Keep Redux loaded across capture failures and diagnose grip actions

docs/poc.md

@@ -5,8 +5,8 @@ initialize OpenVR, open a microphone, run ASR, download files or inject input.
 
 ## Implemented
 
-- Opt-in OpenVR RGBA overlay with head/left-hand placement, status, recording timer,
+- Opt-in OpenVR RGBA overlay with world-space default and selectable wrist/head
-  paginated UTF-8 preview, Record/Cancel/Insert/Enter/Quit controls.
+  mounts, status, recording timer, paginated UTF-8 preview and explicit controls.
 - Remappable SteamVR actions. Default Steam Frame grip bindings use the observed
   `frame_controller` profile. Right: short tap, then hold the second squeeze to
   record; release to transcribe. Left: two short taps request explicit Enter.
@@ -17,7 +17,10 @@ initialize OpenVR, open a microphone, run ASR, download files or inject input.
   still transmit your voice: this app does **not** mute VRChat or any other app.
 - Persistent local Redux worker, correlated bounded pipes, private tmpfs clips,
   cancellation/reaping and deadlines; exact pinned model SHA-256 verification.
-  Model imports are lazy and loading is offline. No cloud/desktop fallback.
+  Model imports are lazy and loading is offline. Normal repeats, request-local
+  transcription failures and microphone failures retain the loaded model;
+  microphone device streams close outside capture. A cancelled in-flight request
+  or broken worker protocol may require reloading. No cloud/desktop fallback.
 - Gamescope IME v2 generated bindings, per-action short-lived lease, unavailable
   handling, UTF-8/control validation and explicit separate Submit action for Enter.
 - Idempotent user-local release-archive installer: SHA-256, safe extraction,
@@ -81,14 +84,17 @@ That is a producer workflow, not an end-user compiler requirement.
 
 ```sh
 ./build-native/frameyap --check-input --socket gamescope-0
-./build-native/frameyap --check-overlay --assets "$PWD/assets" --font /path/font.ttf --head
+./build-native/frameyap --check-overlay --assets "$PWD/assets" --mount world
-./build-native/frameyap --check-controls --assets "$PWD/assets" --font /path/font.ttf --head
+./build-native/frameyap --check-controls --assets "$PWD/assets" --mount world
 ```
 
 The first acquires/releases an IME without text/actions. The second displays a
 five-second inert panel. The third displays a 30-second diagnostic panel and
-reports gestures, **without microphone or input injection**. Active action handles
+reports pointer actions, SteamVR action activity, tracking and read-only legacy
-are not proof that gestures were delivered. Checks must be explicitly launched
+grip state, **without microphone or input injection**. Mount clicks in check
+modes do not save a preference. A SteamVR error code or inactive grip means the
+gesture cannot be accepted; raw grip reads do not authorize a fallback binding.
+Action handles alone are not proof that gestures were delivered. Checks must be explicitly launched
 while the user expects the panel. Normal CLI/help/version remain inert.
 
