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r=ge.nodePermissions(e,"x");return r||(e.node_ops.lookup?0:2)},mayCreate:function(e,r){try{ge.lookupNode(e,r);return 20}catch(e){}return ge.nodePermissions(e,"wx")},mayDelete:function(e,r,t){var n;try{n=ge.lookupNode(e,r)}catch(e){return e.errno}var o=ge.nodePermissions(e,"wx");if(o)return o;if(t){if(!ge.isDir(n.mode))return 54;if(ge.isRoot(n)||ge.getPath(n)===ge.cwd())return 10}else if(ge.isDir(n.mode))return 31;return 0},mayOpen:function(e,r){return e?ge.isLink(e.mode)?32:ge.isDir(e.mode)&&("r"!==ge.flagsToPermissionString(r)||512&r)?31:ge.nodePermissions(e,ge.flagsToPermissionString(r)):44},MAX_OPEN_FDS:4096,nextfd:function(e,r){e=e||0,r=r||ge.MAX_OPEN_FDS;for(var t=e;t<=r;t++)if(!ge.streams[t])return t;throw new ge.ErrnoError(33)},getStream:function(e){return ge.streams[e]},createStream:function(e,r,t){ge.FSStream||(ge.FSStream=function(){},ge.FSStream.prototype={object:{get:function(){return this.node},set:function(e){this.node=e}},isRead:{get:function(){return 1!=(2097155&this.flags)}},isWrite:{get:function(){return 0!=(2097155&this.flags)}},isAppend:{get:function(){return 1024&this.flags}}});var n=new ge.FSStream;for(var o in e)n[o]=e[o];e=n;var a=ge.nextfd(r,t);return e.fd=a,ge.streams[a]=e,e},closeStream:function(e){ge.streams[e]=null},chrdev_stream_ops:{open:function(e){var r=ge.getDevice(e.node.rdev);e.stream_ops=r.stream_ops,e.stream_ops.open&&e.stream_ops.open(e)},llseek:function(){throw new ge.ErrnoError(70)}},major:function(e){return e>>8},minor:function(e){return 255&e},makedev:function(e,r){return e<<8|r},registerDevice:function(e,r){ge.devices[e]={stream_ops:r}},getDevice:function(e){return ge.devices[e]},getMounts:function(e){for(var r=[],t=[e];t.length;){var n=t.pop();r.push(n),t.push.apply(t,n.mounts)}return r},syncfs:function(e,r){"function"==typeof e&&(r=e,e=!1),ge.syncFSRequests++,ge.syncFSRequests>1&&w("warning: "+ge.syncFSRequests+" FS.syncfs operations in flight at once, probably just doing extra work");var t=ge.getMounts(ge.root.mount),n=0;function o(e){return ge.syncFSRequests--,r(e)}function a(e){if(e)return a.errored?void 0:(a.errored=!0,o(e));++n>=t.length&&o(null)}t.forEach((function(r){if(!r.type.syncfs)return a(null);r.type.syncfs(r,e,a)}))},mount:function(e,r,t){var n,o="/"===t,a=!t;if(o&&ge.root)throw new ge.ErrnoError(10);if(!o&&!a){var i=ge.lookupPath(t,{follow_mount:!1});if(t=i.path,n=i.node,ge.isMountpoint(n))throw new ge.ErrnoError(10);if(!ge.isDir(n.mode))throw new ge.ErrnoError(54)}var s={type:e,opts:r,mountpoint:t,mounts:[]},u=e.mount(s);return u.mount=s,s.root=u,o?ge.root=u:n&&(n.mounted=s,n.mount&&n.mount.mounts.push(s)),u},unmount:function(e){var r=ge.lookupPath(e,{follow_mount:!1});if(!ge.isMountpoint(r.node))throw new ge.ErrnoError(28);var t=r.node,n=t.mounted,o=ge.getMounts(n);Object.keys(ge.nameTable).forEach((function(e){for(var r=ge.nameTable[e];r;){var t=r.name_next;-1!