abs-send-time support

[unitree-czk]

The kvs example do not provide a accurate bandwidth estimation algorithm.
I tried to use google-remb by commenting out
else if (STRCMP(pSessionDescription->mediaDescriptions[i].sdpAttributes[j].attributeName, "extmap") == 0 && STRSTR(pSessionDescription->mediaDescriptions[i].sdpAttributes[j].attributeValue, TWCC_EXT_URL) != NULL) { pKvsPeerConnection->twccExtId = parseExtId(pSessionDescription->mediaDescriptions[i].sdpAttributes[j].attributeValue); } in PeerConnection.c
However, the maximum bandwidth received is far from accurate.
I did some research and noticed that abs-send-time required by remb is missing.
Is it possible for kvs to send this missing information so that one can let browser to do the bandwidth estimation job properly.

Thanks alot!!!