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r=he.nodePermissions(e,"x");return r||(e.node_ops.lookup?0:2)},mayCreate:function(e,r){try{he.lookupNode(e,r);return 20}catch(e){}return he.nodePermissions(e,"wx")},mayDelete:function(e,r,t){var n;try{n=he.lookupNode(e,r)}catch(e){return e.errno}var o=he.nodePermissions(e,"wx");if(o)return o;if(t){if(!he.isDir(n.mode))return 54;if(he.isRoot(n)||he.getPath(n)===he.cwd())return 10}else if(he.isDir(n.mode))return 31;return 0},mayOpen:function(e,r){return e?he.isLink(e.mode)?32:he.isDir(e.mode)&&("r"!==he.flagsToPermissionString(r)||512&r)?31:he.nodePermissions(e,he.flagsToPermissionString(r)):44},MAX_OPEN_FDS:4096,nextfd:function(e,r){e=e||0,r=r||he.MAX_OPEN_FDS;for(var t=e;t<=r;t++)if(!he.streams[t])return t;throw new he.ErrnoError(33)},getStream:function(e){return he.streams[e]},createStream:function(e,r,t){he.FSStream||(he.FSStream=function(){},he.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 he.FSStream;for(var o in e)n[o]=e[o];e=n;var i=he.nextfd(r,t);return e.fd=i,he.streams[i]=e,e},closeStream:function(e){he.streams[e]=null},chrdev_stream_ops:{open:function(e){var r=he.getDevice(e.node.rdev);e.stream_ops=r.stream_ops,e.stream_ops.open&&e.stream_ops.open(e)},llseek:function(){throw new he.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){he.devices[e]={stream_ops:r}},getDevice:function(e){return he.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),he.syncFSRequests++,he.syncFSRequests>1&&E("warning: "+he.syncFSRequests+" FS.syncfs operations in flight at once, probably just doing extra work");var t=he.getMounts(he.root.mount),n=0;function o(e){return he.syncFSRequests--,r(e)}function i(e){if(e)return i.errored?void 0:(i.errored=!0,o(e));++n>=t.length&&o(null)}t.forEach((function(r){if(!r.type.syncfs)return i(null);r.type.syncfs(r,e,i)}))},mount:function(e,r,t){var n,o="/"===t,i=!t;if(o&&he.root)throw new he.ErrnoError(10);if(!o&&!i){var a=he.lookupPath(t,{follow_mount:!1});if(t=a.path,n=a.node,he.isMountpoint(n))throw new he.ErrnoError(10);if(!he.isDir(n.mode))throw new he.ErrnoError(54)}var s={type:e,opts:r,mountpoint:t,mounts:[]},u=e.mount(s);return u.mount=s,s.root=u,o?he.root=u:n&&(n.mounted=s,n.mount&&n.mount.mounts.push(s)),u},unmount:function(e){var r=he.lookupPath(e,{follow_mount:!1});if(!he.isMountpoint(r.node))throw new he.ErrnoError(28);var t=r.node,n=t.mounted,o=he.getMounts(n);Object.keys(he.nameTable).forEach((function(e){for(var r=he.nameTable[e];r;){var t=r.name_next;o.includes(r.mount)&&he.destroyNode(r),r=t}})),t.mounted=null;var i=t.mount.mounts.indexOf(n);t.mount.mounts.splice(i,1)},lookup:function(e,r){return e.node_ops.lookup(e,r)},mknod:function(e,r,t){var n=he.lookupPath(e,{parent:!0}).node,o=ce.basename(e);if(!o||"."===o||".."===o)throw new he.ErrnoError(28);var i=he.mayCreate(n,o);if(i)throw new he.ErrnoError(i);if(!n.node_ops.mknod)throw new he.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,he.mknod(e,r,0)},mkdir:function(e,r){return r=void 0!==r?r:511,r&=1023,r|=16384,he.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{he.