initial commit

2024-01-23 18:32:40 -08:00
commit 8e50c2f84e
11 changed files with 1420 additions and 0 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1,3 @@
+node_modules
+.idea
+.vscode
--- a/.prettierrc
+++ b/.prettierrc
@@ -0,0 +1,20 @@
+{
+  "singleQuote": true,
+  "jsxSingleQuote": false,
+  "trailingComma": "all",
+  "printWidth": 100,
+  "useTabs": false,
+  "tabWidth": 2,
+  "semi": true,
+  "quoteProps": "as-needed",
+  "bracketSpacing": true,
+  "bracketSameLine": false,
+  "arrowParens": "always",
+  "singleAttributePerLine": false,
+  "overrides": [
+    {
+      "files": ".prettierrc",
+      "options": { "parser": "json" }
+    }
+  ]
+}
--- a/README.md
+++ b/README.md
@@ -0,0 +1,47 @@
+# Streaming Avatar Demo
+
+## Pre-Requisites
+
+- **_Apply for becoming a real-time avatar whitelist user_**
+- Node.js and npm installed on your system.
+- API key for HeyGen's API.
+
+## Run the Demo
+
+1. Clone the repository.
+
+   ```
+   git clone https://github.com/HeyGen-Official/StreamingAvatar.git
+   ```
+
+2. Open the `api.json` file and replace `'YourApiKey'` with your API key:
+
+   ```
+   "apiKey": "YourApiKey";
+   ```
+
+3. open a terminal in the folder and then install the express and run the server.js:
+
+   ```
+   npm install express
+   node server.js
+   ```
+
+4. you will see `App is listening on port 3000!`.
+
+## Use the Demo
+
+0. Make sure you are whitelisted to use the HeyGen's real-time avatar API.
+1. Open the web browser and enter the `http://localhost:3000`to start the demo.
+2. Click the "New" button to create a new session. The status updates will be displayed on the screen.
+3. After the session is created successfully, click the "Start" button to start streaming the avatar.
+4. To send a task to the avatar, type the text in the provided input field and click the "Repeat Text" button.
+5. Once done, click the "Close Connection" button to close the session.
+
+Remember, this is a demo and should be modified according to your needs and preferences. Happy coding!
+
+## Troubleshooting
+
+In case you face any issues while running the demo or have any questions, feel free to raise an issue in this repository or contact our support team.
+
+Please note, if you encounter a "Server Error", it could be due to the server being offline. In such cases, please contact the service provider.
--- a/api.json
+++ b/api.json
@@ -0,0 +1,4 @@
+{
+  "apiKey": "YourApiKey",
+  "serverUrl": "https://api.heygen.com"
+}
--- a/favicon.ico
+++ b/favicon.ico
--- a/index.css
+++ b/index.css
@@ -0,0 +1,210 @@
+* {
+  padding: 0;
+  margin: 0;
+  box-sizing: border-box;
+}
+
+body {
+  font-family: Arial, sans-serif;
+  background-color: #f5f5f5;
+  padding: 24px;
+}
+
+.main {
+  display: flex;
+  flex-direction: column;
+  gap: 24px;
+}
+
+.actionRowsWrap {
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+}
+
+.actionRow {
+  display: flex;
+  align-items: center;
+  flex-wrap: wrap;
+  gap: 12px;
+}
+
+.actionRow label {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+
+button {
+  display: inline-block;
+  padding: 0 16px;
+  border-radius: 8px;
+  height: 40px;
+
+  background-color: #4caf50; /* Green */
+  border: none;
+
+  color: #fff;
+  text-align: center;
+  font-size: 16px;
+
+  cursor: pointer;
+  transition-duration: 0.4s;
+}
+
+button:hover {
+  background-color: #45a049;
+}
+
+input {
+  height: 40px;
+  padding: 0 12px;
+
+  font-size: 16px;
+}
+
+#status {
+  overflow: auto;
+
+  background-color: #fff;
+  height: 120px;
+  padding: 10px 12px;
+
+  border: 1px solid #ccc;
+  border-radius: 8px;
+
+  font-size: 14px;
+  line-height: 1.6;
+}
+
+.videoSectionWrap {
