Daniel Barta

Pointer & Array Arithmetic in C

After a decade of working with TypeScript, my pointer arithmetic skills had become rusty. While I had spent the last few months working with C and C++, my experience is that organizing lessons learned—and relearned—helps fill gaps, and writing an article is a great way to reinforce that.

PTS of adelay filter

The adelay filter of FFmpeg does NOT explicitly set the timestamp of the frame. It starts from AV_NOPTS_VALUE, the smallest number representable. Should use asetpts after adelay to overcome this.

Multiple npm registries

Github has its own npm registry, and it is possible to fetch from multiple package repositories by configuring the .npmrc.

The Streams API is Great

The Streams API is even more powerful than it looks. It not only handles backpressure and queueing but also propagates abort and close actions upwards. Transform streams can also define a flush step before closing.

Web Audio + WebAssembly: Lessons Learned

As someone deeply involved in developing modern browser-based multimedia applications, I recently set out to integrate Web Audio with C++/WebAssembly to optimize an audio-processing workflow. On paper, this seemed like a promising approach—leveraging the power of WebAssembly for performance-intensive tasks while taking advantage of the flexibility offered by

Creating Audio on the Web Is Easy—Until It’s Time to Export

For years, advanced audio processing in the browser has been well within reach, thanks to the powerful Web Audio API—a go-to solution for web developers building dynamic and innovative audio applications. But while creating audio has become simpler than ever, exporting it seamlessly remains a surprisingly tricky challenge in

TypeScript's Literal Types Are Better Than Enums

Combining the descriptive qualities of enumerated types and the easy-to-use nature of strings. During a code review, something that sticks out when the code is full of ad-hoc string checking. For example, implementing a blog engine with three types of roles can start with a check if the user is

How to list the possible values of a string literal union type in TypeScript

String literals are one of the most straightforward and powerful tools of TypeScript. But until v3.4, it was impossible to list its accepted values. Developers needed to fall back to enums. Not a problem anymore.

Misconceptions of Angular Change Detection

When an Angular application's performance decreases, I go through a simple and easy checklist of my own. Checking loose subscriptions, trackBy functions of in-template iterations, and change detection among others. Especially the latter had been mentioned in all the articles, webinars, and conferences, but since they usually don't dive deep,

CI/CD for Angular projects with Firebase and Github

We can utilise GitHub Actions to automatically deploy when we push something.