My only issue is (so far), that it would be really great to keep the last frame until seeking the frame of a new position is finished (instead of having a black frame for that time). I already tried to solve that, but without success... My guess is, that I need to read the video.onseeking event or video network status from Pure Data / Ofelia for that (so that I can update the video only if the information is already there...). For that I need to change some of the ofxEmscripten source code:
https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/seeking_event
https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/networkState
https://github.com/openframeworks/openFrameworks/blob/master/addons/ofxEmscripten/src/ofxEmscriptenVideoPlayer.cpp
https://github.com/openframeworks/openFrameworks/blob/master/addons/ofxEmscripten/libs/html5video/lib/emscripten/library_html5video.js
I actually already changed the code for drag and drop and the file browser (and some other issues): https://github.com/Jonathhhan/Pure-Data-Ofelia-Emscripten/blob/main/videoPlayer/library_html5video.js

@EEight thanks for posting the video. It seems I have to use a larger audio buffer size, because your sound is crackling(?) sometimes...

I made a Webassembly Videoplayer with Pure Data / Ofelia / Emscripten. It is possible to drag and drop a video file or to load it with a file browser.

https://videoplayer.handmadeproductions.de/
https://github.com/Jonathhhan/Pure-Data-Ofelia-Emscripten/tree/main/videoPlayer

@Nicolas-Danet I neutralized your downvote.

Nice work (and music). I really like the wooden box with the "arcade" buttons - is that also a selfmade instrument based on Pure Data?

@FFW I use Ubuntu 18.04.5 LTS and Firefox 88.0.1 (64-Bit) (other browsers work too). But would be good to find the reason for those errors.

Hi @FFW, thanks for your bug report. To be honest, I am not sure what is the cause of that. If https://puredatagui.handmadeproductions.de/ works in your browser it could be related to gl es 300, because it is the only of the three examples without gl es 300 shaders.

I made a simple sequencer / synth and a game of life for the web:
https://simplesequencer.handmadeproductions.de/
https://gameoflife.handmadeproductions.de/
Partly to test what works with Emscripten.
Audio works best with the current Chrome dev version.
There are some things that need to be done different in Emscripten, maybe I will make a list of them.
Both patches make use of my GUI abstractions (also tried to optimize them).

Here is a collection of my Pure Data / Ofelia / Emscripten Patches: https://github.com/Jonathhhan/Pure-Data-Ofelia-Emscripten

@60hz never tried, but here is a thread (with solutions) about it: https://forum.openframeworks.cc/t/fullscreen-dual-screen/693