Hi, because of a noise in the 1st line of my video, I want to duplicate the 2nd line to the first. I tried this and got an error about invalid horizontal crop value: ffmpeg -i in.vob -vf "split[in1][in2];[in1]crop=in_w:1:0:1[top];[in2]crop=in_w:in_h-1:0:1[main];[top][main] vstack"out_fill-top_.mp4
I guess, the problem is, that the input file is interlaced. So I tried the following: ffmpeg -i in.vob -vf "split[in1][in2];[in1]crop=in_w:2:0:2[top];[in2]crop=in_w:in_h-2:0:2[main];[top][main] vstack"out_fill-top_.mp4 This works, but results in visible artefacts in the first 2 lines. Because the resulting mp4 video is progressive anyway, how could I get what I want (only 1 line should be duplicated)? Thanks -Ulf _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
