teleren/devto huggingface dataset:
Usando ffmpeg para converter vídeos em GIF e muitas outras coisas
Published: 2024-06-17 14:57:18

O ffmpeg é um programa de linha de comando eficiente e fácil de usar. É usado para conversão, gravação, transmissão e reprodução de arquivos de áudio e vídeo. O ffmpeg é obrigatório para desenvolvedores, editores de vídeo e entusiastas de multimídia, pois suporta uma ampla variedade de formatos.


**Como instalar (wsl2/Linux)**
```bash
sudo apt install ffmpeg
```


**Como usar (wsl2/Linux)**
A conversão de arquivos de vídeo com FFmpeg é simples e direta. Aqui estão alguns exemplos básicos:


**Converter um vídeo em `*.mp4` para `*.gif`**
```bash
ffmpeg -i input.mp4 output.gif
```
Veja que é possível usar vários outros tipos de saída com esse simples comando.


**Extrair o áudio de um vídeo**
```bash
ffmpeg -i input.mp4 -q:a 0 -map a output.mp3
```
- `-q:a 0` define a qualidade de áudio para a melhor possível.
- `-map a` seleciona apenas a faixa de áudio.


**Redimensionar um vídeo**

```bash
ffmpeg -i input.mp4 -vf scale=1280:720 output.mp4
```
- `-vf scale=1280:720` redimensiona o vídeo para 1280x720 pixels.


**Acelerar um vídeo**
Vídeo de 10 minuto acelerado para 5 minutos:
```bash
ffmpeg -i input.mp4 -filter:v "setpts=PTS/2" output.mp4
```
- `-filter:v` Indica que estamos aplicando um filtro ao vídeo. O `v` especifica que o filtro é para o vídeo (e não para o áudio).
- `setpts` é um filtro que ajusta os timestamps dos frames de vídeo (PTS - Presentation Time Stamp).

Para acelerar um vídeo 4 vezes (reduzir a duração para 1/4 do tempo original), você pode usar:

```bash
ffmpeg -i input.mp4 -filter:v "setpts=PTS/4" output.mp4
```


**Converter todos os arquivo em uma pasta para *.mp3**

Você pode converter de uma maneira eficiente de converter múltiplos arquivos `*.m4a` para `*.mp3`.

```bash
ls *.m4a | xargs -I {} ffmpeg -i {} -codec:a libmp3lame -q:a 2 {}.mp3
```

Caso deseje é possível além de converter para `*.mp3` aplicar uma normalização de áudio:
```bash
ls *.m4a | xargs -I {} ffmpeg -i {} -codec:a libmp3lame -q:a 2 -af loudnorm=I=-16:LRA=11:TP=-1.5:print_format=summary {}.mp3
```

FFmpeg é uma ferramenta essencial para qualquer pessoa que trabalhe com multimídia. Sua instalação é simples tanto no Windows quanto no Linux, e sua utilização oferece uma ampla gama de possibilidades para a conversão e manipulação de arquivos de áudio e vídeo. Explore as opções e comandos do FFmpeg para aproveitar ao máximo essa poderosa ferramenta!

Esses são apenas alguns dos principais comandos que utilizo no dia a dia, veja que existem muitos outros recursos que você pode explorar e aplicar em suas tarefas.
New ChatGPT-4o: A Game-Changer That Could Replace Data Analysts
Published: 2024-06-17 14:54:04

In this video, I explore the new ChatGPT-4o and its impact on data analysis. Can data analysts survive in a world where AI is taking over? Join me as I dive into the features of ChatGPT-4o and discuss its potential to revolutionize the field of data analysis. I also share my thoughts on the future of data analysts and what skills will be essential to stay relevant. Don't forget to like, comment, and subscribe for more insights!
Nullish coalescing vs Logical || by aryan
Tags: javascript, react
Published: 2024-06-17 14:53:29

The difference between these two operators are, nullish(??) operators consider 0 and "",[],{} as a true.

