RTP_Session *
rtsp_media_create_rtp_session(RTSP_media *medium, const GstSDPMedia *m)
{
RTP_Session *rtp_s = NULL;
g_assert(medium != NULL);
/* We are in rtsp-watch func, medium->rtsp_s must be referenced and !killed */
rtp_s = rtp_session_create(medium, m);
if (rtp_s)
{
medium->rtp_sessions = g_list_append(medium->rtp_sessions, rtp_s);
rtp_session_attach_loop(rtp_s);
}
return rtp_s;
}
/**
* Probes and initializes.
*/
static int Open (vlc_object_t *obj)
{
demux_t *demux = (demux_t *)obj;
int tp; /* transport protocol */
if (!strcmp (demux->psz_access, "dccp"))
tp = IPPROTO_DCCP;
else
if (!strcmp (demux->psz_access, "rtptcp"))
tp = IPPROTO_TCP;
else
if (!strcmp (demux->psz_access, "rtp"))
tp = IPPROTO_UDP;
else
if (!strcmp (demux->psz_access, "udplite"))
tp = IPPROTO_UDPLITE;
else
return VLC_EGENERIC;
char *tmp = strdup (demux->psz_location);
if (tmp == NULL)
return VLC_ENOMEM;
char *shost;
char *dhost = strchr (tmp, '@');
if (dhost != NULL)
{
*(dhost++) = '\0';
shost = tmp;
}
else
{
dhost = tmp;
shost = NULL;
}
/* Parses the port numbers */
int sport = 0, dport = 0;
if (shost != NULL)
sport = extract_port (&shost);
if (dhost != NULL)
dport = extract_port (&dhost);
if (dport == 0)
dport = 5004; /* avt-profile-1 port */
int rtcp_dport = var_CreateGetInteger (obj, "rtcp-port");
/* Try to connect */
int fd = -1, rtcp_fd = -1;
switch (tp)
{
case IPPROTO_UDP:
case IPPROTO_UDPLITE:
fd = net_OpenDgram (obj, dhost, dport, shost, sport, tp);
if (fd == -1)
break;
if (rtcp_dport > 0) /* XXX: source port is unknown */
rtcp_fd = net_OpenDgram (obj, dhost, rtcp_dport, shost, 0, tp);
break;
case IPPROTO_DCCP:
#ifndef SOCK_DCCP /* provisional API (FIXME) */
# ifdef __linux__
# define SOCK_DCCP 6
# endif
#endif
#ifdef SOCK_DCCP
var_Create (obj, "dccp-service", VLC_VAR_STRING);
var_SetString (obj, "dccp-service", "RTPV"); /* FIXME: RTPA? */
fd = net_Connect (obj, dhost, dport, SOCK_DCCP, tp);
#else
msg_Err (obj, "DCCP support not included");
#endif
break;
case IPPROTO_TCP:
fd = net_Connect (obj, dhost, dport, SOCK_STREAM, tp);
break;
}
free (tmp);
if (fd == -1)
return VLC_EGENERIC;
net_SetCSCov (fd, -1, 12);
/* Initializes demux */
demux_sys_t *p_sys = malloc (sizeof (*p_sys));
if (p_sys == NULL)
{
net_Close (fd);
if (rtcp_fd != -1)
net_Close (rtcp_fd);
return VLC_EGENERIC;
}
p_sys->chained_demux = NULL;
#ifdef HAVE_SRTP
p_sys->srtp = NULL;
#endif
p_sys->fd = fd;
p_sys->rtcp_fd = rtcp_fd;
p_sys->max_src = var_CreateGetInteger (obj, "rtp-max-src");
p_sys->timeout = var_CreateGetInteger (obj, "rtp-timeout")
* CLOCK_FREQ;
p_sys->max_dropout = var_CreateGetInteger (obj, "rtp-max-dropout");
p_sys->max_misorder = var_CreateGetInteger (obj, "rtp-max-misorder");
p_sys->thread_ready = false;
p_sys->autodetect = true;
demux->pf_demux = NULL;
demux->pf_control = Control;
demux->p_sys = p_sys;
p_sys->session = rtp_session_create (demux);
if (p_sys->session == NULL)
goto error;
#ifdef HAVE_SRTP
char *key = var_CreateGetNonEmptyString (demux, "srtp-key");
if (key)
{
vlc_gcrypt_init ();
p_sys->srtp = srtp_create (SRTP_ENCR_AES_CM, SRTP_AUTH_HMAC_SHA1, 10,
SRTP_PRF_AES_CM, SRTP_RCC_MODE1);
if (p_sys->srtp == NULL)
{
free (key);
goto error;
}
char *salt = var_CreateGetNonEmptyString (demux, "srtp-salt");
int val = srtp_setkeystring (p_sys->srtp, key, salt ? salt : "");
free (salt);
free (key);
if (val)
{
msg_Err (obj, "bad SRTP key/salt combination (%s)",
vlc_strerror_c(val));
goto error;
}
}
#endif
if (vlc_clone (&p_sys->thread,
(tp != IPPROTO_TCP) ? rtp_dgram_thread : rtp_stream_thread,
demux, VLC_THREAD_PRIORITY_INPUT))
goto error;
p_sys->thread_ready = true;
return VLC_SUCCESS;
error:
Close (obj);
return VLC_EGENERIC;
}
