steam-frame/baketnk--frame-yap
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Keep capture stream running between PTT utterances

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baketnk committed 2026-09-24 14:04:31 -04:00
1 parent a9d6762ebd
commit 8417212ed2
8 files changed
+165 -42
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src/runtime.cpp
+15 -10
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@@ -47,7 +47,7 @@ int run(const Options& options) {
std::string detail = "Review mode. Other apps may also hear your mic. Enter is separate.";
bool quit = false;
auto warm = [&] {
worker.stop(); session = Session{};
audio.close(); worker.stop(); session = Session{};
worker.start(options.python, options.worker, options.model, options.threads);
detail = "Loading local model; microphone closed. Record again when Ready.";
};
@@ -63,6 +63,7 @@ int run(const Options& options) {
auto start_record = [&] {
if (session.state() == State::Review || session.state() == State::Transcribing || session.state() == State::Warming) return;
if (!worker.ready()) { warm(); return; }
if (!audio.open()) audio.prepare(); // recovery only; normal PTT never opens the device
if (session.state() == State::Error) session.cancel();
if (!session.record()) return;
audio.start();
@@ -86,16 +87,19 @@ int run(const Options& options) {
}
if (worker.ready()) session.ready();
} catch (const std::exception& e) {
audio.cancel(); worker.stop();
audio.close(); 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();
// Prepare after model warm-up, not on PTT. Keep draining/discarding
// idle samples so neither a device transition nor old speech reaches
// the next clip. A capture failure still requires an explicit retry.
if (session.state() == State::Ready && !audio.open() && worker.ready()) audio.prepare();
if (audio.open() && 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();
// A microphone failure is not a model failure.
audio.close(); session.fail(); detail = e.what();
}
// Drawing precedes input polling: Enter is disabled until Ready is visible.
const auto status = session.state() == State::Error && worker.ready()
@@ -118,10 +122,11 @@ int run(const Options& options) {
case UiAction::EndRecord: stop_record(); break;
case UiAction::Cancel: {
auto state = session.state();
audio.cancel(); session.cancel(); detail = "Discarded. Microphone closed.";
audio.cancel(); session.cancel(); detail = "Discarded. Idle microphone samples are discarded.";
if (state == State::Warming || state == State::Transcribing) {
worker.stop(); session.fail(); detail = "Cancelled. Record to reload local worker.";
audio.close(); worker.stop(); session.fail(); detail = "Cancelled. Record to reload local worker.";
} else if (state == State::Error && !worker.ready()) {
audio.close();
session.fail(); detail = "Worker unavailable. Record to reload local worker.";
}
break;
@@ -150,7 +155,7 @@ int run(const Options& options) {
// 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(); session.fail();
audio.close(); session.fail();
}
detail = e.what();
}
@@ -158,7 +163,7 @@ int run(const Options& options) {
}
std::this_thread::sleep_for(std::chrono::milliseconds(10));
}
audio.cancel(); session.cancel(); worker.stop();
audio.close(); session.cancel(); worker.stop();
return 0;
}
}