Simple Copy Editing with VirtualDub so long?

[stretch]

Hello all,

Athon 1.5 ghz
>500 mb of ram
7200 rpm ibm 80 gb hard drive
20 gb hard drive scratch disk

This is sort of a two fold question:
I am taking an huffy encoded 720x480 avi file and chopping it up to cut out commercials, using VirtualDub. Later I will append all the chopped up parts back to one avi file for svcd encoding thru TMPGenc.

1) Is it normal for VirtualDub to take such a long time to just edit out part of an avi (it is dubbing at like 5fps) keep in mind I am not encoding here I just what a original piece of the avi? I do have direct stream copy enabled.

2)Is this the proper approach to cutting out commercials and getting ready for TMPGenc?

Thanks Much I A
Stretch

[ZippyP.]

Sorry, don't know about your speed problem but....

You should be marking the parts you don't want then selecting "delete selection." After you cut all the commercials then you only have to save once. No having to reassemble!

8)

[stretch]

Thanks for the reply,
Reason why I am not doing it that way is I don't have enough Hard drive space for direct save like that.
I have one 80gb drive for capture.
3 other hard drives 20 gb 14gb 10 gb
the file is ~60 gb after cutting out it will still be about 40 gb need to spread it out.
Stretch

[SaSi]

Regarding your speed problem, I should think you should be getting more than 200fps in direct stream copy, and like 500fps if you read from one disk and writing to another. On a P4/2.67, for direct stream copy I get 1100 fps average. Even if you were decoding huffyuv and re-encoding (by mistake - but you said you don't), you should be getting like 15~20fps at least). So, there is really a problem here.

The only thing I can think of is that you have not enabled DMA mode for the scratch drives and they work in PIO mode 4 (that is if you use Win2K or XP).

For your HD space problem, I understand you may not be able to throw away your smaller disks and buy a big one. However, if you are using Windows 2000 or XP, you can format the HDs as dynamic drives and group them to form a huge drive. Well huge is comparative, in your case the drive would be 20+14+10 = 44Gb. Better than scattered volumes though.

[lpn1160]

i use avisynths trim command for doing exactly the same thing you are trying to do (cut out commercials). one does not have to split files then re-join them then encode. thats a 3 step process. you can just use virtual dub and avisynth to trim out the unwanted parts, no temp or intermediate files and then just one file to load into tmpg for encoding to vcd, svcd or dvd. avisynth is great, it does it all from resizing to ivtc to filtering to skys the limit. once you start learning it and using it you'll wonder why you didn't use it sooner. as for speed how fast can one go at 720x480??

[stretch]

Thanks For the help,
I realize now the error of my ways.
Didn't dawn on me to use volumes duh! thanks

Also realized frame serving is the answer to the space problem after posting this.

As far as that speed problem though, thats what I had thought, that the fps were a tad slow for just copying.
I will address that, and post, hopefully an answer.



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