add audio worklet polyfill

Picovoice · Aug 19, 2022 · fd02a9b · fd02a9b
1 parent ab54dac
commit fd02a9b
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Showing 7 changed files with 61 additions and 18 deletions.
diff --git a/demo/package.json b/demo/package.json
@@ -17,7  17,7 @@
   "author": "Picovoice Inc",
   "license": "Apache-2.0",
   "dependencies": {
-    "@picovoice/web-voice-processor": "^3.0.0",
     "@picovoice/web-voice-processor": "^3.0.1",
     "http-server": "^14.0.0",
     "wavefile": "^11.0.0"
   }

diff --git a/demo/yarn.lock b/demo/yarn.lock
@@ -2,10  2,10 @@
 # yarn lockfile v1
 
 
-"@picovoice/web-voice-processor@^3.0.0":
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/@picovoice/web-voice-processor/-/web-voice-processor-3.0.0.tgz#0dbdbcfa79022fc54f6b51ee4294efb847fd736f"
-  integrity sha512-EtkCvUOklmWESabT2rVfrHsUGugg6zj1JBV9Jl9h7nzaGVXPMhDVuiwtZpT8TFVSLKXNOV31QsoSHnzN2CYjvQ==
 "@picovoice/web-voice-processor@^3.0.1":
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/@picovoice/web-voice-processor/-/web-voice-processor-3.0.1.tgz#e2adf41efe31971a58fa5f5ac09f34daab7dff72"
   integrity sha512- B23Yj leSm6Kk Pv2K94X2yZF2ccapFrCOMZ90G4uJmZqeLpTkSrz7UI43vJgdxMc0dp lS0lP2zMtpzxW5HA==
 
 async@^2.6.2:
   version "2.6.3"

diff --git a/package.json b/package.json
@@ -1,6  1,6 @@
 {
   "name": "@picovoice/web-voice-processor",
-  "version": "3.0.0",
   "version": "3.0.1",
   "description": "Real-time audio processing for voice, in web browsers",
   "entry": "src/index.ts",
   "module": "dist/esm/index.js",
@@ -48,7  48,6 @@
     "@babel/plugin-transform-runtime": "^7.18.2",
     "@babel/preset-env": "^7.18.2",
     "@babel/runtime": "^7.18.3",
-    "@free-side/audioworklet-polyfill": "^1.1.3-beta.4",
     "@picovoice/web-utils": "=1.2.3",
     "@rollup/plugin-babel": "^5.3.1",
     "@rollup/plugin-commonjs": "^18.1.0",

diff --git a/src/index.ts b/src/index.ts
@@ -1,4  1,4 @@
-import '@free-side/audioworklet-polyfill';
 import './polyfill/audioworklet_polyfill';
 
 import { WvpMessageEvent, WebVoiceProcessorOptions } from './types';
 

diff --git a/src/polyfill/audioworklet_polyfill.ts b/src/polyfill/audioworklet_polyfill.ts
@@ -0,0  1,51 @@
 /*
   Copyright 2021 Picovoice Inc.
 
   You may not use this file except in compliance with the license. A copy of the license is located in the "LICENSE"
   file accompanying this source.
 
   Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
   an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
   specific language governing permissions and limitations under the License.
 */
 
 type ProcessorPolyfill = {
   port?: {
     onmessage?: (event: MessageEvent<{ buffer: Float32Array[] }>) => void;
   }
 };
 
 // @ts-ignore window.webkitAudioContext
 window.AudioContext = window.AudioContext || window.webkitAudioContext;
 
 if (typeof AudioWorkletNode !== 'function' || !('audioWorklet' in AudioContext.prototype)) {
   // @ts-ignore
   AudioContext.prototype.audioWorklet = {
     addModule: async function(moduleURL: string | URL, options?: WorkletOptions): Promise<void> {
       return;
     },
   };
 
   // @ts-ignore
   // eslint-disable-next-line no-native-reassign
   window.AudioWorkletNode = function(context: AudioContext, processorName: string, options: any): ScriptProcessorNode {
     const { numberOfChannels = 1, frameLength = 512 } = options && options.processorOptions;
     const scriptProcessor: ScriptProcessorNode & ProcessorPolyfill = context.createScriptProcessor(frameLength, numberOfChannels, numberOfChannels);
 
     if (!scriptProcessor.port) {
       scriptProcessor.port = {};
     }
 
     scriptProcessor.onaudioprocess = (event: AudioProcessingEvent): void => {
       if (scriptProcessor.port && scriptProcessor.port.onmessage) {
         const buffer = [];
         for (let i = 0; i < event.inputBuffer.numberOfChannels; i  ) {
           buffer.push(event.inputBuffer.getChannelData(i));
         }
         scriptProcessor.port.onmessage({ data: { buffer } } as MessageEvent);
       }
     };
 
     return scriptProcessor;
   };
 }
diff --git a/src/web_voice_processor.ts b/src/web_voice_processor.ts
@@ -19,9  19,6 @@ import { PvEngine, WebVoiceProcessorOptions } from './types';
 import { AudioDumpEngine } from './engines/audio_dump_engine';
 import VuMeterWorker from 'web-worker:./engines/vu_meter_worker.ts';
 
-// @ts-ignore window.webkitAudioContext
-window.AudioContext = window.AudioContext || window.webkitAudioContext;
-
 /**
  * Obtain microphone permission and audio stream;
  * Down sample audio into 16kHz single-channel PCM for speech recognition (via DownsamplerWorker).
@@ -53,9  50,9 @@ export class WebVoiceProcessor {
    * @param options Startup options.
    * @return WebVoiceProcessor singleton.
    */
-  public static async instance(
   public static instance(
     options: WebVoiceProcessorOptions = {},
-  ): Promise<WebVoiceProcessor> {
   ): WebVoiceProcessor {
     if (!this._instance) {
       this._instance = new WebVoiceProcessor(options);
     } else {
@@ -266,6  263,7 @@ export class WebVoiceProcessor {
       'recorder-processor',
       {
         processorOptions: {
           frameLength,
           numberOfChannels
         }
       }

diff --git a/yarn.lock b/yarn.lock
@@ -1231,11  1231,6 @@
     minimatch "^3.1.2"
     strip-json-comments "^3.1.1"
 
-"@free-side/audioworklet-polyfill@^1.1.3-beta.4":
-  version "1.1.3-beta.4"
-  resolved "https://registry.yarnpkg.com/@free-side/audioworklet-polyfill/-/audioworklet-polyfill-1.1.3-beta.4.tgz#97143ccfd1ef96082f6849767bf4939fc2fb8927"
-  integrity sha512-w6Rub/Mu9BAdWvJaCsATqR0L/SEiRM6neQ73g8fcjxBzRfjC90C4e0TZ7nQ0qNzufh2tu83b14kI/j0JzlgPzQ==
-
 "@humanwhocodes/config-array@^0.10.4":
   version "0.10.4"
   resolved "https://registry.yarnpkg.com/@humanwhocodes/config-array/-/config-array-0.10.4.tgz#01e7366e57d2ad104feea63e72248f22015c520c"