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Author	SHA1	Message	Date
enricobuehlerandClaude Opus 5	ead37d066f	perf(encode/nvenc-linux): drop the bring-up probe left on the per-frame blend path ... `33121ece` added a block explicitly labelled "TEMP KWin composite probe (DROP BEFORE MERGE)" to prove the cursor blend was dispatching. It merged, and has been running on every blended frame since: an atomic fetch_add per frame plus a `tracing::info!` with seven computed fields every 512 frames, on the submit hot path of the default-on Linux direct-NVENC backend. The signal it existed for is already covered — the failure arm above it warns once with the dispatch error, and the `else` arm warns when an overlay arrives with no blend at all. What is deleted is only the success-path telemetry. Verified `-D warnings --all-targets` + tests on Linux (default; shipped nvenc,vulkan-encode,pyrowave), and `clippy --features vulkan-encode,pyrowave` on real AMD RDNA3 hardware. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>	2026-07-25 03:48:59 +02:00
enricobuehlerandClaude Opus 5	310b85f155	fix(encode): a forced-Vulkan pref must not advertise codecs that arm will refuse ... With `PUNKTFUNK_ENCODER=vulkan`, `open_video_backend`'s vulkan arm bails outright for anything that is not HEVC/AV1 ("the Vulkan Video encoder supports HEVC + AV1; the session negotiated {codec:?}"). But `host_wire_caps` for that same pref fell through to the VAAPI probe / static superset, which includes H.264 — so the host advertised H.264, a client could negotiate it, and the session died at encoder open. The pref now contributes a CEILING that is intersected with the device probe, never a replacement for it. That distinction is the whole fix: pinning a static HEVC|AV1 would have ADDED AV1 on the AMD/Intel hosts whose probe currently withholds it (pre-RDNA3, pre-Arc), re-creating this very bug for a different codec. Intersecting can only ever narrow. Without the `vulkan-encode` feature the pref cannot open anything at all — that arm bails with "requires a build with --features vulkan-encode" — so the ceiling is empty there rather than optimistic. Costs nothing on the handshake path: a `&str` match plus a const-folded `cfg!`. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>	2026-07-25 03:17:45 +02:00
enricobuehlerandClaude Opus 5	087a3e358a	fix(encode/vaapi): key the entrypoint cache on the device, not just the codec ... `LP_MODE` cached the resolved VAAPI entrypoint (full-feature `EncSlice` vs low-power `EncSliceLP`/VDEnc) in a process-global array indexed by codec alone. That is not a staleness bug, it is a session-killer, because the cache is load-bearing: once a mode is latched the open tries exactly ONE mode and the `[false, true]` fallback is gone. Latch low-power on an Intel Arc (Gen12+ removed the full-feature entrypoints, so it is the only one that works there), then switch the web-console GPU preference to an AMD dGPU. `render_node()` follows that preference, so every VAAPI open now goes to radeonsi passing `low_power=1`, which it rejects — with no full-feature retry, for the process lifetime. `probe_can_encode` reports all-false (so the advertisement silently falls back to the static superset) AND the session's own encoder open fails. Now keyed on (render node, codec, bit depth): - The render node because the entrypoint is a property of the DEVICE libva opens, and it is literally what `render_node()` hands libva — so key and device cannot describe different GPUs. Deliberately not `pf_gpu::selection_key()`, which can name a different adapter than the node actually opened. - The bit depth because Main10 and 8-bit can resolve to different entrypoints on the same device; one shared slot let an 8-bit answer pin the 10-bit open, i.e. HDR under-advertisement. Verified `-D warnings --all-targets` + tests on Linux (default; shipped nvenc,vulkan-encode,pyrowave). The multi-GPU switch itself needs a box with two VAAPI-capable adapters — owed on-glass. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>	2026-07-25 03:17:44 +02:00
enricobuehlerandClaude Opus 5	7536f7319a	fix(gamestream): a software-encode host must advertise H.264 only ... `base_codec_mode_support` fell through to the static superset (H.264|HEVC|AV1) on a GPU-less host, so Moonlight negotiated HEVC or AV1 and the session then died at encoder open with "the software encoder emits H.264 only" — openh264 encodes nothing else. The native plane's twin of this function, `pf_encode::Codec::host_wire_caps`, has gated on exactly this since it was written; this one never did. Deliberately a local gate rather than delegating wholesale to `host_wire_caps()`. Delegation is the drift-proof shape and was the first design, but on Windows it re-runs the DXGI adapter enumeration several times per `/serverinfo` GET — the probe helpers each sample it uncached — and this endpoint is polled by every client. The software case is a plain config read, so it costs nothing here. Recorded in a comment rather than fixed: the static `MaxLumaPixelsHEVC` in the serverinfo XML still advertises an HEVC limit even when the mask now drops HEVC. Harmless (Moonlight gates capability on the mask, not the limit) but it is a second, now-inconsistent advertisement. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>	2026-07-25 02:41:57 +02:00
enricobuehlerandClaude Opus 5	4d9f94e0a4	docs(encode): record why the production loops must not call Encoder::flush ... `flush` looked dead — the only caller in the host is the `spike` dev subcommand — so an audit sweep filed it as "wire it in or delete it". Both are wrong, and without this note the next sweep will re-file it. Wiring it in is refuted by control flow: both encode loops reach their exit only AFTER the transport is gone (client disconnected, or the session stopped), so the AUs a flush would recover have nowhere to go. And flush is the one call on this trait that can BLOCK on a wedged encoder, on exactly the teardown path a stopped session needs to finish promptly — the Linux direct-SDK NVENC retrieve-thread join is untimed, so flushing there could hang a session that is already ending. Deleting it is refuted by real consumers: `spike` encodes a FINITE clip and wants the tail, and the `#[ignore]`d hardware smoke tests across the backends assert the drain contract on real GPUs. Those are finite-stream users; a live session is not one. Doc only, no behaviour change. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>	2026-07-25 02:41:57 +02:00
enricobuehlerandClaude Opus 5	ef239691df	feat(encode): make cursor blending a queryable capability, not an assumption ... `open_video`'s `cursor_blend` argument was a request with no answer: lib.rs did `let _ = cursor_blend;` and only three backends ever read `CapturedFrame::cursor`. So a session could ask for a composited pointer, get a backend that silently discards it, and stream with no mouse cursor and nothing in the logs. Two separately-confirmed audit findings — the VAAPI dmabuf path and the libav-NVENC CUDA path — are symptoms of that one hole. `EncoderCaps::blends_cursor` makes it a fact each backend states. The four exhaustive `EncoderCaps { .. }` constructors mean adding the field is a compile error until every backend answers, which is the enforcement mechanism for future backends rather than a side effect. Vulkan Video answers from its ACTUAL configured source rather than statically: only the CSC path composites (`prep_cursor` feeds the compute shader), while the RGB-direct/EFC front-end and the native-NV12 source have no compositing stage at all and merely warn once that the pointer is being dropped. `open_video` warns when a session asked for blending and the opened backend cannot deliver it. A warning is deliberately all it does: `open_video` cannot re-plan capture, so refusing would trade a missing pointer for a dead session. The host owns `plan.cursor_blend` and is the only layer that can fall back to capturer-side compositing — this gives it something to base that on. Enforcement is NOT included. The reviewed design proposed refusing the client's host-composite flip to keep the client drawing its own pointer, but `CursorRenderMode` is client->host only: there is no host->client counterpart, so refusing yields no pointer at all — the same failure it claimed to prevent. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>	2026-07-25 02:41:57 +02:00
enricobuehlerandClaude Opus 5	ab63e0dad3	fix(encode/nvenc-windows): fail safe when nobody sets the input ring depth ... `set_input_ring_depth` is a DEFAULTED trait method, so a caller that forgets it fails silently — and one did. The GameStream loop opens an encoder (gamestream/stream.rs:671 and the rebuild at :831) and never called it, while the Windows IDD-push capturer declares a ring of 2 and `async_inflight_cap()` defaults to 4. With PUNKTFUNK_NVENC_ASYNC=1 a Moonlight session therefore pipelined four encodes against a two-texture ring, letting the capturer rotate a texture out from under a live encode: torn or mixed frames, never an error — precisely the corruption the cap exists to prevent, and precisely what the trait doc warns "fails silently and intermittently". Guarded at the single point of CONSUMPTION rather than by plumbing the setter into every loop: `input_ring_depth` has exactly one reader in the workspace, so one fail-safe covers every caller including ones not yet written, whereas fixing N call sites only fixes the N someone remembered. An unconfigured ring is now treated as the shallowest any capturer here declares, so the unconfigured path degrades to less pipelining — a latency cost, not corruption. The two GameStream sites also pass the REAL depth, because the fail-safe is a floor, not a substitute: `idd_depth` is configurable and a deeper ring is free pipelining the fallback would forfeit. Default (sync) sessions are unaffected — the cap is only read while the async retrieve thread exists, and that is opt-in. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>	2026-07-25 02:41:57 +02:00
