VirtualDub filters...

Sdruvs · Post by **Sdruvs** » Tue Jul 01, 2003 3:29 pm

I'm trying to enhace the transcriptions from R8/S8 to video using VirtualDub filters (Deshaker, Hotspot,...). I use to capture from camcorder using DV codec but VirtualDub doesn't open this kind of file. What codec does people here use when filtering thru VirtualDub? No-compression? I could use MPEG codecs but I thing I would loose quality during edition. :?:

Post by **paulcotto** » Tue Jul 01, 2003 6:23 pm

If you have a fast PC I would use uncompressed video. Then you do any filtering and editing and compress with dvix.

Paul Cotto

Post by **mattias** » Tue Jul 01, 2003 7:40 pm

i don't think it's the dv codec but the new avi file format that most dv codecs work with. i'm pretty sure there's a "type 1" dv codec that you can use instead, but it's been a while since i worked in windows. there should be something in the virtualdub docs about it.

/matt

Post by **Old8** » Tue Jul 01, 2003 9:28 pm

I've tried both DV-type1 and DV-type2 and both types of files are not opened by VirtualDub. I think that is because VirtualDub deals with VFW file types and DV is not.

Post by **mattias** » Tue Jul 01, 2003 9:30 pm

yeah, maybe it's not a type-x issue, but there are still dv codecs for vfw iirc...

/matt

Post by **Petteri** » Tue Jul 01, 2003 9:36 pm

You should use AviSynth and VDub! You can make srcipt with AviSynt and then open video file into VDub. With that "frame server" you can open any format your computer can read, into VDub or some other editor as well

AviSynth if Free!

The script you need is following:

AVIFileSource("myclip.avi")

So not very complicated ;-)

http://www.avisynth.org

Post by **Scotness** » Tue Jul 01, 2003 11:45 pm

I found using deshaker I had to export in to a different codec from premiere first (can't remember which one though) - there are some codecs virtualdub can't use - but that frame serving idea sounds like the best solution

Scot

Post by **Old8** » Wed Jul 02, 2003 1:45 pm

Hi Petteri,

I'm trying to use Avisynth and using DV-1 I receive the error message:

Avisynth open failure. Unrecognized exception!

.
Using DV-2 I receive the error message:

Avisynth open failure. Avisource: couldn't locate a decompressor for fourcc dvsd

.
I'm using DV files generated by Ulead, and both types of files are opened and played by MediaPlayer. I think that is something related to registering of codecs, isn't it? Any tip :?:

Post by **Old8** » Wed Jul 02, 2003 2:16 pm

Petteri, I found myself the answer: instead of using AVIFileSource("myclip.avi") I must use DirectShowSource("myclip.avi"). Both types (DV-1 and DV-2) were opened. Great! Now I save one rendering phase using VirtualDub filters direct into DV captured files. Thank you for your advise

:

Post by **Petteri** » Wed Jul 02, 2003 2:36 pm

Yes that would have been my suggestion as well ;-)

Disadvantages to use that method is that you don't get sound, but i think that it does not matter you? Maybe they have even fixed that problem? I don't know, it's been a while since i have used it.

Great! Now I save one rendering phase using VirtualDub filters direct into DV captured files

Have you noticed that you can use VDub filters with AviSynth as well! Then you can open the video file via AviSynth, with VDub filters, into your Editor (i.e. Premiere) directly! Or did you just meant that?

Petteri

Post by **Old8** » Wed Jul 02, 2003 4:06 pm

Petteri, I like to use an easier video editor as VideoStudio from Ulead. I've tried to open an avisynth script file as a video input file and VideoStudio didn't understand it (I don't know if I should do something that I didn't). The install program of Avisynth associated .avs files to Avisynth but I think that is not enough. But it doesn't matter anyway, because what I do is:

1. Capture S8/R8 from projection to DV (I'm transcripting my 50 years old movies to video). I have ~25hours of movies.
2. Filtering with VirtualDub to deflick, remove hotspot, color, brightness, contrast and sharpness correction and eventually deshake. Since deflick and deshake takes two phases, I think it's better to save a intermediate clip file at this step.
3. Then I final edit using VideoStudio (adding titles and music background).

Post by **Petteri** » Wed Jul 02, 2003 4:25 pm

There might be separate FrameServer AddOnn to Avisynht to get it working with VideoStudio, but it goes fine as you do as well...

One great advantage still using Vdub filters with AviSynth, is that if you use same settings all the time, you just have to do one script where the filters are "loaded" and then only change the filename. You can load filtered videofile into Vdub and then just save it in there

That might save some time...

Petteri