feat(api): add deterministic API selection strategy

This commit is contained in:
ashley 2025-10-05 16:02:16 +02:00
parent 0c8780051a
commit c8cd0b0d6c

View File

@ -2,8 +2,8 @@
var _yt_player = videojs;
var versionclient = "youtube.player.web_20250917_22_RC00"
document.addEventListener("DOMContentLoaded", () => {
document.addEventListener("DOMContentLoaded", () => {
const player = videojs("video", {
controls: true,
autoplay: false,
@ -11,8 +11,7 @@ var versionclient = "youtube.player.web_20250917_22_RC00"
errorDisplay: false,
});
// quick params + lightweight progress seed
const qs = new URLSearchParams(location.search);
const qs = new URLSearchParams(location.search);
const qua = qs.get("quality") || "";
const vidKey = qs.get("v");
try { if (vidKey) localStorage.setItem(`progress-${vidKey}`, 0); } catch {}
@ -57,10 +56,6 @@ var versionclient = "youtube.player.web_20250917_22_RC00"
const MICRO_DRIFT = 0.035; // subtle rate nudge (s)
const EPS = 0.12; // buffer epsilon (s)
// buffer gate knobs (simple, conservative)
const MIN_AHEAD_PLAY = 0.20; // allow play when at least this much ahead is buffered
const MIN_AHEAD_UNSTALL = 0.60; // to leave a 'waiting' state, ensure a little more headroom
// guards
let volGuard = false;
let syncGuard = false; // block re-entrant sync
@ -75,33 +70,18 @@ var versionclient = "youtube.player.web_20250917_22_RC00"
// loop detection
let lastVideoTime = 0;
// --- buffer helpers (the "loading bar" checks) ---
function bufferedAheadSec(media, t) {
// helpers
function timeInBuffered(media, t) {
try {
const br = media.buffered;
if (!br || br.length === 0 || !isFinite(t)) return 0;
if (!br || br.length === 0 || !isFinite(t)) return false;
for (let i = 0; i < br.length; i++) {
const s = br.start(i), e = br.end(i);
if (t >= s - EPS && t <= e + EPS) return Math.max(0, e - t);
const s = br.start(i) - EPS, e = br.end(i) + EPS;
if (t >= s && t <= e) return true;
}
} catch {}
return 0;
return false;
}
function hasBufferedAtLeast(media, t, minAhead) {
try {
const rs = Number(media.readyState || 0);
// MDN: HAVE_FUTURE_DATA (3) ≈ some future frames; HAVE_ENOUGH_DATA (4) ≈ can likely play through
// We still insist on a tiny ahead-buffer to be safe across browsers.
if (!isFinite(t)) return false;
const ahead = bufferedAheadSec(media, t);
if (rs >= 3) return ahead >= Math.max(0, minAhead); // gate by look-ahead seconds
return ahead >= Math.max(minAhead, 0.25); // if readyState < 3, be stricter
} catch { return false; }
}
function bothHaveBufferedAtLeast(t, minAhead) {
return hasBufferedAtLeast(videoEl, t, minAhead) && hasBufferedAtLeast(audioEl, t, minAhead);
}
function timeInBuffered(media, t) { return bufferedAheadSec(media, t) > 0; }
function canPlayAt(media, t) {
try {
const rs = Number(media.readyState || 0);
@ -160,66 +140,20 @@ var versionclient = "youtube.player.web_20250917_22_RC00"
couplingGuard = false;
}
// buffer-gated resume (central brain)
let resumeWatchersAttached = false;
const RESUME_EVENTS = ["progress","canplay","canplaythrough","playing","loadeddata"];
function resumeIfReady() {
const t = Number(player.currentTime());
if (!isFinite(t)) return;
// If both already buffered enough, resume; else do nothing (stay paused quietly).
if (bothHaveBufferedAtLeast(t, MIN_AHEAD_UNSTALL)) {
detachResumeWatchers();
playBoth();
return;
}
// If user is on a fully buffered spot but very small headroom, don't spam; the watchers will retrigger soon.