enricobuehlerandClaude Fable 5	78fe77b049	feat(host/encode): de-escalate the latency escalation once cadence holds clean ... Escalate-and-hold's missing half. The contention escalation (capture depth, then the NVENC pipelined retrieve) was permanent: one sustained overrun — even one CAUSED by the ABR overdrive's rebuild storms — cost the session its depth-1 latency and its sub-frame streaming forever, and `encode_us` reported queue depth instead of ASIC time for the rest of the session. - The leaky bucket now keeps scoring after escalation. A sustained every-frame-on-cadence run (~5 s at 120 fps) winds back one stage in reverse order: pipelined retrieve first (its rebuild restores the IO-stream binding and sub-frame chunked streaming), then capture depth back to 1. Attempts are paced by an exponential backoff (1 → 5 → 25 min, capped) — a workload that truly needs the escalation converges to keeping it, but never a permanent latch. - NVENC (Linux) implements `set_pipelined(false)`: a `want_sync` latch handled at the same drained safe point as the engage side (`maybe_disengage_async` mirrors `maybe_engage_async`); the lazy sync re-init re-arms everything and opens on an IDR. The stream loop polls until the switch lands, then re-runs the escalation warmup so the wind-back's own stall can't re-escalate it. `PUNKTFUNK_NVENC_ASYNC=1` (operator-pinned async) refuses the wind-back; the trait doc now specifies the two-way contract. - While escalated, `cadence_degraded` stays latched (bitrate climbs refused) even with the bucket drained: the headroom is spent, and climbs resuming mid-escalation would saw against it and starve the clean run. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-25 01:44:54 +02:00
enricobuehlerandClaude Fable 5	1b27706a9b	feat(host/native): truthful bitrate state — applied-rate adoption, ceiling pre-clamp, climb refusal ... Host half of the §ABR-overdrive fix. The stream loop now reads `Encoder::applied_bitrate_bps()` after every bitrate apply and stores THAT into `bitrate_kbps`/`live_bitrate` — the send pacer, web console, mgmt registry and control-task acks all track what the ASIC really targets instead of the requested rate (the pre-fix ack promised 1.01 Gbps while the encoder ran 794 Mbps, and the client controller climbed from the phantom base forever). - A short apply teaches `encoder_ceiling_kbps` (shared atomic): the stream loop pre-clamps incoming requests to it and SKIPS the apply when nothing would change — ending the reconfigure-reject → full-rebuild(~0.6 s + IDR) storm — and the control task resolves future SetBitrate acks against it, so the client learns the ceiling through the existing ack path (no wire change; old clients converge too). - `cadence_degraded` (shared flag, leaky-bucket level ≥ 10 or an escalated session): while set, the control task resolves climbs to the current applied rate — on a fat LAN no network signal ever stops a climb the encoder can't serve, and past the compute knee more bits only deepen the cadence miss. Descents always pass; they're the cure. - Escalation-warmup hygiene: an ABR rebuild stall (~70 missed deadlines at 120 fps, 3.5× the escalate threshold) and the backlog scored against a heavier rate no longer feed the latency escalation — rebuilds reset the leaky bucket and re-run the warmup; in-place down-steps clear the bucket. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-25 01:44:54 +02:00
enricobuehlerandClaude Fable 5	f3c3a9427b	feat(client/abr): learn the host's rate cap from short acks, and read host encode time as a signal ... Two client-side halves of the §ABR-overdrive fix (the 4K120 sessions that climbed to 1 Gbps against a 794 Mbps encoder and a 8.33 ms budget): - Short-ack cap learning: the host now resolves a climb it can't serve to what the encoder actually runs at (its codec-level ceiling, or the current rate while encode is behind cadence). Two consecutive identical short acks latch that value as a host cap the climb logic folds into its ceiling — one short ack stays a transient (a failed rebuild also acks short once). The cap is mode-scoped (cleared on an accepted mode switch, tracked via a mode generation counter the control task bumps) and re-probes one step after ~60 s parked clean, so a heavy-scene refusal can't quietly cap the whole session. - Host-encode-latency down-driver: the per-AU 0xCF `encode_us` the host already ships (and the overlay already draws) now feeds the controller through its own window accumulator — the overlay channel is lossy and embedder-drained, so the ABR gets a dedicated mirror of the decode-latency path. Baseline-relative like the decode signal (an escalated host reports encode_us inflated by ~a frame of queue depth; an absolute budget threshold would read permanently red), with the baseline rebased after our own decreases so one backoff doesn't train-fire into the floor. This is the only signal that can push an already-too-high rate back under the encoder's compute knee — host climb refusal stops the climb, but nothing else descends on a clean LAN. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-25 01:44:54 +02:00
enricobuehlerandClaude Fable 5	c1d54b835b	fix(encode/nvenc): cache the level ceiling, expose the applied bitrate, force 2-way split at 4K120 ... Three encode-time fixes from the 4K120 field analysis (sessions pinned ~107 of 120 fps, 14-15 ms reported encode): - Ceiling truth: the codec-level bitrate clamp (binary search at session open) now records its result in a process-lifetime advisory cache keyed by GPU/config, so an ABR overshoot opens — or in-place reconfigures — straight AT the ceiling instead of re-running the ~6-open search (and a full rebuild + IDR) on every overshoot. New `Encoder::applied_bitrate_bps()` exposes the post-clamp rate so the session loop can stop pacing/acking a phantom requested rate (consumed host-side in a follow-up). - Clamp-search hygiene: only NVENC parameter/caps rejections steer the search now (`NvCallError` keeps the raw status downcastable); a transient failure (busy engine, session limit, OOM, driver skew) propagates instead of shrinking into — and now caching — a bogus ceiling. The floor fallback also records the split mode it actually opened with, so a later reconfigure re-presents the real session params. - Split-frame selection: one shared `resolve_split_mode` replaces the two byte-identical direct-SDK copies; the force-2-way threshold moves to `SPLIT_FORCE_PIXEL_RATE` (950 Mpix/s, shared with the libav path) because 4K120 = 995,328,000 px/s missed the old `> 1e9` gate by 0.47% and stayed on AUTO — which never engages at 2160 px height, leaving the second NVENC engine idle in exactly the mode the threshold existed for. The Linux session-ready info! line now carries the final split mode (journals are INFO+; this was undiagnosable from user logs). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-25 01:44:54 +02:00
enricobuehlerandClaude Opus 5	42e5f5ad1e	fix(encode/windows): two dead items the new lint leg exposed in the shipped combo ... 09aa2db3 turned on `-p pf-encode --all-targets -D warnings` for Windows and removed the crate-wide `allow(dead_code)`; together those surfaced two genuinely-dead items in `nvenc,amf-qsv,qsv` — the combination the installer ships — and CI went red on my own step. - `WinVendor::Amf`: native AMF replaced the libavcodec AMF path in production, so the only remaining CONSTRUCTOR is the `#[cfg(feature = "amf-qsv")]` latency A/B in amf.rs — test code, so the lib target constructs it nowhere. The module header already says this machinery is kept deliberately for that measurement, so it gets a targeted `#[allow(dead_code)]` naming the reason rather than deletion. - `probe_can_encode`: `lib.rs`'s only caller is under `cfg(all(not(feature = "qsv"), feature = "amf-qsv"))`, because with the native VPL backend compiled in `qsv::probe_can_encode` answers instead. Gated `#[cfg(not(feature = "qsv"))]` to match its call site. Both are real findings the blanket allow had been hiding; neither is a behaviour change. WHY THIS ESCAPED MY PRE-PUSH CHECKS, since that is the useful part: the Windows runner I verify on has no FFmpeg dev tree, so `amf-qsv` could not build there and `ffmpeg_win.rs` was compiled by NOTHING in my matrix — the same class of blind spot this whole audit is about, reproduced by me. CI's own FFmpeg turns out to be cached on that box at C:\Users\Public\ffmpeg, so the verification recipe now sets FFMPEG_DIR and covers `nvenc,amf-qsv,qsv` (the CI command and my new step) plus `amf-qsv` without `qsv` — the combo that still uses `probe_can_encode`. All three clean. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>	2026-07-25 01:04:04 +02:00
enricobuehlerandClaude Opus 5	d49f1bba49	fix(tray): count native sessions as streaming, and stop hiding "Open web console" ... The tray sat at "Idle" through an entire stream, and its Windows context menu could come up without its main action. Two separate causes. `GET /api/v1/local/summary` reported `video_streaming`/`audio_streaming` straight from `AppState.streaming` — flags only the GameStream media pipeline raises. The native punktfunk/1 plane is the DEFAULT (GameStream is opt-in) and never touches them, so every native session read as idle: idle icon, and a tooltip that printed that session's own resolution next to the word "idle" (the `session` field was already native-aware). This is the blind spot `/status` was fixed for — see the `session_status` module doc — which the summary kept. Both flags now OR in a live native session, and the tray additionally treats a reported session as streaming, so a new tray reads an older host correctly too. The menu built "Open web console" (and the pairing entry) only while a live loopback probe of the console had just succeeded. A console still starting, or an SSR render slower than the 2 s probe timeout, therefore deleted the tray's most-wanted action outright — indistinguishable from a tray that never had one, with left-clicking the icon as the only, undiscoverable, way in. The entry is now always present and the default item; a failed probe changes its label to "(not responding)" instead of hiding it, and takes two consecutive misses to say so, since one timeout is not "down". While here: a "Release kept display…" entry when displays are held (the summary field's own doc promised a one-click release that did not exist), and entries deep-link to /pairing and /displays instead of all landing on the dashboard. The Linux SNI menu mirrors all of it. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>	2026-07-25 00:46:30 +02:00
