!
function a(b,c,d){
function e(g,h){if(!c[g]){if(!b[g]){var i="
function"==typeof require&&require;
if(!h&&i)return i(g,!0);
if(f)return f(g,!0);
var j=new Error("Cannot find module '"+g+"'");
throw j.code="MODULE_NOT_FOUND",j}var k=c[g]={exports:{}};
b[g][0].call(k.exports,
function(a){var c=b[g][1][a];
return e(c?c:a)},k,k.exports,a,b,c,d)}return c[g].exports}for(var f="
function"==typeof require&&require,g=0;
g
g++)e(d[g]);
return e}({1:[
function(b,c,d){"use strict";
var e={};
e.encode=
function(a){for(var b=[],c=0;
c
++c){var d=a.charCodeAt(c);
d<128?b.push(d):d<2048?(b.push(192|d>>6),b.push(128|63&d)):d<65536?(b.push(224|d>>12),b.push(128|63&d>>6),b.push(128|63&d)):(b.push(240|d>>18),b.push(128|63&d>>12),b.push(128|63&d>>6),b.push(128|63&d))}return b},e.decode=
function(a){for(var b=[],c=0;
c
){var d=a[c++];
d<128||(d<224?(d=(31&d)<<6,d|=63&a[c++]):d<240?(d=(15&d)<<12,d|=(63&a[c++])<<6,d|=63&a[c++]):(d=(7&d)<<18,d|=(63&a[c++])<<12,d|=(63&a[c++])<<6,d|=63&a[c++])),b.push(String.fromCharCode(d))}return b.join("")};
var f={};
!
function(b){var c=
function(a){for(var c=0,d=[],e=0|a.length/3;
0
){var f=(a[c]<<16)+(a[c+1]<<8)+a[c+2];
c+=3,d.push(b.charAt(63&f>>18)),d.push(b.charAt(63&f>>12)),d.push(b.charAt(63&f>>6)),d.push(b.charAt(63&f))}if(2==a.length-c){var f=(a[c]<<16)+(a[c+1]<<8);
d.push(b.charAt(63&f>>18)),d.push(b.charAt(63&f>>12)),d.push(b.charAt(63&f>>6)),d.push("=")}else if(1==a.length-c){var f=a[c]<<16;
d.push(b.charAt(63&f>>18)),d.push(b.charAt(63&f>>12)),d.push("==")}return d.join("")},d=
function(){for(var a=[],c=0;
c
++c)a[b.charCodeAt(c)]=c;
return a["=".charCodeAt(0)]=0,a}(),g=
function(a){for(var b=0,c=[],e=0|a.length/4;
0
){var f=(d[a.charCodeAt(b)]<<18)+(d[a.charCodeAt(b+1)]<<12)+(d[a.charCodeAt(b+2)]<<6)+d[a.charCodeAt(b+3)];
c.push(255&f>>16),c.push(255&f>>8),c.push(255&f),b+=4}return c&&("="==a.charAt(b-2)?(c.pop(),c.pop()):"="==a.charAt(b-1)&&c.pop()),c},h={};
h.encode=
function(a){for(var b=[],c=0;
c
++c)b.push(a.charCodeAt(c));
return b},h.decode=
function(b){for(var c=0;
c
++c)a[c]=String.fromCharCode(a[c]);
return a.join("")},f.decodeArray=
function(a){var b=g(a);
return new Uint8Array(b)},f.encodeASCII=
function(a){var b=h.encode(a);
return c(b)},f.decodeASCII=
function(a){var b=g(a);
return h.decode(b)},f.encode=
function(a){var b=e.encode(a);
return c(b)},f.decode=
function(a){var b=g(a);
return e.decode(b)}}("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"),"undefined"!=typeof d&&(d.decode=f.decode,d.decodeArray=f.decodeArray,d.encode=f.encode)},{}],2:[
function(a,b,c){"use strict";
!
function(a){var b={42:225,92:233,94:237,95:243,96:250,123:231,124:247,125:209,126:241,127:9608,128:174,129:176,130:189,131:191,132:8482,133:162,134:163,135:9834,136:224,137:32,138:232,139:226,140:234,141:238,142:244,143:251,144:193,145:201,146:211,147:218,148:220,149:252,150:8216,151:161,152:42,153:8217,154:9473,155:169,156:8480,157:8226,158:8220,159:8221,160:192,161:194,162:199,163:200,164:202,165:203,166:235,167:206,168:207,169:239,170:212,171:217,172:249,173:219,174:171,175:187,176:195,177:227,178:205,179:204,180:236,181:210,182:242,183:213,184:245,185:123,186:125,187:92,188:94,189:95,190:124,191:8764,192:196,193:228,194:214,195:246,196:223,197:165,198:164,199:9475,200:197,201:229,202:216,203:248,204:9487,205:9491,206:9495,207:9499},c=
function(a){var c=a;
return b.hasOwnProperty(a)&&(c=b[a]),String.fromCharCode(c)},d=15,e=32,f={17:1,18:3,21:5,22:7,23:9,16:11,19:12,20:14},g={17:2,18:4,21:6,22:8,23:10,19:13,20:15},h={25:1,26:3,29:5,30:7,31:9,24:11,27:12,28:14},i={25:2,26:4,29:6,30:8,31:10,27:13,28:15},j=["white","green","blue","cyan","red","yellow","magenta","black","transparent"],k={verboseFilter:{DATA:3,DEBUG:3,INFO:2,WARNING:2,TEXT:1,ERROR:0},time:null,verboseLevel:0,setTime:
function(a){this.time=a},log:
function(a,b){var c=this.verboseFilter[a];
this.verboseLevel>=c&&console.log(this.time+" ["+a+"] "+b)}},l=
function(a){for(var b=[],c=0;
c
c++)b.push(a[c].toString(16));
return b},m=
function(a,b,c,d,e){this.foreground=a||"white",this.underline=b||!1,this.italics=c||!1,this.background=d||"black",this.flash=e||!1};
m.prototype={reset:
function(){this.foreground="white",this.underline=!1,this.italics=!1,this.background="black",this.flash=!1},setStyles:
function(a){for(var b=["foreground","underline","italics","background","flash"],c=0;
c
c++){var d=b[c];
a.hasOwnProperty(d)&&(this[d]=a[d])}},isDefault:
function(){return"white"===this.foreground&&!this.underline&&!this.italics&&"black"===this.background&&!this.flash},equals:
function(a){return this.foreground===a.foreground&&this.underline===a.underline&&this.italics===a.italics&&this.background===a.background&&this.flash===a.flash},copy:
function(a){this.foreground=a.foreground,this.underline=a.underline,this.italics=a.italics,this.background=a.background,this.flash=a.flash},toString:
function(){return"color="+this.foreground+", underline="+this.underline+", italics="+this.italics+", background="+this.background+", flash="+this.flash}};
var n=
function(a,b,c,d,e,f){this.uchar=a||" ",this.penState=new m(b,c,d,e,f)};
n.prototype={reset:
function(){this.uchar=" ",this.penState.reset()},setChar:
function(a,b){this.uchar=a,this.penState.copy(b)},setPenState:
function(a){this.penState.copy(a)},equals:
function(a){return this.uchar===a.uchar&&this.penState.equals(a.penState)},copy:
function(a){this.uchar=a.uchar,this.penState.copy(a.penState)},isEmpty:
function(){return" "===this.uchar&&this.penState.isDefault()}};
var o=
function(){this.chars=[];
for(var a=0;
a
a++)this.chars.push(new n);
this.pos=0,this.currPenState=new m};
o.prototype={equals:
function(a){for(var b=!0,c=0;
c
c++)if(!this.chars[c].equals(a.chars[c])){b=!1;
break}return b},copy:
function(a){for(var b=0;
b
b++)this.chars[b].copy(a.chars[b])},isEmpty:
function(){for(var a=!0,b=0;
b
b++)if(!this.chars[b].isEmpty()){a=!1;
break}return a},setCursor:
function(a){this.pos!==a&&(this.pos=a),this.pos<0?(k.log("ERROR","Negative cursor position "+this.pos),this.pos=0):this.pos>e&&(k.log("ERROR","Too large cursor position "+this.pos),this.pos=e)},moveCursor:
function(a){var b=this.pos+a;
if(a>1)for(var c=this.pos+1;
c
c++)this.chars[c].setPenState(this.currPenState);
this.setCursor(b)},backSpace:
function(){this.moveCursor(-1),this.chars[this.pos].setChar(" ",this.currPenState)},insertChar:
function(a){a>=144&&this.backSpace();
var b=c(a);
return this.pos>=e?void k.log("ERROR","Cannot insert "+a.toString(16)+" ("+b+") at position "+this.pos+". Skipping it!"):(this.chars[this.pos].setChar(b,this.currPenState),void this.moveCursor(1))},clearFromPos:
function(a){var b;
for(b=a;
b
b++)this.chars[b].reset()},clear:
function(){this.clearFromPos(0),this.pos=0,this.currPenState.reset()},clearToEndOfRow:
function(){this.clearFromPos(this.pos)},getTextString:
function(){for(var a=[],b=!0,c=0;
c
c++){var d=this.chars[c].uchar;
" "!==d&&(b=!1),a.push(d)}return b?"":a.join("")},setPenStyles:
function(a){this.currPenState.setStyles(a);
var b=this.chars[this.pos];
b.setPenState(this.currPenState)}};
var p=
function(){this.rows=[];
for(var a=0;
a
a++)this.rows.push(new o);
this.currRow=d-1,this.nrRollUpRows=null,this.reset()};
p.prototype={reset:
function(){for(var a=0;
a
a++)this.rows[a].clear();
this.currRow=d-1},equals:
function(a){for(var b=!0,c=0;
c
c++)if(!this.rows[c].equals(a.rows[c])){b=!1;
break}return b},copy:
function(a){for(var b=0;
b
b++)this.rows[b].copy(a.rows[b])},isEmpty:
function(){for(var a=!0,b=0;
b
b++)if(!this.rows[b].isEmpty()){a=!1;
break}return a},backSpace:
function(){var a=this.rows[this.currRow];
a.backSpace()},clearToEndOfRow:
function(){var a=this.rows[this.currRow];
a.clearToEndOfRow()},insertChar:
function(a){var b=this.rows[this.currRow];
b.insertChar(a)},setPen:
function(a){var b=this.rows[this.currRow];
b.setPenStyles(a)},moveCursor:
function(a){var b=this.rows[this.currRow];
b.moveCursor(a)},setCursor:
function(a){k.log("INFO","setCursor: "+a);
var b=this.rows[this.currRow];
b.setCursor(a)},setPAC:
function(a){k.log("INFO","pacData = "+JSON.stringify(a));
var b=a.row-1;
this.nrRollUpRows&&b
var c=this.rows[this.currRow];
if(null!==a.indent){var d=a.indent,e=Math.max(d-1,0);
c.setCursor(a.indent),a.color=c.chars[e].penState.foreground}var f={foreground:a.color,underline:a.underline,italics:a.italics,background:"black",flash:!1};
this.setPen(f)},setBkgData:
function(a){k.log("INFO","bkgData = "+JSON.stringify(a)),this.backSpace(),this.setPen(a),this.insertChar(32)},setRollUpRows:
function(a){this.nrRollUpRows=a},rollUp:
function(){if(null===this.nrRollUpRows)return void k.log("DEBUG","roll_up but nrRollUpRows not set yet");
k.log("TEXT",this.getDisplayText());
var a=this.currRow+1-this.nrRollUpRows,b=this.rows.splice(a,1)[0];
b.clear(),this.rows.splice(this.currRow,0,b),k.log("INFO","Rolling up")},getDisplayText:
function(a){a=a||!1;
for(var b=[],c="",e=-1,f=0;
f
f++){var g=this.rows[f].getTextString();
g&&(e=f+1,a?b.push("Row "+e+': "'+g+'"'):b.push(g.trim()))}return b.length>0&&(c=a?"["+b.join(" | ")+"]":b.join("\n")),c},getTextAndFormat:
function(){return this.rows}};
var q=
function(a,b){this.chNr=a,this.outputFilter=b,this.mode=null,this.verbose=0,this.displayedMemory=new p,this.nonDisplayedMemory=new p,this.lastOutputScreen=new p,this.currRollUpRow=this.displayedMemory.rows[d-1],this.writeScreen=this.displayedMemory,this.mode=null,this.cueStartTime=null};
q.prototype={modes:["MODE_ROLL-UP","MODE_POP-ON","MODE_PAINT-ON","MODE_TEXT"],reset:
function(){this.mode=null,this.displayedMemory.reset(),this.nonDisplayedMemory.reset(),this.lastOutputScreen.reset(),this.currRollUpRow=this.displayedMemory.rows[d-1],this.writeScreen=this.displayedMemory,this.mode=null,this.cueStartTime=null,this.lastCueEndTime=null},getHandler:
function(){return this.outputFilter},setHandler:
function(a){this.outputFilter=a},setPAC:
function(a){this.writeScreen.setPAC(a)},setBkgData:
function(a){this.writeScreen.setBkgData(a)},setMode:
function(a){a!==this.mode&&(this.mode=a,k.log("INFO","MODE="+a),"MODE_POP-ON"==this.mode?this.writeScreen=this.nonDisplayedMemory:(this.writeScreen=this.displayedMemory,this.writeScreen.reset()),"MODE_ROLL-UP"!==this.mode&&(this.displayedMemory.nrRollUpRows=null,this.nonDisplayedMemory.nrRollUpRows=null),this.mode=a)},insertChars:
function(a){for(var b=0;
b
b++)this.writeScreen.insertChar(a[b]);