 The ARM64 OpenVR loader's default `/data/work/openvrpaths.vrpath` failed on the

src/audio.cpp

@@ -8,13 +8,19 @@
 
 namespace frameyap {
 namespace { void check(bool result) { if (!result) throw std::runtime_error(std::string("Microphone: ") + SDL_GetError()); } }
-Audio::~Audio() { cancel(); }
+Audio::~Audio() {
+    cancel();
+    if (initialized_) SDL_QuitSubSystem(SDL_INIT_AUDIO);
+}
 void Audio::start() {
     if (stream_) throw std::runtime_error("Already recording");
-    check(SDL_InitSubSystem(SDL_INIT_AUDIO)); initialized_ = true;
+    // Keep SDL's audio backend initialized across utterances, but own the
+    // recording device only while actually capturing. Reinitializing PipeWire
+    // after every clip can fail even though the local model remains healthy.
+    if (!initialized_) { check(SDL_InitSubSystem(SDL_INIT_AUDIO)); initialized_ = true; }
     SDL_AudioSpec spec{SDL_AUDIO_F32, 1, 16000};
     stream_ = SDL_OpenAudioDeviceStream(SDL_AUDIO_DEVICE_DEFAULT_RECORDING, &spec, nullptr, nullptr);
-    if (!stream_) { cancel(); check(false); }
+    if (!stream_) throw std::runtime_error(std::string("Microphone: ") + SDL_GetError());
     pcm_.clear(); pcm_.reserve(320000);
     started_ = last_data_ = std::chrono::steady_clock::now();
     try { check(SDL_ResumeAudioStreamDevice(stream_)); }
@@ -51,20 +57,20 @@ bool Audio::poll() {
 }
 std::vector<float> Audio::finish() {
     if (!stream_) return {};
-    check(SDL_PauseAudioStreamDevice(stream_));
+    try {
-    check(SDL_FlushAudioStream(stream_));
+        check(SDL_PauseAudioStreamDevice(stream_));
-    drain();
+        check(SDL_FlushAudioStream(stream_));
-    auto result = std::move(pcm_);
+        drain();
-    cancel();
+        auto result = std::move(pcm_);
-    return result;
+        cancel();
+        return result;
+    } catch (...) { cancel(); throw; }
 }
 void Audio::cancel() {
     if (stream_) SDL_DestroyAudioStream(stream_);
     stream_ = nullptr;
     // Best effort clearing of the owned buffer; no persistent recording/logging.
     std::fill(pcm_.begin(), pcm_.end(), 0.0f); pcm_.clear();
-    if (initialized_) SDL_QuitSubSystem(SDL_INIT_AUDIO);
-    initialized_ = false;
 }
 int Audio::seconds() const {
     return stream_ ? int(std::chrono::duration_cast<std::chrono::seconds>(std::chrono::steady_clock::now() - started_).count()) : 0;

src/main.cpp

@@ -76,7 +76,7 @@ int main(int argc, char** argv) {
             if (options.assets.empty()) throw std::runtime_error("--assets required");
             if (mode == "--check-overlay" || mode == "--check-controls") {
                 frameyap::InstanceLock lock;
-                frameyap::Overlay overlay(options.assets, options.font, options.mount);
+                frameyap::Overlay overlay(options.assets, options.font, options.mount, false);
                 overlay.draw({"FrameYap five-second visual check", "No audio captured. No text or Enter delivered.", "Controls inactive during this check.", false, false});
                 for (vr::TrackedDeviceIndex_t i = 0; i < vr::k_unMaxTrackedDeviceCount; ++i) {
                     if (vr::VRSystem()->GetTrackedDeviceClass(i) != vr::TrackedDeviceClass_Controller) continue;
@@ -89,17 +89,32 @@ int main(int argc, char** argv) {
                     const auto end = std::chrono::steady_clock::now() + std::chrono::seconds(30);
                     std::string status;
                     bool held = false;
+                    std::string last_action = "Press panel controls or tap then hold right grip. No mic or typing.";
+                    auto action_name = [](frameyap::UiAction action) {
+                        switch (action) {
+                        case frameyap::UiAction::BeginRecord: return "BeginRecord";
+                        case frameyap::UiAction::EndRecord: return "EndRecord";
+                        case frameyap::UiAction::Record: return "Record";
+                        case frameyap::UiAction::Cancel: return "Cancel";
+                        case frameyap::UiAction::Insert: return "Insert";
+                        case frameyap::UiAction::Enter: return "Enter";
+                        case frameyap::UiAction::Quit: return "Quit";
+                        case frameyap::UiAction::Toggle: return "Toggle";
+                        }
+                        return "Unknown";
+                    };
                     while (std::chrono::steady_clock::now() < end) {
-                        overlay.draw({"Controls check ONLY - no mic or typing", "Tap then hold right grip; double-tap left grip.",
-                                      held ? "HOLD gesture recognized. Release to finish." : "Try grips or click buttons. Auto-closes after 30 seconds.", true, held});
                         for (auto action : overlay.poll()) {
                             if (action == frameyap::UiAction::Quit) return 0;
                             if (action == frameyap::UiAction::BeginRecord) held = true;
                             if (action == frameyap::UiAction::EndRecord || action == frameyap::UiAction::Cancel) held = false;
-                            std::cout << "Control action=" << static_cast<int>(action) << " (diagnostic only)" << std::endl;
+                            last_action = std::string(action_name(action)) + " received; diagnostic only.";
+                            std::cout << last_action << std::endl;
                         }
                         auto next = overlay.controls_status();
                         if (next != status) { status = next; std::cout << status << std::endl; }
+                        overlay.draw({"Controls ONLY - " + std::string(held ? "HOLD recognized" : "no microphone or typing"),
+                                      status, last_action, true, held});
                         std::this_thread::sleep_for(std::chrono::milliseconds(10));
                     }
                 } else {

src/overlay.cpp

@@ -64,11 +64,14 @@ struct Overlay::Impl {
     std::array<vr::TrackedDevicePose_t, vr::k_unMaxTrackedDeviceCount> poses{};
     bool grip_capture = false, ptt_capture = false;
     bool focus = true;
+    bool persist_mount = true;
+    vr::EVRInputError action_update_error = vr::VRInputError_None;
 
