static void test_rtcp_fb_attribute(void) {
belle_sdp_rtcp_fb_attribute_t* lAttribute;
lAttribute = BELLE_SDP_RTCP_FB_ATTRIBUTE(attribute_parse_marshall_parse_clone("a=rtcp-fb:* ack"));
CU_ASSERT_STRING_EQUAL(belle_sdp_attribute_get_name(BELLE_SDP_ATTRIBUTE(lAttribute)), "rtcp-fb");
CU_ASSERT_EQUAL(belle_sdp_rtcp_fb_attribute_get_id(lAttribute), -1);
CU_ASSERT_EQUAL(belle_sdp_rtcp_fb_attribute_get_type(lAttribute), BELLE_SDP_RTCP_FB_ACK);
CU_ASSERT_EQUAL(belle_sdp_rtcp_fb_attribute_get_param(lAttribute), BELLE_SDP_RTCP_FB_NONE);
belle_sip_object_unref(BELLE_SIP_OBJECT(lAttribute));
lAttribute = BELLE_SDP_RTCP_FB_ATTRIBUTE(attribute_parse_marshall_parse_clone("a=rtcp-fb:98 nack rpsi"));
CU_ASSERT_STRING_EQUAL(belle_sdp_attribute_get_name(BELLE_SDP_ATTRIBUTE(lAttribute)), "rtcp-fb");
CU_ASSERT_EQUAL(belle_sdp_rtcp_fb_attribute_get_id(lAttribute), 98);
CU_ASSERT_EQUAL(belle_sdp_rtcp_fb_attribute_get_type(lAttribute), BELLE_SDP_RTCP_FB_NACK);
CU_ASSERT_EQUAL(belle_sdp_rtcp_fb_attribute_get_param(lAttribute), BELLE_SDP_RTCP_FB_RPSI);
belle_sip_object_unref(BELLE_SIP_OBJECT(lAttribute));
lAttribute = BELLE_SDP_RTCP_FB_ATTRIBUTE(attribute_parse_marshall_parse_clone("a=rtcp-fb:* trr-int 3"));
CU_ASSERT_STRING_EQUAL(belle_sdp_attribute_get_name(BELLE_SDP_ATTRIBUTE(lAttribute)), "rtcp-fb");
CU_ASSERT_EQUAL(belle_sdp_rtcp_fb_attribute_get_id(lAttribute), -1);
CU_ASSERT_EQUAL(belle_sdp_rtcp_fb_attribute_get_type(lAttribute), BELLE_SDP_RTCP_FB_TRR_INT);
CU_ASSERT_EQUAL(belle_sdp_rtcp_fb_attribute_get_trr_int(lAttribute), 3);
belle_sip_object_unref(BELLE_SIP_OBJECT(lAttribute));
lAttribute = BELLE_SDP_RTCP_FB_ATTRIBUTE(attribute_parse_marshall_parse_clone("a=rtcp-fb:103 ccm fir"));
CU_ASSERT_STRING_EQUAL(belle_sdp_attribute_get_name(BELLE_SDP_ATTRIBUTE(lAttribute)), "rtcp-fb");
CU_ASSERT_EQUAL(belle_sdp_rtcp_fb_attribute_get_id(lAttribute), 103);
CU_ASSERT_EQUAL(belle_sdp_rtcp_fb_attribute_get_type(lAttribute), BELLE_SDP_RTCP_FB_CCM);
CU_ASSERT_EQUAL(belle_sdp_rtcp_fb_attribute_get_param(lAttribute), BELLE_SDP_RTCP_FB_FIR);
belle_sip_object_unref(BELLE_SIP_OBJECT(lAttribute));
}
static void test_attribute_2(void) {
belle_sdp_attribute_t* lAttribute = attribute_parse_marshall_parse_clone("a=ice-pwd:31ec21eb38b2ec6d36e8dc7b");
CU_ASSERT_STRING_EQUAL(belle_sdp_attribute_get_name(lAttribute), "ice-pwd");
CU_ASSERT_STRING_EQUAL(belle_sdp_attribute_get_value(lAttribute), "31ec21eb38b2ec6d36e8dc7b");
CU_ASSERT_TRUE(belle_sdp_attribute_has_value(lAttribute));
belle_sip_object_unref(BELLE_SIP_OBJECT(lAttribute));
}
static void test_attribute(void) {
belle_sdp_attribute_t* lAttribute = attribute_parse_marshall_parse_clone("a=rtpmap:101 telephone-event/8000");
CU_ASSERT_STRING_EQUAL(belle_sdp_attribute_get_name(lAttribute), "rtpmap");
CU_ASSERT_STRING_EQUAL(belle_sdp_attribute_get_value(lAttribute), "101 telephone-event/8000");
CU_ASSERT_TRUE(belle_sdp_attribute_has_value(lAttribute));
belle_sip_object_unref(BELLE_SIP_OBJECT(lAttribute));
}
static bool_t sdp_parse_rtcp_fb_parameters(belle_sdp_media_description_t *media_desc, SalStreamDescription *stream) {
belle_sip_list_t *it;
belle_sdp_attribute_t *attribute;
belle_sdp_rtcp_fb_attribute_t *fb_attribute;
MSList *pt_it;
PayloadType *pt;
int8_t pt_num;
