dashjs
Version:
A reference client implementation for the playback of MPEG DASH via Javascript and compliant browsers.
2 lines • 585 kB
JavaScript
/*! v3.0.0-b90898e8, 2019-06-29T00:45:00Z */
!function a(o,s,u){function l(t,e){if(!s[t]){if(!o[t]){var n="function"==typeof require&&require;if(!e&&n)return n(t,!0);if(f)return f(t,!0);var r=new Error("Cannot find module '"+t+"'");throw r.code="MODULE_NOT_FOUND",r}var i=s[t]={exports:{}};o[t][0].call(i.exports,function(e){return l(o[t][1][e]||e)},i,i.exports,a,o,s,u)}return s[t].exports}for(var f="function"==typeof require&&require,e=0;e<u.length;e++)l(u[e]);return l}({1:[function(e,t,n){"use strict";var o,u,r,i={encode:function(e){for(var t=[],n=0;n<e.length;++n){var r=e.charCodeAt(n);r<128?t.push(r):(r<2048?t.push(192|r>>6):(r<65536?t.push(224|r>>12):(t.push(240|r>>18),t.push(128|63&r>>12)),t.push(128|63&r>>6)),t.push(128|63&r))}return t},decode:function(e){for(var t=[],n=0;n<e.length;){var r=e[n++];r<128||(r<224?r=(31&r)<<6:(r<240?r=(15&r)<<12:(r=(7&r)<<18,r|=(63&e[n++])<<12),r|=(63&e[n++])<<6),r|=63&e[n++]),t.push(String.fromCharCode(r))}return t.join("")}},l={};function f(e){for(var t=0,n=[],r=0|e.length/3;0<r--;){var i=(e[t]<<16)+(e[t+1]<<8)+e[t+2];t+=3,n.push(o.charAt(63&i>>18)),n.push(o.charAt(63&i>>12)),n.push(o.charAt(63&i>>6)),n.push(o.charAt(63&i))}if(2==e.length-t){i=(e[t]<<16)+(e[t+1]<<8);n.push(o.charAt(63&i>>18)),n.push(o.charAt(63&i>>12)),n.push(o.charAt(63&i>>6)),n.push("=")}else if(1==e.length-t){i=e[t]<<16;n.push(o.charAt(63&i>>18)),n.push(o.charAt(63&i>>12)),n.push("==")}return n.join("")}function d(e){for(var t=0,n=[],r=0|e.length/4;0<r--;){var i=(u[e.charCodeAt(t)]<<18)+(u[e.charCodeAt(t+1)]<<12)+(u[e.charCodeAt(t+2)]<<6)+u[e.charCodeAt(t+3)];n.push(255&i>>16),n.push(255&i>>8),n.push(255&i),t+=4}return n&&("="==e.charAt(t-2)?(n.pop(),n.pop()):"="==e.charAt(t-1)&&n.pop()),n}o="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",u=function(){for(var e=[],t=0;t<o.length;++t)e[o.charCodeAt(t)]=t;return e["=".charCodeAt(0)]=0,e}(),r={encode:function(e){for(var t=[],n=0;n<e.length;++n)t.push(e.charCodeAt(n));return t},decode:function(e){for(var t=0;t<s.length;++t)a[t]=String.fromCharCode(a[t]);return a.join("")}},l.decodeArray=function(e){var t=d(e);return new Uint8Array(t)},l.encodeASCII=function(e){var t=r.encode(e);return f(t)},l.decodeASCII=function(e){var t=d(e);return r.decode(t)},l.encode=function(e){var t=i.encode(e);return f(t)},l.decode=function(e){var t=d(e);return i.decode(t)},void 0!==n&&(n.decode=l.decode,n.decodeArray=l.decodeArray,n.encode=l.encode,n.encodeASCII=l.encodeASCII)},{}],2:[function(e,t,n){"use strict";!function(e){function s(e){var t=e;return n.hasOwnProperty(e)&&(t=n[e]),String.fromCharCode(t)}function u(e){for(var t=[],n=0;n<e.length;n++)t.push(e[n].toString(16));return t}function o(e,t,n,r,i){this.foreground=e||"white",this.underline=t||!1,this.italics=n||!1,this.background=r||"black",this.flash=i||!1}var n={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},a={17:1,18:3,21:5,22:7,23:9,16:11,19:12,20:14},l={17:2,18:4,21:6,22:8,23:10,19:13,20:15},f={25:1,26:3,29:5,30:7,31:9,24:11,27:12,28:14},d={25:2,26:4,29:6,30:8,31:10,27:13,28:15},c=["white","green","blue","cyan","red","yellow","magenta","black","transparent"],h={verboseFilter:{DATA:3,DEBUG:3,INFO:2,WARNING:2,TEXT:1,ERROR:0},time:null,verboseLevel:0,setTime:function(e){this.time=e},log:function(e,t){var