On Sun, Nov 15, 2020 at 2:00 PM adam smith via ffmpeg-user < [email protected]> wrote: >> 25fps vs 50fps difference is there but not so great as I expected. > You might find that ffmpeg is duplicating each deinterlaced frame to > output 50fps from the 25fps source.
Most of the footage was interlaced and the .mp4 output had unique frames. There were a only a few scenes where the camcorder's shutter speed was slower than 1/25s so those parts were progressive i.e. no comb lines in original .dv files and there were duplicate frames in the .mp4 output. I also tried to disable all motion smoothing options off in the television while evaluating the quality. I also compared two windows on a computer monitor. yadif and bwdif were set to output one frame for each field. I found bwdif somewhat better than yadif which leaves some minor "ripple" artifacts to the movie. BTW, I guess I could skip scaling and set the output .mp4 pixel aspect ratio the same as in the input PAL .dv 128/117 but I prefer to convert to square pixels. - Matti _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