}
function attachResumeWatchers() {
if (resumeWatchersAttached) return;
[videoEl, audioEl].forEach(el => RESUME_EVENTS.forEach(ev => el.addEventListener(ev, resumeIfReady, { passive: true })));
resumeWatchersAttached = true;
}
function detachResumeWatchers() {
if (!resumeWatchersAttached) return;
[videoEl, audioEl].forEach(el => RESUME_EVENTS.forEach(ev => el.removeEventListener(ev, resumeIfReady)));
resumeWatchersAttached = false;
}
function gatePauseThenResume() {
// Called on buffering; pauses and only resumes when we have clear headroom
pauseBoth();
attachResumeWatchers();
resumeIfReady();
}
// video is the boss: when it plays/pauses, audio mirrors (but we still gate on buffer)
// video is the boss: when it plays/pauses, audio mirrors
player.on("play", () => {
const t = Number(player.currentTime());
if (bothHaveBufferedAtLeast(t, MIN_AHEAD_PLAY)) {
if (audioEl.paused) audioEl.play()?.catch(()=>{});
startAutosync();
} else {
gatePauseThenResume();
}
if (audioEl.paused) audioEl.play()?.catch(()=>{});
startAutosync();
try { if ("mediaSession" in navigator) navigator.mediaSession.playbackState = "playing"; } catch {}
});
player.on("pause", () => {
if (!audioEl.paused) audioEl.pause();
stopAutosync();
detachResumeWatchers();
try { if ("mediaSession" in navigator) navigator.mediaSession.playbackState = "paused"; } catch {}
});
// if the platform tries to play/pause audio alone, route through video
audioEl.addEventListener("play", () => {
if (player.paused()) {
const t = Number(player.currentTime());
if (bothHaveBufferedAtLeast(t, MIN_AHEAD_PLAY)) playBoth();
else gatePauseThenResume();
}
});
audioEl.addEventListener("play", () => { if (player.paused()) playBoth(); });
audioEl.addEventListener("pause", () => {
if (audioPauseForSeek) return; // our deliberate pause (do not pause video)
if (!player.paused()) pauseBoth(); // any other pause → keep them in lockstep
@ -280,6 +214,7 @@ var versionclient = "youtube.player.web_20250917_22_RC00"
updateMSPositionState(false);
};
// IMPORTANT: when the OS seekbar is used, we pause the hidden audio first to kill the play/pause ping-pong, then restore state.
function msSeekTo(targetTime) {
const wasPlaying = !player.paused();
audioPauseForSeek = true;
@ -294,13 +229,10 @@ var versionclient = "youtube.player.web_20250917_22_RC00"
audioPauseForSeek = false;
}
tagState();
// buffer-gated resume on OS seekbar actions
const t = Number(player.currentTime());
if (wasPlaying && bothHaveBufferedAtLeast(t, MIN_AHEAD_PLAY)) playBoth();
else gatePauseThenResume();
if (wasPlaying) playBoth();
}
navigator.mediaSession.setActionHandler("play", () => { const t = Number(player.currentTime()); if (bothHaveBufferedAtLeast(t, MIN_AHEAD_PLAY)) playBoth(); else gatePauseThenResume(); tagState(); });
navigator.mediaSession.setActionHandler("play", () => { playBoth(); tagState(); });
navigator.mediaSession.setActionHandler("pause", () => { pauseBoth(); tagState(); });
navigator.mediaSession.setActionHandler("stop", () => {
pauseBoth();
@ -339,13 +271,12 @@ var versionclient = "youtube.player.web_20250917_22_RC00"
document.addEventListener("keydown", e => {
switch (e.code) {
case "AudioPlay":
case "MediaPlayPause": {
const t = Number(player.currentTime());