bool_t retval = FALSE;
/* Handle rtcp-fb attributes that concern all payload types. */
for (it = belle_sdp_media_description_get_attributes(media_desc); it != NULL; it = it->next) {
attribute = BELLE_SDP_ATTRIBUTE(it->data);
if (keywordcmp("rtcp-fb", belle_sdp_attribute_get_name(attribute)) == 0) {
fb_attribute = BELLE_SDP_RTCP_FB_ATTRIBUTE(attribute);
if (belle_sdp_rtcp_fb_attribute_get_id(fb_attribute) == -1) {
for (pt_it = stream->payloads; pt_it != NULL; pt_it = pt_it->next) {
pt = (PayloadType *)pt_it->data;
apply_rtcp_fb_attribute_to_payload(fb_attribute, stream, pt);
retval = TRUE;
}
}
}
}
/* Handle rtcp-fb attributes that are specefic to a payload type. */
for (it = belle_sdp_media_description_get_attributes(media_desc); it != NULL; it = it->next) {
attribute = BELLE_SDP_ATTRIBUTE(it->data);
if (keywordcmp("rtcp-fb", belle_sdp_attribute_get_name(attribute)) == 0) {
fb_attribute = BELLE_SDP_RTCP_FB_ATTRIBUTE(attribute);
pt_num = belle_sdp_rtcp_fb_attribute_get_id(fb_attribute);
for (pt_it = stream->payloads; pt_it != NULL; pt_it = pt_it->next) {
pt = (PayloadType *)pt_it->data;
retval = TRUE;
if (payload_type_get_number(pt) == (int)pt_num) {
apply_rtcp_fb_attribute_to_payload(fb_attribute, stream, pt);
}
}
}
}
return retval;
}
static void sdp_parse_media_crypto_parameters(belle_sdp_media_description_t *media_desc, SalStreamDescription *stream) {
belle_sip_list_t *attribute_it;
belle_sdp_attribute_t *attribute;
char tmp[256], tmp2[256], parameters[256]={0};
int valid_count = 0;
int nb;
memset ( &stream->crypto, 0, sizeof ( stream->crypto ) );
for ( attribute_it=belle_sdp_media_description_get_attributes ( media_desc )
; valid_count < SAL_CRYPTO_ALGO_MAX && attribute_it!=NULL;
attribute_it=attribute_it->next ) {
attribute=BELLE_SDP_ATTRIBUTE ( attribute_it->data );
if ( keywordcmp ( "crypto",belle_sdp_attribute_get_name ( attribute ) ) ==0 && belle_sdp_attribute_get_value ( attribute ) !=NULL ) {
nb = sscanf ( belle_sdp_attribute_get_value ( attribute ), "%d %256s inline:%256s %256s",
&stream->crypto[valid_count].tag,
tmp,
tmp2, parameters );
if ( nb >= 3 ) {
MSCryptoSuite cs;
MSCryptoSuiteNameParams np;
np.name=tmp;
np.params=parameters[0]!='\0' ? parameters : NULL;
cs=ms_crypto_suite_build_from_name_params(&np);
if (cs==MS_CRYPTO_SUITE_INVALID){
ms_warning ( "Failed to parse crypto-algo: '%s'", tmp );
stream->crypto[valid_count].algo = 0;
}else{
char *sep;
strncpy ( stream->crypto[valid_count].master_key, tmp2, sizeof(stream->crypto[valid_count].master_key)-1 );
sep=strchr(stream->crypto[valid_count].master_key,'|');
if (sep) *sep='\0';
stream->crypto[valid_count].algo = cs;
ms_message ( "Found valid crypto line (tag:%d algo:'%s' key:'%s'",
stream->crypto[valid_count].tag,
tmp,
stream->crypto[valid_count].master_key );
valid_count++;
}
}else{
ms_warning ( "sdp has a strange a= line (%s) nb=%i",belle_sdp_attribute_get_value ( attribute ),nb );
}
}
}
ms_message("Found: %d valid crypto lines", valid_count );
}
static void sdp_parse_media_ice_parameters(belle_sdp_media_description_t *media_desc, SalStreamDescription *stream) {
belle_sip_list_t *attribute_it;
belle_sdp_attribute_t *attribute;
const char *att_name;
const char *value;
int nb_ice_candidates = 0;