Only `null` and `undefined` is considered as false.
```js
const obj = {
name:'aryan khandelwla'
age:26
}
obj.['name'] //aryan khandelwal
obj||obj['name'] //aryan khandelwla
```
`??` nullish operator helps avoid repetition.__[recommended]__
Secure Your Digital Frontier with CQR Cybersecurity LLC
Tags: cybersecurity, web3, it, security
Published: 2024-06-17 14:01:30

Choosing CQR Cybersecurity means opting for a future where your digital assets are guarded by the best in the business. Let’s discuss how we can tailor our protection strategies to suit your unique needs. Your security journey starts with CQR Cybersecurity LLC — where reliability meets professionalism.
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All Required Certifications: Our team holds all the key certifications required by the industry, including OSCP, OSWE, CEH, EWPTXv2, CISCCP, SSCP and others, confirming our high level of expertise and qualifications.

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Hardware Acceleration
Tags: cschallenge
Published: 2024-06-17 14:23:23

*This is a submission for [DEV Computer Science Challenge v24.06.12: One Byte Explainer](https://dev.to/challenges/cs).*

**Explainer**

Hardware acceleration is a feature that uses specialized hardware to enhance the performance of certain tasks like graphics, videos, and sounds.
It frees up the CPU, which results in much smoother and faster computer operations for a far superior experience


**Additional Context**
With the help of Gemini, I have been able to write about hardware acceleration.
This still involved my hand in structuring the words and not making it a complete AI generated submission.
7 Open Source Projects for Web Development that you didn't know
Tags: opensource, webdev, productivity, discuss
Published: 2024-06-17 14:19:23

Exploring lesser-known Open Source projects can unveil tools that are not only powerful but also tailored to specific development needs that might not be covered by the mst popular projects. 
Here are seven less known Oprn Source projects that can help you bring innovation and efficiency to your web development projects.

---


### 1. **[Alpine.js](https://alpinejs.dev/)**

-   **Description**: A rugged, minimal framework for composing JavaScript behavior in your markup. It offers the reactive and declarative nature of big frameworks like Vue or React at a much lower cost.

### 2. **[Stencil](https://stenciljs.com/)**

-   **Description**: A compiler that generates Web Components (more robust and interoperable custom elements) which work across modern frameworks. Stencil combines the best concepts of the most popular frameworks into a simple build-time tool.

### 3. **[Hugo](https://gohugo.io/)**

-   **Description**: Hugo is a fast and modern static site generator written in Go, designed to make website creation simple yet powerful. It's ideal for projects needing lightning-fast build times and supports a wide range of content management scenarios.

### 4. **[RedwoodJS](https://redwoodjs.com/)**

-   **Description**: A full-stack JavaScript framework that brings together the best parts of React, GraphQL, Prisma for ORM, and Jest for testing. It's designed to be highly scalable and offers a unique 'cells' feature for declaratively loading data.

### 5. **[Astro](https://astro.build/)**

-   **Description**: A fresh but promising framework for building faster websites and web applications. Astro allows you to write your UI components using React, Vue, Svelte, or even plain HTML/CSS, while managing to deliver lightning-fast performance by shipping less JavaScript.

### 6. **[KeystoneJS](https://keystonejs.com/)**

-   **Description**: A powerful CMS and web app framework built on Express and MongoDB. KeystoneJS makes it easy to create complex databases and backend logic while providing intuitive admin UI and API layer for your apps.


---

## 7. [Webcrumbs](https://www.webcrumbs.org/)
- **Description**: Webcrumbs is poised to be a game-changer in web development. We are creating a Plugin Ecosystem for the JavaScript community with the JavaScript community help.

As we build, [we invite the community to join us](https://discord.gg/4PWXpPd8HQ) on this exciting journey—participate in our development process, provide feedback, and be part of something groundbreaking.

Stay tuned and join our community to get early access and updates!

