On Mon, 2016-01-11 at 14:58 -0800, Khem Raj wrote: > it came into ffmpeg circa 2008 and proliferated into related components > primarily to support vectorization and neon > which was quite nascent for ARM architecture in those days in gcc. Today if > you were to configure libav with default options > then it uses mainly -fomit-frame-pointer-O3 -fno-math-errno -fno-signed-zeros > -fno-tree-vectorize > > which is primarily -Ofast -fno-tree-vectorize
I think -fno-tree-vectorize is just there as a workaround for old compilers. It sounds like you're saying that ffmpeg basically just wants "-Ofast", and by implication it wants this on all architectures. So in that case there is no need for a FULL_OPTIMIZATION override on arm, let alone armv7a specifically. Whether ffmpeg ought to be forcing its own FULL_OPTIMIZATION at all versus leaving it up to the distro is another question. Personally I think that individual recipes have no business setting those variables, and ffmpeg is no exception, but I don't have a particularly strong opinion either way. p. -- _______________________________________________ Openembedded-core mailing list Openembedded-core@lists.openembedded.org http://lists.openembedded.org/mailman/listinfo/openembedded-core
