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feat: convert audio with api

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This commit is contained in:
Davidson Gomes 2024-10-21 11:39:21 -03:00
parent 34769e2293
commit e986768716
2 changed files with 61 additions and 35 deletions
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3
.env.example
View File

@ -248,6 +248,9 @@ S3_USE_SSL=true
# S3_USE_SSL=true
# S3_REGION=eu-south
# Evolution Audio Converter - Environment variables - https://github.com/EvolutionAPI/evolution-audio-converter
API_AUDIO_CONVERTER=http://localhost:4040/process-audio
# Define a global apikey to access all instances.
# OBS: This key must be inserted in the request header to create an instance.
AUTHENTICATION_API_KEY=429683C4C977415CAAFCCE10F7D57E11

93
src/api/integrations/channel/whatsapp/whatsapp.baileys.service.ts
View File

@ -125,6 +125,7 @@ import { isArray, isBase64, isURL } from 'class-validator';
import { randomBytes } from 'crypto';
import EventEmitter2 from 'eventemitter2';
import ffmpeg from 'fluent-ffmpeg';
import FormData from 'form-data';
import { readFileSync } from 'fs';
import Long from 'long';
import mime from 'mime';
@ -2631,53 +2632,75 @@ export class BaileysStartupService extends ChannelStartupService {
}
public async processAudio(audio: string): Promise<Buffer> {
let inputAudioStream: PassThrough;
if (process.env.API_AUDIO_CONVERTER) {
const formData = new FormData();
if (isURL(audio)) {
const timestamp = new Date().getTime();
const url = `${audio}?timestamp=${timestamp}`;
if (isURL(audio)) {
formData.append('url', audio);
} else {
formData.append('base64', audio);
}
const config: any = {
responseType: 'stream',
};
const { data } = await axios.post(process.env.API_AUDIO_CONVERTER, formData, {
headers: {
...formData.getHeaders(),
},
});
const response = await axios.get(url, config);
inputAudioStream = response.data.pipe(new PassThrough());
if (!data.audio) {
throw new InternalServerErrorException('Failed to convert audio');
}
return Buffer.from(data.audio, 'base64');
} else {
const audioBuffer = Buffer.from(audio, 'base64');
inputAudioStream = new PassThrough();
inputAudioStream.end(audioBuffer);
}
let inputAudioStream: PassThrough;
return new Promise((resolve, reject) => {
const outputAudioStream = new PassThrough();
const chunks: Buffer[] = [];
if (isURL(audio)) {
const timestamp = new Date().getTime();
const url = `${audio}?timestamp=${timestamp}`;
outputAudioStream.on('data', (chunk) => chunks.push(chunk));
outputAudioStream.on('end', () => {
const outputBuffer = Buffer.concat(chunks);
resolve(outputBuffer);
});
const config: any = {
responseType: 'stream',
};
outputAudioStream.on('error', (error) => {
console.log('error', error);
reject(error);
});
const response = await axios.get(url, config);
inputAudioStream = response.data.pipe(new PassThrough());
} else {
const audioBuffer = Buffer.from(audio, 'base64');
inputAudioStream = new PassThrough();
inputAudioStream.end(audioBuffer);
}
ffmpeg.setFfmpegPath(ffmpegPath.path);
return new Promise((resolve, reject) => {
const outputAudioStream = new PassThrough();
const chunks: Buffer[] = [];
ffmpeg(inputAudioStream)
.outputFormat('ogg')
.noVideo()
.audioCodec('libopus')
.addOutputOptions('-avoid_negative_ts make_zero')
.audioChannels(1)
.pipe(outputAudioStream, { end: true })
.on('error', function (error) {
outputAudioStream.on('data', (chunk) => chunks.push(chunk));
outputAudioStream.on('end', () => {
const outputBuffer = Buffer.concat(chunks);
resolve(outputBuffer);
});
outputAudioStream.on('error', (error) => {
console.log('error', error);
reject(error);
});
});
ffmpeg.setFfmpegPath(ffmpegPath.path);
ffmpeg(inputAudioStream)
.outputFormat('ogg')
.noVideo()
.audioCodec('libopus')
.addOutputOptions('-avoid_negative_ts make_zero')
.audioChannels(1)
.pipe(outputAudioStream, { end: true })
.on('error', function (error) {
console.log('error', error);
reject(error);
});
});
}
}
public async audioWhatsapp(data: SendAudioDto, file?: any, isIntegration = false) {