74 #define SDP_MIME_TYPE "application/sdp"
77 SDP_CURRENT_VERSION = 0
252 sdp_proto_extended_srtp = 261,
263 sdp_sendrecv = sdp_sendonly | sdp_recvonly
464 int pt,
char **return_result);
542 char const msg[], issize_t msgsize,
559 char msgbuf[], isize_t maxmsgsize,
566 #define sdp_mapped_attribute_find sdp_attribute_mapped_find
567 #define sdp_free_parser sdp_parser_free
568 #define sdp_free_printer sdp_printer_free
sdp_repeat_t * sdp_repeat_dup(su_home_t *, sdp_repeat_t const *)
Duplicate an SDP repeat structure.
Definition: sdp.c:270
int sdp_bandwidth_cmp(sdp_bandwidth_t const *a, sdp_bandwidth_t const *b)
Compare two bandwidth (b=) fields.
Definition: sdp.c:1262
char const * sdp_parsing_error(sdp_parser_t *p)
Get a parsing error message.
Definition: sdp_parse.c:237
sdp_media_t * sdp_media_dup(su_home_t *, sdp_media_t const *, sdp_session_t *)
Duplicate an SDP media description structure.
Definition: sdp.c:392
void sdp_attribute_append(sdp_attribute_t **list, sdp_attribute_t const *a)
Append a attribute to a list of attributes.
Definition: sdp.c:1675
int sdp_sanity_check(sdp_parser_t *)
Validates that all mandatory fields exist.
Definition: sdp_parse.c:569
void sdp_parser_free(sdp_parser_t *p)
Free an SDP parser.
Definition: sdp_parse.c:249
int sdp_key_cmp(sdp_key_t const *a, sdp_key_t const *b)
Compare two key (k=) fields.
Definition: sdp.c:1364
void sdp_printer_free(sdp_printer_t *p)
Free a SDP printer.
Definition: sdp_print.c:233
sdp_attribute_t * sdp_attribute_dup(su_home_t *, sdp_attribute_t const *)
Duplicate an SDP attribute structure.
Definition: sdp.c:330
sdp_session_t * sdp_session_dup(su_home_t *, sdp_session_t const *)
Duplicate an SDP session description structure.
Definition: sdp.c:997
sdp_key_t * sdp_key_dup(su_home_t *, sdp_key_t const *)
Duplicate an SDP key structure.
Definition: sdp.c:310
int sdp_session_cmp(sdp_session_t const *a, sdp_session_t const *b)
Compare two session descriptions.
Definition: sdp.c:1162
sdp_parser_t * sdp_parse(su_home_t *, char const msg[], issize_t msgsize, int flags)
Parse an SDP message.
Definition: sdp_parse.c:148
int sdp_media_has_rtp(sdp_media_t const *m)
Check if media uses RTP as its transport protocol
Definition: sdp_parse.c:1446
sdp_printer_t * sdp_print(su_home_t *, sdp_session_t const *, char msgbuf[], isize_t maxmsgsize, int flags)
Print a SDP description.
Definition: sdp_print.c:129
sdp_mode_t
Session mode.
Definition: sdp.h:259
sdp_connection_t * sdp_media_connections(sdp_media_t const *m)
Get connections of a media description.
Definition: sdp.c:1536
int sdp_rtpmap_cmp(sdp_rtpmap_t const *a, sdp_rtpmap_t const *b)
Compare two rtpmap structures.
Definition: sdp.c:1400
sdp_rtpmap_t * sdp_rtpmap_dup(su_home_t *, sdp_rtpmap_t const *)
Duplicate an rtpmap structure.
Definition: sdp.c:370
int sdp_rtpmap_match(sdp_rtpmap_t const *, sdp_rtpmap_t const *)
Check if payload type, rtp rate and parameters match in rtpmaps.
Definition: sdp.c:1859
struct sdp_printer_s sdp_printer_t
SDP printer handle.
Definition: sdp.h:555
sdp_nettype_e
Network type.
Definition: sdp.h:113
@ sdp_net_x
Unknown network type.
Definition: sdp.h:114
@ sdp_net_in
Internet.
