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Add peer coutns

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This commit is contained in:
Raven Scott 2024-11-23 05:06:43 -05:00
parent 18d282cd6c
commit 461884f5e6
2 changed files with 180 additions and 98 deletions
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222
app.js
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@ -7,32 +7,27 @@ let micStream;
let audioContext;
let isBroadcasting = false;
let conns = [];
let currentDeviceId = null; // To store the selected audio device ID
let currentDeviceId = null; // To store the selected audio input device ID
let accumulatedBuffer = b4a.alloc(0); // Buffer for accumulating received audio data
let stationKey = crypto.randomBytes(32); // Default random key for the station
document.addEventListener("DOMContentLoaded", () => {
document.getElementById('create-station').addEventListener('click', () => {
// Show the Create Station modal when clicking "Create Station" button
const createStationModal = new bootstrap.Modal(document.getElementById('createStationModal'));
createStationModal.show();
});
document.getElementById('generate-new-key').addEventListener('click', () => {
// Generate a new station key automatically
stationKey = crypto.randomBytes(32);
document.getElementById('existing-key').value = b4a.toString(stationKey, 'hex'); // Display the new key in the text box
document.getElementById('existing-key').value = b4a.toString(stationKey, 'hex');
});
document.getElementById('create-station-button').addEventListener('click', () => {
// Check if the user provided an existing key or use the generated one
const existingKey = document.getElementById('existing-key').value.trim();
stationKey = existingKey ? b4a.from(existingKey, 'hex') : stationKey;
// Set up the station with the chosen key
setupStation(stationKey);
// Hide the modal after setting up the station
const createStationModal = bootstrap.Modal.getInstance(document.getElementById('createStationModal'));
createStationModal.hide();
});
@ -44,17 +39,30 @@ document.addEventListener("DOMContentLoaded", () => {
document.getElementById('join-station-button').addEventListener('click', joinStation);
document.getElementById('apply-audio-source').addEventListener('click', applyAudioSource);
// document.getElementById('apply-output-device').addEventListener('click', applyOutputDevice);
// Populate the audio input source dropdown for the broadcaster
populateAudioInputSources();
populateAudioOutputSources();
});
// Function to populate audio input sources
// Update peer count in the UI
function updatePeerCount() {
const peerCount = conns.length;
const stationInfoElement = document.getElementById('station-info');
if (isBroadcasting) {
stationInfoElement.textContent = `Station ID: ${b4a.toString(stationKey, 'hex')}\nConnected Peers: ${peerCount}`;
} else {
stationInfoElement.textContent = `Station ID: ${b4a.toString(stationKey, 'hex')}\nConnected Peers: ${peerCount}`;
}
console.log(`Peer count updated: ${peerCount}`);
}
// Populate audio input sources
async function populateAudioInputSources() {
try {
const devices = await navigator.mediaDevices.enumerateDevices();
const audioInputSelect = document.getElementById('audio-input-select');
audioInputSelect.innerHTML = ''; // Clear existing options
audioInputSelect.innerHTML = '';
devices.forEach((device) => {
if (device.kind === 'audioinput') {
const option = document.createElement('option');
@ -63,26 +71,72 @@ async function populateAudioInputSources() {
audioInputSelect.appendChild(option);
}
});
// Set default device ID to the first option
currentDeviceId = audioInputSelect.value;
} catch (err) {
console.error("Error enumerating devices:", err);
}
}
// Function to apply selected audio source
// Populate audio output sources
async function populateAudioOutputSources() {
try {
const devices = await navigator.mediaDevices.enumerateDevices();
const audioOutputSelect = document.getElementById('audio-output-select');
audioOutputSelect.innerHTML = '';
devices.forEach((device) => {
if (device.kind === 'audiooutput') {
// const option = document.createElement('option');
// option.value = device.deviceId;
// option.textContent = device.label || `Speaker ${audioOutputSelect.length + 1}`;
// audioOutputSelect.appendChild(option);
}
});
} catch (err) {
console.error("Error enumerating output devices:", err);
}
}
// Apply the selected audio output device
// Apply the selected audio output device
async function applyOutputDevice() {
const selectedDeviceId = document.getElementById('audio-output-select').value;
try {
if (!selectedDeviceId) {
console.warn("No output device selected.");
return;
