M25: WS FX realtime sang Web Worker + MessageChannel worker->worklet (het underrun u1/u10 cold-start + stall main)
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@@ -378,7 +378,14 @@ try{if(fxRt.node&&fxRt.node.port)fxRt.node.port.postMessage({type:'latency',samp
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if(fxRt.fadedIn)fxRtApplyPdc();}else if(d&&d.cmd==='flush_done'){// V24: engine da flush ring xong — mo lai nhan output + bao worklet
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// (worklet drop block cho ack nay; mat ack -> fallback timer nha).
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fxRt.flushing=false;if(fxRt.flushTimer){clearTimeout(fxRt.flushTimer);fxRt.flushTimer=null;}if(fxRt.node)fxRt.node.port.postMessage({type:'flush_done'});}}catch(e){}return;}if(!(ev.data instanceof ArrayBuffer)||!fxRt.node)return;if(fxRt.flushing)return;// V24: output stale trong luc flush — drop
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const f=new Float32Array(ev.data);const half=f.length/2;let l=fxRt.outL,r=fxRt.outR;if(!l||l.length!==half){l=fxRt.outL=new Float32Array(half);r=fxRt.outR=new Float32Array(half);}for(let i=0;i<half;i++){l[i]=f[i*2];r[i]=f[i*2+1];}fxRt.node.port.postMessage({type:'out',l,r});}async function fxRtStart(){// V21: mọi play/chain-change gọi đây — hủy idle timer của lần stop trước
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const f=new Float32Array(ev.data);const half=f.length/2;let l=fxRt.outL,r=fxRt.outR;if(!l||l.length!==half){l=fxRt.outL=new Float32Array(half);r=fxRt.outR=new Float32Array(half);}for(let i=0;i<half;i++){l[i]=f[i*2];r[i]=f[i*2+1];}fxRt.node.port.postMessage({type:'out',l,r});}// M25: shim giu nguyen API WebSocket cu (readyState/send/onopen/onmessage/
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// onclose/onerror) nhung WS + binary deinterleave chay tren Web Worker; output
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// di THANG worker->worklet qua MessageChannel (directPort). ~20 call-site
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// fxRt.ws giu nguyen - khong sua. Main chi nhan text (latency/flush_done).
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function fxRtWsConnect(wsUrl,directPort){const _fireClose=sh=>{if(sh._closed)return;sh._closed=true;sh.readyState=3;// CLOSED
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try{if(sh._worker)sh._worker.terminate();}catch(e){}if(sh.onclose){try{sh.onclose();}catch(e){}}};const shim={readyState:0,onopen:null,onmessage:null,onclose:null,onerror:null,_worker:null,_closed:false,send(data){if(this._closed||!this._worker||this.readyState!==1)return;try{if(typeof data==='string')this._worker.postMessage({kind:'send',text:data});// KHONG transfer list - fxRtChunks c.buffer reused (ws.send cu khong neuter)
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else if(data instanceof ArrayBuffer)this._worker.postMessage({kind:'send',buf:data});}catch(e){}},close(){_fireClose(this);}};try{shim._worker=new Worker(`${API_BASE_URL}/static/js/fx-rt-worker.js?v=202608291749`);}catch(e){throw e;}// giong ws constructor that -> caller catch cu giu nguyen
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shim._worker.onmessage=ev=>{const d=ev.data;if(!d||shim._closed)return;if(d.kind==='open'){shim.readyState=1;if(shim.onopen){try{shim.onopen();}catch(e){}}return;}if(d.kind==='close'){_fireClose(shim);return;}if(d.kind==='text'){if(shim.onmessage){try{shim.onmessage({data:d.text});}catch(e){}}}};shim._worker.onerror=()=>_fireClose(shim);try{shim._worker.postMessage({kind:'init',wsUrl,port:directPort||undefined},directPort?[directPort]:[]);}catch(e){}return shim;}async function fxRtStart(){// V21: mọi play/chain-change gọi đây — hủy idle timer của lần stop trước
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// (không để session warm bị teardown giữa lúc đang chơi).
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if(fxRtWarmIdleTimer){clearTimeout(fxRtWarmIdleTimer);fxRtWarmIdleTimer=null;}const chain=fxRtChain();const ck=fxRtChainKey(chain);const ckStruct=fxRtChainStructKey(chain);if(fxRt.active){// masterBus bị rebuild (recovery/export) → node thuộc graph cũ → restart.