-    Impl(const std::string& assets, const std::string& font, std::optional<Mount> requested)
+    Impl(const std::string& assets, const std::string& font, std::optional<Mount> requested, bool persist)
         : settings_path(default_mount_settings_path()),
           mount(requested ? *requested : load_mount(settings_path)),
-          surface(font.empty() ? (std::filesystem::path(assets) / "fonts/Inconsolata-Regular.ttf").string() : font, mount) {
+          surface(font.empty() ? (std::filesystem::path(assets) / "fonts/Inconsolata-Regular.ttf").string() : font, mount),
+          persist_mount(persist) {
         const auto action_path = absolute_file(std::filesystem::path(assets) / "actions.json");
         absolute_file(std::filesystem::path(assets) / "bindings_knuckles.json");
         try {
@@ -234,10 +237,11 @@ struct Overlay::Impl {
                 focus = true; reset_input(result); break;
             case vr::VREvent_OverlayGamepadFocusLost:
             case vr::VREvent_OverlayFocusChanged:
-                // Pointer/gamepad overlay focus is not OS keyboard focus or action
+                // Dashboard laser/gamepad focus can change between the two grip
-                // activity. Cancel the old gesture, then require neutral rearm;
+                // squeezes. It is not action activity or controller tracking loss:
-                // do not permanently latch global grip actions off.
+                // invalidate pointer presses, but leave a physical grip gesture
-                reset_input(result); break;
+                // armed. Hidden overlays and true OpenVR input capture still reset.
+                surface.reset_pointers(); break;
             case vr::VREvent_MouseMove:
                 surface.pointer_move(event.data.mouse.cursorIndex, event.data.mouse.x, H - event.data.mouse.y);
                 break;
@@ -251,7 +255,7 @@ struct Overlay::Impl {
                     if (event_result.action) result.push_back(*event_result.action);
                     if (event_result.mount) {
                         mount = *event_result.mount;
-                        save_failed = !save_mount(settings_path, mount);
+                        save_failed = persist_mount && !save_mount(settings_path, mount);
                         world_ready = false;
                         applied_mount.reset();
                     }
@@ -266,7 +270,8 @@ struct Overlay::Impl {
         set.ulActionSet = action_set;
         set.ulRestrictedToDevice = vr::k_ulInvalidInputValueHandle;
         set.nPriority = 0; // normal priority; no experimental scene-input overrides
-        if (input->UpdateActionState(&set, sizeof(set), 1) != vr::VRInputError_None) {
+        action_update_error = input->UpdateActionState(&set, sizeof(set), 1);
+        if (action_update_error != vr::VRInputError_None) {
             reset_input(result); return result;
         }
         auto [la, ld] = digital(0);
@@ -300,15 +305,35 @@ struct Overlay::Impl {
     }
 };
 
