diff options
Diffstat (limited to 'media/webrtc/signaling/src/sdp/sipcc/sdp.h')
| -rw-r--r-- | media/webrtc/signaling/src/sdp/sipcc/sdp.h | 1794 |
1 files changed, 1794 insertions, 0 deletions
diff --git a/media/webrtc/signaling/src/sdp/sipcc/sdp.h b/media/webrtc/signaling/src/sdp/sipcc/sdp.h new file mode 100644 index 000000000..9bd2ce132 --- /dev/null +++ b/media/webrtc/signaling/src/sdp/sipcc/sdp.h @@ -0,0 +1,1794 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef _SIPCC_SDP_H_ +#define _SIPCC_SDP_H_ + +#include "sdp_os_defs.h" +#include "ccsdp.h" + +/* SDP Defines */ + +/* The following defines are used to indicate params that are specified + * as the choose parameter or parameters that are invalid. These can + * be used where the value required is really a uint16_t, but is represented + * by an int32_t. + */ +#define SDP_CHOOSE_PARAM (-1) +#define SDP_SESSION_LEVEL 0xFFFF + +#define UNKNOWN_CRYPTO_SUITE "UNKNOWN_CRYPTO_SUITE" +#define AES_CM_128_HMAC_SHA1_32 "AES_CM_128_HMAC_SHA1_32" +#define AES_CM_128_HMAC_SHA1_80 "AES_CM_128_HMAC_SHA1_80" +#define F8_128_HMAC_SHA1_80 "F8_128_HMAC_SHA1_80" + +/* Pulled in from rtp_defs.h. */ +#define GET_DYN_PAYLOAD_TYPE_VALUE(a) ((a & 0XFF00) ? ((a & 0XFF00) >> 8) : a) +#define SET_PAYLOAD_TYPE_WITH_DYNAMIC(a,b) ((a << 8) | b) + +/* + * SDP_SRTP_MAX_KEY_SIZE_BYTES + * Maximum size for a SRTP Master Key in bytes. + */ +#define SDP_SRTP_MAX_KEY_SIZE_BYTES 16 +/* + * SDP_SRTP_MAX_SALT_SIZE_BYTES + * Maximum size for a SRTP Master Salt in bytes. + */ +#define SDP_SRTP_MAX_SALT_SIZE_BYTES 14 +/* + * SDP_SRTP_MAX_MKI_SIZE_BYTES + * Maximum size for a SRTP Master Key Index in bytes. + */ +#define SDP_SRTP_MAX_MKI_SIZE_BYTES 4 + +/* Max number of characters for Lifetime */ +#define SDP_SRTP_MAX_LIFETIME_BYTES 16 + +#define SDP_SDESCRIPTIONS_KEY_SIZE_UNKNOWN 0 +#define SDP_SRTP_CRYPTO_SELECTION_FLAGS_UNKNOWN 0 + +/* Max number of fmtp redundant encodings */ +#define SDP_FMTP_MAX_REDUNDANT_ENCODINGS 128 + +/* + * SRTP_CONTEXT_SET_* + * Set a SRTP Context field flag + */ +#define SDP_SRTP_ENCRYPT_MASK 0x00000001 +#define SDP_SRTP_AUTHENTICATE_MASK 0x00000002 +#define SDP_SRTCP_ENCRYPT_MASK 0x00000004 +#define SDP_SRTCP_SSRC_MASK 0x20000000 +#define SDP_SRTCP_ROC_MASK 0x10000000 +#define SDP_SRTCP_KDR_MASK 0x08000000 +#define SDP_SRTCP_KEY_MASK 0x80000000 +#define SDP_SRTCP_SALT_MASK 0x40000000 + +#define SDP_SRTP_CONTEXT_SET_SSRC(cw) ((cw) |= SDP_SRTCP_SSRC_MASK) +#define SDP_SRTP_CONTEXT_SET_ROC(cw) ((cw) |= SDP_SRTCP_ROC_MASK) +#define SDP_SRTP_CONTEXT_SET_KDR(cw) ((cw) |= SDP_SRTCP_KDR_MASK) +#define SDP_SRTP_CONTEXT_SET_MASTER_KEY(cw) ((cw) |= SDP_SRTCP_KEY_MASK) +#define SDP_SRTP_CONTEXT_SET_MASTER_SALT(cw) ((cw) |= SDP_SRTCP_SALT_MASK) +#define SDP_SRTP_CONTEXT_SET_ENCRYPT_AUTHENTICATE(cw) \ + ((cw) |= (SDP_SRTP_ENCRYPT_MASK | SDP_SRTP_AUTHENTICATE_MASK | \ + SDP_SRTCP_ENCRYPT_MASK)) +#define SDP_SRTP_CONTEXT_RESET_SSRC(cw) ((cw) &= ~(SDP_SRTCP_SSRC_MASK)) +#define SDP_SRTP_CONTEXT_RESET_ROC(cw) ((cw) &= ~(SDP_SRTCP_ROC_MASK)) +#define SDP_SRTP_CONTEXT_RESET_KDR(cw) ((cw) &= ~(SDP_SRTCP_KDR_MASK)) +#define SDP_CONTEXT_RESET_MASTER_KEY(cw) ((cw) &= ~(SDP_SRTCP_KEY_MASK)) +#define SDP_CONTEXT_RESET_MASTER_SALT(cw) ((cw) &= ~(SDP_SRTCP_SALT_MASK)) +#define SDP_EXTMAP_AUDIO_LEVEL "urn:ietf:params:rtp-hdrext:ssrc-audio-level" + +/* SDP Enum Types */ +typedef enum { + SDP_DEBUG_TRACE, + SDP_DEBUG_WARNINGS, + SDP_DEBUG_ERRORS, + SDP_MAX_DEBUG_TYPES +} sdp_debug_e; + +typedef enum { + SDP_CHOOSE_CONN_ADDR, + SDP_CHOOSE_PORTNUM, + SDP_MAX_CHOOSE_PARAMS +} sdp_choose_param_e; + + +/* Token Lines - these must be in the same order they should + * appear in an SDP. + */ +typedef enum { + SDP_TOKEN_V = 0, + SDP_TOKEN_O, + SDP_TOKEN_S, + SDP_TOKEN_I, + SDP_TOKEN_U, + SDP_TOKEN_E, + SDP_TOKEN_P, + SDP_TOKEN_C, + SDP_TOKEN_B, + SDP_TOKEN_T, + SDP_TOKEN_R, + SDP_TOKEN_Z, + SDP_TOKEN_K, + SDP_TOKEN_A, + SDP_TOKEN_M, + SDP_MAX_TOKENS +} sdp_token_e; + +/* Media Types */ +typedef enum { + SDP_MEDIA_AUDIO = 0, + SDP_MEDIA_VIDEO, + SDP_MEDIA_APPLICATION, + SDP_MEDIA_DATA, + SDP_MEDIA_CONTROL, + SDP_MEDIA_NAS_RADIUS, + SDP_MEDIA_NAS_TACACS, + SDP_MEDIA_NAS_DIAMETER, + SDP_MEDIA_NAS_L2TP, + SDP_MEDIA_NAS_LOGIN, + SDP_MEDIA_NAS_NONE, + SDP_MEDIA_TEXT, + SDP_MEDIA_IMAGE, + SDP_MAX_MEDIA_TYPES, + SDP_MEDIA_UNSUPPORTED, + SDP_MEDIA_INVALID +} sdp_media_e; + + +/* Connection Network Type */ +typedef enum { + SDP_NT_INTERNET = 0, /* 0 -> IP - In SDP "IN" is defined */ + /* to mean "Internet" */ + SDP_NT_ATM, /* 1 -> ATM */ + SDP_NT_FR, /* 2 -> FRAME RELAY */ + SDP_NT_LOCAL, /* 3 -> local */ + SDP_MAX_NETWORK_TYPES, + SDP_NT_UNSUPPORTED, + SDP_NT_INVALID +} sdp_nettype_e; + + +/* Address Type */ +typedef enum { + SDP_AT_IP4 = 0, /* 0 -> IP Version 4 (IP4) */ + SDP_AT_IP6, /* 1 -> IP Version 6 (IP6) */ + SDP_AT_NSAP, /* 2 -> 20 byte NSAP address */ + SDP_AT_EPN, /* 3 -> 32 bytes of endpoint name */ + SDP_AT_E164, /* 4 -> 15 digit decimal number addr */ + SDP_AT_GWID, /* 5 -> Private gw id. ASCII string */ + SDP_MAX_ADDR_TYPES, + SDP_AT_UNSUPPORTED, + SDP_AT_FQDN, + SDP_AT_INVALID +} sdp_addrtype_e; + + +/* Transport Types */ + +#define SDP_MAX_PROFILES 3 + +typedef enum { + SDP_TRANSPORT_RTPAVP = 