视频组件依赖

public/transform/systemTransform-worker.js

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