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if(!fxRt.node||fxRt.node.context!==getAudioContext())fxRtStop(true);// Chain ĐỔI CẤU TRÚC (insert/remove/bypass/reorder/type) — KHÔNG restart
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@@ -425,10 +432,14 @@ if(fxRt.warm)fxRtStop(true);// Token chống race bypass: user bấm PWR/Bypass
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// node → bypass vô hiệu. Mỗi fxRtStop() bump startToken → mọi checkpoint
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// dưới đây thấy mismatch → hủy session vừa tạo, không nối node.
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const token=++fxRt.startToken;fxRt.starting=true;const ctx=getAudioContext();if(!ctx||!ctx.audioWorklet||!masterBus||!masterBus.output||!masterBus.analyser||!masterBus.masterFxGain||!masterBus.masterFxDryGain)return;const chainPayload=chain.map(s=>s.type==='vst3'?{type:'vst3',path:s.path,name:s.name||s.path,preset_b64:s.preset_b64||'',bypass:!!s.bypass||!!(window.currentMasteringSettings||{}).vstBypass}:{type:'builtin',id:s.type,params:s.params&&Object.keys(s.params).length?s.params:{},bypass:!!s.bypass});let st;try{st=await window.SonicAPI.fxRealtimeStart({fx_chain:chainPayload,sample_rate:ctx.sampleRate||44100});}catch(e){console.warn('[FX RT] start fail:',e);showToast('Không khởi động VST FX realtime: '+(e.message||e),'warning');fxRt.starting=false;return;}if(token!==fxRt.startToken){// Bypass/stop giữa lúc engine đang load chain — hủy session vừa tạo.
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console.warn('[FX RT] start cancelled mid-flight — session stopped');try{window.SonicAPI.fxRealtimeStop({session_id:st.session_id}).catch(()=>{});}catch(e2){}fxRt.starting=false;return;}fxRt.sessionId=st.session_id;fxRtGuiPushShm();try{await ctx.audioWorklet.addModule(`${API_BASE_URL}/static/js/sf-fx-realtime.js?v=202609071125`);if(token!==fxRt.startToken){fxRt.starting=false;return;}fxRt.node=new AudioWorkletNode(ctx,'sf-fx-realtime',{numberOfInputs:1,numberOfOutputs:1,outputChannelCount:[2]});const u=new URL(API_BASE_URL);const wsProto=u.protocol==='https:'?'wss://':'ws://';// WS to 'localhost' bi tre ~300ms: Chromium thu ::1 truoc (Windows khong
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console.warn('[FX RT] start cancelled mid-flight — session stopped');try{window.SonicAPI.fxRealtimeStop({session_id:st.session_id}).catch(()=>{});}catch(e2){}fxRt.starting=false;return;}fxRt.sessionId=st.session_id;fxRtGuiPushShm();try{await ctx.audioWorklet.addModule(`${API_BASE_URL}/static/js/sf-fx-realtime.js?v=202608291749`);if(token!==fxRt.startToken){fxRt.starting=false;return;}fxRt.node=new AudioWorkletNode(ctx,'sf-fx-realtime',{numberOfInputs:1,numberOfOutputs:1,outputChannelCount:[2]});const u=new URL(API_BASE_URL);const wsProto=u.protocol==='https:'?'wss://':'ws://';// WS to 'localhost' bi tre ~300ms: Chromium thu ::1 truoc (Windows khong
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// co listener IPv6 -> SYN hang ~2s) roi moi fallback 127.0.0.1. Dung
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// thang 127.0.0.1 (loopback) -> WS open ~5ms. Server chap nhan loopback.
