x264 development - Page 43

baer999 · 12th May 2005, 17:47

Wow I thought the developing is stopped, but now there are a few more versions, my question is:

+ Won a bunch of cycles by not trusting gcc about inlining and
unrolling properly
(about 17% faster globally)

What is 17% faster ? The encoding ? Because i don't know whats is meant by globally

akupenguin · 12th May 2005, 17:56

What does x264 do other than encode? "globally" is benchmarking the whole program, as opposed to listing the speed improvements of one subroutine.

JoeBG · 12th May 2005, 18:05

Quote:

Originally posted by baer999
Wow I thought the developing is stopped, ...

A nightmare.....

@ akupenguin

I hope you´re ok? Everything ok with you and your family?

Doom9 · 12th May 2005, 19:03

Quote:

If you get time could you add controls on the interface for the -aspect switch in mencoder. Sure I can just paste it in via the comandline builder.

I'll put it into the (already long) todo list. Can't promise it will be in the next version as there is quite a bit of new stuff scheduled already.

JoeBG · 13th May 2005, 15:26

What makes "--seek" and how do I use it?

Edit:

It´s for stopping the encoding, sorry, I was too fast with this post

Kurtnoise · 18th May 2005, 09:53

Does the --vizualize command work only on Linux/Unix systems ?

I try to compile x264 on win32 platform with some X11 headers but without success...

Sharktooth · 18th May 2005, 10:15

*nix only

Kurtnoise · 18th May 2005, 11:19

shame yeah...maybe someone can try with a cross-compile ?

bill_baroud · 18th May 2005, 12:40

well if you need a X11 client, you're somewhat screwed on windows... i think i remember something about one, but it wasn't free iirc.

nm · 18th May 2005, 13:30

Quote:

Originally posted by bill_baroud
well if you need a X11 client, you're somewhat screwed on windows... i think i remember something about one, but it wasn't free iirc.

Actually you need an X server (applications are clients) and the free and Open Source Cygwin environment has X.org, see http://x.cygwin.com/

You'll just need to figure out how to compile x264 under Cygwin so that it finds the X headers and libraries.

Sharktooth · 18th May 2005, 14:19

didnt work for me. maybe i'll try again when i have some time.

Leak · 18th May 2005, 15:47

Quote:

Originally posted by Sharktooth
didnt work for me. maybe i'll try again when i have some time.

Works like a charm here; and if you want to build directly under Linux just install coLinux (which is basically a Linux kernel running as a Windows process) and use the X server under windows as a display...

np: Primal Scream - Stuka (Two Lone Swordsmen Remix) (Two Lone Swordsmen - Peppered With Spastic Magic)

Sharktooth · 18th May 2005, 16:23

well, im redownloading cygwin with X11 and i will try re-building x264.

nm · 18th May 2005, 16:44

For those unfamiliar with X11, note that X is not just a graphics library, but an entire client-server architecture in which you have to run the server process, X separately. I suppose the Cygwin X project has basic usage instructions somewhere, so be sure to read the documentation. Also try some X applications like xcalc that come with the server (maybe in a separate tools-package, haven't checked myself). If they don't work, nothing else will either.

Sharktooth · 19th May 2005, 02:59

I managed to compile a win32 build with -visualize enabled but it's useless unless you have cygwin with X11 installed, so i'll keep it disabled...

Sirber · 23rd May 2005, 16:52

Questions:

1) ./configure doesn't like -ffastmath.
2) Can I set -march from ./configure cmdline?

CREXbzh · 23rd May 2005, 17:11

Quote:

Originally posted by Sirber
Questions:

1) ./configure doesn't like -ffastmath.
2) Can I set -march from ./configure cmdline?

You can edit config.mak after ./configure, that sure works.

akupenguin · 23rd May 2005, 18:25

configure --extra-cflags="-march=..."

Sirber · 23rd May 2005, 18:29

ok. I'll try. Thanks!

Sharktooth · 24th May 2005, 09:28

-ffast-math doesnt work with SSE.

13th May 2005, 15:26	#845 \| Link
JoeBG stupid Join Date: Sep 2004 Location: Cologne Posts: 638	What makes "--seek" and how do I use it? Edit: It´s for stopping the encoding, sorry, I was too fast with this post __________________ cu Joe ------------------------ freedom is just another word for nothing left to loose Last edited by JoeBG; 13th May 2005 at 15:32.

18th May 2005, 10:15	#847 \| Link
Sharktooth Mr. Sandman Join Date: Sep 2003 Location: Haddonfield, IL Posts: 11,768	*nix only __________________ MPEG-4 ASP Custom Matrices: EQM V1(old), EQM AutoGK Sharpmatrix (aka EQM V2), EQM V3HR (updated 01/10/2004), EQM V3LR, EQM V3ULR (updated 04/02/2005), EQM V3UHR (updated 17/12/2004) and EQM V3EHR (updated 05/10/2004) Info about my ASP matrices. MPEG-4 AVC Custom Matrices: EQM AVC-HR Info about my AVC matrices My x264 builds. Mooo!!!

