Do you use AviSynth for DV?

[bb]

I thought it would be interesting how important AviSynth is for a DV user.

bb

[vhelp]

hi bb..

I voted for vdub.

I had hoped you wouldn't mind my posting here :)

My explanation is simple. I don't use AVIsynth (AVS) in my DV projects, yeay!!

I use vdub.. double yeay!!

DV seems to be first priority on my list these days.. and I've ben spending
countless hours, days and nights on this area of Video process and techniques.

For my DV projects, they enclude nothing other than MPEG-2 final outputs,
and encodes with or with out Interlace.. though I'm heading for a non-interlace
future.

With DV...
I do not prefer to use any filtering, other than maybe some resizing and/or
various forms of De-Interlace techniques for encodes to MPEG-2. So, because
vdub allows me to see all my changes in an instant and I can react rather
quicly, I choose vdub over AVS. I do maintain a great number of AVS scripts
though. I sometimes test vdub -> AVS and vis versa scenarios.. including my
BETA test of DV to film conversion, w/ only the sound giving me headaches w/
the de-syncing.. and this is what I use AVS for in my DV projects thus far.

Thanks for your time in hearing me out,
-vhelp

[ulfschack]

Avisynth is invaluable to me in the respect that I can add borders to my DVD encodes to compensate for TV overscan, and in this process with resizing and such I want to be absolutely certain that it handle the interlace fields correctly. Avisynth lets you control every last detail so that you can be sure it's done properly.

I also use it for noise filters, but VD can do this equally well.

cheers

[IJM]

I use AviSynth to average multiple DV captures and use the Conv3D filter. But I don't save as DV. Instead, I use Huffyuv for my intermediate files. It avoids any potential generational degradation issues.

As stated above, AviSynth also lets you control things absolutely precisely, which is super-essential when working with interlaced video.

Ian.

[RathO]

I use AVISynth for all my DV footage with some C3D filtering, ... i convert to XviD --> 1 hour per CD (video ~1500 kbps) with Vorbis audio @ ~80 kbps. I resize using BilinearResize and deinterlace with KernelDeint. I now use DVsubmaker to include a timestamp in my matroska files... :p

Regards

[Mug Funky]

@IJM: wow! didn't think anybody had the time and space for multiple huffy captures... respect :D

myself? i use avisynth even for stuff most would use after effects... i've got a handy chroma keying script in avisynth that's faster and better than i've been able to get with after effects (maybe haven't tried hard enough in the latter). you have the added bonus of oodles of great denoisers and very competent colour correction tools. all free.

plus it satisfies my nostalgia for the non-GUI days of old DOS. i get to type stuff in and hope it works.

oh, and if it's immediate results in VD, then VD in conjunction with AVS is almost immediate. simple make a change, click save, jump windows and reload the file. only takes a second or so longer than in VD.

[edit] hehehe. btw, i voted "use it all the time"

[IJM]

Originally posted by Mug Funky
@IJM: wow! didn't think anybody had the time and space for multiple huffy captures... respect Ah well, first three rules of digital video... disk space, more disk space and even more disk space!! :D

Only the intermediate work files used Huffyuv. The original captures were all Type 2 DV AVIs, 1h33m each adding up to 20Gb per capture (five in all). They were all read into an AVISynth script, averaged together and only then saved as one Huffy file which was about 36Gb. That was then run through another script to apply the Conv3D filter, thus creating another Huffy file. I could have done that at the same time as the averaging, but I was on a learning curve and wanted to see the results after each stage.

It does take time, but I was after quality first and foremost.

Ian.

[bb]

IJM,

I guess you were talking about GB, not MB. ;)

bb

[IJM]

Originally posted by bb
I guess you were talking about GB, not MB. ;) umm... yes. I wondered when you were all going to spot that! ;) :rolleyes:

Corrected now, thanks.

Ian.

[SiliconSoul]

so i know this thread is a little old but viewing it i have a question that is brought up in it....
im going to use AVS to resize and filter DV....

first i edit in video vegas then save as DV...

does it matter that much to save as Huffy?

does saving to DV then saving that DV to another DV cause generational degradation issues?

[bb]

Originally posted by SiliconSoul
im going to use AVS to resize and filter DV....

first i edit in video vegas then save as DV...

does it matter that much to save as Huffy?

does saving to DV then saving that DV to another DV cause generational degradation issues?
There is a small generational degradation when resaving to DV. It's not much, but sometimes too much for perfectionists ;) Huffyuv is lossless, so there's no generational degradation at all. Another option to avoid DV recompression is frameserving.

bb

[SiliconSoul]

okay thanks!

doing this for a friend so if i was getting paid to do it might be worth it but since i took my time to shoot the video and now edit and encode... saving to DV once is not that bad! :D

now if it was for myself or getting paid to do it id think about it!

[nicco]

Sorry, I know I still have to learn many things, but...what's "Huffyuv"?
I capture my DV file with Premire and I edit it, then I export timeline to my final DV-movie and I encode it in Divx (through Avisynth). Is it lossy? Do I have to frameserver from Premiere? (can I do it with Avisynth?)How can I do?

[bb]

nicco,

Huffyuv is a well-known lossless VfW-(= Video for Windows) Codec. You'll find hundreds of posts if you don't mind searching.

Regarding the frameserver, there's a sticky thread named "Links" with a link to the PluginPac FrameServer for Premiere, MediaStudio, and Vegas.

bb

[nicco]

Thanks a lot..