==o.indexOf(r.mount)&&ge.destroyNode(r),r=t}})),t.mounted=null;var a=t.mount.mounts.indexOf(n);t.mount.mounts.splice(a,1)},lookup:function(e,r){return e.node_ops.lookup(e,r)},mknod:function(e,r,t){var n=ge.lookupPath(e,{parent:!0}).node,o=de.basename(e);if(!o||"."===o||".."===o)throw new ge.ErrnoError(28);var a=ge.mayCreate(n,o);if(a)throw new ge.ErrnoError(a);if(!n.node_ops.mknod)throw new ge.ErrnoError(63);return n.node_ops.mknod(n,o,r,t)},create:function(e,r){return r=void 0!==r?r:438,r&=4095,r|=32768,ge.mknod(e,r,0)},mkdir:function(e,r){return r=void 0!==r?r:511,r&=1023,r|=16384,ge.mknod(e,r,0)},mkdirTree:function(e,r){for(var t=e.split("/"),n="",o=0;o<t.length;++o)if(t[o]){n+="/"+t[o];try{ge.mkdir(n,r)}catch(e){if(20!=e.errno)throw e}}},mkdev:function(e,r,t){return void 0===t&&(t=r,r=438),r|=8192,ge.mknod(e,r,t)},symlink:function(e,r){if(!pe.resolve(e))throw new ge.ErrnoError(44);var t=ge.lookupPath(r,{parent:!0}).node;if(!t)throw new ge.ErrnoError(44);var n=de.basename(r),o=ge.mayCreate(t,n);if(o)throw new ge.ErrnoError(o);if(!t.node_ops.symlink)throw new ge.ErrnoError(63);return t.node_ops.symlink(t,n,e)},rename:function(e,r){var t,n,o=de.dirname(e),a=de.dirname(r),i=de.basename(e),s=de.basename(r);if(t=ge.lookupPath(e,{parent:!0}).node,n=ge.lookupPath(r,{parent:!0}).node,!t||!n)throw new ge.ErrnoError(44);if(t.mount!==n.mount)throw new ge.ErrnoError(75);var u,c=ge.lookupNode(t,i),f=pe.relative(e,a);if("."!==f.charAt(0))throw new ge.ErrnoError(28);if("."!==(f=pe.relative(r,o)).charAt(0))throw new ge.ErrnoError(55);try{u=ge.lookupNode(n,s)}catch(e){}if(c!==u){var l=ge.isDir(c.mode),d=ge.mayDelete(t,i,l);if(d)throw new ge.ErrnoError(d);if(d=u?ge.mayDelete(n,s,l):ge.mayCreate(n,s))throw new ge.ErrnoError(d);if(!t.node_ops.rename)throw new ge.ErrnoError(63);if(ge.isMountpoint(c)||u&&ge.isMountpoint(u))throw new ge.ErrnoError(10);if(n!==t&&(d=ge.nodePermissions(t,"w")))throw new ge.ErrnoError(d);try{ge.trackingDelegate.willMovePath}catch(t){w("FS.trackingDelegate['willMovePath']('"+e+"', 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r=ge.lookupPath(e,{parent:!0}).node,t=de.basename(e),n=ge.lookupNode(r,t),o=ge.mayDelete(r,t,!1);if(o)throw new ge.ErrnoError(o);if(!r.node_ops.unlink)throw new ge.ErrnoError(63);if(ge.isMountpoint(n))throw new ge.ErrnoError(10);try{ge.trackingDelegate.willDeletePath}catch(r){w("FS.trackingDelegate['willDeletePath']('"+e+"') threw an exception: "+r.message)}r.node_ops.unlink(r,t),ge.destroyNode(n);try{ge.trackingDelegate.onDeletePath}catch(r){w("FS.trackingDelegate['onDeletePath']('"+e+"') threw an exception: "+r.message)}},readlink:function(e){var r=ge.lookupPath(e).node;if(!r)throw new ge.ErrnoError(44);if(!r.node_ops.readlink)throw new ge.ErrnoError(28);return