⭐ Star our GitHub repo: https://buff.ly/3xktEK5 
💬 Join our Discord community: https://buff.ly/4e9INP5 
📬 Sign up for our newsletter: https://buff.ly/3VxadXE
Melhores Novos Casinos Online em Portugal [2024]
Published: 2024-06-17 14:02:39

A facilidade de uso e acessibilidade são características fundamentais dos novos casinos online em Portugal. Esses sites são projetados para serem intuitivos, permitindo que jogadores de todos os níveis naveguem facilmente e encontrem seus jogos e serviços preferidos sem dificuldades. Acesse [https://casino-portugal.com.pt/casinos/novos/](https://casino-portugal.com.pt/casinos/novos/) para descobrir casinos que combinam design atraente com funcionalidade excepcional, oferecendo uma interface amigável que faz com que a experiência de jogo seja simples e prazerosa. Além disso, muitos destes casinos oferecem tutoriais e guias para ajudar novos jogadores a se acostumarem com o ambiente de jogo, garantindo que todos possam desfrutar de sua experiência desde o primeiro clique.
I Found a way to Automate 2FA and TOTP.
Tags: beeceptors, automation, testing, 2fa
Published: 2024-06-17 13:56:05

Hello Readers,
After very long time now I am back with a very interesting topic for Automation Testers. I’ve recently see a post in linked In about the beeceptors. That post contains a lot of information of a very good advantage of use the Beeceptor Api which we can use to overcome the dificulty of 2FA ( 2-Factor Authentication) and TOTP (Time-based One-Time Passwords).

We know most of the big application like Github, Zerodha, Instagram even Google and many more. All these applications are have a 2FA and TOTP to login for security purpose. For these 2FA and TOTP are nightmare of Automation Tester. In order to overcome that problem, some of the companies skip the authentication with constant code or disabled authentication page login.


Recently I get to know that there a tool called Beeceptors through a significant linked In post. After I read that along with some more of the other blogs and sources, I get know that, we can mock that 2 factor authentication by using Mock API to simulating different API’s for authentication.

We can create our own end points for different response and get the results for the best automation scripts with all the possible scenarios and use cases. Using a website https://beeceptor.com/ , we can create our own mock servers and endpoints with specific rule, secret and authentications.

Time-Based One-Time Passwords (TOTP) are often used in 2FA. Mock APIs can generate mock TOTP codes to test the verification process within the applications.

Using mock APIs helps us isolating 2FA and TOTP testing from production environments, reducing risks associated with live testing.

By using the services like beeceptors which provides mock API’s similar capabilities make Testing is very helpful to test the application more robust and reliable before Deployment.

These were the things I learned in weekends to improve my automation testing skills. In near future I’ll write another blog with more detailed information with practical implementation.

Thank you for your time to read my blog. Until Next Time.

Best wishes to all.
Where Do I Find WPS Pin on HP Printer
Tags: beginners, printer, wifi, hp
Published: 2024-06-17 13:53:38

## Finding the WPS PIN on Your HP Printer

Connecting your HP printer to a wireless network using the Wi-Fi Protected Setup (WPS) PIN method is a secure and convenient way to ensure a seamless printing experience. The WPS PIN is a unique code generated by your printer, allowing you to connect to your Wi-Fi network without manually entering a password. Here’s a quick guide on how to find the WPS PIN on your HP printer.


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/03d8jm9650vbx8yabqt2.jpg)

## What is the WPS PIN?

The WPS PIN (Wi-Fi Protected Setup Personal Identification Number) is an eight-digit code used to establish a secure connection between your HP printer and your wireless network. This method is particularly useful for simplifying the setup process and enhancing security.

## How to Find the WPS PIN on Your HP Printer

**Using the Printer Control Panel**

Power On the Printer: Ensure your printer is powered on and ready.
Access Network Settings: Navigate to the "Network" or "Wireless Settings" menu on the printer’s control panel. This is typically found under "Setup" or "Settings."
Select WPS Option: Look for the "Wi-Fi Protected Setup" option and select it.
Generate WPS PIN: Choose the "WPS PIN" option. The printer will display the WPS PIN on the screen.

