Guides and AMVapp Public Alpha/Beta Test

CHAMELEON_D_H · Post by **CHAMELEON_D_H** » Wed Sep 29, 2004 12:51 pm

a Question about 23.976fps to 24 and back: the "old" guise says to use abcavi tag editor, and the new guide doesnt have that page yet, so i was wondering if thats still the best way to get 24FPS -> 23.976FPS conversion, of should i use avisynth?

and if avisynth, than before or after i apply filters?

AbsoluteDestiny · Post by **AbsoluteDestiny** » Wed Sep 29, 2004 12:52 pm

If you are using avisynth then just use avisynth.

You can do it at the end if you like, it wont actually affect any filters.

Scintilla · Post by **Scintilla** » Mon Oct 04, 2004 9:15 pm

RTSI's release of Kare Kano...

- from http://www.animemusicvideos.org/guides/ ... ogetb.html

Scintilla · Post by **Scintilla** » Mon Oct 11, 2004 6:57 pm

Confusion on the MPEG-1 encoding section (but this is dated 2002, so I'm surprised someone didn't catch it sooner):

<a href=http://www.animemusicvideos.org/guides/avtechbeta/mpeg1.html>The MPEG-1 page</a> wrote:If you want a 40MB file, take 41680, divide it by the # of seconds in your video, subtract 224 (or whatever bitrate you've got for your audio) and that's what you should put for your average bitrate.

The problem is that
40 * 1024 = 40960

though this isn't completely understandable, when you consider that
40 * 1042 = 41680

Scintilla · Post by **Scintilla** » Mon Oct 11, 2004 6:59 pm

Scintilla wrote:though this isn't completely understandable

Of course, what I meant to say was "though this isn't completely un-understandable" (if that's even a word).

Scintilla · Post by **Scintilla** » Mon Oct 11, 2004 7:12 pm

Okay, I'm really sorry for the triple-post, but Cy and I just found another problem with the bitrate calculation method described in ErMaC's MPEG-1 encoding page...

You start with 40 MB
40 * 1024 = 40960 KB
Divide by number of seconds = KB/sec

The problem is that the final value has to be in Kbps (in fact, it has to be in Kbps before we subtract the 224Kbps for the audio), but nowhere in the process is there a conversion from bytes to bits... you have to multiply by 8 at some point.

What sparked this discovery was when Cyanna told me that she was getting a negative number for the final result.

Now I'm really surprised nobody caught this in two years.

Herbert West · Post by **Herbert West** » Tue Oct 12, 2004 10:36 am

The "exporting huffyuv" pic is linked to your local harddrive:

http://www.animemusicvideos.org/guides/ ... xport.html

AbsoluteDestiny · Post by **AbsoluteDestiny** » Tue Oct 12, 2004 10:38 am

Herbert West wrote:The "exporting huffyuv" pic is linked to your local harddrive:

http://www.animemusicvideos.org/guides/ ... xport.html

Yeah, I know. I've got to update it with a few things but I dont want to do the current update until I'm more certain that the amvapp will be a little more XP friendly as it's not at the moment.

Corran · Post by **Corran** » Tue Oct 12, 2004 6:03 pm

What is wrong with it? I recently upgraded to XP Pro with service pack 2 and things seem to work fine for me.

AbsoluteDestiny · Post by **AbsoluteDestiny** » Wed Oct 13, 2004 2:45 am

Corran wrote:What is wrong with it? I recently upgraded to XP Pro with service pack 2 and things seem to work fine for me.

Well when I installed it on Quu's machine for use on DDR I noticed that the warpsharp version I was using wouldnt load, amongst other things.