I use it to inspect video frames by frames, particularly being able to go back one frame. VLC doesn't support it, this thread about the feature is hilarious https://forum.videolan.org/viewtopic.php?t=120627
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> this feature is algorithmically impossible
> You're just looking at one specific video, not the general problem.
> is not generally possible.
As a fellow multimedia dev, man, who cares? Sometimes we forget that software ought to be useful, not hypothetical ideals of truth. Just implement the feature for those codecs that support it and which probably are in the 98% percentile of what users actually use, regardless of the damned "general case".
Or accept and announce shamelessly that you don't have either the knowledge or the development resources to tackle such a complex feature. But excuses about not being possible for absolutely every possible codec in a completely generic way is just denying that the world is just a chaotic and dirty place where things are not ideal nor perfect. Just give your users a real-world solution (or rejection).
I don't know how they get away with that though. In the coding work that I do, I'm constantly dealing with rules that have exceptions on top of exceptions. I just need to special-case some things, because the alternative is not delivering what the business needs.
What are you even saying about the choas of the world?! Every dev knows how work is. You are just describing every other software job. Somehow it sounds like you are boasting how matured you are just because you do what your client asks/needs. Even then, many business/software make a concious choice to support or not support something based on some guidance. The guidance could be some core principles or just some product managers whim.
It's highly likely that VLC developers chose not to support the feature for the very reason(s) that's described in the post. It's a concious choice they made. I don't see anything wrong in that. They definitely are not some school kids with some daddy issues to hide behind some code. They clearly have answered all the questions from a technical stand point.
And TBH the VLC example hardly even seems hacky. If you have a stream that can be seeked backwards in, then find the previous I-frame and internally run the video forward to the frame the user wants to see. That is exactly what the user is forced to do manually anyway.
As far as it sounding like I'm boasting, all I can really do is assure you that was not the point. I was contrasting my experiences with how people tend to write about software development in blog posts and in comments on places like here. I do not think I'm better than them simply because I am ok with implementing hacky solutions where I think they make sense. But I am annoyed when useful features are denied because it would require a hacky solution. For FOSS, it's entirely within the devs rights to operate that way, but to me that's one way FOSS software can sometimes fall short of commercial software.