n=this.verboseFilter[e];this.verboseLevel>=n&&console.log(this.time+" ["+e+"] "+t)}};o.prototype={reset:function(){this.foreground="white",this.underline=!1,this.italics=!1,this.background="black",this.flash=!1},setStyles:function(e){for(var t=["foreground","underline","italics","background","flash"],n=0;n<t.length;n++){var r=t[n];e.hasOwnProperty(r)&&(this[r]=e[r])}},isDefault:function(){return"white"===this.foreground&&!this.underline&&!this.italics&&"black"===this.background&&!this.flash},equals:function(e){return this.foreground===e.foreground&&this.underline===e.underline&&this.italics===e.italics&&this.background===e.background&&this.flash===e.flash},copy:function(e){this.foreground=e.foreground,this.underline=e.underline,this.italics=e.italics,this.background=e.background,this.flash=e.flash},toString:function(){return"color="+this.foreground+", underline="+this.underline+", italics="+this.italics+", background="+this.background+", flash="+this.flash}};function t(e,t,n,r,i,a){this.uchar=e||" ",this.penState=new o(t,n,r,i,a)}t.prototype={reset:function(){this.uchar=" ",this.penState.reset()},setChar:function(e,t){this.uchar=e,this.penState.copy(t)},setPenState:function(e){this.penState.copy(e)},equals:function(e){return this.uchar===e.uchar&&this.penState.equals(e.penState)},copy:function(e){this.uchar=e.uchar,this.penState.copy(e.penState)},isEmpty:function(){return" "===this.uchar&&this.penState.isDefault()}};function r(){this.chars=[];for(var e=0;e<32;e++)this.chars.push(new t);this.pos=0,this.currPenState=new o}r.prototype={equals:function(e){for(var t=!0,n=0;n<32;n++)if(!this.chars[n].equals(e.chars[n])){t=!1;break}return t},copy:function(e){for(var t=0;t<32;t++)this.chars[t].copy(e.chars[t])},isEmpty:function(){for(var e=!0,t=0;t<32;t++)if(!this.chars[t].isEmpty()){e=!1;break}return e},setCursor:function(e){this.pos!==e&&(this.pos=e),this.pos<0?(h.log("ERROR","Negative cursor position "+this.pos),this.pos=0):32<this.pos&&(h.log("ERROR","Too large cursor position "+this.pos),this.pos=32)},moveCursor:function(e){var t=this.pos+e;if(1<e)for(var n=this.pos+1;n<t+1;n++)this.chars[n].setPenState(this.currPenState);this.setCursor(t)},backSpace:function(){this.moveCursor(-1),this.chars[this.pos].setChar(" ",this.currPenState)},insertChar:function(e){144<=e&&this.backSpace();var t=s(e);32<=this.pos?h.log("ERROR","Cannot insert "+e.toString(16)+" ("+t+") at position "+this.pos+". Skipping it!"):(this.chars[this.pos].setChar(t,this.currPenState),this.moveCursor(1))},clearFromPos:function(e){var t;for(t=e;t<32;t++)this.chars[t].reset()},clear:function(){this.clearFromPos(0),this.pos=0,this.currPenState.reset()},clearToEndOfRow:function(){this.clearFromPos(this.pos)},getTextString:function(){for(var e=[],t=!0,n=0;n<32;n++){var r=this.chars[n].uchar;" "!