rktalusani’s gists

rktalusani / gist:aee2b673c89d26a0535eb18bd1bb2aa2

Created October 26, 2023 04:59

Increase the volume of an audio buffer

	public byte[] increaseVolume(byte[] audioBuffer) {
	for (int i = 0; i < audioBuffer.length; i += 2) {
	// Convert 16-bit little-endian PCM samples to a short
	short sample = (short)((audioBuffer[i] & 0xFF) \| (audioBuffer[i + 1] << 8));

	// Increase the volume by 10%
	sample = (short)(sample * 1.1);

	// Clip the value to stay within the 16-bit range
	if (sample > Short.MAX_VALUE) {

rktalusani / delayed return from webhook

Created February 27, 2023 05:03

	const express = require('express')
	var bodyParser = require('body-parser')
	const uuid = require("uuid")
	const jwt = require("jsonwebtoken")
	const request = require('request');
	const fs = require('fs')
	const app = express()
	app.use(bodyParser.json())
	app.use(bodyParser.urlencoded({ extended: false }))
	const app_id="39dc9665-f65e-4764-92d3-715aa98b3f55";

rktalusani / Vonage Video SDK - XCFramework to SPM

Last active March 21, 2023 01:02

	#!/bin/bash

	generate_podfile(){
	echo "platform :ios, '12.0'
	install! 'cocoapods', integrate_targets: false
	use_frameworks!
	pod 'OTXCFramework', '$1'

	" > Podfile

rktalusani / nginx_as_vonage_ip_proxy

Created September 26, 2022 04:40

	location /proxy/ {
	if ($request_method = OPTIONS ) {
	add_header Allow "POST, GET, OPTIONS";
	add_header Access-Control-Allow-Headers "*";
	add_header Access-Control-Allow-Origin "*";
	return 200;
	}
	resolver 8.8.8.8 ipv6=off;
	rewrite /proxy/(?:https?:\/\/)?(?:[^@\/\n]+@)?(?:www\.)?([^\/?\n]+)(.+) $2 break;

rktalusani / StereoPlaybackMonoCaptureDevice.swift

Created April 5, 2021 04:24

	//
	// DefaultAudioDevice.swift
	// 4.Custom-Audio-Driver
	//
	// Created by Roberto Perez Cubero on 21/09/2016.
	// Copyright © 2016 tokbox. All rights reserved.
	//

	import Foundation
	import OpenTok

rktalusani / connect_calls_conf

Last active October 7, 2020 09:30

	app.get("/answer", function (req, res) {

	console.log("uuid is:"+req.query.uuid);
	var ncco = [
	{
	action: "conversation",
	name: "conf"+req.query.uuid ,
	startOnEnter: true,
	record: true
	}

rktalusani / Opentok_Screenshare_WithAudio

Created September 2, 2020 03:55

	var videoConstraints = {};
	/* Width and Height optional but, framerate is a must to avoid blinking */
	/* videoConstraints.width = 1280;
	videoConstraints.height = 720;*/
	videoConstraints.frameRate = 25;
	var displayMediaStreamConstraints = {
	video: videoConstraints,
	audio: true
	};
	try {

rktalusani / opentok-faceid

Last active December 29, 2020 21:40

	1. sendScreenShot (front-end js) method uses subsciber.getImgData() method to capture screenshot of the subscriber (remote participant) and post it to the server.
	2. On the server we use detectFace() method to detect the facial features in this image and we get a identifier for the detected face (id1)
	3. we use detectFace() again with the image we want to compare with and we get identifier for the detected face (id2)
	4. we use verifyFace() method and pass id1 and id2 as the inputs. Microsoft face API compares these two faces and provides a result that includes match/mismatch as well as a score.

	Reference -
	1. getImgData() - https://tokbox.com/developer/sdks/js/reference/Subscriber.html#getImgData
	2. Microsoft Face API - https://westus.dev.cognitive.microsoft.com/docs/services/563879b61984550e40cbbe8d/operations/563879b61984550f30395236

rktalusani / WebAudioOpenTok.html

Created August 4, 2020 14:21

Mix Microphone+Mp3 and use it as audio source for Opentok

	<html>
	<head>
	<script src="https://static.opentok.com/v2/js/opentok.min.js"></script>
	</head>
	<body>
	<audio crossOrigin="anonymous" id="mp3file" controls>
	<source src="helix.mp3"/>
	</audio>
	<div id="layoutContainer"></div>
	<button onclick="startProcess()">Let the magic begin</button>

rajkiran talusani rktalusani