Definition: sdp.h:115
sdp_attribute_t * sdp_attribute_find(sdp_attribute_t const *a, char const *name)
Find named attribute from given list.
Definition: sdp.c:1550
int sdp_origin_cmp(sdp_origin_t const *a, sdp_origin_t const *b)
Compare two origin fields.
Definition: sdp.c:1218
void sdp_media_type(sdp_media_t *m, char const *s)
Set media type.
Definition: sdp_parse.c:1377
sdp_attribute_t * sdp_attribute_remove(sdp_attribute_t **list, char const *name)
Remove a named attribute from a list of attributes.
Definition: sdp.c:1732
sdp_session_t * sdp_session(sdp_parser_t *p)
Retrieve an SDP session structure.
Definition: sdp_parse.c:221
unsigned sdp_media_count(sdp_session_t const *sdp, sdp_media_e type, sdp_text_t *type_name, sdp_proto_e proto, sdp_text_t *proto_name)
Count media lines in SDP.
Definition: sdp.c:1818
char const sdp_text_t
Message text.
Definition: sdp.h:72
isize_t sdp_message_size(sdp_printer_t *p)
Get size of encoded SDP message.
Definition: sdp_print.c:218
sdp_rtpmap_t * sdp_rtpmap_find_matching(sdp_rtpmap_t const *list, sdp_rtpmap_t const *rm)
Search for matching rtpmap from list.
Definition: sdp.c:1895
unsigned sdp_media_count_with(sdp_session_t const *sdp, sdp_media_t const *m0)
Count matching media lines in SDP.
Definition: sdp.c:1835
int sdp_connection_cmp(sdp_connection_t const *, sdp_connection_t const *b)
Compare two connection fields.
Definition: sdp.c:1240
sdp_zone_t * sdp_zone_dup(su_home_t *, sdp_zone_t const *)
Duplicate an SDP timezone structure.
Definition: sdp.c:290
int sdp_attribute_replace(sdp_attribute_t **list, sdp_attribute_t *a, sdp_attribute_t **return_replaced)
Replace a attribute within a list of attributes.
Definition: sdp.c:1695
struct sdp_parser_s sdp_parser_t
SDP parser handle.
Definition: sdp.h:538
int sdp_repeat_cmp(sdp_repeat_t const *a, sdp_repeat_t const *b)
Compare two repeat (r=) fields.
Definition: sdp.c:1307
sdp_attribute_t * sdp_attribute_find2(sdp_attribute_t const *a, sdp_attribute_t const *a2, char const *name)
Find named attribute from given lists.
Definition: sdp.c:1561
int sdp_list_cmp(sdp_list_t const *a, sdp_list_t const *b)
Compare two text lists.
Definition: sdp.c:1440
sdp_bandwidth_t * sdp_bandwidth_dup(su_home_t *, sdp_bandwidth_t const *)
Duplicate an SDP bandwidth structure.
Definition: sdp.c:230
sdp_media_t * sdp_media_dup_all(su_home_t *, sdp_media_t const *, sdp_session_t *)
Duplicate a list of SDP media description structures.
Definition: sdp.c:420
sdp_list_t * sdp_list_dup(su_home_t *, sdp_list_t const *)
Duplicate a list structure.
Definition: sdp.c:350
sdp_parse_flags_e
Flags given to sdp_parse()/sdp_print().
Definition: sdp.h:512
@ sdp_f_all_rtpmaps
Include well-known rtpmaps in message, too.
Definition: sdp.h:520
@ sdp_f_insane
Don't run sanity check.
Definition: sdp.h:526
@ sdp_f_print_prefix
Print buffer already contains a valid prefix.
Definition: sdp.h:522
@ sdp_f_realloc
Reallocate message.
Definition: sdp.h:518
@ sdp_f_strict
Accept only conforming SDP.
Definition: sdp.h:514
@ sdp_f_c_missing
Don't require c= for each media line.
Definition: sdp.h:528
@ sdp_f_mode_0000
Connection line with INADDR_ANY is considered equal to sendonly.
Definition: sdp.h:524
@ sdp_f_mode_manual
Do not generate or parse SDP mode.
Definition: sdp.h:532
@ sdp_f_mode_always
Always generate media-level mode attributes.
