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    The following is a hex-ascii dump of the first 300 bytes of an AVI
    (XviD format) file:<br>
    <br>
    <font face="Courier New, Courier, monospace">|52|49|46|46|8c|79|95|00|41|56|49|20|4c|49|53|54|94|6a|00|00

      RIFF.y..AVI LIST.j..<br>
      |68|64|72|6c|61|76|69|68|38|00|00|00|40|9c|00|00|00|ec|36|00 <a
        class="moz-txt-link-abbreviated"
        href="mailto:hdrlavih8...@.....6">hdrlavih8...@.....6</a>.<br>
      |00|00|00|00|10|00|00|00|81|01|00|00|00|00|00|00|01|00|00|00
      ....................<br>
      |df|9e|01|00|d0|02|00|00|40|02|00|00|00|00|00|00|00|00|00|00
      ........@...........<br>
      |00|00|00|00|00|00|00|00|4c|49|53|54|3c|69|00|00|73|74|72|6c
      ........LIST<i..strl<br>
      |73|74|72|68|38|00|00|00|76|69|64|73|78|76|69|64|00|00|00|00
      strh8...vidsxvid....<br>
      |00|00|00|00|00|00|00|00|e8|03|00|00|a8|61|00|00|00|00|00|00
      .............a......<br>
      |81|01|00|00|df|9e|01|00|10|27|00|00|00|00|00|00|00|00|00|00
      .........'..........<br>
      |d0|02|40|02|73|74|72|66|28|00|00|00|28|00|00|00|d0|02|00|00
      ..@.strf(...(.......<br>
      |40|02|00|00|01|00|18|00|58|56|49|44|00|f8|25|00|00|00|00|00
      @.......XVID..%.....<br>
      |00|00|00|00|00|00|00|00|00|00|00|00|73|74|72|64|c0|28|00|00
      ............strd.(..<br>
      |00|00|00|00|bc|02|00|00|90|b2|08|00|2e|5c|76|69|64|65|6f|2e
      .............\video.<br>
      |70|61|73|73|00|00|2e|00|70|00|61|00|73|00|73|00|00|00|00|00
      pass....p.a.s.s.....<br>
      |00|00|00|00|00|00|00|00|00|00|00|00|00|00|00|00|00|00|00|00
      ....................<br>
      |00|00|00|00|00|00|00|00|00|00|00|00|00|00|00|00|00|00|00|00
      ....................<br>
    </font><br>
    In this particular case I know that the video has a frame rate of 25
    frames per second. How can I use this dump to obtain the frame rate?
    Note, it is straightforward to obtain the frame rate for an avi msvc
    (CRAM) video file since the data structure is well documented.
    However, I have yet to find any document that defines the data
    structure for a XviD (AVI) file --- if I had access to such a
    document, I probably would not need help.<font face="Helvetica,
      Arial, sans-serif"><br>
      <br>
      --V</font>
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