enricobuehlerandClaude Opus 5	09aa2db37c	fix(encode): probe Vulkan encode before committing capture to producer-native NV12 ... `linux_native_nv12_ok` is the verdict the host threads into capture negotiation (session_plan -> OutputFormat::nv12_native -> ZeroCopyPolicy::native_nv12_session -> pf-capture's prefer_native_nv12). Its doc claimed "the backend must be eligible to open", but it asked only three static questions — codec is H265/AV1, an env default, and a pref denylist — and never whether this GPU has an encode queue at all. It could not: vulkan_video.rs exposed no probe. That verdict is uniquely load-bearing. Once the producer has been asked for two-plane NV12 there is NO fallback: open_video deliberately makes a failed Vulkan open FATAL for an NV12 capture rather than degrading to libav VAAPI, because VAAPI would import that buffer as packed RGB and stream silent garbage. So on a gamescope host whose Mesa lacks Vulkan HEVC encode the session died at its first frame, while the same host with PUNKTFUNK_PIPEWIRE_NV12=0 streamed fine — and the comment promising such a device "degrades gracefully to the old backend rather than breaking the stream" was stale on every gamescope host. Two changes: 1. The gate. The third conjunct was a denylist of the EXPLICIT prefs that skip Vulkan Video ("nvenc"|"nvidia"|"cuda"|"pyrowave"), which silently missed the one that matters: the DEFAULT encoder_pref is "", and "" resolves to auto, which on an NVIDIA box opens NVENC. A stock NVIDIA host passed this gate. It now consults `linux_zero_copy_is_vaapi`, which layers the pref on top of the same auto decision open_video makes — what the note on `linux_auto_is_vaapi` says a capability probe must use, and what the downstream consumer of this very verdict already uses. This alone was worth fixing; a probe added behind the old gate would have opened a Vulkan instance on every NVIDIA handshake. 2. The probe. `vulkan_video::probe_encode_support` runs the FIRST check open_inner performs and hard-fails on — the physical-device + encode-queue-family scan for this codec's op — and nothing more, so it is provably no stricter than the open and can never talk a working host out of the fast path. The scan is now a shared `find_encode_device` used by BOTH, because a probe that mirrors a dispatch goes stale the first time the dispatch grows a case (the failure open_video's backend-label note already records). Cost: one instance plus physical-device queries — no logical device, no video session, no VRAM — cached per (selected GPU, codec) in the can_encode_10bit idiom, with the probe run outside the lock. Per codec, not once: codec_op_for selects a different queue-family bit for AV1, and HEVC-encode-without-AV1-encode is the common VCN/ANV configuration. Later stages (create_device, create_video_session, the capability query) can still fail for reasons the probe does not model. Those are harmless: the capture format is only committed once the probe says yes, and everything after keeps the ordinary packed-RGB negotiation. Verified `-D warnings --all-targets` + tests on Linux (default; shipped nvenc+vulkan-encode+pyrowave). The behaviour needs an on-glass check on the bazzite RADV box — including the negative case, which `RADV_DEBUG=novideo` reproduces. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>	2026-07-25 00:32:37 +02:00
enricobuehlerandClaude Opus 5	4063ddc93d	perf(encode/nvenc-linux): swscale the packed 3-bpp expand instead of a per-pixel loop ... `submit_cpu`'s RGB24/BGR24 → rgb0/bgr0 expand ran `w*h` iterations per frame, each building two bounds-checked sub-slices for a 3-byte copy plus a pad-byte store — a shape LLVM will not vectorise into the byte shuffle it actually is. At 3840x2160 that is 8.3M iterations on the encode thread, per frame. It is not an edge case. The module header says the portal commonly negotiates packed 24-bit RGB, and pf-capture offers `VideoFormat::RGB` first because wlroots commonly fixates it — so this was the mainstream CPU path, running roughly an order of magnitude slower than the 4-bpp sibling branch (a plain row memcpy) purely because of how it was written. swscale's packed-RGB expanders are SIMD, the sibling VAAPI backend already routes RGB24/BGR24 through them, and this file already owned the `sws_getContext` / `sws_freeContext` lifecycle — so this is net subtractive rather than new machinery: the existing CSC condition widens to include `expand`, and the hand-written loop goes away. No new field, no second context, nothing added to `Drop`: `expand` is false whenever `want_444` (see the `nvenc_pixel`/`expand` binding), so the three users are mutually exclusive and one context serves whichever applies. The `expand` field itself is gone with its only reader. `sws_setColorspaceDetails` is now applied ONLY for the 4:4:4/HDR users. The expand is a pure byte shuffle — NVENC does the RGB→YUV itself downstream — and handing it a matrix and range would have silently range-converted every packed-RGB session, which is exactly what the module header promises does not happen. Verified `-D warnings --all-targets` + tests on Linux (default; shipped nvenc+vulkan-encode+pyrowave). The pixel path itself is unverifiable without an NVIDIA box: `nvenc_hdr10_smoke` and friends are #[ignore]d, so the channel order and the pad byte want an on-glass check on the CachyOS 5070 Ti. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>	2026-07-25 00:32:37 +02:00
enricobuehlerandClaude Opus 5	c7081b2a82	fix(encode/nvenc-linux): stop leaking the SwsContext on open's early returns ... `sws_getContext` hands back a raw pointer whose only `sws_freeContext` lives in `Drop for NvencEncoder` — and `Drop` needs a CONSTRUCTED `Self`, which does not exist on either of `open`'s early returns: the intra-refresh-unsupported path (which recurses into `Self::open`) and the plain error return. Both sit between the context's creation and the `Ok(NvencEncoder { … })` that would give it an owner, so every failed open leaked one. That is not a once-per-process wart. `open_nvenc_probed` walks an EINVAL bitrate ladder — requested rate, then the codec-level cap, then ×3/4 down to 50 Mb/s — re-entering `open` at each step, so a GPU that refuses the requested bitrate leaks a context per step (up to ~10). The intra-refresh retry adds one more. Fixed structurally rather than with a guard: the block depends only on values known before the encoder open (`want_444`, `want_hdr10`, `cuda`, `format`, `nvenc_pixel`, the dimensions, `full_range_444`), so moving it BELOW `video.open_with(opts)` — to just above the struct construction, with nothing fallible in between — makes the leak unrepresentable instead of merely handled. No behaviour change: same context, same colourspace details, same field. Found while designing the WP1.4 swscale expand, which would have promoted this from a 4:4:4/HDR-only leak (the only sessions that build a context today) to one on every packed-RGB session. Fixing it first is the prerequisite for that change. Verified `-D warnings --all-targets` + tests on Linux (default; shipped nvenc+vulkan-encode+pyrowave). Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>	2026-07-25 00:32:37 +02:00
enricobuehlerandClaude Opus 5	6be174dc9c	fix(encode/windows): the encode bit depth must follow the pixels, not the negotiation ... All three Windows backends derived it the same wrong way — `bit_depth >= 10 || matches!(format, P010 | Rgb10a2)` at ffmpeg_win.rs:154, amf.rs:1275 and qsv.rs:777 — so the NEGOTIATED depth could force a 10-bit encoder over an 8-bit capture. That combination is not hypothetical. A client advertises 10-bit, the handshake negotiates bit_depth=10, and then enabling advanced colour on the IDD virtual display fails — at which point the capturer says exactly that and delivers 8-bit NV12 anyway ("10-bit HDR was negotiated but enabling advanced color on the virtual display FAILED — encoding 8-bit SDR"). Every vendor then lost the session, each in its own way: - native AMF and native QSV derived `expected = P010`, saw Nv12, and bail!'d at open; - the libavcodec path accepted the open, built a P010 encoder, and then failed EVERY submit forever, because its per-frame check recomputes the depth from the frame and never matches. reset() could not help: the rebuild re-derived the same wrong depth from the same stored bit_depth. The host burned MAX_ENCODER_RESETS and ended the session. The last one is the worst of the three because it IS the fallback: native QSV correctly refuses this input at open, and lib.rs then falls back to the ffmpeg path "for robustness" — which accepted it and died per frame instead. Since the duplication was the bug, the fix is one shared `ten_bit_input()` in codec.rs that all three call, and it follows the delivered pixels. That also keeps the stream HONEST rather than merely alive: the depth selects the colour signalling (BT.2020 PQ vs BT.709) and the staging surface format, so an 8-bit capture now produces an 8-bit stream that says it is SDR — which is what the capturer already reported it was sending. It warns when the negotiated depth is discarded. The negotiated depth stays an upper bound. The session LABEL may still claim HDR; that mismatch lives in the negotiation, not in the encoder, and is not addressed here. `is_10bit_format` keeps its (now format-only) definition and is used by submit_d3d11's per-frame check, so the predicate the encoder was built from and the one it re-checks per frame cannot drift. That check can now only fire on a genuine mid-stream depth change. Verified `--all-targets -D warnings` on Windows (no features / pyrowave / qsv / nvenc,qsv; 31 tests) and Linux (default; shipped nvenc+vulkan-encode+pyrowave). Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>	2026-07-25 00:32:37 +02:00
