fix(auto-thumbnail): [PKG-AUTO-THUMB-13] ignore registration after destroy

docs/compiled/artplayer-plugin-auto-thumbnail.js

@@ -4,4 +4,4 @@
  * (c) 2017-2026 Harvey Zhao
  * Released under the MIT License.
  */
-!function(e,t){"object"===typeof exports&&"undefined"!==typeof module?module.exports=t():"function"==typeof define&&define.amd?(e.artplayerPluginAutoThumbnail=t(),define(function(){return e.artplayerPluginAutoThumbnail})):(e="undefined"!==typeof globalThis?globalThis:e||self).artplayerPluginAutoThumbnail=t()}(this,function(){"use strict";function e(e){let t,n=!1;for(const r of e)try{r()}catch(i){n||(n=!0,t=i)}return{failed:n,failure:t}}function t(t,n){const i="function"===typeof n.requestVideoFrameCallback&&"function"===typeof n.cancelVideoFrameCallback;let r;function o(){const t=r;r=void 0;const i=e([()=>{n.onloadeddata=null},()=>{n.onseeked=null},()=>{t&&null!==t.timer&&clearTimeout(t.timer)},()=>{t&&null!==t.frame&&n.cancelVideoFrameCallback(t.frame)}]);if(i.failed)throw i.failure}return t.own(o),(e,a)=>{if(o(),!t.active())return;const u={frame:null,timer:null,sought:!1,presented:!i,retries:0,sequence:0,started:!1};r=u;const d=()=>t.active()&&r===u,c=t.guard(()=>{d()&&u.sought&&u.presented&&(o(),t.active()&&a())}),l=()=>{u.sought=!1,(()=>{if(!i)return;const e=++u.sequence;u.presented=!1;const r=u.frame;if(u.frame=null,null!==r&&n.cancelVideoFrameCallback(r),!d())return;let o=!1;const a=n.requestVideoFrameCallback(t.guard(()=>{d()&&e===u.sequence&&!o&&(o=!0,u.frame=null,u.presented=!0,c())}));d()&&e===u.sequence&&!o?u.frame=a:n.cancelVideoFrameCallback(a)})(),d()&&(n.currentTime=e)},s=t.guard(()=>{d()&&!u.started&&(u.started=!0,n.onloadeddata=null,n.onseeked=t.guard(()=>{if(!d()||n.seeking)return;const t=n.currentTime;if(d())if(!Number.isFinite(t)||Math.abs(t-e)>.05){if(++u.retries>3)throw new Error("Auto-thumbnail seek did not reach the requested time");l()}else u.sought=!0,c()}),l())});if(u.timer=setTimeout(t.guard(()=>{if(d())throw new Error("Auto-thumbnail frame readiness timed out")}),3e4),!d())return void clearTimeout(u.timer);const f=!i||n.readyState>=2;d()&&(f?s():n.onloadeddata=s)}}function n(e,n){const i=function(e){const t=document.createElement("video");e.own(()=>t.remove()),e.own(()=>t.load()),e.own(()=>t.removeAttribute("src")),e.own(()=>t.pause());for(const n of["onloadedmetadata","onloadeddata","onseeked","onerror"])e.own(()=>{t[n]=null});return e.active()?(t.crossOrigin="anonymous",t.muted=!0,t.playsInline=!0,t.tabIndex=-1,t.setAttribute("aria-hidden","true"),t.style.cssText="position:fixed;left:0;top:0;visibility:hidden;pointer-events:none;display:block;width:auto;height:auto;max-width:none;max-height:none",document.documentElement.appendChild(t),e.active()||t.remove(),t):t}(e);if(!e.active())return;let r=null;const o=()=>{const e=r;r=null,null!==e&&clearTimeout(e)};e.own(o),i.onerror=e.guard(()=>{throw i.error||new Error("Auto-thumbnail media failed to load")}),i.onloadedmetadata=e.guard(()=>{o(),i.onloadedmetadata=null;const r=i.duration,a=i.videoHeight,u=i.videoWidth,{height:d,canvasWidth:c,canvasHeight:l}=function(e,t){if(!Number.isFinite(t.duration)||t.duration<=0||!Number.isFinite(t.videoWidth)||t.videoWidth<=0||!Number.isFinite(t.videoHeight)||t.videoHeight<=0)throw new TypeError("Auto-thumbnail requires finite media duration and dimensions");const n=Math.floor(e.width*t.videoHeight/t.videoWidth),i=Math.trunc(10*e.width),r=Math.trunc(n*Math.ceil(e.number/10));if(![n,i,r].every(e=>Number.isSafeInteger(e)&&e>0&&e<=4294967295))throw new RangeError("Auto-thumbnail canvas dimensions are invalid");return{height:n,canvasWidth:i,canvasHeight:r}}(n,{duration:r,videoHeight:a,videoWidth:u});if(!e.active())return;i.width=u,i.height=a,i.style.width=`${u}px`,i.style.height=`${a}px`;const s=document.createElement("canvas");if(e.own(()=>{s.height=0}),e.own(()=>{s.width=0}),!e.active())return;if(s.width=c,!e.active())return;if(s.height=l,!e.active())return;const f=s.getContext("2d");if(!f)throw new Error("Auto-thumbnail canvas context is unavailable");if(!e.active())return;const h=t(e,i),m=function(e,t){let n;function i(){const e=n;n=void 0,e&&null!==e.timer&&clearTimeout(e.timer)}return e.own(i),r=>{if(!e.active())return;if(n)throw new Error("Auto-thumbnail encoding is already pending");const o={timer:null};n=o;const a=()=>e.active()&&n===o;o.timer=setTimeout(e.guard(()=>{if(a())throw new Error("Auto-thumbnail encoding timed out")}),3e4),a()?t.toBlob(e.guard(t=>{a()&&(i(),e.active()&&r(t))}),"image/jpeg"):clearTimeout(o.timer)}}(e,s);let v=0;const b=e.guard(()=>{v>=n.number?e.dispose():h(r*v/n.number,e.guard(()=>{f.drawImage(i,v%10*n.width,Math.floor(v/10)*d,n.width,d),e.active()&&m(t=>{e.publish(t,{height:d,column:10,number:n.number,width:n.width,scale:n.scale}),e.active()&&(v+=1,b())})}))});b()}),e.active()&&(r=setTimeout(e.guard(()=>{if(null!==r)throw new Error("Auto-thumbnail metadata timed out")}),3e4),e.active()?i.src=n.url:o())}function i(t){return async i=>{const r=e=>console.warn("ArtPlayer auto-thumbnail failed:",e),o=function(t,n){let i,r,o=!1;const a=new Set;function u(e){void 0!==e&&a.delete(e)&&URL.revokeObjectURL(e)}function d(){const e=i;i=void 0,e?.dispose()}return{start:functioLine truncated
+!function(e,t){"object"===typeof exports&&"undefined"!==typeof module?module.exports=t():"function"==typeof define&&define.amd?(e.artplayerPluginAutoThumbnail=t(),define(function(){return e.artplayerPluginAutoThumbnail})):(e="undefined"!==typeof globalThis?globalThis:e||self).artplayerPluginAutoThumbnail=t()}(this,function(){"use strict";function e(e){let t,n=!1;for(const r of e)try{r()}catch(i){n||(n=!0,t=i)}return{failed:n,failure:t}}function t(t,n){const i="function"===typeof n.requestVideoFrameCallback&&"function"===typeof n.cancelVideoFrameCallback;let r;function o(){const t=r;r=void 0;const i=e([()=>{n.onloadeddata=null},()=>{n.onseeked=null},()=>{t&&null!==t.timer&&clearTimeout(t.timer)},()=>{t&&null!==t.frame&&n.cancelVideoFrameCallback(t.frame)}]);if(i.failed)throw i.failure}return t.own(o),(e,a)=>{if(o(),!t.active())return;const u={frame:null,timer:null,sought:!1,presented:!i,retries:0,sequence:0,started:!1};r=u;const d=()=>t.active()&&r===u,l=t.guard(()=>{d()&&u.sought&&u.presented&&(o(),t.active()&&a())}),c=()=>{u.sought=!1,(()=>{if(!i)return;const e=++u.sequence;u.presented=!1;const r=u.frame;if(u.frame=null,null!==r&&n.cancelVideoFrameCallback(r),!d())return;let o=!1;const a=n.requestVideoFrameCallback(t.guard(()=>{d()&&e===u.sequence&&!o&&(o=!0,u.frame=null,u.presented=!0,l())}));d()&&e===u.sequence&&!o?u.frame=a:n.cancelVideoFrameCallback(a)})(),d()&&(n.currentTime=e)},s=t.guard(()=>{d()&&!u.started&&(u.started=!0,n.onloadeddata=null,n.onseeked=t.guard(()=>{if(!d()||n.seeking)return;const t=n.currentTime;if(d())if(!Number.isFinite(t)||Math.abs(t-e)>.05){if(++u.retries>3)throw new Error("Auto-thumbnail seek did not reach the requested time");c()}else u.sought=!0,l()}),c())});if(u.timer=setTimeout(t.guard(()=>{if(d())throw new Error("Auto-thumbnail frame readiness timed out")}),3e4),!d())return void clearTimeout(u.timer);const f=!i||n.readyState>=2;d()&&(f?s():n.onloadeddata=s)}}function n(e,n){const i=function(e){const t=document.createElement("video");e.own(()=>t.remove()),e.own(()=>t.load()),e.own(()=>t.removeAttribute("src")),e.own(()=>t.pause());for(const n of["onloadedmetadata","onloadeddata","onseeked","onerror"])e.own(()=>{t[n]=null});return e.active()?(t.crossOrigin="anonymous",t.muted=!0,t.playsInline=!0,t.tabIndex=-1,t.setAttribute("aria-hidden","true"),t.style.cssText="position:fixed;left:0;top:0;visibility:hidden;pointer-events:none;display:block;width:auto;height:auto;max-width:none;max-height:none",document.documentElement.appendChild(t),e.active()||t.remove(),t):t}(e);if(!e.active())return;let r=null;const o=()=>{const e=r;r=null,null!==e&&clearTimeout(e)};e.own(o),i.onerror=e.guard(()=>{throw i.error||new Error("Auto-thumbnail media failed to load")}),i.onloadedmetadata=e.guard(()=>{o(),i.onloadedmetadata=null;const r=i.duration,a=i.videoHeight,u=i.videoWidth,{height:d,canvasWidth:l,canvasHeight:c}=function(e,t){if(!Number.isFinite(t.duration)||t.duration<=0||!Number.isFinite(t.videoWidth)||t.videoWidth<=0||!Number.isFinite(t.videoHeight)||t.videoHeight<=0)throw new TypeError("Auto-thumbnail requires finite media duration and dimensions");const n=Math.floor(e.width*t.videoHeight/t.videoWidth),i=Math.trunc(10*e.width),r=Math.trunc(n*Math.ceil(e.number/10));if(![n,i,r].every(e=>Number.isSafeInteger(e)&&e>0&&e<=4294967295))throw new RangeError("Auto-thumbnail canvas dimensions are invalid");return{height:n,canvasWidth:i,canvasHeight:r}}(n,{duration:r,videoHeight:a,videoWidth:u});if(!e.active())return;i.width=u,i.height=a,i.style.width=`${u}px`,i.style.height=`${a}px`;const s=document.createElement("canvas");if(e.own(()=>{s.height=0}),e.own(()=>{s.width=0}),!e.active())return;if(s.width=l,!e.active())return;if(s.height=c,!e.active())return;const f=s.getContext("2d");if(!f)throw new Error("Auto-thumbnail canvas context is unavailable");if(!e.active())return;const m=t(e,i),h=function(e,t){let n;function i(){const e=n;n=void 0,e&&null!==e.timer&&clearTimeout(e.timer)}return e.own(i),r=>{if(!e.active())return;if(n)throw new Error("Auto-thumbnail encoding is already pending");const o={timer:null};n=o;const a=()=>e.active()&&n===o;o.timer=setTimeout(e.guard(()=>{if(a())throw new Error("Auto-thumbnail encoding timed out")}),3e4),a()?t.toBlob(e.guard(t=>{a()&&(i(),e.active()&&r(t))}),"image/jpeg"):clearTimeout(o.timer)}}(e,s);let v=0;const b=e.guard(()=>{v>=n.number?e.dispose():m(r*v/n.number,e.guard(()=>{f.drawImage(i,v%10*n.width,Math.floor(v/10)*d,n.width,d),e.active()&&h(t=>{e.publish(t,{height:d,column:10,number:n.number,width:n.width,scale:n.scale}),e.active()&&(v+=1,b())})}))});b()}),e.active()&&(r=setTimeout(e.guard(()=>{if(null!==r)throw new Error("Auto-thumbnail metadata timed out")}),3e4),e.active()?i.src=n.url:o())}function i(t){return async i=>{if(i.isDestroy)return{name:"artplayerPluginAutoThumbnail"};const r=e=>console.warn("ArtPlayer auto-thumbnail failed:",e),o=function(t,n){let i,r,o=!1;const a=new Set;function u(e){void 0!==e&&a.delete(e)&&URL.revokeObjectURL(e)}functiLine truncated

