[M] Change in osmo-bts[master]: Transmit invalid AMR speech blocks instead of dummy FACCH

Attention is currently required from: falconia, jolly. fixeria has posted comments on this change. ( https://gerrit.osmocom.org/c/osmo-bts/+/35132?usp=email ) Change subject: Transmit invalid AMR speech blocks instead of dummy FACCH ...................................................................... Patch Set 1: (5 comments) File src/osmo-bts-trx/sched_lchan_tchf.c: https://gerrit.osmocom.org/c/osmo-bts/+/35132/comment/28b4f113_24e5f2f4 PS1, Line 550: FIXME: someone who knows AMR needs to look at this problem : * and decide what is the correct BTS Tx behavior for frame : * gaps in TCH/AFS. See OS#6049. This block can now be removed? https://gerrit.osmocom.org/c/osmo-bts/+/35132/comment/a3bd575a_53d5a890 PS1, Line 571: goto send_burst Similarly to how it's done below for `gsm0503_tch_fr_encode()`, let's check the returned value. Old version of `gsm0503_tch_afs_encode()` preceding your libosmocore patch (I82ce2adf995a4b42d1f378c5819f88d773b9104a) would return -1 and leave the burst buffer unpopulated. In this case we should fall-back to generating dummy FACCH. File src/osmo-bts-trx/sched_lchan_tchh.c: https://gerrit.osmocom.org/c/osmo-bts/+/35132/comment/97317e92_2e7d5d18 PS1, Line 453: TCH/HS Mention TCH/AHS here? Or add a separate bullet point, like you did in `tx_tchf_fn()`? https://gerrit.osmocom.org/c/osmo-bts/+/35132/comment/0c4be259_75680d62 PS1, Line 462: FIXME: someone who knows AMR needs to look at this problem : * and decide what is the correct BTS Tx behavior for frame : * gaps in TCH/AHS. See OS#6049. Likewise, can be removed. https://gerrit.osmocom.org/c/osmo-bts/+/35132/comment/f91355a8_c1dcc480 PS1, Line 474: gsm0503_tch_ahs_encode Same here, we need to check returned value. -- To view, visit https://gerrit.osmocom.org/c/osmo-bts/+/35132?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-bts Gerrit-Branch: master Gerrit-Change-Id: I056f379715c91ad968f198e112d363a9009dc1c3 Gerrit-Change-Number: 35132 Gerrit-PatchSet: 1 Gerrit-Owner: jolly <andreas(a)eversberg.eu> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: falconia <falcon(a)freecalypso.org> Gerrit-CC: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Attention: jolly <andreas(a)eversberg.eu> Gerrit-Attention: falconia <falcon(a)freecalypso.org> Gerrit-Comment-Date: Fri, 24 Nov 2023 20:25:24 +0000 Gerrit-HasComments: Yes Gerrit-Has-Labels: No Gerrit-MessageType: comment