Isn't it possible to use one of those mpciconlib found on deviantart?
Like this one http://browse.deviantart.com/?qh=§ion=&global=1&q=mpc-hc#/d4dx8fi
or that one http://browse.deviantart.com/?q=mpc-hc&order=9&offset=24#/d2xga3m
Well, yes -- it is possible and we would love to use some icons from icon libraries found on the internet, as long as the creator licenses them so that they can be used and we come up with the amount of icons we actually need and so on.
This was the one I checked last. The two you linked are nice because they have icons that visually tell you if the file is audio or video, at least the two icons on the last row of the second one's preview

(although I guess they could have more contrast, now it's just two shades of grey) .
If we add per-file type icons, I'm kind of wishing they would have a minimal amount of text on them. The whole idea of icons is to be informative visually, text should really be kept to file names preferably. Too bad the only file format icon that I can come up with straight off the bat would be
Matroska... and the QuickTime logo for mov. Another idea would be to have colors or whatever per "common container/video format" (AVI, MPEG-4, Matroska, OGG, MOV, MPEG-TS, DVD, BD or so).
I think I'll also ask the mplayer2 windows-building guys' opinions when I get to it, as well as some people related to MPC-HC. I don't think anyone would object to a thought of a common base for such things as media icons, if possible.
Either way there is no "M4V" icon, and assigning it an icon that says "MP4" or "MOV" can be confusing then. Not to mention that mp4box has been using that extension for "raw" MPEG-4 SP/ASP video streams.
I would say it's closer to mp4, thus if it would get an icon I would probably have it and m4a have an mp4 icon. And yes, just remembered the fact that raw mpeg-4 part 2 streams used to be output as "m4v". LOL
Thankfully not many "normal users" have such raw streams, and it is MPEG-4, thus "MP(EG)4 + Video" not actually being completely incorrect in either case \o/
This is a nice example of how bad idea these extension-icons can be in general though.
And yes, indeed. I kind of wish we had icon decisions based on magic values, but I guess that would be a completely different bag of worms