docs/compiled/artplayer-plugin-auto-thumbnail.legacy.js

@@ -4,4 +4,4 @@
  * (c) 2017-2026 Harvey Zhao
  * Released under the MIT License.
  */
-!function(e,t){"object"===typeof exports&&"undefined"!==typeof module?module.exports=t():"function"==typeof define&&define.amd?(e.artplayerPluginAutoThumbnail=t(),define(function(){return e.artplayerPluginAutoThumbnail})):(e="undefined"!==typeof globalThis?globalThis:e||self).artplayerPluginAutoThumbnail=t()}(this,function(){"use strict";var e=Object.defineProperty,t=Object.getOwnPropertySymbols,n=Object.prototype.hasOwnProperty,r=Object.prototype.propertyIsEnumerable,i=(t,n,r)=>n in t?e(t,n,{enumerable:!0,configurable:!0,writable:!0,value:r}):t[n]=r;function o(e){let t,n=!1;for(const i of e)try{i()}catch(r){n||(n=!0,t=r)}return{failed:n,failure:t}}function a(e,a){let u,l,d=!1;const c=new Set;function s(e){void 0!==e&&c.delete(e)&&URL.revokeObjectURL(e)}function f(){const e=u;u=void 0,null==e||e.dispose()}return{start:function(){if(d)return;const f=u,h=[];let m=!1;const v={active:()=>!d&&!m&&u===v,own(e){if(m){const t=o([e]);t.failed&&a(t.failure)}else h.push(e)},dispose(){if(m)return;m=!0,u===v&&(u=void 0);const e=o(h.splice(0).reverse());e.failed&&a(e.failure)},fail(e){v.active()&&(v.dispose(),a(e))},guard:e=>(...t)=>{if(v.active())try{return e(...t)}catch(n){v.fail(n)}},publish(u,d){if(!v.active())return;if(!u)throw new Error("Auto-thumbnail encoding returned no Blob");const f=URL.createObjectURL(u);if(c.add(f),!v.active())return void s(f);const h=l;l=f;try{e(((e,o)=>{for(var a in o||(o={}))n.call(o,a)&&i(e,a,o[a]);if(t)for(var a of t(o))r.call(o,a)&&i(e,a,o[a]);return e})({url:f},d))}catch(m){l===f&&(l=void 0!==h&&c.has(h)?h:void 0);const e=o([()=>s(f)]);throw e.failed&&a(e.failure),m}s(h)}};return u=v,null==f||f.dispose(),v},cancel:f,destroy:function(){if(d)return;d=!0;const e=o([f,...[...c].map(e=>()=>s(e))]);l=void 0,e.failed&&a(e.failure)},get closed(){return d}}}function u(e,t){const n="function"===typeof t.requestVideoFrameCallback&&"function"===typeof t.cancelVideoFrameCallback;let r;function i(){const e=r;r=void 0;const n=o([()=>{t.onloadeddata=null},()=>{t.onseeked=null},()=>{e&&null!==e.timer&&clearTimeout(e.timer)},()=>{e&&null!==e.frame&&t.cancelVideoFrameCallback(e.frame)}]);if(n.failed)throw n.failure}return e.own(i),(o,a)=>{if(i(),!e.active())return;const u={frame:null,timer:null,sought:!1,presented:!n,retries:0,sequence:0,started:!1};r=u;const l=()=>e.active()&&r===u,d=e.guard(()=>{l()&&u.sought&&u.presented&&(i(),e.active()&&a())}),c=()=>{u.sought=!1,(()=>{if(!n)return;const r=++u.sequence;u.presented=!1;const i=u.frame;if(u.frame=null,null!==i&&t.cancelVideoFrameCallback(i),!l())return;let o=!1;const a=t.requestVideoFrameCallback(e.guard(()=>{l()&&r===u.sequence&&!o&&(o=!0,u.frame=null,u.presented=!0,d())}));l()&&r===u.sequence&&!o?u.frame=a:t.cancelVideoFrameCallback(a)})(),l()&&(t.currentTime=o)},s=e.guard(()=>{l()&&!u.started&&(u.started=!0,t.onloadeddata=null,t.onseeked=e.guard(()=>{if(!l()||t.seeking)return;const e=t.currentTime;if(l())if(!Number.isFinite(e)||Math.abs(e-o)>.05){if(++u.retries>3)throw new Error("Auto-thumbnail seek did not reach the requested time");c()}else u.sought=!0,d()}),c())});if(u.timer=setTimeout(e.guard(()=>{if(l())throw new Error("Auto-thumbnail frame readiness timed out")}),3e4),!l())return void clearTimeout(u.timer);const f=!n||t.readyState>=2;l()&&(f?s():t.onloadeddata=s)}}function l(e,t){const n=function(e){const t=document.createElement("video");e.own(()=>t.remove()),e.own(()=>t.load()),e.own(()=>t.removeAttribute("src")),e.own(()=>t.pause());for(const n of["onloadedmetadata","onloadeddata","onseeked","onerror"])e.own(()=>{t[n]=null});return e.active()?(t.crossOrigin="anonymous",t.muted=!0,t.playsInline=!0,t.tabIndex=-1,t.setAttribute("aria-hidden","true"),t.style.cssText="position:fixed;left:0;top:0;visibility:hidden;pointer-events:none;display:block;width:auto;height:auto;max-width:none;max-height:none",document.documentElement.appendChild(t),e.active()||t.remove(),t):t}(e);if(!e.active())return;let r=null;const i=()=>{const e=r;r=null,null!==e&&clearTimeout(e)};e.own(i),n.onerror=e.guard(()=>{throw n.error||new Error("Auto-thumbnail media failed to load")}),n.onloadedmetadata=e.guard(()=>{i(),n.onloadedmetadata=null;const r=n.duration,o=n.videoHeight,a=n.videoWidth,{height:l,canvasWidth:d,canvasHeight:c}=function(e,t){if(!Number.isFinite(t.duration)||t.duration<=0||!Number.isFinite(t.videoWidth)||t.videoWidth<=0||!Number.isFinite(t.videoHeight)||t.videoHeight<=0)throw new TypeError("Auto-thumbnail requires finite media duration and dimensions");const n=Math.floor(e.width*t.videoHeight/t.videoWidth),r=Math.trunc(10*e.width),i=Math.trunc(n*Math.ceil(e.number/10));if(![n,r,i].every(e=>Number.isSafeInteger(e)&&e>0&&e<=4294967295))throw new RangeError("Auto-thumbnail canvas dimensions are invalid");return{height:n,canvasWidth:r,canvasHeight:i}}(t,{duration:r,videoHeight:o,videoWidth:a});if(!e.active())return;n.width=a,n.height=o,n.style.width=`${a}px`,n.style.height=`${o}px`;const s=document.createElement("canvas");if(e.own(()=>{s.height=0}),e.own(()=Line truncated
+!function(e,t){"object"===typeof exports&&"undefined"!==typeof module?module.exports=t():"function"==typeof define&&define.amd?(e.artplayerPluginAutoThumbnail=t(),define(function(){return e.artplayerPluginAutoThumbnail})):(e="undefined"!==typeof globalThis?globalThis:e||self).artplayerPluginAutoThumbnail=t()}(this,function(){"use strict";var e=Object.defineProperty,t=Object.getOwnPropertySymbols,n=Object.prototype.hasOwnProperty,r=Object.prototype.propertyIsEnumerable,i=(t,n,r)=>n in t?e(t,n,{enumerable:!0,configurable:!0,writable:!0,value:r}):t[n]=r;function o(e){let t,n=!1;for(const i of e)try{i()}catch(r){n||(n=!0,t=r)}return{failed:n,failure:t}}function a(e,a){let u,l,d=!1;const c=new Set;function s(e){void 0!==e&&c.delete(e)&&URL.revokeObjectURL(e)}function f(){const e=u;u=void 0,null==e||e.dispose()}return{start:function(){if(d)return;const f=u,m=[];let h=!1;const v={active:()=>!d&&!h&&u===v,own(e){if(h){const t=o([e]);t.failed&&a(t.failure)}else m.push(e)},dispose(){if(h)return;h=!0,u===v&&(u=void 0);const e=o(m.splice(0).reverse());e.failed&&a(e.failure)},fail(e){v.active()&&(v.dispose(),a(e))},guard:e=>(...t)=>{if(v.active())try{return e(...t)}catch(n){v.fail(n)}},publish(u,d){if(!v.active())return;if(!u)throw new Error("Auto-thumbnail encoding returned no Blob");const f=URL.createObjectURL(u);if(c.add(f),!v.active())return void s(f);const m=l;l=f;try{e(((e,o)=>{for(var a in o||(o={}))n.call(o,a)&&i(e,a,o[a]);if(t)for(var a of t(o))r.call(o,a)&&i(e,a,o[a]);return e})({url:f},d))}catch(h){l===f&&(l=void 0!==m&&c.has(m)?m:void 0);const e=o([()=>s(f)]);throw e.failed&&a(e.failure),h}s(m)}};return u=v,null==f||f.dispose(),v},cancel:f,destroy:function(){if(d)return;d=!0;const e=o([f,...[...c].map(e=>()=>s(e))]);l=void 0,e.failed&&a(e.failure)},get closed(){return d}}}function u(e,t){const n="function"===typeof t.requestVideoFrameCallback&&"function"===typeof t.cancelVideoFrameCallback;let r;function i(){const e=r;r=void 0;const n=o([()=>{t.onloadeddata=null},()=>{t.onseeked=null},()=>{e&&null!==e.timer&&clearTimeout(e.timer)},()=>{e&&null!==e.frame&&t.cancelVideoFrameCallback(e.frame)}]);if(n.failed)throw n.failure}return e.own(i),(o,a)=>{if(i(),!e.active())return;const u={frame:null,timer:null,sought:!1,presented:!n,retries:0,sequence:0,started:!1};r=u;const l=()=>e.active()&&r===u,d=e.guard(()=>{l()&&u.sought&&u.presented&&(i(),e.active()&&a())}),c=()=>{u.sought=!1,(()=>{if(!n)return;const r=++u.sequence;u.presented=!1;const i=u.frame;if(u.frame=null,null!==i&&t.cancelVideoFrameCallback(i),!l())return;let o=!1;const a=t.requestVideoFrameCallback(e.guard(()=>{l()&&r===u.sequence&&!o&&(o=!0,u.frame=null,u.presented=!0,d())}));l()&&r===u.sequence&&!o?u.frame=a:t.cancelVideoFrameCallback(a)})(),l()&&(t.currentTime=o)},s=e.guard(()=>{l()&&!u.started&&(u.started=!0,t.onloadeddata=null,t.onseeked=e.guard(()=>{if(!l()||t.seeking)return;const e=t.currentTime;if(l())if(!Number.isFinite(e)||Math.abs(e-o)>.05){if(++u.retries>3)throw new Error("Auto-thumbnail seek did not reach the requested time");c()}else u.sought=!0,d()}),c())});if(u.timer=setTimeout(e.guard(()=>{if(l())throw new Error("Auto-thumbnail frame readiness timed out")}),3e4),!l())return void clearTimeout(u.timer);const f=!n||t.readyState>=2;l()&&(f?s():t.onloadeddata=s)}}function l(e,t){const n=function(e){const t=document.createElement("video");e.own(()=>t.remove()),e.own(()=>t.load()),e.own(()=>t.removeAttribute("src")),e.own(()=>t.pause());for(const n of["onloadedmetadata","onloadeddata","onseeked","onerror"])e.own(()=>{t[n]=null});return e.active()?(t.crossOrigin="anonymous",t.muted=!0,t.playsInline=!0,t.tabIndex=-1,t.setAttribute("aria-hidden","true"),t.style.cssText="position:fixed;left:0;top:0;visibility:hidden;pointer-events:none;display:block;width:auto;height:auto;max-width:none;max-height:none",document.documentElement.appendChild(t),e.active()||t.remove(),t):t}(e);if(!e.active())return;let r=null;const i=()=>{const e=r;r=null,null!==e&&clearTimeout(e)};e.own(i),n.onerror=e.guard(()=>{throw n.error||new Error("Auto-thumbnail media failed to load")}),n.onloadedmetadata=e.guard(()=>{i(),n.onloadedmetadata=null;const r=n.duration,o=n.videoHeight,a=n.videoWidth,{height:l,canvasWidth:d,canvasHeight:c}=function(e,t){if(!Number.isFinite(t.duration)||t.duration<=0||!Number.isFinite(t.videoWidth)||t.videoWidth<=0||!Number.isFinite(t.videoHeight)||t.videoHeight<=0)throw new TypeError("Auto-thumbnail requires finite media duration and dimensions");const n=Math.floor(e.width*t.videoHeight/t.videoWidth),r=Math.trunc(10*e.width),i=Math.trunc(n*Math.ceil(e.number/10));if(![n,r,i].every(e=>Number.isSafeInteger(e)&&e>0&&e<=4294967295))throw new RangeError("Auto-thumbnail canvas dimensions are invalid");return{height:n,canvasWidth:r,canvasHeight:i}}(t,{duration:r,videoHeight:o,videoWidth:a});if(!e.active())return;n.width=a,n.height=o,n.style.width=`${a}px`,n.style.height=`${o}px`;const s=document.createElement("canvas");if(e.own(()=>{s.height=0}),e.own(()=Line truncated

