video compression

Discussion in 'Other video questions' started by Oopsla, Oct 11, 2003.

  1. Oopsla

    Oopsla Guest

    When you compress video in say VirtualDub you have a number of choices. Which ones retain the most data? or are the least lossy? Are there and lossless compressions? Until my final cut I'd like to retain as much "data" as possible. It seems so hit and miss. Anybody know a good FAQ about this topic?
     
  2. powerdup

    powerdup Regular member

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    There's no such thing as lossless compression Im afraid. :)

    Well if youre talking about compressing video into an mpeg-4 stream, the best candidates that retain the most data would be the divx and xvid codecs.

    What kind of encoding are you doing by the way?

    I know a couple of guides which can be found here:

    http://www.doom9.org

    Good Luck.
     
  3. Praetor

    Praetor Moderator Staff Member

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    True, with video data playing at 23/29 fps odds are that a small blotch of RGB(122,116,219) being transcoded to, say RGB(128,118,220) wont be noticed and if it is noticed, it wont pose much of a quality problem. I would reccommend you try out the XviD codecs because they offer a higher bitrate for the same filesize when compared to DivX.
     

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