On 11/17/17, Ben Hutchinson <benh...@gmail.com> wrote: > I would like to be able to deinterlace a video by converting full-height > frames into half-height fields (where each frame of the output represents > one field of the input) at double the frame rate. The way this would work > is it would take the top field (or bottom field) first and export it as the > first frame in the output file, and then take the next field of the input > and output it as the second frame in the output file. Then it moves on to > the first field of the second input frame, and outputs this as the 3rd > frame of the output. And this continues until the output file has twice as > many frames as the input, at half the height of the input, and runs at > twice the frame rate as the input. > For example: > Input Frame1 Field1 ----> Output Frame1 > Input Frame1 Field2 ----> Output Frame2 > Input Frame2 Field1 ----> Output Frame3 > Input Frame2 Field2 ----> Output Frame4 > > > I would also like to be able to do the reverse of this, take a video file > who's frames represent fields, and then interlace them so that they > actually are fields within frames in the output video, and at the same time > cut the frame rate in half. > For example: > Input Frame1 ----> Output Frame1 Field1 > Input Frame2 ----> Output Frame1 Field2 > Input Frame3 ----> Output Frame2 Field1 > Input Frame4 ----> Output Frame2 Field2
Already done via separatefields and weave filters. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
