On Tue, Jan 23, 2018 at 2:45 PM, Luke Kenneth Casson Leighton <[email protected]> wrote:
> > do you happen to know if the building blocks - the key high-cpu-load > parts - of HEVC (aka H.265) _happen_ to be the same or near-identical > to MPEG or H.264 and so on? > I don't know. But youtube is pushing vp9 and it's successor av1 now. These are royalty free, while the situation with h.265 is a bit unclear to me in regards to what products need royalties or not. One thing I do know is that h.265 uses blocks of 64x64 pixels for compression vs 16x16 of h.264. > also critical will be a YUV->RGB converter plus scaler... and oh > look! https://opencores.org/project,video_stream_scaler > > if anyone remembers the National Semi Geode LX800 (bought by AMD), > that, staggeringly, could actually do 720p video displayed on > 1600x1200 (with a bit of a tear at times), and could easily do > 1280x720 (without tearing) @ 30fps.... *ENTIRELY IN SOFTWARE*... > because it had a YUV->RGB converter hard macro that took care of the > most expensive bit. > > ... and that was a 500mhz 486 with DDR2 RAM! absolutely incredible. > That sounds impressive indeed. > so, anyway, yes: each little piece of the puzzle will be needed, > saving big chunks of CPU cycles. _______________________________________________ arm-netbook mailing list [email protected] http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook Send large attachments to [email protected]