if (player.paused()) { if (bothHaveBufferedAtLeast(t, MIN_AHEAD_PLAY)) playBoth(); else gatePauseThenResume(); }
else pauseBoth();
case "MediaPlayPause":
if (player.paused()) playBoth(); else pauseBoth();
break;
case "AudioPause":
pauseBoth();
break;
}
case "AudioPause": pauseBoth(); break;
case "AudioNext":
case "MediaTrackNext": {
const t = Number(player.currentTime()) + 10;
@ -409,25 +340,20 @@ var versionclient = "youtube.player.web_20250917_22_RC00"
autosyncTimer = null;
}
// when user drags the player's own seekbar: if buffered, resume immediately; if not, wait quietly
// when user drags the player's own seekbar: pause audio immediately, then restore if needed
player.on("seeking", () => {
syncGuard = true;
playerSeekWasPlaying = !player.paused();
audioPauseForSeek = true;
try { audioEl.pause(); } catch {}
const target = Number(player.currentTime());
safeSetCT(audioEl, target);
safeSetCT(audioEl, Number(player.currentTime()));
audioPauseForSeek = false;
updateMSPositionState(false);
});
player.on("seeked", () => {
const t = Number(player.currentTime());
safeSetCT(audioEl, t);
safeSetCT(audioEl, Number(player.currentTime()));
syncGuard = false;
if (playerSeekWasPlaying) {
if (bothHaveBufferedAtLeast(t, MIN_AHEAD_PLAY)) playBoth();
else gatePauseThenResume();
}
if (playerSeekWasPlaying && bothPlayableAt(Number(player.currentTime()))) playBoth();
updateMSPositionState(false);
});
@ -452,20 +378,11 @@ var versionclient = "youtube.player.web_20250917_22_RC00"
const dur = Number(player.duration());
const vt = Number(player.currentTime());
if (isLooping() && isFinite(dur) && isFinite(vt) && dur - vt < 0.25) return;
gatePauseThenResume();
try { audioEl.pause(); } catch {}
});
// explicit network stalls behave the same
videoEl.addEventListener("stalled", () => { gatePauseThenResume(); }, { passive: true });
player.on("playing", () => {
// only start audio if both have enough, else stay paused & wait
const t = Number(player.currentTime());
if (bothHaveBufferedAtLeast(t, MIN_AHEAD_PLAY)) {
if (!player.paused()) audioEl.play()?.catch(()=>{});
startAutosync();
} else {
gatePauseThenResume();
}
if (!player.paused()) audioEl.play()?.catch(()=>{});
startAutosync();
});
// simple error surfacing
@ -539,9 +456,8 @@ var versionclient = "youtube.player.web_20250917_22_RC00"
if (audioReady && videoReady) {
const t = Number(player.currentTime());
if (isFinite(t) && Math.abs(Number(audioEl.currentTime) - t) > 0.1) safeSetCT(audioEl, t);
// initial start honors buffer gate strictly
if (bothHaveBufferedAtLeast(t, MIN_AHEAD_PLAY)) playBoth();
else { pauseBoth(); attachResumeWatchers(); resumeIfReady(); }
if (bothPlayableAt(t)) playBoth();
else { audioEl.pause(); player.pause(); }
setupMediaSession();
}
}
@ -558,16 +474,15 @@ var versionclient = "youtube.player.web_20250917_22_RC00"
// one-time click to satisfy autoplay policies
player.ready(() => {
const tryKick = () => {
const t = Number(player.currentTime());
if (audioReady && videoReady && player.paused()) {
if (bothHaveBufferedAtLeast(t, MIN_AHEAD_PLAY)) playBoth();
else gatePauseThenResume();
const t = Number(player.currentTime());
if (bothPlayableAt(t)) playBoth();
}
};
player.el().addEventListener("click", tryKick, { once: true });
});
});
// https://codeberg.org/ashley/poke/src/branch/main/src/libpoketube/libpoketube-youtubei-objects.json