var c=this.writeScreen===this.displayedMemory?"DISP":"NON_DISP";
k.log("INFO",c+": "+this.writeScreen.getDisplayText(!0)),"MODE_PAINT-ON"!==this.mode&&"MODE_ROLL-UP"!==this.mode||(k.log("TEXT","DISPLAYED: "+this.displayedMemory.getDisplayText(!0)),this.outputDataUpdate())},cc_RCL:
function(){k.log("INFO","RCL - Resume Caption Loading"),this.setMode("MODE_POP-ON")},cc_BS:
function(){k.log("INFO","BS - BackSpace"),"MODE_TEXT"!==this.mode&&(this.writeScreen.backSpace(),this.writeScreen===this.displayedMemory&&this.outputDataUpdate())},cc_AOF:
function(){},cc_AON:
function(){},cc_DER:
function(){k.log("INFO","DER- Delete to End of Row"),this.writeScreen.clearToEndOfRow(),this.outputDataUpdate()},cc_RU:
function(a){k.log("INFO","RU("+a+") - Roll Up"),this.writeScreen=this.displayedMemory,this.setMode("MODE_ROLL-UP"),this.writeScreen.setRollUpRows(a)},cc_FON:
function(){k.log("INFO","FON - Flash On"),this.writeScreen.setPen({flash:!0})},cc_RDC:
function(){k.log("INFO","RDC - Resume Direct Captioning"),this.setMode("MODE_PAINT-ON")},cc_TR:
function(){k.log("INFO","TR"),this.setMode("MODE_TEXT")},cc_RTD:
function(){k.log("INFO","RTD"),this.setMode("MODE_TEXT")},cc_EDM:
function(){k.log("INFO","EDM - Erase Displayed Memory"),this.displayedMemory.reset(),this.outputDataUpdate()},cc_CR:
function(){k.log("CR - Carriage Return"),this.writeScreen.rollUp(),this.outputDataUpdate()},cc_ENM:
function(){k.log("INFO","ENM - Erase Non-displayed Memory"),this.nonDisplayedMemory.reset()},cc_EOC:
function(){if(k.log("INFO","EOC - End Of Caption"),"MODE_POP-ON"===this.mode){var a=this.displayedMemory;
this.displayedMemory=this.nonDisplayedMemory,this.nonDisplayedMemory=a,this.writeScreen=this.nonDisplayedMemory,k.log("TEXT","DISP: "+this.displayedMemory.getDisplayText())}this.outputDataUpdate()},cc_TO:
function(a){k.log("INFO","TO("+a+") - Tab Offset"),this.writeScreen.moveCursor(a)},cc_MIDROW:
function(a){var b={flash:!1};
if(b.underline=a%2===1,b.italics=a>=46,b.italics)b.foreground="white";
else{var c=Math.floor(a/2)-16,d=["white","green","blue","cyan","red","yellow","magenta"];
b.foreground=d[c]}k.log("INFO","MIDROW: "+JSON.stringify(b)),this.writeScreen.setPen(b)},outputDataUpdate:
function(){var a=k.time;
null!==a&&this.outputFilter&&(this.outputFilter.updateData&&this.outputFilter.updateData(a,this.displayedMemory),null!==this.cueStartTime||this.displayedMemory.isEmpty()?this.displayedMemory.equals(this.lastOutputScreen)||(this.outputFilter.newCue&&this.outputFilter.newCue(this.cueStartTime,a,this.lastOutputScreen),this.cueStartTime=this.displayedMemory.isEmpty()?null:a):this.cueStartTime=a,this.lastOutputScreen.copy(this.displayedMemory))},cueSplitAtTime:
function(a){this.outputFilter&&(this.displayedMemory.isEmpty()||(this.outputFilter.newCue&&this.outputFilter.newCue(this.cueStartTime,a,this.displayedMemory),this.cueStartTime=a))}};
var r=
function(a,b,c){this.field=a||1,this.outputs=[b,c],this.channels=[new q(1,b),new q(2,c)],this.currChNr=-1,this.lastCmdA=null,this.lastCmdB=null,this.bufferedData=[],this.startTime=null,this.lastTime=null,this.dataCounters={padding:0,char:0,cmd:0,other:0}};
r.prototype={getHandler:
function(a){return this.channels[a].getHandler()},setHandler:
function(a,b){this.channels[a].setHandler(b)},addData:
function(a,b){var c,d,e,f=!1;
this.lastTime=a,k.setTime(a);
for(var g=0;
g
g+=2)if(d=127&b[g],e=127&b[g+1],d>=16&&d<=31&&d===this.lastCmdA&&e===this.lastCmdB)this.lastCmdA=null,this.lastCmdB=null,k.log("DEBUG","Repeated command ("+l([d,e])+") is dropped");
else if(0!==d||0!==e){if(k.log("DATA","["+l([b[g],b[g+1]])+"] -> ("+l([d,e])+")"),c=this.parseCmd(d,e),c||(c=this.parseMidrow(d,e)),c||(c=this.parsePAC(d,e)),c||(c=this.parseBackgroundAttributes(d,e)),!c&&(f=this.parseChars(d,e)))if(this.currChNr&&this.currChNr>=0){var h=this.channels[this.currChNr-1];
h.insertChars(f)}else k.log("WARNING","No channel found yet. TEXT-MODE?");
c?this.dataCounters.cmd+=2:f?this.dataCounters.char+=2:(this.dataCounters.other+=2,k.log("WARNING","Couldn't parse cleaned data "+l([d,e])+" orig: "+l([b[g],b[g+1]])))}else this.dataCounters.padding+=2},parseCmd:
function(a,b){var c=null,d=(20===a||21===a||28===a||29===a)&&32<=b&&b<=47,e=(23===a||31===a)&&33<=b&&b<=35;
if(!d&&!e)return!1;
c=20===a||21===a||23===a?1:2;
var f=this.channels[c-1];
return 20===a||21===a||28===a||29===a?32===b?f.cc_RCL():33===b?f.cc_BS():34===b?f.cc_AOF():35===b?f.cc_AON():36===b?f.cc_DER():37===b?f.cc_RU(2):38===b?f.cc_RU(3):39===b?f.cc_RU(4):40===b?f.cc_FON():41===b?f.cc_RDC():42===b?f.cc_TR():43===b?f.cc_RTD():44===b?f.cc_EDM():45===b?f.cc_CR():46===b?f.cc_ENM():47===b&&f.cc_EOC():f.cc_TO(b-32),this.lastCmdA=a,this.lastCmdB=b,this.currChNr=c,!0},parseMidrow:
function(a,b){var c=null;
if((17===a||25===a)&&32<=b&&b<=47){if(c=17===a?1:2,c!==this.currChNr)return k.log("ERROR","Mismatch channel in midrow parsing"),!1;
var d=this.channels[c-1];
return d.insertChars([32]),d.cc_MIDROW(b),k.log("DEBUG","MIDROW ("+l([a,b])+")"),this.lastCmdA=a,this.lastCmdB=b,!0}return!1},parsePAC:
function(a,b){var c=null,d=null,e=(17<=a&&a<=23||25<=a&&a<=31)&&64<=b&&b<=127,j=(16===a||24===a)&&64<=b&&b<=95;
if(!e&&!j)return!1;