}
// Ensure there is a valid audio element
const audioElement = document.createElement('audio');
audioElement.autoplay = true; // Play automatically when data is received
audioElement.controls = true; // Debugging purposes (can be removed)
document.body.appendChild(audioElement); // Add temporarily for testing
// Set the audio sink to the selected device
if (typeof audioElement.setSinkId === 'function') {
await audioElement.setSinkId(selectedDeviceId);
console.log(`Audio output device applied: ${selectedDeviceId}`);
} else {
console.error("setSinkId is not supported in this browser.");
}
} catch (err) {
console.error("Error applying audio output device:", err);
}
}
// Apply the selected audio input source
async function applyAudioSource() {
const selectedDeviceId = document.getElementById('audio-input-select').value;
if (selectedDeviceId !== currentDeviceId) {
currentDeviceId = selectedDeviceId;
stopBroadcast(); // Stop current stream
startBroadcast(); // Restart stream with new device
stopBroadcast();
startBroadcast();
}
}
// Function to start broadcasting from the microphone
// Start broadcasting from the microphone
async function startBroadcast() {
if (isBroadcasting) stopBroadcast(); // Stop any existing broadcast
if (isBroadcasting) stopBroadcast();
try {
audioContext = new (window.AudioContext || window.webkitAudioContext)();
@ -98,8 +152,6 @@ async function startBroadcast() {
processor.onaudioprocess = (event) => {
const audioData = event.inputBuffer.getChannelData(0);
const buffer = b4a.from(new Float32Array(audioData).buffer);
// Send audio data to all connections
for (const conn of conns) {
conn.write(buffer);
}
@ -108,11 +160,11 @@ async function startBroadcast() {
isBroadcasting = true;
console.log("Broadcasting started.");
} catch (err) {
console.error("Error accessing microphone:", err);
console.error("Error starting broadcast:", err);
}
}
// Function to stop broadcasting and clean up resources
// Stop broadcasting
function stopBroadcast() {
if (!isBroadcasting) return;
@ -125,7 +177,7 @@ function stopBroadcast() {
audioContext.close();
audioContext = null;
}
accumulatedBuffer = b4a.alloc(0); // Reset accumulated buffer
accumulatedBuffer = b4a.alloc(0);
isBroadcasting = false;
console.log("Broadcasting stopped.");
}
@ -133,93 +185,108 @@ function stopBroadcast() {
// Broadcast a stop signal to all peers
function broadcastStopSignal() {
for (const conn of conns) {
conn.write(Buffer.alloc(0)); // Send an empty buffer as a stop signal
conn.write(Buffer.alloc(0));
}
}
// Function to create a broadcasting station
function processIncomingAudioData(data) {
// Ensure audioContext is initialized
if (!audioContext) {
audioContext = new (window.AudioContext || window.webkitAudioContext)();
console.log("AudioContext initialized.");
}
// Accumulate incoming data
accumulatedBuffer = b4a.concat([accumulatedBuffer, data]);
// Debug log for accumulated buffer size
console.log("Accumulated buffer size:", accumulatedBuffer.byteLength);
// Process audio data in chunks
while (accumulatedBuffer.byteLength >= 4096) {
try {
const chunkSize = 4096; // Process fixed-size chunks
const audioData = new Float32Array(accumulatedBuffer.slice(0, chunkSize).buffer);
accumulatedBuffer = accumulatedBuffer.slice(chunkSize); // Remove processed data
const sampleRate = audioContext.sampleRate || 44100; // Use context sample rate or default
const buffer = audioContext.createBuffer(1, audioData.length, sampleRate);
// Copy data to the audio buffer
buffer.copyToChannel(audioData, 0);
// Create and configure audio buffer source
const source = audioContext.createBufferSource();
source.buffer = buffer;
source.connect(audioContext.destination);
source.start();
// Debug log for processed audio chunk
console.log("Audio chunk processed and played. Chunk size:", chunkSize);
} catch (err) {
console.error("Error processing audio data:", err);
break; // Stop processing on error to prevent cascading issues
}
}
}
// Setup a broadcasting station
async function setupStation(key) {
swarm = new Hyperswarm();
swarm.join(key, { client: false, server: true });
// Show broadcaster controls
document.getElementById('broadcaster-controls').classList.remove('d-none');
// Update UI
document.getElementById('station-info').textContent = `Station ID: ${b4a.toString(key, 'hex')}`;
document.getElementById('setup').classList.add('d-none');
document.getElementById('controls').classList.remove('d-none');
// Start broadcasting as soon as the station is created
startBroadcast();
updatePeerCount();
// Listen for incoming connections
swarm.on('connection', (conn) => {
conns.push(conn);
console.log("Peer connected. Total peers:", conns.length);
