I'm very pleased with the 64-bit beta dated 25th December. It can play 4K 60FPS H.265 video nicely on my PC.Yes, most if not all of the HEVC asm is 64bit only. It's just no longer fun to code for the more limited (as in, less registers etc) IA32 side of things. The speed difference will be growing with time: at first it's limited to some specific things, and then more and more of the new things will be getting a 64bit-only treatment.
We have already gotten reports of some issues with the 64bit beta (mostly quite minor things), and we have handled some of them already . Expect a new beta soon'ish (and then a release).
Only minor point is that if you install both the 32 and 64 bit it gets a bit confusing because, for instance, both settings programs are just called "CCCP Settings" so it's possible to get confused about which settings you're changing.Yeah. Also on Windows 8 they started cleaning up shortcuts with the same name and seemingly the same target (which led to the filter property page shortcuts being invisible in the start screen because all of them used the same executable to start those up, for example), so I will be renaming at least some of them if not all for the 64bit edition.
There have been two zero daysw in libavcodec (http://www.binarysniper.net/2015/01/vlc-media-player-215-memory-corruption.html), so please check if they're fixed in the latest beta.I did check the VLC bug tracker for that specific issue some time ago, but I never found a full stack trace, just some samples. j-b says that VLC 2.2 should have it already fixed, and that uses quite an old libavformat or -codec already, so we should most definitely be in front of that. Not to mention that the issue didn't even seem to manifest on newer versions on Windows (at least according to j-b).