[XviD-devel] XviD-devel Digest, Vol 70, Issue 3

[lingan]

nasm 2.05.01 doesn't have "-r" option, try to install nasm-0.98.xx which has
"-r" option.

On Mon, Nov 24, 2008 at 2:45 PM, 李冰 <bing.li at autosoft.com.cn> wrote:

> Dear  Everybody:
>
>       First I will thank you all, and double thanks to those who replied my
> questions.
>
>       Thanks to  Michael and Dark Shikari,  I really find that my problems
> were caused by nasm version.
>
>       My  envirionment  is:    Intel Core Duo CPU, 2.16G,  2G Mem, Fedora
> Core 8,    XVID source 1.1.3,  nasm 2.05.01 .
>
>       Belows are the output of ./configure.  Please notice the red-marked
> section.
>
>       It says that my "nasm" is too old!!  In fact my nasm is the most
> recent version:  NASM version 2.05.01 compiled on Oct 29 2008.
>
>
>
> [libing at libing generic]$ ./configure
>
> (..............I omit some unimportant infomation here.)
>
> checking for yasm... no
> checking for nasm... yes
> checking for nasm patch version... nasm: error: unrecognised option `-r'
> nasm: error: no input file specified
> type `nasm -h' for help
> -1
> configure: WARNING: nasm patch version is too old
> configure: WARNING: no correct assembler was found - Compiling generic
> sources only
> configure: creating ./config.status
> config.status: creating platform.inc
>
> [libing at libing generic]$ nasm  -v
> NASM version 2.05.01 compiled on Oct 29 2008
>
>
>
> Thus , my problems are listed below:
>
> Q1.   How to compile xvid using   nasm 2.05.01 ? why my configure can not
> correctly process it?
>
> Q2.   In the xvid_decraw.c , if I set use to XVID_CSP_I420, the decode
> speed may be up to 220 fps(720x576 video),
>        If i use XVID_CSP_RGB565, the speed will slow down to only 80fps.
> I wonder why it consume so much CPU time to do yuv/rgb convertion?
>
> Q3.   When I compile xvid, if I want to use assemble language, I must
> manually define ARCH_IS_IA32 in xvid.h. Or else assemble code will not be
>        compiled.
>
>
>  I hope you can solve these problems for me.  Thanks !
>
>
>
> Best reguard!
> __________________________________
>                  Ice Lee
>
>
>
>
> 发件人： xvid-devel-request
> 发送时间： 2008-11-19  19:00:09
> 收件人： xvid-devel
> 抄送：
> 主题： XviD-devel Digest, Vol 70, Issue 3
> Send XviD-devel mailing list submissions to
>
> Today's Topics:
>   1. Re: About xvid source assembly language optimize(why it does
>      not work?) (Jason Garrett-Glaser)
>   2. Re: About xvid source assembly language optimize(why it does
>      not work?) (Michael Militzer)
> ----------------------------------------------------------------------
> Message: 1
> Date: Tue, 18 Nov 2008 08:50:16 -0800
> From: "Jason Garrett-Glaser" <darkshikari at gmail.com>
> To: xvid-devel at xvid.org
> Message-ID:
> Content-Type: text/plain; charset=ISO-8859-1
>
> Are you really sure that not using "-asm" implies non-asm?  I would be
> quite surprised if that was indeed the default...
> Dark Shikari
> ------------------------------
> Message: 2
> Date: Tue, 18 Nov 2008 18:05:28 +0100
> From: Michael Militzer michael at xvid.org
> To: xvid-devel at xvid.org
> Content-Type: text/plain; charset=ISO-8859-1; DelSp="Yes";
> format="flowed"
> Hi,
> make sure you really compiled xvid with assembly optimizations enabled. You
> need yasm or nasm present - or otherwise xvid will be compiled with c-code
> only.
> Also note that the -m option will write out data to your disk. It might be
> that more time is spent on I/O than on the actual decoding. In that case,
> asm and noasm options could seem to perform similar.
> Regards,
> Michael
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