Am Tue, 4 Mar 2014 11:10:25 -0300 schrieb Felipe Sateler <fsate...@debian.org>:
> #decoder t_s16/s t_f32/s > ARM 86.26 90.66 > generic 102.80 100.06 > generic_dither 121.10 100.84 Yes, a difference, but aguably a lot less than comparing VPU code to NEON. With the feature to produce float output from all decoders, it is your (debian's) option to prefer decoding speed by building a libmpg123 with arm_nofpu and use it on armhf machines without NEON via the library loading mechanism. Or you decide for offering "proper" floating point output that needs some 25-50 % more CPU time. I am even more interested in a comparison with the runtime of madplay in that configuration. Perhaps its fixed-point math with 24 bit output is still faster than using the VFP with mpg123. Of course, I'd be interested to know if that's not the case (mpg123 rulez!;-). But if it is, it wouldn't totally surprise me. Alrighty then, Thomas PS: You still have to decide for --enable-int-quality or not, for a smaller impact on CPU time and basically one bit of precision.
signature.asc
Description: PGP signature
