-tov/--transparentvideoovervideo: invalid <lambda> value:

Hi, I tried multiple way to get a -tv working an example video to work with a background and it always throws the error in the title.

For instance, backgroundremover -i "./stress.mp4" -tov "vert.mp4" -o "output.mp4" results in: backgroundremover: error: argument -tov/--transparentvideoovervideo: invalid <lambda> value: 'vert.mp4'

Weirdly enough backgroundremover -i "./stress.mp4" -tov -o "output.mp4" “works” … but there’s no overlay video input so I get: /<stdin>: No such file or directory Process finished

Any idea?

[celikmustafa89]

The following command generates a video that scale-up the video for the background image. It may help in some cases. At least work for me. I spent some time writing this command, just want to share it to save your time if you need it.

ffmpeg -i test_fightclub.mp4 -i fight_matte_image.mov -i green.png -filter_complex '[1][0]scale2ref[mask][main];[main][mask]alphamerge[vid];[vid][2:v]scale2ref[fg][bg];[bg][fg]overlay[out]' -map [out] fight_image_complete_scale2ref.mp4

my output was like this:

now I can generate following output with the code:

[nadermx]

I had this open on superuser as I had gotten stuck. I’ll fix the ‘-tov’ ffmpeg command and close this issue.