Definition: sdp.h:534
@ sdp_f_config
Parse SDP config files.
Definition: sdp.h:530
@ sdp_f_anynet
Accept any network type.
Definition: sdp.h:516
sdp_connection_t * sdp_connection_dup(su_home_t *, sdp_connection_t const *)
Duplicate an SDP connection structure.
Definition: sdp.c:210
int sdp_media_uses_rtp(sdp_media_t const *m)
Return true if media uses RTP.
Definition: sdp.c:1849
int sdp_zone_cmp(sdp_zone_t const *a, sdp_zone_t const *b)
Compare two zone (z=) fields.
Definition: sdp.c:1336
char const * sdp_message(sdp_printer_t *p)
Get encoded SDP message.
Definition: sdp_print.c:201
void sdp_media_transport(sdp_media_t *m, char const *s)
Set transport protocol.
Definition: sdp_parse.c:1408
sdp_addrtype_e
Address type.
Definition: sdp.h:120
@ sdp_addr_ip6
IPv6 address.
Definition: sdp.h:123
@ sdp_addr_x
Unknown address type.
Definition: sdp.h:121
@ sdp_addr_ip4
IPv4 address.
Definition: sdp.h:122
sdp_key_method_e
Mechanism to be used to obtain session key.
Definition: sdp.h:198
@ sdp_key_base64
Key is encoded with base64.
Definition: sdp.h:201
@ sdp_key_clear
Key is included untransformed.
Definition: sdp.h:200
@ sdp_key_uri
URI used to obtain a key.
Definition: sdp.h:202
@ sdp_key_x
Unknown mechanism.
Definition: sdp.h:199
@ sdp_key_prompt
No key is included, prompt user for key.
Definition: sdp.h:203
sdp_bandwidth_e
Bandwdith type.
Definition: sdp.h:142
@ sdp_bw_x
Unknown bandwidth type.
Definition: sdp.h:143
@ sdp_bw_rr
RFC 3556 SDP Bandwidth Modifiers for RTCP.
Definition: sdp.h:148
@ sdp_bw_rs
RFC 3556 SDP Bandwidth Modifiers for RTCP.
Definition: sdp.h:147
@ sdp_bw_ct
Conference total.
Definition: sdp.h:144
@ sdp_bw_tias
Application-specific.
Definition: sdp.h:146
@ sdp_bw_as
Application-specific.
Definition: sdp.h:145
sdp_mode_t sdp_attribute_mode(sdp_attribute_t const *a, sdp_mode_t defmode)
Get session mode from attribute list.
Definition: sdp.c:1580
su_home_t * sdp_parser_home(sdp_parser_t *)
Obtain memory home used by parser.
Definition: sdp_parse.c:201
int sdp_media_cmp(sdp_media_t const *, sdp_media_t const *)
Compare two media (m=) descriptions.
Definition: sdp.c:1457
sdp_attribute_t * sdp_attribute_mapped_find(sdp_attribute_t const *a, char const *name, int pt, char **return_result)
Find a mapped attribute.
Definition: sdp.c:1637
sdp_attribute_t * sdp_attribute_by_mode(su_home_t *, sdp_mode_t mode)
Get session mode from attribute list.
Definition: sdp.c:1597
sdp_proto_e
Media transport protocol.
Definition: sdp.h:243
@ sdp_proto_srtp
RTP/SAVP
Definition: sdp.h:248
@ sdp_proto_udp
Plain UDP.
Definition: sdp.h:246
@ sdp_proto_tls
WEBRTC AVPF.
Definition: sdp.h:254
@ sdp_proto_any
Definition: sdp.h:255
@ sdp_proto_udptl
UDPTL.
Definition: sdp.h:249
@ sdp_proto_extended_rtp
WEBRTC SAVPF.
Definition: sdp.h:253
@ sdp_proto_tcp
TCP
Definition: sdp.h:245
@ sdp_proto_x
Unknown transport
Definition: sdp.h:244
@ sdp_proto_rtp
RTP/AVP.
Definition: sdp.h:247
@ sdp_proto_msrp
TCP/MSRP @NEW_MSRP.
Definition: sdp.h:250
@ sdp_proto_msrps
TCP/TLS/MSRP @NEW_MSRP.
