Attention is currently required from: fixeria.

falconia uploaded patch set #2 to this change.

View Change

ECU in UL path: move it from trx model to l1sap

With this change the application of ECU in the uplink path becomes
consistent across all OsmoBTS models, enabled or disabled per vty
config setting "rtp internal-uplink-ecu".  An additional behavioral
change from the previous trx-model-only implementation is that ECU
insertion is now done after the link quality check in l1sap, thereby
fixing the bug where this quality check would sometimes suppress
ECU output and replace it with BFI markers in RTP.

In the new implementation when the internal ECU is enabled and
available for the selected codec (currently FRv1 only), the RTP output
will gap (standard representation of BFI in RTP) only during DTXu
pauses as indicated by a received SID frame (either valid or invalid),
and the SID frame that triggers the switch from ECU mode into pause
mode is reliably emitted in RTP.

Related: OS#6040
Depends: I3857be84bba12aaca0c2cca91458b7e13c5a642a (libosmocore)
Change-Id: Iac577975c9ab50cb8ebbc035c661c1880e7cecec
---
M src/common/l1sap.c
M src/osmo-bts-trx/sched_lchan_tchf.c
M src/osmo-bts-trx/sched_lchan_tchh.c
3 files changed, 79 insertions(+), 69 deletions(-)

git pull ssh://gerrit.osmocom.org:29418/osmo-bts refs/changes/71/33471/2

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