**Using the HP Smart App**

Download and Install HP Smart: Ensure you have the HP Smart app on your smartphone or tablet.
Connect to the Printer: Open the app and connect to your HP printer.
Access Printer Settings: Navigate to the printer settings within the app.
Find the WPS PIN: Look for the network settings or Wi-Fi settings section to locate the WPS PIN option.

## Using the WPS PIN to Connect

Access Router Settings: Go to your Wi-Fi router’s settings.
Find WPS Setup: Locate the WPS setup section.
Enter the WPS PIN: Input the WPS PIN generated by your printer.
Complete the Connection: Follow any additional prompts to finalize the connection.

## Conclusion

The WPS PIN method offers a quick and secure way to connect your HP printer to a wireless network. By following the steps outlined above, you can easily locate the WPS PIN and establish a reliable connection, ensuring that your printing tasks proceed smoothly and efficiently.
Why Set Doesn't Allow Duplicates in Java
Tags: streams, java
Published: 2024-06-17 13:45:54

In Java, a Set is a collection that does not allow duplicate elements. This behavior is enforced by the underlying implementations of the Set interface, such as HashSet, TreeSet, and LinkedHashSet.

The main reason Sets do not allow duplicates is due to the contract defined by the Set interface:

*   **Uniqueness:** Sets are designed to store unique elements only. Each element must be unique based on its equals() method. If an attempt is made to add an element that already exists in the Set, the add operation will return false (for HashSet and TreeSet) or simply not add the element (for LinkedHashSet).
*   **Efficiency:** By disallowing duplicates, Sets can optimize operations like searching and adding elements. HashSet, for example, uses a hash table for storage, making lookups and insertions constant time on average.
*   **Behavior consistency:** Sets are often used in scenarios where uniqueness of elements is crucial, such as storing keys in maps or managing collections of distinct entities.

Here's a simple example demonstrating the behavior of a HashSet, which is a common implementation of the Set interface:

```java
    
    import java.util.HashSet;
    import java.util.Set;
    
    public class SetExample {
        public static void main(String[] args) {
            Set<Integer> set = new HashSet<>();
            set.add(1);
            set.add(2);
            set.add(3);
            set.add(2); // This duplicate element will not be added
    
            System.out.println(set); // Output: [1, 2, 3]
        }
    }
```
        

This example illustrates how duplicates are automatically prevented when using a Set in Java.
In Java how to create a custom ArrayList that doesn't allow duplicate? #Interview Question
Tags: streams, java
Published: 2024-06-17 13:39:30

##Creating a Custom ArrayList in Java that Doesn't Allow Duplicates##
=================================================================

In Java, you can create a custom ArrayList that ensures no duplicate elements are added **by extending the ArrayList class** and **overriding the add method**.

```java
import java.util.ArrayList;

public class CustomArrayList<E> extends ArrayList<E> {

    // Override add method to prevent duplicates
    @Override
    public boolean add(E e) {
        if (!contains(e)) {
            return super.add(e);
        }
        return false;
    }

    public static void main(String[] args) {
        CustomArrayList<Integer> list = new CustomArrayList<>();
        list.add(1);
        list.add(2);
        list.add(3);
        list.add(2); // This duplicate will not be added

        System.out.println(list); // Output: [1, 2, 3]
    }
}
```

This custom ArrayList implementation checks if an element already exists before adding it. If the element is not found, it adds the element using the superclass's add method. Otherwise, it returns false, indicating that the element was not added due to duplication.
Osama : not a Web Developer
Published: 2024-06-17 13:32:35


![Osama not a web dev](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/j6sub9j5ov0uog6p6ghd.jpg)
## Osama Bin Laden 

## America

- 1993- world trade center - 6 died
- 1998 - U.S. Embassies - 224 died
- 2001 - 9/11 - 3K died

`Note : Operation Infinite Reach - was failed before`

## Operation Neptune Spear 

- US Navy Seal (United states Navy Sea, Air, Land)
- 1 May 2011 : Jalalabad (US Navy seal base) to Abbottabad (hidden Osama)
- Helicopter - chinook (backup), black hawks(chalk 1 & 2 - steath technology, fabric layer)
- Chalk2 was good
- chalk1 got air vortex flow