docs/compiled/artplayer-plugin-auto-thumbnail.mjs

@@ -402,6 +402,8 @@ function extract(job, config) {
 }
 function artplayerPluginAutoThumbnail(option) {
   return async (art) => {
+    if (art.isDestroy)
+      return { name: "artplayerPluginAutoThumbnail" };
     const report = (error) => console.warn("ArtPlayer auto-thumbnail failed:", error);
     const session = createSession((config) => {
       art.thumbnails = config;

package.json

@@ -51,7 +51,7 @@
     "ci:build": "yarn build:types && yarn build all && yarn build:i18n && yarn build:ts && yarn build:llm && yarn build:vconsole && yarn build:console && yarn build:site-notices && yarn build:test && yarn build:docs && yarn test:imports",
     "test:imports": "node --test test/esm.test.js test/i18n.test.js test/ssr.test.js test/asr-distribution.test.js",
     "typecheck": "node scripts/typecheck.mjs",
-    "test:unit": "node --test test/danmuku-setting.test.js test/danmuku-heatmap.test.js test/danmuku-renderer.test.js test/danmuku-scheduler.test.js test/danmuku-worker-client.test.js test/danmuku-input.test.js test/danmuku-parser.test.js test/danmuku-failures.test.js test/danmuku-mask-failures.test.js test/danmuku-mask-lifecycle.test.js test/asr-encoding.test.js test/asr-lifecycle.test.js test/asr-audio.test.js test/asr.test.js test/jassub.test.js test/jassub-registration.test.js test/jassub-runtime.test.js test/jassub-vendor-lifecycle.test.js test/jassub-frame-polyfill.test.js test/jassub-offscreen.test.js test/multiple-subtitles-ass.test.js test/multiple-subtitles-caption.test.js test/multiple-subtitles-merge.test.js test/multiple-subtitles-entities.test.js test/multiple-subtitles-lifecycle.test.js test/multiple-subtitles-failures.test.js test/multiple-subtitles.test.js test/multiple-subtitles-vendor.test.js test/vtt-thumbnail-parser.test.js test/vtt-thumbnail-lifecycle.test.js test/vtt-thumbnail.test.js test/auto-thumbnail-exports.test.js test/auto-thumbnail-canvas.test.js test/auto-thumbnail-frames.test.js test/auto-thumbnail-encoding.test.js test/auto-thumbnail-metadata.test.js test/auto-thumbnail-lifecycle.test.js test/auto-thumbnail.test.js test/thumbnail-emitter.test.js test/thumbnail-runtime.test.js test/thumbnail-vendor.test.js test/thumbnail-lifecycle.test.js test/thumbnail-input.test.js test/thumbnail.test.js test/iframe-navigation.test.js test/iframe-boundaries.test.js test/iframe-lifecycle.test.js test/iframe.test.js test/mediabunny.test.js test/mediabunny-shim.test.js test/mediabunny-coordination.test.js test/mediabunny-video.test.js test/mediabunny-audio.test.js test/mediabunny-hls.test.js test/mediabunny-entry.test.js test/mediabunny-capability.test.js test/mediabunny-load.test.js test/mediabunny-input.test.js test/dpip.test.js test/dpip-lifecycle.test.js test/canvas.test.js test/canvas-lifecycle.test.js test/ambilight.test.js test/ambilight-lifecycle.test.js test/ambilight-proxy.test.js test/vast-exports.test.js test/vast.test.js test/vast-lifecycle.test.js test/vast-compatibility.test.js test/ads.test.js test/ads-lifecycle.test.js test/playback.test.js test/dash-control.test.js test/dash-contract.test.js test/dash-lifecycle.test.js test/dash-events.test.js test/hls-control.test.js test/audio-track.test.js test/public-behavior.test.js test/helpers.test.js test/chapter.test.js test/utils.test.js test/resource-scope.test.js test/instance-lifecycle.test.js test/options.test.js test/media-hosts.test.js test/plugins.test.js test/source.test.js test/playback-properties.test.js test/media-events.test.js test/template-resources.test.js test/core-vendor.test.js test/component-resources.test.js test/setting-model.test.js test/setting-layout.test.js test/setting-resources.test.js test/subtitle.test.js test/display-native.test.js test/display-video-fullscreen.test.js test/display-pip.test.js test/display-mini.test.js test/display-sizing.test.js test/display-orientation.test.js test/hotkey.test.js test/listener-registry.test.js test/global-events.test.js test/pointer-events.test.js test/gesture.test.js test/event-scheduling.test.js test/notice.test.js test/fast-forward.test.js test/auto-playback.test.js test/builtin-layers.test.js test/prompt-components.test.js test/screenshot.test.js test/thumbnails.test.js test/progress.test.js test/environment.test.js test/storage.test.js test/facade-properties.test.js test/dom-boundaries.test.js test/initialization.test.js test/entry.test.js test/accessibility-button.test.js test/accessibility-focus.test.js test/accessibility-slider.test.js test/asr-fallback-routing.test.js test/asr-local-example.test.js test/asr-explicit-capture.test.js test/chromecast.test.js test/chromecast-failures.test.js test/chromecast-runtime.test.js test/asr-media-error.test.js test/thumbnail-cleanup-errors.test.js test/dash-cleanup-errors.test.js test/hls-example.test.js test/dash-example.test.js",
+    "test:unit": "node --test test/danmuku-setting.test.js test/danmuku-heatmap.test.js test/danmuku-renderer.test.js test/danmuku-scheduler.test.js test/danmuku-worker-client.test.js test/danmuku-input.test.js test/danmuku-parser.test.js test/danmuku-failures.test.js test/danmuku-mask-failures.test.js test/danmuku-mask-lifecycle.test.js test/asr-encoding.test.js test/asr-lifecycle.test.js test/asr-audio.test.js test/asr.test.js test/jassub.test.js test/jassub-registration.test.js test/jassub-runtime.test.js test/jassub-vendor-lifecycle.test.js test/jassub-frame-polyfill.test.js test/jassub-offscreen.test.js test/multiple-subtitles-ass.test.js test/multiple-subtitles-caption.test.js test/multiple-subtitles-merge.test.js test/multiple-subtitles-entities.test.js test/multiple-subtitles-lifecycle.test.js test/multiple-subtitles-failures.test.js test/multiple-subtitles.test.js test/multiple-subtitles-vendor.test.js test/vtt-thumbnail-parser.test.js test/vtt-thumbnail-lifecycle.test.js test/vtt-thumbnail.test.js test/auto-thumbnail-exports.test.js test/auto-thumbnail-canvas.test.js test/auto-thumbnail-frames.test.js test/auto-thumbnail-encoding.test.js test/auto-thumbnail-metadata.test.js test/auto-thumbnail-lifecycle.test.js test/auto-thumbnail-registration.test.js test/auto-thumbnail.test.js test/thumbnail-emitter.test.js test/thumbnail-runtime.test.js test/thumbnail-vendor.test.js test/thumbnail-lifecycle.test.js test/thumbnail-input.test.js test/thumbnail.test.js test/iframe-navigation.test.js test/iframe-boundaries.test.js test/iframe-lifecycle.test.js test/iframe.test.js test/mediabunny.test.js test/mediabunny-shim.test.js test/mediabunny-coordination.test.js test/mediabunny-video.test.js test/mediabunny-audio.test.js test/mediabunny-hls.test.js test/mediabunny-entry.test.js test/mediabunny-capability.test.js test/mediabunny-load.test.js test/mediabunny-input.test.js test/dpip.test.js test/dpip-lifecycle.test.js test/canvas.test.js test/canvas-lifecycle.test.js test/ambilight.test.js test/ambilight-lifecycle.test.js test/ambilight-proxy.test.js test/vast-exports.test.js test/vast.test.js test/vast-lifecycle.test.js test/vast-compatibility.test.js test/ads.test.js test/ads-lifecycle.test.js test/playback.test.js test/dash-control.test.js test/dash-contract.test.js test/dash-lifecycle.test.js test/dash-events.test.js test/hls-control.test.js test/audio-track.test.js test/public-behavior.test.js test/helpers.test.js test/chapter.test.js test/utils.test.js test/resource-scope.test.js test/instance-lifecycle.test.js test/options.test.js test/media-hosts.test.js test/plugins.test.js test/source.test.js test/playback-properties.test.js test/media-events.test.js test/template-resources.test.js test/core-vendor.test.js test/component-resources.test.js test/setting-model.test.js test/setting-layout.test.js test/setting-resources.test.js test/subtitle.test.js test/display-native.test.js test/display-video-fullscreen.test.js test/display-pip.test.js test/display-mini.test.js test/display-sizing.test.js test/display-orientation.test.js test/hotkey.test.js test/listener-registry.test.js test/global-events.test.js test/pointer-events.test.js test/gesture.test.js test/event-scheduling.test.js test/notice.test.js test/fast-forward.test.js test/auto-playback.test.js test/builtin-layers.test.js test/prompt-components.test.js test/screenshot.test.js test/thumbnails.test.js test/progress.test.js test/environment.test.js test/storage.test.js test/facade-properties.test.js test/dom-boundaries.test.js test/initialization.test.js test/entry.test.js test/accessibility-button.test.js test/accessibility-focus.test.js test/accessibility-slider.test.js test/asr-fallback-routing.test.js test/asr-local-example.test.js test/asr-explicit-capture.test.js test/chromecast.test.js test/chromecast-failures.test.js test/chromecast-runtime.test.js test/asr-media-error.test.js test/thumbnail-cleanup-errors.test.js test/dash-cleanup-errors.test.js test/hls-example.test.js test/dash-example.test.js",
     "test:coverage": "node --test test/coverage.test.js && node scripts/coverage.mjs",
     "test": "yarn test:node && yarn test:baseline",
     "test:browser": "playwright test",
@@ -87,7 +87,7 @@
     "test:iframe-types-package": "node refactor/scripts/iframe-package-types.mjs",
     "test:thumbnail": "node --test test/thumbnail-emitter.test.js test/thumbnail-runtime.test.js test/thumbnail-vendor.test.js test/thumbnail-lifecycle.test.js test/thumbnail-input.test.js test/thumbnail.test.js refactor/scripts/thumbnail-contract.test.mjs refactor/scripts/thumbnail-types.test.mjs test/thumbnail-cleanup-errors.test.js",
     "test:thumbnail-types-package": "node refactor/scripts/thumbnail-package-types.mjs",
-    "test:auto-thumbnail": "node --test test/auto-thumbnail-exports.test.js test/auto-thumbnail-canvas.test.js test/auto-thumbnail-frames.test.js test/auto-thumbnail-encoding.test.js test/auto-thumbnail-metadata.test.js test/auto-thumbnail-lifecycle.test.js test/auto-thumbnail.test.js refactor/scripts/auto-thumbnail-contract.test.mjs refactor/scripts/auto-thumbnail-types.test.mjs",
+    "test:auto-thumbnail": "node --test test/auto-thumbnail-exports.test.js test/auto-thumbnail-canvas.test.js test/auto-thumbnail-frames.test.js test/auto-thumbnail-encoding.test.js test/auto-thumbnail-metadata.test.js test/auto-thumbnail-lifecycle.test.js test/auto-thumbnail-registration.test.js test/auto-thumbnail.test.js refactor/scripts/auto-thumbnail-contract.test.mjs refactor/scripts/auto-thumbnail-types.test.mjs",
     "test:vtt-thumbnail": "node --test test/vtt-thumbnail-parser.test.js test/vtt-thumbnail-lifecycle.test.js test/vtt-thumbnail.test.js refactor/scripts/vtt-thumbnail-contract.test.mjs refactor/scripts/vtt-thumbnail-types.test.mjs",
     "test:vtt-thumbnail-types-package": "node refactor/scripts/vtt-thumbnail-package-types.mjs",
     "test:multiple-subtitles": "node --test test/multiple-subtitles-ass.test.js test/multiple-subtitles-caption.test.js test/multiple-subtitles-merge.test.js test/multiple-subtitles-entities.test.js test/multiple-subtitles-lifecycle.test.js test/multiple-subtitles-failures.test.js test/multiple-subtitles.test.js test/multiple-subtitles-vendor.test.js refactor/scripts/multiple-subtitles-contract.test.mjs refactor/scripts/multiple-subtitles-runtime-types.test.mjs refactor/scripts/multiple-subtitles-types.test.mjs",

