[Ffmpeg-devel] about ff_check_alignment()

Diego Biurrun diego
Sun Feb 11 14:32:18 CET 2007


On Sun, Feb 11, 2007 at 02:01:18PM +0100, Michael Niedermayer wrote:
> 
> On Sun, Feb 11, 2007 at 12:28:49PM +0000, Mario Rossi wrote:
> > 
> > I have the same warning (about stack not aligned), but only when
> > running xine (1.1.4).
> > I'm compiling everything with GCC 4.1.1 (shipped with Fedora Core 5).
> > 
> > Xine contains a copy of ffmpeg which is compiled within xine compilation.
> > What I've found, is that xine passes this switch to the compiler
> > 
> > -mpreferred-stack-boundary=2
> > 
> > when compiling ffmpeg.
> > 
> > On a small test with a standalone ff_check_alignment(), this switch is
> > enough to cause the test to fail. The default is =4 (i.e. 16 bytes).
> > 
> > Should I write to xine mailing list?
> 
> yes, it would be interresting why they mess with the default ...

Well, there are xine developers listening here..  Mike, why?

Diego





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