I am using ffmpeg, trying to convert 1080p to 1080i. I know that
-vf tinterlace should do that, but I don't know the exact syntax of use. Currently I'm trying this:
ffmpeg -i <input file.mp4> -c:v libx264 -c:a aac -vf tinterlace <output.mp4>
When I check the generated output in a video analyzer tool like Mediainfo, I see that it's still progressive. I know there must be some mistake in the command. I need both top fields first and bottom field first formats of interlacing to be applied to 1080p source video content.