0, + SDP_TRANSPORT_UDP, + SDP_TRANSPORT_UDPTL, + SDP_TRANSPORT_CES10, + SDP_TRANSPORT_LOCAL, + SDP_TRANSPORT_AAL2_ITU, + SDP_TRANSPORT_AAL2_ATMF, + SDP_TRANSPORT_AAL2_CUSTOM, + SDP_TRANSPORT_AAL1AVP, + SDP_TRANSPORT_UDPSPRT, + SDP_TRANSPORT_RTPSAVP, + SDP_TRANSPORT_TCP, + SDP_TRANSPORT_RTPSAVPF, + SDP_TRANSPORT_DTLSSCTP, + SDP_TRANSPORT_RTPAVPF, + SDP_TRANSPORT_UDPTLSRTPSAVP, + SDP_TRANSPORT_UDPTLSRTPSAVPF, + SDP_TRANSPORT_TCPTLSRTPSAVP, + SDP_TRANSPORT_TCPTLSRTPSAVPF, + SDP_MAX_TRANSPORT_TYPES, + SDP_TRANSPORT_UNSUPPORTED, + SDP_TRANSPORT_INVALID +} sdp_transport_e; + + +/* Encryption KeyType */ +typedef enum { + SDP_ENCRYPT_CLEAR, /* 0 -> Key given in the clear */ + SDP_ENCRYPT_BASE64, /* 1 -> Base64 encoded key */ + SDP_ENCRYPT_URI, /* 2 -> Ptr to URI */ + SDP_ENCRYPT_PROMPT, /* 3 -> No key included, prompt user */ + SDP_MAX_ENCRYPT_TYPES, + SDP_ENCRYPT_UNSUPPORTED, + SDP_ENCRYPT_INVALID +} sdp_encrypt_type_e; + + +/* Known string payload types */ +typedef enum { + SDP_PAYLOAD_T38, + SDP_PAYLOAD_XTMR, + SDP_PAYLOAD_T120, + SDP_MAX_STRING_PAYLOAD_TYPES, + SDP_PAYLOAD_UNSUPPORTED, + SDP_PAYLOAD_INVALID +} sdp_payload_e; + + +/* Payload type indicator */ +typedef enum { + SDP_PAYLOAD_NUMERIC, + SDP_PAYLOAD_ENUM +} sdp_payload_ind_e; + + +/* Image payload types */ +typedef enum { + SDP_PORT_NUM_ONLY, /* <port> or '$' */ + SDP_PORT_NUM_COUNT, /* <port>/<number of ports> */ + SDP_PORT_VPI_VCI, /* <vpi>/<vci> */ + SDP_PORT_VCCI, /* <vcci> */ + SDP_PORT_NUM_VPI_VCI, /* <port>/<vpi>/<vci> */ + SDP_PORT_VCCI_CID, /* <vcci>/<cid> or '$'/'$' */ + SDP_PORT_NUM_VPI_VCI_CID, /* <port>/<vpi>/<vci>/<cid> */ + SDP_MAX_PORT_FORMAT_TYPES, + SDP_PORT_FORMAT_INVALID +} sdp_port_format_e; + + +/* Fmtp attribute format Types */ +typedef enum { + SDP_FMTP_NTE, + SDP_FMTP_CODEC_INFO, + SDP_FMTP_MODE, + SDP_FMTP_DATACHANNEL, + SDP_FMTP_UNKNOWN_TYPE, + SDP_FMTP_MAX_TYPE +} sdp_fmtp_format_type_e; + + +/* T.38 Rate Mgmt Types */ +typedef enum { + SDP_T38_LOCAL_TCF, + SDP_T38_TRANSFERRED_TCF, + SDP_T38_UNKNOWN_RATE, + SDP_T38_MAX_RATES +} sdp_t38_ratemgmt_e; + + +/* T.38 udp EC Types */ +typedef enum { + SDP_T38_UDP_REDUNDANCY, + SDP_T38_UDP_FEC, + SDP_T38_UDPEC_UNKNOWN, + SDP_T38_MAX_UDPEC +} sdp_t38_udpec_e; + +/* Bitmaps for manipulating sdp_direction_e */ +typedef enum { + SDP_DIRECTION_FLAG_SEND=0x01, + SDP_DIRECTION_FLAG_RECV=0x02 +} sdp_direction_flag_e; + +/* Media flow direction */ +typedef enum { + SDP_DIRECTION_INACTIVE = 0, + SDP_DIRECTION_SENDONLY = SDP_DIRECTION_FLAG_SEND, + SDP_DIRECTION_RECVONLY = SDP_DIRECTION_FLAG_RECV, + SDP_DIRECTION_SENDRECV = SDP_DIRECTION_FLAG_SEND | SDP_DIRECTION_FLAG_RECV, + SDP_MAX_QOS_DIRECTIONS +} sdp_direction_e; + +#define SDP_DIRECTION_PRINT(arg) \ + (((sdp_direction_e)(arg)) == SDP_DIRECTION_INACTIVE ? "SDP_DIRECTION_INACTIVE " : \ + ((sdp_direction_e)(arg)) == SDP_DIRECTION_SENDONLY ? "SDP_DIRECTION_SENDONLY": \ + ((sdp_direction_e)(arg)) == SDP_DIRECTION_RECVONLY ? "SDP_DIRECTION_RECVONLY ": \ + ((sdp_direction_e)(arg)) == SDP_DIRECTION_SENDRECV ? " SDP_DIRECTION_SENDRECV": "SDP_MAX_QOS_DIRECTIONS") + + +/* QOS Strength tag */ +typedef enum { + SDP_QOS_STRENGTH_OPT, + SDP_QOS_STRENGTH_MAND, + SDP_QOS_STRENGTH_SUCC, + SDP_QOS_STRENGTH_FAIL, + SDP_QOS_STRENGTH_NONE, + SDP_MAX_QOS_STRENGTH, + SDP_QOS_STRENGTH_UNKNOWN +} sdp_qos_strength_e; + + +/* QOS direction */ +typedef enum { + SDP_QOS_DIR_SEND, + SDP_QOS_DIR_RECV, + SDP_QOS_DIR_SENDRECV, + SDP_QOS_DIR_NONE, + SDP_MAX_QOS_DIR, + SDP_QOS_DIR_UNKNOWN +} sdp_qos_dir_e; + +/* QoS Status types */ +typedef enum { + SDP_QOS_LOCAL, + SDP_QOS_REMOTE, + SDP_QOS_E2E, + SDP_MAX_QOS_STATUS_TYPES, + SDP_QOS_STATUS_TYPE_UNKNOWN +} sdp_qos_status_types_e; + +/* QoS Status types */ +typedef enum { + SDP_CURR_QOS_TYPE, + SDP_CURR_UNKNOWN_TYPE, + SDP_MAX_CURR_TYPES +} sdp_curr_type_e; + +/* QoS Status types */ +typedef enum { + SDP_DES_QOS_TYPE, + SDP_DES_UNKNOWN_TYPE, + SDP_MAX_DES_TYPES +} sdp_des_type_e; + +/* QoS Status types */ +typedef enum { + SDP_CONF_QOS_TYPE, + SDP_CONF_UNKNOWN_TYPE, + SDP_MAX_CONF_TYPES +} sdp_conf_type_e; + + +/* Named event range result values. */ +typedef enum { + SDP_NO_MATCH, + SDP_PARTIAL_MATCH, + SDP_FULL_MATCH +} sdp_ne_res_e; + +/* Fmtp attribute parameters for audio/video codec information */ +typedef enum { + + /* mainly for audio codecs */ + SDP_ANNEX_A, /* 0 */ + SDP_ANNEX_B, + SDP_BITRATE, + + /* for video codecs */ + SDP_QCIF, + SDP_CIF, + SDP_MAXBR, + SDP_SQCIF, + SDP_CIF4, + SDP_CIF16, + SDP_CUSTOM, + SDP_PAR, + SDP_CPCF, + SDP_BPP, + SDP_HRD, + SDP_PROFILE, + SDP_LEVEL, + SDP_INTERLACE, + + /* H.264 related */ + SDP_PROFILE_LEVEL_ID, /* 17 */ + SDP_PARAMETER_SETS, + SDP_PACKETIZATION_MODE, + SDP_INTERLEAVING_DEPTH, + SDP_DEINT_BUF_REQ, + SDP_MAX_DON_DIFF, + SDP_INIT_BUF_TIME, + + SDP_MAX_MBPS, + SDP_MAX_FS, + SDP_MAX_CPB, + SDP_MAX_DPB, + SDP_MAX_BR, + SDP_REDUNDANT_PIC_CAP, + SDP_DEINT_BUF_CAP, + SDP_MAX_RCMD_NALU_SIZE, + + SDP_PARAMETER_ADD, + + /* Annexes - begin */ + /* Some require special handling as they don't have token=token format*/ + SDP_ANNEX_D, + SDP_ANNEX_F, + SDP_ANNEX_I, + SDP_ANNEX_J, + SDP_ANNEX_T, + + /* These annexes have token=token format */ + SDP_ANNEX_K, + SDP_ANNEX_N, + SDP_ANNEX_P, + + SDP_MODE, + SDP_LEVEL_ASYMMETRY_ALLOWED, + SDP_MAX_AVERAGE_BIT_RATE, + SDP_USED_TX, + SDP_STEREO, + SDP_USE_IN_BAND_FEC, + SDP_MAX_CODED_AUDIO_BW, + SDP_CBR, + SDP_MAX_FR, + SDP_MAX_PLAYBACK_RATE, + SDP_MAX_FMTP_PARAM, + SDP_FMTP_PARAM_UNKNOWN +} sdp_fmtp_codec_param_e; + +/* Fmtp attribute parameters values for + fmtp attribute parameters which convey codec + information */ + +typedef enum { + SDP_YES, + SDP_NO, + SDP_MAX_FMTP_PARAM_VAL, + SDP_FMTP_PARAM_UNKNOWN_VAL +} sdp_fmtp_codec_param_val_e; + +/* silenceSupp suppPref */ +typedef enum { + SDP_SILENCESUPP_PREF_STANDARD, + SDP_SILENCESUPP_PREF_CUSTOM, + SDP_SILENCESUPP_PREF_NULL, /* "-" */ + SDP_MAX_SILENCESUPP_PREF, + SDP_SILENCESUPP_PREF_UNKNOWN +} sdp_silencesupp_pref_e; + +/* silenceSupp sidUse */ +typedef enum { + SDP_SILENCESUPP_SIDUSE_NOSID, + SDP_SILENCESUPP_SIDUSE_FIXED, + SDP_SILENCESUPP_SIDUSE_SAMPLED, + SDP_SILENCESUPP_SIDUSE_NULL, /* "-" */ + SDP_MAX_SILENCESUPP_SIDUSE, + SDP_SILENCESUPP_SIDUSE_UNKNOWN +} sdp_silencesupp_siduse_e; + +typedef enum { + SDP_MEDIADIR_ROLE_PASSIVE, + SDP_MEDIADIR_ROLE_ACTIVE, + SDP_MEDIADIR_ROLE_BOTH, + SDP_MEDIADIR_ROLE_REUSE, + SDP_MEDIADIR_ROLE_UNKNOWN, + SDP_MAX_MEDIADIR_ROLES, + SDP_MEDIADIR_ROLE_UNSUPPORTED, + SDP_MEDIADIR_ROLE_INVALID +} sdp_mediadir_role_e; + +typedef enum { + SDP_GROUP_ATTR_FID, + SDP_GROUP_ATTR_LS, + SDP_GROUP_ATTR_ANAT, + SDP_GROUP_ATTR_BUNDLE, + SDP_MAX_GROUP_ATTR_VAL, + SDP_GROUP_ATTR_UNSUPPORTED +} sdp_group_attr_e; + +typedef enum { + SDP_SRC_FILTER_INCL, + SDP_SRC_FILTER_EXCL, + SDP_MAX_FILTER_MODE, + SDP_FILTER_MODE_NOT_PRESENT +} sdp_src_filter_mode_e; + +typedef enum { + SDP_RTCP_UNICAST_MODE_REFLECTION, + SDP_RTCP_UNICAST_MODE_RSI, + SDP_RTCP_MAX_UNICAST_MODE, + SDP_RTCP_UNICAST_MODE_NOT_PRESENT +} sdp_rtcp_unicast_mode_e; + +typedef enum { + SDP_CONNECTION_NOT_FOUND = -1, + SDP_CONNECTION_NEW = 0, + SDP_CONNECTION_EXISTING, + SDP_MAX_CONNECTION, + SDP_CONNECTION_UNKNOWN +} sdp_connection_type_e; + +/* + * sdp_srtp_fec_order_t + * This type defines the order in which to perform FEC + * (Forward Error Correction) and SRTP Encryption/Authentication. + */ +typedef enum sdp_srtp_fec_order_t_ { + SDP_SRTP_THEN_FEC, /* upon sending perform SRTP then FEC */ + SDP_FEC_THEN_SRTP, /* upon sending perform FEC then SRTP */ + SDP_SRTP_FEC_SPLIT /* upon sending perform SRTP Encryption, + * then FEC, the SRTP Authentication */ +} sdp_srtp_fec_order_t; + + +/* + * sdp_srtp_crypto_suite_t + * Enumeration of the crypto suites supported for MGCP SRTP + * package. + */ +typedef enum sdp_srtp_crypto_suite_t_ { + SDP_SRTP_UNKNOWN_CRYPTO_SUITE = 0, + SDP_SRTP_AES_CM_128_HMAC_SHA1_32, + SDP_SRTP_AES_CM_128_HMAC_SHA1_80, + SDP_SRTP_F8_128_HMAC_SHA1_80, + SDP_SRTP_MAX_NUM_CRYPTO_SUITES +} sdp_srtp_crypto_suite_t; + +/* + * SDP SRTP crypto suite definition parameters + * + * SDP_SRTP_<crypto_suite>_KEY_BYTES + * The size of a master key for <crypto_suite> in bytes. + * + * SDP_SRTP_<crypto_suite>_SALT_BYTES + * The size of a master salt for <crypto_suite> in bytes. + */ +#define SDP_SRTP_AES_CM_128_HMAC_SHA1_32_KEY_BYTES 16 +#define SDP_SRTP_AES_CM_128_HMAC_SHA1_32_SALT_BYTES 14 +#define SDP_SRTP_AES_CM_128_HMAC_SHA1_80_KEY_BYTES 16 +#define SDP_SRTP_AES_CM_128_HMAC_SHA1_80_SALT_BYTES 14 +#define SDP_SRTP_F8_128_HMAC_SHA1_80_KEY_BYTES 16 +#define SDP_SRTP_F8_128_HMAC_SHA1_80_SALT_BYTES 14 + +/* SDP Defines */ + +#define SDP_MAX_LONG_STRING_LEN 4096 /* Max len for long SDP strings */ +#define SDP_MAX_STRING_LEN 256 /* Max len for SDP string */ +#define SDP_MAX_SHORT_STRING_LEN 12 /* Max len for a short SDP string */ +#define SDP_MAX_PAYLOAD_TYPES 23 /* Max payload types in m= line */ +#define SDP_TOKEN_LEN 2 /* Len of <token>= */ +#define SDP_CURRENT_VERSION 0 /* Current default SDP version */ +#define SDP_MAX_PORT_PARAMS 4 /* Max m= port params - x/x/x/x */ +#define SDP_MIN_DYNAMIC_PAYLOAD 96 /* Min dynamic payload */ +#define SDP_MAX_DYNAMIC_PAYLOAD 127 /* Max dynamic payload */ +#define SDP_MIN_CIF_VALUE 1 /* applies to all QCIF,CIF,CIF4,CIF16,SQCIF */ +#define SDP_MAX_CIF_VALUE 32 /* applies to all QCIF,CIF,CIF4,CIF16,SQCIF */ +#define SDP_MAX_SRC_ADDR_LIST 1 /* Max source addrs for which filter applies */ + + +#define SDP_DEFAULT_PACKETIZATION_MODE_VALUE 0 /* max packetization mode for H.264 */ +#define SDP_MAX_PACKETIZATION_MODE_VALUE 2 /* max packetization mode for H.264 */ +#define SDP_INVALID_PACKETIZATION_MODE_VALUE 255 + +#define SDP_MAX_LEVEL_ASYMMETRY_ALLOWED_VALUE 1 /* max level asymmetry allowed value for H.264 */ +#define SDP_DEFAULT_LEVEL_ASYMMETRY_ALLOWED_VALUE 0 /* default level asymmetry allowed value for H.264 */ +#define SDP_INVALID_LEVEL_ASYMMETRY_ALLOWED_VALUE 2 /* invalid value for level-asymmetry-allowed param for H.264 */ + + +/* Max number of stream ids that can be grouped together */ +#define SDP_MAX_MEDIA_STREAMS 32 + +#define SDP_UNSUPPORTED "Unsupported" +#define SDP_MAX_LINE_LEN 256 /* Max len for SDP Line */ + +#define SDP_MAX_PROFILE_VALUE 10 +#define SDP_MAX_LEVEL_VALUE 100 +#define SDP_MIN_PROFILE_LEVEL_VALUE 0 +#define SDP_MAX_TTL_VALUE 255 +#define SDP_MIN_MCAST_ADDR_HI_BIT_VAL 224 +#define SDP_MAX_MCAST_ADDR_HI_BIT_VAL 239 + +/* SDP Enum Types */ + +typedef enum { + SDP_ERR_INVALID_CONF_PTR, + SDP_ERR_INVALID_SDP_PTR, + SDP_ERR_INTERNAL, + SDP_MAX_ERR_TYPES +} sdp_errmsg_e; + +/* SDP Structure Definitions */ + +/* String names of varios tokens */ +typedef