pe.resolve(ge.getPath(r.parent),r.node_ops.readlink(r))},stat:function(e,r){var t=ge.lookupPath(e,{follow:!r}).node;if(!t)throw new ge.ErrnoError(44);if(!t.node_ops.getattr)throw new ge.ErrnoError(63);return t.node_ops.getattr(t)},lstat:function(e){return ge.stat(e,!0)},chmod:function(e,r,t){var n;"string"==typeof e?n=ge.lookupPath(e,{follow:!t}).node:n=e;if(!n.node_ops.setattr)throw new ge.ErrnoError(63);n.node_ops.setattr(n,{mode:4095&r|-4096&n.mode,timestamp:Date.now()})},lchmod:function(e,r){ge.chmod(e,r,!0)},fchmod:function(e,r){var t=ge.getStream(e);if(!t)throw new ge.ErrnoError(8);ge.chmod(t.node,r)},chown:function(e,r,t,n){var o;"string"==typeof e?o=ge.lookupPath(e,{follow:!n}).node:o=e;if(!o.node_ops.setattr)throw new ge.ErrnoError(63);o.node_ops.setattr(o,{timestamp:Date.now()})},lchown:function(e,r,t){ge.chown(e,r,t,!0)},fchown:function(e,r,t){var n=ge.getStream(e);if(!n)throw new ge.ErrnoError(8);ge.chown(n.node,r,t)},truncate:function(e,r){if(r<0)throw new ge.ErrnoError(28);var t;"string"==typeof e?t=ge.lookupPath(e,{follow:!0}).node:t=e;if(!t.node_ops.setattr)throw new ge.ErrnoError(63);if(ge.isDir(t.mode))throw new ge.ErrnoError(31);if(!ge.isFile(t.mode))throw new ge.ErrnoError(28);var n=ge.nodePermissions(t,"w");if(n)throw new ge.ErrnoError(n);t.node_ops.setattr(t,{size:r,timestamp:Date.now()})},ftruncate:function(e,r){var t=ge.getStream(e);if(!t)throw new ge.ErrnoError(8);if(0==(2097155&t.flags))throw new ge.ErrnoError(28);ge.truncate(t.node,r)},utime:function(e,r,t){var n=ge.lookupPath(e,{follow:!0}).node;n.node_ops.setattr(n,{timestamp:Math.max(r,t)})},open:function(e,r,n,o,a){if(""===e)throw new ge.ErrnoError(44);var i;if(n=void 0===n?438:n,n=64&(r="string"==typeof r?ge.modeStringToFlags(r):r)?4095&n|32768:0,"object"==typeof e)i=e;else{e=de.normalize(e);try{i=ge.lookupPath(e,{follow:!(131072&r)}).node}catch(e){}}var s=!1;if(64&r)if(i){if(128&r)throw new ge.ErrnoError(20)}else i=ge.mknod(e,n,0),s=!0;if(!i)throw new ge.ErrnoError(44);if(ge.isChrdev(i.mode)&&(r&=-513),65536&r&&!ge.isDir(i.mode))throw new ge.ErrnoError(54);if(!s){var u=ge.mayOpen(i,r);if(u)throw new ge.ErrnoError(u)}512&r&&ge.truncate(i,0),r&=-131713;var c=ge.createStream({node:i,path:ge.getPath(i),flags:r,seekable:!0,position:0,stream_ops:i.stream_ops,ungotten:[],error:!1},o,a);c.stream_ops.open&&c.stream_ops.open(c),!t.logReadFiles||1&r||(ge.readFiles||(ge.readFiles={}),e in ge.readFiles||(ge.readFiles[e]=1,w("FS.trackingDelegate error on read file: "+e)));try{ge.trackingDelegate.onOpenFile}catch(r){w("FS.trackingDelegate['onOpenFile']('"+e+"', flags) threw an exception: "+r.message)}return c},close:function(e){if(ge.isClosed(e))throw new ge.ErrnoError(8);e.getdents&&(e.getdents=null);try{e.stream_ops.close&&e.stream_ops.close(e)}catch(e){throw e}finally{ge.closeStream(e.fd)}e.fd=null},isClosed:function(e){return null===e.fd},llseek:function(e,r,t){if(ge.isClosed(e))throw new ge.ErrnoError(8);if(!e.seekable||!e.stream_ops.llseek)throw new ge.ErrnoError(70);if(0!