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| markjl |
| Posted: Jan 25 2011, 02:55 PM |
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Newbie
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Hello
I get the following message when I try to open for edit a file previously recorded with Vdub:
'Couldn't locate decompressor for format 'MPEG' (unknown). Virtual Dub requires a Video for Windows (VFW) compatible codec to decompress video. DirectShow codecs such as those by Windows Media Player are not suitable.'
What can I do? Thanks in advance. |
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| ale5000 |
| Posted: Jan 25 2011, 04:16 PM |
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Advanced Member
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Is it an .avi file with MPEG video?
If yes, you should go on the VFW configuration of ffdshow-tryout then Decoder => Codecs and enable "MPEG in AVI".
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| markjl |
| Posted: Jan 25 2011, 04:25 PM |
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Amazing. Thank you, that would have been difficult to find. It works.
Which is 'better' : libmpeg2 or libavcodec? |
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| ale5000 |
| Posted: Jan 25 2011, 04:48 PM |
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I'm not sure about the differences.
But libavcodec in general have a good advantage, it handle very well also broken files.
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| markjl |
| Posted: Jan 25 2011, 05:01 PM |
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Did I read somewhere that Vdub doesn't work on Win 7 64 bit?
The procedure above doesn't anyway.
I can't open the same file with Vdub on Win 7 64 bit, having followed the same config procedure. |
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| dloneranger |
| Posted: Jan 25 2011, 05:13 PM |
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No, it works fine
On an x64 system you can either
1) use virtualdub 32bit and ffdshow 32bit
2) use virtualdub 64bit and ffdshow 64bit
(64bit os's run 32bit programs as well)
ffdshow has separate settings for the 64 and 32 bit version
32bit programs use 32bit dlls, codecs, etc
64bit programs use 64bit dlls, codecs, etc
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| markjl |
| Posted: Jan 25 2011, 06:19 PM |
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It seems the codecs are different from 32 and 64 bit. |
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| ale5000 |
| Posted: Jan 25 2011, 06:28 PM |
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Look here: http://sourceforge.net/projects/ffdshow-tryout/files/
You can find both the 32 and 64-bit version of ffdshow-tryout.
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| markjl |
| Posted: Jan 26 2011, 08:45 AM |
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I did that, thanks.
I find that the encoders available in 32 and 64 bit versions are different however.
http://mjlvideo.fr/techdocs/virtual_dub_encoders.pdf
Is this a setup thing or because they haven't been developed yet? |
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| ale5000 |
| Posted: Jan 26 2011, 02:38 PM |
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I use ffdshow only for decoding, for encoding I use a more specific encoder.
To encode video in H.264 there is this: http://sourceforge.net/projects/x264vfw/files/ or this: http://komisar.gin.by/ (both 32 and 64-bit)
To encode audio in AC3 there is this: http://fcchandler.home.comcast.net/~fcchandler/AC3ACM/ (both 32 and 64-bit)
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New VirtualDub forum
VirtualDub AIO (All-in-One installer for VirtualDub and plugins)
Codec Toolbox RS (A tool to read/change merit of codecs and many other things)
Input plugins for VirtualDub / ACM codecs / VFW codecs |
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