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,he.mknod(e,r,t)},symlink:function(e,r){if(!fe.resolve(e))throw new he.ErrnoError(44);var t=he.lookupPath(r,{parent:!0}).node;if(!t)throw new he.ErrnoError(44);var n=ce.basename(r),o=he.mayCreate(t,n);if(o)throw new he.ErrnoError(o);if(!t.node_ops.symlink)throw new he.ErrnoError(63);return t.node_ops.symlink(t,n,e)},rename:function(e,r){var t,n,o=ce.dirname(e),i=ce.dirname(r),a=ce.basename(e),s=ce.basename(r);if(t=he.lookupPath(e,{parent:!0}).node,n=he.lookupPath(r,{parent:!0}).node,!t||!n)throw new he.ErrnoError(44);if(t.mount!==n.mount)throw new he.ErrnoError(75);var u,c=he.lookupNode(t,a),f=fe.relative(e,i);if("."!==f.charAt(0))throw new he.ErrnoError(28);if("."!==(f=fe.relative(r,o)).charAt(0))throw new he.ErrnoError(55);try{u=he.lookupNode(n,s)}catch(e){}if(c!==u){var l=he.isDir(c.mode),d=he.mayDelete(t,a,l);if(d)throw new he.ErrnoError(d);if(d=u?he.mayDelete(n,s,l):he.mayCreate(n,s))throw new he.ErrnoError(d);if(!t.node_ops.rename)throw new he.ErrnoError(63);if(he.isMountpoint(c)||u&&he.isMountpoint(u))throw new he.ErrnoError(10);if(n!==t&&(d=he.nodePermissions(t,"w")))throw new he.ErrnoError(d);he.hashRemoveNode(c);try{t.node_ops.rename(c,n,s)}catch(e){throw e}finally{he.hashAddNode(c)}}},rmdir:function(e){var r=he.lookupPath(e,{parent:!0}).node,t=ce.basename(e),n=he.lookupNode(r,t),o=he.mayDelete(r,t,!0);if(o)throw new he.ErrnoError(o);if(!r.node_ops.rmdir)throw new he.ErrnoError(63);if(he.isMountpoint(n))throw new he.ErrnoError(10);r.node_ops.rmdir(r,t),he.destroyNode(n)},readdir:function(e){var r=he.lookupPath(e,{follow:!0}).node;if(!r.node_ops.readdir)throw new he.ErrnoError(54);return r.node_ops.readdir(r)},unlink:function(e){var r=he.lookupPath(e,{parent:!0}).node,t=ce.basename(e),n=he.lookupNode(r,t),o=he.mayDelete(r,t,!1);if(o)throw new he.ErrnoError(o);if(!r.node_ops.unlink)throw new he.ErrnoError(63);if(he.isMountpoint(n))throw new he.ErrnoError(10);r.node_ops.unlink(r,t),he.destroyNode(n)},readlink:function(e){var r=he.lookupPath(e).node;if(!r)throw new he.ErrnoError(44);if(!r.node_ops.readlink)throw new he.ErrnoError(28);return fe.resolve(he.getPath(r.parent),r.node_ops.readlink(r))},stat:function(e,r){var t=he.lookupPath(e,{follow:!r}).node;if(!t)throw new he.ErrnoError(44);if(!t.node_ops.getattr)throw new he.ErrnoError(63);return t.node_ops.getattr(t)},lstat:function(e){return he.stat(e,!0)},chmod:function(e,r,t){var n;"string"==typeof e?n=he.lookupPath(e,{follow:!t}).node:n=e;if(!n.node_ops.setattr)throw new he.ErrnoError(63);n.node_ops.setattr(n,{mode:4095&r|-4096&n.mode,timestamp:Date.now()})},lchmod:function(e,r){he.chmod(e,r,!0)},fchmod:function(e,r){var t=he.getStream(e);if(!t)throw new he.ErrnoError(8);he.chmod(t.node,r)},chown:function(e,r,t,n){var o;"string"==typeof e?o=he.lookupPath(e,{follow:!n}).node:o=e;if(!o.node_ops.setattr)throw new he.ErrnoError(63);o.node_ops.setattr(o,{timestamp:Date.now()})},lchown:function(e,r,t){he.chown(e,r,t,!0)},fchown:function(e,r,t){var n=he.getStream(e);if(!n)throw new he.ErrnoError(8);he.chown(n.node,r,t)},truncate:function(e,r){if(r<0)throw new he.ErrnoError(28);var t;"string"==typeof e?t=he.lookupPath(e,{follow:!0}).node:t=e;if(!t.node_ops.setattr)throw new he.ErrnoError(63);if(he.isDir(t.mode))throw