linkv-recorder-sdk/LinkvRecord-2.3.4.js

linkv recorder sdk

/*! For license information please see LinkvRecord-2.3.4.js.LICENSE.txt */
!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t():"function"==typeof define&&define.amd?define([],t):"object"==typeof exports?exports.LinkvRecord=t():e.LinkvRecord=t()}(this,(function(){return(()=>{var e={140:(e,t,n)=>{e.exports=function e(t,n,r){function i(a,s){if(!n[a]){if(!t[a]){if(o)return o(a,!0);var u=new Error("Cannot find module '"+a+"'");throw u.code="MODULE_NOT_FOUND",u}var l=n[a]={exports:{}};t[a][0].call(l.exports,(function(e){return i(t[a][1][e]||e)}),l,l.exports,e,t,n,r)}return n[a].exports}for(var o=void 0,a=0;a<r.length;a++)i(r[a]);return i}({1:[function(e,t,n){"use strict";Object.defineProperty(n,"__esModule",{value:!0});var r,i=e("./tools"),o=e("int64-buffer"),a=e("./tools"),s=e("matroska/lib/schema").byEbmlID;!function(e){e[e.STATE_TAG=1]="STATE_TAG",e[e.STATE_SIZE=2]="STATE_SIZE",e[e.STATE_CONTENT=3]="STATE_CONTENT"}(r||(r={}));var u=function(){function e(){this._buffer=new i.Buffer(0),this._tag_stack=[],this._state=r.STATE_TAG,this._cursor=0,this._total=0,this._schema=s,this._result=[]}return e.prototype.decode=function(e){this.readChunk(e);var t=this._result;return this._result=[],t},e.prototype.readChunk=function(e){for(this._buffer=a.concat([this._buffer,new i.Buffer(e)]);this._cursor<this._buffer.length&&(this._state!==r.STATE_TAG||this.readTag())&&(this._state!==r.STATE_SIZE||this.readSize())&&(this._state!==r.STATE_CONTENT||this.readContent()););},e.prototype.getSchemaInfo=function(e){return this._schema[e]||{name:"unknown",level:-1,type:"unknown",description:"unknown"}},e.prototype.readTag=function(){if(this._cursor>=this._buffer.length)return!1;var e=i.readVint(this._buffer,this._cursor);if(null==e)return!1;var t=this._buffer.slice(this._cursor,this._cursor+e.length).reduce((function(e,t,n,r){return e+t*Math.pow(16,2*(r.length-1-n))}),0),n=this.getSchemaInfo(t),o={EBML_ID:t.toString(16),schema:n,type:n.type,name:n.name,level:n.level,tagStart:this._total,tagEnd:this._total+e.length,sizeStart:this._total+e.length,sizeEnd:null,dataStart:null,dataEnd:null,dataSize:null,data:null};return this._tag_stack.push(o),this._cursor+=e.length,this._total+=e.length,this._state=r.STATE_SIZE,!0},e.prototype.readSize=function(){if(this._cursor>=this._buffer.length)return!1;var e=i.readVint(this._buffer,this._cursor);if(null==e)return!1;var t=this._tag_stack[this._tag_stack.length-1];return t.sizeEnd=t.sizeStart+e.length,t.dataStart=t.sizeEnd,t.dataSize=e.value,-1===e.value?(t.dataEnd=-1,"m"===t.type&&(t.unknownSize=!0)):t.dataEnd=t.sizeEnd+e.value,this._cursor+=e.length,this._total+=e.length,this._state=r.STATE_CONTENT,!0},e.prototype.readContent=function(){var e=this._tag_stack[this._tag_stack.length-1];if("m"===e.type){if(e.isEnd=!1,this._result.push(e),this._state=r.STATE_TAG,0===e.dataSize){var t=Object.assign({},e,{isEnd:!0});this._result.push(t),this._tag_stack.pop()}return!0}if(this._buffer.length<this._cursor+e.dataSize)return!1;var