On Wed, Apr 27, 2016 at 2:52 PM, Alexandra Hájková <[email protected]> wrote: > On Wed, Apr 27, 2016 at 1:41 PM, Hendrik Leppkes <[email protected]> wrote: >> On Wed, Apr 27, 2016 at 1:35 PM, Alexandra Hájková >> <[email protected]> wrote: >>> * it is faster for some decoders (no speed loss when not faster) >> >> The bitstream reader is an critical piece for performance, so when >> doing such claims, please back them up with actual numbers on >> important codecs. >> >> - Hendrik > > benchmarked with perf stat , 64bit CPU > > HEVC - no speed loss > H264 - no speed loss > OPUS - 0.7 % speed up > AAC - 2.6 % speed up > DCA - 0.5 % speed up
HEVC and H264 (mostly) use CABAC for the important bitstream reading, which does not use the old reader, and presumably not the new one either. Testing a high-bitrate video codec that does actually use it may be beneficial - prores, dnxhd, or any other codec with really high bitrates. - Hendrik _______________________________________________ libav-devel mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-devel