+  position: relative;
+
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 12px;
+}
+
+.actionRow.switchRow {
+  width: 100%;
+
+  justify-content: center;
+}
+.switchRow {
+  flex-direction: column;
+}
+.switchRow > label {
+  width: 100%;
+
+  display: flex;
+  justify-content: center;
+}
+
+.switchRow > label input {
+  flex: 1;
+  max-width: 500px;
+}
+
+.videoSectionWrap .videoWrap {
+  display: flex;
+  justify-content: center;
+  align-items: center;
+
+  /*background: linear-gradient(0deg, rgba(0, 0, 0, 0.02) 0%, rgba(0, 0, 0, 0.02) 100%),*/
+  /*  radial-gradient(*/
+  /*    108.09% 141.42% at 0% 100%,*/
+  /*    rgba(219, 255, 213, 0.3) 0%,*/
+  /*    rgba(255, 255, 255, 0) 100%*/
+  /*  ),*/
+  /*  linear-gradient(135deg, #ffeede 5.71%, #ffd9d9 47%, #a3dce7 93.47%);*/
+}
+
+.videoWrap .videoEle {
+  width: 100%;
+  max-height: 400px;
+}
+
+/*---------- Switch START ----------*/
+.switchWrap {
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  gap: 8px;
+}
+
+.switch {
+  position: relative;
+  display: inline-block;
+  width: 60px;
+  height: 34px;
+}
+
+.switch input {
+  opacity: 0;
+  width: 0;
+  height: 0;
+}
+
+.slider {
+  position: absolute;
+  cursor: pointer;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  background-color: #ccc;
+  -webkit-transition: 0.4s;
+  transition: 0.4s;
+}
+
+.slider:before {
+  position: absolute;
+  content: '';
+  height: 26px;
+  width: 26px;
+  left: 4px;
+  bottom: 4px;
+  background-color: white;
+  -webkit-transition: 0.4s;
+  transition: 0.4s;
+}
+
+input:checked + .slider {
+  background-color: #2196f3;
+}
+
+input:focus + .slider {
+  box-shadow: 0 0 1px #2196f3;
+}
+
+input:checked + .slider:before {
+  -webkit-transform: translateX(26px);
+  -ms-transform: translateX(26px);
+  transform: translateX(26px);
+}
+
+/* Rounded sliders */
+.slider.round {
+  border-radius: 34px;
+}
+
+.slider.round:before {
+  border-radius: 50%;
+}
+/*---------- Switch END ----------*/
+
+.videoSectionWrap .hide {
+  display: none;
+}
+
+.videoSectionWrap .show {
+  display: flex;
+}
+
+.hide {
+  display: none;
+}
+.show {
+  display: flex;
+}
--- a/index.html
+++ b/index.html
@@ -0,0 +1,68 @@
+<!doctype html>
+<html>
+  <head>
+    <link rel="stylesheet" href="index.css" />
+    <link rel="icon" href="./favicon.ico" />
+  </head>
+
+  <body>
+    <div class="main">
+      <div class="actionRowsWrap">
+        <div class="actionRow">
+          <label>
+            AvatarName
+            <input id="avatarName" type="text" />
+          </label>
+
+          <label>
+            VoiceID
+            <input id="voiceID" type="text" />
+          </label>
+
+          <button id="newBtn">New</button>
+          <button id="startBtn">Start</button>
+          <button id="closeBtn">Close</button>
+        </div>
+
+        <div class="actionRow">
+          <label>
+            Message
+            <input id="taskInput" type="text" />
+          </label>
+          <button id="talkBtn">Talk</button>
+          <button id="repeatBtn">Repeat</button>
+        </div>
+      </div>
+
+      <p id="status"></p>
+
+      <div class="videoSectionWrap">
+        <div class="videoWrap">
+          <video id="mediaElement" class="videoEle show" autoplay></video>
+          <canvas id="canvasElement" class="videoEle hide"></canvas>
+        </div>
+
+        <div class="actionRow switchRow hide" id="bgCheckboxWrap">
+          <div class="switchWrap">
+            <span>Remove background</span>
+            <label class="switch">
+              <input type="checkbox" id="removeBGCheckbox" />
+              <span class="slider round"></span>
+            </label>
+          </div>
