On Sat, Jul 17, 2021 at 1:50 PM Nicolas George <geo...@nsup.org> wrote:
> Nuno Santos (12021-07-17): > > I’m using libav to mux a video file at full hd. > > > > At some point I need to convert the original frame at 1920x1080 RGB to > YUV420P > > > > This requires sws_scale to be called. On desktop it takes around 7/8 ms > to convert a frame. On iOS it takes 28 ms. > > > > I guess sws_scale is not optimised for iOS. How is people doing it on > iOS then? > > I do not think that sws_scale requires OS-specific optimizations. > This is not correct at all. libswscale have some neon assembly. Dunno how user compiles libraries, or maybe neon asm is very old. > > What are the CPUs of your desktop and mobile devices? > > Regards, > > -- > Nicolas George > _______________________________________________ > Libav-user mailing list > Libav-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/libav-user > > To unsubscribe, visit link above, or email > libav-user-requ...@ffmpeg.org with subject "unsubscribe". >
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