struct { + char *name; + uint8_t strlen; +} sdp_namearray_t; + +/* c= line info */ +typedef struct { + sdp_nettype_e nettype; + sdp_addrtype_e addrtype; + char conn_addr[SDP_MAX_STRING_LEN+1]; + tinybool is_multicast; + uint16_t ttl; + uint16_t num_of_addresses; +} sdp_conn_t; + +/* t= line info */ +typedef struct sdp_timespec { + char start_time[SDP_MAX_STRING_LEN+1]; + char stop_time[SDP_MAX_STRING_LEN+1]; + struct sdp_timespec *next_p; +} sdp_timespec_t; + + +/* k= line info */ +typedef struct sdp_encryptspec { + sdp_encrypt_type_e encrypt_type; + char encrypt_key[SDP_MAX_STRING_LEN+1]; +} sdp_encryptspec_t; + + +/* FMTP attribute deals with named events in the range of 0-255 as + * defined in RFC 2833 */ +#define SDP_MIN_NE_VALUE 0 +#define SDP_MAX_NE_VALUES 256 +#define SDP_NE_BITS_PER_WORD ( sizeof(uint32_t) * 8 ) +#define SDP_NE_NUM_BMAP_WORDS ((SDP_MAX_NE_VALUES + SDP_NE_BITS_PER_WORD - 1)/SDP_NE_BITS_PER_WORD ) +#define SDP_NE_BIT_0 ( 0x00000001 ) +#define SDP_NE_ALL_BITS ( 0xFFFFFFFF ) + +#define SDP_DEINT_BUF_REQ_FLAG 0x1 +#define SDP_INIT_BUF_TIME_FLAG 0x2 +#define SDP_MAX_RCMD_NALU_SIZE_FLAG 0x4 +#define SDP_DEINT_BUF_CAP_FLAG 0x8 + +#define SDP_FMTP_UNUSED 0xFFFF + +typedef struct sdp_fmtp { + uint16_t payload_num; + uint32_t maxval; /* maxval optimizes bmap search */ + uint32_t bmap[ SDP_NE_NUM_BMAP_WORDS ]; + sdp_fmtp_format_type_e fmtp_format; /* Gives the format type + for FMTP attribute*/ + tinybool annexb_required; + tinybool annexa_required; + + tinybool annexa; + tinybool annexb; + uint32_t bitrate; + uint32_t mode; + + /* some OPUS specific fmtp params */ + uint32_t maxplaybackrate; + uint32_t maxaveragebitrate; + uint16_t usedtx; + uint16_t stereo; + uint16_t useinbandfec; + char maxcodedaudiobandwidth[SDP_MAX_STRING_LEN+1]; + uint16_t cbr; + + /* BEGIN - All Video related FMTP parameters */ + uint16_t qcif; + uint16_t cif; + uint16_t maxbr; + uint16_t sqcif; + uint16_t cif4; + uint16_t cif16; + + uint16_t custom_x; + uint16_t custom_y; + uint16_t custom_mpi; + /* CUSTOM=360,240,4 implies X-AXIS=360, Y-AXIS=240; MPI=4 */ + uint16_t par_width; + uint16_t par_height; + /* PAR=12:11 implies par_width=12, par_height=11 */ + + /* CPCF should be a float. IOS does not support float and so it is uint16_t */ + /* For portable stack, CPCF should be defined as float and the parsing should + * be modified accordingly */ + uint16_t cpcf; + uint16_t bpp; + uint16_t hrd; + + int16_t profile; + int16_t level; + tinybool is_interlace; + + /* some more H.264 specific fmtp params */ + char profile_level_id[SDP_MAX_STRING_LEN+1]; + char parameter_sets[SDP_MAX_STRING_LEN+1]; + uint16_t packetization_mode; + uint16_t level_asymmetry_allowed; + uint16_t interleaving_depth; + uint32_t deint_buf_req; + uint32_t max_don_diff; + uint32_t init_buf_time; + + uint32_t max_mbps; + uint32_t max_fs; + uint32_t max_fr; + uint32_t max_cpb; + uint32_t max_dpb; + uint32_t max_br; + tinybool redundant_pic_cap; + uint32_t deint_buf_cap; + uint32_t max_rcmd_nalu_size; + uint16_t parameter_add; + + tinybool annex_d; + + tinybool annex_f; + tinybool annex_i; + tinybool annex_j; + tinybool annex_t; + + /* H.263 codec requires annex K,N and P to have values */ + uint16_t annex_k_val; + uint16_t annex_n_val; + + /* RFC 5109 Section 4.2 for specifying redundant encodings */ + uint8_t redundant_encodings[SDP_FMTP_MAX_REDUNDANT_ENCODINGS]; + + /* RFC 2833 Section 3.9 (4733) for specifying support DTMF tones: + The list of values consists of comma-separated elements, which + can be either a single decimal number or two decimal numbers + separated by a hyphen (dash), where the second number is larger + than the first. No whitespace is allowed between numbers or + hyphens. The list does not have to be sorted. + */ + char dtmf_tones[SDP_MAX_STRING_LEN+1]; + + /* Annex P can take one or more values in the range 1-4 . e.g P=1,3 */ + uint16_t annex_p_val_picture_resize; /* 1 = four; 2 = sixteenth */ + uint16_t annex_p_val_warp; /* 3 = half; 4=sixteenth */ + + uint8_t flag; + + /* END - All Video related FMTP parameters */ + +} sdp_fmtp_t; + +/* a=sctpmap line used for Datachannels */ +typedef struct sdp_sctpmap { + uint16_t port; + uint32_t streams; /* Num streams per Datachannel */ + char protocol[SDP_MAX_STRING_LEN+1]; +} sdp_sctpmap_t; + +#define SDP_MAX_MSID_LEN 64 + +typedef struct sdp_msid { + char identifier[SDP_MAX_MSID_LEN+1]; + char appdata[SDP_MAX_MSID_LEN+1]; +} sdp_msid_t; + +/* a=qos|secure|X-pc-qos|X-qos info */ +typedef struct sdp_qos { + sdp_qos_strength_e strength; + sdp_qos_dir_e direction; + tinybool confirm; + sdp_qos_status_types_e status_type; +} sdp_qos_t; + +/* a=curr:qos status_type direction */ +typedef struct sdp_curr { + sdp_curr_type_e type; + sdp_qos_status_types_e status_type; + sdp_qos_dir_e direction; +} sdp_curr_t; + +/* a=des:qos strength status_type direction */ +typedef struct sdp_des { + sdp_des_type_e type; + sdp_qos_strength_e strength; + sdp_qos_status_types_e status_type; + sdp_qos_dir_e direction; +} sdp_des_t; + +/* a=conf:qos status_type direction */ +typedef struct sdp_conf { + sdp_conf_type_e type; + sdp_qos_status_types_e status_type; + sdp_qos_dir_e direction; +} sdp_conf_t; + + +/* a=rtpmap or a=sprtmap info */ +typedef struct sdp_transport_map { + uint16_t