==r&&(t=!1),e.push(r)}return t?"":e.join("")},setPenStyles:function(e){this.currPenState.setStyles(e),this.chars[this.pos].setPenState(this.currPenState)}};function i(){this.rows=[];for(var e=0;e<15;e++)this.rows.push(new r);this.currRow=14,this.nrRollUpRows=null,this.reset()}i.prototype={reset:function(){for(var e=0;e<15;e++)this.rows[e].clear();this.currRow=14},equals:function(e){for(var t=!0,n=0;n<15;n++)if(!this.rows[n].equals(e.rows[n])){t=!1;break}return t},copy:function(e){for(var t=0;t<15;t++)this.rows[t].copy(e.rows[t])},isEmpty:function(){for(var e=!0,t=0;t<15;t++)if(!this.rows[t].isEmpty()){e=!1;break}return e},backSpace:function(){this.rows[this.currRow].backSpace()},clearToEndOfRow:function(){this.rows[this.currRow].clearToEndOfRow()},insertChar:function(e){this.rows[this.currRow].insertChar(e)},setPen:function(e){this.rows[this.currRow].setPenStyles(e)},moveCursor:function(e){this.rows[this.currRow].moveCursor(e)},setCursor:function(e){h.log("INFO","setCursor: "+e),this.rows[this.currRow].setCursor(e)},setPAC:function(e){h.log("INFO","pacData = "+JSON.stringify(e));var t=e.row-1;this.nrRollUpRows&&t<this.nrRollUpRows-1&&(t=this.nrRollUpRows-1),this.currRow=t;var n=this.rows[this.currRow];if(null!==e.indent){var r=e.indent,i=Math.max(r-1,0);n.setCursor(e.indent),e.color=n.chars[i].penState.foreground}var a={foreground:e.color,underline:e.underline,italics:e.italics,background:"black",flash:!1};this.setPen(a)},setBkgData:function(e){h.log("INFO","bkgData = "+JSON.stringify(e)),this.backSpace(),this.setPen(e),this.insertChar(32)},setRollUpRows:function(e){this.nrRollUpRows=e},rollUp:function(){if(null!==this.nrRollUpRows){h.log("TEXT",this.getDisplayText());var e=this.currRow+1-this.nrRollUpRows,t=this.rows.splice(e,1)[0];t.clear(),this.rows.splice(this.currRow,0,t),h.log("INFO","Rolling up")}else h.log("DEBUG","roll_up but nrRollUpRows not set yet")},getDisplayText:function(e){e=e||!1;for(var t=[],n="",r=-1,i=0;i<15;i++){var a=this.rows[i].getTextString();a&&(r=i+1,e?t.push("Row "+r+': "'+a+'"'):t.push(a.trim()))}return 0<t.length&&(n=e?"["+t.join(" | ")+"]":t.join("\n")),n},getTextAndFormat:function(){return this.rows}};function p(e,t){this.chNr=e,this.outputFilter=t,this.mode=null,this.verbose=0,this.displayedMemory=new i,this.nonDisplayedMemory=new i,this.lastOutputScreen=new i,this.currRollUpRow=this.displayedMemory.rows[14],this.writeScreen=this.displayedMemory,this.mode=null,this.cueStartTime=null}p.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[14],this.writeScreen=this.displayedMemory,this.mode=null,this.cueStartTime=null,this.lastCueEndTime=null},getHandler:function(){return this.outputFilter},setHandler:function(e){this.outputFilter=e},setPAC:function(e){this.writeScreen.setPAC(e)},setBkgData:function(e){this.writeScreen.setBkgData(e)},setMode:function(e){e!==this.mode&&(this.mode=e,h.log("INFO","MODE="+e),"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=e)},insertChars:function(e){for(var t=0;t<e.length;t++)this.writeScreen.insertChar(e[t]);var n=this.writeScreen===this.displayedMemory?"DISP":"NON_DISP";h.log("INFO",n+": "+this.writeScreen.getDisplayText(!0)),"MODE_PAINT-ON"!==this.mode&&"MODE_ROLL-UP"!==this.mode||(h.log("TEXT","DISPLAYED: "+this.displayedMemory.getDisplayText(!0)),this.outputDataUpdate())},cc_RCL:function(){h.log("INFO","RCL - Resume Caption Loading"),this.setMode("MODE_POP-ON")},cc_BS:function(){h.