I want to add a watermark to the video stream of a successful call transmission in FreeSWITCH and record the video stream with the watermark. Is this achievable?

[zhangaijing]

I want to add a watermark to the video stream of a successful call transmission in FreeSWITCH and record the video stream with the watermark. Is this achievable?

[seven1240]

what means call transmission? maybe you can do with mod_conference, or mod_video_filter