Latest-ish MPC-HC ported for XP

[user57]

i find interesting when i talked to sam and dibya and i came up with the idea ffplay would be the option (also on page 13 here), you just came up with that one 

you more or less can forget about LAV - LAV is a software engine that use up like dx11, cuda and other things
the thing what is handling that internal is something they call CUDA (in kernel mode - not the usermode functions)
(look what he writes on his github: NEW: D3D11 support for HEVC 4:2:2 and 4:4:4 hardware decoding v0.80.0)
LAV is not something that provides such en or decoding for h265 and such - its a engine what use a next engine (like dx11, cuda ect.) (its like a script or prescript - what meet its demise later on)

support matrix (NVENC, NVDEC)
https://developer.nvidia.com/video-encode-decode-support-matrix
you actually dont have h266 there - and thats forever (all cards up to 21.12.2025) for that grafic cards because its a print 
<-- what you could do for us is making a last like nvidia did - what LAV and what modes can be done with it, like the one from nvidia

grafic card "encoding" wise there is a big problem , hardware units doing so are a print - so there are many modes grafic from grafic card that is not supported
and printed is printed - while software can be upgraded
the other option like having a programmable core is close to the same thing as if having just 1 cpu core more with software instructions 

cpu decoding dont need that much power even with normal instructions (the XMM registers are a lot faster)
you dont need a grafic card to encode a video or image 
here i wrote exactly this (no video card, no weird dll´s, no weird os functions, no directx, no cuda, no lav):
https://msfn.org/board/topic/185879-winxp-hevcheifheic-image-encoderdecoder/
it use normal instructions if (hardware acceleration is turned off) - if on it checks what XMM registers are available (these are like 2-150 times faster)

also from consideration would be the vLC player - it suppose to work with video´s from H265 - how many modes are not known to me

to CUDA and XP to say is that the CUDA versions that are available on XP are like old, the functions are probaly very limited

the only real option would be to either have the source code of the nvidia driver (how it controls its cuda) 
or how to give that cuda kernel code its controlment (like control/input/output)

so after all of that - yep you right ffplay was my idea too 
but ffmpeg in the past was very self-contained - today they already use also engines, dx11 and such things - so it might also have its limitations 

 

if you really want a h265 support on mpc-hc you have to write a connection from mpc-hc to libde265 (that one can decode h265)

https://github.com/strukturag/libde265