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Date: Tue, 24 Jan 1995 17:34:19 -0800 (PST)
From: Adam Rybicki <arybicki@netcom.com>
Subject: Re: Integrating TIFF extension 
To: Sam Leffler <sam@flake.asd.sgi.com>
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On Tue, 24 Jan 1995, Sam Leffler wrote:

>     2. YCbCr files cannot be read by scanlines, but reading by strips works
>        as expected.  However, in libtiff there is no way to specify which
>        particular sample to load if PlanarConfiguration is 2.  Or is there?
>        Tile-based YCbCr files should work, but I have no files in that format.
> 
> If PlanarConfig is 2 (separate planes) then individual samples
> are in different strips/tiles; to get a particular sample you
> read the appropriate strip/tile.
>     
>     Sam

Sure, this sounds obvious.  However, when I want to load a tile, I 
specify which tile _and_which_sample_ of that tile to load via 
TIFFReadTile().  TIFFReadStrip(), however, does not accept the sample 
number as one of its parameters.

So, how do I indicate to libtiff which strip sample to load?  Or does it 
simply concatenate the samples?

Adam Rybicki                         | SimSoft
arybicki@netcom.com                  | Windows/Win32, C/C++ consulting