for (attribute_it = belle_sdp_media_description_get_attributes(media_desc); attribute_it != NULL; attribute_it=attribute_it->next) {
attribute=BELLE_SDP_ATTRIBUTE(attribute_it->data);
att_name = belle_sdp_attribute_get_name(attribute);
value = belle_sdp_attribute_get_value(attribute);
if ( (nb_ice_candidates < sizeof (stream->ice_candidates)/sizeof(SalIceCandidate))
&& (keywordcmp("candidate", att_name) == 0)
&& (value != NULL)) {
SalIceCandidate *candidate = &stream->ice_candidates[nb_ice_candidates];
char proto[4];
int nb = sscanf(value, "%s %u %3s %u %s %d typ %s raddr %s rport %d",
candidate->foundation, &candidate->componentID, proto, &candidate->priority, candidate->addr, &candidate->port,
candidate->type, candidate->raddr, &candidate->rport);
if (strcasecmp("udp",proto)==0 && ((nb == 7) || (nb == 9))) nb_ice_candidates++;
else memset(candidate, 0, sizeof(*candidate));
} else if ((keywordcmp("remote-candidates", att_name) == 0) && (value != NULL)) {
SalIceRemoteCandidate candidate;
unsigned int componentID;
int offset;
const char *ptr = value;
const char *endptr = value + strlen(ptr);
while (3 == sscanf(ptr, "%u %s %u%n", &componentID, candidate.addr, &candidate.port, &offset)) {
if ((componentID > 0) && (componentID <= SAL_MEDIA_DESCRIPTION_MAX_ICE_REMOTE_CANDIDATES)) {
SalIceRemoteCandidate *remote_candidate = &stream->ice_remote_candidates[componentID - 1];
strncpy(remote_candidate->addr, candidate.addr, sizeof(remote_candidate->addr)-1);
remote_candidate->port = candidate.port;
}
ptr += offset;
if (ptr < endptr) {
if (ptr[offset] == ' ') ptr += 1;
} else break;
}
} else if ((keywordcmp("ice-ufrag", att_name) == 0) && (value != NULL)) {
strncpy(stream->ice_ufrag, value, sizeof(stream->ice_ufrag)-1);
} else if ((keywordcmp("ice-pwd", att_name) == 0) && (value != NULL)) {
strncpy(stream->ice_pwd, value, sizeof(stream->ice_pwd) -1);
} else if (keywordcmp("ice-mismatch", att_name) == 0) {
stream->ice_mismatch = TRUE;
}
}
}
static void sdp_parse_media_crypto_parameters(belle_sdp_media_description_t *media_desc, SalStreamDescription *stream) {
belle_sip_list_t *attribute_it;
belle_sdp_attribute_t *attribute;
char tmp[256], tmp2[256];
int valid_count = 0;
int nb;
memset ( &stream->crypto, 0, sizeof ( stream->crypto ) );
for ( attribute_it=belle_sdp_media_description_get_attributes ( media_desc )
; valid_count < SAL_CRYPTO_ALGO_MAX && attribute_it!=NULL;
attribute_it=attribute_it->next ) {
attribute=BELLE_SDP_ATTRIBUTE ( attribute_it->data );
if ( keywordcmp ( "crypto",belle_sdp_attribute_get_name ( attribute ) ) ==0 && belle_sdp_attribute_get_value ( attribute ) !=NULL ) {
nb = sscanf ( belle_sdp_attribute_get_value ( attribute ), "%d %256s inline:%256s",
&stream->crypto[valid_count].tag,
tmp,
tmp2 );
ms_message ( "Found valid crypto line (tag:%d algo:'%s' key:'%s'",
stream->crypto[valid_count].tag,
tmp,
tmp2 );
if ( nb == 3 ) {
if ( keywordcmp ( "AES_CM_128_HMAC_SHA1_80",tmp ) == 0 )
stream->crypto[valid_count].algo = AES_128_SHA1_80;
else if ( keywordcmp ( "AES_CM_128_HMAC_SHA1_32",tmp ) == 0 )
stream->crypto[valid_count].algo = AES_128_SHA1_32;
else {
ms_warning ( "Failed to parse crypto-algo: '%s'", tmp );
stream->crypto[valid_count].algo = 0;
}
if ( stream->crypto[valid_count].algo ) {
