diff options
| author | Philipp Maier <pmaier@sysmocom.de> | 2018-09-14 09:13:36 +0200 |
|---|---|---|
| committer | Philipp Maier <pmaier@sysmocom.de> | 2018-09-14 16:24:10 +0200 |
| commit | 2fd4fe6aa109c8df50baac465f0393a303a64dd2 (patch) | |
| tree | be28676b87da9447921c15b56f23597584ef389f /include/osmocom | |
| parent | 4b081b1d8862114f59af433b943dea86ce47ac71 (diff) | |
gsm0808: add function to convert amr gsm0408 setings to gsm0808
Add a function to convert struct gsm48_multi_rate_conf, which holds the
codec settings for AMR, to S0-S15 bit representation as defined in
3GPP TS 48.008 3.2.2.49
Change-Id: I4e656731b16621736c7a2f4e64d9ce63b1064e98
Related: OS#3548
Diffstat (limited to 'include/osmocom')
| -rw-r--r-- | include/osmocom/gsm/gsm0808_utils.h | 1 | ||||
| -rw-r--r-- | include/osmocom/gsm/protocol/gsm_08_08.h | 14 |
2 files changed, 15 insertions, 0 deletions
diff --git a/include/osmocom/gsm/gsm0808_utils.h b/include/osmocom/gsm/gsm0808_utils.h index 242bce94..0a7429e9 100644 --- a/include/osmocom/gsm/gsm0808_utils.h +++ b/include/osmocom/gsm/gsm0808_utils.h @@ -104,6 +104,7 @@ int gsm0808_dec_cell_id(struct gsm0808_cell_id *ci, const uint8_t *elem, uint8_t int gsm0808_chan_type_to_speech_codec(uint8_t perm_spch); int gsm0808_speech_codec_from_chan_type(struct gsm0808_speech_codec *sc, uint8_t perm_spch); +uint16_t gsm0808_sc_cfg_from_gsm48_mr_cfg(struct gsm48_multi_rate_conf *cfg, bool fr); /*! Return 3GPP TS 48.008 3.2.2.49 Current Channel Type 1 from enum gsm_chan_t. */ static inline uint8_t gsm0808_current_channel_type_1(enum gsm_chan_t type) diff --git a/include/osmocom/gsm/protocol/gsm_08_08.h b/include/osmocom/gsm/protocol/gsm_08_08.h index 94338178..8431ace5 100644 --- a/include/osmocom/gsm/protocol/gsm_08_08.h +++ b/include/osmocom/gsm/protocol/gsm_08_08.h @@ -503,6 +503,20 @@ enum gsm0808_speech_codec_defaults { GSM0808_SC_CFG_DEFAULT_OHR_AMR_WB = 0x01, }; +/*! Default speech codec configurations broken down by reate. + * See also: 3GPP TS 28.062, Table 7.11.3.1.3-2: Preferred Configurations for + * the Adaptive Multi-Rate Codec Types. */ +enum gsm0808_speech_codec_rate_defaults { + GSM0808_SC_CFG_DEFAULT_AMR_4_75 = 0xff03, + GSM0808_SC_CFG_DEFAULT_AMR_5_15 = 0x0000, + GSM0808_SC_CFG_DEFAULT_AMR_5_90 = 0xff06, + GSM0808_SC_CFG_DEFAULT_AMR_6_70 = 0x3e08, + GSM0808_SC_CFG_DEFAULT_AMR_7_40 = 0x0c12, + GSM0808_SC_CFG_DEFAULT_AMR_7_95 = 0xc020, + GSM0808_SC_CFG_DEFAULT_AMR_10_2 = 0x3040, + GSM0808_SC_CFG_DEFAULT_AMR_12_2 = 0xc082 +}; + /* 3GPP TS 48.008 3.2.2.103 Speech Codec List */ #define SPEECH_CODEC_MAXLEN 255 struct gsm0808_speech_codec_list { |