payload_num; + char encname[SDP_MAX_STRING_LEN+1]; + uint32_t clockrate; + uint16_t num_chan; +} sdp_transport_map_t; + + +/* a=rtr info */ +typedef struct sdp_rtr { + tinybool confirm; +} sdp_rtr_t; + +/* a=subnet info */ +typedef struct sdp_subnet { + sdp_nettype_e nettype; + sdp_addrtype_e addrtype; + char addr[SDP_MAX_STRING_LEN+1]; + int32_t prefix; +} sdp_subnet_t; + + +/* a=X-pc-codec info */ +typedef struct sdp_pccodec { + uint16_t num_payloads; + ushort payload_type[SDP_MAX_PAYLOAD_TYPES]; +} sdp_pccodec_t; + +/* a=direction info */ +typedef struct sdp_comediadir { + sdp_mediadir_role_e role; + tinybool conn_info_present; + sdp_conn_t conn_info; + uint32_t src_port; +} sdp_comediadir_t; + + + +/* a=silenceSupp info */ +typedef struct sdp_silencesupp { + tinybool enabled; + tinybool timer_null; + uint16_t timer; + sdp_silencesupp_pref_e pref; + sdp_silencesupp_siduse_e siduse; + tinybool fxnslevel_null; + uint8_t fxnslevel; +} sdp_silencesupp_t; + + +/* + * a=mptime info */ +/* Note that an interval value of zero corresponds to + * the "-" syntax on the a= line. + */ +typedef struct sdp_mptime { + uint16_t num_intervals; + ushort intervals[SDP_MAX_PAYLOAD_TYPES]; +} sdp_mptime_t; + +/* + * a=X-sidin:<val>, a=X-sidout:< val> and a=X-confid: <val> + * Stream Id,ConfID related attributes to be used for audio/video conferencing + * +*/ + +typedef struct sdp_stream_data { + char x_sidin[SDP_MAX_STRING_LEN+1]; + char x_sidout[SDP_MAX_STRING_LEN+1]; + char x_confid[SDP_MAX_STRING_LEN+1]; + sdp_group_attr_e group_attr; /* FID or LS */ + uint16_t num_group_id; + char * group_ids[SDP_MAX_MEDIA_STREAMS]; +} sdp_stream_data_t; + +typedef struct sdp_msid_semantic { + char semantic[SDP_MAX_STRING_LEN+1]; + char * msids[SDP_MAX_MEDIA_STREAMS]; +} sdp_msid_semantic_t; + +/* + * a=source-filter:<filter-mode> <filter-spec> + * <filter-spec> = <nettype> <addrtype> <dest-addr> <src_addr><src_addr>... + * One or more source addresses to apply filter, for one or more connection + * address in unicast/multicast environments + */ +typedef struct sdp_source_filter { + sdp_src_filter_mode_e mode; + sdp_nettype_e nettype; + sdp_addrtype_e addrtype; + char dest_addr[SDP_MAX_STRING_LEN+1]; + uint16_t num_src_addr; + char src_list[SDP_MAX_SRC_ADDR_LIST+1][SDP_MAX_STRING_LEN+1]; +} sdp_source_filter_t; + +/* + * a=rtcp-fb:<payload-type> <feedback-type> [<feedback-parameters>] + * Defines RTCP feedback parameters + */ +#define SDP_ALL_PAYLOADS 0xFFFF +typedef struct sdp_fmtp_fb { + uint16_t payload_num; /* can be SDP_ALL_PAYLOADS */ + sdp_rtcp_fb_type_e feedback_type; + union { + sdp_rtcp_fb_ack_type_e ack; + sdp_rtcp_fb_ccm_type_e ccm; + sdp_rtcp_fb_nack_type_e nack; + uint32_t trr_int; + } param; + char extra[SDP_MAX_STRING_LEN + 1]; /* Holds any trailing information that + cannot be represented by preceding + fields. */ +} sdp_fmtp_fb_t; + +typedef struct sdp_rtcp { + sdp_nettype_e nettype; + sdp_addrtype_e addrtype; + char addr[SDP_MAX_STRING_LEN+1]; + uint16_t port; +} sdp_rtcp_t; + +/* + * b=<bw-modifier>:<val> + * +*/ +typedef struct sdp_bw_data { + struct sdp_bw_data *next_p; + sdp_bw_modifier_e bw_modifier; + int bw_val; +} sdp_bw_data_t; + +/* + * This structure houses a linked list of sdp_bw_data_t instances. Each + * sdp_bw_data_t instance represents one b= line. + */ +typedef struct sdp_bw { + uint16_t bw_data_count; + sdp_bw_data_t *bw_data_list; +} sdp_bw_t; + +/* Media lines for AAL2 may have more than one transport type defined + * each with its own payload type list. These are referred to as + * profile types instead of transport types. This structure is used + * to handle these multiple profile types. Note: One additional profile + * field is needed because of the way parsing is done. This is not an + * error. */ +typedef struct sdp_media_profiles { + uint16_t num_profiles; + sdp_transport_e profile[SDP_MAX_PROFILES+1]; + uint16_t num_payloads[SDP_MAX_PROFILES]; + sdp_payload_ind_e payload_indicator[SDP_MAX_PROFILES][SDP_MAX_PAYLOAD_TYPES]; + uint16_t payload_type[SDP_MAX_PROFILES][SDP_MAX_PAYLOAD_TYPES]; +} sdp_media_profiles_t; +/* + * a=extmap:<value>["/"<direction>] <URI> <extensionattributes> + * + */ +typedef struct sdp_extmap { + uint16_t id; + sdp_direction_e media_direction; + tinybool media_direction_specified; + char uri[SDP_MAX_STRING_LEN+1]; + char extension_attributes[SDP_MAX_STRING_LEN+1]; +} sdp_extmap_t; + +typedef struct sdp_ssrc { + uint32_t ssrc; + char attribute[SDP_MAX_STRING_LEN + 1]; +} sdp_ssrc_t; + +/* + * sdp_srtp_crypto_context_t + * This type is used to hold cryptographic context information. + * + */ +typedef struct sdp_srtp_crypto_context_t_ { + int32_t tag; + unsigned long selection_flags; + sdp_srtp_crypto_suite_t suite; + unsigned char master_key[SDP_SRTP_MAX_KEY_SIZE_BYTES]; + unsigned char master_salt[SDP_SRTP_MAX_SALT_SIZE_BYTES]; + unsigned char master_key_size_bytes; + unsigned char master_salt_size_bytes; + unsigned long ssrc; /* not used */ + unsigned long roc; /* not used */ + unsigned long kdr; /* not used */ + unsigned short seq; /* not used */ + sdp_srtp_fec_order_t fec_order; /* not used */ + unsigned char master_key_lifetime[SDP_SRTP_MAX_LIFETIME_BYTES]; + unsigned char mki[SDP_SRTP_MAX_MKI_SIZE_BYTES]; + uint16_t