strncpy ( stream->crypto[valid_count].master_key, tmp2, 41 );
stream->crypto[valid_count].master_key[40] = '\0';
ms_message ( "Found valid crypto line (tag:%d algo:'%s' key:'%s'",
stream->crypto[valid_count].tag,
tmp,
stream->crypto[valid_count].master_key );
valid_count++;
}
} else {
ms_warning ( "sdp has a strange a= line (%s) nb=%i",belle_sdp_attribute_get_value ( attribute ),nb );
}
}
}
ms_message ( "Found: %d valid crypto lines", valid_count );
}
static void test_rtcp_xr_attribute(void) {
belle_sdp_rtcp_xr_attribute_t* lAttribute;
lAttribute = BELLE_SDP_RTCP_XR_ATTRIBUTE(attribute_parse_marshall_parse_clone("a=rtcp-xr"));
CU_ASSERT_STRING_EQUAL(belle_sdp_attribute_get_name(BELLE_SDP_ATTRIBUTE(lAttribute)), "rtcp-xr");
CU_ASSERT_TRUE(belle_sdp_rtcp_xr_attribute_has_stat_summary(lAttribute) == FALSE);
CU_ASSERT_TRUE(belle_sdp_rtcp_xr_attribute_has_voip_metrics(lAttribute) == FALSE);
belle_sip_object_unref(BELLE_SIP_OBJECT(lAttribute));
lAttribute = BELLE_SDP_RTCP_XR_ATTRIBUTE(attribute_parse_marshall_parse_clone("a=rtcp-xr:rcvr-rtt=all:10"));
CU_ASSERT_STRING_EQUAL(belle_sdp_attribute_get_name(BELLE_SDP_ATTRIBUTE(lAttribute)), "rtcp-xr");
CU_ASSERT_STRING_EQUAL(belle_sdp_rtcp_xr_attribute_get_rcvr_rtt_mode(lAttribute), "all");
CU_ASSERT_EQUAL(belle_sdp_rtcp_xr_attribute_get_rcvr_rtt_max_size(lAttribute), 10);
belle_sip_object_unref(BELLE_SIP_OBJECT(lAttribute));
lAttribute = BELLE_SDP_RTCP_XR_ATTRIBUTE(attribute_parse_marshall_parse_clone("a=rtcp-xr:stat-summary"));
CU_ASSERT_STRING_EQUAL(belle_sdp_attribute_get_name(BELLE_SDP_ATTRIBUTE(lAttribute)), "rtcp-xr");
CU_ASSERT_PTR_NULL(belle_sdp_rtcp_xr_attribute_get_rcvr_rtt_mode(lAttribute));
CU_ASSERT_TRUE(belle_sdp_rtcp_xr_attribute_has_stat_summary(lAttribute) == TRUE);
CU_ASSERT_TRUE(belle_sdp_rtcp_xr_attribute_has_voip_metrics(lAttribute) == FALSE);
belle_sip_object_unref(BELLE_SIP_OBJECT(lAttribute));
lAttribute = BELLE_SDP_RTCP_XR_ATTRIBUTE(attribute_parse_marshall_parse_clone("a=rtcp-xr:stat-summary=loss,jitt"));
CU_ASSERT_STRING_EQUAL(belle_sdp_attribute_get_name(BELLE_SDP_ATTRIBUTE(lAttribute)), "rtcp-xr");
CU_ASSERT_TRUE(belle_sdp_rtcp_xr_attribute_has_stat_summary(lAttribute) == TRUE);
CU_ASSERT_PTR_NOT_NULL(belle_sip_list_find_custom(belle_sdp_rtcp_xr_attribute_get_stat_summary_flags(lAttribute), (belle_sip_compare_func)strcasecmp, "loss"));
CU_ASSERT_PTR_NOT_NULL(belle_sip_list_find_custom(belle_sdp_rtcp_xr_attribute_get_stat_summary_flags(lAttribute), (belle_sip_compare_func)strcasecmp, "jitt"));
CU_ASSERT_PTR_NULL(belle_sip_list_find_custom(belle_sdp_rtcp_xr_attribute_get_stat_summary_flags(lAttribute), (belle_sip_compare_func)strcasecmp, "HL"));
belle_sip_object_unref(BELLE_SIP_OBJECT(lAttribute));
lAttribute = BELLE_SDP_RTCP_XR_ATTRIBUTE(attribute_parse_marshall_parse_clone("a=rtcp-xr:voip-metrics"));
CU_ASSERT_STRING_EQUAL(belle_sdp_attribute_get_name(BELLE_SDP_ATTRIBUTE(lAttribute)), "rtcp-xr");
CU_ASSERT_TRUE(belle_sdp_rtcp_xr_attribute_has_stat_summary(lAttribute) == FALSE);
CU_ASSERT_TRUE(belle_sdp_rtcp_xr_attribute_has_voip_metrics(lAttribute) == TRUE);
belle_sip_object_unref(BELLE_SIP_OBJECT(lAttribute));
lAttribute = BELLE_SDP_RTCP_XR_ATTRIBUTE(attribute_parse_marshall_parse_clone("a=rtcp-xr:rcvr-rtt=sender stat-summary=loss,dup,jitt,TTL voip-metrics"));
