Hello everyone, I'm trying to use the PJSUA API with the Java bindings for an Android application to establish a video conference, based on the code from the following ticket: https://trac.pjsip.org/repos/ticket/2181 (Note: I' running this code in the callback onCallMediaEvent, when the event is PJMEDIA_EVENT_FMT_CHANGED, to avoid the issues caused by this other ticket https://trac.pjsip.org/repos/ticket/2245 which was brought up in this mailing list a couple of months ago. I've tried using the code in that changeset and the issue persists so I went back to release 2.9) AudioMedia oneAudio = callOne.getAudioMedia(-1); VideoMedia oneVideoDec = callOne.getDecodingVideoMedia(-1); AudioMedia twoAudio = callTwo.getAudioMedia(-1); VideoMedia twoVideoEnc = callTwo.getEncodingVideoMedia(-1); // Transmit audio in both directions oneAudio.startTransmit(twoAudio); oneAudio.startTransmit(twoAudio); // Send internal video to external call oneVideoDec.startTransmit(twoVideoEnc, new VideoMediaTransmitParam()); Now, the current device using PJSIP doesn't have a video device itself, so I'm just interested in transmitting it's audio, the problem is that the callTwo doesn't just receive the video from One, it also receives a colorbar pattern which occupies half the screen. I've tried disabling the colorbar device by using the PJMEDIA_VIDEO_DEV_HAS_CBAR_SRC compile time flag, but then getEncodingVideoMedia fails mentioning that there is no media available. I've tried different combinations of: callTwo.vidSetStream(pjsua_call_vid_strm_op.PJSUA_CALL_VID_STRM_ADD, new CallVidSetStreamParam()); and: VideoMediaVector vids = endpoint.mediaEnumVidPorts(); long vidsSize = vids.size(); for (int i = 0; i < vidsSize; i++) { VideoMedia vid = vids.get(i); VidConfPortInfo info = vid.getPortInfo(); if (info.getName().toLowerCase().contains("colorbar")) { vid.stopTransmit(twoVideoEnc); } } But they don't seem to work, so I'm not sure if I'm making the correct changes or if I'm not making them at the correct time. Can anyone help me with this issue? Thanks for your help! Regards, Daniel