-Overlay::Overlay(const std::string& assets, const std::string& font, std::optional<Mount> mount)
+Overlay::Overlay(const std::string& assets, const std::string& font, std::optional<Mount> mount, bool persist_mount)
-    : impl_(std::make_unique<Impl>(assets, font, mount)) {}
+    : impl_(std::make_unique<Impl>(assets, font, mount, persist_mount)) {}
 Overlay::~Overlay() = default;
 std::vector<UiAction> Overlay::poll() { return impl_->poll(); }
 void Overlay::draw(const Panel& panel) { impl_->draw(panel); }
 std::string Overlay::controls_status() {
-    auto left = impl_->digital(0), right = impl_->digital(1);
+    // Diagnostic only: distinguish SteamVR binding/activity from our stricter
-    return std::string("Grip actions tracked/active: left=") + (left.first ? "yes" : "no") +
+    // pose/role gate. Raw legacy state is read-only and may be unavailable.
-           " right=" + (right.first ? "yes" : "no");
+    std::string result = "SteamVR update=" + std::to_string(int(impl_->action_update_error));
+    for (size_t i = 0; i < 2; ++i) {
+        const auto role = i == 0 ? vr::TrackedControllerRole_LeftHand : vr::TrackedControllerRole_RightHand;
+        const auto device = impl_->system->GetTrackedDeviceIndexForControllerRole(role);
+        const bool tracked = device < impl_->poses.size() && impl_->poses[device].bPoseIsValid &&
+                             impl_->system->IsTrackedDeviceConnected(device);
+        vr::InputDigitalActionData_t data{};
+        const auto error = impl_->input->GetDigitalActionData(impl_->actions[i], &data, sizeof(data), vr::k_ulInvalidInputValueHandle);
+        vr::InputOriginInfo_t origin{};
+        const bool origin_ok = error == vr::VRInputError_None && data.activeOrigin != vr::k_ulInvalidInputValueHandle &&
+            impl_->input->GetOriginTrackedDeviceInfo(data.activeOrigin, &origin, sizeof(origin)) == vr::VRInputError_None &&
+            origin.trackedDeviceIndex == device;
+        vr::VRControllerState_t raw{};
+        const bool raw_ok = device < impl_->poses.size() && impl_->system->GetControllerState(device, &raw, sizeof(raw));
+        result += std::string(i == 0 ? "\nLeft:" : "\nRight:") +
+            " err=" + std::to_string(int(error)) + " bound=" + (data.bActive ? "Y" : "N") +
+            " down=" + (data.bState ? "Y" : "N") + " pose=" + (tracked ? "Y" : "N") +
+            " origin=" + (origin_ok ? "Y" : "N") +
+            " raw=" + (raw_ok ? ((raw.ulButtonPressed & vr::ButtonMaskFromId(vr::k_EButton_Grip)) ? "down" : "up") : "n/a");
+    }
+    return result;
 }
 
 int registration(const std::string& manifest, bool remove, bool autostart) {

src/overlay.hpp

@@ -17,7 +17,8 @@ struct Panel {
 };
 class Overlay {
 public:
-    Overlay(const std::string& assets, const std::string& font = {}, std::optional<Mount> mount = {});
+    Overlay(const std::string& assets, const std::string& font = {}, std::optional<Mount> mount = {},
+            bool persist_mount = true);
     ~Overlay();
     Overlay(const Overlay&) = delete;
     Overlay& operator=(const Overlay&) = delete;

src/runtime.cpp

@@ -74,20 +74,33 @@ int run(const Options& options) {
         try {
             if (auto reply = worker.poll()) {
                 if (reply->id == session.id() && session.state() == State::Transcribing) {
-                    if (!reply->error.empty()) throw std::runtime_error(reply->error);
+                    if (!reply->error.empty()) {
-                    session.reply(reply->id, reply->text);
+                        // E is a request-local error. The child still owns its
-                    detail = session.text().empty() ? "No speech recognized; try again." : "Focus your destination, then Insert. Cancel discards.";
+                        // loaded model and can accept the next utterance.
+                        session.fail(); detail = reply->error + "; model ready. Record to retry.";
+                    } else {
+                        session.reply(reply->id, reply->text);
+                        detail = session.text().empty() ? "No speech recognized; try again." : "Focus your destination, then Insert. Cancel discards.";
+                    }
                 }
             }
             if (worker.ready()) session.ready();
-            if (audio.recording() && audio.poll()) stop_record();
         } catch (const std::exception& e) {
             audio.cancel(); worker.stop();
             if (session.state() != State::Review && session.state() != State::Queued) session.fail();
             detail = e.what(); // Preserve an already-correlated preview if the worker dies.
         }
+        try {
+            if (audio.recording() && audio.poll()) stop_record();
+        } catch (const std::exception& e) {
+            // A microphone failure is not a model failure. Release the device,
+            // retain the loaded worker, and allow Record to retry capture.
+            audio.cancel(); session.fail(); detail = e.what();
+        }
         // Drawing precedes input polling: Enter is disabled until Ready is visible.
-        Panel panel{state_label(session.state()), session.text(), detail,
+        const auto status = session.state() == State::Error && worker.ready()
+            ? "Retry available - local model still loaded" : state_label(session.state());
+        Panel panel{status, session.text(), detail,
                     session.state() != State::Error && session.state() != State::Warming && session.state() != State::Transcribing,
                     session.state() == State::Recording,
                     session.state() != State::Warming && session.state() != State::Transcribing && session.state() != State::Review};
@@ -106,8 +119,10 @@ int run(const Options& options) {
                 case UiAction::Cancel: {
                     auto state = session.state();
                     audio.cancel(); session.cancel(); detail = "Discarded. Microphone closed.";
-                    if (state == State::Warming || state == State::Transcribing || state == State::Error) {
+                    if (state == State::Warming || state == State::Transcribing) {
                         worker.stop(); session.fail(); detail = "Cancelled. Record to reload local worker.";
+                    } else if (state == State::Error && !worker.ready()) {
+                        session.fail(); detail = "Worker unavailable. Record to reload local worker.";
                     }
                     break;
                 }
@@ -131,9 +146,11 @@ int run(const Options& options) {
                     break;
                 }
             } catch (const std::exception& e) {
-                // Input lease failures preserve preview; capture failures release mic.
+                // Input lease failures preserve preview. Capture failures close
+                // only the microphone; submit failures stop their own child if
+                // the IPC stream was partially written.
                 if (session.state() == State::Recording || session.state() == State::Transcribing) {
-                    audio.cancel(); worker.stop(); session.fail();
+                    audio.cancel(); session.fail();
                 }
                 detail = e.what();
             }

