This is interesting, and it's good to see something that's actively developed, but it seems to have some of the same issues as ffmpeg-python:

- It doesn't appear to have any way of specifying filters that do not have inputs, such as "color"

- There is no way to provide flags to Popen, e.g. to specify subprocess.CREATE_NO_WINDOW to avoid CMD windows popping up in a GUI app on Windows. This isn't a big deal for running ffmpeg itself, because you can just ffmpeg.compile() then run it manually, but that can't be done for ffprobe with ffmpeg.probe().

Edit: OK, figured out the source filter thing, ffmpeg.sources.color. Is there a way to use arbitrary source filters, like vfilter/afilter can do for regular ones?