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(){h.log("INFO","DER- Delete to End of Row"),this.writeScreen.clearToEndOfRow(),this.outputDataUpdate()},cc_RU:function(e){h.log("INFO","RU("+e+") - Roll Up"),this.writeScreen=this.displayedMemory,this.setMode("MODE_ROLL-UP"),this.writeScreen.setRollUpRows(e)},cc_FON:function(){h.log("INFO","FON - Flash On"),this.writeScreen.setPen({flash:!0})},cc_RDC:function(){h.log("INFO","RDC - Resume Direct Captioning"),this.setMode("MODE_PAINT-ON")},cc_TR:function(){h.log("INFO","TR"),this.setMode("MODE_TEXT")},cc_RTD:function(){h.log("INFO","RTD"),this.setMode("MODE_TEXT")},cc_EDM:function(){h.log("INFO","EDM - Erase Displayed Memory"),this.displayedMemory.reset(),this.outputDataUpdate()},cc_CR:function(){h.log("CR - Carriage Return"),this.writeScreen.rollUp(),this.outputDataUpdate()},cc_ENM:function(){h.log("INFO","ENM - Erase Non-displayed Memory"),this.nonDisplayedMemory.reset()},cc_EOC:function(){if(h.log("INFO","EOC - End Of Caption"),"MODE_POP-ON"===this.mode){var e=this.displayedMemory;this.displayedMemory=this.nonDisplayedMemory,this.nonDisplayedMemory=e,this.writeScreen=this.nonDisplayedMemory,h.log("TEXT","DISP: "+this.displayedMemory.getDisplayText())}this.outputDataUpdate()},cc_TO:function(e){h.log("INFO","TO("+e+") - Tab Offset"),this.writeScreen.moveCursor(e)},cc_MIDROW:function(e){var t={flash:!1};if(t.underline=e%2==1,t.italics=46<=e,t.italics)t.foreground="white";else{var n=Math.floor(e/2)-16;t.foreground=["white","green","blue","cyan","red","yellow","magenta"][n]}h.log("INFO","MIDROW: "+JSON.stringify(t)),this.writeScreen.setPen(t)},outputDataUpdate:function(){var e=h.time;null!==e&&this.outputFilter&&(this.outputFilter.updateData&&this.outputFilter.updateData(e,this.displayedMemory),null!==this.cueStartTime||this.displayedMemory.isEmpty()?this.displayedMemory.equals(this.lastOutputScreen)||(this.outputFilter.newCue&&this.outputFilter.newCue(this.cueStartTime,e,this.lastOutputScreen),this.cueStartTime=this.displayedMemory.isEmpty()?null:e):this.cueStartTime=e,this.lastOutputScreen.copy(this.displayedMemory))},cueSplitAtTime:function(e){this.outputFilter&&(this.displayedMemory.isEmpty()||(this.outputFilter.newCue&&this.outputFilter.newCue(this.cueStartTime,e,this.displayedMemory),this.cueStartTime=e))}};function g(e,t,n){this.field=e||1,this.outputs=[t,n],this.channels=[new p(1,t),new p(2,n)],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}}g.prototype={getHandler:function(e){return this.channels[e].getHandler()},setHandler:function(e,t){this.channels[e].setHandler(t)},addData:function(e,t){var n,r,i,a=!1;this.lastTime=e,h.setTime(e);for(var o=0;o<t.length;o+=2)if(r=127&t[o],i=127&t[o+1],16<=r&&r<=31&&r===this.lastCmdA&&i===this.lastCmdB)this.lastCmdA=null,this.lastCmdB=null,h.log("DEBUG","Repeated command ("+u([r,i])+") is dropped");else if(0!=r||0!=i){if(h.log("DATA","["+u([t[o],t[o+1]])+"] -> ("+u([r,i])+")"),!(n=(n=(n=(n=this.parseCmd(r,i))||this.parseMidrow(r,i))||this.parsePAC(r,i))||this.parseBackgroundAttributes(r,i)))if(a=this.parseChars(r,i))if(this.currChNr&&0<=this.currChNr)this.channels[this.currChNr-1].insertChars(a);else h.log("WARNING","No channel found yet. TEXT-MODE?");n?this.dataCounters.cmd+=2:a?this.dataCounters.char+=2:(this.dataCounters.other+=2,h.log("WARNING","Couldn't parse cleaned data "+u([r,i])+" orig: "+u([t[o],t[o+1]])))}else this.dataCounters.padding+=2},parseCmd:function(e,t){var n=null;if(!((20===e||21===e||28===e||29===e)&&32<=t&&t<=47)&&!((23===e||31===e)&&33<=t&&t<=35))return!1;n=20===e||21===e||23===e?1:2;var r=this.channels[n-1];return 20===e||21===e||28===e||29===e?32===t?r.cc_RCL():33===t?r.cc_BS():34===t?r.cc_AOF():35===t?r.cc_AON():36===t?r.cc_DER():37===t?r.cc_RU(2):38===t?r.cc_RU(3):39===t?r.cc_RU(4):40===t?r.cc_FON():41===t?r.cc_RDC():42===t?r.cc_TR():43===t?r.cc_RTD():44===t?r.cc_EDM():45===t?r.cc_CR():46===t?r.cc_ENM():47===t&&r.cc_EOC():r.cc_TO(t-32),this.lastCmdA=e,this.lastCmdB=t,this.currChNr=n,!0},parseMidrow:function(e,t){var n=null;if((17===e||25===e)&&32<=t&&t<=47){if((n=17===e?1:2)!