fixeria has uploaded this change for review. ( https://gerrit.osmocom.org/c/libosmocore/+/33911 )

Change subject: gsm_08_08: add missing GSM0808_SCT_EXT ......................................................................

gsm_08_08: add missing GSM0808_SCT_EXT

As per 3GPP TS 48.008, section 3.2.2.103, the "Codec Type" field may contain either a certain 3GPP Speech Codec Type directly (4 bit value), or the so called "Codec Extension" = 0xFh, in which case the real Codec Type follows in the next octet as "Extended Codec Type".

CSD is such an example, the encoding is defined as follows:

8 7 6 5 4 3 2 1 +----+----+----+----+-------------------+ | -- | PI | PT | -- | 0xFh | +----+----+----+----+-------------------+ | Extended Codec Type (CSData) | +----+----+-----------------------------+ | R2 | R3 | | +----+----+-----------------------------+

CSData is coded with 0xFDh or '1111 1101' (0xfd).

We already have GSM0808_SCT_CSD, add the missing GSM0808_SCT_EXT.

Change-Id: Iafaa25070684d2ba400c75fa33e803651a5ce857 Related: OS#6110, OS#4393, OS#4394 --- M include/osmocom/gsm/protocol/gsm_08_08.h 1 file changed, 32 insertions(+), 0 deletions(-)

git pull ssh://gerrit.osmocom.org:29418/libosmocore refs/changes/11/33911/1

diff --git a/include/osmocom/gsm/protocol/gsm_08_08.h b/include/osmocom/gsm/protocol/gsm_08_08.h index 967e4fe..05cfa26 100644 --- a/include/osmocom/gsm/protocol/gsm_08_08.h +++ b/include/osmocom/gsm/protocol/gsm_08_08.h @@ -554,6 +554,8 @@ GSM0808_SCT_HR3 = 0x4, /*!< HR_AMR */ GSM0808_SCT_HR4 = 0xd, /*!< OHR AMR-WB */ GSM0808_SCT_HR6 = 0xb, /*!< OHR AMR */ + GSM0808_SCT_HR6 = 0xb, /*!< OHR AMR */ + GSM0808_SCT_EXT = 0xf, /*!< Codec Extension (the real Codec Type follows) */ GSM0808_SCT_CSD = 0xfd, /*!< CSData (see also TS 26.103) */ };