enricobuehlerandClaude Opus 5	6c97c00add	fix(encode/pyrowave): the RDO block-index cap must cover 4:2:0, not just 4:4:4 ... The vendored rate controller packs the 32x32 block index into the low 16 bits of `RDOperation::block_offset_saving` (pyrowave-sys patches/0002). Past u16::MAX the index collides with the `saving` field, the resolve over-credits, and the emitted payload can overshoot the buffer `pyrowave_encoder_packetize` writes into — whose only bounds check is an `assert` that the Release (NDEBUG) vendored build compiles out. There is no Rust-side guard behind it. All three callers of `pyrowave_mode_fits_rdo` hardcoded 4:4:4, leaving 4:2:0 unchecked — but 4:2:0 overflows too, just later: 8192x6144 is 73728 blocks and 8192x8192 is 98304, while `Codec::PyroWave.max_dimension()` permits 8192 per axis, so both are reachable from a client-requested `mode=WxHxFPS`. Worse, the host's only use of the helper (native/handshake.rs) is a 4:4:4 -> 4:2:0 downgrade, so an oversized mode was actively routed INTO the unguarded branch. The cap now lives in `validate_dimensions`, checked against 4:2:0 — the most permissive chroma, so a mode that cannot fit there fits no PyroWave session at any chroma. That is the single chokepoint both the negotiator (handshake.rs:180) and `open_video_backend` already run. Both encoder opens additionally check the chroma actually being opened: the 4:4:4 half, plus defence in depth for the `PUNKTFUNK_ENCODER=pyrowave` lab override. Not dormant: punktfunk-host has `default = ["pyrowave"]` and no build passes `--no-default-features`, so these backends ship in every host binary. Tests pin the arithmetic (8192x6144 = 73728, 8192x8192 = 98304, 7680x4320 still fits) and assert the cap does not leak to H.265/AV1, which have no such controller. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>	2026-07-25 00:32:37 +02:00
enricobuehlerandClaude Opus 5	16fa43da40	ci(encode): lint and test the feature-gated encode backends ... pf-encode's GPU backends are off by default, so almost none of them were under `-D warnings`: - ci.yml lints/tests with default features, which do cover VAAPI, libav-NVENC and — via punktfunk-host's `default = ["pyrowave"]` — the PyroWave backends, but not `nvenc` or `vulkan-encode`. - deb.yml builds those two, but with `cargo build`, where warnings are not errors. That left enc/linux/nvenc_cuda.rs, enc/linux/vulkan_video.rs and the vendored vk_av1_encode / vk_valve_rgb bindings — ~8,150 lines carrying ~70 `unsafe` blocks — never linted anywhere, so the crate's own `#![deny(clippy::undocumented_unsafe_blocks)]`, its stated unsafe-proof gate, was never actually enforced on them. Linux gains a clippy+test leg at the SHIPPED feature set: deb.yml builds `punktfunk-host/nvenc,punktfunk-host/vulkan-encode` WITHOUT `--no-default-features`, so the .deb carries pyrowave too and that combination is what deserves the lint. GPU-free — the hardware tests are `#[ignore]`d and NVENC/CUDA dlopen their entry points, so the test binary links with no driver. Windows gains a separate `-p pf-encode --all-targets` lint. The existing lint is `-p punktfunk-host`, which never builds pf-encode's test targets — the blind spot that let the Linux twin's tests rot. It must be clippy rather than `cargo test`: on MSVC nvidia-video-codec-sdk link-imports NvEncodeAPICreateInstance / NvEncodeAPIGetMaxSupportedVersion, so a test binary cannot link without the driver's import lib. clippy type-checks without linking; ci.yml runs the tests. `--all-targets` is load-bearing, not decoration: without it the feature-gated `#[cfg(test)]` modules are never compiled at all. Also widens windows-host.yml's paths filter, which listed `crates/pf-encode/**` but none of the crates it compiles against (pf-frame, pf-gpu, pf-zerocopy, pf-host-config, pf-capture, ...), so a change reaching the Windows host through one of those triggered no Windows build. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>	2026-07-25 00:32:37 +02:00
enricobuehlerandClaude Opus 5	07348c0175	refactor(encode): drop the crate-wide allow(dead_code) ... Inherited from the pre-extraction host crate root as scaffolding for backend paths defined ahead of the build that used them. A census across every feature combination on both platforms (flip it to `warn`, rebuild) found it was hiding exactly two items — so it bought nothing while blinding the crate to future rot: - `vaapi::fourcc` — superseded by `pf_frame::drm_fourcc`; no call sites left. - `vulkan_video::open_opts` — test-only (the smoke tests use it to pass the RGB-direct request explicitly rather than through the env), now `#[cfg(test)]`. Removing it surfaced a real latent defect the Linux census could not see: `amf.rs`'s `percentile` / `drive_and_measure` helpers are used only by the `#[cfg(feature = "amf-qsv")]` latency A/B benchmark, so a `--features nvenc,qsv` build compiled the helpers with their caller gated out. They now carry the same gate as their caller. Verified `--all-targets -D warnings` on Linux (no features; shipped nvenc+vulkan-encode+pyrowave) and Windows (no features; pyrowave; qsv; nvenc,qsv). Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>	2026-07-25 00:32:37 +02:00
enricobuehlerandClaude Opus 5	e30551b1e2	fix(encode/nvenc-linux): unrot the direct-NVENC test module ... All ten `NvencCudaEncoder::open` call sites in the `#[cfg(test)]` module passed 9 arguments to a 10-parameter function: `cursor_blend` was added to `open` and the tests were never updated. The module has been uncompilable ever since — `cargo clippy -p pf-encode --features nvenc --all-targets` fails with 10x E0061. Nothing in CI noticed because no job compiles this crate's feature-gated test targets: ci.yml lints/tests with default features (which do not include `nvenc`), and windows-host.yml lints `-p punktfunk-host`, which builds pf-encode as a dependency and so never builds its test targets. The CI commit below closes that gap; this has to land first or that leg starts red. `false` is what these tests exercised before `cursor_blend` existed: every frame they build sets `cursor: None`, and there is no cursor-blend test. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>	2026-07-25 00:32:37 +02:00
enricobuehlerandClaude Fable 5	8d5a9f66c9	fix(gamescope): ship a packaged privilege path for the DM-stop takeover ... Field report (Nobara, 0.19.2): entering Game Mode mid-stream left the monitor on and the stream mirroring at the desktop's resolution. Root cause: the DM-flavor takeover needs privilege to stop plasmalogin, the polkit rule is a docs-only manual step nobody installs, so every managed entry silently degraded to ATTACH — and with a physical display connected the attach path mirrors the box's own session at its own mode. Ship the privilege with the packages instead: a root helper (libexec/punktfunk/pf-dm-helper, verbs stop|restore) behind its own polkit action (io.unom.punktfunk.dm-helper, allow_any — the same mechanism Nobara's os-session-select uses, and the helper derives the DM unit from the display-manager.service symlink itself so callers never name a unit across the privilege boundary). The host tries the plain system-bus verbs first (root / operator rule still take precedence), then pkexec's the helper; the restore paths (idle restore + in-stream desktop-switch honor) use the same ladder so a takeover that needed the helper can always be undone by it. Packaged in rpm/deb/arch (Arch under /usr/lib/punktfunk with the policy's exec.path annotation rewritten; the host probes both layouts). Nix is left out deliberately: store paths can't match the probe, NixOS keeps the manual rule. Docs updated — the rule snippet stays as the scoped alternative. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-24 23:41:29 +02:00
enricobuehlerandClaude Opus 5	5c7a9407ff	fix(windows/web): start the console once its inputs exist, and verify it started ... A fresh install left PunktfunkWeb registered but not running: `web setup` waited only for the mgmt token before firing `schtasks /run`, while `web-run.cmd` also requires the host identity cert — and the host writes the token during argument parsing but `cert.pem` only after the pure-Rust RSA-2048 keygen inside `serve`. The launcher lost that race, exited 1, and since the task carried no trigger but boot (Task Scheduler does not reliably restart on a non-zero exit code) the console stayed down until the next reboot, with the installer still reporting "web console set up + started". - `web setup` gates on cert.pem (written last) as well as the token, 90 s budget. - After `schtasks /run`, poll for the :47992 listener and retry before giving up; warn honestly instead of claiming a start that did not happen. - `web-run.cmd` (installed + dev) waits in-process for the token + cert (~5 min) rather than exiting 1 and hoping restart-on-failure retries. - Register the task with a logon trigger alongside boot, falling back to the boot-only XML if a Task Scheduler build rejects it. - Linux had the same defect: punktfunk-web.service's Restart=on-failure gave up permanently after systemd's default 5-starts-in-10 s limit. StartLimitIntervalSec=0. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>	2026-07-24 23:22:09 +02:00
enricobuehler	7781d09e26	feat(linux): log if unsupported / too low gamescope version discovered	2026-07-24 20:57:44 +02:00