packages/artplayer-plugin-auto-thumbnail/ARCHITECTURE.md

@@ -11,6 +11,11 @@ for video processing.
   read at each `video:loadedmetadata` event, including subsequent changes to the
   original options object. `restart` cancels the old decoder immediately. `destroy`
   closes the session and removes subscriptions. Partial registration is rolled back.
+  Before accessing host subscriptions, a truthy public `isDestroy` makes a delayed
+  registrar resolve with its unchanged name result and no resources. The internal
+  host flag is optional, preserving structural hosts without that property. Core
+  plugin-manager rejection policy is unchanged; this protects direct retained
+  registrars such as callbacks delivered after an asynchronous module load.
 - `src/options.ts` preserves truthy defaults and computes the ten-column layout.
   Coercible numeric JS inputs and fractional frame counts retain their previous
   behavior; raw option values are forwarded to the thumbnail configuration.
@@ -240,6 +245,15 @@ require the host's existing getter to have every generated-sheet field.
 
 ## Shared installed browser scope
 
+`test/auto-thumbnail-registration.test.js` covers destroyed hosts, unavailable
+destroyed-host members and successful extraction with false/absent flags. The
+`auto-thumbnail-registration.spec.js` browser regression installs a retained
+registrar after actual published/candidate core destruction, records subscriptions,
+and sends a late metadata event to prove no native video is allocated. It is in
+both the source collection and the installed roster; configuration alone does
+not prove a fresh installed run. Main/legacy regression evidence is tracked by
+PKG-AUTO-THUMB-13. This fix does not resolve AUTO-THUMB-PIXEL-01.
+
 autoThumbnailCandidate reads verified installed bytes through browser-candidate.js. Native video/JPEG lifecycle and pixel files retain their stub player host and exact presentation-callback/fallback limits. The historical file still loads its frozen old artifacts. Installed mode rejects frozen-workspace and explicit-artifact overrides. These are native extraction checks, not full core integration or first-frame acceptance on every engine.
 
 Use `yarn test:package --browser` and the shared scope rules in

packages/artplayer-plugin-auto-thumbnail/README.md

@@ -34,6 +34,9 @@ The registrar has type `(art: Artplayer) => Promise<Result>`. It resolves with
 `{ name: 'artplayerPluginAutoThumbnail' }` after subscribing to player events,
 before extraction completes. Generated sheets arrive progressively through the
 player's thumbnails configuration. Awaiting registration does not wait for them.
+If an application invokes a retained registrar after the player is destroyed,
+it resolves with the same name without subscribing or allocating a decoder.
+This does not override the core's own `plugins.add()` destruction checks.
 The options object is required; use `{}` for defaults. `height` is accepted by
 the runtime type for historical callers but remains ignored: the video aspect
 ratio determines sheet height. Numeric strings retain their old JavaScript

packages/artplayer-plugin-auto-thumbnail/dist/artplayer-plugin-auto-thumbnail.js

@@ -4,4 +4,4 @@
  * (c) 2017-2026 Harvey Zhao
  * Released under the MIT License.
  */
-!function(e,t){"object"===typeof exports&&"undefined"!==typeof module?module.exports=t():"function"==typeof define&&define.amd?(e.artplayerPluginAutoThumbnail=t(),define(function(){return e.artplayerPluginAutoThumbnail})):(e="undefined"!==typeof globalThis?globalThis:e||self).artplayerPluginAutoThumbnail=t()}(this,function(){"use strict";function e(e){let t,n=!1;for(const r of e)try{r()}catch(i){n||(n=!0,t=i)}return{failed:n,failure:t}}function t(t,n){const i="function"===typeof n.requestVideoFrameCallback&&"function"===typeof n.cancelVideoFrameCallback;let r;function o(){const t=r;r=void 0;const i=e([()=>{n.onloadeddata=null},()=>{n.onseeked=null},()=>{t&&null!==t.timer&&clearTimeout(t.timer)},()=>{t&&null!==t.frame&&n.cancelVideoFrameCallback(t.frame)}]);if(i.failed)throw i.failure}return t.own(o),(e,a)=>{if(o(),!t.active())return;const u={frame:null,timer:null,sought:!1,presented:!i,retries:0,sequence:0,started:!1};r=u;const d=()=>t.active()&&r===u,c=t.guard(()=>{d()&&u.sought&&u.presented&&(o(),t.active()&&a())}),l=()=>{u.sought=!1,(()=>{if(!i)return;const e=++u.sequence;u.presented=!1;const r=u.frame;if(u.frame=null,null!==r&&n.cancelVideoFrameCallback(r),!d())return;let o=!1;const a=n.requestVideoFrameCallback(t.guard(()=>{d()&&e===u.sequence&&!o&&(o=!0,u.frame=null,u.presented=!0,c())}));d()&&e===u.sequence&&!o?u.frame=a:n.cancelVideoFrameCallback(a)})(),d()&&(n.currentTime=e)},s=t.guard(()=>{d()&&!u.started&&(u.started=!0,n.onloadeddata=null,n.onseeked=t.guard(()=>{if(!d()||n.seeking)return;const t=n.currentTime;if(d())if(!Number.isFinite(t)||Math.abs(t-e)>.05){if(++u.retries>3)throw new Error("Auto-thumbnail seek did not reach the requested time");l()}else u.sought=!0,c()}),l())});if(u.timer=setTimeout(t.guard(()=>{if(d())throw new Error("Auto-thumbnail frame readiness timed out")}),3e4),!d())return void clearTimeout(u.timer);const f=!i||n.readyState>=2;d()&&(f?s():n.onloadeddata=s)}}function n(e,n){const i=function(e){const t=document.createElement("video");e.own(()=>t.remove()),e.own(()=>t.load()),e.own(()=>t.removeAttribute("src")),e.own(()=>t.pause());for(const n of["onloadedmetadata","onloadeddata","onseeked","onerror"])e.own(()=>{t[n]=null});return e.active()?(t.crossOrigin="anonymous",t.muted=!0,t.playsInline=!0,t.tabIndex=-1,t.setAttribute("aria-hidden","true"),t.style.cssText="position:fixed;left:0;top:0;visibility:hidden;pointer-events:none;display:block;width:auto;height:auto;max-width:none;max-height:none",document.documentElement.appendChild(t),e.active()||t.remove(),t):t}(e);if(!e.active())return;let r=null;const o=()=>{const e=r;r=null,null!==e&&clearTimeout(e)};e.own(o),i.onerror=e.guard(()=>{throw i.error||new Error("Auto-thumbnail media failed to load")}),i.onloadedmetadata=e.guard(()=>{o(),i.onloadedmetadata=null;const r=i.duration,a=i.videoHeight,u=i.videoWidth,{height:d,canvasWidth:c,canvasHeight:l}=function(e,t){if(!Number.isFinite(t.duration)||t.duration<=0||!Number.isFinite(t.videoWidth)||t.videoWidth<=0||!Number.isFinite(t.videoHeight)||t.videoHeight<=0)throw new TypeError("Auto-thumbnail requires finite media duration and dimensions");const n=Math.floor(e.width*t.videoHeight/t.videoWidth),i=Math.trunc(10*e.width),r=Math.trunc(n*Math.ceil(e.number/10));if(![n,i,r].every(e=>Number.isSafeInteger(e)&&e>0&&e<=4294967295))throw new RangeError("Auto-thumbnail canvas dimensions are invalid");return{height:n,canvasWidth:i,canvasHeight:r}}(n,{duration:r,videoHeight:a,videoWidth:u});if(!e.active())return;i.width=u,i.height=a,i.style.width=`${u}px`,i.style.height=`${a}px`;const s=document.createElement("canvas");if(e.own(()=>{s.height=0}),e.own(()=>{s.width=0}),!e.active())return;if(s.width=c,!e.active())return;if(s.height=l,!e.active())return;const f=s.getContext("2d");if(!f)throw new Error("Auto-thumbnail canvas context is unavailable");if(!e.active())return;const h=t(e,i),m=function(e,t){let n;function i(){const e=n;n=void 0,e&&null!==e.timer&&clearTimeout(e.timer)}return e.own(i),r=>{if(!e.active())return;if(n)throw new Error("Auto-thumbnail encoding is already pending");const o={timer:null};n=o;const a=()=>e.active()&&n===o;o.timer=setTimeout(e.guard(()=>{if(a())throw new Error("Auto-thumbnail encoding timed out")}),3e4),a()?t.toBlob(e.guard(t=>{a()&&(i(),e.active()&&r(t))}),"image/jpeg"):clearTimeout(o.timer)}}(e,s);let v=0;const b=e.guard(()=>{v>=n.number?e.dispose():h(r*v/n.number,e.guard(()=>{f.drawImage(i,v%10*n.width,Math.floor(v/10)*d,n.width,d),e.active()&&m(t=>{e.publish(t,{height:d,column:10,number:n.number,width:n.width,scale:n.scale}),e.active()&&(v+=1,b())})}))});b()}),e.active()&&(r=setTimeout(e.guard(()=>{if(null!==r)throw new Error("Auto-thumbnail metadata timed out")}),3e4),e.active()?i.src=n.url:o())}function i(t){return async i=>{const r=e=>console.warn("ArtPlayer auto-thumbnail failed:",e),o=function(t,n){let i,r,o=!1;const a=new Set;function u(e){void 0!==e&&a.delete(e)&&URL.revokeObjectURL(e)}function d(){const e=i;i=void 0,e?.dispose()}return{start:functioLine truncated
+!function(e,t){"object"===typeof exports&&"undefined"!==typeof module?module.exports=t():"function"==typeof define&&define.amd?(e.artplayerPluginAutoThumbnail=t(),define(function(){return e.artplayerPluginAutoThumbnail})):(e="undefined"!==typeof globalThis?globalThis:e||self).artplayerPluginAutoThumbnail=t()}(this,function(){"use strict";function e(e){let t,n=!1;for(const r of e)try{r()}catch(i){n||(n=!0,t=i)}return{failed:n,failure:t}}function t(t,n){const i="function"===typeof n.requestVideoFrameCallback&&"function"===typeof n.cancelVideoFrameCallback;let r;function o(){const t=r;r=void 0;const i=e([()=>{n.onloadeddata=null},()=>{n.onseeked=null},()=>{t&&null!==t.timer&&clearTimeout(t.timer)},()=>{t&&null!==t.frame&&n.cancelVideoFrameCallback(t.frame)}]);if(i.failed)throw i.failure}return t.own(o),(e,a)=>{if(o(),!t.active())return;const u={frame:null,timer:null,sought:!1,presented:!i,retries:0,sequence:0,started:!1};r=u;const d=()=>t.active()&&r===u,l=t.guard(()=>{d()&&u.sought&&u.presented&&(o(),t.active()&&a())}),c=()=>{u.sought=!1,(()=>{if(!i)return;const e=++u.sequence;u.presented=!1;const r=u.frame;if(u.frame=null,null!==r&&n.cancelVideoFrameCallback(r),!d())return;let o=!1;const a=n.requestVideoFrameCallback(t.guard(()=>{d()&&e===u.sequence&&!o&&(o=!0,u.frame=null,u.presented=!0,l())}));d()&&e===u.sequence&&!o?u.frame=a:n.cancelVideoFrameCallback(a)})(),d()&&(n.currentTime=e)},s=t.guard(()=>{d()&&!u.started&&(u.started=!0,n.onloadeddata=null,n.onseeked=t.guard(()=>{if(!d()||n.seeking)return;const t=n.currentTime;if(d())if(!Number.isFinite(t)||Math.abs(t-e)>.05){if(++u.retries>3)throw new Error("Auto-thumbnail seek did not reach the requested time");c()}else u.sought=!0,l()}),c())});if(u.timer=setTimeout(t.guard(()=>{if(d())throw new Error("Auto-thumbnail frame readiness timed out")}),3e4),!d())return void clearTimeout(u.timer);const f=!i||n.readyState>=2;d()&&(f?s():n.onloadeddata=s)}}function n(e,n){const i=function(e){const t=document.createElement("video");e.own(()=>t.remove()),e.own(()=>t.load()),e.own(()=>t.removeAttribute("src")),e.own(()=>t.pause());for(const n of["onloadedmetadata","onloadeddata","onseeked","onerror"])e.own(()=>{t[n]=null});return e.active()?(t.crossOrigin="anonymous",t.muted=!0,t.playsInline=!0,t.tabIndex=-1,t.setAttribute("aria-hidden","true"),t.style.cssText="position:fixed;left:0;top:0;visibility:hidden;pointer-events:none;display:block;width:auto;height:auto;max-width:none;max-height:none",document.documentElement.appendChild(t),e.active()||t.remove(),t):t}(e);if(!e.active())return;let r=null;const o=()=>{const e=r;r=null,null!==e&&clearTimeout(e)};e.own(o),i.onerror=e.guard(()=>{throw i.error||new Error("Auto-thumbnail media failed to load")}),i.onloadedmetadata=e.guard(()=>{o(),i.onloadedmetadata=null;const r=i.duration,a=i.videoHeight,u=i.videoWidth,{height:d,canvasWidth:l,canvasHeight:c}=function(e,t){if(!Number.isFinite(t.duration)||t.duration<=0||!Number.isFinite(t.videoWidth)||t.videoWidth<=0||!Number.isFinite(t.videoHeight)||t.videoHeight<=0)throw new TypeError("Auto-thumbnail requires finite media duration and dimensions");const n=Math.floor(e.width*t.videoHeight/t.videoWidth),i=Math.trunc(10*e.width),r=Math.trunc(n*Math.ceil(e.number/10));if(![n,i,r].every(e=>Number.isSafeInteger(e)&&e>0&&e<=4294967295))throw new RangeError("Auto-thumbnail canvas dimensions are invalid");return{height:n,canvasWidth:i,canvasHeight:r}}(n,{duration:r,videoHeight:a,videoWidth:u});if(!e.active())return;i.width=u,i.height=a,i.style.width=`${u}px`,i.style.height=`${a}px`;const s=document.createElement("canvas");if(e.own(()=>{s.height=0}),e.own(()=>{s.width=0}),!e.active())return;if(s.width=l,!e.active())return;if(s.height=c,!e.active())return;const f=s.getContext("2d");if(!f)throw new Error("Auto-thumbnail canvas context is unavailable");if(!e.active())return;const m=t(e,i),h=function(e,t){let n;function i(){const e=n;n=void 0,e&&null!==e.timer&&clearTimeout(e.timer)}return e.own(i),r=>{if(!e.active())return;if(n)throw new Error("Auto-thumbnail encoding is already pending");const o={timer:null};n=o;const a=()=>e.active()&&n===o;o.timer=setTimeout(e.guard(()=>{if(a())throw new Error("Auto-thumbnail encoding timed out")}),3e4),a()?t.toBlob(e.guard(t=>{a()&&(i(),e.active()&&r(t))}),"image/jpeg"):clearTimeout(o.timer)}}(e,s);let v=0;const b=e.guard(()=>{v>=n.number?e.dispose():m(r*v/n.number,e.guard(()=>{f.drawImage(i,v%10*n.width,Math.floor(v/10)*d,n.width,d),e.active()&&h(t=>{e.publish(t,{height:d,column:10,number:n.number,width:n.width,scale:n.scale}),e.active()&&(v+=1,b())})}))});b()}),e.active()&&(r=setTimeout(e.guard(()=>{if(null!==r)throw new Error("Auto-thumbnail metadata timed out")}),3e4),e.active()?i.src=n.url:o())}function i(t){return async i=>{if(i.isDestroy)return{name:"artplayerPluginAutoThumbnail"};const r=e=>console.warn("ArtPlayer auto-thumbnail failed:",e),o=function(t,n){let i,r,o=!1;const a=new Set;function u(e){void 0!==e&&a.delete(e)&&URL.revokeObjectURL(e)}functiLine truncated