n=this._buffer.slice(this._cursor,this._cursor+e.dataSize);switch(this._buffer=this._buffer.slice(this._cursor+e.dataSize),e.data=n,e.type){case"u":e.value=n.readUIntBE(0,n.length);break;case"i":e.value=n.readIntBE(0,n.length);break;case"f":e.value=4===e.dataSize?n.readFloatBE(0):8===e.dataSize?n.readDoubleBE(0):(console.warn("cannot read "+e.dataSize+" octets float. failback to 0"),0);break;case"s":e.value=n.toString("ascii");break;case"8":e.value=n.toString("utf8");break;case"b":e.value=n;break;case"d":e.value=i.convertEBMLDateToJSDate(new o.Int64BE(n).toNumber())}if(null===e.value)throw new Error("unknown tag type:"+e.type);for(this._result.push(e),this._total+=e.dataSize,this._state=r.STATE_TAG,this._cursor=0,this._tag_stack.pop();this._tag_stack.length>0;){var a=this._tag_stack[this._tag_stack.length-1];if(a.dataEnd<0)return this._tag_stack.pop(),!0;if(this._total<a.dataEnd)break;if("m"!==a.type)throw new Error("parent element is not master element");t=Object.assign({},a,{isEnd:!0}),this._result.push(t),this._tag_stack.pop()}return!0},e}();n.default=u},{"./tools":5,"int64-buffer":15,"matroska/lib/schema":17}],2:[function(e,t,n){"use strict";Object.defineProperty(n,"__esModule",{value:!0});var r=e("./tools"),i=e("./tools"),o=e("matroska/lib/schema").byEbmlID,a=function(){function e(){this._schema=o,this._buffers=[],this._stack=[]}return e.prototype.encode=function(e){var t=this;return r.concat(e.reduce((function(e,n){return e.concat(t.encodeChunk(n))}),[])).buffer},e.prototype.encodeChunk=function(e){return"m"===e.type?e.isEnd?this.endTag(e):this.startTag(e):this.writeTag(e),this.flush()},e.prototype.flush=function(){var e=this._buffers;return this._buffers=[],e},e.prototype.getSchemaInfo=function(e){for(var t=Object.keys(this._schema).map(Number),n=0;n<t.length;n++){var r=t[n];if(this._schema[r].name===e)return new i.Buffer(r.toString(16),"hex")}return null},e.prototype.writeTag=function(e){var t=e.name,n=this.getSchemaInfo(t),i=e.data;if(null==n)throw new Error("No schema entry found for "+t);var o=r.encodeTag(n,i);this._stack.length>0?this._stack[this._stack.length-1].children.push({tagId:n,elm:e,children:[],data:o}):this._buffers=this._buffers.concat(o)},e.prototype.startTag=function(e){var t=e.name,n=this.getSchemaInfo(t);if(null==n)throw new Error("No schema entry found for "+t);if(e.unknownSize){var o=r.encodeTag(n,new i.Buffer(0),e.unknownSize);this._buffers=this._buffers.concat(o)}else{var a={tagId:n,elm:e,children:[],data:null};this._stack.length>0&&this._stack[this._stack.length-1].children.push(a),this._stack.push(a)}},e.prototype.endTag=function(e){e.name;var t=this._stack.pop();if(null==t)throw new Error("EBML structure is broken");if(t.elm.name!==e.name)throw new Error("EBML structure is broken");var n=t.children.reduce((function(e,t){if(null===t.data)throw new Error("EBML structure is broken");return e.concat(t.data)}),[]),i=r.concat(n);"m"===t.elm.type?t.data=r.encodeTag(t.tagId,i,t.elm.unknownSize):t.data=r.encodeTag(t.tagId,i),this._stack.length<1&&(this._buffers=this._buffers.concat(t.data))},e}();n.default=a},{"./tools":5,"matroska/lib/schema":17}],3:[function(e,t,n){"use strict";var r,i=this&&this.