TMPGEnc and automatic judging field order

[lalala789]

Hi all,

I'm using TMPGEnc now for a while (version 2.59) and I frameserve from DVDx 2.0

I want to create a SVCD.

When I set all my option OK in DVDx and I hit the 'encode'-button the 'fake' AVI is created that's used by TMPG to frameserve. After generation of the AVI-file TMPGEnc is started

When I now use the project wizard in TMPGENC, i have to indicate which is the video-source and the audio-source. When I thus indicate the just-created AVI-file, TMPGEnc starts 'judging field order'.

However, as I use frameserving, this takes an enormous amount of time as it passes through almost the whole video (many many hours before it stops 'judging field order')!!! What basically happens is that TMPGEnc asks DVDx to encode about 80% of the video to determine correct field order (through the AVI-file) and you all know that encoding a video (especially using frameserving) takes many many hours to complete.
Needless to say that I don't want many hours of 'judging'!

After judging field order stops, you have to encode the video, this takes again many many hours (20 or more).

Besides, I know the correct field order! (B first)

Why do I use the project wizard then? To determine which framerate I can use to fit the encoded video on TWO CD-R's... (in screen 5 of the wizard). This possibility is not available in TMPGEnc except in the project wizard as far as I know...

Does anyone know a solution to this problem?
e.g. using project wizard and finding some way of avoiding that TMPGEnc does the 'judging field order' automatically.
e.g. it's possible that determining the correct framerate in order to fit the encoded video on two CD-R's, is also available in TMPGENC outside of the wizard...
etc.

thanks a lot in advance for your help!

[Fubonis]

Close the project wizard and click the "Setting" button. "Video" tab allows you to change the fps, "Advanced" tab allows you to change the field order.

[lalala789]

Hi Fubonis,

I know this, tried it already.

The only problem is that with this method (without using project wizard) there is no way of knowing whether the result (encoded video) will fit on two CD-R's. In the Project Wizard you can very easily determine the exact output size of the video and if needed change it.

If you change fps in non-Wizard-mode you cannot know which will be the size of the encoded video (and consequently whether it will fit on two CD-R's or not).

greets,
lalala

[banjazzer]

Use another bitrate calculator - there are several in the tools section.

[lalala789]

Hi banjazzer,

thanks for the info. I have used some of them, and still TMPG manages to produce files which are much larger then the bitratecalculators indicate.
Bizarre!

But to come back to the original problem: is there a way to prevent tmpg to 'judge field order' automatically?

thanks again for your replies,
lalala

[banjazzer]

I would persevere with another bitrate calculator. I just ran a 94 minute avi through TMPG's project wizard as an experiment. I was going for 2 x 80 min. discs and set it to 195% of disc capacity. (I normally go for around 1550 MB for a 2-disc set to allow for easy cutting).
This suggested an average bitrate of 2025 kbps and an estimated filesize of 1532MB.

I ran the same filesize through Bearson's bitrate calculator (my favourite, but not in the tools section). This suggested a bitrate of 2027 kbps to make a 1550Mb file. In practice, the encoded files are a little bit less than this.

Basically, the 2 bitrate calculators seem to agree pretty well, and unless you are aiming for a final disc-size of very close to 1590MB, which would make cutting at a suitable place virtually impossible, I think this is the way I would go.

By the way, Bearsons bitrate calculator was actually designed for estimating DivX filesize, but I find it meets my needs for SVCD very well.