From d7df7ae39276e825af2a1b7ac82eb74b42ec7775 Mon Sep 17 00:00:00 2001
From: Max <msuraev@sysmocom.de>
Date: Fri, 3 Jun 2016 12:06:26 +0200
Subject: Store last used FN for TCH

It's necessary to properly compute timestamp compensation for RTP
packets in case of DTX (or heavy packet loss).

Related: OS#22
Change-Id: Ib42c6a8614a4b73333a83181488dd4069cac14d7
---
 openbsc/include/openbsc/gsm_data_shared.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/openbsc/include/openbsc/gsm_data_shared.h b/openbsc/include/openbsc/gsm_data_shared.h
index c3d5978a9..c7516c675 100644
--- a/openbsc/include/openbsc/gsm_data_shared.h
+++ b/openbsc/include/openbsc/gsm_data_shared.h
@@ -291,6 +291,7 @@ struct gsm_lchan {
 			uint8_t len;
 		} last_sid;
 		uint8_t last_cmr;
+		uint32_t last_fn;
 	} tch;
 	/* BTS-side ciphering state (rx only, bi-directional, ...) */
 	uint8_t ciph_state;
-- 
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