VirtualDub, Help

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VirtualDub, Help

Postby McDoogle-san » Thu Feb 22, 2007 8:44 am

I just got some time to try and re-encode my episodes of bleach using virtualdub, and i keep getting an error when i try to open a file.

Code: Select all
Couldn't locate decompresser for format 'DX50' (unknown)

Virtualdub requires a video for windows (VFW) compatible codec to decompress video. DirectShow codecs, such as those used by windows media player, are not suitable


am i not using the program right? because DivX isn't exactly a windows codec that im using?

any ideas?
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Postby BasharOfTheAges » Thu Feb 22, 2007 9:04 am

It is, however, the codec the video is encoded with. You need it to be able to decode the video so you can put it into another format.
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Postby McDoogle-san » Thu Feb 22, 2007 6:31 pm

but i can decode the video, its fine, im using the DivX codec for it.
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Postby Scintilla » Thu Feb 22, 2007 6:41 pm

Apparently you're not using a version that has VfW support, then.

<a href="http://www.koepi.org/xvid.shtml">XviD</a> should decode DX50 just fine, if you set it to in the codec options.
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Postby McDoogle-san » Fri Feb 23, 2007 9:19 am

ive just installed it now and uninstalled my DivX and AVi package, ill have to restart to see if it worked or not.
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Postby McDoogle-san » Fri Feb 23, 2007 1:00 pm

ok, everything now is fine, i can import it perfectly fine and change everything fine, but i do have a small problem again.

When i export it using a Mjpeg compression, it only gets to 10 seconds in to the episode through compression and its already 300mb, i dont see why, its not acually as good quality and all ive done is added a crop filter, ive tried it with a normal windows compression and with no audio and no filters but its still the same. one episode will be 6GB at this rate.
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Postby Scintilla » Fri Feb 23, 2007 5:47 pm

Because MJPEG doesn't use temporal (inter-frame) compression, like distribution codecs such as MPEG-1, DivX/XviD, etc. do. It's basically just applying a round of JPEG compression to each frame separately.

If you want smaller MJPEG files (keeping resolution constant), basically your only real option is to turn down the quality setting(s) in the codec configuration.
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Postby McDoogle-san » Sat Feb 24, 2007 6:47 am

well i dont understand why my episode 9 is Mjpeg compression, has the same quality and same resolution as the DivX episodes but its 20mb smaller than them.
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Postby McDoogle-san » Mon Feb 26, 2007 11:08 am

i really o want to get this sorted out, can anyone help me?

*bump*
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Postby BasharOfTheAges » Mon Feb 26, 2007 12:15 pm

does it really matter? these are just preview files, right?
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Postby McDoogle-san » Mon Feb 26, 2007 4:42 pm

no, this is my entire collection of bleach, all 118 episodes, and i really want to make another AMV soon. ive got 3 ideas so far.
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Postby BasharOfTheAges » Mon Feb 26, 2007 5:01 pm

ok, misunderstood the question. Either make just the clips you want in a codec like huffYUV or invest in massive HDD space.
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Postby McDoogle-san » Mon Feb 26, 2007 5:31 pm

well i havnt exactly got hte money for a HDD as big as 500gb or something like that so ill just have to convert the cliped parts i want like you said then once ive finished with them, delete them, thx for the help.

IM nto sure which codec they used to compress episode 9 XS
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