enricobuehlerandClaude Opus 4.8	f4fe4d0792	chore(release): bump workspace version to 0.19.2 ... An all-fixes patch on top of 0.19.1, all host-side: - KDE Plasma display takeover moved off kscreen-doctor to in-process kde_output_management_v2 (86d5d666), with the >60 Hz custom-mode install ported too (64511af4) — a KWin host whose kscreen-doctor wedges now disables its physicals and hands over the streamed output in ~2.4 ms instead of hanging ~26 s and never taking over. - The gamescope managed takeover is display-manager-flavor-aware (e35dad52) so switching a non-SDDM Linux desktop (Nobara / plasmalogin) into Game Mode no longer start-limits the display manager into a permanent black screen, and in-stream 'Switch to Desktop' is honored under it (a3e21d92). - Windows display isolation anchors the kept sources at the desktop origin (9b241d9d) so an origin-less desktop no longer fails 0x57, with restore guaranteed never to leave the desktop all-dark. - Windows pen/touch/absolute-mouse map over the streamed output's rect rather than the whole virtual desktop (087e7d04), so absolute input lands correctly when a physical monitor is kept on beside the streamed display. Nothing moved on the wire (protocol 2) or at the C ABI (13), so no embedder rebuild and 0.18/0.19 peers keep mixing freely. The Windows virtual-display driver protocol is unchanged. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> v0.19.2	2026-07-24 17:56:08 +02:00
enricobuehlerandClaude Fable 5	087e7d0405	fix(inject/windows): map absolute input over the streamed output's rect, not the whole desktop ... Pen, touch, and absolute mouse arrive normalized to the STREAMED display's frame, but pointer_windows::to_screen and sendinput's MouseMoveAbs mapped them over the whole virtual desktop — correct only when the virtual display is the sole active display (Exclusive topology). In Extend — a physical monitor kept on beside the virtual output, or an Exclusive isolate degraded to the 0x57 keep-physicals fallback — the streamed output sits at a non-zero origin, so every sample landed shifted and mis-scaled. The pen exposed it first (field report 2026-07-24): a stylus is strictly absolute, with no closed-loop correction onto the target like a cursor. New pf-inject::stream_target (Windows): the host publishes the streamed output's CCD target id at capture bring-up (one central site — capture_virtual_output covers the native and GameStream planes); mapping sites resolve its current desktop rect through pf-win-display's source_desktop_rect — the same resolver the cursor-readback poller uses, so inject and readback always agree — TTL-cached (250 ms) because a group-layout re-arrange moves a live output's origin mid-session. No target set / never resolved falls back to the whole virtual desktop (the historical mapping, still right for Exclusive topology and devtest). One change in to_screen covers pen + touch; MouseMoveAbs converts the same desktop pixel into the 0..65535 MOUSEEVENTF_VIRTUALDESK coordinate, closing the identical latent absolute-mouse bug (apollo-comparison open item #14/#30). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-24 17:38:36 +02:00
enricobuehlerandClaude Opus 4.8	64511af4d3	fix(kwin): install >60Hz custom modes in-process too — KWin path is now kscreen-free ... Follow-up to the previous commit: the only KWin topology op still shelling out to kscreen-doctor was the >60 Hz custom-mode INSTALL (`set_custom_refresh`). Port it to `kde_output_management_v2` so the whole KWin path is kscreen-free on modern KWin. `kwin_output_mgmt::set_custom_mode` builds a one-entry `kde_mode_list_v2` (set_resolution / set_refresh_rate / set_reduced_blanking=full / add_mode), applies it via `kde_output_configuration_v2.set_custom_modes` (since 18), waits for KWin to generate the mode (its CVT generator may align the width down — matched with the same height-exact / width-within-8 / refresh-within-1Hz gate as before), then selects it — which changes the output size and drives the sacrificial-birth stream renegotiation. `kwin::create`'s want_high branch tries this first and only resolves a kscreen id + calls `set_custom_refresh` if it returns None (pre-6.6 KWin without set_custom_modes, or the compositor not answering) — so a >60 Hz session on a box where kscreen-doctor wedges no longer eats a 5 s resolve timeout either. Bonus: `set_custom_modes` REPLACES the custom list, so reconnects are idempotent — no more one-custom-mode-per-connect growth of the user's display list. Verified: cargo test -p pf-vdisplay (73 pass), clippy -D warnings clean, fmt clean. The set_custom_modes round-trip is proven live on KWin 6.6.4: apply=applied, and a 1648x928@75 request generates 1648x928@74.901 (CVT fractional refresh, caught by the 1 Hz tolerance). The mode SELECT + full >60 Hz stream is still owed on-glass. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-07-24 12:47:34 +02:00
enricobuehlerandClaude Opus 4.8	86d5d66660	fix(kwin): drive display topology over kde_output_management_v2, not kscreen-doctor ... A KDE host on Nobara stopped disabling its physical screens and creating the virtual output the moment it updated: streaming still came up, but bring-up took ~26 s and the streamed output never became the desktop (`also_disabled=[]`). Root cause is not our topology logic — it's that every `kscreen-doctor` call on the reporter's session wedges. kscreen-doctor drives libkscreen, which (per setup) waits on the kscreen KDED module over D-Bus; when that layer is stuck it blocks in its own connect and never returns, so all five topology queries hit their 5 s budget and got killed (host log). Reproduced live on a Nobara / KWin 6.6.4 box: `kscreen-doctor -j` there times out at 8 s, every time. But the compositor's OWN Wayland is fully responsive on that same session — the host just created a virtual output over it via zkde_screencast. So drive the topology (resolve our output, take primary, disable the physical/bootstrap outputs, capture their modes, re-enable on teardown, position) directly over `kde_output_management_v2` + `kde_output_device_v2` instead of shelling out. On that same Nobara box the in-process path binds management (v19) and enumerates the outputs in 2.4 ms — ~3400x faster than the 8 s hang, and immune to whatever wedges the standalone tool. - vendor kde-output-management-v2 / kde-output-device-v2 (KWin advertises mgmt v19, device v20); generate client bindings inline (the interdependent-protocol module split from the wayland-protocols crate; needs the `bitflags` dep for the device protocol's bitfield enums). - new `kwin_output_mgmt`: bounded enumerate-then-apply over one Wayland connection; every wait is time-bounded so a genuinely wedged compositor degrades to `handled = false` and the old kscreen-doctor path still runs. - `kwin::create` topology + `apply_position` prefer the in-process path (address our output by its stable device UUID, supersede-robust) with kscreen-doctor as the fallback. The 60 Hz path now makes ZERO kscreen-doctor calls; only the >60 Hz custom-mode install still shells out (its in-process port is a follow-up). Verified on Linux: cargo test -p pf-vdisplay (73 pass), clippy --all-targets -D warnings clean, fmt clean, punktfunk-host checks clean. In-process enumeration proven live against KWin 6.6.4 (the reporter's env); the disable/apply path is not yet on-glass. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-07-24 12:47:33 +02:00
enricobuehlerandClaude Fable 5	a3e21d9227	feat(vdisplay/gamescope): honor in-stream 'Switch to Desktop' under the managed DM takeover ... First on-glass test of the DM-flavor takeover confirmed the black-screen fix, but exposed that the managed model could not switch back: Steam's in-stream session-select is a silent no-op while the display manager is stopped (every config-write branch in os-session-select requires the DM to be running), so the capture loss it causes just relaunched game mode. The user pass of the switch script does leave one durable trace — the ~/.config/steamos-session-select sentinel, written before any DM check. The managed launch now baselines its mtime; a capture loss with the sentinel advanced reads as the switch request and is honored by replaying the switch with the DM up: restore the display manager, run the distro's own os-session-select (its internal pkexec is authorized allow_any by the distro policy, so it works from the host's sessionless context), then stop the autologin game-mode unit so Relogin lands in the newly selected desktop. The capture-loss re-detection then follows KWin as it comes up; a 120 s post-honor grace stops the rebuild loop from racing the booting desktop back into game mode (superseded early if the box's own game-mode unit reappears — the desktop→game leg stays fast). The baseline is re-recorded on crash-restore so a pre-existing sentinel never reads as a fresh request. Every verb in the sequence was live-validated on the Nobara repro VM. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-24 11:49:24 +02:00
