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318 changes: 159 additions & 159 deletions audioPlayer.js
Original file line number Diff line number Diff line change
@@ -1,160 +1,160 @@
const ffmpegStatic = require('ffmpeg-static');
const Speaker = require('speaker');
const stream = require('stream');
const { spawn } = require('child_process');
const dotenv = require('dotenv');
const fs = require('fs');

dotenv.config();
const enableDebug = process.env.DEBUG_MODE == "1";


class BufferingStream extends stream.Transform {
constructor(options) {
super(options);
this.bufferedChunks = [];
this.bufferSize = 0;
this.bufferLimit = options.bufferLimit || 0; // Default buffer limit is 0 if not provided
}

_transform(chunk, encoding, callback) {
this.bufferedChunks.push(chunk);
this.bufferSize += chunk.length;

if (this.bufferSize >= this.bufferLimit) {
this.pushBufferedChunks();
this.bufferedChunks = [];
this.bufferSize = 0;
}

callback();
}

_flush(callback) {
this.pushBufferedChunks();
callback();
}

pushBufferedChunks() {
this.bufferedChunks.forEach((chunk) => {
this.push(chunk);
});
}
}


function createSpeaker() {
const speaker = new Speaker({
channels: 2,
bitDepth: 16,
sampleRate: 48000,
// device: process.env.SPEAKER_DEVICE
});
if (enableDebug) {
// speaker.on('drain', () => console.log('Speaker stream drained.'));
speaker.on('pipe', (src) => console.log('Something is piping into the speaker.'));
speaker.on('unpipe', (src) => console.log('Something stopped piping into the speaker.'));
speaker.on('finish', () => console.log('Speaker stream finished.'));
speaker.on('open', () => console.log('Speaker stream opened.'));
speaker.on('close', () => console.log('Speaker stream closed.'));
speaker.on('error', (err) => console.log('Speaker stream error:', err));
}

return speaker;
}

function addDebugLog(text) {
if (enableDebug) {
console.log(text);
// Put in debug.log file
fs.appendFileSync('debug.log', text + '\n');
}
}

function createFFmpeg(audioStream, speaker) {
if (enableDebug) {
addDebugLog('Creating FFmpeg process: ' + ffmpegStatic);
}
let ffmpeg = null;
try {
ffmpeg = spawn(ffmpegStatic, [
'-i', 'pipe:0',
'-f', 's16le',
'-acodec', 'pcm_s16le',
'-ac', '2',
'-ar', '48000',
'-loglevel', 'verbose',
'pipe:1'
], {
env: { ...process.env }
});
} catch (error) {
addDebugLog('Error creating FFmpeg process: ' + error);
throw error;
}
// Redirect stderr to debug.log
ffmpeg.stderr.on('data', (data) => {
addDebugLog(`stderr: ${data}`);
});


audioStream.pipe(ffmpeg.stdin);
ffmpeg.stdout.pipe(speaker);

return ffmpeg;
}

function handleFFmpegEvents(ffmpeg) {
return new Promise((resolve, reject) => {
ffmpeg.on('error', (error) => {
console.error('FFmpeg error:', error);
reject(error);
});

ffmpeg.on('close', (code, signal) => {
addDebugLog(`FFmpeg closed with code ${code} and signal ${signal}`);

if (code !== 0) {
console.error(`FFmpeg exited with code ${code} and signal ${signal}`);
reject(new Error(`FFmpeg exited with code ${code} and signal ${signal}`));
} else {
resolve();
}
});
});
}


const audioStream = new stream.PassThrough();
const bufferingStream = new BufferingStream({ bufferLimit: 10000 }); // Adjust buffer limit as needed
audioStream.pipe(bufferingStream);
const speaker = createSpeaker();
const ffmpeg = createFFmpeg(bufferingStream, speaker);


handleFFmpegEvents(ffmpeg)
.then(() => {
if (enableDebug) console.log('FFmpeg processing completed successfully.');
})
.catch((error) => {
console.error('FFmpeg processing failed:', error);
process.exit(1);
});


process.stdin.on('data', (audioBuffer) => {
audioStream.write(audioBuffer);
});

process.stdin.on('end', () => {
audioStream.end();
});

speaker.on('close', () => {
process.exit(0);
});