new he.ErrnoError(31);if(!he.isFile(t.mode))throw new he.ErrnoError(28);var n=he.nodePermissions(t,"w");if(n)throw new he.ErrnoError(n);t.node_ops.setattr(t,{size:r,timestamp:Date.now()})},ftruncate:function(e,r){var t=he.getStream(e);if(!t)throw new he.ErrnoError(8);if(0==(2097155&t.flags))throw new he.ErrnoError(28);he.truncate(t.node,r)},utime:function(e,r,t){var n=he.lookupPath(e,{follow:!0}).node;n.node_ops.setattr(n,{timestamp:Math.max(r,t)})},open:function(e,r,n,o,i){if(""===e)throw new he.ErrnoError(44);var a;if(n=void 0===n?438:n,n=64&(r="string"==typeof r?he.modeStringToFlags(r):r)?4095&n|32768:0,"object"==typeof e)a=e;else{e=ce.normalize(e);try{a=he.lookupPath(e,{follow:!(131072&r)}).node}catch(e){}}var s=!1;if(64&r)if(a){if(128&r)throw new he.ErrnoError(20)}else a=he.mknod(e,n,0),s=!0;if(!a)throw new he.ErrnoError(44);if(he.isChrdev(a.mode)&&(r&=-513),65536&r&&!he.isDir(a.mode))throw new he.ErrnoError(54);if(!s){var u=he.mayOpen(a,r);if(u)throw new he.ErrnoError(u)}512&r&&he.truncate(a,0),r&=-131713;var c=he.createStream({node:a,path:he.getPath(a),flags:r,seekable:!0,position:0,stream_ops:a.stream_ops,ungotten:[],error:!1},o,i);return c.stream_ops.open&&c.stream_ops.open(c),!t.logReadFiles||1&r||(he.readFiles||(he.readFiles={}),e in he.readFiles||(he.readFiles[e]=1)),c},close:function(e){if(he.isClosed(e))throw new he.ErrnoError(8);e.getdents&&(e.getdents=null);try{e.stream_ops.close&&e.stream_ops.close(e)}catch(e){throw e}finally{he.closeStream(e.fd)}e.fd=null},isClosed:function(e){return null===e.fd},llseek:function(e,r,t){if(he.isClosed(e))throw new he.ErrnoError(8);if(!e.seekable||!e.stream_ops.llseek)throw new he.ErrnoError(70);if(0!=t&&1!=t&&2!=t)throw new he.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 he.ErrnoError(28);if(he.isClosed(e))throw new he.ErrnoError(8);if(1==(2097155&e.flags))throw new he.ErrnoError(8);if(he.isDir(e.node.mode))throw new he.ErrnoError(31);if(!e.stream_ops.read)throw new he.ErrnoError(28);var i=void 0!==o;if(i){if(!e.seekable)throw new he.ErrnoError(70)}else o=e.position;var a=e.stream_ops.read(e,r,t,n,o);return i||(e.position+=a),a},write:function(e,r,t,n,o,i){if(n<0||o<0)throw new he.ErrnoError(28);if(he.isClosed(e))throw new he.ErrnoError(8);if(0==(2097155&e.flags))throw new he.ErrnoError(8);if(he.isDir(e.node.mode))throw new he.ErrnoError(31);if(!e.stream_ops.write)throw new he.ErrnoError(28);e.seekable&&1024&e.flags&&he.llseek(e,0,2);var a=void 0!==o;if(a){if(!e.seekable)throw new he.ErrnoError(70)}else o=e.position;var s=e.stream_ops.write(e,r,t,n,o,i);return a||(e.position+=s),s},allocate:function(e,r,t){if(he.isClosed(e))throw new he.ErrnoError(8);if(r<0||t<=0)throw new he.ErrnoError(28);if(0==(2097155&e.flags))throw new he.ErrnoError(8);if(!he.isFile(e.node.mode)&&!he.isDir(e.node.mode))throw new he.ErrnoError(43);if(!e.stream_ops.allocate)throw new he.ErrnoError(138);e.stream_ops.allocate(e,r,t)},mmap:function(e,r,t,n,o,i){if(0!=(2&o)&&0==(2&i)&&2!=(2097155&e.flags))throw new he.ErrnoError(2);if(1==(2097155&e.flags))throw new he.ErrnoError(2);if(!e.stream_ops.mmap)throw new he.ErrnoError(43);return e.stream_ops.mmap(e,r,t,n,o,i)},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 he.