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const wsHost=u.hostname==='localhost'||u.hostname==='::1'?'127.0.0.1'+(u.port?':'+u.port:''):u.host;const tok=localStorage.getItem('sonic_token')||'';const wsUrl=`${wsProto}${wsHost}${st.ws_url}${tok?'?token='+encodeURIComponent(tok):''}`;const ws=new WebSocket(wsUrl);fxRt.ws=ws;ws.binaryType='arraybuffer';ws.onopen=()=>{if(token!==fxRt.startToken){try{ws.close();}catch(e){}fxRt.starting=false;return;}fxRt.active=true;fxRt.flushing=false;fxRt.starting=false;fxRt.inQueue=[];// bỏ audio stale sản xuất trước khi WS open (~4s load VST) — hết lag khởi đầu
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const wsHost=u.hostname==='localhost'||u.hostname==='::1'?'127.0.0.1'+(u.port?':'+u.port:''):u.host;const tok=localStorage.getItem('sonic_token')||'';const wsUrl=`${wsProto}${wsHost}${st.ws_url}${tok?'?token='+encodeURIComponent(tok):''}`;// M25: WS chay tren Web Worker - binary output/input di THANG
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// worker<->worklet qua MessageChannel (directPort). Main-thread stall (rAF/
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// React/render luc cold start) khong con tre frame -> het underrun u1/u10.
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// Text (latency/flush_done) van forward main nhu cu.
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const _chan=new MessageChannel();try{fxRt.node.port.postMessage({type:'__direct',port:_chan.port2},[_chan.port2]);}catch(e){}const ws=fxRtWsConnect(wsUrl,_chan.port1);fxRt.ws=ws;ws.onopen=()=>{if(token!==fxRt.startToken){try{ws.close();}catch(e){}fxRt.starting=false;return;}fxRt.active=true;fxRt.flushing=false;fxRt.starting=false;fxRt.inQueue=[];// bỏ audio stale sản xuất trước khi WS open (~4s load VST) — hết lag khởi đầu
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try{fxRtPushAllParams();}catch(e){}};ws.onmessage=fxRtWsOnMessage;ws.onclose=()=>fxRtStop(true);ws.onerror=()=>{try{ws.close();}catch(e){}};// Worklet gom 4 block (1024 mẫu) vào 1 frame → tách 4 WS frame 512 floats
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// ở đây. Bridge VST3 nhận input dồn → take=4 → batch 1 call process 1024
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// mẫu (~3.5-4.75ms/block) → đủ 187.5/s (take=1: 5.5ms > budget 5.33ms →
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@@ -505,7 +516,9 @@ fxRt.active=false;fxRt.warm=true;fxRt.latencyTotal=0;}// C: warm-ensure — tạ
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async function fxRtWarmEnsure(chain){if(!chain||!chain.length)return null;if(fxRt.starting)return null;if(fxRt.active&&fxRt.sessionId)return null;const ctx=getAudioContext();if(!ctx||!ctx.audioWorklet)return null;const token=++fxRt.startToken;fxRt.starting=true;const chainPayload=chain.map(s=>s.type==='vst3'?{type:'vst3',path:s.path,name:s.name||s.path,preset_b64:s.preset_b64||'',bypass:!!s.bypass||!!(window.currentMasteringSettings||{}).vstBypass}:{type:'builtin',id:s.type,params:s.params&&Object.keys(s.params).length?s.params:{},bypass:!!s.bypass});let st;try{st=await window.SonicAPI.fxRealtimeStart({fx_chain:chainPayload,sample_rate:ctx.sampleRate||44100});}catch(e){console.warn('[FX RT] warm-ensure start fail:',e);fxRt.starting=false;return null;}if(token!==fxRt.startToken){// stop/cold-start đã bump token giữa lúc chờ -> dọn session orphan này.
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try{window.SonicAPI.fxRealtimeStop({session_id:st.session_id}).catch(()=>{});}catch(e2){}return null;// không reset starting — người bump (fxRtStop/fxRtStart) sở hữu nó
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}fxRt.sessionId=st.session_id;fxRtGuiPushShm();const u=new URL(API_BASE_URL);const wsProto=u.protocol==='https:'?'wss://':'ws://';// WS to 'localhost' bi tre ~300ms (xem fxRtStart) — dùng 127.0.0.1 loopback.
