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fix: waterfall monitor audio delay and unresponsive stop button

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- _waitForPlayback now only succeeds on playing/timeupdate events, not
  loadeddata/canplay which fire from just the WAV header before real
  audio arrives
- stopMonitor() pauses audio and updates UI immediately instead of
  blocking on the backend stop request (1+ second delay)
- Reduced backend audio stop sleep from 1.0s to 0.15s; the start
  retry loop already handles USB contention

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Smittix
2026-02-23 20:59:40 +00:00
parent b0af1d16d2
commit f889c53d92
5 changed files with 514 additions and 495 deletions
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33
static/js/modes/waterfall.js
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@@ -900,19 +900,27 @@ const Waterfall = (function () {
resolve(ok);
};
const onReady = () => finish(true);
// Only treat actual playback as success. `loadeddata` and
// `canplay` fire when just the WAV header arrives — before any
// real audio samples have been decoded — which caused the
// monitor to report "started" while the stream was still silent.
const onReady = () => {
if (player.currentTime > 0 || (!player.paused && player.readyState >= 4)) {
finish(true);
}
};
const onFail = () => finish(false);
const events = ['playing', 'timeupdate', 'canplay', 'loadeddata'];
const events = ['playing', 'timeupdate'];
const failEvents = ['error', 'abort', 'stalled', 'ended'];
events.forEach((evt) => player.addEventListener(evt, onReady));
failEvents.forEach((evt) => player.addEventListener(evt, onFail));
timer = setTimeout(() => {
finish(!player.paused && (player.currentTime > 0 || player.readyState >= 2));
finish(!player.paused && player.currentTime > 0);
}, timeoutMs);
if (!player.paused && (player.currentTime > 0 || player.readyState >= 2)) {
if (!player.paused && player.currentTime > 0) {
finish(true);
}
});
@@ -2571,6 +2579,7 @@ const Waterfall = (function () {
}
if (attempt < maxAttempts) {
_setMonitorState(`Waiting for audio stream (attempt ${attempt}/${maxAttempts})...`);
await _wait(220 * attempt);
continue;
}
@@ -2813,12 +2822,9 @@ const Waterfall = (function () {
clearTimeout(_monitorRetuneTimer);
_audioConnectNonce += 1;
try {
await fetch('/receiver/audio/stop', { method: 'POST' });
} catch (_) {
// Ignore backend stop errors
}
// Immediately pause audio and update the UI so the user gets instant
// feedback. The backend cleanup (which can block for 1-2 s while the
// SDR process group is reaped) happens afterwards.
_stopSmeter();
_setUnlockVisible(false);
_audioUnlockRequired = false;
@@ -2836,6 +2842,13 @@ const Waterfall = (function () {
_setVisualStatus('READY');
}
// Backend stop is fire-and-forget; UI is already updated above.
try {
await fetch('/receiver/audio/stop', { method: 'POST' });
} catch (_) {
// Ignore backend stop errors
}
if (resumeWaterfall && _active) {
_resumeWaterfallAfterMonitor = false;
await start();