diff options
| author | Mychaela N. Falconia <falcon@freecalypso.org> | 2024-05-22 00:40:22 +0000 |
|---|---|---|
| committer | falconia <falcon@freecalypso.org> | 2024-05-31 13:53:21 +0000 |
| commit | d8ac06847819fb35c2d15b68a4ae2bcec20c4bfe (patch) | |
| tree | cda599faf1daac1d1ad0d5f4b7668fc0e6ba31d6 | |
| parent | a636b8d2adb4cfeaf5ebae80c5dc2cfd55486b84 (diff) | |
include/osmocom/gsm: add rtp_extensions.h
Previous patches add definitions of GSM0808_IE_THEMWI_RTP_EXTENSIONS
and RSL_IE_OSMO_RTP_EXTENSIONS to BSSMAP and RSL; this new header file
provides definitions for individual bits in the single value octet
of the new IE.
Related: OS#6448
Change-Id: I0eccfe5ddcf44f8f20440acb01e2d4870ec0cd91
| -rw-r--r-- | include/osmocom/gsm/Makefile.am | 1 | ||||
| -rw-r--r-- | include/osmocom/gsm/rtp_extensions.h | 23 |
2 files changed, 24 insertions, 0 deletions
diff --git a/include/osmocom/gsm/Makefile.am b/include/osmocom/gsm/Makefile.am index 5678a51e..e42ffeca 100644 --- a/include/osmocom/gsm/Makefile.am +++ b/include/osmocom/gsm/Makefile.am @@ -50,6 +50,7 @@ osmogsm_HEADERS = \ oap_client.h \ rlp.h \ rsl.h \ + rtp_extensions.h \ rxlev_stat.h \ sysinfo.h \ tlv.h \ diff --git a/include/osmocom/gsm/rtp_extensions.h b/include/osmocom/gsm/rtp_extensions.h new file mode 100644 index 00000000..edea4316 --- /dev/null +++ b/include/osmocom/gsm/rtp_extensions.h @@ -0,0 +1,23 @@ +/* + * Themyscira Wireless Technical Specification TW-TS-003 defines a BSSMAP + * extension whereby a CN implementation and a BSS implementation can + * negotiate the use of non-3GPP-standard extensions to RTP user plane, + * extensions that modify RTP formats counter to the stipulations of + * 3GPP TS 48.103. There is also a private Osmocom-defined IE in Abis RSL + * that communicates the same RTP extensions from OsmoBSC to OsmoBTS. + * + * This header file defines the meaning of the bits in the first (and currently + * only) value octet of the TLV IE added to BSSMAP and RSL interfaces, + * namely, GSM0808_IE_THEMWI_RTP_EXTENSIONS and RSL_IE_OSMO_RTP_EXTENSIONS. + * It is based on this authoritative definition: + * + * https://www.freecalypso.org/specs/tw-ts-003-v010002.txt + * + * Section 5.3 in the above specification defines the assignment of + * individual bits in the single value octet. + */ + +#pragma once + +#define OSMO_RTP_EXT_TWTS001 0x01 +#define OSMO_RTP_EXT_TWTS002 0x02 |