引入海康威视插件

web/public/codebase/jsPlugin/audioMixer/audioMixer-worker.js

@@ -0,0 +1,87 @@
+importScripts('AudioAMER.js');
+
+let channelNum = 2;           // 通道数（需求上只需要2通道，不用改）
+let sampleRate = 32000;       // 采样率，支持8K/16K/32K/48K
+let bitsPerSample = 16;       // 采样精度，支持16/32
+let dataLen = 320;            // 一帧数据长度（采样点数），320个16位采样点即640B，支持4/8/10/16/20/24/30/32/40ms
+
+// self.JSAudioCodecModule['onRuntimeInitialized'] = function () {
+//   JSAudioCodecModule().then(instance => {
+//     AudioModule = instance;
+//   });
+//   postMessage({type: "loaded"});
+// };
+
+JSAudioCodecModule().then(instance => {
+  AudioModule = instance;
+  postMessage({type: "loaded"});
+});
+
+onmessage = function (e) {
+  let data = e.data;
+  if ("create" === data.type) {
+    let size = AudioModule._malloc(4);
+    let alignment = AudioModule._malloc(4);
+    if (size === null || alignment === null) {
+      console.log("inputdata malloc failed!!!");
+      return -1;
+    }
+    channelNum = data.channelNum;
+    sampleRate = data.sampleRate;
+    bitsPerSample = data.bitsPerSample;
+    dataLen = data.dataLen;
+
+    let iRet = AudioModule._JSHIK_AMER_GetMemSize(channelNum, sampleRate, bitsPerSample, dataLen, size, alignment);
+    if (iRet !== 1) {
+      console.log("_CreatHandle failed!" + iRet);
+    } else {
+      let sizeOut = AudioModule.getValue(size, "i32");
+      let alignmentOut = AudioModule.getValue(alignment, "i32");
+      iRet = AudioModule._JSHIK_AMER_Create(channelNum, sampleRate, bitsPerSample, dataLen, sizeOut, alignmentOut);
+      console.log("Create_res:" + iRet);
+      postMessage({type: "created"});
+    }
+    if (size !== null) {
+      AudioModule._free(size);
+      size = null;
+    }
+    if (alignment !== null) {
+      AudioModule._free(alignment);
+      alignment = null;
+    }
+  } else if ("inputData" === data.type) {
+    let inputSize = dataLen * 2;//dataLen为320，inputSize应该是 320 * 2 = 640
+    let pInputData1 = AudioModule._malloc(inputSize);
+    let pInputData2 = AudioModule._malloc(inputSize);
+    
+    let pOutputData1 = AudioModule._malloc(inputSize);
+    let pOutputData2 = AudioModule._malloc(inputSize);
+    let pOutputData3 = AudioModule._malloc(inputSize);
+    if (pInputData1 === null || pInputData2 === null || pOutputData1 === null || pOutputData2 === null || pOutputData3 === null) {
+      console.log("inputdata or outputData malloc failed!!!");
+      return -1;
+    }
+    let inputData1 = new Uint8Array(data.buf1);
+    let inputData2 = new Uint8Array(data.buf2);
+    AudioModule.writeArrayToMemory(inputData1, pInputData1);
+    AudioModule.writeArrayToMemory(inputData2, pInputData2);
+    inputData1 = null;
+    inputData2 = null;
+    // 开始处理
+    let res = AudioModule._JSHIK_AMER_Process(pInputData1, pInputData2, pOutputData1, pOutputData2, pOutputData3, parseInt(inputSize / 2, 10));
+    if (res === 1) {
+      let aOutputData = new Uint8Array(inputSize);
+      aOutputData.set(AudioModule.HEAPU8.subarray(pOutputData3, pOutputData3 + inputSize));	 // 必须取pOutputData3的数据
+      // postMessage({ type: "outputData", buf: aOutputData}, [aOutputData]);
+      postMessage({ type: "outputData", dType: 1, buf: aOutputData.buffer}, [aOutputData.buffer]);
+    }
+    AudioModule._free(pInputData1);
+    AudioModule._free(pInputData2);
+    AudioModule._free(pOutputData1);
+    AudioModule._free(pOutputData2);
+    AudioModule._free(pOutputData3);
+  } else if ("release" === data.type) {
+    //奇怪，到时和研究院确认一下，库为什么不提供释放资源或者停止的接口？？
+    close();
+  }
+};