Viewing profile — bjano

Nothing is uploaded, everything runs locally.

The creator of that repo has a blog with some posts on building a wasm version of FFmpeg, I mostly followed those: https://jeromewus.medium.com/ I also used some of their scripts f…

I found that I am using ChatGPT more and more to get the FFmpeg command I need, but the process can be a bit tedious: copy-pasting commands, dealing with input file names and locat…

.avi file just shows a spinner in place of the preview, never finishes loading .mkv files are not enabled in the file picker, if I select one anyway it loads, but the export hangs …

The site claims "versatile codec support" but I couldn't get it work with anything except the most vanilla h264 files. (though as I am working on a similar product I am aware that …

You don't need to keep the video files in memory, it's enough to have the javascript File object and then you can read the packets you need on the fly. This way the app's memory us…

It seems to me that the demonstration is calculated in sRGB space, so with non-linear brightness values and I suspect that most of the unnaturalness of the smear is due to that. To…

I've been having the same issue with an app. Random rejections with a single line copy-pasted from the (genuine) feature list in the app description. In this case the lines just st…

I use a WebAssembly build of FFmpeg to extract the streams and packets from the video files and as a fallback for some codecs. But most of the decoding/encoding is done with WebCod…

I've built the UI library myself, it's written in C++ and is drawing with OpenGL. (translated to WebGL by emscripten) Javascript is only used for the browser-related parts. The poi…

WebCodecs is missing. They say it's "worth prototyping" [1] but I don't know whether they are working on it. 1: https://mozilla.github.io/standards-positions/

For people who don't want to sign up but still like the idea of a video editor running in a browser (that doesn't upload anything), I am working on an alternative: https://vidmix.a…

https://vidmix.app checks all the boxes: in the browser, layers, no watermark, captions, giphy integration, mp4 in and out

Yes, the shortcomings of the html video tag are quite unfortunate. Just some very small improvements would make it a lot more useful. One other issue I found at the time I was look…

In Chrome and Edge you can use WebCodecs to decode and display video frames one-by-one. (this is what I used for the video editor at https://vidmix.app ) In other browsers you coul…

Couple years ago there was a similar site with the same idea about listing all private keys. If you "found" an active address it was immediately emptied. (I am not sure if it had a…

The biggest problem is not supporting h264 encoding for the output. Also as the preview playback is done with html video elements and those can't be started at a precise enough tim…

At the moment I don't have plans to make it open source. I suspect that the drag and drop limit of 5 may be a browser/OS limitation, now I couldn't reproduce this but will look out…

It doesn't have WebCodecs: https://caniuse.com/?search=videodecoder

Thank you, great to hear that you like it! mp3 files not loading was an embarrassing bug, I just fixed it, should work now. (only remaining issue I just realised is that the volume…

Hello HN! WebCodecs landed in chromium recently opening new possibilities for browser-based video editing: instead of relying on cloud-based processing, everything can now be done …

WebCodecs is available since the latest Chrome, so it is now possible to use hardware accelerated codecs from the browser. Instead of uploading & downloading GBs of data and paying…

They published their demo calculator app on the Play Store: https://play.google.com/store/apps/details?id=uno.platform.c... All the top reviews are talking about how slow it is. A …

I also use a cross-platform framework that "renders every pixel". The two major problems I had are the lack of native input and the integration with native ad SDKs. I solved the in…