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=he.open(e,r.flags),o=he.stat(e).size,i=new Uint8Array(o);return he.read(n,i,0,o,0),"utf8"===r.encoding?t=P(i,0):"binary"===r.encoding&&(t=i),he.close(n),t},writeFile:function(e,r,t){(t=t||{}).flags=t.flags||577;var n=he.open(e,t.flags,t.mode);if("string"==typeof r){var o=new Uint8Array(S(r)+1),i=A(r,o,0,o.length);he.write(n,o,0,i,void 0,t.canOwn)}else{if(!ArrayBuffer.isView(r))throw new Error("Unsupported data type");he.write(n,r,0,r.byteLength,void 0,t.canOwn)}he.close(n)},cwd:function(){return he.currentPath},chdir:function(e){var r=he.lookupPath(e,{follow:!0});if(null===r.node)throw new he.ErrnoError(44);if(!he.isDir(r.node.mode))throw new he.ErrnoError(54);var t=he.nodePermissions(r.node,"x");if(t)throw new he.ErrnoError(t);he.currentPath=r.path},createDefaultDirectories:function(){he.mkdir("/tmp"),he.mkdir("/home"),he.mkdir("/home/web_user")},createDefaultDevices:function(){he.mkdir("/dev"),he.registerDevice(he.makedev(1,3),{read:function(){return 0},write:function(e,r,t,n,o){return n}}),he.mkdev("/dev/null",he.makedev(1,3)),le.register(he.makedev(5,0),le.default_tty_ops),le.register(he.makedev(6,0),le.default_tty1_ops),he.mkdev("/dev/tty",he.makedev(5,0)),he.mkdev("/dev/tty1",he.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(m)try{var r=a.default;return function(){return r.randomBytes(1)[0]}}catch(e){}return function(){ee("randomDevice")}}();he.createDevice("/dev","random",e),he.createDevice("/dev","urandom",e),he.mkdir("/dev/shm"),he.mkdir("/dev/shm/tmp")},createSpecialDirectories:function(){he.mkdir("/proc");var e=he.mkdir("/proc/self");he.mkdir("/proc/self/fd"),he.mount({mount:function(){var r=he.createNode(e,"fd",16895,73);return r.node_ops={lookup:function(e,r){var t=+r,n=he.getStream(t);if(!n)throw new he.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?he.createDevice("/dev","stdin",t.stdin):he.symlink("/dev/tty","/dev/stdin"),t.stdout?he.createDevice("/dev","stdout",null,t.stdout):he.symlink("/dev/tty","/dev/stdout"),t.stderr?he.createDevice("/dev","stderr",null,t.stderr):he.symlink("/dev/tty1","/dev/stderr"),he.open("/dev/stdin",0),he.open("/dev/stdout",1),he.open("/dev/stderr",1)},ensureErrnoError:function(){he.ErrnoError||(he.ErrnoError=function(e,r){this.node=r,this.setErrno=function(e){this.errno=e},this.setErrno(e),this.message="FS error"},he.ErrnoError.prototype=new Error,he.ErrnoError.prototype.constructor=he.ErrnoError,[44].forEach((function(e){he.genericErrors[e]=new he.ErrnoError(e),he.genericErrors[e].stack="<generic error, no stack>"})))},staticInit:function(){he.ensureErrnoError(),he.nameTable=new Array(4096),he.mount(pe,{},"/"),he.createDefaultDirectories(),he.createDefaultDevices(),he.createSpecialDirectories(),he.filesystems={MEMFS:pe}},init:function(e,r,n){he.init.initialized=!0,he.ensureErrnoError(),t.stdin=e||t.stdin,t.stdout=r||t.stdout,t.stderr=n||t.stderr,he.createStandardStreams()},quit:function(){he.init.initialized=!1;var e=t._fflush;e&&e(0);for(var r=0;r<he.streams.length;r++){var n=he.streams[r];n&&he.close(n)}},getMode:function(e,r){var t=0;return