Re: [FFmpeg-devel] [PATCH] DSD and DST speed improvements

2019-08-01 Thread David Bryant
On 7/31/19 11:49 PM, Paul B Mahol wrote: > Hi, > > patches attached. > > This time DSD decoding is approx %50 faster on old Celeron N3050 CPUs and 2 > threads. I see about 42% speedup on Core Duo E8400 (36x to 52x) for a 5-channel file. On the same file encoded in DST, the improvement almost disa

Re: [FFmpeg-devel] [PATCH] DSD and DST speed improvements

2019-08-01 Thread Carl Eugen Hoyos
Am Do., 1. Aug. 2019 um 08:55 Uhr schrieb Paul B Mahol : > patches attached. > > This time DSD decoding is approx %50 faster on old Celeron N3050 CPUs and 2 > threads. As written on irc: On both Intel and ppc, I see worse performance for threads=2 and threads =6 than threads=1 with this patch (wi