enricobuehlerandClaude Fable 5	e35dad529b	fix(vdisplay/gamescope): DM-flavor-aware session takeover — stop masking Nobara's plasmalogin to death ... Field report (Nobara 43 HTPC): switching the host to Steam Game Mode mid-stream permanently black-screened the box. Live-proven root cause on a Nobara repro VM: our takeover masks the box's gamescope-session-plus unit, plasmalogin's Relogin=true then fails its session Exec repeatedly and trips systemd's start limit within ~1 s — the display manager dies, and our restore verb (unmask + user start) cannot bring a seatless gamescope back. Only 'reset-failed + restart' of the DM recovers. The takeover is now display-manager-flavor-aware: - SDDM (Bazzite/SteamOS) keeps the proven mask+SIGKILL path unchanged. - plasmalogin/unknown DMs never mask: with privilege (root or an operator polkit rule scoped to the DM unit — documented) the host stops the DM for the stream and restores it with reset-failed + restart (PUNKTFUNK_RECOVER_SESSION_CMD as fallback), recorded in the persisted takeover state so a host crash still restores; without privilege the managed takeover degrades to ATTACH and mirrors the box's live Game Mode instead of destabilizing the seat. Both legs of the privileged cycle live-verified on the repro VM (headless managed session works with zero login sessions; render nodes are 0666). A loaded-but-inactive leftover instance never triggers the DM stop. Companion fixes from the same triage: - ensure_box_gamescope_mode gains the attach-only rebuild-probe guard both managed paths already had (stale post-capture-loss detection restarted the box's unit), and no longer re-modes a box that drives a physical display — attach mirrors on-glass; re-mode is the headless-box model. - Capture-loss rebuilds targeting gamescope get a 100 s budget: the 40 s budget expired inside the first 45 s Steam-cold-start launch attempt, a guaranteed single-shot failure. - A PUNKTFUNK_COMPOSITOR pin now WARNs once per capture loss when the live session no longer matches it (the pin disables session-following — the reporter's original stream-death trigger). - A managed session that took nothing over (client gamescope pin beside a live desktop) is stopped on disconnect instead of being orphaned forever. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-24 11:49:24 +02:00
enricobuehlerandClaude Fable 5	9b241d9d7b	fix(pf-win-display): anchor the kept sources at the desktop origin when isolating ... Round 3 of the field-reported exclusive-topology 0x57, with the reporter's retest logs finally separating the variable: the SAME isolate call converged rc=0 whenever a kept member already sat at (0,0), and failed 0x57 on every shape — doomed-path-carried AND keep-only escalation — whenever the doomed physical held the origin. A committable config must still contain a primary (a source pinned exactly at (0,0)); deactivating the display that held it while the kept virtual stays at its EXTEND offset supplies an origin-less desktop, which Windows rejects wholesale. Translate the kept sources rigidly so the top-left-most lands on the origin; sets already covering (0,0) are untouched so plain re-commits stay byte-identical. Also from the same logs: - restore_displays_ccd now guarantees the desk is never left all-dark: the saved snapshot can be unappliable (0x64a — it pinned a virtual target incarnation removed before teardown) or apply cleanly yet re-light nothing (snapshotted while an earlier failed teardown had the physicals off). If no external physical is active after the apply while one is connected, fall back to the database EXTEND preset. Internal panels don't count — a closed lid must not be forced back on. - the final isolate failure now names the surviving targets instead of asserting 'a non-virtual display stayed active' — the logs showed a sibling VIRTUAL display as the survivor (linger-expiry shrink), and the wording sent triage the wrong way. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-24 10:21:47 +02:00
enricobuehlerandClaude Opus 4.8	ebddffa4c8	chore(release): bump workspace version to 0.19.1 ... An all-fixes patch on top of 0.19.0. The headline is session teardown — the native stop flag made enforceable and bounded (ac3dc432) and GameStream ending on the control peer's ENet disconnect (41fa25c4), so a session can no longer outlive the client that started it on either plane. Also: the Windows input-desktop pair (display writes b5fa878b + pen/touch injection 24a24734 both surviving a UAC prompt), the Apple display-sleep guard (bc5f6a38), the gamescope corner-parked cursor (4b2d2d1e), the KWin custom-mode selection (3a33a694), the tvOS glob warnings (cc8cccbe), and the Linux starter/env docs revamp (66172753). Nothing moved on the wire (protocol 2) or at the C ABI (13), so no embedder rebuild and 0.18/0.19 peers keep mixing freely. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> v0.19.1	2026-07-24 02:15:40 +02:00
enricobuehlerandClaude Fable 5	cc8cccbee6	fix(core/client): drop two redundant glob imports that warned on tvOS ... `punktfunk-core` emitted `unused import: super::super::*` for client/pump/handshake.rs and client/pump/input_task.rs — but only when built for a tvOS target, where the cfg set leaves the glob contributing nothing. Nobody saw them because CI never builds tvOS: that needs BUILD_TVOS=1 and the Tier-3 build-std nightly path, and the Apple workflow only runs swift build/test (macOS). Both files also `use super::*`, i.e. the parent `pump` module, which itself globs `super::*` (`client`) unconditionally — so every name stays reachable by that path and the inner glob was pure duplication. Their sibling datagram_task.rs already imports only `use super::*`, so this also makes the module consistent. control_task.rs and data.rs keep theirs: those genuinely resolve names through it and never warned. Verified warning-free AND compiling on every slice the xcframework ships — aarch64/x86_64-apple-darwin, aarch64-apple-ios, aarch64-apple-ios-sim, aarch64-apple-tvos, aarch64-apple-tvos-sim, x86_64-apple-tvos — plus Linux with and without the `quic` feature. A full xcframework rebuild now reports 0 warnings (was 6: two per tvOS slice), and swift build, swift test (170 tests), and xcodebuild for the macOS, iOS and tvOS schemes all pass. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-24 02:11:49 +02:00
enricobuehlerandClaude Fable 5	ac3dc4323f	fix(native/session): make the stop flag enforceable so a session can't outlive its client ... Native sessions could survive long after the client was gone, in two independent ways. HOST: `stop` was only advisory. The one thing that ends a session is the stream thread returning — every teardown (conn.close, the joins, and the RAII drops of the session permit, admission entry and stream marker) sits after that await, and nothing forced the issue. The encode loop checks `stop` between iterations, so any unbounded call INSIDE one never reaches the check, and one stuck syscall became a permanent zombie: it held its semaphore slot (four of those and the host stops accepting QUIC entirely), its admission entry (a later client gets "host busy" forever), and not even the console's Stop button could clear it — that button sets this same flag. * Bound the wait: once the session has been told to stop, the thread gets STREAM_STOP_GRACE (90 s, well past the 40 s capture-rebuild budget) to return, then teardown runs anyway. The thread is detached, not killed — Rust can't cancel a blocking thread — so it keeps its capturer/encoder until the stuck call returns, but the session's slot and admission entry come back and the host keeps serving. It logs at ERROR as the host wedge it is. * Bound the audio/input joins too — the last unbounded await in teardown. * Take the session permit AFTER the QUIC handshake instead of before `accept()`, so a host at its concurrency cap still accepts and the waiting client sees a live path instead of a silent dial timeout. * Bound the compositor helpers that caused the wedge in the first place: new pf-vdisplay `proc::{status_within, output_within}` kill a child that outlives its budget. `kscreen-doctor` is a Wayland client of the very compositor it configures, so against a wedged KWin it never returned; same for systemctl/dbus against a stuck session bus. CLIENTS: the connection was never closed, so the host was right to keep the session — it still had a live, keep-alive-answering peer. * Android: backgrounding did no teardown at all, and Android doesn't suspend the process, so the worker kept answering keep-alives until the OS reclaimed it (on a TV box, never). End the session on ON_STOP, via the existing onDispose path; a plain close, not a quit, so the host lingers the display for a fast return. * Apple: the .background arm was iOS-only AND gated on an opt-in that defaults off, so backgrounding did nothing — while the `audio` background mode kept the app (and its connection) alive indefinitely. Act unconditionally, and cover tvOS. * Core: `conn.close()` only queues the frame, and run_pump is the body of a block_on whose runtime is dropped the instant it returns, so the driver could never put it on the wire — a deliberate quit reached the host as silence (8 s idle timeout, no quit code, and the linger meant for an unwanted disconnect). Carry the endpoint out of the handshake and flush with wait_idle(), the same discipline the pairing and probe paths already use. Linux check/clippy/tests green: 262 host, 71 pf-vdisplay (incl. new bounded-process tests), 231 core. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-24 02:11:49 +02:00
enricobuehlerandClaude Fable 5	41fa25c440	fix(gamestream/session): end the session when the client disconnects or vanishes ... GameStream sessions outlived their client: the only complete teardowns were the explicit ones (RTSP TEARDOWN, nvhttp /cancel, mgmt DELETE /session), and the only automatic detector was a media-UDP send error — which needs an ICMP port-unreachable, so a true vanish (Wi-Fi drop, sleep, power off, crash) left video+audio encoding into the void forever, and even a plain Moonlight quit (which sends neither TEARDOWN nor /cancel) leaked the session. The stale state then cascaded: a lingering launch 503-blocked a different client under mode_conflict=reject, and streaming=true made a reconnect's PLAY take its "stream already running" branch — no new threads, old threads still aimed at the dead endpoint, the reconnect got no media. ENet already detects all of this — the control peer's reliable-ping timeout (or clean disconnect) fires Event::Disconnect within ~5-30 s — but the handler only reset input state. Wire the real teardown into it: * AppState::end_session — THE compat-plane session teardown: stops both media threads (their flags), clears launch + negotiated stream config; idempotent. /cancel and mgmt stop_session now share it. * control.rs Disconnect → end_session. Gated on the TRACKED session peer, and Connect only tracks a peer from the /launch owner's IP (the same source-IP bind the RTSP/media plane uses), so an unauthenticated LAN peer connect+disconnect can't end a live session, and a fast reconnect's stale-peer timeout can't kill its successor. * Client-unreachable UDP send errors now end the whole session via an OnSessionLost callback (built at PLAY) instead of stopping only the plane that noticed — audio no longer keeps streaming after video detects the dead client, and vice versa. Linux check/clippy/tests green (53 gamestream tests incl. the new end_session regression test). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-24 02:10:23 +02:00
