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  1. Member
    Join Date: Oct 2011
    Location: Earth
    Search PM
    I have an AVI video file (no audio , just video) and its about 4minutes and it ways 53.3MB which is rather to heavy for a 4minute video without audio . so i am trying to shrink this video to about 10 or 15mb with virtual dub . I have seen articles online here : http://maketecheasier.com/how-to-compress-a-video-file-with-virtualdub/2009/05/31 and here http://www.makeuseof.com/tag/compress-videos-send-email/ on how to use virtual dub BUT in my own case whenever i try to shrink my video i get an "error 100" message . I would appreciate some help or suggestions . Here is the video analysis from media info:

    General

    Format : AVI
    Format/Info : Audio Video Interleave
    File size : 53.5 MiB
    Duration : 3mn 42s
    Overall bit rate : 2 020 Kbps

    Video
    ID : 0
    Format : TechSmith
    Codec ID : tscc
    Codec ID/Info : TechSmith Screen Capture
    Duration : 3mn 42s
    Bit rate : 2 014 Kbps
    Width : 313 pixels
    Height : 224 pixels
    Display aspect ratio : 1.397
    Frame rate : 15.000 fps
    Bits/(Pixel*Frame) : 1.915
    Stream size : 53.3 MiB (100%)



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  2. Member
    Join Date: Feb 2004
    Location: Australia
    Search Comp PM
    you need techsmith video decoder to start with ... grab from this page

    You might try x264vfw for better compression but techsmith compressed video has already placed you behind the starting block as they generally do not recompress well.
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  3. Member
    Join Date: Oct 2011
    Location: Earth
    Search PM
    I downloaded the both of them techsmith and x264vfw . How do i use either one of these 2 to shrink my AVI file size ?
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  4. 1st one is used to allow Virtual Dub to decode the input (Preview windows should show something now)
    2nd one needs to be selected and configured under video->compression.
    ->
    Option a. : readup
    1. read up on how Virtual Dub works: http://negativesum.net/tech/tools/VirtualDub.pdf
    2. read http://mewiki.project357.com/wiki/X264_Settings to understand the meaning of the setting in the x264vfw configuration (the page linked is not ment for x264vfw, but it should help to understand the options presented)
    Option b. : Wait for someone to write you a guide
    Wait for someone to write you a step-by-step guide, that fits your problem.

    Cu Selur
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  5. Member
    Join Date: Oct 2011
    Location: Earth
    Search PM
    I understand that the video width is the problem as their are not divisible by 2 . On virtual dub > video> filter > add > resize , i am trying to resize my video to 322 x 222 which is the closest to what my video is now 333 x 224 however when i type in 322 the other width automatically changes by itself . how can i force the video to accept the size i am assign to it using the resize option . Please help .
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  6. http://www.virtualdub.org/blog/pivot/entry.php?id=95 -> setting Aspect Ratio to disabled should allow to adjust width&height independently
    btw. I'm still unclear on why use use resize instead of simply cropping (http://www.virtualdub.org/docs_processing.html) one pixel, but you probably have a reason for it,...
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  7. I would crop one line off the width (leaving 312x224) rather than resize. The quality will be better.
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