CU_ASSERT_STRING_EQUAL(belle_sdp_attribute_get_name(BELLE_SDP_ATTRIBUTE(lAttribute)), "rtcp-xr");
CU_ASSERT_STRING_EQUAL(belle_sdp_rtcp_xr_attribute_get_rcvr_rtt_mode(lAttribute), "sender");
CU_ASSERT_TRUE(belle_sdp_rtcp_xr_attribute_has_stat_summary(lAttribute) == TRUE);
CU_ASSERT_PTR_NOT_NULL(belle_sip_list_find_custom(belle_sdp_rtcp_xr_attribute_get_stat_summary_flags(lAttribute), (belle_sip_compare_func)strcasecmp, "loss"));
CU_ASSERT_PTR_NOT_NULL(belle_sip_list_find_custom(belle_sdp_rtcp_xr_attribute_get_stat_summary_flags(lAttribute), (belle_sip_compare_func)strcasecmp, "dup"));
CU_ASSERT_PTR_NOT_NULL(belle_sip_list_find_custom(belle_sdp_rtcp_xr_attribute_get_stat_summary_flags(lAttribute), (belle_sip_compare_func)strcasecmp, "jitt"));
CU_ASSERT_PTR_NOT_NULL(belle_sip_list_find_custom(belle_sdp_rtcp_xr_attribute_get_stat_summary_flags(lAttribute), (belle_sip_compare_func)strcasecmp, "TTL"));
CU_ASSERT_TRUE(belle_sdp_rtcp_xr_attribute_has_voip_metrics(lAttribute) == TRUE);
belle_sip_object_unref(BELLE_SIP_OBJECT(lAttribute));
}
int static compare_attribute(belle_sdp_attribute_t* attr, const char* value) {
return strcasecmp(belle_sdp_attribute_get_name(attr),"rtpmap")==0
|| strcasecmp(belle_sdp_attribute_get_value(attr),value)==0;
}
int sdp_to_media_description ( belle_sdp_session_description_t *session_desc, SalMediaDescription *desc ) {
/*
typedef struct SalMediaDescription{
int refcount;
char addr[64];
char username[64];
int nstreams;
int bandwidth;
unsigned int session_ver;
unsigned int session_id;
SalStreamDescription streams[SAL_MEDIA_DESCRIPTION_MAX_STREAMS];
} SalMediaDescription;
*/
belle_sdp_connection_t* cnx;
belle_sip_list_t* media_desc_it;
belle_sdp_media_description_t* media_desc;
const char *mtype,*proto;
SalStreamDescription *stream;
belle_sdp_media_t* media;
belle_sip_list_t* mime_params=NULL;
belle_sip_list_t* mime_param_it=NULL;
belle_sdp_mime_parameter_t* mime_param;
PayloadType *pt;
belle_sip_list_t* attribute_it;
const belle_sdp_attribute_t* attribute;
int valid_count = 0;
char tmp[256], tmp2[256];
int nb=0;
SalStreamDir stream_dir=SalStreamSendRecv;
const char* value;
desc->n_active_streams = 0;
desc->n_total_streams = 0;
if ( ( cnx=belle_sdp_session_description_get_connection ( session_desc ) ) && belle_sdp_connection_get_address ( cnx ) ) {
strncpy ( desc->addr,belle_sdp_connection_get_address ( cnx ),sizeof ( desc->addr ) );
}
if ( belle_sdp_session_description_get_bandwidth ( session_desc,"AS" ) >0 ) {
desc->bandwidth=belle_sdp_session_description_get_bandwidth ( session_desc,"AS" );
}
/*in some very rare case, session attribute may set stream dir*/
if ( belle_sdp_session_description_get_attribute ( session_desc,"sendrecv" ) ) {
stream_dir=SalStreamSendRecv;
} else if ( belle_sdp_session_description_get_attribute ( session_desc,"sendonly" ) ) {
stream_dir=SalStreamSendOnly;
} else if ( belle_sdp_session_description_get_attribute ( session_desc,"recvonly" ) ) {
stream_dir=SalStreamRecvOnly;
} else if ( belle_sdp_session_description_get_attribute ( session_desc,"inactive" ) ) {
stream_dir=SalStreamInactive;
}
/* Get ICE remote ufrag and remote pwd, and ice_lite flag */
