diff options
| author | Neels Hofmeyr <nhofmeyr@sysmocom.de> | 2022-09-07 02:26:47 +0200 |
|---|---|---|
| committer | neels <nhofmeyr@sysmocom.de> | 2023-02-28 23:00:45 +0000 |
| commit | 593d20d637312dbae152aa28618a62cfe396ac67 (patch) | |
| tree | ceb42bd09a7889307fac3fe5dabbdd8befac35d8 /include/osmocom/gsm | |
| parent | 64277a021735aaeec510b4cf47858c6c6884c066 (diff) | |
add gsm0808_amr_modes_from_cfg
Provide the definitions from 3GPP TS 28.062, Table 7.11.3.1.3-2 as
generally usable API.
Likely users:
- upcoming patch to improve conversion between S0-S15 and MultiRate
config, I900fda192742fa8f6dd54e9131ef1704b14cc41a
- osmo-msc to figure out conversion between SDP AMR mode-set and 3GPP TS
48.008 Permitted Speech S0-S15.
- osmo-bsc to choose AMR modes for channel activation from cfg /
permitted speech from MSC.
Related: SYS#5066
Change-Id: Icef7dd626d3d4641c66b8dd87e2047fc0ab547d1
Diffstat (limited to 'include/osmocom/gsm')
| -rw-r--r-- | include/osmocom/gsm/protocol/gsm_08_08.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/include/osmocom/gsm/protocol/gsm_08_08.h b/include/osmocom/gsm/protocol/gsm_08_08.h index 5060915b..88ac610d 100644 --- a/include/osmocom/gsm/protocol/gsm_08_08.h +++ b/include/osmocom/gsm/protocol/gsm_08_08.h @@ -687,6 +687,29 @@ enum gsm0808_speech_codec_rate { GSM0808_SC_CFG_AMR_12_2 = 0x0080, }; +/* Bit index of a mode as returned by gsm0808_amr_modes_from_cfg[]. + * Example: + * if (gsm0808_amr_modes_from_cfg[full_rate ? 1 : 0][9] & GSM0808_AMR_MODE_4_75) + * printf("S9 supports 4k75"); + */ +enum gsm0808_amr_mode { + GSM0808_AMR_MODE_4_75 = 0, + GSM0808_AMR_MODE_5_15, + GSM0808_AMR_MODE_5_90, + GSM0808_AMR_MODE_6_70, + GSM0808_AMR_MODE_7_40, + GSM0808_AMR_MODE_7_95, + GSM0808_AMR_MODE_10_2, + GSM0808_AMR_MODE_12_2, +}; +extern const struct value_string gsm0808_amr_mode_names[]; +static inline const char *gsm0808_amr_mode_name(enum gsm0808_amr_mode val) +{ + return get_value_string(gsm0808_amr_mode_names, val); +} + +extern const uint8_t gsm0808_amr_modes_from_cfg[2][16]; + /* 3GPP TS 48.008 3.2.2.103 Speech Codec List */ #define SPEECH_CODEC_MAXLEN 255 struct gsm0808_speech_codec_list { |