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View Full Version : How to convert WMV to uncompressed AVI?

xeen
3rd June 2004, 23:23
Apparently, neither VirtualDub nor VirtualDubMod work with WMV files. I have a WMV file that I need to uncompressed to an uncompressed AVI file. What else can I use to do it? Thanks.
Soulhunter
4th June 2004, 18:13
Hmm...

Try to feed it via AviSynth with DirectShowSource !!!


Bye
xeen
4th June 2004, 19:38
Originally posted by Soulhunter
Hmm...

Try to feed it via AviSynth with DirectShowSource !!!


Bye


Any other ways besides that?
stephanV
4th June 2004, 20:17
avisynth will not always work as wmv-files can have vfr i believe.

you can do it quite easily with TMPGEnc, but you would have to input resolution settings manually, otherwise it will resize it.

you could also try to mux it into matroska with graphedit and open that with VDM.
tct666
5th June 2004, 14:52
Mux wmv into mkv(not avi) with Graphedit.
or use avs
DirectShowsource("C:\test.wmv",fps=23.976)
or use tmpg with unlock template
bond
6th June 2004, 22:03
no need for avisynth or matroska:

1) open the .wmv in graphedit
2) delete all filters, except the source filter/parser (*.wmv) and the wmv video decoder
3) connect the decoder to the avi muxer
4) connect the avi muxer to the file writer (*.avi)
5) push play which creates the uncompressed video in .avi
stephanV
6th June 2004, 22:48
i tried that method several times with graphedit, but i constantly got dropped frames in my avifile, screwing up the video length. and there were other things wrong with audiosynch as well. muxing it in matroska (audio in a separte file as wav BTW) and then opening it in VDM seemed to circumvent this problem. i might have a wrong setting in the avimuxer though... although i cant see what (but i do scew up with graphedit from time to time.)

i believe Avery Lee said once that the biggest problem with muxing from asf/wmv to avi is the framerate... or to be more precise the lack of it in wmv. and i have a sneaking suspicion that it is framerate detection that goes wrong when directly muxing to avi.
eb
7th June 2004, 00:24
stephanV,

Please upload sample ca. 5MB.
I am collecting different samples and time to time I am able to present some solution.

eb
stephanV
7th June 2004, 08:06
well, it happened with just about every wmv file i tried so i dont think i need to post a sample (i dont have webspace anyway) and i already have a few solutions for it:

1. do it with TMPGEnc
2. mux in Matroska, open it in VDM
3. mux in avi and then select framerate 'so that audio and video durations match' in VDub - but i dont trust this one because of the D-frames.

thx for the offer though.