value=belle_sdp_session_description_get_attribute_value(session_desc,"ice-ufrag");
if (value) strncpy(desc->ice_ufrag, value, sizeof(desc->ice_ufrag));
value=belle_sdp_session_description_get_attribute_value(session_desc,"ice-pwd");
if (value) strncpy(desc->ice_pwd, value, sizeof(desc->ice_pwd));
value=belle_sdp_session_description_get_attribute_value(session_desc,"ice-lite");
if (value) desc->ice_lite = TRUE;
for ( media_desc_it=belle_sdp_session_description_get_media_descriptions ( session_desc )
; media_desc_it!=NULL
; media_desc_it=media_desc_it->next ) {
int nb_ice_candidates=0;
media_desc=BELLE_SDP_MEDIA_DESCRIPTION ( media_desc_it->data );
stream=&desc->streams[desc->n_total_streams];
media=belle_sdp_media_description_get_media ( media_desc );
memset ( stream,0,sizeof ( *stream ) );
proto = belle_sdp_media_get_protocol ( media );
stream->proto=SalProtoUnknown;
if ( proto ) {
if ( strcasecmp ( proto,"RTP/AVP" ) ==0 )
stream->proto=SalProtoRtpAvp;
else if ( strcasecmp ( proto,"RTP/SAVP" ) ==0 ) {
stream->proto=SalProtoRtpSavp;
}
}
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 ) );
}
stream->rtp_port=belle_sdp_media_get_media_port ( media );
if ( stream->rtp_port > 0 )
desc->n_active_streams++;
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=stream_dir; /*takes default value if not present*/
}
/* for each payload type */
mime_params=belle_sdp_media_description_build_mime_parameters ( media_desc );
for ( mime_param_it=mime_params
; mime_param_it!=NULL
; mime_param_it=mime_param_it->next ) {
mime_param=BELLE_SDP_MIME_PARAMETER ( mime_param_it->data )
pt=payload_type_new();
payload_type_set_number ( pt,belle_sdp_mime_parameter_get_media_format ( mime_param ) );
pt->clock_rate=belle_sdp_mime_parameter_get_rate ( mime_param );
pt->mime_type=ms_strdup ( belle_sdp_mime_parameter_get_type ( mime_param ) );
pt->channels=belle_sdp_mime_parameter_get_channel_count ( mime_param );
payload_type_set_send_fmtp ( pt,belle_sdp_mime_parameter_get_parameters ( mime_param ) );
stream->payloads=ms_list_append ( stream->payloads,pt );
stream->ptime=belle_sdp_mime_parameter_get_ptime ( mime_param );
ms_message ( "Found payload %s/%i fmtp=%s",pt->mime_type,pt->clock_rate,
pt->send_fmtp ? pt->send_fmtp : "" );
}
if ( mime_params ) belle_sip_list_free_with_data ( mime_params,belle_sip_object_unref );
/* 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));
} else {
ms_warning("sdp has a strange a=rtcp line (%s) nb=%i", value, nb);
}
}
/* read crypto lines if any */
if ( stream->proto == SalProtoRtpSavp ) {
valid_count=0;
memset ( &stream->crypto, 0, sizeof ( stream->crypto ) );
for ( attribute_it=belle_sdp_media_description_get_attributes ( media_desc )
; valid_count < SAL_CRYPTO_ALGO_MAX && attribute_it!=NULL;
attribute_it=attribute_it->next ) {
attribute=BELLE_SDP_ATTRIBUTE ( attribute_it->data );
if ( keywordcmp ( "crypto",belle_sdp_attribute_get_name ( attribute ) ) ==0 && belle_sdp_attribute_get_value ( attribute ) !=NULL ) {
nb = sscanf ( belle_sdp_attribute_get_value ( attribute ), "%d %256s inline:%256s",
&stream->crypto[valid_count].tag,
tmp,
tmp2 );
ms_message ( "Found valid crypto line (tag:%d algo:'%s' key:'%s'",
stream->crypto[valid_count].tag,
tmp,
tmp2 );
if ( nb == 3 ) {