Definition: sdp.h:251
sdp_time_t * sdp_time_dup(su_home_t *, sdp_time_t const *)
Duplicate an SDP time structure.
Definition: sdp.c:250
sdp_rtpmap_t const *const sdp_rtpmap_well_known[128]
Table of rtpmap structures by payload type numbers.
Definition: sdp_parse.c:1492
unsigned long sdp_version_t
SDP version "v=" line.
Definition: sdp.h:47
sdp_origin_t * sdp_origin_dup(su_home_t *, sdp_origin_t const *)
Duplicate an SDP origin structure.
Definition: sdp.c:190
sdp_media_e
Media type.
Definition: sdp.h:226
@ sdp_media_image
Image browsing sessions, e.g., JPIP or T.38.
Definition: sdp.h:235
@ sdp_media_audio
Audio.
Definition: sdp.h:229
@ sdp_media_any
Definition: sdp.h:228
@ sdp_media_data
Bulk data transfer.
Definition: sdp.h:232
@ sdp_media_red
Redundancy.
Definition: sdp.h:237
@ sdp_media_text
Realtime Text.
Definition: sdp.h:238
@ sdp_media_x
Unknown media.
Definition: sdp.h:227
@ sdp_media_video
Video.
Definition: sdp.h:230
@ sdp_media_message
Messaging sessions.
Definition: sdp.h:234
@ sdp_media_application
Conferencing.
Definition: sdp.h:231
@ sdp_media_control
Additional conference control.
Definition: sdp.h:233
int sdp_attribute_cmp(sdp_attribute_t const *, sdp_attribute_t const *)
Compare two attribute (a=) fields.
Definition: sdp.c:1385
char const * sdp_printing_error(sdp_printer_t *p)
Get encoding error.
Definition: sdp_print.c:180
int sdp_time_cmp(sdp_time_t const *a, sdp_time_t const *b)
Compare two time fields.
Definition: sdp.c:1287
Session or media attribute.
Definition: sdp.h:217
sdp_text_t * a_value
Attribute value.
Definition: sdp.h:221
sdp_attribute_t * a_next
Next attribute in list.
Definition: sdp.h:219
sdp_text_t * a_name
Attribute name.
Definition: sdp.h:220
int a_size
sizeof sdp_attribute_t
Definition: sdp.h:218
Session or media bandwidth.
Definition: sdp.h:153
unsigned long b_value
Bandwidth in kilobits per second.
Definition: sdp.h:159
sdp_bandwidth_t * b_next
Next bw description in list.
Definition: sdp.h:155
sdp_text_t * b_modifier_name
Modifier if not well-known.
Definition: sdp.h:158
sdp_bandwidth_e b_modifier
Meaning of value (total, or per application).
Definition: sdp.h:156
int b_size
Size fo sdp_bandwidth_t.
Definition: sdp.h:154
SDP connection - host or group address.
Definition: sdp.h:128
sdp_nettype_e c_nettype
Network type.
Definition: sdp.h:131
sdp_connection_t * c_next
Next connection in list.
Definition: sdp.h:130
unsigned c_mcast
True if multicast.
Definition: sdp.h:135
unsigned c_groups
Number of groups (if multiple)
Definition: sdp.h:137
unsigned c_ttl
Time to live (scope)
Definition: sdp.h:134
int c_size
Size fo sdp_connection_t.
Definition: sdp.h:129
sdp_addrtype_e c_addrtype
Address type.
Definition: sdp.h:132
sdp_text_t * c_address
Host or group address.
Definition: sdp.h:133
Session key.
Definition: sdp.h:209
sdp_text_t * k_method_name
Mechanism if not known
Definition: sdp.h:212
sdp_text_t * k_material
Encryption key
Definition: sdp.h:213
sdp_key_method_e k_method
Mechanism used to obtain key.
Definition: sdp.h:211
int k_size
sizeof sdp_key_t
Definition: sdp.h:210
Text list.
Definition: sdp.h:307
int l_size
sizeof sdp_list_t
Definition: sdp.h:308
sdp_list_t * l_next
Next text entry in list.
Definition: sdp.h:309
sdp_text_t * l_text
Text as C string.
Definition: sdp.h:310
Session description identification.