packages/artplayer-plugin-auto-thumbnail/dist/artplayer-plugin-auto-thumbnail.legacy.js

@@ -4,4 +4,4 @@
  * (c) 2017-2026 Harvey Zhao
  * Released under the MIT License.
  */
-!function(e,t){"object"===typeof exports&&"undefined"!==typeof module?module.exports=t():"function"==typeof define&&define.amd?(e.artplayerPluginAutoThumbnail=t(),define(function(){return e.artplayerPluginAutoThumbnail})):(e="undefined"!==typeof globalThis?globalThis:e||self).artplayerPluginAutoThumbnail=t()}(this,function(){"use strict";var e=Object.defineProperty,t=Object.getOwnPropertySymbols,n=Object.prototype.hasOwnProperty,r=Object.prototype.propertyIsEnumerable,i=(t,n,r)=>n in t?e(t,n,{enumerable:!0,configurable:!0,writable:!0,value:r}):t[n]=r;function o(e){let t,n=!1;for(const i of e)try{i()}catch(r){n||(n=!0,t=r)}return{failed:n,failure:t}}function a(e,a){let u,l,d=!1;const c=new Set;function s(e){void 0!==e&&c.delete(e)&&URL.revokeObjectURL(e)}function f(){const e=u;u=void 0,null==e||e.dispose()}return{start:function(){if(d)return;const f=u,h=[];let m=!1;const v={active:()=>!d&&!m&&u===v,own(e){if(m){const t=o([e]);t.failed&&a(t.failure)}else h.push(e)},dispose(){if(m)return;m=!0,u===v&&(u=void 0);const e=o(h.splice(0).reverse());e.failed&&a(e.failure)},fail(e){v.active()&&(v.dispose(),a(e))},guard:e=>(...t)=>{if(v.active())try{return e(...t)}catch(n){v.fail(n)}},publish(u,d){if(!v.active())return;if(!u)throw new Error("Auto-thumbnail encoding returned no Blob");const f=URL.createObjectURL(u);if(c.add(f),!v.active())return void s(f);const h=l;l=f;try{e(((e,o)=>{for(var a in o||(o={}))n.call(o,a)&&i(e,a,o[a]);if(t)for(var a of t(o))r.call(o,a)&&i(e,a,o[a]);return e})({url:f},d))}catch(m){l===f&&(l=void 0!==h&&c.has(h)?h:void 0);const e=o([()=>s(f)]);throw e.failed&&a(e.failure),m}s(h)}};return u=v,null==f||f.dispose(),v},cancel:f,destroy:function(){if(d)return;d=!0;const e=o([f,...[...c].map(e=>()=>s(e))]);l=void 0,e.failed&&a(e.failure)},get closed(){return d}}}function u(e,t){const n="function"===typeof t.requestVideoFrameCallback&&"function"===typeof t.cancelVideoFrameCallback;let r;function i(){const e=r;r=void 0;const n=o([()=>{t.onloadeddata=null},()=>{t.onseeked=null},()=>{e&&null!==e.timer&&clearTimeout(e.timer)},()=>{e&&null!==e.frame&&t.cancelVideoFrameCallback(e.frame)}]);if(n.failed)throw n.failure}return e.own(i),(o,a)=>{if(i(),!e.active())return;const u={frame:null,timer:null,sought:!1,presented:!n,retries:0,sequence:0,started:!1};r=u;const l=()=>e.active()&&r===u,d=e.guard(()=>{l()&&u.sought&&u.presented&&(i(),e.active()&&a())}),c=()=>{u.sought=!1,(()=>{if(!n)return;const r=++u.sequence;u.presented=!1;const i=u.frame;if(u.frame=null,null!==i&&t.cancelVideoFrameCallback(i),!l())return;let o=!1;const a=t.requestVideoFrameCallback(e.guard(()=>{l()&&r===u.sequence&&!o&&(o=!0,u.frame=null,u.presented=!0,d())}));l()&&r===u.sequence&&!o?u.frame=a:t.cancelVideoFrameCallback(a)})(),l()&&(t.currentTime=o)},s=e.guard(()=>{l()&&!u.started&&(u.started=!0,t.onloadeddata=null,t.onseeked=e.guard(()=>{if(!l()||t.seeking)return;const e=t.currentTime;if(l())if(!Number.isFinite(e)||Math.abs(e-o)>.05){if(++u.retries>3)throw new Error("Auto-thumbnail seek did not reach the requested time");c()}else u.sought=!0,d()}),c())});if(u.timer=setTimeout(e.guard(()=>{if(l())throw new Error("Auto-thumbnail frame readiness timed out")}),3e4),!l())return void clearTimeout(u.timer);const f=!n||t.readyState>=2;l()&&(f?s():t.onloadeddata=s)}}function l(e,t){const n=function(e){const t=document.createElement("video");e.own(()=>t.remove()),e.own(()=>t.load()),e.own(()=>t.removeAttribute("src")),e.own(()=>t.pause());for(const n of["onloadedmetadata","onloadeddata","onseeked","onerror"])e.own(()=>{t[n]=null});return e.active()?(t.crossOrigin="anonymous",t.muted=!0,t.playsInline=!0,t.tabIndex=-1,t.setAttribute("aria-hidden","true"),t.style.cssText="position:fixed;left:0;top:0;visibility:hidden;pointer-events:none;display:block;width:auto;height:auto;max-width:none;max-height:none",document.documentElement.appendChild(t),e.active()||t.remove(),t):t}(e);if(!e.active())return;let r=null;const i=()=>{const e=r;r=null,null!==e&&clearTimeout(e)};e.own(i),n.onerror=e.guard(()=>{throw n.error||new Error("Auto-thumbnail media failed to load")}),n.onloadedmetadata=e.guard(()=>{i(),n.onloadedmetadata=null;const r=n.duration,o=n.videoHeight,a=n.videoWidth,{height:l,canvasWidth:d,canvasHeight:c}=function(e,t){if(!Number.isFinite(t.duration)||t.duration<=0||!Number.isFinite(t.videoWidth)||t.videoWidth<=0||!Number.isFinite(t.videoHeight)||t.videoHeight<=0)throw new TypeError("Auto-thumbnail requires finite media duration and dimensions");const n=Math.floor(e.width*t.videoHeight/t.videoWidth),r=Math.trunc(10*e.width),i=Math.trunc(n*Math.ceil(e.number/10));if(![n,r,i].every(e=>Number.isSafeInteger(e)&&e>0&&e<=4294967295))throw new RangeError("Auto-thumbnail canvas dimensions are invalid");return{height:n,canvasWidth:r,canvasHeight:i}}(t,{duration:r,videoHeight:o,videoWidth:a});if(!e.active())return;n.width=a,n.height=o,n.style.width=`${a}px`,n.style.height=`${o}px`;const s=document.createElement("canvas");if(e.own(()=>{s.height=0}),e.own(()=Line truncated
+!function(e,t){"object"===typeof exports&&"undefined"!==typeof module?module.exports=t():"function"==typeof define&&define.amd?(e.artplayerPluginAutoThumbnail=t(),define(function(){return e.artplayerPluginAutoThumbnail})):(e="undefined"!==typeof globalThis?globalThis:e||self).artplayerPluginAutoThumbnail=t()}(this,function(){"use strict";var e=Object.defineProperty,t=Object.getOwnPropertySymbols,n=Object.prototype.hasOwnProperty,r=Object.prototype.propertyIsEnumerable,i=(t,n,r)=>n in t?e(t,n,{enumerable:!0,configurable:!0,writable:!0,value:r}):t[n]=r;function o(e){let t,n=!1;for(const i of e)try{i()}catch(r){n||(n=!0,t=r)}return{failed:n,failure:t}}function a(e,a){let u,l,d=!1;const c=new Set;function s(e){void 0!==e&&c.delete(e)&&URL.revokeObjectURL(e)}function f(){const e=u;u=void 0,null==e||e.dispose()}return{start:function(){if(d)return;const f=u,m=[];let h=!1;const v={active:()=>!d&&!h&&u===v,own(e){if(h){const t=o([e]);t.failed&&a(t.failure)}else m.push(e)},dispose(){if(h)return;h=!0,u===v&&(u=void 0);const e=o(m.splice(0).reverse());e.failed&&a(e.failure)},fail(e){v.active()&&(v.dispose(),a(e))},guard:e=>(...t)=>{if(v.active())try{return e(...t)}catch(n){v.fail(n)}},publish(u,d){if(!v.active())return;if(!u)throw new Error("Auto-thumbnail encoding returned no Blob");const f=URL.createObjectURL(u);if(c.add(f),!v.active())return void s(f);const m=l;l=f;try{e(((e,o)=>{for(var a in o||(o={}))n.call(o,a)&&i(e,a,o[a]);if(t)for(var a of t(o))r.call(o,a)&&i(e,a,o[a]);return e})({url:f},d))}catch(h){l===f&&(l=void 0!==m&&c.has(m)?m:void 0);const e=o([()=>s(f)]);throw e.failed&&a(e.failure),h}s(m)}};return u=v,null==f||f.dispose(),v},cancel:f,destroy:function(){if(d)return;d=!0;const e=o([f,...