diff options
| author | Pablo Neira Ayuso <pablo@gnumonks.org> | 2012-01-24 14:32:37 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2012-02-23 13:44:26 +0100 |
| commit | 72cd95b3527ee45639f0445817781afc3e732f45 (patch) | |
| tree | ae72c9aa167320b8c12cfbc9ab3700d2037f6d1d /include/osmocom/netif/rtp.h | |
| parent | 2b5d3ce7c69e1149bb2af815ab8b8534026063ca (diff) | |
add RTP support
This patch adds the initial RTP support for libosmo-netif, it's based
on Harald's RTP support available in openBSC.
I have also added a couple of example to show how our new channel
infrastructure interacts with the RTP layer.
Signed-off-by: Pablo Neira Ayuso <pablo@gnumonks.org>
Diffstat (limited to 'include/osmocom/netif/rtp.h')
| -rw-r--r-- | include/osmocom/netif/rtp.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/include/osmocom/netif/rtp.h b/include/osmocom/netif/rtp.h new file mode 100644 index 0000000..7a8cc6b --- /dev/null +++ b/include/osmocom/netif/rtp.h @@ -0,0 +1,27 @@ +#ifndef _OSMO_RTP_H_ +#define _OSMO_RTP_H_ + +/* XXX: RFC specifies that MTU should used, add generic function to obtain + existing MTU. */ +#define RTP_MSGB_SIZE 1500 + +struct osmo_rtp_handle *osmo_rtp_handle_create(void *ctx); +void osmo_rtp_handle_free(struct osmo_rtp_handle *h); + +int osmo_rtp_handle_tx_set_sequence(struct osmo_rtp_handle *h, uint16_t seq); +int osmo_rtp_handle_tx_set_ssrc(struct osmo_rtp_handle *h, uint32_t ssrc); +int osmo_rtp_handle_tx_set_timestamp(struct osmo_rtp_handle *h, uint32_t timestamp); + +int osmo_rtp_parse(struct osmo_rtp_handle *h, struct msgb *msg); +struct msgb *osmo_rtp_build(struct osmo_rtp_handle *h, uint8_t payload_type, uint32_t payload_len, const void *data, uint32_t duration); + +/* supported RTP payload types. */ +#define RTP_PT_GSM_FULL 3 +#define RTP_PT_GSM_FULL_PAYLOAD_LEN 33 +#define RTP_PT_GSM_FULL_DURATION 160 /* in samples. */ + +#define RTP_PT_GSM_EFR 97 +#define RTP_PT_GSM_EFR_PAYLOAD_LEN 31 +#define RTP_PT_GSM_EFR_DURATION 160 /* in samples. */ + +#endif |