Hi I am trying to use the expression editor node to take an existing video, change the expression for each frame of the video and then save the resulting video. I created the following workflow but it doesn’t work. It just seems to take a single frame from the input video and the output is a one-frame video. Any ideas what is wrong?
Expression Editor (PHM) is mainly for generating expression/motion data, and it doesn’t properly process a video frame batch.
To apply an expression to the entire video, connect the video frames to Advanced Live Portrait (PHM) and also connect the Expression Editor output to it. Then use the command to control when each expression is applied. If you want the same expression on every frame, this is enough:
1 = 1:0
(1 frame to transition, then it stays for the rest of the video.)
If it helps, I wrote a short guide here:
https://comfyui.nomadoor.net/en/basic-workflows/liveportrait/
That was very helpful thanks!