falconia has uploaded this change for review. (
https://gerrit.osmocom.org/c/osmo-bts/+/32096 )
Change subject: sysmo: fix handling of SID in EFR
......................................................................
sysmo: fix handling of SID in EFR
Handling of SID in EFR mode was broken in osmo-bts-sysmo.
l1_to_rtppayload_efr(), the function for UL Rx, was using completely
bogus logic (passing bits in ETSI TS 101 318 EFR format to an AMR
decoding function), whereas l1if_tch_encode(), the function for
DL Tx, had missing SID logic for EFR while supporting SID detection
for all other codecs. The fix is to use the new osmo_efr_check_sid()
function in libosmocodec.
Change-Id: Ia56c1bb7432968685110456961d24a907b0a201f
---
M src/osmo-bts-sysmo/tch.c
1 file changed, 23 insertions(+), 7 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-bts refs/changes/96/32096/1
diff --git a/src/osmo-bts-sysmo/tch.c b/src/osmo-bts-sysmo/tch.c
index a390c8c..8c9557c 100644
--- a/src/osmo-bts-sysmo/tch.c
+++ b/src/osmo-bts-sysmo/tch.c
@@ -131,12 +131,8 @@
cur[0] |= 0xC0;
#endif /* USE_L1_RTP_MODE */
- enum osmo_amr_type ft;
- enum osmo_amr_quality bfi;
- uint8_t cmr;
- int8_t sti, cmi;
- osmo_amr_rtp_dec(l1_payload, payload_len, &cmr, &cmi, &ft, &bfi, &sti);
- lchan_set_marker(ft == AMR_GSM_EFR_SID, lchan);
+
+ lchan_set_marker(osmo_efr_check_sid(l1_payload, payload_len), lchan);
return msg;
}
@@ -403,7 +399,10 @@
*payload_type = GsmL1_TchPlType_Efr;
rc = rtppayload_to_l1_efr(l1_payload, rtp_pl,
rtp_pl_len);
- /* FIXME: detect and save EFR SID */
+ if (rc && lchan->ts->trx->bts->dtxd)
+ is_sid = osmo_efr_check_sid(rtp_pl, rtp_pl_len);
+ if (is_sid)
+ dtx_cache_payload(lchan, rtp_pl, rtp_pl_len, fn, -1);
break;
#endif
case GSM48_CMODE_SPEECH_AMR:
--
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Gerrit-Project: osmo-bts
Gerrit-Branch: master
Gerrit-Change-Id: Ia56c1bb7432968685110456961d24a907b0a201f
Gerrit-Change-Number: 32096
Gerrit-PatchSet: 1
Gerrit-Owner: falconia <[email protected]>
Gerrit-MessageType: newchange
