120 lines
4.9 KiB
JavaScript
120 lines
4.9 KiB
JavaScript
importScripts('libSystemTransform.js');
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const RECORDRTP = 0; //录制一份未经过转封装的码流原始数据，用于定位问题
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let dataType = 1;
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// 转封装库回调函数
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self.STCallBack = function (fileIndex,indexLen, data, dataLen)
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{
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//stFrameInfo的类型见DETAIL_FRAME_INFO
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let stFrameInfo = Module._GetDetialFrameInfo();
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let nIsMp4Index = stFrameInfo.nIsMp4Index;
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//console.log("FrameType is " , stFrameInfo);
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//console.log("nIsMp4Index is " + nIsMp4Index);
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//debugger
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var pData = null;
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pData = new Uint8Array(dataLen);
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pData.set(Module.HEAPU8.subarray(data, data + dataLen));
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if (dataType === 1) {
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if (pData[0] == 0x49 && pData[1] == 0x4d && pData[2] == 0x4b && pData[3] == 0x48) {//码流头丢掉
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return;
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}
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postMessage({type: "outputData", buf: pData, dType: 1});
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dataType = 2;
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} else {
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if (nIsMp4Index) {
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postMessage({type: "outputData", buf: pData, dType: 6}); //6：索引类型
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} else {
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postMessage({type: "outputData", buf: pData, dType: 2}); //2:码流
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}
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}
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//stFrameInfo的类型见DETAIL_FRAME_INFO
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//let stFrameInfo = Module._GetDetialFrameInfo();
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//let stFrameType = stFrameInfo.nFrameType;
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//let nFrameNum = stFrameInfo.nFrameNum;
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//let nTimeStamp = stFrameInfo.nTimeStamp;
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//let nIsMp4Index = stFrameInfo.nIsMp4Index;
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//console.log("FrameType is " + stFrameType);
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//console.log("nIsMp4Index is " + nIsMp4Index);
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}
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// self.Module = { memoryInitializerRequest: loadMemInitFile(), TOTAL_MEMORY: 128*1024*1024 };
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// importScripts('SystemTransform.js');
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self.Module['onRuntimeInitialized'] = function (){
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postMessage({type: "loaded"});
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}
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onmessage = function (e) {
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var data = e.data;
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if ("create" === data.type) {
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if (RECORDRTP) {
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postMessage({type: "created"});
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postMessage({type: "outputData", buf: data.buf, dType: 1});
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} else {
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var iHeadLen = data.len;
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var pHead = Module._malloc(iHeadLen);
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self.writeArrayToMemory(new Uint8Array(data.buf), pHead);
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var iTransType = data.packType;//目标格式
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var iRet = Module._CreatHandle(pHead, iTransType, 4096);
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if (iRet != 0) {
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console.log("_CreatHandle failed!" + iRet);
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} else {
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iRet = Module._SysTransRegisterDataCallBack();
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if(iRet != 0)
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{
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console.log("_SysTransRegisterDataCallBack Failed:" + iRet);
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}
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iRet = Module._SysTransStart(null, null);
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if(iRet != 0)
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{
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console.log("_SysTransStart Failed:" + iRet);
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}
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postMessage({type: "created"});
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}
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}
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} else if ("inputData" === data.type) {
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if (RECORDRTP) {
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var aFileData = new Uint8Array(data.buf); // 拷贝一份
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var iBufferLen = aFileData.length;
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var szBufferLen = iBufferLen.toString(16);
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if (szBufferLen.length === 1) {
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szBufferLen = "000" + szBufferLen;
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} else if (szBufferLen.length === 2) {
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szBufferLen = "00" + szBufferLen;
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} else if (szBufferLen.length === 3) {
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szBufferLen = "0" + szBufferLen;
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}
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var aData = [0, 0, parseInt(szBufferLen.substring(0, 2), 16), parseInt(szBufferLen.substring(2, 4), 16)];
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for(var iIndex = 0, iDataLength = aFileData.length; iIndex < iDataLength; iIndex++) {
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aData[iIndex + 4] = aFileData[iIndex]
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}
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var dataUint8 = new Uint8Array(aData);
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postMessage({type: "outputData", buf: dataUint8.buffer, dType: 2});
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} else {
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let pInputDataBuf = Module._malloc(data.len);
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var idataLen = data.len;
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self.writeArrayToMemory(new Uint8Array(data.buf), pInputDataBuf);
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// 输入数据，每次最多2m
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let pp = Module._SysTransInputData(0, pInputDataBuf, idataLen);
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if(pp != 0) {
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//console.log("InputData Failed:" + pp);
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}
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Module._free(pInputDataBuf);
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}
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} else if ("release" === data.type) {
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var iRet = Module._SysTransStop();
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if (iRet != 0) {
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console.log("_SysTransStop Failed:", iRet);
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}
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Module._SysTransRelease();
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if (iRet != 0) {
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console.log("_SysTransRelease Failed:", iRet);
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}
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close();
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}
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}; |