if ( keywordcmp ( "AES_CM_128_HMAC_SHA1_80",tmp ) == 0 )
stream->crypto[valid_count].algo = AES_128_SHA1_80;
else if ( keywordcmp ( "AES_CM_128_HMAC_SHA1_32",tmp ) == 0 )
stream->crypto[valid_count].algo = AES_128_SHA1_32;
else {
ms_warning ( "Failed to parse crypto-algo: '%s'", tmp );
stream->crypto[valid_count].algo = 0;
}
if ( stream->crypto[valid_count].algo ) {
strncpy ( stream->crypto[valid_count].master_key, tmp2, 41 );
stream->crypto[valid_count].master_key[40] = '\0';
ms_message ( "Found valid crypto line (tag:%d algo:'%s' key:'%s'",
stream->crypto[valid_count].tag,
tmp,
stream->crypto[valid_count].master_key );
valid_count++;
}
} else {
ms_warning ( "sdp has a strange a= line (%s) nb=%i",belle_sdp_attribute_get_value ( attribute ),nb );
}
}
}
ms_message ( "Found: %d valid crypto lines", valid_count );
}
/* Get ICE candidate attributes if any */
for (attribute_it = belle_sdp_media_description_get_attributes(media_desc); attribute_it != NULL; attribute_it=attribute_it->next) {
const char *att_name;
attribute=(belle_sdp_attribute_t*)attribute_it->data;
att_name=belle_sdp_attribute_get_name(attribute);
value=belle_sdp_attribute_get_value(attribute);
if ((keywordcmp("candidate", att_name) == 0) && (value != NULL)) {
SalIceCandidate *candidate = &stream->ice_candidates[nb_ice_candidates];
int nb = sscanf(value, "%s %u UDP %u %s %d typ %s raddr %s rport %d",
candidate->foundation, &candidate->componentID, &candidate->priority, candidate->addr, &candidate->port,
candidate->type, candidate->raddr, &candidate->rport);
if ((nb == 6) || (nb == 8)) nb_ice_candidates++;
else memset(candidate, 0, sizeof(*candidate));
} else if ((keywordcmp("remote-candidates", att_name) == 0) && (value != NULL)) {
SalIceRemoteCandidate candidate;
unsigned int componentID;
int offset;
const char *ptr = value;
const char *endptr=value+strlen(ptr);
while (3 == sscanf(ptr, "%u %s %u%n", &componentID, candidate.addr, &candidate.port, &offset)) {
if ((componentID > 0) && (componentID <= SAL_MEDIA_DESCRIPTION_MAX_ICE_REMOTE_CANDIDATES)) {
SalIceRemoteCandidate *remote_candidate = &stream->ice_remote_candidates[componentID - 1];
strncpy(remote_candidate->addr, candidate.addr, sizeof(remote_candidate->addr));
remote_candidate->port = candidate.port;
}
ptr += offset;
if (ptr<endptr){
if (ptr[offset] == ' ') ptr += 1;
}else break;
}
} else if ((keywordcmp("ice-ufrag", att_name) == 0) && (value != NULL)) {
strncpy(stream->ice_ufrag, value, sizeof(stream->ice_ufrag));
} else if ((keywordcmp("ice-pwd", att_name) == 0) && (value != NULL)) {
strncpy(stream->ice_pwd, value, sizeof(stream->ice_pwd));
} else if (keywordcmp("ice-mismatch", att_name) == 0) {
stream->ice_mismatch = TRUE;
}
}
desc->n_total_streams++;
}
return 0;
}
int sdp_to_media_description ( belle_sdp_session_description_t *session_desc, SalMediaDescription *desc ) {
belle_sdp_connection_t* cnx;
belle_sip_list_t* media_desc_it;
belle_sdp_media_description_t* media_desc;
belle_sdp_session_name_t *sname;
belle_sip_list_t *custom_attribute_it;
const char* value;
SalDtlsRole session_role=SalDtlsRoleInvalid;
int i;
desc->nb_streams = 0;
desc->dir = SalStreamSendRecv;
if ( ( cnx=belle_sdp_session_description_get_connection ( session_desc ) ) && belle_sdp_connection_get_address ( cnx ) ) {
