RecordPlayBackParse.js
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import ByteBuffer from 'libs/bytebuffer.min';
import Emiter from 'Emiter';
import MessageTypes from 'MessageTypes';
import Loger from 'Loger';
import pdu from 'pdus/index';
import PduType from 'pdus/PduType';
import PduConsts from 'pdus/PduConsts';
import ApeConsts from 'apes/ApeConsts';
import ArrayBufferUtil from 'libs/ArrayBufferUtil';
import Base64 from 'base64-js';
import GlobalConfig from 'GlobalConfig';
import EngineUtils from 'EngineUtils';
let parseBuffer;
// 日志对象
const loger = Loger.getLoger('RecordPlayBackParse');
class RecordPlayBackParse extends Emiter {
constructor() {
super();
loger.log("RecordPlayBackParse");
parseBuffer = new ByteBuffer( ByteBuffer.DEFAULT_CAPACITY,ByteBuffer.LITTLE_ENDIAN);
parseBuffer.clear();
console.log(parseBuffer);
this._apes = {};
}
//method--------------------内部---------------------------------------------
// 注册Ape
registerApe(ape) {
this._apes[ape._session_id] = ape;
}
// 录制回放EverSocket底层消息处理
_everSocketMsgReceivedHandler(data) {
let pduMsg = pdu.decode_pdu(data);
let pduType = pduMsg.get("type");
let pduData = pduMsg.get("data");
//*************非常重要******************
//客户端发送的所有125消息，MCU收到之后会痛120把消息返回给客户端，
//所以需要把125消息type转换为120，因为MCU在录制的时候是直接录制客户端发送的消息而不是MCU转换之后的
if(pduType==PduType.RCPDU_UNIFORM_SEND_DATA_REQUEST){
pduMsg.type=PduType.RCPDU_SEND_DATA_REQUEST;
pduType=PduType.RCPDU_SEND_DATA_REQUEST;
}
loger.log('pduType',pduType);
switch (pduType) {
case PduType.RCPDU_CONNECT_PROVIDER_RESPONSE:
//加入课堂请求返回数据处理
let joinConfPdu = pdu['RCConferenceJoinResponsePdu'].decode(pduData);
let pduResultCode = joinConfPdu.result;
loger.warn('RCPDU_CONNECT_PROVIDER_RESPONSE ->pduResultCode:' + pduResultCode);
switch (pduResultCode) {
case PduConsts.RET_SUCCESS:
//加入成功
this._updateMCUConfInfoDescription(joinConfPdu.classDescription);
this._emit(MessageTypes.CLASS_JOIN_MCU_SUCCESS, this.classInfo);
break;
case PduConsts.RET_FULL_CAPACITY:
this._emit(MessageTypes.MCU_ERROR, MessageTypes.ERR_CLASS_JOIN_FULL);
break;
default:
loger.warn('JoinConfPdu-未知类型-等待处理.', pduResultCode);
break
}
break;
case PduType.RCPDU_SEND_DATA_REQUEST:
//先判断当前消息属于哪个APE 根据 sessionId来判断
let ape = this._apes[pduMsg.sessionId];
let sessionLabel = ApeConsts(pduMsg.sessionId);
if (ape) {
let subTypeLabel = pdu.id2type(pduMsg.subType);
//loger.log('MCU-SecondLayer封装消息', 'sessionId', sessionLabel, pduMsg.sessionId, 'subtype', subTypeLabel, pduMsg.subType);
//ape广播事件，只要ape中监听就能收到
ape._emit(pduMsg.subType, pduMsg.data);
} else {
loger.warn(sessionLabel + '尚未注册');
}
break;
default:
loger.warn('PDU-未知类型-等待处理.', pduType);
}
}
//method------------外部接口-------------------------------------
//加载录制文件
readyRecordPlay(){
loger.log("读取回放数据");
//let url = `http://123.56.73.119:80/h5dev/20170306/1357644520_20170306.rec`;
let url=`http://${ GlobalConfig.RecordServerIP}:${ GlobalConfig.RecordServerPort}/${GlobalConfig.recordFileName}`;
console.log(url);
fetch(url, {
timeout: 90000
})
.then(ret => {
if (ret.ok) {
return ret.arrayBuffer();
} else {
loger.error(`读取回放数据-网络异常.状态码:${ret.status}`);
this._emit(MessageTypes.MCU_ERROR, MessageTypes.ERR_GET_RECORD_PLAY_BACK_DATA_FAILED);
throw '';
}
})
.then(ret => {
if (ret) {
loger.log('读取回放数据-完成');
this._loadRecordDataSuccess(ret);
} else {
loger.warn('读取回放数据-失败.');
this._emit(MessageTypes.MCU_ERROR, MessageTypes.ERR_GET_RECORD_PLAY_BACK_DATA_FAILED);
}
})
.catch(err => {
loger.error(`读取回放数据.状态码:${err}`);
this._emit(MessageTypes.MCU_ERROR, MessageTypes.ERR_GET_RECORD_PLAY_BACK_DATA_FAILED);
});
}
_loadRecordDataSuccess(arrayBuffer){
loger.log("获取录制回放数据的长度",arrayBuffer.byteLength);
if(parseBuffer){
parseBuffer.clear();
parseBuffer.append(arrayBuffer);
}
this._emit(RecordPlayBackParse.CLASS_JOIN_RECORD_PLAYBACK_SUCCESS);
}
addArrayBuffer(arrayBuffer) {
loger.log("addArrayBuffer", arrayBuffer.byteLength);
parseBuffer.append(arrayBuffer, "binary");
}
read() {
//loger.log("readUInt64", parseBuffer.readUInt64(0));
//loger.log("readUInt32", parseBuffer.readUInt32(8));
//loger.log("readByte", parseBuffer.readByte(12));
let byteLength=parseBuffer.offset;
parseBuffer.byteOffset=0;
var position = 0;
while (position<byteLength){
var time = parseBuffer.readUInt64(position, true);
position += 8;
var len = parseBuffer.readUInt32(position, true);
position += 4;
var byte = parseBuffer.buffer.slice(position, (position+len));
position += len;
console.log(time, len, byte);
this._everSocketMsgReceivedHandler(byte);
}
}
writeBuffer() {
parseBuffer.writeUint64(123456789, 0).flip();
parseBuffer.writeUint32(22211122, 8).flip();
}
startRecordPlayback(_param) {
}
stopRecordPlayback(_param) {
}
pauseRecordPlayback(_param) {
}
seekRecordPlayback(_param) {
}
}
RecordPlayBackParse.prototype.CLASS_JOIN_RECORD_PLAYBACK_SUCCESS = RecordPlayBackParse.CLASS_JOIN_RECORD_PLAYBACK_SUCCESS = 'class_join_recordPlayback_success';//加入录制回放成功
export default new RecordPlayBackParse;