=t&&1!=t&&2!=t)throw new ge.ErrnoError(28);return e.position=e.stream_ops.llseek(e,r,t),e.ungotten=[],e.position},read:function(e,r,t,n,o){if(n<0||o<0)throw new ge.ErrnoError(28);if(ge.isClosed(e))throw new ge.ErrnoError(8);if(1==(2097155&e.flags))throw new ge.ErrnoError(8);if(ge.isDir(e.node.mode))throw new ge.ErrnoError(31);if(!e.stream_ops.read)throw new ge.ErrnoError(28);var a=void 0!==o;if(a){if(!e.seekable)throw new ge.ErrnoError(70)}else o=e.position;var i=e.stream_ops.read(e,r,t,n,o);return a||(e.position+=i),i},write:function(e,r,t,n,o,a){if(n<0||o<0)throw new ge.ErrnoError(28);if(ge.isClosed(e))throw new ge.ErrnoError(8);if(0==(2097155&e.flags))throw new ge.ErrnoError(8);if(ge.isDir(e.node.mode))throw new ge.ErrnoError(31);if(!e.stream_ops.write)throw new ge.ErrnoError(28);e.seekable&&1024&e.flags&&ge.llseek(e,0,2);var i=void 0!==o;if(i){if(!e.seekable)throw new ge.ErrnoError(70)}else o=e.position;var s=e.stream_ops.write(e,r,t,n,o,a);i||(e.position+=s);try{e.path&&ge.trackingDelegate.onWriteToFile&&ge.trackingDelegate.onWriteToFile(e.path)}catch(r){w("FS.trackingDelegate['onWriteToFile']('"+e.path+"') threw an exception: "+r.message)}return s},allocate:function(e,r,t){if(ge.isClosed(e))throw new ge.ErrnoError(8);if(r<0||t<=0)throw new ge.ErrnoError(28);if(0==(2097155&e.flags))throw new ge.ErrnoError(8);if(!ge.isFile(e.node.mode)&&!ge.isDir(e.node.mode))throw new ge.ErrnoError(43);if(!e.stream_ops.allocate)throw new ge.ErrnoError(138);e.stream_ops.allocate(e,r,t)},mmap:function(e,r,t,n,o,a){if(0!=(2&o)&&0==(2&a)&&2!=(2097155&e.flags))throw new ge.ErrnoError(2);if(1==(2097155&e.flags))throw new ge.ErrnoError(2);if(!e.stream_ops.mmap)throw new ge.ErrnoError(43);return e.stream_ops.mmap(e,r,t,n,o,a)},msync:function(e,r,t,n,o){return e&&e.stream_ops.msync?e.stream_ops.msync(e,r,t,n,o):0},munmap:function(e){return 0},ioctl:function(e,r,t){if(!e.stream_ops.ioctl)throw new ge.ErrnoError(59);return e.stream_ops.ioctl(e,r,t)},readFile:function(e,r){if((r=r||{}).flags=r.flags||0,r.encoding=r.encoding||"binary","utf8"!==r.encoding&&"binary"!==r.encoding)throw new Error('Invalid encoding type "'+r.encoding+'"');var t,n=ge.open(e,r.flags),o=ge.stat(e).size,a=new Uint8Array(o);return ge.read(n,a,0,o,0),"utf8"===r.encoding?t=C(a,0):"binary"===r.encoding&&(t=a),ge.close(n),t},writeFile:function(e,r,t){(t=t||{}).flags=t.flags||577;var n=ge.open(e,t.flags,t.mode);if("string"==typeof r){var o=new Uint8Array(F(r)+1),a=D(r,o,0,o.length);ge.write(n,o,0,a,void 0,t.canOwn)}else{if(!ArrayBuffer.isView(r))throw new Error("Unsupported data type");ge.write(n,r,0,r.byteLength,void 0,t.canOwn)}ge.close(n)},cwd:function(){return ge.currentPath},chdir:function(e){var