__extends||(r=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(e,t){e.__proto__=t}||function(e,t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])},function(e,t){function n(){this.constructor=e}r(e,t),e.prototype=null===t?Object.create(t):(n.prototype=t.prototype,new n)});Object.defineProperty(n,"__esModule",{value:!0});var o=e("events"),a=e("./tools"),s=function(e){function t(){var t=e.call(this)||this;return t.logGroup="",t.hasLoggingStarted=!1,t.metadataloaded=!1,t.chunks=[],t.stack=[],t.segmentOffset=0,t.last2SimpleBlockVideoTrackTimecode=[0,0],t.last2SimpleBlockAudioTrackTimecode=[0,0],t.lastClusterTimecode=0,t.lastClusterPosition=0,t.timecodeScale=1e6,t.metadataSize=0,t.metadatas=[],t.cues=[],t.firstVideoBlockRead=!1,t.firstAudioBlockRead=!1,t.currentTrack={TrackNumber:-1,TrackType:-1,DefaultDuration:null,CodecDelay:null},t.trackTypes=[],t.trackDefaultDuration=[],t.trackCodecDelay=[],t.trackInfo={type:"nothing"},t.ended=!1,t.logging=!1,t.use_duration_every_simpleblock=!1,t.use_webp=!1,t.use_segment_info=!0,t.drop_default_duration=!0,t}return i(t,e),t.prototype.stop=function(){for(this.ended=!0,this.emit_segment_info();this.stack.length;)this.stack.pop(),this.logging&&console.groupEnd();this.logging&&this.hasLoggingStarted&&this.logGroup&&console.groupEnd()},t.prototype.emit_segment_info=function(){var e=this.chunks;if(this.chunks=[],this.metadataloaded){if(!this.use_segment_info)return;var t=this.lastClusterTimecode,n=this.duration,r=this.timecodeScale;this.emit("cluster",{timecode:t,data:e}),this.emit("duration",{timecodeScale:r,duration:n})}else{this.metadataloaded=!0,this.metadatas=e;var i=this.trackTypes.indexOf(1),o=this.trackTypes.indexOf(2);if(this.trackInfo=i>=0&&o>=0?{type:"both",trackNumber:i}:i>=0?{type:"video",trackNumber:i}:o>=0?{type:"audio",trackNumber:o}:{type:"nothing"},!this.use_segment_info)return;this.emit("metadata",{data:e,metadataSize:this.metadataSize})}},t.prototype.read=function(e){var t=this,n=!1;if(!this.ended){if("m"===e.type)if(e.isEnd)this.stack.pop();else{var r=this.stack[this.stack.length-1];if(null!=r&&r.level>=e.level){this.stack.pop(),this.logging&&console.groupEnd(),r.dataEnd=e.dataEnd,r.dataSize=e.dataEnd-r.dataStart,r.unknownSize=!1;var i=Object.assign({},r,{name:r.name,type:r.type,isEnd:!0});this.chunks.push(i)}this.stack.push(e)}if("m"===e.type&&"Segment"==e.name)0!=this.segmentOffset&&console.warn("Multiple segments detected!"),this.segmentOffset=e.dataStart,this.emit("segment_offset",this.segmentOffset);else if("b"===e.type&&"SimpleBlock"===e.name){var o=a.ebmlBlock(e.data),s=o.timecode,u=o.trackNumber,l=o.frames;if(1===this.trackTypes[u]){if(!this.firstVideoBlockRead&&(this.firstVideoBlockRead=!0,"both"===this.trackInfo.type||"video"===this.trackInfo.type)){var c=this.lastClusterTimecode+s;this.cues.push({CueTrack:u,CueClusterPosition:this.lastClusterPosition,CueTime:c}),this.emit("cue_info",{CueTrack:u,CueClusterPosition:this.lastClusterPosition,CueTime:this.lastClusterTimecode}),this.emit("cue",{CueTrack:u,CueClusterPosition:this.lastClusterPosition,CueTime:c})}this.last2SimpleBlockVideoTrackTimecode=[this.last2SimpleBlockVideoTrackTimecode[1],s]}else 2===this.trackTypes[u]&&(this.firstAudioBlockRead||(this.firstAudioBlockRead=!0,"audio"!