I'm sorry, are you saying that rv doesn't tell you the aspect ratio? Or are you 
saying that OIIO (e.g. "oiiotool -info -v nonsquare.jpg") doesn't tell you the 
aspect ratio?



On Jan 28, 2015, at 4:42 PM, ran sariel <[email protected]> wrote:

> The build works fine so do the tests (for oiiotool at least).
> 
> looking at the resulting image from the conversion (in RV or nuke.)
> I can see the exif/software info in RV
> openImageIO 1.6.0dev: oiiotool in.exr --ch R,G,B --resize 50% --attrib 
> PixelAspectRatio 2.0 -o nonsquare.jpg
> But the PixelAspect is not seen by RV.
> 
> oddly with or without passing the PixelAspectRation attrib I get the same 
> metaData on the jpeg i get
> XResolution as 72/1
> YResolution as 144/1
> 
> but no PixelAspectRatio written.
> 
> hence my assumption that I'm working with the wrong branch...
> 
> 
> Ran
> 
> 
> 
> 
> 
> On 01/28/2015 03:41 PM, Larry Gritz wrote:
>> I don't know what you mean. The patch I merged definitely had code changes 
>> as well as tests. It should all be in the current master.
>> 
>>      -- lg
>> 
>> 
>> On Jan 27, 2015, at 9:43 AM, ran sariel<[email protected]>  wrote:
>> 
>>> Hi
>>> 
>>> I downloaded and rebuilt master. seems that the changes are not in the main 
>>> /src folder but in testsuite.
>>> not sure if I'm building oiio correctly (the build instructions do not 
>>> mention testsuite at all)
>>> Am I missing the correct branch? or should I apply the changes locally from 
>>> the testsuite files to  the /src folder
>>> 
>>> 
>>> Cheers
>>> Ran
>>> 
>>> 
>>> On 01/26/2015 11:20 AM, Larry Gritz wrote:
>>>> FYI, I have merged this fix into master.
>>>> 
>>>> Since we're trying to push out a stable 1.5 release (today, ideally!), I 
>>>> didn't want to mess with that branch. Let's test this change in master for 
>>>> a while, and then if there is demand for a back-port, we can consider 
>>>> making the change in 1.5 as well.
>>>> 
>>>>    -- lg
>>>> 
>>>> 
>>>> On Jan 23, 2015, at 5:53 PM, ran sariel<[email protected]>   wrote:
>>>> 
>>>>> Thank you Larry, that's great news.
>>>>> ( I actually tried to set the --attrib for pixelAspectRatio, but it 
>>>>> wasn't recognized by RV so I was assuming I got it wrong..)
>>>>> 
>>>>> Cheers
>>>>> Ran
>>>>> 
>>>>> On 01/23/2015 04:08 PM, Larry Gritz wrote:
>>>>>> OK, I did some digging, and it's a bit of a good news / bad news 
>>>>>> situation.
>>>>>> 
>>>>>> Bad news: JPEG doesn't directly store the pixel aspect ratio in its 
>>>>>> metadata.
>>>>>> 
>>>>>> Good news: JPEG does store "density" (dots per inch or cm in x and y), 
>>>>>> and so the pixel aspect ratio is implied to be ydensity/xdensity.
>>>>>> 
>>>>>> Bad news: our JPEG reader (and writer) didn't handle xdensity and 
>>>>>> ydensity properly. (This is supposed to correspond to the standard OIIO 
>>>>>> metadata called "XResolution" and "YResolution", which are confusing 
>>>>>> names, but they are simply inherited from TIFF nomenclature.)
>>>>>> 
>>>>>> Good news: I have a pull request 
>>>>>> (https://github.com/OpenImageIO/oiio/pull/1042) that fixes it, and also 
>>>>>> tightens up the way we handle the mutual interactions of XResolution, 
>>>>>> YResolution, and PixelAspectRatio.
>>>>>> 
>>>>>> Once this PR is approved and merged, you'll be able to set the implied 
>>>>>> pixel aspect ratio of a JPEG file like this:
>>>>>> 
>>>>>>  oiiotool input.jpg -attrib "PixelAspectRatio" 1.1 -o nonsquare.jpg
>>>>>> 
>>>>>> 
>>>>>> On Jan 22, 2015, at 9:46 AM, ran sariel<[email protected]>    
>>>>>> wrote:
>>>>>> 
>>>>>>> just change the metadata
>>>>>>> 
>>>>>>> On 01/22/2015 12:30 AM, Larry Gritz wrote:
>>>>>>>> aspect ratio
>>>>>>> -- 
>>>>>>> Ran Sariel
>>>>>>> CTO / Pipeline supervisor
>>>>>>> The Embassy VFX Inc.
>>>>>>> 177 West 7th Ave, 4th Floor
>>>>>>> Vancouver, BC
>>>>>>> Phone: (604) 696-6862 ext. 244
>>>>>>> 
>>>>>>> [email protected]
>>>>>>> 
>>>>>> --
>>>>>> Larry Gritz
>>>>>> [email protected]
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> _______________________________________________
>>>>>> Oiio-dev mailing list
>>>>>> [email protected]
>>>>>> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org
>>>>> -- 
>>>>> Ran Sariel
>>>>> CTO / Pipeline supervisor
>>>>> The Embassy VFX Inc.
>>>>> 177 West 7th Ave, 4th Floor
>>>>> Vancouver, BC
>>>>> Phone: (604) 696-6862 ext. 244
>>>>> 
>>>>> [email protected]
>>>>> 
>>>>> _______________________________________________
>>>>> Oiio-dev mailing list
>>>>> [email protected]
>>>>> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org
>>>> --
>>>> Larry Gritz
>>>> [email protected]
>>>> 
>>>> 
>>>> 
>>>> _______________________________________________
>>>> Oiio-dev mailing list
>>>> [email protected]
>>>> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org
>>> -- 
>>> Ran Sariel
>>> CTO / Pipeline supervisor
>>> The Embassy VFX Inc.
>>> 177 West 7th Ave, 4th Floor
>>> Vancouver, BC
>>> Phone: (604) 696-6862 ext. 244
>>> 
>>> [email protected]
>>> 
>>> _______________________________________________
>>> Oiio-dev mailing list
>>> [email protected]
>>> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org
>> --
>> Larry Gritz
>> [email protected]
>> 
>> 
>> 
>> _______________________________________________
>> Oiio-dev mailing list
>> [email protected]
>> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org
> 
> -- 
> Ran Sariel
> CTO / Pipeline supervisor
> The Embassy VFX Inc.
> 177 West 7th Ave, 4th Floor
> Vancouver, BC
> Phone: (604) 696-6862 ext. 244
> 
> [email protected]
> 
> _______________________________________________
> Oiio-dev mailing list
> [email protected]
> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org

--
Larry Gritz
[email protected]



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