c=a<=23?1:2,d=64<=b&&b<=95?1===c?f[a]:h[a]:1===c?g[a]:i[a];
var k=this.interpretPAC(d,b),l=this.channels[c-1];
return l.setPAC(k),this.lastCmdA=a,this.lastCmdB=b,this.currChNr=c,!0},interpretPAC:
function(a,b){var c=b,d={color:null,italics:!1,indent:null,underline:!1,row:a};
return c=b>95?b-96:b-64,d.underline=1===(1&c),c<=13?d.color=["white","green","blue","cyan","red","yellow","magenta","white"][Math.floor(c/2)]:c<=15?(d.italics=!0,d.color="white"):d.indent=4*Math.floor((c-16)/2),d},parseChars:
function(a,b){var d=null,e=null,f=null;
if(a>=25?(d=2,f=a-8):(d=1,f=a),17<=f&&f<=19){var g=b;
g=17===f?b+80:18===f?b+112:b+144,k.log("INFO","Special char '"+c(g)+"' in channel "+d),e=[g],this.lastCmdA=a,this.lastCmdB=b}else 32<=a&&a<=127&&(e=0===b?[a]:[a,b],this.lastCmdA=null,this.lastCmdB=null);
if(e){var h=l(e);
k.log("DEBUG","Char codes = "+h.join(","))}return e},parseBackgroundAttributes:
function(a,b){var c,d,e,f,g=(16===a||24===a)&&32<=b&&b<=47,h=(23===a||31===a)&&45<=b&&b<=47;
return!(!g&&!h)&&(c={},16===a||24===a?(d=Math.floor((b-32)/2),c.background=j[d],b%2===1&&(c.background=c.background+"_semi")):45===b?c.background="transparent":(c.foreground="black",47===b&&(c.underline=!0)),e=a<24?1:2,f=this.channels[e-1],f.setBkgData(c),this.lastCmdA=a,this.lastCmdB=b,!0)},reset:
function(){for(var a=0;
a
a++)this.channels[a]&&this.channels[a].reset();
this.lastCmdA=null,this.lastCmdB=null},cueSplitAtTime:
function(a){for(var b=0;
b
b++)this.channels[b]&&this.channels[b].cueSplitAtTime(a)}};
var s=
function(a,b,c){for(var d=0,e=b,f=0,g=[],h=
function(a,b,c,d){if(4!==a||b<8)return null;
var e=c.getUint8(d),f=c.getUint16(d+1),g=c.getUint32(d+3),h=c.getUint8(d+7);
return 181==e&&49==f&&1195456820==g&&3==h};
e
){if(d=a.getUint32(e),f=31&a.getUint8(e+4),6===f)for(var i=e+5,j=-1;
i
){j=0;
for(var k=255;
255===k;
)k=a.getUint8(i),j+=k,i++;
var l=0;
for(k=255;
255===k;
)k=a.getUint8(i),l+=k,i++;
h(j,l,a,i)&&g.push([i,l]),i+=l}e+=d+4}return g},t=
function(a,b){var c=b[0],d=[[],[]];
c+=8;
var e=31&a.getUint8(c);
c+=2;
for(var f=0;
f
f++){var g=a.getUint8(c),h=4&g,i=3&g;
c++;
var j=a.getUint8(c);
c++;
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e
){var f=a.getUint8(e++);
f<128||(f<224?(f=(31&f)<<6,f|=63&a.getUint8(e++)):f<240?(f=(15&f)<<12,f|=(63&a.getUint8(e++))<<6,f|=63&a.getUint8(e++)):(f=(7&f)<<18,f|=(63&a.getUint8(e++))<<12,f|=(63&a.getUint8(e++))<<6,f|=63&a.getUint8(e++))),d.push(String.fromCharCode(f))}else for(;
e
)d.push(String.fromCharCode(a.getUint8(e++)));
return d.join("")},d.Utils.utf8ToByteArray=
function(a){var b,c;
if("undefined"!=typeof TextEncoder)b=(new TextEncoder).encode(a);
else for(b=[],c=0;
c
++c){var d=a.charCodeAt(c);
d<128?b.push(d):d<2048?(b.push(192|d>>6),b.push(128|63&d)):d<65536?(b.push(224|d>>12),b.push(128|63&d>>6),b.push(128|63&d)):(b.push(240|d>>18),b.push(128|63&d>>12),b.push(128|63&d>>6),b.push(128|63&d))}return b},d.Utils.appendBox=
function(a,b,c){if(b._offset=a._cursor.offset,b._root=a._root?a._root:a,b._raw=a._raw,b._parent=a,c!==-1){if(void 0===c||null===c)return void a.boxes.push(b);
var d,e=-1;
if("number"==typeof c)e=c;
else{if("string"==typeof c)d=c;
else{if("object"!=typeof c||!c.type)return void a.boxes.push(b);
d=c.type}for(var f=0;
f
f++)if(d===a.boxes[f].type){e=f+1;
break}}a.boxes.splice(e,0,b)}},"undefined"!=typeof c&&(c.parseBuffer=d.parseBuffer,c.addBoxProcessor=d.addBoxProcessor,c.createFile=d.createFile,c.createBox=d.createBox,c.createFullBox=d.createFullBox,c.Utils=d.Utils),d.Cursor=
function(a){this.offset="undefined"==typeof a?0:a};
var e=
function(a){this._cursor=new d.Cursor,this.boxes=[],a&&(this._raw=new DataView(a))};
e.prototype.fetch=
function(a){var b=this.fetchAll(a,!0);
return b.length?b[0]:null},e.prototype.fetchAll=
function(a,b){var c=[];
return e._sweep.call(this,a,c,b),c},e.prototype.parse=
function(){for(this._cursor.offset=0,this.boxes=[];
this._cursor.offset
){var a=f.parse(this);
if("undefined"==typeof a.type)break;
this.boxes.push(a)}return this},e._sweep=
function(a,b,c){this.type&&this.type==a&&b.push(this);
for(var d in this.boxes){if(b.length&&c)return;
e._sweep.call(this.boxes[d],a,b,c)}},e.prototype.write=
function(){var a,b=0;
for(a=0;
a
a++)b+=this.boxes[a].getLength(!1);
var c=new Uint8Array(b);
for(this._rawo=new DataView(c.buffer),this.bytes=c,this._cursor.offset=0,a=0;
a
a++)this.boxes[a].write();
return c.buffer},e.prototype.append=
function(a,b){d.Utils.appendBox(this,a,b)};
var f=
function(){this._cursor=new d.Cursor};
f.parse=
function(a){var b=new f;
return b._offset=a._cursor.offset,b._root=a._root?a._root:a,b._raw=a._raw,b._parent=a,b._parseBox(),a._cursor.offset=b._raw.byteOffset+b._raw.byteLength,b},f.create=
function(a){var b=new f;
return b.type=a,b.boxes=[],b},f.prototype._boxContainers=["dinf","edts","mdia","meco","mfra","minf","moof","moov","mvex","stbl","strk","traf","trak","tref","udta","vttc","sinf","schi","encv","enca"],f.prototype._boxProcessors={},f.prototype._procField=
function(a,b,c){this._parsing?this[a]=this._readField(b,c):this._writeField(b,c,this[a])},f.prototype._procFieldArray=
function(a,b,c,d){var e;
if(this._parsing)for(this[a]=[],e=0;
e
e++)this[a][e]=this._readField(c,d);
else for(e=0;
e