### Firing sequence 

- Abu Ahmad, Abrar, Khalid (osama son)

- Team had night vision goggles, camera - obama, joe biden, hillary clinton watching



```
GInnonimo EKIA- osma enemy killed in action
```

## Osama story:

- Saudi Aribia - Riyadh - 10 March 1957 birthday
- King abdul aziz university - civil engineering
- Afganistan - AL QAEDA = the base vs USSR
- Saudi America relation 
- U.S Naval Station Gunatanamo Bay, CUba - Jail torture
- thrown in Arabian sea - with muslim rituals
Made an online HTML editor
Tags: html, webdev, javascript, beginners
Published: 2024-06-17 13:28:07


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/13mdf4n45vdhzescst0i.png)

Okay, so this is the latest addition to my side project. I made an HTML editor. To be honest, it was not that hard but it was special!

I enjoyed the magical moment when I first saw my html code rendering in the preview window, that too in real-time. I know it's not a big deal for many but for me it feels like the completion of a long awaited thing. The last one(at least for now) that the project needed. Along with that, I can save my code snippets and share with others. Very much excited because I can showcase and share excellent web snippets from now on. 

Yes, and now I feel like I have added fairly good number of programming language support. 

People often ask, what do I have different than jsFiddle or Pastebin. My answer to that is "simplicity". See, most of my traffic is organic and I am not doing any paid promotion so far, I don't run ads and till now I am spending my own money to run this [side project](https://www.freecodecompiler.com). The biggest payback for me is seeing people using my product, they are saving code snippets, registering themselves, maybe for their school project or practicing code; who knows... what matters is all of this with no major differentiator and I'm loving it this way.

There are plans for more developer friendly front-end and backend interview related features. Looking for more ways to simplify the dev journey.
Why Hire a Dedicated Vue.js Developer?
Tags: webdev, vue, javascript, developers
Published: 2024-06-17 13:24:02

**Streamlining Web Development with Efficiency & Flexibility**

**Gentle Learning Curve:** Vue.js features a concise syntax and user-friendly design, enabling rapid adoption even for beginners in JavaScript & HTML. This accessibility reduces barriers and speeds up project timelines.

**Component-Based Architecture:** Vue.js excels in reactivity: Data changes reflect in the UI automatically, simplifying state management and reducing manual DOM manipulation. This streamlines development and maintains clean code.

**Performance Optimization:** Vue.js prioritizes performance, employing techniques such as virtual DOM and efficient rendering. This ensures a smooth user experience, particularly in dynamic, data-driven applications.

**Versatility & Gradual Adoption:** Vue.js is incredibly versatile, spanning from small interactive elements to full single-page applications (SPAs). It also supports incremental integration into existing projects for a gradual adoption path.

**Rich Ecosystem:** Though not as expansive as some counterparts, Vue.js provides a curated ecosystem of third-party libraries, tools, and UI components. This enhances Vue’s capabilities and simplifies development.

**Active Community & Support:** The Vue.js community is passionate, supportive, and rapidly growing. You’ll find a wealth of resources, tutorials, and assistance online when needed.

**Expertise & Efficiency:** Experienced Vue.js devs efficiently build top-notch apps, mastering structure, data management, and optimization.

**Deep Understanding:** Their deep grasp of core Vue.js concepts like components, reactivity, and the build process ensures efficient and maintainable development.

**Ecosystem Navigation:** Familiarity with popular Vue.js tools and libraries saves time and effort during development. They’ll know the right tools for the job.

**UI/UX Focus:** A dedicated developer focuses on crafting a user-centric, visually appealing experience, ensuring your application is both functional and delightful to use.

**Long-Term Support:** They can provide ongoing maintenance and support for your Vuejs application, keeping it stable and up-to-date as your project evolves. **[Hire a dedicated Vue.js Developer for Your Dream Project.](http://coderower.com/)**