Re: CFD: eXIf 2017-06-09b

On Fri, Jun 9, 2017 at 3:15 PM, Phil Harvey <phil-CIeU6mJ2MbMd166Dz3SrqbDks+cytr/[email protected]> wrote:
> Hi Glenn,
>
>> From: Glenn Randers-Pehrson <[email protected]>
>>
>> The Exif spec calls it a "JPEG APP1 Marker Segment" (not a "JPEG Exif Segment").
>
> (Note that I suggested "JPEG APP1 Exif segment", not "JPEG Exif Segment".)
>
> But yes, you are correct that the Exif spec does often use "marker segment", but in at least one case they call it an "APP1 segment" (without "marker").  Technically, "APP1 marker segment" would be translated as "the application segment identifed by the APP1 marker", but this is more commonly just called the "APP1 segment" today.
>
> There are of course other APP1 segments not mentioned in the Exif specification, so I think it would be useful to be specific and state it is the "Exif".  This also hints to the fact that the segment must contain the Exif00 header (because this is what distinguishes it from other APP1 segments).
>
> I'm just explaining my reasoning, and not trying to be argumentative.  I'm quite OK if you leave it the way it was.

In fact I ended up writing in the 06-10 CFD:

"...can fit into a JPEG APP1 marker (Exif) segment."

Glenn

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