C++ & Qt

25 February 2026 20:10

should not work with pixels/redo everything, should work with packed cadr-S (img at timeline). there're already open-source solutions

example — any popular web-video platform

C++ & Qt

25 February 2026 12:10

Куплю USDT TRC20. Без посредников.

C++ & Qt

23 February 2026 18:14

I would contend that theoretic is what you need — to understand the time complexity and space complexity of different algorithms (Big-O in particular).

C++ & Qt

23 February 2026 18:12

About algorithms, which is really vital, STL gives you a bunch of good ones, but you can enhance your skills by dealing with related exercises or problems.

Benchmark each and do not expect better results just by knowing them.

C++ & Qt

23 February 2026 18:09

CLRS, is mostly theoretic.
I would suggest learning them each by real projects.

C++ & Qt

23 February 2026 18:07

It’s also very useful when you want to refactor or tweak the code

C++ & Qt

23 February 2026 18:05

This is how I use AI in my job (when I can). I will also use it to generate boilerplate application code.

C++ & Qt

23 February 2026 18:01

Get a copy of the CLRS (Thomas Cormet, Charles Liserson, Ronald Rivest, and Clifford Stein) book "Introduction to Algorithms" — it is a really good book for learning algorithms and data structures.

C++ & Qt

23 February 2026 11:48

@Ilya_6483 [8547462020] warned (1 of 2).
Due to: already deleted message once

C++ & Qt

22 February 2026 14:02

Welcome to the group, @ViktoryaAbrahamyan! :-)

Wanna share your story of how you started with Qt, QML or C++? Maybe some nice feature that made you stick with it.
Rules are set on the description of the group. :)

C++ & Qt

21 February 2026 19:39

I really like the idea of qualified feedback but letting me actually do it. I want to learn, no vibe code.

C++ & Qt

21 February 2026 19:36

A couple of things I thought were interesting: It guessed the topic of my entire project correctly by just looking at this one (non-central) class. Spooky!

C++ & Qt

21 February 2026 19:30

First time for me getting something useful out of AI.

C++ & Qt

27 January 2026 10:36

zoomFactor doesn't seem to change when you use Ctrl + mouse scroll to zoom. Anyone knows how to properly sync them?

C++ & Qt

27 January 2026 00:58

day one learning c++ i have no idea on how to start

C++ & Qt

25 February 2026 15:06

hello guys! long time no see!

so i am developing a bit of realtime video streaming client. the rtp and encoding are already handled by the uvgrtp and libav

i have other implementation that is based entirely on gstreamer pipeline (gst.h), that is a lot of a heck easier


i want to show the raw frame buffer (packed rgb or planar yuv 4:2:0) to the user efficiently. i have implemented the qpixmap label thing but it involves a lot of data duplication and in general does not seem professional to me. i am planning to use the opengl widgets integration so my question is: is there some ready-to-use reatime-video-display widgets to put pixels on the screen efficiently from memory?

i tried to investigate the docs qvideowidget thing but i was not able to understand how to pass my own raw data pointer to qvideoframe.

maybe someone have done something simmiral in qt already and could provide some directions?

C++ & Qt

23 February 2026 18:15

But yes - when you're learning these, writing test programs that use the STL algorithms available - benchmarking them to see how they work does help a lot to understand.

C++ & Qt

23 February 2026 18:12

Yes — I was doing a Qt 6 porting effort for Renderdoc a few weeks ago - and RenderDoc has its own string class (rdcstr) with cast operators between it and QString.

In Qt 6, QString went from being internally stored as UTF-8 to being stored as UTF-16, which made conversions more expensive, so I didn't want to make the conversions between QString and rdcstr implicit (plus, the compiler kept giving me ambiguous overload selection errors).

So — to make all of the conversions explicit, I needed to modify a *LOT* of code, and not something I could craft a regex to do. GenAI was a real big help here.

C++ & Qt

23 February 2026 18:10

std::vector is your default choice except you have a good reason not to

C++ & Qt

23 February 2026 18:07

Ronald Rivest is also the very same "R" in RSA, btw.

C++ & Qt

23 February 2026 18:06

Nah, I suppose it isn’t that much worse than most textbooks but it’s a lot more fun when you can use it immediately (and experience what it is all about)

C++ & Qt

23 February 2026 18:02

I didn't find the "Introduction to Algorithms" book to be dry — though you do need to consume it in small chunks to really understand it.

C++ & Qt

23 February 2026 12:13

Куплю USDT TRC20. Без посредников.

C++ & Qt

23 February 2026 11:26

Use only English here, please.

C++ & Qt

21 February 2026 19:47

I’m like that too. It’s easy to lose control of the project if the ai does too much on its own. I like to discuss with it and perhaps make write specific functions and boilerplate code.

C++ & Qt

21 February 2026 19:38

Plus: Suggestion: "Put X and Y into its own thread!" - yeah, sounds like a really good idea. "I can do that for you!" - Naah, where's the fun in that!

C++ & Qt

21 February 2026 19:35

I think it has improved quite a lot only the last six months or so

C++ & Qt

21 February 2026 19:30

I dumped a class of one of my projects into ChatGPT today and asked for useful feedback - and actually got it.

C++ & Qt

27 January 2026 07:35

1) https://www.youtube.com/watch?v=-TkoO8Z07hI
2) https://www.youtube.com/watch?v=8jLOx1hD3_o

C++ & Qt

27 January 2026 00:56

Welcome to the group, @lusthazar! :-)

Wanna share your story of how you started with Qt, QML or C++? Maybe some nice feature that made you stick with it.
Rules are set on the description of the group. :)