r=ge.lookupPath(e,{follow:!0});if(null===r.node)throw new ge.ErrnoError(44);if(!ge.isDir(r.node.mode))throw new ge.ErrnoError(54);var t=ge.nodePermissions(r.node,"x");if(t)throw new ge.ErrnoError(t);ge.currentPath=r.path},createDefaultDirectories:function(){ge.mkdir("/tmp"),ge.mkdir("/home"),ge.mkdir("/home/web_user")},createDefaultDevices:function(){ge.mkdir("/dev"),ge.registerDevice(ge.makedev(1,3),{read:function(){return 0},write:function(e,r,t,n,o){return n}}),ge.mkdev("/dev/null",ge.makedev(1,3)),he.register(ge.makedev(5,0),he.default_tty_ops),he.register(ge.makedev(6,0),he.default_tty1_ops),ge.mkdev("/dev/tty",ge.makedev(5,0)),ge.mkdev("/dev/tty1",ge.makedev(6,0));var e=function(){if("object"==typeof crypto&&"function"==typeof crypto.getRandomValues){var e=new Uint8Array(1);return function(){return crypto.getRandomValues(e),e[0]}}if(c)try{var r=i.default;return function(){return r.randomBytes(1)[0]}}catch(e){}return function(){te("randomDevice")}}();ge.createDevice("/dev","random",e),ge.createDevice("/dev","urandom",e),ge.mkdir("/dev/shm"),ge.mkdir("/dev/shm/tmp")},createSpecialDirectories:function(){ge.mkdir("/proc");var e=ge.mkdir("/proc/self");ge.mkdir("/proc/self/fd"),ge.mount({mount:function(){var r=ge.createNode(e,"fd",16895,73);return r.node_ops={lookup:function(e,r){var t=+r,n=ge.getStream(t);if(!n)throw new ge.ErrnoError(8);var o={parent:null,mount:{mountpoint:"fake"},node_ops:{readlink:function(){return n.path}}};return o.parent=o,o}},r}},{},"/proc/self/fd")},createStandardStreams:function(){t.stdin?ge.createDevice("/dev","stdin",t.stdin):ge.symlink("/dev/tty","/dev/stdin"),t.stdout?ge.createDevice("/dev","stdout",null,t.stdout):ge.symlink("/dev/tty","/dev/stdout"),t.stderr?ge.createDevice("/dev","stderr",null,t.stderr):ge.symlink("/dev/tty1","/dev/stderr"),ge.open("/dev/stdin",0),ge.open("/dev/stdout",1),ge.open("/dev/stderr",1)},ensureErrnoError:function(){ge.ErrnoError||(ge.ErrnoError=function(e,r){this.node=r,this.setErrno=function(e){this.errno=e},this.setErrno(e),this.message="FS error"},ge.ErrnoError.prototype=new Error,ge.ErrnoError.prototype.constructor=ge.ErrnoError,[44].forEach((function(e){ge.genericErrors[e]=new ge.ErrnoError(e),ge.genericErrors[e].stack="<generic error, no stack>"})))},staticInit:function(){ge.ensureErrnoError(),ge.nameTable=new 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d=l("ySampler",0),p=l("uSampler",1),h=l("vSampler",2);return{render:function(r,t,n,o,a){e.viewport(0,0,r,t),e.activeTexture(e.TEXTURE0),e.bindTexture(e.TEXTURE_2D,d),e.texImage2D(e.TEXTURE_2D,0,e.LUMINANCE,r,t,0,e.LUMINANCE,e.UNSIGNED_BYTE,n),e.activeTexture(e.TEXTURE1),e.bindTexture(e.TEXTURE_2D,p),e.texImage2D(e.TEXTURE_2D,0,e.LUMINANCE,r/2,t/2,0,e.LUMINANCE,e.UNSIGNED_BYTE,o),e.activeTexture(e.TEXTURE2),e.bindTexture(e.TEXTURE_2D,h),e.texImage2D(