On Thu, Jan 28, 2021 at 7:04 AM Mark Filipak (ffmpeg) <markfili...@bog.us> wrote:
> On 01/27/2021 05:47 PM, Carl Eugen Hoyos wrote: > > Am Mi., 27. Jan. 2021 um 02:03 Uhr schrieb Mark Filipak (ffmpeg) > > <markfili...@bog.us>: > > > >> ffmpeg -i SOURCE -map 0 -filter_complex "split[1][2], \ > >> [1]telecine=pattern=55, select=not(eq(mod(n\,5)\,2))[3], \ > >> > [2]minterpolate=fps=60000/1001:mi_mode=mci=mc_mode=obmc:scd=fdiff:scd_threshold=10, > \ > >> select=eq(mod(n\,5)\,2)[4], \ > >> [3][4]interleave" \ > >> -codec:v libx265 -x265-params "crf=16:qcomp=0.60" -codec:a copy > -codec:s copy TARGET > > > > Since others may read this: > > The command line makes little sense, you should either use > > telecine or minterpolate. > > Carl Eugen, you surprise me. I'm sure you see what I'm trying to do, so > why the angst? > > First, let me admit that since I started this thread (following weeks of > experimentation) I decided > to simply try this: 'minterpolate=fps=60000/1001' to see what it would do. > I was amazed. > > If minterpolate is Paul's work, then Paul is a f'ing genius. > > I've since spent a couple of days playing with minterpolate and have found > that this: > > 'minterpolate=fps=60000/1001:mi_mode=mci:mc_mode=obmc:scd=fdiff:scd_threshold=10:vsbmc=1:search_param=20' > is astounding. > > Nonetheless, I'd still like to generate a 60 FPS transcode that is > visually equivalent (as closely > as possible) to 24 pictures/second by replacing the combed frame (i.e. > n%5==2) by an interpolated > frame -- hence the filter graph you loathe. > > For that n%5==2 frame, here's what I sought (and did not find): > > Sobel of line y: ______/\_____________/\_________ > Sobel of line y+1: __________/\_____________/\_____ > Desired output: > line y: ________/\_____________/\_______ > line y+1: ________/\_____________/\_______ > I could find this: > line y: ______/\_____________/\_________ > line y+1: ______/\_____________/\_________ (aligned to top line) > and I could find this: > line y: __________/\_____________/\_____ (aligned to bottom > line) > line y+1: __________/\_____________/\_____ > but I could not find this: > line y: ________/\_____________/\_______ (aligned to mean) > line y+1: ________/\_____________/\_______ (aligned to mean) > > Please cite reference/paper that explains this technique in more detail. > One reason I might -- MIGHT -- prefer telecine55 is that the original > frames are recoverable from > the transcodes -- but admittedly, that's not much of a reason, is it? > Another reason is that the > transcode is much, much quicker than 'minterpolate=fps=60000/1001' and > somewhat smaller. > > There you have it, Carl Eugen. Please stop trying to make the world think > I'm feeble minded. :-) > Okay? > > Regards, > Mark. > > -- > Someone's sneaking in and turning up the range so that my food burns. > I'm sure of it. > And the older I get, the more sure of it I become. > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".