18th May 2005, 14:19	#851 \| Link
Sharktooth Mr. Sandman Join Date: Sep 2003 Location: Haddonfield, IL Posts: 11,768	didnt work for me. maybe i'll try again when i have some time. __________________ MPEG-4 ASP Custom Matrices: EQM V1(old), EQM AutoGK Sharpmatrix (aka EQM V2), EQM V3HR (updated 01/10/2004), EQM V3LR, EQM V3ULR (updated 04/02/2005), EQM V3UHR (updated 17/12/2004) and EQM V3EHR (updated 05/10/2004) Info about my ASP matrices. MPEG-4 AVC Custom Matrices: EQM AVC-HR Info about my AVC matrices My x264 builds. Mooo!!! Last edited by Sharktooth; 18th May 2005 at 14:21.

18th May 2005, 16:23	#853 \| Link
Sharktooth Mr. Sandman Join Date: Sep 2003 Location: Haddonfield, IL Posts: 11,768	well, im redownloading cygwin with X11 and i will try re-building x264. __________________ MPEG-4 ASP Custom Matrices: EQM V1(old), EQM AutoGK Sharpmatrix (aka EQM V2), EQM V3HR (updated 01/10/2004), EQM V3LR, EQM V3ULR (updated 04/02/2005), EQM V3UHR (updated 17/12/2004) and EQM V3EHR (updated 05/10/2004) Info about my ASP matrices. MPEG-4 AVC Custom Matrices: EQM AVC-HR Info about my AVC matrices My x264 builds. Mooo!!!

19th May 2005, 02:59	#855 \| Link
Sharktooth Mr. Sandman Join Date: Sep 2003 Location: Haddonfield, IL Posts: 11,768	I managed to compile a win32 build with -visualize enabled but it's useless unless you have cygwin with X11 installed, so i'll keep it disabled... __________________ MPEG-4 ASP Custom Matrices: EQM V1(old), EQM AutoGK Sharpmatrix (aka EQM V2), EQM V3HR (updated 01/10/2004), EQM V3LR, EQM V3ULR (updated 04/02/2005), EQM V3UHR (updated 17/12/2004) and EQM V3EHR (updated 05/10/2004) Info about my ASP matrices. MPEG-4 AVC Custom Matrices: EQM AVC-HR Info about my AVC matrices My x264 builds. Mooo!!!

12th May 2005, 17:47	#841 \| Link
baer999 Registered User Join Date: Jan 2005 Posts: 60	Wow I thought the developing is stopped, but now there are a few more versions, my question is: + Won a bunch of cycles by not trusting gcc about inlining and unrolling properly (about 17% faster globally) What is 17% faster ? The encoding ? Because i don't know whats is meant by globally

12th May 2005, 17:56	#842 \| Link
akupenguin x264 developer Join Date: Sep 2004 Posts: 2,392	What does x264 do other than encode? "globally" is benchmarking the whole program, as opposed to listing the speed improvements of one subroutine.

18th May 2005, 09:53	#846 \| Link
Kurtnoise Swallowed in the Sea Join Date: Oct 2002 Location: Aix-en-Provence, France Posts: 5,191	Does the --vizualize command work only on Linux/Unix systems ? I try to compile x264 on win32 platform with some X11 headers but without success...

18th May 2005, 11:19	#848 \| Link
Kurtnoise Swallowed in the Sea Join Date: Oct 2002 Location: Aix-en-Provence, France Posts: 5,191	shame yeah...maybe someone can try with a cross-compile ?

18th May 2005, 12:40	#849 \| Link
bill_baroud Registered User Join Date: Feb 2002 Posts: 407	well if you need a X11 client, you're somewhat screwed on windows... i think i remember something about one, but it wasn't free iirc.

18th May 2005, 16:44	#854 \| Link
nm Registered User Join Date: Mar 2005 Location: Finland Posts: 2,641	For those unfamiliar with X11, note that X is not just a graphics library, but an entire client-server architecture in which you have to run the server process, X separately. I suppose the Cygwin X project has basic usage instructions somewhere, so be sure to read the documentation. Also try some X applications like xcalc that come with the server (maybe in a separate tools-package, haven't checked myself). If they don't work, nothing else will either.

23rd May 2005, 16:52	#856 \| Link
Sirber retired developer Join Date: Oct 2002 Location: Canada Posts: 8,978	Questions: 1) ./configure doesn't like -ffastmath. 2) Can I set -march from ./configure cmdline? __________________ Detritus Software

23rd May 2005, 18:25	#858 \| Link
akupenguin x264 developer Join Date: Sep 2004 Posts: 2,392	configure --extra-cflags="-march=..."

23rd May 2005, 18:29	#859 \| Link
Sirber retired developer Join Date: Oct 2002 Location: Canada Posts: 8,978	ok. I'll try. Thanks! __________________ Detritus Software

24th May 2005, 09:28	#860 \| Link
Sharktooth Mr. Sandman Join Date: Sep 2003 Location: Haddonfield, IL Posts: 11,768	-ffast-math doesnt work with SSE. __________________ MPEG-4 ASP Custom Matrices: EQM V1(old), EQM AutoGK Sharpmatrix (aka EQM V2), EQM V3HR (updated 01/10/2004), EQM V3LR, EQM V3ULR (updated 04/02/2005), EQM V3UHR (updated 17/12/2004) and EQM V3EHR (updated 05/10/2004) Info about my ASP matrices. MPEG-4 AVC Custom Matrices: EQM AVC-HR Info about my AVC matrices My x264 builds. Mooo!!!