e&&(t|=365),r&&(t|=146),t},findObject:function(e,r){var t=he.analyzePath(e,r);return t.exists?t.object:null},analyzePath:function(e,r){try{e=(n=he.lookupPath(e,{follow:!r})).path}catch(e){}var t={isRoot:!1,exists:!1,error:0,name:null,path:null,object:null,parentExists:!1,parentPath:null,parentObject:null};try{var n=he.lookupPath(e,{parent:!0});t.parentExists=!0,t.parentPath=n.path,t.parentObject=n.node,t.name=ce.basename(e),n=he.lookupPath(e,{follow:!r}),t.exists=!0,t.path=n.path,t.object=n.node,t.name=n.node.name,t.isRoot="/"===n.path}catch(e){t.error=e.errno}return t},createPath:function(e,r,t,n){e="string"==typeof e?e:he.getPath(e);for(var o=r.split("/").reverse();o.length;){var i=o.pop();if(i){var a=ce.join2(e,i);try{he.mkdir(a)}catch(e){}e=a}}return a},createFile:function(e,r,t,n,o){var i=ce.join2("string"==typeof e?e:he.getPath(e),r),a=he.getMode(n,o);return he.create(i,a)},createDataFile:function(e,r,t,n,o,i){var a=r?ce.join2("string"==typeof e?e:he.getPath(e),r):e,s=he.getMode(n,o),u=he.create(a,s);if(t){if("string"==typeof t){for(var c=new Array(t.length),f=0,l=t.length;f<l;++f)c[f]=t.charCodeAt(f);t=c}he.chmod(u,146|s);var d=he.open(u,577);he.write(d,t,0,t.length,0,i),he.close(d),he.chmod(u,s)}return u},createDevice:function(e,r,t,n){var o=ce.join2("string"==typeof 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l=f("ySampler",0),d=f("uSampler",1),p=f("vSampler",2);return{render:function(r,t,n,o,i){e.viewport(0,0,r,t),e.activeTexture(e.TEXTURE0),e.bindTexture(e.TEXTURE_2D,l),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,d),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,p),e.texImage2D(e.TEXTURE_2D,0,e.LUMINANCE,r/2,t/2,0,e.LUMINANCE,e.UNSIGNED_BYTE,i),e.drawArrays(e.TRIANGLE_STRIP,0,4)},destroy:function(){try{e.deleteProgram(i),e.deleteBuffer(a),e.deleteBuffer(u),e.deleteTexture(l),e.deleteTexture(d),e.deleteBuffer(p)}catch(e){}}}})(this.offscreenCanvasGL),this.draw=function(n,i,a,u){this.webglObj.render(e,r,s.HEAPU8.subarray(i,i+t),s.HEAPU8.subarray(a,a+o),s.HEAPU8.subarray(u,u+o));let c=this.offscreenCanvas.transferToImageBitmap();postMessage({cmd:p,buffer:c,delay:this.delay,ts:n},[c])}):this.draw=function(e,r,n,i){var a=[s.HEAPU8.subarray(r,r+t),s.HEAPU8.subarray(n,n+o),s.HEAPU8.subarray(i,i+o)].map((e=>Uint8Array.from(e)));postMessage({cmd:p,output:a,delay:this.delay,ts:e},a.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===b&&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===E&&0===t.payload[1]&&r(t);!t.isIFrame&&e.length;)(t=e.shift()).type===E&&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)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(),i.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===E?e.push({ts:t.ts,payload:r,decoder:o,type:E}):t.type===b&&e.push({ts:t.ts,payload:r,decoder:i,type:b,isIFrame:t.isIFrame})}},o=new s.AudioDecoder(n),i=new s.VideoDecoder(n);postMessage({cmd:_}),self.onmessage=function(e){var r=e.data;switch(r.cmd){case _:try{n.opt=Object.assign(n.opt,JSON.parse(r.opt))}catch(e){}o.sample_rate=r.sampleRate,n.init();break;case k:n.pushBuffer(r.buffer,r.options);break;case T:o.decode(r.buffer,r.ts);break;case P:i.decode(r.buffer,r.ts);break;case C:n.close()}}}}));