Hi Adrian,
Thanks!

I believe the atom exists and so I'll check out dumpster.

Thanks,
R
 On May 2, 2012 12:59 PM, "Adrian Baltowski" <[email protected]>
wrote:

> Hi
>
>  The question is: has your quicktime file the 'pasp' atom but it contains
> wrong values OR your file doesn't has any aspect ratio atoms ('pasp' or
> 'tapt') at all?
> There is small OSX application called Dumpster to inspect and edit
> quicktime file's structure. But Dumpster can't add or remove atoms- you can
> only edit some existing one. So if you file contains aspect ratio atoms you
> can simply edit them.
>
> There is no a simple way to manipulate quicktime files via Python but....
> In 32-bit OSX Python builds there are Carbon modules which- among others-
> contains python bindings to Quicktime framework. With them you can
> manipulate quicktime files almost the same way like with sdk, but of course
> you need to know the Quicktime framework a little bit.
>
> Best
> Adrian
>
> W dniu 2012-05-02 06:53:44 użytkownik Ron Ganbar <[email protected]>
> napisał:
>
> I opened in Quicktime Pro, but there is no mention of pixel aspect ratio
> anywhere.
> I seem to remember that on this list someone took care of the gamma
> problem in H264 files by using Python code to remove an atom. Maybe
> something similar can be done for pixel aspect ratio?
>
>
> Ron Ganbar
> email: [email protected]
> tel: +44 (0)7968 007 309 [UK]
>      +972 (0)54 255 9765 [Israel]
> url: http://ronganbar.wordpress.com/
>
>
>
> On 2 May 2012 05:54, Diogo Girondi <[email protected]> wrote:
>
>>  Have you tried to open the file in QuickTime Pro and check if there is
>> some "atom" that you can change there to change this?
>>
>> On 01/05/2012, at 16:07, Ron Ganbar <[email protected]> wrote:
>>
>>
>>
>>  Hi all,
>> This is really a Quicktime question - but the answer might lie in the
>> wonderful Python capabilities of Nuke, so it's worth a shot.
>>
>> I have a Quicktime file that has a wrong pixel aspect ratio. I just want
>> to set the PAR to something else without having to re-render the file. Any
>> idea if this is possible?
>>
>>
>> Ron Ganbar
>> email: [email protected]
>> tel: +44 (0)7968 007 309 [UK]
>>      +972 (0)54 255 9765 [Israel]
>> url: http://ronganbar.wordpress.com/
>>
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