tests/core_test.cpp

@@ -27,5 +27,11 @@ int main() {
     CHECK(s.record()); CHECK(s.finish(16000)); CHECK(s.reply(s.id(), ""));
     CHECK(s.state() == State::Ready); CHECK(!s.take_insert());
     CHECK(s.record()); CHECK(s.finish(16000)); s.fail(); CHECK(!s.reply(s.id(), "bad"));
+    // Request-local model or microphone errors can leave the worker loaded:
+    // discard the failed session and record again without a new warmup state.
+    s.cancel(); CHECK(s.state() == State::Ready);
+    CHECK(s.record()); CHECK(s.finish(16000)); CHECK(s.reply(s.id(), "again"));
+    CHECK(s.take_insert() == "again"); CHECK(s.record());
+    s.fail(); s.cancel(); CHECK(s.record());
     std::cout << "core checks passed\n";
 }

tests/test_worker.py

@@ -43,6 +43,7 @@ def fake_child():
         time.sleep(130)
         return
     worker.send_frame(1, b"Y")
+    requests = 0
     while True:
         msg = worker.read_frame(0)
         if msg is None:
@@ -52,6 +53,7 @@ def fake_child():
             time.sleep(70)
             continue
         assert len(msg) == 9 and msg[:1] == b"T"
+        requests += 1
         clip = Path(args.clip_dir) / "clip.raw"
         assert clip.stat().st_size == 3200 * 4
         ident = msg[1:9]
@@ -60,6 +62,9 @@ def fake_child():
         if args.model == "oversized-frame":
             os.write(1, struct.pack("<I", 65537))
             continue
+        if args.model == "request-error" and requests == 1:
+            worker.send_frame(1, b"E", ident + b"transcription failed")
+            continue
         text = b"a" * 4097 if args.model == "long" else "héllo 世界".encode()
         worker.send_frame(1, b"R", ident + text)
         if args.model == "duplicate":

tests/worker_test.cpp

@@ -55,6 +55,15 @@ int main(int argc, char** argv) {
             (void)entry;
             throw std::runtime_error("private directory leaked");
         }
+        worker.start(argv[1], argv[2], "request-error", 2);
+        until([&] { worker.poll(); return worker.ready(); });
+        worker.submit(200, clip);
+        until([&] { reply = worker.poll(); return reply.has_value(); });
+        assert(reply->id == 200 && reply->error == "transcription failed" && worker.ready());
+        worker.submit(201, clip); // A request-local failure must not unload Redux.
+        until([&] { reply = worker.poll(); return reply.has_value(); });
+        assert(reply->id == 201 && reply->text == "héllo 世界" && worker.ready());
+        worker.stop();
         worker.start(argv[1], argv[2], "fail", 2);
         bool failed = false;
         until([&] {