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authorPhilipp Maier <pmaier@sysmocom.de>2018-03-22 17:26:46 +0100
committerHarald Welte <laforge@gnumonks.org>2018-03-23 11:59:29 +0000
commit7e27b14ef29da0d8f834d8aba03551c34341ba90 (patch)
treeaf8d7f237d9b09011071f91a21c9309f9bd4a50c /include/osmocom/gsm/protocol
parent04a2a3231f8c300e27e0d8309acef081ed58d80f (diff)
gsm_08_08: correct speech codec defaults
The speech codec defaults are not correct. The defaults recommended in 3GPP TS 28.062, Table 7.11.3.1.3-2 are limited by 3GPP TS 48.008, Section 3.2.2.103. Some defaults are actually reserved for future use. Also the endianess of the 16 bit values is reversed. - correct values so that they match the specification - transmit bytes in the correct endianess Change-Id: I6c3a34d39a375d71c4128fd38f06629e8b98b100
Diffstat (limited to 'include/osmocom/gsm/protocol')
-rw-r--r--include/osmocom/gsm/protocol/gsm_08_08.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/include/osmocom/gsm/protocol/gsm_08_08.h b/include/osmocom/gsm/protocol/gsm_08_08.h
index 947f90f2..4539b960 100644
--- a/include/osmocom/gsm/protocol/gsm_08_08.h
+++ b/include/osmocom/gsm/protocol/gsm_08_08.h
@@ -460,16 +460,16 @@ struct gsm0808_speech_codec {
* 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
+ * See also: 3GPP TS 28.062, Table 7.11.3.1.3-2: Preferred Configurations for
+ * the Adaptive Multi-Rate Codec Types and 3GPP TS 48.008, Section 3.2.2.103.
*
* 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_FR_AMR = 0x57ff,
GSM0808_SC_CFG_DEFAULT_HR_AMR = 0x073f,
- GSM0808_SC_CFG_DEFAULT_OHR_AMR = 0xffff,
+ GSM0808_SC_CFG_DEFAULT_OHR_AMR = 0x57ff,
GSM0808_SC_CFG_DEFAULT_FR_AMR_WB = 0x01,
GSM0808_SC_CFG_DEFAULT_OFR_AMR_WB = 0x3f,
GSM0808_SC_CFG_DEFAULT_OHR_AMR_WB = 0x01,