enricobuehlerandClaude Opus 4.8	3a33a69401	fix(kwin): select the custom mode KWin actually built, not the one we asked for ... A KDE host streaming to a phone-shaped client fell back to 60 Hz even though the 120 Hz mode was sitting right there in KDE's display list, one manual click away. KWin generates every custom mode's timing with libxcvt, whose first step is `hdisplay_rnd = hdisplay - (hdisplay % 8)`. A 2868x1320@120 request (iPhone 16 Pro Max) therefore becomes 2864x1320@119.92 — 4 px narrower, fractional refresh. We then asked kscreen-doctor for `mode.2868x1320@120`; its `findMode` matches a mode's id or its own `WxH@qRound(Hz)` name, so that string matched nothing, the select silently no-op'd, the output stayed on its sacrificial birth mode, and `size_applied` came back false → "KWin rejected the custom mode" → 60 Hz. Widths like 1920/2560/3840 are all multiples of 8, which is why only clients with phone-shaped panels ever hit this. Resolve the mode out of the output's OWN list instead and address it by kscreen mode id: exact height, width at most one cell narrower than asked, refresh within 1 Hz (which excludes the native 60 Hz entry). `set_custom_refresh` now returns the whole achieved mode, and `create` reports that as the output's `preferred_mode` — so the capturer's renegotiation gate waits for the size KWin will actually deliver and the encoder opens against it, rather than starving on the requested one. Also skip `addCustomMode` when a usable mode is already installed: kscreen-doctor APPENDS to the list and KWin persists it per output name, so the old code grew the user's display list by one entry per connect. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-07-24 00:55:36 +02:00
enricobuehlerandClaude Opus 4.8	24a24734eb	fix(inject/windows): follow the input desktop for pen + touch injection ... Same field report as the display-write fix, other half of the symptom: with a UAC consent prompt up — one the user could SEE in the stream, because capture already renders the secure desktop (326d6e17) — pen and touch did nothing, while mouse and keyboard kept working. The split was exactly which paths knew the input desktop can move. sendinput.rs reattaches, so mouse/keyboard reached the prompt. pointer_windows.rs had no desktop handling at all, so every InjectSyntheticPointerInput came back ERROR_ACCESS_DENIED: 22:20:31 virtual pen created (PT_PEN) 22:20:31 pen inject failed error=Zugriff verweigert (0x80070005) 22:20:42 touch inject failed error=Zugriff verweigert (0x80070005) contacts=1 Measured on glass before fixing, to find out what it actually takes: device on Default, thread on Default -> 0x80070005 (the field failure) device on Default, thread on INPUT -> OK device on INPUT, thread on INPUT -> OK The middle row is load-bearing: the synthetic pointer device is NOT desktop-affine, so rebinding the thread suffices and the device is never destroyed and recreated across a desktop switch — which would have dropped in-flight contacts and the pen's in-range state mid-stroke. Injection now retries once bound to the input desktop. The binding is scoped, not persistent like sendinput's: inject_pen/inject_touch_frame run on TWO threads (the caller's apply_batch and the refresh threads), and the batch caller is a shared task thread that must not be left parked on a Winlogon desktop that disappears when the prompt is dismissed. The first-failure WARN now carries the rejected sample (flags, pen flags/mask, pressure, rotation, tilt, position). A 0x80070057 INVALID_PARAMETER was seen once BEFORE any prompt existed and is still unexplained; the ranges all look sound on inspection (coordinates clamped to the virtual screen, roll/azimuth u16 so the modulo cannot go negative, tilt bounded 0..=90), so catching the actual offending sample is the way to find it. Verified on glass: with a consent prompt up, pen and touch now reach it — zero inject failures where every prior session failed immediately. A UAC prompt can now be dismissed from an iPad with the Pencil. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-07-24 00:36:51 +02:00
enricobuehlerandClaude Opus 4.8	b5fa878bc6	fix(pf-win-display): follow the input desktop so a UAC prompt can't refuse display writes ... Field-reported 2026-07-23: a consent prompt left up on an unattended host made the box unreachable. Every connect black-screened and failed after ~60 s, and the host had to be reached over SSH to clear the prompt. Windows refuses ChangeDisplaySettingsEx/SetDisplayConfig issued from a thread that is not on the desktop currently receiving input. While UAC (or the lock / logon screen) is up that desktop is Winlogon, and the host — which the service launches explicitly onto WinSta0\Default — got DISP_CHANGE_FAILED / ERROR_ACCESS_DENIED for every write. A session starting in that window could never set its virtual display's mode, so the capturer sized its ring to a stale mode, every composed frame was dropped for a size mismatch, and bring-up burned 8 retries before giving up. Measured on glass (RTX box, SYSTEM host in console session 2, real consent prompt up, virtual display active): INPUT desktop = Winlogon UNBOUND CDS_TEST -> -1 (DISP_CHANGE_FAILED) UNBOUND SDC_VALIDATE -> 0x5 (ERROR_ACCESS_DENIED) BOUND CDS_TEST -> 0 (DISP_CHANGE_SUCCESSFUL) BOUND SDC_VALIDATE -> 0x0 (ERROR_SUCCESS) New input_desktop.rs mirrors pf-inject's sendinput.rs retry model: issue the write, and only when it fails the way a wrong-desktop write fails, rebind this thread to the current input desktop and retry once. A working write is never touched, so the normal path is unchanged. The retry predicate stays narrow (ERROR_ACCESS_DENIED only) so the unrelated 0x57 exclusive-mode topology bug is not re-issued and mis-attributed. Unlike sendinput's dedicated injector thread, the binding here is SCOPED — a shared display-write thread left on a Winlogon desktop that is later destroyed would fail every subsequent write, which is the wedge this removes. Applied to all eight SetDisplayConfig sites and both ChangeDisplaySettingsExW calls in set_active_mode. The isolate site now decides its supplied config once, outside the write, so a retry re-issues the identical config rather than logging its escalation twice. A save is logged, because a silent one is indistinguishable in a field log from a write that never needed saving — which made the first on-glass verification of this change inconclusive. Both ACCESS_DENIED diagnostics now ask which cause applies instead of naming only the disconnected-RDP one: that phrasing sent this investigation chasing a phantom RDP session on a host that was already service-launched in the console session, while a consent prompt was the actual cause. Verified on glass: connect with a consent prompt up now reaches first frame in 3.0 s (was a black screen then "Connection failed" after ~60 s), with six "retried bound to it and it applied desktop=Winlogon" lines and rc=0x0 throughout. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-07-24 00:36:51 +02:00
enricobuehler	4b2d2d1e14	fix(gamescope/cursor): follow gamescope's own cursor verdict — the corner-parked pointer ... gamescope hides its pointer by WARPING the X pointer to the root's bottom-right corner pixel; it does not swap in a transparent X cursor, so XFixesGetCursorImage keeps handing back the last opaque arrow. The XFixes source picked its display by "whichever pointer moved", and a parked pointer never moves again — so it froze on the parked Xwayland and composited that arrow at (w-1, h-1): a sliver of cursor welded to the corner of the stream for the rest of the session while the real pointer went undrawn. Reported on-glass in every game (a game grabs the pointer, so the hide is permanent): "part of cursor shows up on bottom right ... isn't where it really is". Follow GAMESCOPE_CURSOR_VISIBLE_FEEDBACK instead — gamescope publishes it on every nested Xwayland root: 1 on the server whose pointer it is drawing, 0 on the others and 0 on all of them once the pointer is hidden. It answers both questions correctly for a STATIC pointer, which motion cannot: which Xwayland owns it, and whether to draw it at all. Read at connect, re-read on its root PropertyNotify (event drain now discriminates CursorNotify vs PropertyNotify) with a 250 ms resync as the self-heal. A pointer gamescope draws nowhere is published visible:false, not dropped — the encode loop overwrites the frame's overlay from this slot and strips invisible ones, so a None would leave the last visible overlay standing on repeat frames. Honouring the atom also gives the stream gamescope's own idle auto-hide, which this source never had. The pointer-motion heuristic stays as the fallback for a gamescope that publishes no verdict (logged at session start via cursor_feedback=false), so nothing regresses to a cursorless stream. Measured on a live 1920x1080 Steam Gaming Mode session (RTX 5070 Ti, gamescope c31743d+, --xwayland-count 2 --hide-cursor-delay 3000): idle 3 s => pointer (1919,1079) + feedback 0; real evdev motion => pointer live + feedback 1. End-to-end against that session the source now publishes visible=false while parked and tracks the live pointer within one 250 ms sample of motion. cargo clippy -p pf-capture --lib -D warnings and the 5 new pick_active tests are green at cargo 1.96.1 (CI parity); cargo fmt --all --check clean.	2026-07-24 00:31:55 +02:00
