[Ffmpeg-devel] maintainers list (original) (raw)

Guillaume POIRIER poirierg
Tue Feb 7 13:27:52 CET 2006

Hi,

On 2/7/06, Diego Biurrun wrote:

On Tue, Feb 07, 2006 at 03:25:08AM +0100, Alexander Strasser wrote:

[..]

Also I changed the platform to consist > of os/arch pairs (only one entry as example).

I have doubts about the os/arch pair, there is not much sense in making distinctions too fine-grained there IMO. The assembler code is the same after all.

Except that the Altivec optimizations are mostly intrinsics, therefore final code generation is still left to the compiler. In theory, GCC should do the same job on all platforms that it supports, however it's not the case: Apple's GCC (the one shipped on OSX) is notoriously better a generating good code from the intrinsics, and FSF's GCC (the one on all other plateforms, like Linux or BSD) is notoriously "inferior" in that area (some ppl may even say "broken"), which explains why some Altivec optimisation have been working on OSX only.

Blame it on whoever you want (Apple for not contributing back to FSF's GCC or FSF not integrating Apple's patches), it's a sad situation.

In any case, that explains why IMHO for PPC it's justified to tell which platform are maintained (NB: if I'm not mistaken, even Amiga uses PPC, and I doubt any maintainer can pretend that they can maintain that platform).

Guillaume

Just because code is syntactically "valid" GNU C doesn't mean GCC can always compile it. Steven Bosscher - 2005-01-01 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11203#c14

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