becomes the escape test (SLICES=1 disarms; SUBFRAME=0 disarms while 4-slice encode continues on the plain poll path). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-20 23:44:41 +02:00
enricobuehler	9d3b114fd6	feat(encode/nvenc): LN1 phase-1 — slice-boundary chunked encoder poll (poll_chunk/AuChunk) ... The encoder half of sub-frame slice output (latency §7 LN1, planning design/nvenc-subframe-slice-output.md Phase 1): with PUNKTFUNK_NVENC_SLICES=N + PUNKTFUNK_NVENC_SUBFRAME=1 on a sync depth-1 session, Encoder::poll_chunk hands the in-flight AU out as slice-boundary chunks read through doNotWait sub-frame locks while the tail is still encoding — the readback loop the on-hw probe validated (~200 µs slice spacing on the 5070 Ti), productionized. - codec.rs: AuChunk (AU metadata on the first chunk, `last` closes the AU; chunks concatenate to exactly the poll() bytes) + supports_chunked_poll / poll_chunk trait surface. Default impl wraps poll() as one self-closing chunk, so a chunk-driven consumer works against every backend. - nvenc_cuda: chunked readback cut at slice boundaries only (bitstream size at n reported slices = end of slice n, Annex-B contiguous); completion is NEVER numSlices alone — one finishing BLOCKING lock is the authority and the wedge watchdog, so the final chunk blocks exactly like sync poll (the depth-1 pump contract; 6dc195f9 bug class). Keyframe on early chunks is the submit-time IDR prediction (exact under P-only/infinite-GOP), cross-checked at finish. Debug builds shadow-check emitted chunks against the finished AU prefix. Mutually exclusive with pipelined retrieve (gated off when async_rt exists, dropped by the escalation rebuild); composes with stream-ordered submit. - nvenc_core: slices_env/subframe_requested shared parses so the config author and the chunked-poll arming can't disagree. - TrackedEncoder forwards both new methods (the set_wire_chunking trap class). Host loop untouched — Phase 2 (VIDEO_CAP_STREAMED_AU seal/send) consumes this. On-hw: nvenc_cuda_chunked_poll_end_to_end + nvenc_cuda_chunked_poll_fallback_whole_au. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-20 20:53:32 +02:00
enricobuehler	5a27c02738	feat(encode/nvenc): LN1 phase-0 — slice-count + sub-frame-readback knobs and the slice-timing probe ... PUNKTFUNK_NVENC_SLICES=N (2..=32, default off) splits H.264/HEVC frames into N slices (sliceMode 3); PUNKTFUNK_NVENC_SUBFRAME=1 (default off) arms enableSubFrameWrite + reportSliceOffsets on sync sessions only. Both experimental groundwork for sub-frame slice output (plan §7 LN1). nvenc_cuda_subframe_slice_probe (on-hardware, ignored) answers the LN1 go/no-go: spins lock_bitstream(doNotWait) against an in-flight frame and prints the (t_us, status, numSlices, bytes) timeline — incremental slice availability and its spacing, or all-at-completion. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-20 19:44:54 +02:00
enricobuehler	59b6d3796b	perf(encode/nvenc-linux): LN0 — sampled submit/retrieve-lock split, sub-frame caps, zeroReorderDelay ... Latency plan §7 LN0 (Linux/NVIDIA encode follow-on): - sampled PUNKTFUNK_PERF submit split (copy/blend/map/pic) in nvenc_cuda — the host loop's submit_us folds all four together; the D2D input copy is the LN2 zero-copy target and now measurable on its own - sampled blocking lock_bitstream timing on pf-nvenc-out — in two-thread mode the host loop's wait_us wraps a non-blocking poll, so the real encode wait was measured by no timer - caps probe + log SUPPORT_SUBFRAME_READBACK / SUPPORT_DYNAMIC_SLICE_MODE (LN1 sub-frame slice-output prerequisites, fleet visibility) - explicit zeroReorderDelay=1 in the shared low-latency config (P-only + no lookahead has no reordering anyway; pins the bit against preset or driver drift; shared with the Windows backend) Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-20 19:38:22 +02:00
enricobuehler	9a36ea2132	refactor(host/W6.2): extract the video encode backends into the pf-encode crate ... encode.rs + encode/* (NVENC, VAAPI, native AMF, AMF/QSV ffmpeg, direct-SDK NVENC/CUDA, raw Vulkan-Video, PyroWave, openh264) move into crates/pf-encode behind one Encoder trait + open_video selector (plan §W6). The crate speaks the shared frame vocabulary (pf-frame: CapturedFrame/PixelFormat + the DXGI identity D3d11Frame/make_device) and pf-zerocopy (CUDA context/buffers), and NEVER pf-capture — the capture→encode edge is one-way (ZeroCopyPolicy, prior commit). Dep moves: the heavy encoder deps (ffmpeg-next, the NVENC SDK, openh264, pyrowave-sys) move from the host to pf-encode; the host's nvenc/amf-qsv/vulkan-encode/pyrowave features now FORWARD to pf-encode/*. The host keeps a mod-encode shim (pub use pf_encode) so every crate::encode::* path (negotiator + GameStream/native/mgmt planes) is unchanged. resolve_render_adapter_luid moves from the host's windows/win_adapter.rs into pf-gpu (both pf-encode and pf-capture need it as a peer of GPU selection); its 5 call sites (encode amf/nvenc, capture idd_push/synthetic_nv12, vdisplay manager) rewire to pf_gpu::resolve_render_adapter_luid and win_adapter.rs is deleted. pf-frame's make_device gains a # Safety section (public-unsafe-fn lint, latent since the pf-frame carve — a full-workspace -D warnings clippy catches it). Verified: Linux clippy -D warnings (pf-encode + host nvenc,vulkan-encode,pyrowave --all-targets) + 13/13 pf-encode + 299/299 host tests; Windows clippy -D warnings (pf-encode nvenc,amf-qsv --all-targets + host nvenc,amf-qsv --all-targets) Finished exit 0. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-07-17 10:42:51 +02:00