+
+          <label>
+            Background (CSS)
+            <input
+              type="text"
+              id="bgInput"
+              value='url("https://app.heygen.com/icons/heygen/logo_hori_text_light_bg.svg") center / contain no-repeat'
+            />
+          </label>
+        </div>
+      </div>
+    </div>
+
+    <script type="module" src="index.js"></script>
+  </body>
+</html>
--- a/index.js
+++ b/index.js
@@ -0,0 +1,422 @@
+'use strict';
+
+import heygen_API from './api.json' assert { type: 'json' };
+
+const statusElement = document.querySelector('#status');
+const apiKey = heygen_API.apiKey;
+const SERVER_URL = heygen_API.serverUrl;
+
+if (apiKey === 'YourApiKey' || SERVER_URL === '') {
+  alert('Please enter your API key and server URL in the api.json file');
+}
+
+let sessionInfo = null;
+let peerConnection = null;
+
+function updateStatus(statusElement, message) {
+  statusElement.innerHTML += message + '<br>';
+  statusElement.scrollTop = statusElement.scrollHeight;
+}
+
+updateStatus(statusElement, 'Please click the new button to create the stream first.');
+
+function onMessage(event) {
+  const message = event.data;
+  console.log('Received message:', message);
+}
+
+// Create a new WebRTC session when clicking the "New" button
+async function createNewSession() {
+  updateStatus(statusElement, 'Creating new session... please wait');
+
+  const avatar = avatarName.value;
+  const voice = voiceID.value;
+
+  // call the new interface to get the server's offer SDP and ICE server to create a new RTCPeerConnection
+  sessionInfo = await newSession('high', avatar, voice);
+  const { sdp: serverSdp, ice_servers2: iceServers } = sessionInfo;
+
+  // Create a new RTCPeerConnection
+  peerConnection = new RTCPeerConnection({ iceServers: iceServers });
+
+  // When ICE candidate is available, send to the server
+  peerConnection.onicecandidate = ({ candidate }) => {
+    console.log('Received ICE candidate:', candidate);
+    if (candidate) {
+      handleICE(sessionInfo.session_id, candidate.toJSON());
+    }
+  };
+
+  // When ICE connection state changes, display the new state
+  peerConnection.oniceconnectionstatechange = (event) => {
+    updateStatus(
+      statusElement,
+      `ICE connection state changed to: ${peerConnection.iceConnectionState}`,
+    );
+  };
+
+  // When audio and video streams are received, display them in the video element
+  peerConnection.ontrack = (event) => {
+    console.log('Received the track');
+    if (event.track.kind === 'audio' || event.track.kind === 'video') {
+      mediaElement.srcObject = event.streams[0];
+    }
+  };
+
+  // When receiving a message, display it in the status element
+  peerConnection.ondatachannel = (event) => {
+    const dataChannel = event.channel;
+    dataChannel.onmessage = onMessage;
+  };
+
+  // Set server's SDP as remote description
+  const remoteDescription = new RTCSessionDescription(serverSdp);
+  await peerConnection.setRemoteDescription(remoteDescription);
+
+  updateStatus(statusElement, 'Session creation completed');
+  updateStatus(statusElement, 'Now.You can click the start button to start the stream');
+}
+
+// Start session and display audio and video when clicking the "Start" button
+async function startAndDisplaySession() {
+  if (!sessionInfo) {
+    updateStatus(statusElement, 'Please create a connection first');
+    return;
+  }
+
+  updateStatus(statusElement, 'Starting session... please wait');
+
+  // Create and set local SDP description
+  const localDescription = await peerConnection.createAnswer();
+  await peerConnection.setLocalDescription(localDescription);
+
+  // Start session
