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Revert "feat(audio): loopback feeder mode — all app audio under exclusive/ASIO (#865)" (#867)

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This reverts commit 9a58a55fe8.
This commit is contained in:
Byron Gamatos
2026-07-11 14:56:35 +02:00
committed by GitHub
parent f09c4a217f
commit f00ba2217d
2 changed files with 21 additions and 266 deletions
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tests/js/renderer_bus_feeder.test.js
+11 -146
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@@ -50,42 +50,17 @@ function makeFakeContext(sampleRate = 48000) {
this.mediaSourceEl = el;
return { connect() {}, disconnect() {} };
},
createMediaStreamSource(stream) {
this.mediaStreamSource = stream;
return { connect() {}, disconnect() {} };
},
close() { this.closed = true; return Promise.resolve(); },
};
return ctx;
}
// Fake getDisplayMedia stream for the loopback-capture path.
function makeLoopbackStream({ suppressed = true } = {}) {
const stopped = [];
const audioTrack = {
kind: 'audio',
stop() { stopped.push('audio'); },
getSettings: () => (suppressed ? { suppressLocalAudioPlayback: true } : {}),
};
const videoTrack = { kind: 'video', stop() { stopped.push('video'); } };
return {
__stopped: stopped,
getAudioTracks: () => [audioTrack],
getVideoTracks: () => [videoTrack],
getTracks: () => [videoTrack, audioTrack],
};
}
// `displayMedia`: undefined → loopback capture unavailable (Docker sphere /
// old desktop main); a function → used as navigator.mediaDevices.getDisplayMedia.
function makeSandbox({ isAudioRunning = () => true, exclusive = () => true, displayMedia } = {}) {
const calls = { setRendererBus: [], pushRendererAudio: [], setPageMuted: [] };
function makeSandbox({ isAudioRunning = () => true, exclusive = () => true } = {}) {
const calls = { setRendererBus: [], pushRendererAudio: [] };
const api = {
isAudioRunning: () => Promise.resolve(isAudioRunning()),
setRendererBus: (en, g) => { calls.setRendererBus.push([en, g]); return Promise.resolve(); },
pushRendererAudio: (buf, rate) => { calls.pushRendererAudio.push([buf.length, rate]); },
setPageMuted: (m) => { calls.setPageMuted.push(m); return Promise.resolve(m); },
};
class FakeWorkletNode {
@@ -110,7 +85,6 @@ function makeSandbox({ isAudioRunning = () => true, exclusive = () => true, disp
__createdContexts: [],
__audioEl: { id: 'audio' },
__calls: calls,
navigator: { mediaDevices: displayMedia ? { getDisplayMedia: displayMedia } : {} },
window: null,
};
sandbox.window = {
@@ -137,21 +111,12 @@ function makeStemsGraph() {
};
}
// Surface-mode (stems/element) tests run WITHOUT getDisplayMedia: the first
// tick probes loopback, fails, and latches _loopbackUnavailable; the second
// tick exercises the fallback surface mode. This mirrors an old desktop main
// without the display-media handler.
async function reevaluateWithFallback(sb) {
await sb.window._reevaluateRendererBus(); // loopback probe → unavailable
await sb.window._reevaluateRendererBus(); // surface fallback
}
test('stems graph + exclusive output → bus enabled, stems ctx null-sinked (loopback unavailable)', async () => {
test('stems graph + exclusive output → bus enabled, stems ctx null-sinked', async () => {
const sb = makeSandbox({ exclusive: () => true });
const graph = makeStemsGraph();
sb.window.feedBack.stems.audioGraph = graph;
await reevaluateWithFallback(sb);
await sb.window._reevaluateRendererBus();
assert.deepEqual(sb.__calls.setRendererBus.at(-1), [true, 1.0], 'bus enabled');
assert.equal(graph.context.sinkIdCalls.at(-1)?.type, 'none', 'stems ctx re-pointed at null sink');
@@ -163,7 +128,7 @@ test('output returns to shared → bus disabled, sink restored', async () => {
const graph = makeStemsGraph();
sb.window.feedBack.stems.audioGraph = graph;
await reevaluateWithFallback(sb);
await sb.window._reevaluateRendererBus();
excl = false;
await sb.window._reevaluateRendererBus();
@@ -180,27 +145,26 @@ test('stems graph + shared output → feeder stays off (no double audio)', async
assert.equal(sb.__calls.setRendererBus.length, 0, 'bus never touched in shared mode');
});
test('element song + exclusive → element captured into bus (loopback unavailable)', async () => {
test('element song + exclusive → element captured into bus', async () => {
const sb = makeSandbox({ exclusive: () => true });
sb.window._currentSongAudio = { url: '/api/sloppak/x.sloppak/file/stems/full.ogg' };
sb.window._juceMode = false;
await reevaluateWithFallback(sb);
await sb.window._reevaluateRendererBus();
assert.equal(sb.__createdContexts.length, 1, 'capture context created');
assert.equal(sb.__createdContexts[0].mediaSourceEl, sb.__audioEl, 'element source captured');
assert.deepEqual(sb.__calls.setRendererBus.at(-1), [true, 1.0], 'bus enabled');
});
test('native-transport song, loopback unavailable → surface modes stay off', async () => {
test('song riding the native transport (_juceMode) → feeder stays off', async () => {
const sb = makeSandbox({ exclusive: () => true });
sb.window._currentSongAudio = { url: '/audio/song.ogg' };
sb.window._juceMode = true;
await reevaluateWithFallback(sb);
await sb.window._reevaluateRendererBus();
assert.ok(!sb.__calls.setRendererBus.some(([en]) => en === true),
