view include/tmgw_const.h @ 5:e80b0051cd92

libutil: add G.711 decoding tables from themwi-mgw
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 04 Mar 2024 22:25:53 -0800
parents 35c0d9f03c0a
children
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/*
 * This header file defines some constants for themwi-mgw,
 * used in the implementation, in the control interface and
 * throughout the architecture.
 *
 * Some of these constants (specifically those dealing with
 * RTP endpoint types) are now also used in themwi-rtp-mgr
 * and other RTP-touching tools beyond the original themwi-mgw
 * design.
 */

#define	TMGW_EP_TYPE_GSM_ONLY		1
#define	TMGW_EP_TYPE_PSTN_ONLY		2
#define	TMGW_EP_TYPE_GATEWAY		3

/* backward compatibility, from themwi-mgw perspective */
#define	TMGW_EP_TYPE_DUMMY_GSM		TMGW_EP_TYPE_GSM_ONLY
#define	TMGW_EP_TYPE_DUMMY_PSTN		TMGW_EP_TYPE_PSTN_ONLY

#define	TMGW_EP_HAS_GSM_SOCK		1
#define	TMGW_EP_HAS_PSTN_SOCK		2

#define	TMGW_FWD_MODE_INACTIVE		0
#define	TMGW_FWD_MODE_RECVONLY		1
#define	TMGW_FWD_MODE_SENDONLY		2
#define	TMGW_FWD_MODE_SENDRECV		3

#define	TMGW_FWD_ENABLE_PSTN2GSM	1
#define	TMGW_FWD_ENABLE_GSM2PSTN	2

#define	GSM_TCHF_FRAME			0x0300
#define	GSM_TCHF_FRAME_EFR		0x0301
#define	GSM_TCHH_FRAME			0x0302
#define	GSM_TCH_FRAME_AMR		0x0303

#define	PSTN_CODEC_PCMU			0
#define	PSTN_CODEC_PCMA			8