[...c].map(e=>()=>s(e))]);l=void 0,e.failed&&a(e.failure)},get closed(){return d}}}function u(e,t){const n="function"===typeof t.requestVideoFrameCallback&&"function"===typeof t.cancelVideoFrameCallback;let r;function i(){const e=r;r=void 0;const n=o([()=>{t.onloadeddata=null},()=>{t.onseeked=null},()=>{e&&null!==e.timer&&clearTimeout(e.timer)},()=>{e&&null!==e.frame&&t.cancelVideoFrameCallback(e.frame)}]);if(n.failed)throw n.failure}return e.own(i),(o,a)=>{if(i(),!e.active())return;const u={frame:null,timer:null,sought:!1,presented:!n,retries:0,sequence:0,started:!1};r=u;const l=()=>e.active()&&r===u,d=e.guard(()=>{l()&&u.sought&&u.presented&&(i(),e.active()&&a())}),c=()=>{u.sought=!1,(()=>{if(!n)return;const r=++u.sequence;u.presented=!1;const i=u.frame;if(u.frame=null,null!==i&&t.cancelVideoFrameCallback(i),!l())return;let o=!1;const a=t.requestVideoFrameCallback(e.guard(()=>{l()&&r===u.sequence&&!o&&(o=!0,u.frame=null,u.presented=!0,d())}));l()&&r===u.sequence&&!o?u.frame=a:t.cancelVideoFrameCallback(a)})(),l()&&(t.currentTime=o)},s=e.guard(()=>{l()&&!u.started&&(u.started=!0,t.onloadeddata=null,t.onseeked=e.guard(()=>{if(!l()||t.seeking)return;const e=t.currentTime;if(l())if(!Number.isFinite(e)||Math.abs(e-o)>.05){if(++u.retries>3)throw new Error("Auto-thumbnail seek did not reach the requested time");c()}else u.sought=!0,d()}),c())});if(u.timer=setTimeout(e.guard(()=>{if(l())throw new Error("Auto-thumbnail frame readiness timed out")}),3e4),!l())return void clearTimeout(u.timer);const f=!n||t.readyState>=2;l()&&(f?s():t.onloadeddata=s)}}function l(e,t){const n=function(e){const t=document.createElement("video");e.own(()=>t.remove()),e.own(()=>t.load()),e.own(()=>t.removeAttribute("src")),e.own(()=>t.pause());for(const n of["onloadedmetadata","onloadeddata","onseeked","onerror"])e.own(()=>{t[n]=null});return e.active()?(t.crossOrigin="anonymous",t.muted=!0,t.playsInline=!0,t.tabIndex=-1,t.setAttribute("aria-hidden","true"),t.style.cssText="position:fixed;left:0;top:0;visibility:hidden;pointer-events:none;display:block;width:auto;height:auto;max-width:none;max-height:none",document.documentElement.appendChild(t),e.active()||t.remove(),t):t}(e);if(!e.active())return;let r=null;const i=()=>{const e=r;r=null,null!==e&&clearTimeout(e)};e.own(i),n.onerror=e.guard(()=>{throw n.error||new Error("Auto-thumbnail media failed to load")}),n.onloadedmetadata=e.guard(()=>{i(),n.onloadedmetadata=null;const r=n.duration,o=n.videoHeight,a=n.videoWidth,{height:l,canvasWidth:d,canvasHeight:c}=function(e,t){if(!Number.isFinite(t.duration)||t.duration<=0||!Number.isFinite(t.videoWidth)||t.videoWidth<=0||!Number.isFinite(t.videoHeight)||t.videoHeight<=0)throw new TypeError("Auto-thumbnail requires finite media duration and dimensions");const n=Math.floor(e.width*t.videoHeight/t.videoWidth),r=Math.trunc(10*e.width),i=Math.trunc(n*Math.ceil(e.number/10));if(![n,r,i].every(e=>Number.isSafeInteger(e)&&e>0&&e<=4294967295))throw new RangeError("Auto-thumbnail canvas dimensions are invalid");return{height:n,canvasWidth:r,canvasHeight:i}}(t,{duration:r,videoHeight:o,videoWidth:a});if(!e.active())return;n.width=a,n.height=o,n.style.width=`${a}px`,n.style.height=`${o}px`;const s=document.createElement("canvas");if(e.own(()=>{s.height=0}),e.own(()=Line truncated

packages/artplayer-plugin-auto-thumbnail/dist/artplayer-plugin-auto-thumbnail.mjs

@@ -402,6 +402,8 @@ function extract(job, config) {
 }
 function artplayerPluginAutoThumbnail(option) {
   return async (art) => {
+    if (art.isDestroy)
+      return { name: "artplayerPluginAutoThumbnail" };
     const report = (error) => console.warn("ArtPlayer auto-thumbnail failed:", error);
     const session = createSession((config) => {
       art.thumbnails = config;

packages/artplayer-plugin-auto-thumbnail/src/index.ts

@@ -6,6 +6,8 @@ import createSession, { cleanupAll } from './session'
 
 function artplayerPluginAutoThumbnail(option: ThumbnailOptions) {
   return async (art: ThumbnailHost): Promise<Result> => {
+    if (art.isDestroy)
+      return { name: 'artplayerPluginAutoThumbnail' }
     const report = (error: unknown) => console.warn('ArtPlayer auto-thumbnail failed:', error)
     const session = createSession((config) => {
       art.thumbnails = config

packages/artplayer-plugin-auto-thumbnail/src/types.ts

@@ -29,6 +29,7 @@ export interface ExtractionJob {
 }
 
 export interface ThumbnailHost {
+  isDestroy?: boolean
   option: { url: string }
   // A host may already hold a partial user configuration; generated sheets are complete.
   thumbnails: { url: string } & Partial<SheetConfig>

refactor/changes/2026-09-15-PKG-AUTO-THUMB-13-registration.md

@@ -0,0 +1,68 @@
+# PKG-AUTO-THUMB-13：已销毁宿主的迟到注册
+
+基线 `9ba3c82f99e6bad0e858f6c2e1d8624dfb725c8c`。
+
+## 问题与实现
+
+应用保留插件 registrar（例如异步加载模块后的回调），在播放器已经 destroy 后
+直接调用它，旧实现仍订阅 destroy、restart、video:loadedmetadata。旧 destroy
+事件不会再次自然发生，因此新订阅没有可到达的正常销毁通知；之后若投递迟到的
+元数据事件，还会创建隐藏 video。修复前两个实际核心的 Chromium 用例都记录
+三个新增订阅和一个隐藏原生 video；Node 两个对应回归也失败。
+
+入口在访问订阅或创建 session 之前读取公开 isDestroy，已经销毁时直接返回原有
+名称对象。函数仍为 async，返回 Promise，没有新增拒绝、公开方法或结果字段。
+内部 ThumbnailHost 的标志为可选，保留没有此字段的结构化旧宿主；false/缺省
+宿主仍可完成 JPEG 抽帧、发布和清理。没有修改核心 plugins.add 的已有拒绝策略，
+也不把本修复描述成允许该方法在销毁后继续工作。
+
+仅修改入口与内部宿主类型，资源生命周期仍由既有 session/extraction 模块负责，
+无需引入新抽象或依赖。API-05/06 的失效实例资源边界得到保护，API-09/11 的
+公开声明、default 别名和分发入口保持不变。包 README 与架构说明同步更新。
+
+## 测试、产物与工程入口
+
+Node 24.21.0、Yarn Classic 1.22.22、TypeScript 5.9.3，Windows。
+
+| 范围 | 结果 |
+| --- | --- |
+| 修复前四项 Node 回归 | 2 pass / 2 fail：残留三个订阅、访问不可用的销毁宿主成员 |
+| 修复前真实核心 Chromium | 0 pass / 2 fail：新旧核心均新增订阅和隐藏 video |
+| 完整 test:auto-thumbnail 源码/历史/类型集合 | 193 pass |
+| 重建 main / legacy 的 auto-thumbnail-* 单元文件 | 各 88 pass |
+| main 三引擎浏览器 | 42 pass / 0 skip / 0 retry |
+| legacy 三引擎浏览器 | 42 pass / 0 skip / 0 retry |
+| 包严格 TS、docs-tools TS、scoped lint | 通过 |
+| 浏览器运行入口测试 | 18 pass |
+| Yarn 严格工具链 | 通过 |
+
+每个产物的 42 项包括六项实际新旧核心迟到注册，另 36 项已有原生资源/像素测试
+使用受控插件宿主，验证元数据等待、抽帧/编码取消、成功 JPEG、别名和清理。
+没有把所有 42 项称为完整真实核心组合。浏览器版本为 Chromium153.0.8010.12、
+Firefox155.0、Windows WebKit26.6。新用例只观察订阅，不替换原生视频/抽帧方法。
+故意投递元数据后记录资源，最后补发 destroy 清理修复前复现，不依赖重复
+art.destroy() 自动清掉迟到资源。正常解码/编码仍由原生事件完成。
+
+WebKit 无帧回调的既有两项像素用例继续只验后面三格，首两格仍是诊断；
+AUTO-THUMB-PIXEL-01 不关闭，没有放宽原断言或新增跳过。
+
+`yarn build artplayer-plugin-auto-thumbnail` 重建 main、legacy、ESM 及 docs/compiled
+对应副本，未手改产物。test:unit 与 test:auto-thumbnail 加入新 Node 用例；
+source 自动收集新 browser 文件，installedTests 显式加入它，入口测试和类型通过。
+本轮实际浏览器使用重建 main/legacy，不声称执行了新的 tarball 安装测试。
+既有安装 map 因生产源码改变需要重新打包生成，不能继续当作当前候选证据。
+
+计划初次把未完成子任务追加到 doing 的03时被依赖校验拒绝，改为让 todo 的05
+同时依赖03及本任务，保留全部旧依赖。没有绕开校验或提前将子任务标完成。
+最终计划、风险、风险负例与提交审计必须通过。
+
+精确输入、失败/最终报告及文件哈希见
+[auto-thumbnail-registration-validation.json](../baselines/auto-thumbnail-registration-validation.json)。
+
+## 状态和回退
+
+关闭 AUTO-THUMB-REGISTRATION-01；PKG-AUTO-THUMB-03 的原生首帧问题、05 的设备/
+组合、06 的安装与发布仍未完成。新增本任务后完成数 212，进行中21，待办43，
+共276。没有修改包版本、Yarn 锁或依赖，没有推送、部署或发布。
+
+回退本独立提交可同时恢复入口、内部类型、测试、构建文件及维护记录。

