Is there possible a xvid build compiled for x86-64?

[gino25]

In september, athlon 64 will be out.

Now opteron is available.


Is there possible a build of xvid optimized and compiled for x86-64 platform?

Will Nic or Koepi do it?

In my opinion on this platform speed will increase

Hello

[sysKin]

AMD64 platform has been available on sourceforge's compile farm for some time now. As far as I remember, gruel compiled xvid successfuly and run some tests.

The results were pretty good - check July's mailing list for details. However, there was one big problem - mmx/sse/3dnow! optimized functions, which are normally used at every step - could not be compiled, because there is (or at least there was) no nasm for amd64. Plain C is not as fast.

For plain C, amd64 easly beat P4. With optimized assembler, P4 was faster. It's easy to deduce that for optimized assembler - once it's available - amd64 will be faster again...

Let's wait for 64-bit nasm :)

Radek

[gino25]

Thnk you very much syskin.

I wait an amd x86-64 xvid build in future:D

Hello

[symonjfox]

Isn't it possible to keep mixed code (64bit and 32bit) since Athlon 64 is able to use both?

It also have SSE and SSE2 istructions.

PS: I don't know a lot about programming. I only guess ...

[zurv]

Does the encoding program need to be 64-bit too?

ie, if one had the right codec in 64-bit would we see the boost in encoding time even if the program (say VirtualDubmod) wasn't?


my guess is it's the codec that is the key. Even tho winxp x86-64 is not that most stable yet for game'n and such - i'd think it would be fine for encoding (as it doesn't need to interface much with many API's or HAL)

that all said.. any updates on ppl using AMD64's? i have 2 systems here with OC'd 3200XP 64 chips (winxp 32). 10-20% faster encoding compaired to the same clock speed athlons. (i mainly use wm9 vcm and xvid)

[Sharktooth]

64bit nasm... ? Too much waiting.
use YASM (http://www.tortall.net/projects/yasm)!
We recently released 0.3.0, a major release that adds ELF support and improves AMD64 handling.

[sysKin]

Originally posted by Sharktooth
64bit nasm... ? Too much waiting.
use YASM (http://www.tortall.net/projects/yasm)! Bah, you just read mailing list didn't you? GomGom fixed all yasm support a few days ago. The only exception is colourspace conversions, they don't work on yasm because of some yasm bug.

So, you can compile 64-bit xvid now. Yes, I bet you'll need 64-bit virtualdubmod (so you have to compile it as well) and a 64-bit operating system (read: use linux).

Have fun, IF you have amd64 ;P

Radek

[Sharktooth]

@syskin Relax :P
My post was pure sarcasm :)