==this.trackInfo.type)||(c=this.lastClusterTimecode+s,this.cues.push({CueTrack:u,CueClusterPosition:this.lastClusterPosition,CueTime:c}),this.emit("cue_info",{CueTrack:u,CueClusterPosition:this.lastClusterPosition,CueTime:this.lastClusterTimecode}),this.emit("cue",{CueTrack:u,CueClusterPosition:this.lastClusterPosition,CueTime:c})),this.last2SimpleBlockAudioTrackTimecode=[this.last2SimpleBlockAudioTrackTimecode[1],s]);this.use_duration_every_simpleblock&&this.emit("duration",{timecodeScale:this.timecodeScale,duration:this.duration}),this.use_webp&&l.forEach((function(e){if("9d012a"===e.slice(3,6).toString("hex")){var n=a.VP8BitStreamToRiffWebPBuffer(e),r=new Blob([n],{type:"image/webp"}),i=t.duration;t.emit("webp",{currentTime:i,webp:r})}}))}else"m"===e.type&&"Cluster"===e.name&&!1===e.isEnd?(this.firstVideoBlockRead=!1,this.firstAudioBlockRead=!1,this.emit_segment_info(),this.emit("cluster_ptr",e.tagStart),this.lastClusterPosition=e.tagStart):"u"===e.type&&"Timecode"===e.name?this.lastClusterTimecode=e.value:"u"===e.type&&"TimecodeScale"===e.name?this.timecodeScale=e.value:"m"===e.type&&"TrackEntry"===e.name?e.isEnd?(this.trackTypes[this.currentTrack.TrackNumber]=this.currentTrack.TrackType,this.trackDefaultDuration[this.currentTrack.TrackNumber]=this.currentTrack.DefaultDuration,this.trackCodecDelay[this.currentTrack.TrackNumber]=this.currentTrack.CodecDelay):this.currentTrack={TrackNumber:-1,TrackType:-1,DefaultDuration:null,CodecDelay:null}:"u"===e.type&&"TrackType"===e.name?this.currentTrack.TrackType=e.value:"u"===e.type&&"TrackNumber"===e.name?this.currentTrack.TrackNumber=e.value:"u"===e.type&&"CodecDelay"===e.name?this.currentTrack.CodecDelay=e.value:"u"===e.type&&"DefaultDuration"===e.name?this.drop_default_duration?(console.warn("DefaultDuration detected!, remove it"),n=!0):this.currentTrack.DefaultDuration=e.value:"unknown"===e.name&&console.warn(e);!this.metadataloaded&&e.dataEnd>0&&(this.metadataSize=e.dataEnd),n||this.chunks.push(e),this.logging&&this.put(e)}},Object.defineProperty(t.prototype,"duration",{get:function(){if("nothing"===this.trackInfo.type)return console.warn("no video, no audio track"),0;var e=0,t=0,n=0,r=this.trackDefaultDuration[this.trackInfo.trackNumber];if("number"==typeof r)e=r;else if("both"===this.trackInfo.type)this.last2SimpleBlockAudioTrackTimecode[1]>this.last2SimpleBlockVideoTrackTimecode[1]?