[FFmpeg-devel] [PATCH] h264 luma interpolation 8x8 for altivec

Guillaume POIRIER poirierg
Sat Aug 25 18:27:36 CEST 2007


On 8/12/07, Guillaume POIRIER <poirierg at gmail.com> wrote:

> IMHO, it would be a good idea to add a code to allow an easy test of
> these alignment thingies in case we need to do some debug.
> I'd like to add smth like this
> #define ASSERT_ALIGNED(ptr) assert(!((unsigned long)ptr&0x0000000F));
> #else ASSERT_ALIGNED(ptr) 0;
> #endif
> and add ASSERT_ALIGNED() wherever we were handling unaligned memory accesses.
> That way, if for some reason a user experiences corruptions, we can
> advise him to test for alignment by defining DEBUG_ALIGNMENT.
> So, what do you guys think?

Like in attached patch...

Does this look reasonable?

A soldier will fight long and hard for a bit of colored ribbon.
 -- Napoleon Bonaparte
-------------- next part --------------
A non-text attachment was scrubbed...
Name: part2_h264_altivec_align.2.diff
Type: application/octet-stream
Size: 5021 bytes
Desc: not available
URL: <http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/attachments/20070825/e6dbd8e2/attachment.obj>

More information about the ffmpeg-devel mailing list