diff options
| -rw-r--r-- | include/osmocom/gsm/protocol/gsm_08_08.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/osmocom/gsm/protocol/gsm_08_08.h b/include/osmocom/gsm/protocol/gsm_08_08.h index 9e00d23f..d1653309 100644 --- a/include/osmocom/gsm/protocol/gsm_08_08.h +++ b/include/osmocom/gsm/protocol/gsm_08_08.h @@ -449,6 +449,27 @@ struct gsm0808_speech_codec { uint16_t cfg; }; +/*! \brief Default speech codec configurations: Some codecs specified with + * struct gsm0808_speech_codec, require a configuration (cfg). The following + * default configuration will configure the codec (RTP) to match the + * configuration that is used on the air interface (Um). + * + * Default values for FR_AMR, HR_AMR and OHR_AMR: + * See also: 3GPP TS 28.062, Table 7.11.3.1.3-2: Preferred + * Configurations for the Adaptive Multi-Rate Codec Types + * + * Default values for FR_AMR_WB, OFR_AMR_WB and OHR_AMR_WB: + * See also: 3GPP TS 26.103, Table 5.7-1: Allowed Configurations + * for the Adaptive Multi-Rate - Wideband Codec Types */ +enum gsm0808_speech_codec_defaults { + GSM0808_SC_CFG_DEFAULT_FR_AMR = 0xffff, + GSM0808_SC_CFG_DEFAULT_HR_AMR = 0x073f, + GSM0808_SC_CFG_DEFAULT_OHR_AMR = 0xffff, + GSM0808_SC_CFG_DEFAULT_FR_AMR_WB = 0x01, + GSM0808_SC_CFG_DEFAULT_OFR_AMR_WB = 0x3f, + GSM0808_SC_CFG_DEFAULT_OHR_AMR_WB = 0x01, +}; + /* 3GPP TS 48.008 3.2.2.103 Speech Codec List */ #define SPEECH_CODEC_MAXLEN 255 struct gsm0808_speech_codec_list { |