mki_size_bytes; + char* session_parameters; +} sdp_srtp_crypto_context_t; + + +/* m= line info and associated attribute list */ +/* Note: Most of the port parameter values are 16-bit values. We set + * the type to int32_t so we can return either a 16-bit value or the + * choose value. */ +typedef struct sdp_mca { + sdp_media_e media; + sdp_conn_t conn; + sdp_transport_e transport; + sdp_port_format_e port_format; + int32_t port; + int32_t sctpport; + int32_t num_ports; + int32_t vpi; + uint32_t vci; /* VCI needs to be 32-bit */ + int32_t vcci; + int32_t cid; + uint16_t num_payloads; + sdp_payload_ind_e payload_indicator[SDP_MAX_PAYLOAD_TYPES]; + uint16_t payload_type[SDP_MAX_PAYLOAD_TYPES]; + sdp_media_profiles_t *media_profiles_p; + tinybool sessinfo_found; + sdp_encryptspec_t encrypt; + sdp_bw_t bw; + sdp_attr_e media_direction; /* Either INACTIVE, SENDONLY, + RECVONLY, or SENDRECV */ + uint32_t mid; + uint32_t line_number; + struct sdp_attr *media_attrs_p; + struct sdp_mca *next_p; +} sdp_mca_t; + + +/* generic a= line info */ +typedef struct sdp_attr { + sdp_attr_e type; + uint32_t line_number; + union { + tinybool boolean_val; + uint32_t u32_val; + char string_val[SDP_MAX_STRING_LEN+1]; + char *stringp; + char ice_attr[SDP_MAX_STRING_LEN+1]; + sdp_fmtp_t fmtp; + sdp_sctpmap_t sctpmap; + sdp_msid_t msid; + sdp_qos_t qos; + sdp_curr_t curr; + sdp_des_t des; + sdp_conf_t conf; + sdp_transport_map_t transport_map; /* A rtpmap or sprtmap */ + sdp_subnet_t subnet; + sdp_t38_ratemgmt_e t38ratemgmt; + sdp_t38_udpec_e t38udpec; + sdp_pccodec_t pccodec; + sdp_silencesupp_t silencesupp; + sdp_mca_t *cap_p; /* A X-CAP or CDSC attribute */ + sdp_rtr_t rtr; + sdp_comediadir_t comediadir; + sdp_srtp_crypto_context_t srtp_context; + sdp_mptime_t mptime; + sdp_stream_data_t stream_data; + sdp_msid_semantic_t msid_semantic; + char unknown[SDP_MAX_STRING_LEN+1]; + sdp_source_filter_t source_filter; + sdp_fmtp_fb_t rtcp_fb; + sdp_rtcp_t rtcp; + sdp_setup_type_e setup; + sdp_connection_type_e connection; + sdp_extmap_t extmap; + sdp_ssrc_t ssrc; + } attr; + struct sdp_attr *next_p; +} sdp_attr_t; +typedef struct sdp_srtp_crypto_suite_list_ { + sdp_srtp_crypto_suite_t crypto_suite_val; + char * crypto_suite_str; + unsigned char key_size_bytes; + unsigned char salt_size_bytes; +} sdp_srtp_crypto_suite_list; + +typedef void (*sdp_parse_error_handler)(void *context, + uint32_t line, + const char *message); + +/* Application configuration options */ +typedef struct sdp_conf_options { + tinybool debug_flag[SDP_MAX_DEBUG_TYPES]; + tinybool version_reqd; + tinybool owner_reqd; + tinybool session_name_reqd; + tinybool timespec_reqd; + tinybool media_supported[SDP_MAX_MEDIA_TYPES]; + tinybool nettype_supported[SDP_MAX_NETWORK_TYPES]; + tinybool addrtype_supported[SDP_MAX_ADDR_TYPES]; + tinybool transport_supported[SDP_MAX_TRANSPORT_TYPES]; + tinybool allow_choose[SDP_MAX_CHOOSE_PARAMS]; + /* Statistics counts */ + uint32_t num_builds; + uint32_t num_parses; + uint32_t num_not_sdp_desc; + uint32_t num_invalid_token_order; + uint32_t num_invalid_param; + uint32_t num_no_resource; + struct sdp_conf_options *next_p; + sdp_parse_error_handler error_handler; + void *error_handler_context; +} sdp_conf_options_t; + + +/* Session level SDP info with pointers to media line info. */ +/* Elements here that can only be one of are included directly. Elements */ +/* that can be more than one are pointers. */ +typedef struct { + sdp_conf_options_t *conf_p; + tinybool debug_flag[SDP_MAX_DEBUG_TYPES]; + char debug_str[SDP_MAX_STRING_LEN+1]; + uint32_t debug_id; + int32_t version; /* version is really a uint16_t */ + char owner_name[SDP_MAX_STRING_LEN+1]; + char owner_sessid[SDP_MAX_STRING_LEN+1]; + char owner_version[SDP_MAX_STRING_LEN+1]; + sdp_nettype_e owner_network_type; + sdp_addrtype_e owner_addr_type; + char owner_addr[SDP_MAX_STRING_LEN+1]; + char sessname[SDP_MAX_STRING_LEN+1]; + tinybool sessinfo_found; + tinybool uri_found; + sdp_conn_t default_conn; + sdp_timespec_t *timespec_p; + sdp_encryptspec_t encrypt; + sdp_bw_t bw; + sdp_attr_t *sess_attrs_p; + + /* Info to help with building capability attributes. */ + uint16_t cur_cap_num; + sdp_mca_t *cur_cap_p; + /* Info to help parsing X-cpar attrs. */ + uint16_t cap_valid; + uint16_t last_cap_inst; + /* Info to help building X-cpar/cpar attrs. */ + sdp_attr_e last_cap_type; + + /* Facilitates reporting line number for SDP errors */ + uint32_t parse_line; + + /* MCA - Media, connection, and attributes */ + sdp_mca_t *mca_p; + ushort mca_count; +} sdp_t; + + +/* Token processing table. */ +typedef struct { + char *name; + sdp_result_e (*parse_func)(sdp_t *sdp_p, uint16_t level, const char *ptr); + sdp_result_e (*build_func)(sdp_t *sdp_p, uint16_t level, flex_string *fs); +} sdp_tokenarray_t; + +/* Attribute processing table. */ +typedef struct { + char *name; + uint16_t strlen; + sdp_result_e (*parse_func)(sdp_t *sdp_p, sdp_attr_t *attr_p, + const char *ptr); + sdp_result_e (*build_func)(sdp_t *sdp_p, sdp_attr_t *attr_p, + flex_string *fs); +} sdp_attrarray_t; + + +/* Prototypes */ + +/* sdp_config.c */ +extern sdp_conf_options_t *sdp_init_config(void); +extern void sdp_free_config(sdp_conf_options_t *config_p); +extern void sdp_appl_debug(sdp_conf_options_t *config_p, sdp_debug_e