Video & audio - ComfyTV

Video editing (ComfyTV / Video)

Feed a video (from a Generate → Video stage or a Load Video node) into any of these:

Stage	What it does	Status
Video Clip	Trim to a start/end range.	✅ PyAV
Video Crop	Crop to a rectangular region.	✅ PyAV
Video Resize	Change resolution (width / height) preserving frame rate.	✅ PyAV
Video Extract Frame	Pull a single still (first / last / at time). The result is a `COMFYTV_IMAGE`.	✅ PyAV
↪ Extend (toolbar action)	One-click chain — extract the source’s last frame, spawn a new Video Stage, wire that frame as the I2V starting image.	✅
Video Upscale	Frame-by-frame upscale.	⏳ pending
Subtitle Erase (Smart)	Auto-detect and remove burned-in subtitles.	⏳ pending
Subtitle Erase (Region)	Remove subtitles inside a region you box.	⏳ pending

Audio (ComfyTV / Audio)

Take a video or audio track and split it:

Stage	Output	Status
Demux · Audio Track	The audio extracted from a video.	✅ PyAV
Demux · Silent Video	The video with its audio stripped.	✅ PyAV
Audio · Vocals Only	Demucs voice-separated track.	⏳ pending
Audio · Background Only	Demucs instrumental / ambient track.	⏳ pending

The demux pair is meant to be used together — one node for the audio, one for the silent video — both wired from the same source clip. The 🔀 Demux toolbar action spawns both at once. A separated / extracted audio track can be wired into a Video Stage’s optional audio input for audio-driven video (works with LTX 2.3 IA2V).

​Video editing (ComfyTV / Video)

​Audio (ComfyTV / Audio)

Video editing (ComfyTV / Video)

Audio (ComfyTV / Audio)