Xmpg and DVD2AVI MMX

omarh · 29 Nov 2001, 05:30 AM

I recently found that if I use that custom version of flask, the one called xmpeg or something like that, it has a setting called "DVD2AVI MMX", and when i use that, my encoding speed goes from 5 or 6 fps in regular flask, to 8 or 9fps. which is almost the same that i get from the standalone DVD2AVI used as a frameserver to virtual dub

omarh · 1 Dec 2001, 04:06 AM

Ok I learned something new I thought I'd share with you all.
When encoding Star Trek TMP, I noticed that xmpeg does a horrible job when using the other AMD IDCT algorithm i found to be the fastest. xmpeg also messes up the resolution or something it squashes the picture. i dunno maybe i set it up wrong...
but I encoded the same movie in DVD2AVI as a frame server to virtual dub, and the result was awesome!!! we're talking beautiful looking divx 4.11 video.

kheperi · 2 Dec 2001, 07:49 PM

Ah a xmpeg topic!

I think its buggy. But i would like to keep using it because the results with divx4.11 2-pass look GREAT!

But it seems as if the settings arent working as they should.
Default colorspace is set to rgb. with this setting for some reason i dont understand i got VERY BAD playback in all players, EXEPT the playa. although the other players where using the 4.11 codec too.

But after trying a lot of things and also with different colorspace settings i tried again with the same settings (rgb), the same movie, from the same dvd-rip etc... and now it was working ok!!
thats strange.
Now i'm running a test with JV12 set. In fact i'm not really shure what the differences are and what exactly are the (dis)advantages...

omarh · 3 Dec 2001, 01:56 AM

What is the main difference between 1 pass and 2 pass anyway??? is the file size smaller? does it handle high motion better???

kheperi · 3 Dec 2001, 02:37 AM

well for one thing the size of the resulting file is predictable. And second: the codec gets a better chance to work at its optimum compressionlevel (depending on the setting ofcourse) when it 'knows' what lies ahead.

Thats what 2 -pass is about.

29 Nov 2001, 05:30 AM	#1
omarh Member Join Date: Nov 2001 Posts: 97	Xmpg and DVD2AVI MMX I recently found that if I use that custom version of flask, the one called xmpeg or something like that, it has a setting called "DVD2AVI MMX", and when i use that, my encoding speed goes from 5 or 6 fps in regular flask, to 8 or 9fps. which is almost the same that i get from the standalone DVD2AVI used as a frameserver to virtual dub

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1 Dec 2001, 04:06 AM	#2
omarh Member Join Date: Nov 2001 Posts: 97	Ok I learned something new I thought I'd share with you all. When encoding Star Trek TMP, I noticed that xmpeg does a horrible job when using the other AMD IDCT algorithm i found to be the fastest. xmpeg also messes up the resolution or something it squashes the picture. i dunno maybe i set it up wrong... but I encoded the same movie in DVD2AVI as a frame server to virtual dub, and the result was awesome!!! we're talking beautiful looking divx 4.11 video.

2 Dec 2001, 07:49 PM	#3
kheperi Junior Member Join Date: Dec 2001 Posts: 3	Ah a xmpeg topic! I think its buggy. But i would like to keep using it because the results with divx4.11 2-pass look GREAT! But it seems as if the settings arent working as they should. Default colorspace is set to rgb. with this setting for some reason i dont understand i got VERY BAD playback in all players, EXEPT the playa. although the other players where using the 4.11 codec too. But after trying a lot of things and also with different colorspace settings i tried again with the same settings (rgb), the same movie, from the same dvd-rip etc... and now it was working ok!! thats strange. Now i'm running a test with JV12 set. In fact i'm not really shure what the differences are and what exactly are the (dis)advantages...

3 Dec 2001, 01:56 AM	#4
omarh Member Join Date: Nov 2001 Posts: 97	What is the main difference between 1 pass and 2 pass anyway??? is the file size smaller? does it handle high motion better???

3 Dec 2001, 02:37 AM	#5
kheperi Junior Member Join Date: Dec 2001 Posts: 3	well for one thing the size of the resulting file is predictable. And second: the codec gets a better chance to work at its optimum compressionlevel (depending on the setting ofcourse) when it 'knows' what lies ahead. Thats what 2 -pass is about.

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