+  await startSession(sessionInfo.session_id, localDescription);
+  updateStatus(statusElement, 'Session started successfully');
+}
+
+const taskInput = document.querySelector('#taskInput');
+
+// When clicking the "Send Task" button, get the content from the input field, then send the tas
+async function talkHandler() {
+  if (!sessionInfo) {
+    updateStatus(statusElement, 'Please create a connection first');
+
+    return;
+  }
+  updateStatus(statusElement, 'Sending task... please wait');
+  const text = taskInput.value;
+  if (text.trim() === '') {
+    alert('Please enter a task');
+    return;
+  }
+
+  const resp = await talk(sessionInfo.session_id, text);
+
+  updateStatus(statusElement, 'Task sent successfully');
+}
+
+// When clicking the "Send Task" button, get the content from the input field, then send the tas
+async function repeatHandler() {
+  if (!sessionInfo) {
+    updateStatus(statusElement, 'Please create a connection first');
+
+    return;
+  }
+  updateStatus(statusElement, 'Sending task... please wait');
+  const text = taskInput.value;
+  if (text.trim() === '') {
+    alert('Please enter a task');
+    return;
+  }
+
+  const resp = await repeat(sessionInfo.session_id, text);
+
+  updateStatus(statusElement, 'Task sent successfully');
+}
+
+// when clicking the "Close" button, close the connection
+async function closeConnectionHandler() {
+  if (!sessionInfo) {
+    updateStatus(statusElement, 'Please create a connection first');
+    return;
+  }
+
+  renderID++;
+  hideElement(canvasElement);
+  hideElement(bgCheckboxWrap);
+  mediaCanPlay = false;
+
+  updateStatus(statusElement, 'Closing connection... please wait');
+  try {
+    // Close local connection
+    peerConnection.close();
+    // Call the close interface
+    const resp = await stopSession(sessionInfo.session_id);
+
+    console.log(resp);
+  } catch (err) {
+    console.error('Failed to close the connection:', err);
+  }
+  updateStatus(statusElement, 'Connection closed successfully');
+}
+
+document.querySelector('#newBtn').addEventListener('click', createNewSession);
+document.querySelector('#startBtn').addEventListener('click', startAndDisplaySession);
+document.querySelector('#talkBtn').addEventListener('click', talkHandler);
+document.querySelector('#repeatBtn').addEventListener('click', repeatHandler);
+document.querySelector('#closeBtn').addEventListener('click', closeConnectionHandler);
+
+// new session
+async function newSession(quality, avatar_name, voice_id) {
+  const response = await fetch(`${SERVER_URL}/v1/streaming.new`, {
+    method: 'POST',
+    headers: {
+      'Content-Type': 'application/json',
+      'X-Api-Key': apiKey,
+    },
+    body: JSON.stringify({
+      quality,
+      avatar_name,
+      voice: {
+        voice_id: voice_id,
+      },
+    }),
+  });
+  if (response.status === 500) {
+    console.error('Server error');
+    updateStatus(
+      statusElement,
+      'Server Error. Please ask the staff if the service has been turned on',
+    );
+
+    throw new Error('Server error');
+  } else {
+    const data = await response.json();
+    console.log(data.data);
+    return data.data;
+  }
+}
+
+// start the session
+async function startSession(session_id, sdp) {
+  const response = await fetch(`${SERVER_URL}/v1/streaming.start`, {
+    method: 'POST',
+    headers: {
+      'Content-Type': 'application/json',
+      'X-Api-Key': apiKey,
+    },
+    body: JSON.stringify({ session_id, sdp }),
+  });
+  if (response.status === 500) {
+    console.error('Server error');
+    updateStatus(
+      statusElement,
+      'Server Error. Please ask the staff if the service has been turned on',