enricobuehlerandClaude Opus 4.8	bc5f6a3881	fix(apple/session): keep the display awake for the length of a session ... A stream is not user activity to the OS, and controller input does not feed the HID idle timer on any Apple platform — so a gamepad-only session reliably idles the panel out from under the user mid-play. A keyboard/mouse capture session masks the bug because those events are real local HID. The Android client has held FLAG_KEEP_SCREEN_ON while streaming all along; the Apple clients held nothing. DisplaySleepGuard is acquired in beginStreaming and released at the top of disconnect, so it is scoped to the session — every teardown path (user quit, sessionEnded, the backgrounded keep-alive timeout) funnels through disconnect. iOS/iPadOS/tvOS: UIApplication.isIdleTimerDisabled. App-wide and ignored while backgrounded, which is what the audio-only keep-alive wants. macOS: ProcessInfo.beginActivity(.userInitiated, .idleDisplaySleepDisabled), the Foundation wrapper over IOKit power assertions. That defers display sleep but NOT the screen saver, which runs off the HID idle timer independently — so a 30 s IOPMAssertionDeclareUserActivity heartbeat runs alongside it. Intended side effect: an idle-lock that follows the screen saver is deferred for the session too. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-07-24 00:00:55 +02:00
enricobuehlerandClaude Fable 5	6617275387	docs(env): stop teaching the compositor pin + uid-1000 anchors in starters ... Field triage (Nobara, Discord): the kde.md starter host.env told desktop users to set PUNKTFUNK_COMPOSITOR=kwin, which PINS the backend — detect() short-circuits and the capture-loss rebuild never re-detects — so a mid-stream switch to Game Mode killed the stream instead of following it. A follow-up hardcoded XDG_RUNTIME_DIR=/run/user/1000 anchor broke PipeWire for any non-1000 uid (pw audio connect: Creation failed). Revamp across every starter/example/reference: - Desktop starters (kde/gnome/hyprland/sway) shrink to PUNKTFUNK_VIDEO_SOURCE=virtual + an explicit warning that pinning disables session-following; forcing a backend is CI/appliance-only. - host.env.example: rewritten around auto-detection; anchors demoted to a commented ssh/cron-only block with the uid trap spelled out; the gamescope ATTACH/MANAGED knobs documented (previously missing); case-sensitivity called out. - packaging/bazzite/host.env + README: drop the uid-1000 anchors (a systemctl --user service inherits/derives them); README's stale PUNKTFUNK_COMPOSITOR=gamescope-era template synced to the real one. - packaging/kde/host.env: loud APPLIANCE-ONLY header (it pins on purpose). - configuration.md: session-anchors section inverted to "leave unset", compositor row states the pin consequence, case-sensitivity note. - troubleshooting.md: new "session fails right after editing host.env" section (case, wrong-uid anchors, stale pin, restart-to-apply). - gamescope.md/bazzite.md: attach/managed descriptions match current behavior (managed is the infra-detected default; attach re-modes a box-owned session to the client's resolution). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-23 22:42:59 +02:00
enricobuehlerandClaude Opus 4.8	bda015b101	docs(release): rewrite v0.19.0 notes for end users + set end-user notes voice ... Release notes were written for the people who build Punktfunk, not the people who use it — dense with protocol/ABI/type names that confused even technical readers. Rewrite v0.19.0 in a benefit-first, plain-language voice (New/Improved/Fixed) with all internal terms removed from the body and every protocol/ABI/embedder detail moved to a single bottom "Under the hood" section. docs/releases/README.md now codifies this voice as the format spec for all future notes. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-07-23 20:15:08 +02:00
enricobuehlerandClaude Opus 4.8	ec219763a6	fix(ci/release): make _release_notes_path POSIX-sh safe (deb/decky attach runs under dash) ... The v0.19.0 deb + decky release-attach steps source gitea-release.sh under `sh` (dash) and died with "Bad substitution" at _release_notes_path's `${BASH_SOURCE[0]:-$0}` — a bash array subscript dash rejects. So those legs never attached their assets to the release (the bash legs — apple, android, rpm — were fine, which is why the body still seeded and the DMG/.ipa attached). CI always sources this from the repo root, so resolve the notes as docs/releases/<tag>.md relative to CWD and drop $BASH_SOURCE entirely. Verified under dash. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> v0.19.0	2026-07-23 19:03:01 +02:00
enricobuehlerandClaude Opus 4.8	0dce1cd116	chore(release): bump workspace version to 0.19.0 ... Headline: the whole pen/tablet input stack (P0–P5) — a pressure-sensitive stylus plane across core wire, Linux, GameStream/Moonlight, Windows, iPad Pencil and Android. Plus touch-injection fixes, cursor-DPI scaling, three Windows-host display/cursor fixes, a gamepad same-PID conflict fix, and the Android mouse/keyboard (TV) regressions. Release notes authored in-repo at docs/releases/v0.19.0.md (first release on the new flow; CI seeds the release body from it). cargo update --workspace syncs the lock (versions only). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-07-23 18:26:49 +02:00
enricobuehlerandClaude Opus 4.8	c3c0115a82	fix(core/abi): bump ABI_VERSION to 13 for punktfunk_connection_send_pen ... The pen P0 work added a new embeddable C entry point (punktfunk_connection_send_pen) but left ABI_VERSION at 12 — the value 0.18.0 shipped. Per the project's convention (0.18.0 bumped to 12 for the additive cursor channel), additive C-surface growth bumps the ABI so embedders can gate on the new symbol. Regenerated include/punktfunk_core.h via cbindgen (cargo build -p punktfunk-core); WIRE_VERSION is unchanged (pen is capability-gated on HOST_CAP_PEN). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-07-23 18:23:38 +02:00
enricobuehlerandClaude Opus 4.8	00c8c12a0f	feat(ci/apple): export the iOS .ipa to the release + run artifacts ... The iOS leg archives with development signing and re-signs for App Store distribution at export time, but the existing export uses destination=upload (straight to TestFlight) and leaves no .ipa on disk. Add an export step that re-exports the SAME archive with destination=export to produce an App Store distribution-signed .ipa, then: * attach it as the `punktfunk-ios-ipa` run artifact on every build (upload-artifact@v3, since Gitea's backend rejects @v4), and * attach it to the unified Gitea release on vX.Y.Z tags (alongside the DMG), via the shared ensure_release/upsert_asset helpers. Same gate as the archive; warn+skip (never fails the best-effort iOS leg) if the archive is absent. Note: an App Store-signed .ipa installs only via TestFlight/App Store, not by direct sideload — it is a release/archival artifact. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-07-23 18:18:45 +02:00
enricobuehlerandClaude Fable 5	988b5742ec	fix(gamestream): tolerate NaN pressureOrDistance — VoidLink's finger touches were dropped whole ... The hex dumps from the on-glass session show textbook SS_TOUCH packets with pressureOrDistance = 0x7fc00000 (NaN): VoidLink encodes 'unknown finger pressure' as NaN (iPad fingers have no force sensor), and the anti-forgery finiteness gate rejected the entire packet — silently disabling the touch plane while pen (real Pencil force, always finite) worked. Coordinates keep the strict gate (they feed injector scaling); pressureOrDistance now sanitizes non-finite to 0.0, the spec's own 'unknown', which the pen path already maps to full-scale ink on contact. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-23 17:48:17 +02:00
enricobuehlerandClaude Fable 5	f938174d86	debug(gamestream): hex-dump the first few undecodable pointer packets ... Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-23 17:48:17 +02:00
enricobuehlerandClaude Fable 5	40611cd54d	debug(gamestream): surface the pointer plane's silent failure modes ... An on-glass 'touch does nothing' currently leaves NO trace: log the first SS_TOUCH per session at info (proves the client sends + we decode), and warn when a packet carrying a pointer magic fails the body parse (layout mismatch) instead of vanishing into the unknown-magic drop. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-23 17:48:17 +02:00
enricobuehlerandClaude Fable 5	98b97d7d76	fix(android/input): stop mouse back/forward leaking to nav + IME popping on hardware typing ... Two Android TV M&K regressions from the c90343c2 overhaul, both user-reported: 1. Mouse back/forward buttons doubled as Android navigation while streaming. The BUTTON_BACK/FORWARD motion edges already go over the wire as X1/X2, but Android's input reader ALSO synthesizes KEYCODE_BACK/FORWARD key events from those buttons unconditionally (stamped SOURCE_MOUSE, no FLAG_FALLBACK) — and the guard only swallowed the FLAG_FALLBACK variant, so the duplicate reached the BackHandler and yanked the user out of the stream. Swallow mouse-sourced BACK/FORWARD too; a remote/keyboard BACK is never mouse-sourced and still exits. 2. The soft keyboard popped up on physical-keyboard typing. KeyCaptureView (the always-focused IME/capture anchor) unconditionally claimed to be a text editor with a live editable InputConnection, so the TV IME counted input as active and showed its UI the moment hardware keys arrived. Gate the editor identity on imeShown (the user actually summoning the keyboard via gesture / remote toggle), with restartInput on both edges so the gate is re-read, and an onKeyPreIme BACK hook so an IME self-dismissal can't leave the gate stale. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-23 17:07:18 +02:00