debug_type, + tinybool debug_flag); +extern void sdp_require_version(sdp_conf_options_t *config_p, tinybool version_required); +extern void sdp_require_owner(sdp_conf_options_t *config_p, tinybool owner_required); +extern void sdp_require_session_name(sdp_conf_options_t *config_p, + tinybool sess_name_required); +extern void sdp_require_timespec(sdp_conf_options_t *config_p, tinybool timespec_required); +extern void sdp_media_supported(sdp_conf_options_t *config_p, sdp_media_e media_type, + tinybool media_supported); +extern void sdp_nettype_supported(sdp_conf_options_t *config_p, sdp_nettype_e nettype, + tinybool nettype_supported); +extern void sdp_addrtype_supported(sdp_conf_options_t *config_p, sdp_addrtype_e addrtype, + tinybool addrtype_supported); +extern void sdp_transport_supported(sdp_conf_options_t *config_p, sdp_transport_e transport, + tinybool transport_supported); +extern void sdp_allow_choose(sdp_conf_options_t *config_p, sdp_choose_param_e param, + tinybool choose_allowed); +extern void sdp_config_set_error_handler(sdp_conf_options_t *config_p, + sdp_parse_error_handler handler, + void *context); + +/* sdp_main.c */ +extern sdp_t *sdp_init_description(sdp_conf_options_t *config_p); +extern void sdp_debug(sdp_t *sdp_ptr, sdp_debug_e debug_type, tinybool debug_flag); +extern void sdp_set_string_debug(sdp_t *sdp_ptr, const char *debug_str); +extern sdp_result_e sdp_parse(sdp_t *sdp_ptr, const char *buf, size_t len); +extern sdp_result_e sdp_build(sdp_t *sdp_ptr, flex_string *fs); +extern sdp_result_e sdp_free_description(sdp_t *sdp_ptr); +extern void sdp_parse_error(sdp_t *sdp, const char *format, ...); + +extern const char *sdp_get_result_name(sdp_result_e rc); + + +/* sdp_access.c */ +extern tinybool sdp_version_valid(sdp_t *sdp_p); +extern int32_t sdp_get_version(sdp_t *sdp_p); +extern sdp_result_e sdp_set_version(sdp_t *sdp_p, int32_t version); + +extern tinybool sdp_owner_valid(sdp_t *sdp_p); +extern const char *sdp_get_owner_username(sdp_t *sdp_p); +extern const char *sdp_get_owner_sessionid(sdp_t *sdp_p); +extern const char *sdp_get_owner_version(sdp_t *sdp_p); +extern sdp_nettype_e sdp_get_owner_network_type(sdp_t *sdp_p); +extern sdp_addrtype_e sdp_get_owner_address_type(sdp_t *sdp_p); +extern const char *sdp_get_owner_address(sdp_t *sdp_p); +extern sdp_result_e sdp_set_owner_username(sdp_t *sdp_p, const char *username); +extern sdp_result_e sdp_set_owner_sessionid(sdp_t *sdp_p, const char *sessid); +extern sdp_result_e sdp_set_owner_version(sdp_t *sdp_p, const char *version); +extern sdp_result_e sdp_set_owner_network_type(sdp_t *sdp_p, + sdp_nettype_e network_type); +extern sdp_result_e sdp_set_owner_address_type(sdp_t *sdp_p, + sdp_addrtype_e address_type); +extern sdp_result_e sdp_set_owner_address(sdp_t *sdp_p, const char *address); + +extern tinybool sdp_session_name_valid(sdp_t *sdp_p); +extern const char *sdp_get_session_name(sdp_t *sdp_p); +extern sdp_result_e sdp_set_session_name(sdp_t *sdp_p, const char *sessname); + +extern tinybool sdp_timespec_valid(sdp_t *sdp_ptr); +extern const char *sdp_get_time_start(sdp_t *sdp_ptr); +extern const char *sdp_get_time_stop(sdp_t *sdp_ptr); +sdp_result_e sdp_set_time_start(sdp_t *sdp_p, const char *start_time); +sdp_result_e sdp_set_time_stop(sdp_t *sdp_p, const char *stop_time); + +extern tinybool sdp_encryption_valid(sdp_t *sdp_p, uint16_t level); +extern sdp_encrypt_type_e sdp_get_encryption_method(sdp_t *sdp_p, uint16_t level); +extern const char *sdp_get_encryption_key(sdp_t *sdp_p, uint16_t level); + +extern tinybool sdp_connection_valid(sdp_t *sdp_p, uint16_t level); +extern tinybool sdp_bw_line_exists(sdp_t *sdp_p, uint16_t level, uint16_t inst_num); +extern tinybool sdp_bandwidth_valid(sdp_t *sdp_p, uint16_t level, uint16_t inst_num); +extern sdp_nettype_e sdp_get_conn_nettype(sdp_t *sdp_p, uint16_t level); +extern sdp_addrtype_e sdp_get_conn_addrtype(sdp_t *sdp_p, uint16_t level); +extern const char *sdp_get_conn_address(sdp_t *sdp_p, uint16_t level); + +extern tinybool sdp_is_mcast_addr (sdp_t *sdp_p, uint16_t level); +extern int32_t sdp_get_mcast_ttl(sdp_t *sdp_p, uint16_t level); +extern int32_t sdp_get_mcast_num_of_addresses(sdp_t *sdp_p, uint16_t level); + +extern sdp_result_e sdp_set_conn_nettype(sdp_t *sdp_p, uint16_t level, + sdp_nettype_e nettype); +extern sdp_result_e sdp_set_conn_addrtype(sdp_t *sdp_p, uint16_t level, + sdp_addrtype_e addrtype); +extern sdp_result_e sdp_set_conn_address(sdp_t *sdp_p, uint16_t level, + const char *address); + +extern tinybool sdp_media_line_valid(sdp_t *sdp_p, uint16_t level); +extern uint16_t sdp_get_num_media_lines(sdp_t *sdp_ptr); +extern sdp_media_e sdp_get_media_type(sdp_t *sdp_p, uint16_t level); +extern uint32_t sdp_get_media_line_number(sdp_t *sdp_p, uint16_t level); +extern sdp_port_format_e sdp_get_media_port_format(sdp_t *sdp_p, uint16_t level); +extern int32_t sdp_get_media_portnum(sdp_t *sdp_p, uint16_t level); +extern int32_t sdp_get_media_portcount(sdp_t *sdp_p, uint16_t level); +extern int32_t sdp_get_media_vpi(sdp_t *sdp_p, uint16_t level); +extern uint32_t sdp_get_media_vci(sdp_t *sdp_p, uint16_t level); +extern int32_t sdp_get_media_vcci(sdp_t *sdp_p, uint16_t level); +extern int32_t sdp_get_media_cid(sdp_t *sdp_p, uint16_t