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Rubing Chiu
Guest
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 Posted:
Fri Sep 24, 2004 6:32 am Post subject:
How to get expected file size? |
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Given a IWMProfile and the file duration, how to get the
expected file size?
- Rubing
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Neil Smith [MVP Digital M
Guest
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| Posted:
Fri Sep 24, 2004 5:47 pm Post subject:
Re: How to get expected file size? |
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I'm sure that's not possible - it would depend on the exact
compression which could be achieved at runtime, and that would depend
on the content!
EG - high motion, lots of scene changes would create a bigger file
than a talking head video ;-)
Cheers - Neil
On Thu, 23 Sep 2004 19:32:42 -0700, "Rubing Chiu"
<anonymous@discussions.microsoft.com> wrote:
| Quote: | Given a IWMProfile and the file duration, how to get the
expected file size?
- Rubing |
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Iain
Guest
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| Posted:
Fri Sep 24, 2004 7:12 pm Post subject:
Re: How to get expected file size? |
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On Fri, 24 Sep 2004 13:47:42 GMT, Neil Smith [MVP Digital Media] wrote:
| Quote: | Given a IWMProfile and the file duration, how to get the
expected file size?
- Rubing
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If you have a constant bit rate then it's easy it's (bit rate * seconds) /
8.
As Neil says, if you have a variable bit rate it depends. usually there is
a maximum and a minumum bit rate specified (or am I thinking MPEG here) in
which case you can deterime the maximum and minimum sizes.
Iain
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Neil Smith [MVP Digital M
Guest
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| Posted:
Fri Sep 24, 2004 10:01 pm Post subject:
Re: How to get expected file size? |
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On Fri, 24 Sep 2004 16:12:27 +0100, Iain <IainXXX@idcl.co.uk> wrote:
| Quote: | On Fri, 24 Sep 2004 13:47:42 GMT, Neil Smith [MVP Digital Media] wrote:
Given a IWMProfile and the file duration, how to get the
expected file size?
- Rubing
If you have a constant bit rate then it's easy it's (bit rate * seconds) /
8.
As Neil says, if you have a variable bit rate it depends.
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Yes that's what I meant to say - cheers ;-))
| Quote: | usually there is
a maximum and a minumum bit rate specified (or am I thinking MPEG here) in
which case you can deterime the maximum and minimum sizes.
Iain |
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