+    );
+    throw new Error('Server error');
+  } else {
+    const data = await response.json();
+    return data.data;
+  }
+}
+
+// submit the ICE candidate
+async function handleICE(session_id, candidate) {
+  const response = await fetch(`${SERVER_URL}/v1/streaming.ice`, {
+    method: 'POST',
+    headers: {
+      'Content-Type': 'application/json',
+      'X-Api-Key': apiKey,
+    },
+    body: JSON.stringify({ session_id, candidate }),
+  });
+  if (response.status === 500) {
+    console.error('Server error');
+    updateStatus(
+      statusElement,
+      'Server Error. Please ask the staff if the service has been turned on',
+    );
+    throw new Error('Server error');
+  } else {
+    const data = await response.json();
+    return data;
+  }
+}
+
+async function talk(session_id, text) {
+  const task_type = 'talk';
+  const response = await fetch(`${SERVER_URL}/v1/streaming.task`, {
+    method: 'POST',
+    headers: {
+      'Content-Type': 'application/json',
+      'X-Api-Key': apiKey,
+    },
+    body: JSON.stringify({ session_id, text, task_type }),
+  });
+  if (response.status === 500) {
+    console.error('Server error');
+    updateStatus(
+      statusElement,
+      'Server Error. Please ask the staff if the service has been turned on',
+    );
+    throw new Error('Server error');
+  } else {
+    const data = await response.json();
+    return data.data;
+  }
+}
+
+// repeat the text
+async function repeat(session_id, text) {
+  const task_type = 'repeat';
+  const response = await fetch(`${SERVER_URL}/v1/streaming.task`, {
+    method: 'POST',
+    headers: {
+      'Content-Type': 'application/json',
+      'X-Api-Key': apiKey,
+    },
+    body: JSON.stringify({ session_id, text, task_type }),
+  });
+  if (response.status === 500) {
+    console.error('Server error');
+    updateStatus(
+      statusElement,
+      'Server Error. Please ask the staff if the service has been turned on',
+    );
+    throw new Error('Server error');
+  } else {
+    const data = await response.json();
+    return data.data;
+  }
+}
+
+// stop session
+async function stopSession(session_id) {
+  const response = await fetch(`${SERVER_URL}/v1/streaming.stop`, {
+    method: 'POST',
+    headers: {
+      'Content-Type': 'application/json',
+      'X-Api-Key': apiKey,
+    },
+    body: JSON.stringify({ session_id }),
+  });
+  if (response.status === 500) {
+    console.error('Server error');
+    updateStatus(statusElement, 'Server Error. Please ask the staff for help');
+    throw new Error('Server error');
+  } else {
+    const data = await response.json();
+    return data.data;
+  }
+}
+
+const removeBGCheckbox = document.querySelector('#removeBGCheckbox');
+removeBGCheckbox.addEventListener('click', () => {
+  const isChecked = removeBGCheckbox.checked; // status after click
+
+  if (isChecked && !sessionInfo) {
+    updateStatus(statusElement, 'Please create a connection first');
+    removeBGCheckbox.checked = false;
+    return;
+  }
+
+  if (isChecked && !mediaCanPlay) {
+    updateStatus(statusElement, 'Please wait for the video to load');
+    removeBGCheckbox.checked = false;
+    return;
+  }
+
+  if (isChecked) {
+    hideElement(mediaElement);
+    showElement(canvasElement);
+
+    renderCanvas();
+  } else {
+    hideElement(canvasElement);
+    showElement(mediaElement);
+
+    renderID++;
+  }
+});
+
+let renderID = 0;
+function renderCanvas() {
+  if (!removeBGCheckbox.checked) return;
+  hideElement(mediaElement);
+  showElement(canvasElement);
+
+  canvasElement.classList.add('show');
+
+  const curRenderID = Math.trunc(Math.random() * 1000000000);