Definition: sdp.h:103
int o_size
sizeof sdp_origin_t
Definition: sdp.h:104
sdp_text_t * o_username
Username of originator.
Definition: sdp.h:105
uint64_t o_id
Session identification
Definition: sdp.h:106
uint64_t o_version
Version of session description.
Definition: sdp.h:107
sdp_connection_t * o_address
Address of originator.
Definition: sdp.h:108
Description of repetition.
Definition: sdp.h:175
unsigned long r_duration
Duration of activation.
Definition: sdp.h:181
unsigned long r_offsets[1]
List of offsets from start-time.
Definition: sdp.h:182
int r_size
Size of structure including r_offsets[r_number_of_offsets].
Definition: sdp.h:176
int r_number_of_offsets
Number of offsets in list.
Definition: sdp.h:179
unsigned long r_interval
Time between activations.
Definition: sdp.h:180
Mapping from RTP payload to codec.
Definition: sdp.h:322
sdp_text_t * rm_params
Format-specific parameters
Definition: sdp.h:327
sdp_text_t * rm_fmtp
Contents of fmtp.
Definition: sdp.h:328
unsigned rm_any
Wildcard entry.
Definition: sdp.h:331
unsigned rm_pt
Payload type.
Definition: sdp.h:330
sdp_text_t * rm_encoding
Codec name.
Definition: sdp.h:325
unsigned long rm_rate
Sampling rate.
Definition: sdp.h:326
unsigned rm_predef
is this entry well-known?
Definition: sdp.h:329
int rm_size
sizeof sdp_rtpmap_t
Definition: sdp.h:323
sdp_rtpmap_t * rm_next
Next RTP map entry
Definition: sdp.h:324
Session description.
Definition: sdp.h:82
int sdp_size
sizeof sdp_session_t
Definition: sdp.h:83
sdp_text_t * sdp_subject
Session name.
Definition: sdp.h:87
sdp_text_t * sdp_information
Session information
Definition: sdp.h:88
sdp_attribute_t * sdp_attributes
Session attributes.
Definition: sdp.h:96
sdp_media_t * sdp_media
Media descriptors.
Definition: sdp.h:98
sdp_list_t * sdp_emails
E-mail address(s)
Definition: sdp.h:90
sdp_text_t * sdp_uri
URi of description.
Definition: sdp.h:89
sdp_connection_t * sdp_connection
Group (or member) address.
Definition: sdp.h:92
sdp_key_t * sdp_key
Session key.
Definition: sdp.h:95
sdp_text_t * sdp_charset
SDP charset (default is UTF8)
Definition: sdp.h:97
sdp_version_t sdp_version[1]
SDP version.
Definition: sdp.h:85
sdp_session_t * sdp_next
Next description in list.
Definition: sdp.h:84
sdp_origin_t * sdp_origin
Owner/creator and session ID.
Definition: sdp.h:86
sdp_time_t * sdp_time
Session active time.
Definition: sdp.h:94
sdp_list_t * sdp_phones
Phone number(s)
Definition: sdp.h:91
sdp_bandwidth_t * sdp_bandwidths
Session bandwidth.
Definition: sdp.h:93
Active time description.
Definition: sdp.h:164
sdp_zone_t * t_zone
Time Zone infromation.
Definition: sdp.h:170
unsigned long t_stop
Stop time (seconds since 1900)
Definition: sdp.h:168
sdp_time_t * t_next
Next time description in list.
Definition: sdp.h:166
int t_size
sizeof sdp_time_t in bytes
Definition: sdp.h:165
sdp_repeat_t * t_repeat
Repeat information.
Definition: sdp.h:169
unsigned long t_start
Start time (seconds since 1900)
Definition: sdp.h:167
Timezone.
Definition: sdp.h:187
int z_size
Size of structure including z_adjustments[z_number_of_adjustments].
Definition: sdp.h:189
long z_offset
Adjustment offset
Definition: sdp.h:193
struct sdp_zone_s::@1 z_adjustments[1]
List of timezone adjustments.
int z_number_of_adjustments
Number of adjustments in list
Definition: sdp.h:190
unsigned long z_at
Adjustment time
Definition: sdp.h:192