AVI file size: Studio 8 x VirtualDub

[Hertt]

I´ve been able to capture VHS tapes to the computer and put them into a good quality MPEG2 file using Studio 8.

However, when I captured a video from my sony handycam I got into the trouble of having to deinterlace the video to be able to watch it with a better quality.

The problem I have is:

when I capture a 2 hours video using Studio 8, at a bitrate of 3000 and a resolution of 640 x 480, I get an AVI file which is 21 GB large.

Then I open virtualdub, select the deinterlace filter and huffyuv compression. When I try to save the file and the computer starts to process the new AVI file big the estimated file size goes up to 92 GB.

Right now I´m using huffyuv 2.1.1, because when using the huffyuv 2.2.0 I couldn´t open the final AVI file on any program (system always crashes).


Now the question: why Studio 8 can put 2 hours of tape in a 21 GB file and when I try to process the file in virtualdub it goes up to 92 GB? (without compression it goes up to 200 GB)

I simply need to pass the deinterlace filter to get a better image. I don´t wanna change the resolution right now, just apply the filter.

My system:

DC10+
P4 2.4GHz
512 MB DDR 333
120 GB 7200 133
Ti 4800

[sacajaweeda]

Have you considered frameserving from VDub or just doing your resizing and deinterlacing with AVISynth? Might be worth checking out if HDD space is an issue.

[Hertt]

I´m checking AVISynth right now to see if it can help me.

However the question still up: why virtualdub, even with a hyffyuv compression activated generates a file 90GB big if studio 8 gimme the same ammount of VHS time in 21 GB?

[Hertt]

I think I found the answer myself.

When I use my DC10+ in Studio 8 I can´t select any kind of compression codec. Studio 8 must be using something default which so far I don´t know what it is.

Huffyuv 2.2.0 could compress a 21 GB AVI file into a 30 GB one, but I couldn´t open the AVI to work on it later. Every single software I have would gimme an illegal operation.

I saw in the forum that some people were having problems with this 2.2.0 version and were saying to stick with version 2.1.1. This time I could work with the AVI file, but the size went way up to 90 GB.

Last night I gave a try on the PICVideo codec. Now the file basically got the same size of my original capture and also works on everything I got.

The quality in PICVideo is set on 18 and the final result is good enough for me.