(e=(this.last2SimpleBlockAudioTrackTimecode[1]-this.last2SimpleBlockAudioTrackTimecode[0])*this.timecodeScale,"number"==typeof(i=this.trackCodecDelay[this.trackTypes.indexOf(2)])&&(t=i),n=this.last2SimpleBlockAudioTrackTimecode[1]):(e=(this.last2SimpleBlockVideoTrackTimecode[1]-this.last2SimpleBlockVideoTrackTimecode[0])*this.timecodeScale,"number"==typeof(i=this.trackCodecDelay[this.trackTypes.indexOf(1)])&&(t=i),n=this.last2SimpleBlockVideoTrackTimecode[1]);else if("video"===this.trackInfo.type)e=(this.last2SimpleBlockVideoTrackTimecode[1]-this.last2SimpleBlockVideoTrackTimecode[0])*this.timecodeScale,"number"==typeof(i=this.trackCodecDelay[this.trackInfo.trackNumber])&&(t=i),n=this.last2SimpleBlockVideoTrackTimecode[1];else if("audio"===this.trackInfo.type){var i;e=(this.last2SimpleBlockAudioTrackTimecode[1]-this.last2SimpleBlockAudioTrackTimecode[0])*this.timecodeScale,"number"==typeof(i=this.trackCodecDelay[this.trackInfo.trackNumber])&&(t=i),n=this.last2SimpleBlockAudioTrackTimecode[1]}var o=((this.lastClusterTimecode+n)*this.timecodeScale+e-t)/this.timecodeScale;return Math.floor(o)},enumerable:!0,configurable:!0}),t.prototype.addListener=function(t,n){return e.prototype.addListener.call(this,t,n)},t.prototype.put=function(e){this.hasLoggingStarted||(this.hasLoggingStarted=!0,this.logging&&this.logGroup&&console.groupCollapsed(this.logGroup)),"m"===e.type?e.isEnd?console.groupEnd():console.group(e.name+":"+e.tagStart):"b"===e.type?console.log(e.name,e.type):console.log(e.name,e.tagStart,e.type,e.value)},t}(o.EventEmitter);n.default=s},{"./tools":5,events:13}],4:[function(e,t,n){"use strict";Object.defineProperty(n,"__esModule",{value:!0});var r=e("./EBMLDecoder");n.Decoder=r.default;var i=e("./EBMLEncoder");n.Encoder=i.default;var o=e("./EBMLReader");n.Reader=o.default;var a=e("./tools");n.tools=a;var s=e("../package.json").version;n.version=s},{"../package.json":18,"./EBMLDecoder":1,"./EBMLEncoder":2,"./EBMLReader":3,"./tools":5}],5:[function(e,t,n){"use strict";Object.defineProperty(n,"__esModule",{value:!0});var r=e("int64-buffer"),i=e("./EBMLEncoder"),o=e("buffer/"),a=e("ebml/lib/ebml/tools"),s=e("ebml-block");function u(e){return e.reduce((function(e,t){return"b"!==t.type||"SimpleBlock"!==t.name?e:n.ebmlBlock(t.data).frames.some((function(e){return"9d012a"===e.slice(3,6).toString("hex")}))?e.concat(t):e}),[])}function l(e){var t=c("VP8 ",e);return c("RIFF",v([new n.Buffer("WEBP","ascii"),t]))}function c(e,t){var r=new n.Buffer(4);return r.writeUInt32LE(t.byteLength,0),v([new n.Buffer(e.substr(0,4),"ascii"),r,t,new n.Buffer(t.byteLength%2==0?0:1)])}function d(e,t){for(var n=-1,r=0;r<t.length;r++){var i=t[r];if(i.name===e){if("m"!==i.type)return void t.splice(r,1);if(i.isEnd){if(-1==n)throw new Error("Detected "+e+" closing element before finding the start");return void t.splice(n,r-n+1)}n=r}}}function f(e,t){for(var n=[],r=-1,i=0;i<t.length;i++){var o=t[i];if(o.name===e){if("m"!