'bus never ENABLED (failed-probe cleanup may disable it)');
assert.equal(sb.__calls.setRendererBus.length, 0, 'native transport owns the song');
assert.equal(sb.__createdContexts.length, 0, 'no capture context created');
});
@@ -208,7 +172,7 @@ test('stems graph replaced mid-engagement → re-engages on the new graph', asyn
const sb = makeSandbox({ exclusive: () => true });
const g1 = makeStemsGraph();
sb.window.feedBack.stems.audioGraph = g1;
await reevaluateWithFallback(sb);
await sb.window._reevaluateRendererBus();
const g2 = makeStemsGraph();
sb.window.feedBack.stems.audioGraph = g2;
@@ -218,105 +182,6 @@ test('stems graph replaced mid-engagement → re-engages on the new graph', asyn
assert.deepEqual(sb.__calls.setRendererBus.at(-1), [true, 1.0], 're-enabled for new graph');
});
// ── Loopback mode (whole-app capture) ────────────────────────────────────────
test('exclusive output + loopback available → engages without any song loaded', async () => {
const stream = makeLoopbackStream();
const sb = makeSandbox({ exclusive: () => true, displayMedia: () => Promise.resolve(stream) });
await sb.window._reevaluateRendererBus();
assert.deepEqual(sb.__calls.setRendererBus.at(-1), [true, 1.0], 'bus enabled for whole session');
assert.ok(stream.__stopped.includes('video'), 'unused video track stopped');
assert.equal(sb.__createdContexts.at(-1)?.mediaStreamSource, stream, 'loopback stream captured');
assert.equal(sb.__calls.setPageMuted.length, 0, 'suppress constraint honoured — no page mute');
});
test('loopback context is closed on disengage (no orphaned tap worklet)', async () => {
let excl = true;
const stream = makeLoopbackStream();
const sb = makeSandbox({ exclusive: () => excl, displayMedia: () => Promise.resolve(stream) });
await sb.window._reevaluateRendererBus(); // engage loopback
const lbCtx = sb.__createdContexts.at(-1);
assert.equal(lbCtx?.mediaStreamSource, stream, 'loopback engaged');
assert.notEqual(lbCtx.closed, true, 'context live while engaged');
excl = false;
await sb.window._reevaluateRendererBus(); // disengage
assert.equal(lbCtx.closed, true, 'loopback context closed on disengage');
assert.ok(stream.__stopped.includes('audio'), 'capture stream stopped');
});
test('loopback preferred over stems when both available', async () => {
const stream = makeLoopbackStream();
const sb = makeSandbox({ exclusive: () => true, displayMedia: () => Promise.resolve(stream) });
const graph = makeStemsGraph();
sb.window.feedBack.stems.audioGraph = graph;
await sb.window._reevaluateRendererBus();
assert.equal(graph.context.sinkIdCalls.length, 0, 'stems ctx untouched — loopback owns capture');
assert.equal(sb.__createdContexts.at(-1)?.mediaStreamSource, stream, 'loopback engaged');
});
test('suppressLocalAudioPlayback unsupported → page-mute fallback, unmuted on disengage', async () => {
let excl = true;
const stream = makeLoopbackStream({ suppressed: false });
const sb = makeSandbox({ exclusive: () => excl, displayMedia: () => Promise.resolve(stream) });
await sb.window._reevaluateRendererBus();
assert.deepEqual(sb.__calls.setPageMuted, [true], 'page muted as fallback');
excl = false;
await sb.window._reevaluateRendererBus();
assert.deepEqual(sb.__calls.setPageMuted, [true, false], 'page unmuted on disengage');
assert.deepEqual(sb.__calls.setRendererBus.at(-1), [false, 0], 'bus disabled');
});
test('getDisplayMedia rejected → sticky fallback to surface modes', async () => {
const sb = makeSandbox({
exclusive: () => true,
displayMedia: () => Promise.reject(new DOMException('denied', 'NotAllowedError')),
});
const graph = makeStemsGraph();
sb.window.feedBack.stems.audioGraph = graph;
await sb.window._reevaluateRendererBus(); // probe fails, latches unavailable
await sb.window._reevaluateRendererBus(); // falls back to stems
assert.equal(graph.context.sinkIdCalls.at(-1)?.type, 'none', 'stems fallback engaged');
assert.deepEqual(sb.__calls.setRendererBus.at(-1), [true, 1.0], 'bus enabled via fallback');
});
test('element capture collision (createMediaElementSource throws) → no poisoned state, clean retry', async () => {
const sb = makeSandbox({ exclusive: () => true }); // loopback unavailable
sb.window._currentSongAudio = { url: '/api/sloppak/x.sloppak/file/stems/full.ogg' };
// First capture attempt collides (highway analyser owns the element).
let collide = true;
const origFactory = sb.AudioContext;
sb.__createdContexts.length = 0;
// Patch contexts so createMediaElementSource throws while colliding.
sb.AudioContext = function () {
const c = origFactory();
const orig = c.createMediaElementSource.bind(c);
c.createMediaElementSource = (el) => {
if (collide) throw new DOMException('already connected', 'InvalidStateError');
return orig(el);
};
c.close = () => Promise.resolve();
return c;
};
await reevaluateWithFallback(sb); // element engage fails (collision)
assert.ok(!sb.__calls.setRendererBus.some(([en]) => en === true), 'bus never left enabled');
collide = false;
await sb.window._reevaluateRendererBus(); // retry succeeds — no TypeError, fresh ctx
assert.deepEqual(sb.__calls.setRendererBus.at(-1), [true, 1.0], 'element engaged after collision cleared');
});
test('engine stops → bus disabled', async () => {
let running = true;
const sb = makeSandbox({ isAudioRunning: () => running, exclusive: () => true });