strncpy ( desc->addr,belle_sdp_connection_get_address ( cnx ),sizeof ( desc->addr ) -1 );
}
if ( (sname=belle_sdp_session_description_get_session_name(session_desc)) && belle_sdp_session_name_get_value(sname) ){
strncpy(desc->name,belle_sdp_session_name_get_value(sname),sizeof(desc->name) - 1);
}
if ( belle_sdp_session_description_get_bandwidth ( session_desc,"AS" ) >0 ) {
desc->bandwidth=belle_sdp_session_description_get_bandwidth ( session_desc,"AS" );
}
/*in some very rare case, session attribute may set stream dir*/
if ( belle_sdp_session_description_get_attribute ( session_desc,"sendrecv" ) ) {
desc->dir=SalStreamSendRecv;
} else if ( belle_sdp_session_description_get_attribute ( session_desc,"sendonly" ) ) {
desc->dir=SalStreamSendOnly;
} else if ( belle_sdp_session_description_get_attribute ( session_desc,"recvonly" ) ) {
desc->dir=SalStreamRecvOnly;
} else if ( belle_sdp_session_description_get_attribute ( session_desc,"inactive" ) ) {
desc->dir=SalStreamInactive;
}
/*DTLS attributes can be defined at session level.*/
value=belle_sdp_session_description_get_attribute_value(session_desc,"setup");
if (value){
if (strncmp(value, "actpass", 7) == 0) {
session_role = SalDtlsRoleUnset;
} else if (strncmp(value, "active", 6) == 0) {
session_role = SalDtlsRoleIsClient;
} else if (strncmp(value, "passive", 7) == 0) {
session_role = SalDtlsRoleIsServer;
}
}
value=belle_sdp_session_description_get_attribute_value(session_desc,"fingerprint");
/*copy dtls attributes to every streams, might be overwritten stream by stream*/
for (i=0;i<SAL_MEDIA_DESCRIPTION_MAX_STREAMS;i++) {
if (value)
strncpy(desc->streams[i].dtls_fingerprint, value, sizeof(desc->streams[i].dtls_fingerprint));
desc->streams[i].dtls_role=session_role; /*set or reset value*/
}
/* Get ICE remote ufrag and remote pwd, and ice_lite flag */
value=belle_sdp_session_description_get_attribute_value(session_desc,"ice-ufrag");
if (value) strncpy(desc->ice_ufrag, value, sizeof(desc->ice_ufrag) - 1);
value=belle_sdp_session_description_get_attribute_value(session_desc,"ice-pwd");
if (value) strncpy(desc->ice_pwd, value, sizeof(desc->ice_pwd)-1);
value=belle_sdp_session_description_get_attribute_value(session_desc,"ice-lite");
if (value) desc->ice_lite = TRUE;
/* Get session RTCP-XR attributes if any */
sdp_parse_session_rtcp_xr_parameters(session_desc, &desc->rtcp_xr);
/* Get the custom attributes */
for (custom_attribute_it = belle_sdp_session_description_get_attributes(session_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;
desc->custom_sdp_attributes = sal_custom_sdp_attribute_append(desc->custom_sdp_attributes, belle_sdp_attribute_get_name(attr), belle_sdp_attribute_get_value(attr));
}
for ( media_desc_it=belle_sdp_session_description_get_media_descriptions ( session_desc )
; media_desc_it!=NULL
; media_desc_it=media_desc_it->next ) {
if (desc->nb_streams==SAL_MEDIA_DESCRIPTION_MAX_STREAMS){
ms_warning("Cannot convert mline at position [%i] from SDP to SalMediaDescription",desc->nb_streams);
break;
}
media_desc=BELLE_SDP_MEDIA_DESCRIPTION ( media_desc_it->data );
sdp_to_stream_description(desc, media_desc);
}
return 0;
}
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;
}