e++)this._writeField(c,d,this[a][e])},f.prototype._procFullBox=
function(){this._procField("version","uint",8),this._procField("flags","uint",24)},f.prototype._procEntries=
function(a,b,c){var d;
if(this._parsing)for(this[a]=[],d=0;
d
d++)this[a].push({}),c.call(this,this[a][d]);
else for(d=0;
d
d++)c.call(this,this[a][d])},f.prototype._procSubEntries=
function(a,b,c,d){var e;
if(this._parsing)for(a[b]=[],e=0;
e
e++)a[b].push({}),d.call(this,a[b][e]);
else for(e=0;
e
e++)d.call(this,a[b][e])},f.prototype._procEntryField=
function(a,b,c,d){this._parsing?a[b]=this._readField(c,d):this._writeField(c,d,a[b])},f.prototype._procSubBoxes=
function(a,b){var c;
if(this._parsing)for(this[a]=[],c=0;
c
c++)this[a].push(f.parse(this));
else for(c=0;
c
c++)this._rawo?this[a][c].write():this.size+=this[a][c].getLength()},f.prototype._readField=
function(a,b){switch(a){case"uint":return this._readUint(b);
case"int":return this._readInt(b);
case"template":return this._readTemplate(b);
case"string":return b===-1?this._readTerminatedString():this._readString(b);
case"data":return this._readData(b);
case"utf8":return this._readUTF8String();
default:return-1}},f.prototype._readInt=
function(a){var b=null,c=this._cursor.offset-this._raw.byteOffset;
switch(a){case 8:b=this._raw.getInt8(c);
break;
case 16:b=this._raw.getInt16(c);
break;
case 32:b=this._raw.getInt32(c);
break;
case 64:var d=this._raw.getInt32(c),e=this._raw.getInt32(c+4);
b=d*Math.pow(2,32)+e}return this._cursor.offset+=a>>3,b},f.prototype._readUint=
function(a){var b,c,d=null,e=this._cursor.offset-this._raw.byteOffset;
switch(a){case 8:d=this._raw.getUint8(e);
break;
case 16:d=this._raw.getUint16(e);
break;
case 24:b=this._raw.getUint16(e),c=this._raw.getUint8(e+2),d=(b<<8)+c;
break;
case 32:d=this._raw.getUint32(e);
break;
case 64:b=this._raw.getUint32(e),c=this._raw.getUint32(e+4),d=b*Math.pow(2,32)+c}return this._cursor.offset+=a>>3,d},f.prototype._readString=
function(a){for(var b="",c=0;
c
c++){var d=this._readUint(8);
b+=String.fromCharCode(d)}return b},f.prototype._readTemplate=
function(a){var b=this._readUint(a/2),c=this._readUint(a/2);
return b+c/Math.pow(2,a/2)},f.prototype._readTerminatedString=
function(){for(var a="";
this._cursor.offset-this._offset
){var b=this._readUint(8);
if(0===b)break;
a+=String.fromCharCode(b)}return a},f.prototype._readData=
function(a){var b=a>0?a:this._raw.byteLength-(this._cursor.offset-this._offset),c=new DataView(this._raw.buffer,this._cursor.offset,b);
return this._cursor.offset+=b,c},f.prototype._readUTF8String=
function(){var a=this._readData();
return d.Utils.dataViewToString(a)},f.prototype._parseBox=
function(){if(this._parsing=!0,this._cursor.offset=this._offset,this._offset+8>this._raw.buffer.byteLength)return void(this._root._incomplete=!0);
switch(this._procField("size","uint",32),this._procField("type","string",4),1===this.size&&this._procField("largesize","uint",64),"uuid"===this.type&&this._procFieldArray("usertype",16,"uint",8),this.size){case 0:this._raw=new DataView(this._raw.buffer,this._offset,this._raw.byteLength-this._cursor.offset+8);
break;
case 1:this._offset+this.size>this._raw.buffer.byteLength?(this._incomplete=!0,this._root._incomplete=!0):this._raw=new DataView(this._raw.buffer,this._offset,this.largesize);
break;
default:this._offset+this.size>this._raw.buffer.byteLength?(this._incomplete=!0,this._root._incomplete=!0):this._raw=new DataView(this._raw.buffer,this._offset,this.size)}this._incomplete||(this._boxProcessors[this.type]&&this._boxProcessors[this.type].call(this),this._boxContainers.indexOf(this.type)!==-1?this._parseContainerBox():this._data=this._readData())},f.prototype._parseFullBox=
function(){this.version=this._readUint(8),this.flags=this._readUint(24)},f.prototype._parseContainerBox=
function(){for(this.boxes=[];
this._cursor.offset-this._raw.byteOffset
)this.boxes.push(f.parse(this))},f.prototype.append=
function(a,b){d.Utils.appendBox(this,a,b)},f.prototype.getLength=
function(){if(this._parsing=!1,this._rawo=null,this.size=0,this._procField("size","uint",32),this._procField("type","string",4),1===this.size&&this._procField("largesize","uint",64),"uuid"===this.type&&this._procFieldArray("usertype",16,"uint",8),this._boxProcessors[this.type]&&this._boxProcessors[this.type].call(this),this._boxContainers.indexOf(this.type)!==-1)for(var a=0;
a
a++)this.size+=this.boxes[a].getLength();
return this._data&&this._writeData(this._data),this.size},f.prototype.write=
function(){switch(this._parsing=!1,this._cursor.offset=this._parent._cursor.offset,this.size){case 0:this._rawo=new DataView(this._parent._rawo.buffer,this._cursor.offset,this.parent._rawo.byteLength-this._cursor.offset);
break;
case 1:this._rawo=new DataView(this._parent._rawo.buffer,this._cursor.offset,this.largesize);
break;
default:this._rawo=new DataView(this._parent._rawo.buffer,this._cursor.offset,this.size)}if(this._procField("size","uint",32),this._procField("type","string",4),1===this.size&&this._procField("largesize","uint",64),"uuid"===this.type&&this._procFieldArray("usertype",16,"uint",8),this._boxProcessors[this.type]&&this._boxProcessors[this.type].call(this),this._boxContainers.indexOf(this.type)!==-1)for(var a=0;
