Mark Filipak (ffmpeg) wrote > 'yadif=mode=send_field' is one way to convert fields to frames at the same > frame size and twice the > FR. It does it by repeating fields, but it also adds cosmetics -- it is, > after all, a motion > interpolation filter. > > I seek a fields-to-frames filter that does not add cosmetics. In my > pursuit, I look for such a > filter every time I peruse the filter docs for anything. I've yet to find > such a filter. > > Do you know of a fields-to-frames filter that does not add cosmetics?
Yadif is not a motion interpolation filter Motion interpolation implies resampling new data points in time - such as optical flow (e.g. minterpolate or svpflow) when new "in-between" frames are inserted using motion vectors. In contrast, yadif's interpolation is 1) spatial, not temporal, and 2) Existing fields are not resampled in time when converted to frames. ie. The motion characteristics are the same as the input. eg. 59.94 samples/s interlaced source still has 59.94 same samples/s progressive in the output, not some other retimed number . Or 23.976 samples in 3:2 pulldown, still has 23.976 samples progressive in the output with triplicates and duplicates. It's the same motion characteristics at the same temporal positions - there is no "interpolation" of motion. It sounds like you want a bob filter with simple spatial interpolation, such as line doubling for the spatial interpolation (e.g. nearest neighbor) ? When you have missing scan lines, there is always some "cosmetics" . You can't get something from nothing. Some type of spatial interpolation +/- temporal interpolation (using data from adjacent fields) is always involved to fill in the missing scan lines. Clarify how you want this to be done. Or, did you want field matching with decimation instead ? eg. reconstruct the original progressive frames that were organized in fields with pulldown pattern , and decimating the duplicates. AKA "inverse telecine" ? What kind of "fields to frames" did you want ? -- Sent from: http://ffmpeg-users.933282.n4.nabble.com/ _______________________________________________ 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".