I guess it depends if you think that it is better to align with
defacto behaviour (and maybe clarify/correct the specifications) or
follow the specs and have users grumble about not matching the
behaviour of 'applications X, Y and Z', I'm pretty certain Photoshop
won't easily change its behaviour.
2018-12-10 17:55 GMT+01:00, Kevin Wheatley :
> I came across a similar discussion here:
>
> https://github.com/OpenImageIO/oiio/pull/1412
So the solution is:
We don't fix it because it is broken elsewhere?
Carl Eugen
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I came across a similar discussion here:
https://github.com/OpenImageIO/oiio/pull/1412
Kevin
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Moritz Barsnick (2018-12-10):
> That was my interpretation. It's a density, if units != 0, otherwise
> the aspect ratio. (Would a density not correspond to the SAR? I.e. not
> make sense with square pixels?)
I did not follow the beginning of the discussion, but just in case it
can help and was not
On Mon, Dec 10, 2018 at 13:19:57 +0100, Carl Eugen Hoyos wrote:
> > units (1 byte) Units for the X and Y densities.
> > units = 0: no units, X and Y specify the pixel aspect ratio
> > units = 1: X and Y are dots per inch
> > units = 2: X and Y are dots per cm
> > Xdensity (2 bytes)
2018-12-10 9:29 GMT+01:00, Moritz Barsnick :
> On Mon, Dec 10, 2018 at 02:54:54 +0100, Carl Eugen Hoyos wrote:
>> I hope somebody can prove me wrong!
>
> Not sure, see below.
>
>> This would need a slightly more sophisticated update to the decoder.
>
> Because it is also presumed incorrect?
>
>>
On Mon, Dec 10, 2018 at 12:33:52PM +0100, Michael Niedermayer wrote:
> On Mon, Dec 10, 2018 at 02:54:54AM +0100, Carl Eugen Hoyos wrote:
> > Hi!
> >
> > Reading the specification and Wikipedia, it appears to me that FFmpeg
> > is writing wrong values as aspect ratio for jfif files.
> > I hope some
On Mon, Dec 10, 2018 at 02:54:54AM +0100, Carl Eugen Hoyos wrote:
> Hi!
>
> Reading the specification and Wikipedia, it appears to me that FFmpeg
> is writing wrong values as aspect ratio for jfif files.
> I hope somebody can prove me wrong!
>
> This would need a slightly more sophisticated updat
On Mon, Dec 10, 2018 at 02:54:54 +0100, Carl Eugen Hoyos wrote:
> I hope somebody can prove me wrong!
Not sure, see below.
> This would need a slightly more sophisticated update to the decoder.
Because it is also presumed incorrect?
> put_bits(p, 16, 0x0102);
> put_bits(p, 8,
Hi!
Reading the specification and Wikipedia, it appears to me that FFmpeg
is writing wrong values as aspect ratio for jfif files.
I hope somebody can prove me wrong!
This would need a slightly more sophisticated update to the decoder.
Please comment, Carl Eugen
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