==this.currChNr)return h.log("ERROR","Mismatch channel in midrow parsing"),!1;var r=this.channels[n-1];return r.insertChars([32]),r.cc_MIDROW(t),h.log("DEBUG","MIDROW ("+u([e,t])+")"),this.lastCmdA=e,this.lastCmdB=t,!0}return!1},parsePAC:function(e,t){var n,r=null;if(!((17<=e&&e<=23||25<=e&&e<=31)&&64<=t&&t<=127)&&!((16===e||24===e)&&64<=t&&t<=95))return!1;n=e<=23?1:2,r=64<=t&&t<=95?1==n?a[e]:f[e]:1==n?l[e]:d[e];var i=this.interpretPAC(r,t);return this.channels[n-1].setPAC(i),this.lastCmdA=e,this.lastCmdB=t,this.currChNr=n,!0},interpretPAC:function(e,t){var n=t,r={color:null,italics:!1,indent:null,underline:!1,row:e};return n=95<t?t-96:t-64,r.underline=1==(1&n),n<=13?r.color=["white","green","blue","cyan","red","yellow","magenta","white"][Math.floor(n/2)]:n<=15?(r.italics=!0,r.color="white"):r.indent=4*Math.floor((n-16)/2),r},parseChars:function(e,t){var n=null,r=null,i=null;if(17<=(i=25<=e?(n=2,e-8):(n=1,e))&&i<=19){var a=t;a=17===i?t+80:18===i?t+112:t+144,h.log("INFO","Special char '"+s(a)+"' in channel "+n),r=[a],this.lastCmdA=e,this.lastCmdB=t}else 32<=e&&e<=127&&(r=0===t?[e]:[e,t],this.lastCmdA=null,this.lastCmdB=null);if(r){var o=u(r);h.log("DEBUG","Char codes = "+o.join(","))}return r},parseBackgroundAttributes:function(e,t){var n,r,i;return((16===e||24===e)&&32<=t&&t<=47||(23===e||31===e)&&45<=t&&t<=47)&&(n={},16===e||24===e?(r=Math.floor((t-32)/2),n.background=c[r],t%2==1&&(n.background=n.background+"_semi")):45===t?n.background="transparent":(n.foreground="black",47===t&&(n.underline=!0)),i=e<24?1:2,this.channels[i-1].setBkgData(n),this.lastCmdA=e,this.lastCmdB=t,!0)},reset:function(){for(var e=0;e<this.channels.length;e++)this.channels[e]&&this.channels[e].reset();this.lastCmdA=null,this.lastCmdB=null},cueSplitAtTime:function(e){for(var t=0;t<this.channels.length;t++)this.channels[t]&&this.channels[t].cueSplitAtTime(e)}};e.logger=h,e.PenState=o,e.CaptionScreen=i,e.Cea608Parser=g,e.findCea608Nalus=function(e,t,n){for(var r=0,i=t,a=[],o=function(e,t,n,r){if(4!==e||t<8)return null;var i=n.getUint8(r),a=n.getUint16(r+1),o=n.getUint32(r+3),s=n.getUint8(r+7);return 181==i&&49==a&&1195456820==o&&3==s};i<t+n;){if(r=e.getUint32(i),6===(31&e.getUint8(i+4)))for(var s=i+5,u=-1;s<i+4+r-1;){u=0;for(var l=255;255===l;)u+=l=e.getUint8(s),s++;var f=0;for(l=255;255===l;)f+=l=e.getUint8(s),s++;o(u,f,e,s)&&a.push([s,f]),s+=f}i+=r+4}return a},e.extractCea608DataFromRange=function(e,t){var n=t[0],r=[[],[]];n+=8;var i=31&e.getUint8(n);n+=2;for(var a=0;a<i;a++){var o=e.getUint8(n),s=4&o,u=3&o;n++;var l=e.getUint8(n);n++;var f=e.getUint8(n);n++,s&&(127&l)+(127&f)!=0&&(0==u?(r[0].push(l),r[0].push(f)):1==u&&(r[1].push(l),r[1].push(f)))}return r}}(void 0===n?(void 0).cea608parser={}:n)},{}],3:[function(e,t,n){"use strict";Object.defineProperty(n,"__esModule",{value:!0}),n.default=function(A){A=A||{},function(){void 0===A.escapeMode&&(A.escapeMode=!0);void 0===A.attributePrefix&&(A.attributePrefix="_");A.arrayAccessForm=A.arrayAccessForm||"none",A.emptyNodeForm=A.emptyNodeForm||"text",void 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