#737 AVS Script Creator could not open file



I used to use MeGUI's AVS Script Creator to gen my input scripts until that my HDD crashed...
Now I have a new HDD, I downloaded the last MeGUI Stable version (2418) and the last neroAACenc. However when I open any .avi file (it's often encoded with XVID), AviSynth Script Creator returns this error:

AviSynth script error:
AVISource: couldn't locate a decompressor for fourcc xvid

For .mp4 files (encoded with x264), the preview window take a lot of time to display, and then it's only a grey frame. In the tab "Script" I can see that the script has been generated properly, but once the preview window closed, MeGUI crash.

I tried to open directly open a .avs file that of that open a .mp4 file with x264 codec (I disabled the preview window), and when I start encoding, MeGUI immediately returns an error (I attached the log).

I don't know what to do in this case, seems all files are up to date... So I beg your help X)

1 Attachments


  • Zathor

    Zathor - 2013-11-24

    Likely you do not have the proper codecs installed as AviSource and DirectShowSource need to have the external codecs to decode the source. You can try to switch to FFMS within the File Indexer.

    Additionally regarding this error in the log:
    ---[Error] [24/11/2013 16:28:33] avs [error]: Plugin C:\bin\MeGUI\tools\avs\directshowsource.dll is not an AviSynth 2.5 plugin.

    How did you install your MeGUI build? It seems that the files in your folder C:\bin\MeGUI\tools\avs\ are out of sync. Close MeGUI, delete this folder, start MeGUI and let it update from the internet.

  • kirly

    kirly - 2013-11-24

    In fact, I just extract the archive in C:\bin\MeGUI. On the other side I never installed a codec pack like CCCP or K-Lite since I changed my HDD. I always thought MeGUI had its own codecs, so it might be the trouble :p. I delete the MeGUI directory and recreate it. I will check it works with a codec pack installed, and confirm it was the only trouble.

    Thanks a lot for this quick response, keep improving MeGUI ! ;) (and sorry for my English)

  • Zathor

    Zathor - 2013-11-24

    So you have overwritten an old MeGUI installation with the new zip file? If yes this problem should with the wrong plugin is quite strange.

    You do not need to install any codec packs. When you use the file indexer internal codecs will be used. But in some cases this may not work and then you have to switch to DirectShowSource/AVISource - but only if everything else fails.

  • kirly

    kirly - 2013-11-24

    It was a simple extraction of the zip file. Now I have deleted this directory and extracted again the zip file, just to make sure I run MeGUI with a clean environment. I will launch auto-update in the next days.

    I have known MeGUI when there was no FileIndexer and I thought it was a kind of "OneClick" encode. After all this time, it is good to know that it is more efficient. Make me think I should read the update notes XD. Thanks again, I shall inform you about the evolution of my situation.

    EDIT: So FileIndexer works without external codecs, but what about DirectShowSource/AVISource? (might be good to know)

    Last edit: kirly 2013-11-25
  • Zathor

    Zathor - 2013-12-29

    For AVISource or DirectShowSource you need proper codecs to be installed. I recommend LAVFilters:

  • Zathor

    Zathor - 2013-12-29
    • status: open --> pending
  • Zathor

    Zathor - 2014-05-18
    • status: pending --> closed

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