e.TEXTURE_2D,0,e.LUMINANCE,r/2,t/2,0,e.LUMINANCE,e.UNSIGNED_BYTE,a),e.drawArrays(e.TRIANGLE_STRIP,0,4)},destroy:function(){try{e.deleteProgram(i),e.deleteBuffer(s),e.deleteBuffer(c),e.deleteTexture(d),e.deleteTexture(p),e.deleteBuffer(h)}catch(e){}}}})(this.offscreenCanvasGL,n.opt.openWebglAlignment),this.draw=function(n,a,i,u){this.webglObj.render(e,r,s.HEAPU8.subarray(a,a+t),s.HEAPU8.subarray(i,i+o),s.HEAPU8.subarray(u,u+o));let c=this.offscreenCanvas.transferToImageBitmap();postMessage({cmd:h,buffer:c,delay:this.delay,ts:n},[c])}):this.draw=function(e,r,n,a){var i=[s.HEAPU8.subarray(r,r+t),s.HEAPU8.subarray(n,n+o),s.HEAPU8.subarray(a,a+o)].map((e=>Uint8Array.from(e)));postMessage({cmd:h,output:i,delay:this.delay,ts:e},i.map((e=>e.buffer)))}},getDelay:function(e){return e?(this.firstTimestamp?e&&(this.delay=Date.now()-this.startTimestamp-(e-this.firstTimestamp)):(this.firstTimestamp=e,this.startTimestamp=Date.now(),this.delay=-1),this.delay):-1},resetDelay:function(){this.firstTimestamp=null,this.startTimestamp=null,this.delay=-1},init:function(){n.opt.debug&&console.log("Jessibuca: [worker] init");const r=e=>{n.opt.useWCS&&n.useOffscreen()&&e.type===E&&t.decode?t.decode(e.payload,e.ts):e.decoder.decode(e.payload,e.ts)};this.stopId=setInterval((()=>{if(e.length)if(this.dropping){for((t=e.shift()).type===w&&0===t.payload[1]&&r(t);!t.isIFrame&&e.length;)(t=e.shift()).type===w&&0===t.payload[1]&&r(t);t.isIFrame&&(this.dropping=!1,r(t))}else{var t=e[0];if(-1===this.getDelay(t.ts))n.opt.debug&&console.log("Jessibuca: [worker]: common dumex delay is -1"),e.shift(),r(t);else if(this.delay>n.opt.videoBuffer+1e3)n.opt.debug&&console.log("Jessibuca: [worker]:",`delay is ${this.delay}, set dropping is true`),this.resetDelay(),this.dropping=!0;else for(;e.length&&(t=e[0],this.getDelay(t.ts)>n.opt.videoBuffer);)e.shift(),r(t)}}),10)},close:function(){n.opt.debug&&console.log("Jessibuca: [worker]: close"),clearInterval(this.stopId),this.stopId=null,o.clear(),a.clear(),t.reset&&t.reset(),this.firstTimestamp=null,this.startTimestamp=null,this.delay=-1,this.dropping=!1,this.webglObj&&(this.webglObj.destroy(),this.offscreenCanvas=null,this.offscreenCanvasGL=null,this.offscreenCanvasCtx=null),e=[],r=[],delete this.playAudioPlanar,delete this.draw},pushBuffer:function(r,t){t.type===w?e.push({ts:t.ts,payload:r,decoder:o,type:w}):t.type===E&&e.push({ts:t.ts,payload:r,decoder:a,type:E,isIFrame:t.isIFrame})}},o=new s.AudioDecoder(n),a=new s.VideoDecoder(n);postMessage({cmd:b}),self.onmessage=function(e){var r=e.data;switch(r.cmd){case b:try{n.opt=Object.assign(n.opt,JSON.parse(r.opt))}catch(e){}o.sample_rate=r.sampleRate,n.init();break;case _:n.pushBuffer(r.buffer,r.options);break;case k:o.decode(r.buffer,r.ts);break;case T:a.decode(r.buffer,r.ts);break;case P:n.close();break;case C:n.opt[r.key]=r.value}}}}));