refactor/plan.md

@@ -2,9 +2,9 @@
 
 > 由 tasks.json 生成。请修改数据后运行 `node refactor/scripts/plan.mjs --write`，不要手改本表。
 
-基线：`40fcda6a37d0049d42e49c1e64e70d4fd9ba5f7f`。总任务 275 项，范围 22 个包及工作区/示例。
+基线：`40fcda6a37d0049d42e49c1e64e70d4fd9ba5f7f`。总任务 276 项，范围 22 个包及工作区/示例。
 
-状态：todo 43 / doing 21 / blocked 0 / done 211 / deferred 0。风险 L/M/H 表示兼容风险，不表示工期。
+状态：todo 43 / doing 21 / blocked 0 / done 212 / deferred 0。风险 L/M/H 表示兼容风险，不表示工期。
 
 前置依赖是启动条件；验收是完成条件。任务可以继续拆分，但不能复用或悄悄删除旧 ID。
 
@@ -19,7 +19,7 @@
 | artplayer-plugin-ambilight | 1.1.0 | PKG-AMBILIGHT-01, PKG-AMBILIGHT-02, PKG-AMBILIGHT-03, PKG-AMBILIGHT-04, PKG-AMBILIGHT-PROXY-01, PKG-AMBILIGHT-05, PKG-AMBILIGHT-06, PKG-FACTORY-01 |
 | artplayer-plugin-asr | 2.1.0 | PKG-ASR-01, PKG-ASR-02, PKG-ASR-03, PKG-ASR-04, PKG-ASR-05, PKG-ASR-06, PKG-ASR-07, PKG-ASR-08, PKG-ASR-09, PKG-ASR-10 |
 | artplayer-plugin-audio-track | 1.1.0 | PKG-AUDIO-01, PKG-AUDIO-02, PKG-AUDIO-03, PKG-AUDIO-04, PKG-AUDIO-05, PKG-AUDIO-06, SITE-AUDIO-01 |
-| artplayer-plugin-auto-thumbnail | 1.1.0 | PKG-AUTO-THUMB-01, PKG-AUTO-THUMB-02, PKG-AUTO-THUMB-03, PKG-AUTO-THUMB-04, PKG-AUTO-THUMB-05, PKG-AUTO-THUMB-06, PKG-AUTO-THUMB-07, PKG-AUTO-THUMB-08, PKG-AUTO-THUMB-09, PKG-AUTO-THUMB-10, PKG-AUTO-THUMB-11, PKG-AUTO-THUMB-12 |
+| artplayer-plugin-auto-thumbnail | 1.1.0 | PKG-AUTO-THUMB-01, PKG-AUTO-THUMB-02, PKG-AUTO-THUMB-03, PKG-AUTO-THUMB-04, PKG-AUTO-THUMB-05, PKG-AUTO-THUMB-06, PKG-AUTO-THUMB-07, PKG-AUTO-THUMB-08, PKG-AUTO-THUMB-09, PKG-AUTO-THUMB-10, PKG-AUTO-THUMB-11, PKG-AUTO-THUMB-12, PKG-AUTO-THUMB-13 |
 | artplayer-plugin-chapter | 1.1.0 | PILOT-01, PKG-CHAPTER-01, PKG-CHAPTER-02, PKG-CHAPTER-03, PKG-CHAPTER-04, PKG-CHAPTER-05, PKG-CHAPTER-06, PKG-CHAPTER-HOVER-01 |
 | artplayer-plugin-chromecast | 1.1.0 | PKG-CAST-01, PKG-CAST-02, PKG-CAST-03, PKG-CAST-04, PKG-CAST-05, PKG-CAST-06 |
 | artplayer-plugin-danmuku | 5.3.0 | PKG-DANMUKU-01, PKG-DANMUKU-02, PKG-DANMUKU-03, PKG-DANMUKU-04, PKG-DANMUKU-05, PKG-DANMUKU-06, PKG-DANMUKU-07, PKG-DANMUKU-08, PKG-DANMUKU-09, SITE-DANMUKU-01, PKG-DANMUKU-10, PKG-DANMUKU-11, PKG-DANMUKU-12, PKG-DANMUKU-MASK-LOAD-01 |
@@ -180,7 +180,7 @@
 | PKG-AUTO-THUMB-02 | artplayer-plugin-auto-thumbnail<br>建立特有行为与错误测试 | PKG-AUTO-THUMB-01, ENG-03, ENG-05 | 抽帧边界、短视频、失败、连续来源和销毁中的抽帧 | 旧版本行为可重跑，成功/失败/切源/销毁有必要断言 | H | done |
 | PKG-AUTO-THUMB-03 | artplayer-plugin-auto-thumbnail<br>整理内部职责与资源 | PKG-AUTO-THUMB-02, CORE-09, CORE-19, PKG-AUTO-THUMB-07 | 隐藏 video、seek 队列、canvas 编码与 Blob URL 清理 | 结构变化和缺陷修复分开记录；原 API/事件/资源生命周期通过 | H | doing |
 | PKG-AUTO-THUMB-04 | artplayer-plugin-auto-thumbnail<br>迁移自有源码和公开类型 | PKG-AUTO-THUMB-02, CORE-09, CORE-19, PKG-AUTO-THUMB-07, PKG-AUTO-THUMB-12, ENG-04, ENG-06, CORE-07, PKG-AUTO-THUMB-08, PKG-AUTO-THUMB-09, PKG-AUTO-THUMB-10, PKG-AUTO-THUMB-11 | 抽帧结果和真实异步插件返回类型兼容 | 严格类型检查、旧消费样例通过；声明路径/导出和同步异步兼容 | H | done |
-| PKG-AUTO-THUMB-05 | artplayer-plugin-auto-thumbnail<br>验证新旧核心和组合 | PKG-AUTO-THUMB-04, CORE-22, PKG-AUTO-THUMB-12, PKG-AUTO-THUMB-03 | 旧核心/候选核心预览、多次加载无过期缩略图覆盖 | 最终核心与原支持范围核心分别通过；设备/SDK 缺证据不能标完成 | H | todo |
+| PKG-AUTO-THUMB-05 | artplayer-plugin-auto-thumbnail<br>验证新旧核心和组合 | PKG-AUTO-THUMB-04, CORE-22, PKG-AUTO-THUMB-12, PKG-AUTO-THUMB-03, PKG-AUTO-THUMB-13 | 旧核心/候选核心预览、多次加载无过期缩略图覆盖 | 最终核心与原支持范围核心分别通过；设备/SDK 缺证据不能标完成 | H | todo |
 | PKG-AUTO-THUMB-06 | artplayer-plugin-auto-thumbnail<br>验证分发并同步文档 | PKG-AUTO-THUMB-05, ENG-07 | auto.thumbnail.js、三种产物和内存/URL 证据 | tarball 入口/资源、类型、8082 demo 和 README 一致，有回退记录 | H | todo |
 | PKG-AUTO-THUMB-07 | artplayer-plugin-auto-thumbnail<br>终止抽帧时清空私有画布像素尺寸 | PKG-AUTO-THUMB-02, CORE-09, CORE-19 | 将私有 canvas 尺寸归入 job 清理；完成、取消、失败及分配重入均有回归，保留已编码 JPEG | 旧红新绿证明保留回调时画布归零，单项清理失败不阻断其他资源；原生取消和完成后 JPEG 仍可解码，原 API/时间公式/类型不变 | M | done |
 | PKG-AUTO-THUMB-08 | artplayer-plugin-auto-thumbnail<br>保留旧声明并提供准确异步类型入口 | PKG-AUTO-THUMB-02, ENG-04, ENG-06, CORE-07 | 保留实际 npm 1.1.0 根声明；新增同实现 /runtime 类型、编辑器声明及隔离安装消费者 | 原 Parameters/ReturnType/替代函数不变；准确 Promise 类型正反例、CJS/ESM 条件入口和声明解析通过；不把像素与设备缺口计为通过 | M | done |
@@ -188,6 +188,7 @@
 | PKG-AUTO-THUMB-10 | artplayer-plugin-auto-thumbnail<br>为渐进 JPEG 编码建立取消时限与独立资源归属 | PKG-AUTO-THUMB-02, PKG-AUTO-THUMB-07 | 拆分私有 canvas 编码模块，一次一帧的30秒编码时限，完成/失败/切源/销毁取消；迟到和重复回调无副作用 | 受控回调未返回的旧红新绿、正常JPEG和前一预览保持、同步重入/清理失败有回归；真实三浏览器编码/取消通过，公开时间公式与入口不变，首帧风险独立保留 | M | done |
 | PKG-AUTO-THUMB-11 | artplayer-plugin-auto-thumbnail<br>保证抽帧事件属性清理异常不截断其他资源释放 | PKG-AUTO-THUMB-02, PKG-AUTO-THUMB-07, PKG-AUTO-THUMB-10 | 独立清除事件属性、抽帧时限和原生帧回调；首个异常保留，过期回调失效，替换任务可继续 | 八个故障注入用例旧红新绿，实际main/legacy抽帧与三浏览器生命周期回归通过；文档和构建同步，首帧及整体资源验收不冒充完成 | M | done |
 | PKG-AUTO-THUMB-12 | artplayer-plugin-auto-thumbnail<br>终止隐藏视频元数据永久等待并释放资源 | PKG-AUTO-THUMB-02, CORE-09, CORE-19 | 元数据独立 30 秒期限、迟到回调失效、取消和错误清理、保留前一张可用预览；源码/重建产物及浏览器证据 | 旧红新绿、正常加载与阶段交接通过；实际挂起 HTTP 下销毁/切源/超时清理通过，不改变公开注册或帧时间公式，不关闭既有首帧风险 | M | done |
+| PKG-AUTO-THUMB-13 | artplayer-plugin-auto-thumbnail<br>阻止已销毁实例的迟到插件注册重新持有资源 | PKG-AUTO-THUMB-02, PKG-AUTO-THUMB-04 | 入口检查公共销毁状态、保持异步名称结果；正常及无销毁标志的旧宿主兼容，源码/产物/真实核心回归 | 旧红新绿证明迟到注册零订阅且后续元数据不能创建隐藏视频；正常JPEG生成和清理不变，公开类型/入口不改，首帧问题保留 | M | done |
 