a
a++)this.boxes[a].write();
return this._data&&this._writeData(this._data),this._parent._cursor.offset+=this.size,this.size},f.prototype._writeInt=
function(a,b){if(this._rawo){var c=this._cursor.offset-this._rawo.byteOffset;
switch(a){case 8:this._rawo.setInt8(c,b);
break;
case 16:this._rawo.setInt16(c,b);
break;
case 32:this._rawo.setInt32(c,b);
break;
case 64:var d=Math.floor(b/Math.pow(2,32)),e=b-d*Math.pow(2,32);
this._rawo.setUint32(c,d),this._rawo.setUint32(c+4,e)}this._cursor.offset+=a>>3}else this.size+=a>>3},f.prototype._writeUint=
function(a,b){if(this._rawo){var c,d,e=this._cursor.offset-this._rawo.byteOffset;
switch(a){case 8:this._rawo.setUint8(e,b);
break;
case 16:this._rawo.setUint16(e,b);
break;
case 24:c=(16776960&b)>>8,d=255&b,this._rawo.setUint16(e,c),this._rawo.setUint8(e+2,d);
break;
case 32:this._rawo.setUint32(e,b);
break;
case 64:c=Math.floor(b/Math.pow(2,32)),d=b-c*Math.pow(2,32),this._rawo.setUint32(e,c),this._rawo.setUint32(e+4,d)}this._cursor.offset+=a>>3}else this.size+=a>>3},f.prototype._writeString=
function(a,b){for(var c=0;
c
c++)this._writeUint(8,b.charCodeAt(c))},f.prototype._writeTerminatedString=
function(a){if(0!==a.length){for(var b=0;
b
b++)this._writeUint(8,a.charCodeAt(b));
this._writeUint(8,0)}},f.prototype._writeTemplate=
function(a,b){var c=Math.floor(b),d=(b-c)*Math.pow(2,a/2);
this._writeUint(a/2,c),this._writeUint(a/2,d)},f.prototype._writeData=
function(a){var b;
if(a instanceof Array)if(Uint8Array.from)a=new DataView(Uint8Array.from(a).buffer);
else{var c=new Uint8Array(a.length);
for(b=0;
b
b++)c[b]=a[b];
a=new DataView(c.buffer)}if(a instanceof Uint8Array&&(a=new DataView(a.buffer)),this._rawo){var d=this._cursor.offset-this._rawo.byteOffset;
for(b=0;
b
b++)this._rawo.setUint8(d+b,a.getUint8(b));
this._cursor.offset+=a.byteLength}else this.size+=a.byteLength},f.prototype._writeUTF8String=
function(a){var b=d.Utils.utf8ToByteArray(a);
if(this._rawo)for(var c=new DataView(this._rawo.buffer,this._cursor.offset,b.length),e=0;
e
e++)c.setUint8(e,b[e]);
else this.size+=b.length},f.prototype._writeField=
function(a,b,c){switch(a){case"uint":this._writeUint(b,c);
break;
case"int":this._writeInt(b,c);
break;
case"template":this._writeTemplate(b,c);
break;
case"string":b==-1?this._writeTerminatedString(c):this._writeString(b,c);
break;
case"data":this._writeData(c);
break;
case"utf8":this._writeUTF8String(c)}},f.prototype._boxProcessors.avc1=f.prototype._boxProcessors.encv=
function(){this._procFieldArray("reserved1",6,"uint",8),this._procField("data_reference_index","uint",16),this._procField("pre_defined1","uint",16),this._procField("reserved2","uint",16),this._procFieldArray("pre_defined2",3,"uint",32),this._procField("width","uint",16),this._procField("height","uint",16),this._procField("horizresolution","template",32),this._procField("vertresolution","template",32),this._procField("reserved3","uint",32),this._procField("frame_count","uint",16),this._procFieldArray("compressorname",32,"uint",8),this._procField("depth","uint",16),this._procField("pre_defined3","int",16),this._procField("config","data",-1)},f.prototype._boxProcessors.dref=
function(){this._procFullBox(),this._procField("entry_count","uint",32),this._procSubBoxes("entries",this.entry_count)},f.prototype._boxProcessors.elst=
function(){this._procFullBox(),this._procField("entry_count","uint",32),this._procEntries("entries",this.entry_count,
function(a){this._procEntryField(a,"segment_duration","uint",1===this.version?64:32),this._procEntryField(a,"media_time","int",1===this.version?64:32),this._procEntryField(a,"media_rate_integer","int",16),this._procEntryField(a,"media_rate_fraction","int",16)})},f.prototype._boxProcessors.emsg=
function(){this._procFullBox(),this._procField("scheme_id_uri","string",-1),this._procField("value","string",-1),this._procField("timescale","uint",32),this._procField("presentation_time_delta","uint",32),this._procField("event_duration","uint",32),this._procField("id","uint",32),this._procField("message_data","data",-1)},f.prototype._boxProcessors.free=f.prototype._boxProcessors.skip=
function(){this._procField("data","data",-1)},f.prototype._boxProcessors.frma=
function(){this._procField("data_format","uint",32)},f.prototype._boxProcessors.ftyp=f.prototype._boxProcessors.styp=
function(){this._procField("major_brand","string",4),this._procField("minor_version","uint",32);
var a=-1;
this._parsing&&(a=(this._raw.byteLength-(this._cursor.offset-this._raw.byteOffset))/4),this._procFieldArray("compatible_brands",a,"string",4)},f.prototype._boxProcessors.hdlr=
function(){this._procFullBox(),this._procField("pre_defined","uint",32),this._procField("handler_type","string",4),this._procFieldArray("reserved",3,"uint",32),this._procField("name","string",-1)},f.prototype._boxProcessors.mdat=
function(){this._procField("data","data",-1)},f.prototype._boxProcessors.mdhd=
