From f9778b2a26ce06959ee7e188eb1d533d896f1846 Mon Sep 17 00:00:00 2001 From: Max Date: Wed, 28 Dec 2016 12:43:09 +0100 Subject: DTX AMR HR: fix inhibition * Unlike in AMR FR, in AMR HR incoming ONSET have to be treated differently depending on whether we've recently sent SID UPDATE or EMPTY frame. Split ST_SID_U FSM state into 2 states to accommodate for that and make sure that additional states specific to AMR HR are not used for AMR FR. * Avoid sending E_VOICE and E_SID_U in corresponding states as those do not initiate FSM state transitions anyway. This decrease extra load from FSM signalling which otherwise would be triggered on per-frame basis. * Introduce separate signal for SID First P1 -> P2 transition to avoid confusion with E_COMPL and E_SID_U initiated transitions from P1 state. * Don't init DTX FSM for SDCCH channels. Change-Id: I229ba39a38a223fada4881fc9aca35d3639371f8 Related: OS#1801 --- include/osmo-bts/msg_utils.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/osmo-bts/msg_utils.h') diff --git a/include/osmo-bts/msg_utils.h b/include/osmo-bts/msg_utils.h index 55e8475d..7ddbe88f 100644 --- a/include/osmo-bts/msg_utils.h +++ b/include/osmo-bts/msg_utils.h @@ -37,6 +37,7 @@ bool dtx_dl_amr_enabled(const struct gsm_lchan *lchan); void dtx_dispatch(struct gsm_lchan *lchan, enum dtx_dl_amr_fsm_events e); bool dtx_recursion(const struct gsm_lchan *lchan); void dtx_int_signal(struct gsm_lchan *lchan); +bool dtx_is_first_p1(const struct gsm_lchan *lchan); void dtx_cache_payload(struct gsm_lchan *lchan, const uint8_t *l1_payload, size_t length, uint32_t fn, int update); int dtx_dl_amr_fsm_step(struct gsm_lchan *lchan, const uint8_t *rtp_pl, -- cgit v1.2.3