private void fillEmptyRenders() { for (Map.Entry<String, VideoParticipant> e : _users.entrySet()) { VideoParticipant participant = e.getValue(); if (participant.getViewId() == -1) { RenderViewData d = getFreeRender(); if (d != null) { participant.setViewId(d._view_id); LogSdk.i( Utils.getOoVooTag(), "Add free render for " + participant._participantId + " as " + d._view_id); d._video_on = true; d._user = participant.getParticipantId(); ConferenceCore.instance().receiveParticipantVideoOn(participant.getParticipantId()); } else { break; } } } }