[Freeswitch-users] mod_conference video_no_video_avatar_png flag with video-mode passthrough

Hello, In mod_conference, is it possible to use the video_no_video_avatar_png flag with video-mode passthrough? I can’t get it working but that could indicate that either (a) its not possible or (b) I’ve done something wrong. What I’m trying to achieve is: in a conference with both audio/video and audio only members the video stream follows the active speaker. However, if one of the audio only participants is speaking then a placeholder image is transmitted to the audio/video members instead. Obviously, I’d prefer to reduce the amount of transcoding/canvas manipulation on the server hence the use of the passthrough video-mode. If there any better ways of achieving this then please let me know! Many thanks for reading this, Richard