Yes I spent quite a lot of time to search the QT mailing list without
results... The only thing I saw is 'Adding and retrieving data to and
from frames'
<http://lists.apple.com/archives/quicktime-api/2003/Jul/msg00229.html>
which tell to create a custom media handler.
Please point me to the right thread if you can find it.
Thanks for helping me, regards.
On Mon, 2006-09-04 at 23:41 +0300, George Birbilis wrote:
> > > My problem is that I need to store additional data per-sample. My
> > > first attempt was to use image description extensions to store them
> > > (one extension per-image-description) but I quickly noticed
> > that the
> > > image descriptions given in BeginBand() are always the same
> > (only the
> > > dataSize is changing). So I wrote and
> > IsImageDescriptionEquivalent()
> > > function for my codec which returns always false (since my
> > extension
> > > is always
> > > different) but then, there is one codec instance created for each
> > > frame!
>
> Search the list archive on this, there was a discussion on storing per-frame
> custom data sometime ago, with Tim Monroe replying with the way to do it I
> think. Let me know if you can't find it to search my mail archives...
>
> ----------------
> George Birbilis (email@hidden)
> Microsoft MVP J# for 2004-2006
> Borland "Spirit of Delphi"
> * QuickTime, QTVR, ActiveX, .NET, Delphi VCL, XML, IPC
> http://www.kagi.com/birbilis
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