static SalStreamDescription * sdp_to_stream_description(SalMediaDescription *md, belle_sdp_media_description_t *media_desc) { SalStreamDescription *stream; belle_sdp_connection_t* cnx; belle_sdp_media_t* media; belle_sdp_attribute_t* attribute; const char* value; const char *mtype,*proto; stream=&md->streams[md->nb_streams]; media=belle_sdp_media_description_get_media ( media_desc ); memset ( stream,0,sizeof ( *stream ) ); proto = belle_sdp_media_get_protocol ( media ); stream->proto=SalProtoOther; if ( proto ) { if (strcasecmp(proto, "RTP/AVP") == 0) { stream->proto = SalProtoRtpAvp; } else if (strcasecmp(proto, "RTP/SAVP") == 0) { stream->proto = SalProtoRtpSavp; } else if (strcasecmp(proto, "RTP/AVPF") == 0) { stream->proto = SalProtoRtpAvpf; } else if (strcasecmp(proto, "RTP/SAVPF") == 0) { stream->proto = SalProtoRtpSavpf; } else { strncpy(stream->proto_other,proto,sizeof(stream->proto_other)-1); } } if ( ( cnx=belle_sdp_media_description_get_connection ( media_desc ) ) && belle_sdp_connection_get_address ( cnx ) ) { strncpy ( stream->rtp_addr,belle_sdp_connection_get_address ( cnx ), sizeof ( stream->rtp_addr ) -1 ); } stream->rtp_port=belle_sdp_media_get_media_port ( media ); mtype = belle_sdp_media_get_media_type ( media ); if ( strcasecmp ( "audio", mtype ) == 0 ) { stream->type=SalAudio; } else if ( strcasecmp ( "video", mtype ) == 0 ) { stream->type=SalVideo; } else { stream->type=SalOther; strncpy ( stream->typeother,mtype,sizeof ( stream->typeother )-1 ); } if ( belle_sdp_media_description_get_bandwidth ( media_desc,"AS" ) >0 ) { stream->bandwidth=belle_sdp_media_description_get_bandwidth ( media_desc,"AS" ); } if ( belle_sdp_media_description_get_attribute ( media_desc,"sendrecv" ) ) { stream->dir=SalStreamSendRecv; } else if ( belle_sdp_media_description_get_attribute ( media_desc,"sendonly" ) ) { stream->dir=SalStreamSendOnly; } else if ( belle_sdp_media_description_get_attribute ( media_desc,"recvonly" ) ) { stream->dir=SalStreamRecvOnly; } else if ( belle_sdp_media_description_get_attribute ( media_desc,"inactive" ) ) { stream->dir=SalStreamInactive; } else { stream->dir=md->dir; /*takes default value if not present*/ } /* Get media payload types */ sdp_parse_payload_types(media_desc, stream); /* Get media specific RTCP attribute */ stream->rtcp_port = stream->rtp_port + 1; snprintf(stream->rtcp_addr, sizeof(stream->rtcp_addr), "%s", stream->rtp_addr); attribute=belle_sdp_media_description_get_attribute(media_desc,"rtcp"); if (attribute && (value=belle_sdp_attribute_get_value(attribute))!=NULL){ char tmp[256]; int nb = sscanf(value, "%d IN IP4 %s", &stream->rtcp_port, tmp); if (nb == 1) { /* SDP rtcp attribute only contains the port */ } else if (nb == 2) { strncpy(stream->rtcp_addr, tmp, sizeof(stream->rtcp_addr)-1); } else { ms_warning("sdp has a strange a=rtcp line (%s) nb=%i", value, nb); } } /* Read crypto lines if any */ if ((stream->proto == SalProtoRtpSavpf) || (stream->proto == SalProtoRtpSavp)) { sdp_parse_media_crypto_parameters(media_desc, stream); } /* Get ICE candidate attributes if any */ sdp_parse_media_ice_parameters(media_desc, stream); /* Get RTCP-FB attributes if any */ if ((stream->proto == SalProtoRtpAvpf) || (stream->proto == SalProtoRtpSavpf)) { enable_avpf_for_stream(stream); sdp_parse_rtcp_fb_parameters(media_desc, stream); } /* Get RTCP-XR attributes if any */ stream->rtcp_xr = md->rtcp_xr; // Use session parameters if no stream parameters are defined sdp_parse_media_rtcp_xr_parameters(media_desc, &stream->rtcp_xr); md->nb_streams++; return stream; }
static SalStreamDescription * sdp_to_stream_description(SalMediaDescription *md, belle_sdp_media_description_t *media_desc) { SalStreamDescription *stream; belle_sdp_connection_t* cnx; belle_sdp_media_t* media; belle_sdp_attribute_t* attribute; belle_sip_list_t *custom_attribute_it; const char* value; const char *mtype,*proto; bool_t has_avpf_attributes; stream=&md->streams[md->nb_streams]; media=belle_sdp_media_description_get_media ( media_desc ); proto = belle_sdp_media_get_protocol ( media ); stream->proto=SalProtoOther; if ( proto ) { if (strcasecmp(proto, "RTP/AVP") == 0) { stream->proto = SalProtoRtpAvp; } else if (strcasecmp(proto, "RTP/SAVP") == 0) { stream->proto = SalProtoRtpSavp; } else if (strcasecmp(proto, "RTP/AVPF") == 0) { stream->proto = SalProtoRtpAvpf; } else if (strcasecmp(proto, "RTP/SAVPF") == 0) { stream->proto = SalProtoRtpSavpf; } else if (strcasecmp(proto, "UDP/TLS/RTP/SAVP") == 