+  renderID = curRenderID;
+
+  const ctx = canvasElement.getContext('2d', { willReadFrequently: true });
+
+  if (bgInput.value) {
+    canvasElement.parentElement.style.background = bgInput.value?.trim();
+  }
+
+  function processFrame() {
+    if (!removeBGCheckbox.checked) return;
+    if (curRenderID !== renderID) return;
+
+    canvasElement.width = mediaElement.videoWidth;
+    canvasElement.height = mediaElement.videoHeight;
+
+    ctx.drawImage(mediaElement, 0, 0, canvasElement.width, canvasElement.height);
+    ctx.getContextAttributes().willReadFrequently = true;
+    const imageData = ctx.getImageData(0, 0, canvasElement.width, canvasElement.height);
+    const data = imageData.data;
+
+    for (let i = 0; i < data.length; i += 4) {
+      const red = data[i];
+      const green = data[i + 1];
+      const blue = data[i + 2];
+
+      // You can implement your own logic here
+      if (isCloseToGreen([red, green, blue])) {
+        // if (isCloseToGray([red, green, blue])) {
+        data[i + 3] = 0;
+      }
+    }
+
+    ctx.putImageData(imageData, 0, 0);
+
+    requestAnimationFrame(processFrame);
+  }
+
+  processFrame();
+}
+
+function isCloseToGreen(color) {
+  const [red, green, blue] = color;
+  return green > 90 && red < 90 && blue < 90;
+}
+
+function hideElement(element) {
+  element.classList.add('hide');
+  element.classList.remove('show');
+}
+function showElement(element) {
+  element.classList.add('show');
+  element.classList.remove('hide');
+}
+
+const mediaElement = document.querySelector('#mediaElement');
+let mediaCanPlay = false;
+mediaElement.onloadedmetadata = () => {
+  mediaCanPlay = true;
+  mediaElement.play();
+
+  showElement(bgCheckboxWrap);
+};
+const canvasElement = document.querySelector('#canvasElement');
+
+const bgCheckboxWrap = document.querySelector('#bgCheckboxWrap');
+const bgInput = document.querySelector('#bgInput');
+bgInput.addEventListener('keydown', (e) => {
+  if (e.key === 'Enter') {
+    renderCanvas();
+  }
+});
--- a/package-lock.json
+++ b/package-lock.json
@@ -0,0 +1,622 @@
+{
+  "name": "streamingavatar",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "streamingavatar",
+      "version": "1.0.0",
+      "license": "ISC",
+      "dependencies": {
+        "express": "^4.18.2"
+      },
+      "devDependencies": {
+        "prettier": "^3.2.4"
+      }
+    },
+    "node_modules/accepts": {
+      "version": "1.3.8",
+      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz",
+      "integrity": "sha512-PYAthTa2m2VKxuvSD3DPC/Gy+U+sOA1LAuT8mkmRuvw+NACSaeXEQ+NHcVF7rONl6qcaxV3Uuemwawk+7+SJLw==",
+      "dependencies": {
+        "mime-types": "~2.1.34",
+        "negotiator": "0.6.3"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/array-flatten": {
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+    "node_modules/utils-merge": {
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+      "engines": {
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+    "node_modules/vary": {
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+  }
+}
--- a/package.json
+++ b/package.json
@@ -0,0 +1,15 @@
+{
+  "name": "streamingavatar",
+  "version": "1.0.0",
+  "description": "## Pre-Requisites",
+  "main": "index.js",
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "express": "^4.18.2"
+  },
+  "devDependencies": {
+    "prettier": "^3.2.4"
+  }
+}
--- a/server.js
+++ b/server.js
@@ -0,0 +1,9 @@
+const express = require('express');
+const path = require('path');
+const app = express();
+
+app.use(express.static(path.join(__dirname, '.')));
+
+app.listen(3000, function () {
+  console.log('App is listening on port 3000!');
+});