Re: compressing compressed video
- From: "Jim Leonard" <MobyGamer@xxxxxxxxx>
- Date: 18 Aug 2005 10:02:55 -0700
copx wrote:
> Is it possible to noticeably compress already compressed video (DivX/MPEG)
> even futher using a loseless compression program?
Yes, but not by much if at all. The most lossless compression I have
seen of an .AVI occured because the PCM audio was uncompressed. The
only .AVIs you'll see major compression occur is when there is so much
redundant information in a frame or series of frames that the AVI CODEC
output itself contains redundancies. For example, take a 20-second
stretch of pure black video, encode it to .AVI using any codec you
want, then compress further with ZIP or something. Most likely, it
will compress further.
> Which programs offer the
> highest compression radios in this case?
Depends on the source material. Try a few.
.
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- From: copx
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