ffmpeg.on('error', (error) => {
console.error('FFmpeg error:', error);
process.exit(1);
const ffmpegStatic = require('ffmpeg-static');
const Speaker = require('speaker');
const stream = require('stream');
const { spawn } = require('child_process');
const dotenv = require('dotenv');
const fs = require('fs');
dotenv.config();
const enableDebug = process.env.DEBUG_MODE == "1";
class BufferingStream extends stream.Transform {
constructor(options) {
super(options);
this.bufferedChunks = [];
this.bufferSize = 0;
this.bufferLimit = options.bufferLimit || 0; // Default buffer limit is 0 if not provided
}
_transform(chunk, encoding, callback) {
this.bufferedChunks.push(chunk);
this.bufferSize += chunk.length;
if (this.bufferSize >= this.bufferLimit) {
this.pushBufferedChunks();
this.bufferedChunks = [];
this.bufferSize = 0;
}
callback();
}
_flush(callback) {
this.pushBufferedChunks();
callback();
}
pushBufferedChunks() {
this.bufferedChunks.forEach((chunk) => {
this.push(chunk);
});
}
}
function createSpeaker() {
const speaker = new Speaker({
channels: 2,
bitDepth: 16,
sampleRate: 48000,
// device: process.env.SPEAKER_DEVICE
});
if (enableDebug) {
// speaker.on('drain', () => console.log('Speaker stream drained.'));
speaker.on('pipe', (src) => console.log('Something is piping into the speaker.'));
speaker.on('unpipe', (src) => console.log('Something stopped piping into the speaker.'));
speaker.on('finish', () => console.log('Speaker stream finished.'));
speaker.on('open', () => console.log('Speaker stream opened.'));
speaker.on('close', () => console.log('Speaker stream closed.'));
speaker.on('error', (err) => console.log('Speaker stream error:', err));
}
return speaker;
}
function addDebugLog(text) {
if (enableDebug) {
console.log(text);
// Put in debug.log file
fs.appendFileSync('debug.log', text + '\n');
}
}
function createFFmpeg(audioStream, speaker) {
if (enableDebug) {
addDebugLog('Creating FFmpeg process: ' + ffmpegStatic);
}
let ffmpeg = null;
try {
ffmpeg = spawn(ffmpegStatic, [
'-i', 'pipe:0',
'-f', 's16le',
'-acodec', 'pcm_s16le',
'-ac', '2',
'-ar', '48000',
'-loglevel', 'verbose',
'pipe:1'
], {
env: { ...process.env }
});
} catch (error) {
addDebugLog('Error creating FFmpeg process: ' + error);
throw error;
}
// Redirect stderr to debug.log
ffmpeg.stderr.on('data', (data) => {
addDebugLog(`stderr: ${data}`);
});
audioStream.pipe(ffmpeg.stdin);
ffmpeg.stdout.pipe(speaker);
return ffmpeg;
}
function handleFFmpegEvents(ffmpeg) {
return new Promise((resolve, reject) => {
ffmpeg.on('error', (error) => {
console.error('FFmpeg error:', error);
reject(error);
});
ffmpeg.on('close', (code, signal) => {
addDebugLog(`FFmpeg closed with code ${code} and signal ${signal}`);
if (code !== 0) {
console.error(`FFmpeg exited with code ${code} and signal ${signal}`);
reject(new Error(`FFmpeg exited with code ${code} and signal ${signal}`));
} else {
resolve();
}
});
});
}
const audioStream = new stream.PassThrough();
const bufferingStream = new BufferingStream({ bufferLimit: 10000 }); // Adjust buffer limit as needed
audioStream.pipe(bufferingStream);
const speaker = createSpeaker();
const ffmpeg = createFFmpeg(bufferingStream, speaker);
handleFFmpegEvents(ffmpeg)
.then(() => {
if (enableDebug) console.log('FFmpeg processing completed successfully.');
})
.catch((error) => {
console.error('FFmpeg processing failed:', error);
process.exit(1);
});
process.stdin.on('data', (audioBuffer) => {
audioStream.write(audioBuffer);
});
process.stdin.on('end', () => {
audioStream.end();
});
speaker.on('close', () => {
process.exit(0);
});
ffmpeg.on('error', (error) => {
console.error('FFmpeg error:', error);
process.exit(1);
});
1 change: 1 addition & 0 deletions config.json
Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
{"MICROPHONE_DEVICE":7}
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