function(){this._procFullBox(),this._procField("creation_time","uint",1==this.version?64:32),this._procField("modification_time","uint",1==this.version?64:32),this._procField("timescale","uint",32),this._procField("duration","uint",1==this.version?64:32),this._parsing||"string"!=typeof this.language||(this.language=this.language.charCodeAt(0)-96<<10|this.language.charCodeAt(1)-96<<5|this.language.charCodeAt(2)-96),this._procField("language","uint",16),this._parsing&&(this.language=String.fromCharCode((this.language>>10&31)+96,(this.language>>5&31)+96,(31&this.language)+96)),this._procField("pre_defined","uint",16);
},f.prototype._boxProcessors.mehd=
function(){this._procFullBox(),this._procField("fragment_duration","uint",1==this.version?64:32)},f.prototype._boxProcessors.mfhd=
function(){this._procFullBox(),this._procField("sequence_number","uint",32)},f.prototype._boxProcessors.mfro=
function(){this._procFullBox(),this._procField("mfra_size","uint",32)},f.prototype._boxProcessors.mp4a=f.prototype._boxProcessors.enca=
function(){this._procFieldArray("reserved1",6,"uint",8),this._procField("data_reference_index","uint",16),this._procFieldArray("reserved2",2,"uint",32),this._procField("channelcount","uint",16),this._procField("samplesize","uint",16),this._procField("pre_defined","uint",16),this._procField("reserved3","uint",16),this._procField("samplerate","template",32),this._procField("esds","data",-1)},f.prototype._boxProcessors.mvhd=
function(){this._procFullBox(),this._procField("creation_time","uint",1==this.version?64:32),this._procField("modification_time","uint",1==this.version?64:32),this._procField("timescale","uint",32),this._procField("duration","uint",1==this.version?64:32),this._procField("rate","template",32),this._procField("volume","template",16),this._procField("reserved1","uint",16),this._procFieldArray("reserved2",2,"uint",32),this._procFieldArray("matrix",9,"template",32),this._procFieldArray("pre_defined",6,"uint",32),this._procField("next_track_ID","uint",32)},f.prototype._boxProcessors.payl=
function(){this._procField("cue_text","utf8")},f.prototype._boxProcessors.pssh=
function(){this._procFullBox(),this._procFieldArray("SystemID",16,"uint",8),this._procField("DataSize","uint",32),this._procFieldArray("Data",this.DataSize,"uint",8)},f.prototype._boxProcessors.schm=
function(){this._procFullBox(),this._procField("scheme_type","uint",32),this._procField("scheme_version","uint",32),1&this.flags&&this._procField("scheme_uri","string",-1)},f.prototype._boxProcessors.sdtp=
function(){this._procFullBox();
var a=-1;
this._parsing&&(a=this._raw.byteLength-(this._cursor.offset-this._raw.byteOffset)),this._procFieldArray("sample_dependency_table",a,"uint",8)},f.prototype._boxProcessors.sidx=
function(){this._procFullBox(),this._procField("reference_ID","uint",32),this._procField("timescale","uint",32),this._procField("earliest_presentation_time","uint",1==this.version?64:32),this._procField("first_offset","uint",1==this.version?64:32),this._procField("reserved","uint",16),this._procField("reference_count","uint",16),this._procEntries("references",this.reference_count,
function(a){this._parsing||(a.reference=(1&a.reference_type)<<31,a.reference|=2147483647&a.referenced_size,a.sap=(1&a.starts_with_SAP)<<31,a.sap|=(3&a.SAP_type)<<28,a.sap|=268435455&a.SAP_delta_time),this._procEntryField(a,"reference","uint",32),this._procEntryField(a,"subsegment_duration","uint",32),this._procEntryField(a,"sap","uint",32),this._parsing&&(a.reference_type=a.reference>>31&1,a.referenced_size=2147483647&a.reference,a.starts_with_SAP=a.sap>>31&1,a.SAP_type=a.sap>>28&7,a.SAP_delta_time=268435455&a.sap)})},f.prototype._boxProcessors.smhd=
function(){this._procFullBox(),this._procField("balance","uint",16),this._procField("reserved","uint",16)},f.prototype._boxProcessors.ssix=
function(){this._procFullBox(),this._procField("subsegment_count","uint",32),this._procEntries("subsegments",this.subsegment_count,
function(a){this._procEntryField(a,"ranges_count","uint",32),this._procSubEntries(a,"ranges",a.ranges_count,
function(a){this._procEntryField(a,"level","uint",8),this._procEntryField(a,"range_size","uint",24)})})},f.prototype._boxProcessors.stsd=
function(){this._procFullBox(),this._procField("entry_count","uint",32),this._procSubBoxes("entries",this.entry_count)},f.prototype._boxProcessors.subs=
function(){this._procFullBox(),this._procField("entry_count","uint",32),this._procEntries("entries",this.entry_count,
function(a){this._procEntryField(a,"sample_delta","uint",32),this._procEntryField(a,"subsample_count","uint",16),this._procSubEntries(a,"subsamples",a.subsample_count,
function(a){this._procEntryField(a,"subsample_size","uint",1===this.version?32:16),this._procEntryField(a,"subsample_priority","uint",8),this._procEntryField(a,"discardable","uint",8),this._procEntryField(a,"codec_specific_parameters","uint",32)})})},f.prototype._boxProcessors.tenc=
function(){this._procFullBox(),this._procField("default_IsEncrypted","uint",24),this._procField("default_IV_size","uint",8),this._procFieldArray("default_KID",16,"uint",8)},f.prototype._boxProcessors.tfdt=
function(){this._procFullBox(),this._procField("baseMediaDecodeTime","uint",1==this.version?64:32)},f.prototype._boxProcessors.tfhd=
