[L] Change in osmo-msc[master]: add codec_mapping.h,c

Attention is currently required from: laforge, fixeria. neels has posted comments on this change. ( https://gerrit.osmocom.org/c/osmo-msc/+/30114 ) Change subject: add codec_mapping.h,c ...................................................................... Patch Set 4: (2 comments) File src/libmsc/codec_mapping.c: https://gerrit.osmocom.org/c/osmo-msc/+/30114/comment/d7d9f3bd_1e78e937 PS1, Line 8: * SPDX-License-Identifier: GPL-2.0+ Done https://gerrit.osmocom.org/c/osmo-msc/+/30114/comment/ecafb3bd_3a147881 PS1, Line 29: FIXME: I'm not sure about OFR, OHR -- O means octet-aligned?? just noting some half knowledge i came across; Related: 3GPP TS 26.103 Mention in 3GPP TS 48.058 9.3.6 Channel Mode and 3GPP TS 48.008 3.2.2.11 Channel Type I wasn't aware yet of this relation: GSM speech full rate version 1: GSM FR. GSM speech full rate version 2: GSM EFR. GSM speech full rate version 3: FR AMR. GSM speech full rate version 4: OFR AMR-WB. GSM speech full rate version 5: FR AMR-WB. GSM speech half rate version 1: GSM HR. GSM speech half rate version 2: not defined in this version of the protocol. GSM speech half rate version 3: HR AMR. GSM speech half rate version 4: OHR AMR-WB. GSM speech half rate version 6: OHR AMR. interesting how "half rate version 5" is skipped without a mention. -- To view, visit https://gerrit.osmocom.org/c/osmo-msc/+/30114 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-msc Gerrit-Branch: master Gerrit-Change-Id: Iaa307be6a8487aa8d4ba7cd59d5c5ef04818a744 Gerrit-Change-Number: 30114 Gerrit-PatchSet: 4 Gerrit-Owner: neels <nhofmeyr(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: laforge <laforge(a)osmocom.org> Gerrit-Reviewer: pespin <pespin(a)sysmocom.de> Gerrit-CC: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Attention: laforge <laforge(a)osmocom.org> Gerrit-Attention: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Comment-Date: Tue, 07 Mar 2023 04:42:32 +0000 Gerrit-HasComments: Yes Gerrit-Has-Labels: No Comment-In-Reply-To: laforge <laforge(a)osmocom.org> Comment-In-Reply-To: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-MessageType: comment