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const wsHost=u.hostname==='localhost'||u.hostname==='::1'?'127.0.0.1'+(u.port?':'+u.port:''):u.host;const tok=localStorage.getItem('sonic_token')||'';const wsUrl=`${wsProto}${wsHost}${st.ws_url}${tok?'?token='+encodeURIComponent(tok):''}`;let ws;try{ws=new WebSocket(wsUrl);}catch(e){try{window.SonicAPI.fxRealtimeStop({session_id:st.session_id}).catch(()=>{});}catch(e2){}fxRt.sessionId=null;fxRtGuiPushShm();fxRt.starting=false;return null;}fxRt.ws=ws;ws.binaryType='arraybuffer';ws.onopen=()=>{if(token!==fxRt.startToken){// Bị thay bằng session mới hơn — dọn session mình vừa tạo (nếu vẫn là
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const wsHost=u.hostname==='localhost'||u.hostname==='::1'?'127.0.0.1'+(u.port?':'+u.port:''):u.host;const tok=localStorage.getItem('sonic_token')||'';const wsUrl=`${wsProto}${wsHost}${st.ws_url}${tok?'?token='+encodeURIComponent(tok):''}`;// M25: WS chay tren Web Worker - warm chua co node (khong directPort);
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// worker van giu WS, binary drop trong worker nhu cu main drop (!fxRt.node).
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let ws;try{ws=fxRtWsConnect(wsUrl,null);}catch(e){try{window.SonicAPI.fxRealtimeStop({session_id:st.session_id}).catch(()=>{});}catch(e2){}fxRt.sessionId=null;fxRtGuiPushShm();fxRt.starting=false;return null;}fxRt.ws=ws;ws.onopen=()=>{if(token!==fxRt.startToken){// Bị thay bằng session mới hơn — dọn session mình vừa tạo (nếu vẫn là
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// session hiện tại) + đóng ws.
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if(fxRt.sessionId===st.session_id){fxRt.sessionId=null;try{window.SonicAPI.fxRealtimeStop({session_id:st.session_id}).catch(()=>{});}catch(e){}fxRtGuiPushShm();}try{ws.close();}catch(e){}return;}fxRt.starting=false;fxRt.warm=true;fxRt.chainKey=fxRtChainKey(chain);fxRt.chainStructKey=fxRtChainStructKey(chain);};ws.onmessage=fxRtWsOnMessage;ws.onclose=()=>{// Chỉ teardown khi ws này vẫn là session hiện tại (guard session mới hơn).
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if(token===fxRt.startToken&&fxRt.sessionId===st.session_id)fxRtStop(true);};ws.onerror=()=>{try{ws.close();}catch(e){}};return st.session_id;}// C: bảo đảm session realtime sống cho GUI master native của path: PWR ON đã
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@@ -2224,7 +2237,7 @@ fxRtTrackReconcile(trackId,node,track);}catch(e){console.warn('rebuildTrackFxGra
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// Cần activeTrackNodesRef/isPlayingRef. Session giống master (fxRtStart):
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// fetch start → AudioWorkletNode 'sf-fx-realtime' → WS; WS open → splice
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// worklet vào chain hiện tại (đọc mods MỚI NHẤT — an toàn với rebuild).
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const fxRtTrackStart=async(trackId,track,path)=>{const key=trackId+':'+path;const chain=fxRtTrackChain(track);if(!chain.length)return;if(fxRtTracks[key]){if(!fxRtTracks[key].node||fxRtTracks[key].node.context!==getAudioContext())fxRtTrackStop(trackId,path,true);else return;}const ctx=getAudioContext();if(!ctx||!ctx.audioWorklet)return;const chainPayload=chain.map(s=>s.type==='vst3'?{type:'vst3',path:s.path,name:s.name||s.path,preset_b64:s.preset_b64||'',bypass:!!s.bypass||!!