Carl Eugen Hoyos-2 wrote > Am So., 19. Apr. 2020 um 16:31 Uhr schrieb pdr0 <
> pdr0@ > >: >> >> Carl Eugen Hoyos-2 wrote >> > Am 19.04.2020 um 08:08 schrieb pdr0 > >> >> Other types of typical single rate deinterlacing (such as yadif) will >> >> force you to choose the top or bottom field >> > >> > As already explained: This is not true. >> >> How so? Assuming you're actually applying it (all frames), or deint=1 >> and the frame is marked as interlaced in ffmpeg parlance: >> >> If you use mode=0 (single rate), either it auto selects the parity, or >> you explicitly set it top or bottom > > Yes, but this does not imply (in any way) "choose the top or bottom > field". > I agree - It's a poor choice of words if you take it out of context, and cut out all the background information Already explained > It's a very specific scenario - He needs to keep that combed frame, as a > single frame to retain the pattern. Single rate deinterlacing by any > method > will cause you to choose either the top field or bottom field, resulting > in > a duplicate frame or the prior or next frame - and it's counterproductive > for what he wanted (blend deinterlacing to keep both fields as a single > frame) In his specific situation, he has a single combed frame. What he chooses for yadif (or any deinterlacer) results in a different result - both wrong - for his case. If the selects "top" he gets an "A" duplicate frame. If he selects "bottom" he gets a "B" duplicate frame . Do you need farther explanation? -- Sent from: http://www.ffmpeg-archive.org/ _______________________________________________ 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".
