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2 comments:

• File src/libmsc/codec_mapping.c:

  • Patch Set #1, Line 8: * SPDX-License-Identifier: GPL-2.0+

    AGPL-3. […]

    Done

  • Patch Set #1, Line 29: FIXME: I'm not sure about OFR, OHR -- O means octet-aligned??

    in any case, just to be clear: OFR/OHR are not supported in our stack so far.

    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.

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