updatePeerCount();
conn.once('close', () => {
conns.splice(conns.indexOf(conn), 1);
console.log("Peer disconnected.");
console.log("Peer disconnected. Total peers:", conns.length);
updatePeerCount();
});
conn.on('data', handleData);
// Add error handler to log disconnects and suppress crashes
conn.on('error', (err) => {
if (err.code === 'ECONNRESET') {
console.log("Peer connection reset by remote peer.");
} else {
console.error("Connection error:", err);
}
conns.splice(conns.indexOf(conn), 1);
updatePeerCount();
});
});
}
// Function to leave the station and stop broadcasting
// Leave the station
function leaveStation() {
if (swarm) swarm.destroy();
document.getElementById('setup').classList.remove('d-none');
document.getElementById('controls').classList.add('d-none');
// Hide broadcaster controls
document.getElementById('broadcaster-controls').classList.add('d-none');
stopBroadcast();
console.log("Left the station.");
}
// Function to handle incoming data from peers
// Handle incoming data from peers
function handleData(data) {
if (data.length === 0) {
console.log("Received stop command from peer");
stopBroadcast();
} else {
processIncomingAudioData(data);
}
}
// Function to process and play incoming audio data
function processIncomingAudioData(data) {
if (!audioContext) {
audioContext = new (window.AudioContext || window.webkitAudioContext)();
}
accumulatedBuffer = b4a.concat([accumulatedBuffer, data]);
while (accumulatedBuffer.byteLength >= 4) {
const chunkSize = accumulatedBuffer.byteLength;
const audioData = new Float32Array(accumulatedBuffer.slice(0, chunkSize).buffer);
accumulatedBuffer = accumulatedBuffer.slice(chunkSize);
const buffer = audioContext.createBuffer(1, audioData.length, audioContext.sampleRate);
buffer.copyToChannel(audioData, 0);
const source = audioContext.createBufferSource();
source.buffer = buffer;
source.connect(audioContext.destination);
source.start();
}
}
// Function to join an existing station
// Join an existing station
async function joinStation() {
const stationId = document.getElementById('station-id').value;
if (!stationId) {
@ -227,7 +294,6 @@ async function joinStation() {
return;
}
// Convert the station ID to a topic buffer
const topicBuffer = b4a.from(stationId, 'hex');
swarm = new Hyperswarm();
swarm.join(topicBuffer, { client: true, server: false });
@ -235,29 +301,39 @@ async function joinStation() {
document.getElementById('station-info').textContent = `Connected to Station: ${stationId}`;
document.getElementById('setup').classList.add('d-none');
document.getElementById('controls').classList.remove('d-none');
// Hide broadcaster controls for listener
document.getElementById('broadcaster-controls').classList.add('d-none');
// document.getElementById('listener-controls').classList.remove('d-none'); // Ensure listener controls are visible
// Populate audio output devices
await populateAudioOutputSources();
swarm.on('connection', (conn) => {
conn.on('data', (data) => {
processIncomingAudioData(data);
conns.push(conn);
console.log("Peer connected. Total peers:", conns.length);
updatePeerCount();
conn.on('data', (data) => processIncomingAudioData(data));
conn.once('close', () => {
conns.splice(conns.indexOf(conn), 1);
console.log("Peer disconnected. Total peers:", conns.length);
updatePeerCount();
});
// Add error handler for listener connections
conn.on('error', (err) => {
if (err.code === 'ECONNRESET') {
console.log("Peer connection reset by remote peer.");
} else {
console.error("Connection error:", err);
}
conns.splice(conns.indexOf(conn), 1);
updatePeerCount();
});
});
// Hide the modal after joining
const joinModal = document.getElementById('joinModal');
const modalInstance = bootstrap.Modal.getInstance(joinModal);
if (modalInstance) {
modalInstance.hide();
}
const joinModal = bootstrap.Modal.getInstance(document.getElementById('joinModal'));
if (joinModal) joinModal.hide();
updatePeerCount();
}

10
index.html
View File

@ -16,13 +16,11 @@
margin: 0;
font-family: Arial, sans-serif;
}
pear-ctrl[data-platform="darwin"] {
float: left;
margin-top: 15px;
margin-left: 5px;
}
</style>
</head>
<body class="bg-dark text-light">
@ -45,6 +43,14 @@
<select id="audio-input-select" class="form-select"></select>
<button id="apply-audio-source" class="btn btn-success mt-2">Apply</button>
</div>
<!-- Listener-only Controls -->
<div id="listener-controls" class="mt-3 d-none">
<select id="audio-output-select" class="form-select" style="display: none;"></select>
<!-- <label for="audio-output-select" class="form-label">Select Audio Output Device:</label>
<button id="apply-output-device" class="btn btn-success mt-2">Apply</button> -->
</div>
</div>
</div>