private void handleRtpPacket(RawPacket pkt) { if (pkt != null && pkt.getPayloadType() == vp8PayloadType) { int ssrc = pkt.getSSRC(); if (!activeVideoSsrcs.contains(ssrc & 0xffffffffL)) { synchronized (activeVideoSsrcs) { if (!activeVideoSsrcs.contains(ssrc & 0xffffffffL)) { activeVideoSsrcs.add(ssrc & 0xffffffffL); rtcpFeedbackSender.sendFIR(ssrc); } } } } }