view mgw/int_defs.h @ 95:f280328e7e2e

themwi-mgw: initial implementation of PSTN to GSM forwarding
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 25 Sep 2022 19:17:44 -0800
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children 648a64b2e16b
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/*
 * This header file holds miscellaneous internal definitions for themwi-mgw.
 */

#define	RTP_PACKET_SIZE_PSTN	172
#define	RTP_PACKET_SIZE_GSM_FR	45
#define	RTP_PACKET_SIZE_GSM_EFR	43
#define	RTP_MAX_PAYLOAD		160

struct rtp_packet {
	uint8_t		v_p_x_cc;
	uint8_t		m_pt;
	uint16_t	seq;
	uint32_t	tstamp;
	uint32_t	ssrc;
	uint8_t		payload[RTP_MAX_PAYLOAD];
};

#define	SAMPLES_PER_FRAME	160