==o.type){n.push(t[i]);break}if(o.isEnd){if(-1==r)throw new Error("Detected "+e+" closing element before finding the start");n=t.slice(r,i+1);break}r=i}}return n}function h(e){var t=new i.default;return e.reduce((function(e,n){return e.concat(t.encode([n]))}),[]).reduce((function(e,t){return e+t.byteLength}),0)}function p(e,t,r){var i=r.duration,o=r.clusterPtrs,a=r.cues,s=e.slice(0);if("number"==typeof i){var u=!1;s.forEach((function(e){"f"===e.type&&"Duration"===e.name&&(u=!0,e.data=b(i,8))})),u||m(s,"Info",[{name:"Duration",type:"f",data:b(i,8)}])}Array.isArray(a)&&m(s,"Cues",function(e,t){var n=[];return e.forEach((function(e){var r=e.CueTrack,i=e.CueClusterPosition,o=e.CueTime;n.push({name:"CuePoint",type:"m",isEnd:!1}),n.push({name:"CueTime",type:"u",data:g(o)}),n.push({name:"CueTrackPositions",type:"m",isEnd:!1}),n.push({name:"CueTrack",type:"u",data:g(r)}),n.push({name:"CueClusterPosition",type:"u",data:g(i+t)}),n.push({name:"CueTrackPositions",type:"m",isEnd:!0}),n.push({name:"CuePoint",type:"m",isEnd:!0})})),n}(a,t));var l=[];return Array.isArray(o)&&(console.warn("append cluster pointers to seekhead is deprecated. please use cues"),l=function(e,t){var r=[];return e.forEach((function(e){r.push({name:"Seek",type:"m",isEnd:!1}),r.push({name:"SeekID",type:"b",data:new n.Buffer([31,67,182,117])}),r.push({name:"SeekPosition",type:"u",data:g(e+t)}),r.push({name:"Seek",type:"m",isEnd:!0})})),r}(o,t)),m(s,"SeekHead",l,!0),s}function m(e,t,n,r){void 0===r&&(r=!1);for(var i=-1,o=0;o<e.length;o++){var a=e[o];if("m"===a.type&&a.name===t&&!1===a.isEnd){i=o;break}}i>=0?Array.prototype.splice.apply(e,[i+1,0].concat(n)):r?[].concat([{name:t,type:"m",isEnd:!1}],n,[{name:t,type:"m",isEnd:!0}]).reverse().forEach((function(t){e.unshift(t)})):(e.push({name:t,type:"m",isEnd:!1}),n.forEach((function(t){e.push(t)})),e.push({name:t,type:"m",isEnd:!0}))}function v(e){for(var t=0,r=0;t<e.length;++t)r+=e[t].length;var i=n.Buffer.allocUnsafe(r),o=0;for(t=0;t<e.length;++t){var a=e[t];a.copy(i,o),o+=a.length}return i}function g(e){for(var t=1;e>=Math.pow(2,8*t);t++);if(t>=7)return console.warn("7bit or more bigger uint not supported."),new r.Uint64BE(e).toBuffer();var i=new n.Buffer(t);return i.writeUIntBE(e,0,t),i}function y(e){for(var t=1;e>=Math.pow(2,8*t);t++);if(t>=7)return console.warn("7bit or more bigger uint not supported."),new r.Int64BE(e).toBuffer();var i=new n.Buffer(t);return i.writeIntBE(e,0,t),i}function b(e,t){var r;if(void 0===t&&(t=8),8===t)return(r=new n.Buffer(8)).writeDoubleBE(e,0),r;if(4===t)return(r=new n.Buffer(4)).writeFloatBE(e,0),r;throw new Error("float type bits must 4bytes or 8bytes")}n.Buffer=o.Buffer,n.readVint=a.readVint,n.writeVint=a.writeVint,n.ebmlBlock=s,n.readBlock=function(e){return n.ebmlBlock(new n.Buffer(e))},n.encodeTag=function(e,t,r){return void 0===r&&(r=!1),v([e,r?new n.Buffer("01ffffffffffffff","hex"):n.writeVint(t.length),t])},n.WebPFrameFilter=function(e){return u(e).reduce((function(e,t){return n.ebmlBlock(t.data).frames.reduce((function(e,t){var n=l(t),r=new Blob([n],{type:"image/webp"});return e.concat(r)}),e)}),[])},n.WebPBlockFilter=u,n.VP8BitStreamToRiffWebPBuffer=l,n.createRIFFChunk=c,n.makeMetadataSeekable=function(e,t,r){var o=f("EBML",e),a=h(o)+12,s=e[e.length-1].dataEnd-a,u=f("Info",e);d("Duration",u),u.splice(1,0,{name:"Duration",type:"f",data:b(t,8)});for(var l=h(u),c=f("Tracks",e),p=h(c),m=47,v=[],y=5+15*r.length,_=[],w=-1,k=function(e){var 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