(track&&track.vstFxBypass)}:{type:'builtin',id:s.type,params:s.params&&Object.keys(s.params).length?s.params:{},bypass:!!s.bypass});let st;try{st=await window.SonicAPI.fxRealtimeStart({fx_chain:chainPayload,sample_rate:ctx.sampleRate||44100});}catch(e){console.warn('[FX RT track] start fail',trackId,path,e);return;}const entry={sessionId:st.session_id,ws:null,node:null,ready:false,path,spliced:null,chainKey:fxRtTrackChainKey(chain)+'|vb:'+(track&&track.vstFxBypass?'1':'0'),paramsBySlot:chain.map(s=>fxRtEntryParams(s,null)),inQueue:[],pumpTimer:null,lastInSent:0,flushing:false,flushTimer:null};fxRtTracks[key]=entry;fxRtGuiPushShm();try{await ctx.audioWorklet.addModule(`${API_BASE_URL}/static/js/sf-fx-realtime.js?v=202609071125`);const node=new AudioWorkletNode(ctx,'sf-fx-realtime',{numberOfInputs:1,numberOfOutputs:1,outputChannelCount:[2]});entry.node=node;const u=new URL(API_BASE_URL);const wsProto=u.protocol==='https:'?'wss://':'ws://';// WS to 'localhost' bi tre ~300ms (Chromium thu ::1 truoc roi fallback) - dung 127.0.0.1
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const fxRtTrackStart=async(trackId,track,path)=>{const key=trackId+':'+path;const chain=fxRtTrackChain(track);if(!chain.length)return;if(fxRtTracks[key]){if(!fxRtTracks[key].node||fxRtTracks[key].node.context!==getAudioContext())fxRtTrackStop(trackId,path,true);else return;}const ctx=getAudioContext();if(!ctx||!ctx.audioWorklet)return;const chainPayload=chain.map(s=>s.type==='vst3'?{type:'vst3',path:s.path,name:s.name||s.path,preset_b64:s.preset_b64||'',bypass:!!s.bypass||!!(track&&track.vstFxBypass)}:{type:'builtin',id:s.type,params:s.params&&Object.keys(s.params).length?s.params:{},bypass:!!s.bypass});let st;try{st=await window.SonicAPI.fxRealtimeStart({fx_chain:chainPayload,sample_rate:ctx.sampleRate||44100});}catch(e){console.warn('[FX RT track] start fail',trackId,path,e);return;}const entry={sessionId:st.session_id,ws:null,node:null,ready:false,path,spliced:null,chainKey:fxRtTrackChainKey(chain)+'|vb:'+(track&&track.vstFxBypass?'1':'0'),paramsBySlot:chain.map(s=>fxRtEntryParams(s,null)),inQueue:[],pumpTimer:null,lastInSent:0,flushing:false,flushTimer:null};fxRtTracks[key]=entry;fxRtGuiPushShm();try{await ctx.audioWorklet.addModule(`${API_BASE_URL}/static/js/sf-fx-realtime.js?v=202608291749`);const node=new AudioWorkletNode(ctx,'sf-fx-realtime',{numberOfInputs:1,numberOfOutputs:1,outputChannelCount:[2]});entry.node=node;const u=new URL(API_BASE_URL);const wsProto=u.protocol==='https:'?'wss://':'ws://';// WS to 'localhost' bi tre ~300ms (Chromium thu ::1 truoc roi fallback) - dung 127.0.0.1
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const wsHost=u.hostname==='localhost'||u.hostname==='::1'?'127.0.0.1'+(u.port?':'+u.port:''):u.host;const tok=localStorage.getItem('sonic_token')||'';const ws=new WebSocket(`${wsProto}${wsHost}${st.ws_url}${tok?'?token='+encodeURIComponent(tok):''}`);entry.ws=ws;ws.binaryType='arraybuffer';ws.onopen=()=>{entry.ready=true;entry.inQueue=[];// bỏ audio stale trước khi WS open — hết lag khởi đầu
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fxRtTrackSplice(trackId,path);try{(entry.paramsBySlot||[]).forEach((pl,slot)=>pl.forEach(p=>ws.send(JSON.stringify({cmd:'set_param',slot,key:p.key,value:p.value}))));}catch(e){}};ws.onmessage=ev=>{if(typeof ev.data==='string'){try{const d=JSON.parse(ev.data);if(d&&d.cmd==='flush_done'){entry.flushing=false;if(entry.flushTimer){clearTimeout(entry.flushTimer);entry.flushTimer=null;}if(entry.node)entry.node.port.postMessage({type:'flush_done'});}}catch(e){}return;}if(!(ev.data instanceof ArrayBuffer)||!entry.node)return;if(entry.flushing)return;// V24: output stale trong luc flush — drop
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const f=new Float32Array(ev.data);const half=f.length/2;const l=new Float32Array(half);const r=new Float32Array(half);for(let i=0;i<half;i++){l[i]=f[i*2];r[i]=f[i*2+1];}entry.node.port.postMessage({type:'out',l,r});};ws.onclose=()=>fxRtTrackStop(trackId,path,true);ws.onerror=()=>{try{ws.close();}catch(e){}};entry.node.port.onmessage=ev=>{const d=ev.data;if(!d||!entry.ws)return;if(d.type==='flush'){// V24: nhu master — worklet underrun-resume → flush engine ring
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