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| Gunnar G 2004-09-20, 3:55 pm |
| This is probably a futile effort, but I would like to compress a mpeg movie.
For 100 MB of movie, I'm prepared to spend at least 1 hour on compressing
it. Are there any techniques that will benefit from the extra time spent?
bzip2 reduces the size with about 1-3% with the best compression (-9
option), but can't this be tw ed futher, with larger block sizes?
Any ideas or is it futile?
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| Phil Frisbie, Jr. 2004-09-20, 3:55 pm |
| Gunnar G wrote:
> This is probably a futile effort, but I would like to compress a mpeg movie.
> For 100 MB of movie, I'm prepared to spend at least 1 hour on compressing
> it. Are there any techniques that will benefit from the extra time spent?
>
> bzip2 reduces the size with about 1-3% with the best compression (-9
> option), but can't this be twed futher, with larger block sizes?
>
> Any ideas or is it futile?
It is futile to compress an already compressed file like MPEG. The only thing
you can do is to recode the file at a lower quality and/or a smaller frame size.
--
Phil Frisbie, Jr.
Hawk Software
http://www.hawksoft.com
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| Michel Bardiaux 2004-10-04, 8:55 am |
| Phil Frisbie, Jr. wrote:
> Gunnar G wrote:
>
>
>
> It is futile to compress an already compressed file like MPEG. The only
> thing you can do is to recode the file at a lower quality and/or a
> smaller frame size.
>
Or a better codec. For the same quality, MPEG-4 codecs(like DIVX) will
need smaller bitrates than MPEG1 or MPEG2.
--
Michel Bardiaux
Peaktime Belgium S.A. Bd. du Souverain, 191 B-1160 Bruxelles
Tel : +32 2 790.29.41
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