0) { stream->proto = SalProtoUdpTlsRtpSavp; } else if (strcasecmp(proto, "UDP/TLS/RTP/SAVPF") == 0) { stream->proto = SalProtoUdpTlsRtpSavpf; } else { strncpy(stream->proto_other,proto,sizeof(stream->proto_other)-1); } } if ( ( cnx=belle_sdp_media_description_get_connection ( media_desc ) ) && belle_sdp_connection_get_address ( cnx ) ) { strncpy ( stream->rtp_addr,belle_sdp_connection_get_address ( cnx ), sizeof ( stream->rtp_addr ) -1 ); stream->ttl=belle_sdp_connection_get_ttl(cnx); } stream->rtp_port=belle_sdp_media_get_media_port ( media ); mtype = belle_sdp_media_get_media_type ( media ); if ( strcasecmp ( "audio", mtype ) == 0 ) { stream->type=SalAudio; } else if ( strcasecmp ( "video", mtype ) == 0 ) { stream->type=SalVideo; } else if ( strcasecmp ( "text", mtype ) == 0 ) { stream->type=SalText; } else { stream->type=SalOther; strncpy ( stream->typeother,mtype,sizeof ( stream->typeother )-1 ); } if ( belle_sdp_media_description_get_bandwidth ( media_desc,"AS" ) >0 ) { stream->bandwidth=belle_sdp_media_description_get_bandwidth ( media_desc,"AS" ); } if ( belle_sdp_media_description_get_attribute ( media_desc,"sendrecv" ) ) { stream->dir=SalStreamSendRecv; } else if ( belle_sdp_media_description_get_attribute ( media_desc,"sendonly" ) ) { stream->dir=SalStreamSendOnly; } else if ( belle_sdp_media_description_get_attribute ( media_desc,"recvonly" ) ) { stream->dir=SalStreamRecvOnly; } else if ( belle_sdp_media_description_get_attribute ( media_desc,"inactive" ) ) { stream->dir=SalStreamInactive; } else { stream->dir=md->dir; /*takes default value if not present*/ } stream->rtcp_mux = belle_sdp_media_description_get_attribute(media_desc, "rtcp-mux") != NULL; /* Get media payload types */ sdp_parse_payload_types(media_desc, stream); /* Get media specific RTCP attribute */ stream->rtcp_port = stream->rtp_port + 1; snprintf(stream->rtcp_addr, sizeof(stream->rtcp_addr), "%s", stream->rtp_addr); attribute=belle_sdp_media_description_get_attribute(media_desc,"rtcp"); if (attribute && (value=belle_sdp_attribute_get_value(attribute))!=NULL){ char tmp[256]; int nb = sscanf(value, "%d IN IP4 %s", &stream->rtcp_port, tmp); if (nb == 1) { /* SDP rtcp attribute only contains the port */ } else if (nb == 2) { strncpy(stream->rtcp_addr, tmp, sizeof(stream->rtcp_addr)-1); } else { ms_warning("sdp has a strange a=rtcp line (%s) nb=%i", value, nb); } } /* Read DTLS specific attributes : check is some are found in the stream description otherwise copy the session description one(which are at least set to Invalid) */ if (((stream->proto == SalProtoUdpTlsRtpSavpf) || (stream->proto == SalProtoUdpTlsRtpSavp))) { attribute=belle_sdp_media_description_get_attribute(media_desc,"setup"); if (attribute && (value=belle_sdp_attribute_get_value(attribute))!=NULL){ if (strncmp(value, "actpass", 7) == 0) { stream->dtls_role = SalDtlsRoleUnset; } else if (strncmp(value, "active", 6) == 0) { stream->dtls_role = SalDtlsRoleIsClient; } else if (strncmp(value, "passive", 7) == 0) { stream->dtls_role = SalDtlsRoleIsServer; } } if (stream->dtls_role != SalDtlsRoleInvalid && (attribute=belle_sdp_media_description_get_attribute(media_desc,"fingerprint"))) { strncpy(stream->dtls_fingerprint, belle_sdp_attribute_get_value(attribute),sizeof(stream->dtls_fingerprint)); } } /* Read crypto lines if any */ if (sal_stream_description_has_srtp(stream)) { sdp_parse_media_crypto_parameters(media_desc, stream); } /* Get ICE candidate attributes if any */ sdp_parse_media_ice_parameters(media_desc, stream); has_avpf_attributes = sdp_parse_rtcp_fb_parameters(media_desc, stream); /* Get RTCP-FB attributes if any */ if (sal_stream_description_has_avpf(stream)) { enable_avpf_for_stream(stream); } else if (has_avpf_attributes ){ stream->implicit_rtcp_fb = TRUE; } /* Get RTCP-XR attributes if any */ stream->rtcp_xr = md->rtcp_xr; // Use session parameters if no stream parameters are defined sdp_parse_media_rtcp_xr_parameters(media_desc, &stream->rtcp_xr); /* Get the custom attributes */ for (custom_attribute_it = belle_sdp_media_description_get_attributes(media_desc); custom_attribute_it != NULL; custom_attribute_it = custom_attribute_it->next) { belle_sdp_attribute_t *attr = (belle_sdp_attribute_t *)custom_attribute_it->data; stream->custom_sdp_attributes = sal_custom_sdp_attribute_append(stream->custom_sdp_attributes, belle_sdp_attribute_get_name(attr), belle_sdp_attribute_get_value(attr)); } md->nb_streams++; return stream; }