function(){this._procFullBox(),this._procField("track_ID","uint",32),1&this.flags&&this._procField("base_data_offset","uint",64),2&this.flags&&this._procField("sample_description_offset","uint",32),8&this.flags&&this._procField("default_sample_duration","uint",32),16&this.flags&&this._procField("default_sample_size","uint",32),32&this.flags&&this._procField("default_sample_flags","uint",32)},f.prototype._boxProcessors.tfra=
function(){this._procFullBox(),this._procField("track_ID","uint",32),this._parsing||(this.reserved=0,this.reserved|=(48&this.length_size_of_traf_num)<<4,this.reserved|=(12&this.length_size_of_trun_num)<<2,this.reserved|=3&this.length_size_of_sample_num),this._procField("reserved","uint",32),this._parsing&&(this.length_size_of_traf_num=(48&this.reserved)>>4,this.length_size_of_trun_num=(12&this.reserved)>>2,this.length_size_of_sample_num=3&this.reserved),this._procField("number_of_entry","uint",32),this._procEntries("entries",this.number_of_entry,
function(a){this._procEntryField(a,"time","uint",1===this.version?64:32),this._procEntryField(a,"moof_offset","uint",1===this.version?64:32),this._procEntryField(a,"traf_number","uint",8*(this.length_size_of_traf_num+1)),this._procEntryField(a,"trun_number","uint",8*(this.length_size_of_trun_num+1)),this._procEntryField(a,"sample_number","uint",8*(this.length_size_of_sample_num+1))})},f.prototype._boxProcessors.tkhd=
function(){this._procFullBox(),this._procField("creation_time","uint",1==this.version?64:32),this._procField("modification_time","uint",1==this.version?64:32),this._procField("track_ID","uint",32),this._procField("reserved1","uint",32),this._procField("duration","uint",1==this.version?64:32),this._procFieldArray("reserved2",2,"uint",32),this._procField("layer","uint",16),this._procField("alternate_group","uint",16),this._procField("volume","template",16),this._procField("reserved3","uint",16),this._procFieldArray("matrix",9,"template",32),this._procField("width","template",32),this._procField("height","template",32)},f.prototype._boxProcessors.trex=
function(){this._procFullBox(),this._procField("track_ID","uint",32),this._procField("default_sample_description_index","uint",32),this._procField("default_sample_duration","uint",32),this._procField("default_sample_size","uint",32),this._procField("default_sample_flags","uint",32)},f.prototype._boxProcessors.trun=
function(){this._procFullBox(),this._procField("sample_count","uint",32),1&this.flags&&this._procField("data_offset","int",32),4&this.flags&&this._procField("first_sample_flags","uint",32),this._procEntries("samples",this.sample_count,
function(a){256&this.flags&&this._procEntryField(a,"sample_duration","uint",32),512&this.flags&&this._procEntryField(a,"sample_size","uint",32),1024&this.flags&&this._procEntryField(a,"sample_flags","uint",32),2048&this.flags&&this._procEntryField(a,"sample_composition_time_offset",1===this.version?"int":"uint",32)})},f.prototype._boxProcessors["url "]=f.prototype._boxProcessors["urn "]=
function(){this._procFullBox(),"urn "===this.type&&this._procField("name","string",-1),this._procField("location","string",-1)},f.prototype._boxProcessors.vlab=
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function(){this._procFullBox(),this._procField("graphicsmode","uint",16),this._procFieldArray("opcolor",3,"uint",16)},f.prototype._boxProcessors.vttC=
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function m(a){return"[object Date]"===q(a)}
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function o(a){return"
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function d(){this._events=this._events||{},this._maxListeners=this._maxListeners||void 0}
function e(a){return"
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function f(a){return"number"==typeof a}
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case 2:c.call(this,arguments[1]);
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function g(){this.events=[],this.head=null,this.body=null}
function h(){this.styling=null,this.layout=null}
function i(){this.styles={}}
function j(){this.id=null,this.styleAttrs=null,this.styleRefs=null}
function k(){this.regions={}}
function l(a){this.kind=a,this.begin=null,this.end=null,this.styleAttrs=null,this.regionID=null,this.sets=null,this.timeContainer=null}
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function o(){l.call(this,"p")}
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function s(){this.id=null,this.begin=null,this.end=null,this.styleAttrs=null,this.sets=null}
function t(){this.begin=null,this.end=null,this.qname=null,this.value=null}
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function v(a){return a&&"region"in a.attributes?a.attributes.region.value:""}
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function A(a,b){var d=z(a,c.ns_ittp,"aspectRatio"),e=null;
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function B(a,b){var d=z(a,c.ns_ttp,"cellResolution"),e=15,f=32;
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function C(a,b){var d,e=z(a,c.ns_ttp,"frameRate"),f=30;
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function F(a,b,c,d){var e=b&&"seq"===b.timeContainer,f=0;
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w.shift(),v.shift(),u.shift()},l.ontext=
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