fix vid regression

src/switch_rtp.c

@@ -4230,8 +4230,11 @@ static int rtp_common_write(switch_rtp_t *rtp_session,
 		(rtp_session->last_write_ts == RTP_TS_RESET || (rtp_session->ts <= rtp_session->last_write_ts && rtp_session->last_write_ts > 0))) {
 		switch_rtp_set_ssrc(rtp_session, (uint32_t) ((intptr_t) rtp_session + (uint32_t) switch_epoch_time_now(NULL)));
 	}
-	
-	send_msg->header.m = (m && !(rtp_session->rtp_bugs & RTP_BUG_NEVER_SEND_MARKER)) ? 1 : 0;
+
+	if (!switch_rtp_test_flag(rtp_session, SWITCH_RTP_FLAG_VIDEO) && !switch_rtp_test_flag(rtp_session, SWITCH_RTP_FLAG_UDPTL)) {
+		send_msg->header.m = (m && !(rtp_session->rtp_bugs & RTP_BUG_NEVER_SEND_MARKER)) ? 1 : 0;
+	}
+
 	send_msg->header.ssrc = htonl(rtp_session->ssrc);
 
 	if (switch_test_flag(rtp_session, SWITCH_RTP_FLAG_GOOGLEHACK) && rtp_session->send_msg.header.pt == 97) {