2013/4/10 Justin Ruggles <[email protected]>: > On 04/09/2013 06:57 PM, Christophe Gisquet wrote: >> No vector tests it. > > Do any of the ISO reference vectors test it? It seems almost pointless > to optimize a function that is literally never used.
Mans once mentioned he did test it, but wasn't able to provide the sample. fate doesn't test it. I optimized it before noticing it wasn't used. All I know is it should run when "ac->oc[1].m4ac.ext_sample_rate < sbr->sample_rate" (and it seems to be halved). But to find what property exactly it is, and then match it against official vectors: ftp://ftp.iis.fhg.de/mpeg4audio-conformance/ is a long run. >> + mova m0, [srcq + 0] >> + mova m1, [srcq + 16] >> + shufps m0, m1, q3131 >> + shufps m1, m1, q2020 > > is pshufd with memory arg any faster here? Well, I couldn't test it. Probably I should move it towards HEAD of my branch so as to not export it when running format-patch. -- Christophe _______________________________________________ libav-devel mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-devel