 ## 5 包迁移：artplayer-plugin-vtt-thumbnail
 
@@ -726,3 +727,4 @@
 - CI-NPM-01: [记录](changes/2026-09-15-CI-NPM-01-bundle.md) [记录](baselines/npm-bundle-validation.json)
 - SITE-AUDIO-01: [记录](changes/2026-09-15-SITE-AUDIO-01-guides.md) [记录](baselines/audio-docs-validation.json)
 - SITE-VTT-01: [记录](changes/2026-09-15-SITE-VTT-01-guides.md) [记录](baselines/vtt-docs-validation.json)
+- PKG-AUTO-THUMB-13: [记录](changes/2026-09-15-PKG-AUTO-THUMB-13-registration.md) [记录](baselines/auto-thumbnail-registration-validation.json)

refactor/progress.md

@@ -1,5 +1,19 @@
 # 进度与证据
 
+## PKG-AUTO-THUMB-13 阻止销毁后迟到注册
+
+修复保留registrar在宿主销毁后仍新增三个监听器、迟到元数据创建隐藏视频的问题。
+入口检查公开isDestroy，保持Promise/name结果；内部标志可选，不影响旧结构宿主。
+旧Node两项失败，真实新旧核心Chromium两项失败；修复后源码193通过，main/legacy
+各88单元、各42三引擎浏览器通过。类型/lint/18入口测试通过，产物正常重建。
+
+AUTO-THUMB-REGISTRATION-01关闭；原首帧像素问题及03/05/06仍未完成。新用例进入
+Node脚本和installed名单，但未冒充新tarball安装验证，旧安装map需重新生成。
+见[记录](changes/2026-09-15-PKG-AUTO-THUMB-13-registration.md)和[证据](baselines/auto-thumbnail-registration-validation.json)。
+
+212 done、21 doing、43 todo，共276；无依赖/版本变更，无推送、部署或发布。
+
+
 ## SITE-VTT-01 缩略图双语指南与像素验证
 
 新增中英文指南与本地侧栏，覆盖索引格式、相对路径、整秒包含边界、异步注册、

refactor/risk-table.md

@@ -286,3 +286,4 @@
 | HLS-EXAMPLE-01 | resolved / 已复现 | HLS示例换源累积销毁监听器且原生回退仍安装SDK控制插件 | SITE-HLS-01, EX-03 |
 | DASH-EXAMPLE-01 | resolved / 已复现 | DASH示例重复销毁SDK、无MSE仍注册插件且空语言回调抛错 | SITE-DASH-01, EX-03 |
 | CI-BROWSER-MODE-01 | resolved / 已复现 | Installed browser validation can inherit rendering substitutions and direct config loading bypasses launcher diagnostic policy | CI-01 |
+| AUTO-THUMB-REGISTRATION-01 | resolved / 已复现 | Delayed direct factory installation on a destroyed host retains subscriptions and can restart hidden decoding | PKG-AUTO-THUMB-13 |

refactor/risks.json

@@ -6733,6 +6733,27 @@
         "refactor/baselines/ci-rendering-policy-validation.json"
       ],
       "resolutionRationale": "Eleven new regression failures against the old implementation become passing; final eighteen entry tests and seventy-seven CI tests pass. Fresh twenty-package preparation and four actual installed Chromium lifecycle cases verify the normal path. Scope excludes future unreviewed flags and full CI acceptance."
+    },
+    {
+      "id": "AUTO-THUMB-REGISTRATION-01",
+      "title": "Delayed direct factory installation on a destroyed host retains subscriptions and can restart hidden decoding",
+      "confirmation": "reproduced",
+      "status": "resolved",
+      "owners": [
+        "PKG-AUTO-THUMB-13"
+      ],
+      "evidence": [
+        "test/auto-thumbnail-registration.test.js",
+        "test/browser/auto-thumbnail-registration.spec.js",
+        "refactor/changes/2026-09-15-PKG-AUTO-THUMB-13-registration.md",
+        "refactor/baselines/auto-thumbnail-registration-validation.json"
+      ],
+      "compatibleResolution": "Return the existing asynchronous name result before touching a destroyed host; retain live and structurally compatible hosts without isDestroy.",
+      "closureCriteria": "Prechange source and real-core browser failures plus fixed source, rebuilt main/legacy and normal extraction/type regressions; no change to full pixel/device gates.",
+      "resolutionEvidence": [
+        "refactor/baselines/auto-thumbnail-registration-validation.json"
+      ],
+      "resolutionRationale": "Two prechange Node failures and both real-core Chromium failures reproduce retained subscriptions and native video creation. Source193, main/legacy88 each and three-engine42 each pass after the entry guard; live/absent-flag hosts retain successful generation. Public types and first-frame/device gates remain unchanged."
     }
   ]
 }

refactor/tasks.json

@@ -1888,7 +1888,8 @@
         "PKG-AUTO-THUMB-04",
         "CORE-22",
         "PKG-AUTO-THUMB-12",
-        "PKG-AUTO-THUMB-03"
+        "PKG-AUTO-THUMB-03",
+        "PKG-AUTO-THUMB-13"
       ],
       "status": "todo",
       "risk": "H",
@@ -5926,6 +5927,26 @@
         "changes/2026-09-15-SITE-VTT-01-guides.md",
         "baselines/vtt-docs-validation.json"
       ]
+    },
+    {
+      "id": "PKG-AUTO-THUMB-13",
+      "phase": "5 包迁移：artplayer-plugin-auto-thumbnail",
+      "title": "阻止已销毁实例的迟到插件注册重新持有资源",
+      "scope": [
+        "artplayer-plugin-auto-thumbnail"
+      ],
+      "dependsOn": [
+        "PKG-AUTO-THUMB-02",
+        "PKG-AUTO-THUMB-04"
+      ],
+      "status": "done",
+      "risk": "M",
+      "deliverable": "入口检查公共销毁状态、保持异步名称结果；正常及无销毁标志的旧宿主兼容，源码/产物/真实核心回归",
+      "acceptance": "旧红新绿证明迟到注册零订阅且后续元数据不能创建隐藏视频；正常JPEG生成和清理不变，公开类型/入口不改，首帧问题保留",
+      "evidence": [
+        "changes/2026-09-15-PKG-AUTO-THUMB-13-registration.md",
+        "baselines/auto-thumbnail-registration-validation.json"
+      ]
     }
   ]
 }

scripts/browser-validation/scope.ts

@@ -35,6 +35,7 @@ export const installedTests = [
   'dash-sdk.spec.js',
   'auto-thumbnail.spec.js',
   'auto-thumbnail-lifecycle.spec.js',
+  'auto-thumbnail-registration.spec.js',
   'auto-thumbnail-pixels.spec.js',
   'asr-audio.spec.js',
   'asr-playback.spec.js',

test/auto-thumbnail-registration.test.js

@@ -0,0 +1,50 @@
+import assert from 'node:assert/strict'
+// eslint-disable-next-line test/no-import-node-test -- Verify late asynchronous installation ownership.
+import test from 'node:test'
+import { autoThumbnailCandidate, autoThumbnailEnvironment } from './helpers/auto-thumbnail.js'
+
+const implementation = await autoThumbnailCandidate()
+
+for (const mode of ['retained-host', 'unavailable-host-members']) {
+  test(`Auto-thumbnail registration after destroy is inert: ${mode}`, async () => {
+    const env = autoThumbnailEnvironment(implementation)
+    env.art.isDestroy = true
+    if (mode === 'unavailable-host-members') {
+      for (const key of ['on', 'off', 'option']) {
+        Object.defineProperty(env.art, key, { get() {
+          throw new Error(`Destroyed host ${key} must not be read`)
+        } })
+      }
+    }
+    const pending = env.factory({ width: 80, number: 1 })(env.art)
+    assert.equal(typeof pending.then, 'function', 'Late registration retains the asynchronous public shape')
+    assert.deepEqual({ ...await pending }, { name: 'artplayerPluginAutoThumbnail' })
+    assert.equal([...env.listeners.values()].reduce((count, set) => count + set.size, 0), 0)
+    env.art.emit('video:loadedmetadata')
+    assert.equal(env.videos.length, 0)
+    assert.equal(env.canvases.length, 0)
+    assert.equal(env.timers.size, 0)
+    assert.equal(env.updates.length, 0)
+    assert.equal(env.urls.size, 0)
+  })
+}
+
+for (const marker of [false, undefined]) {
+  test(`Auto-thumbnail live registration remains compatible with isDestroy=${marker}`, async () => {
+    const env = autoThumbnailEnvironment(implementation)
+    if (marker !== undefined)
+      env.art.isDestroy = marker
+    await env.factory({ width: 80, number: 1 })(env.art)
+    env.art.emit('video:loadedmetadata')
+    assert.equal(env.videos.length, 1)
+    env.metadata()
+    env.seeked()
+    env.finish()
+    assert.equal(env.updates.length, 1)
+    assert.equal(env.urls.size, 1)
+    env.art.emit('destroy')
+    assert.equal(env.urls.size, 0)
+    assert.equal(env.timers.size, 0)
+    assert.equal(env.attached.size, 0)
+  })
+}

test/browser/README.md

@@ -529,6 +529,14 @@ The first immediate-pixel WebKit failure remains in the refactor evidence.
 This is native desktop media playback, not physical audibility or full devices.
 `document-site.spec.js` also checks generated guide links and Run Code parameters.
 
+## Auto-thumbnail delayed registration
+
+Auto-thumbnail's `auto-thumbnail-registration.spec.js` separately checks direct
+registrars delivered after real core destruction. It keeps the Promise/name
+contract, records zero subscriptions and verifies a late metadata event cannot
+allocate a hidden native video. It uses the source/artifact/installed resolver;
+this boundary test does not replace successful decoding or first-frame tests.
+
 ## VTT Thumbnail documentation examples
 
 yarn test:browser document-vtt.spec.js document-site.spec.js --workers=1 validates both generated guides and their Run Code destinations after yarn build:docs. The guide test requires the original demo verbatim, preserves the original demo video and substitutes local VTT/SVG resources, and inspects actual preview screenshot pixels with pngjs. It covers red/blue crops from real mouse hover, inclusive endpoint selection via public setBar with a MouseEvent, a gap, destroy and a late event on both cores. It loads local dist explicitly and records its hash; this does not replace the verified installed-artifact suite, physical touch tests or full playback acceptance.

test/browser/auto-thumbnail-registration.spec.js

@@ -0,0 +1,39 @@
+import { hash } from '../../refactor/scripts/releases.mjs'
+import { autoThumbnailCandidate } from '../helpers/auto-thumbnail.js'
+import { expect, test } from './fixtures.js'
+
+const implementation = await autoThumbnailCandidate()
+for (const core of ['published', 'candidate']) {
+  test(`Auto-thumbnail delayed factory installation stays inert after ${core} core destruction`, async ({ page }, testInfo) => {
+    await page.goto(`/test/player.html?core=${core}`)
+    await page.addScriptTag({ content: implementation.code })
+    const evidence = await page.evaluate(async () => {
+      window.createPlayer('/test/pattern.mp4')
+      const art = window.art
+      const install = window.artplayerPluginAutoThumbnail({ width: 80, number: 1 })
+      art.destroy()
+      const subscriptions = []
+      const on = art.on
+      art.on = function (name, callback) {
+        subscriptions.push(name)
+        return on.call(this, name, callback)
+      }
+      try {
+        const pending = install(art)
+        const asynchronous = typeof pending.then === 'function'
+        const result = await pending
+        art.emit('video:loadedmetadata')
+        const videos = document.querySelectorAll('video').length
+        const canvases = document.querySelectorAll('canvas').length
+        // Clean up the deliberate regression probe even when the old bundle leaks.
+        art.emit('destroy')
+        return { destroyed: art.isDestroy, asynchronous, result, subscriptions, videos, canvases }
+      }
+      finally {
+        art.on = on
+      }
+    })
+    await testInfo.attach('auto-thumbnail-late-registration', { contentType: 'application/json', body: JSON.stringify({ core, sha256: hash(implementation.code), provenance: implementation.provenance, ...evidence }) })
+    expect(evidence).toEqual({ destroyed: true, asynchronous: true, result: { name: 'artplayerPluginAutoThumbnail' }, subscriptions: [], videos: 0, canvases: 0 })
+  })
+}