level); +extern sdp_transport_e sdp_get_media_transport(sdp_t *sdp_p, uint16_t level); +extern uint16_t sdp_get_media_num_profiles(sdp_t *sdp_p, uint16_t level); +extern sdp_transport_e sdp_get_media_profile(sdp_t *sdp_p, uint16_t level, + uint16_t profile_num); +extern uint16_t sdp_get_media_num_payload_types(sdp_t *sdp_p, uint16_t level); +extern uint16_t sdp_get_media_profile_num_payload_types(sdp_t *sdp_p, uint16_t level, + uint16_t profile_num); +extern rtp_ptype sdp_get_known_payload_type(sdp_t *sdp_p, + uint16_t level, + uint16_t payload_type_raw); +extern uint32_t sdp_get_media_payload_type(sdp_t *sdp_p, uint16_t level, + uint16_t payload_num, sdp_payload_ind_e *indicator); +extern uint32_t sdp_get_media_profile_payload_type(sdp_t *sdp_p, uint16_t level, + uint16_t prof_num, uint16_t payload_num, sdp_payload_ind_e *indicator); +extern sdp_result_e sdp_insert_media_line(sdp_t *sdp_p, uint16_t level); +extern sdp_result_e sdp_set_media_type(sdp_t *sdp_p, uint16_t level, + sdp_media_e media); +extern sdp_result_e sdp_set_media_portnum(sdp_t *sdp_p, uint16_t level, + int32_t portnum, int32_t sctpport); +extern int32_t sdp_get_media_sctp_port(sdp_t *sdp_p, uint16_t level); +extern sdp_result_e sdp_set_media_transport(sdp_t *sdp_p, uint16_t level, + sdp_transport_e transport); +extern sdp_result_e sdp_add_media_profile(sdp_t *sdp_p, uint16_t level, + sdp_transport_e profile); +extern sdp_result_e sdp_add_media_payload_type(sdp_t *sdp_p, uint16_t level, + uint16_t payload_type, sdp_payload_ind_e indicator); +extern sdp_result_e sdp_add_media_profile_payload_type(sdp_t *sdp_p, + uint16_t level, uint16_t prof_num, uint16_t payload_type, + sdp_payload_ind_e indicator); + +/* sdp_attr_access.c */ +extern sdp_attr_t *sdp_find_attr (sdp_t *sdp_p, uint16_t level, uint8_t cap_num, + sdp_attr_e attr_type, uint16_t inst_num); + +extern int sdp_find_fmtp_inst(sdp_t *sdp_ptr, uint16_t level, uint16_t payload_num); +extern sdp_result_e sdp_add_new_attr(sdp_t *sdp_p, uint16_t level, uint8_t cap_num, + sdp_attr_e attr_type, uint16_t *inst_num); +extern sdp_result_e sdp_attr_num_instances(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, sdp_attr_e attr_type, uint16_t *num_attr_inst); +extern tinybool sdp_attr_valid(sdp_t *sdp_p, sdp_attr_e attr_type, + uint16_t level, uint8_t cap_num, uint16_t inst_num); +extern uint32_t sdp_attr_line_number(sdp_t *sdp_p, sdp_attr_e attr_type, + uint16_t level, uint8_t cap_num, uint16_t inst_num); +extern const char *sdp_attr_get_simple_string(sdp_t *sdp_p, + sdp_attr_e attr_type, uint16_t level, uint8_t cap_num, uint16_t inst_num); +extern const char *sdp_attr_get_long_string(sdp_t *sdp_p, + sdp_attr_e attr_type, uint16_t level, uint8_t cap_num, uint16_t inst_num); +extern uint32_t sdp_attr_get_simple_u32(sdp_t *sdp_p, sdp_attr_e attr_type, + uint16_t level, uint8_t cap_num, uint16_t inst_num); +extern tinybool sdp_attr_get_simple_boolean(sdp_t *sdp_p, + sdp_attr_e attr_type, uint16_t level, uint8_t cap_num, uint16_t inst_num); +extern tinybool sdp_attr_is_present (sdp_t *sdp_p, sdp_attr_e attr_type, + uint16_t level, uint8_t cap_num); +extern const char* sdp_attr_get_maxprate(sdp_t *sdp_p, uint16_t level, + uint16_t inst_num); +extern sdp_t38_ratemgmt_e sdp_attr_get_t38ratemgmt(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern sdp_t38_udpec_e sdp_attr_get_t38udpec(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern sdp_direction_e sdp_get_media_direction(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num); +extern sdp_qos_strength_e sdp_attr_get_qos_strength(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, sdp_attr_e qos_attr, uint16_t inst_num); +extern sdp_qos_status_types_e sdp_attr_get_qos_status_type (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, sdp_attr_e qos_attr, uint16_t inst_num); +extern sdp_qos_dir_e sdp_attr_get_qos_direction(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, sdp_attr_e qos_attr, uint16_t inst_num); +extern tinybool sdp_attr_get_qos_confirm(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, sdp_attr_e qos_attr, uint16_t inst_num); +extern sdp_curr_type_e sdp_attr_get_curr_type (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, sdp_attr_e qos_attr, uint16_t inst_num); +extern sdp_des_type_e sdp_attr_get_des_type (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, sdp_attr_e qos_attr, uint16_t inst_num); +extern sdp_conf_type_e sdp_attr_get_conf_type (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, sdp_attr_e qos_attr, uint16_t inst_num); +extern sdp_nettype_e sdp_attr_get_subnet_nettype(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern sdp_addrtype_e sdp_attr_get_subnet_addrtype(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern const char *sdp_attr_get_subnet_addr(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern int32_t sdp_attr_get_subnet_prefix(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern rtp_ptype sdp_attr_get_rtpmap_known_codec(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern tinybool sdp_attr_rtpmap_payload_valid(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t *inst_num, uint16_t payload_type); +extern uint16_t sdp_attr_get_rtpmap_payload_type(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern const char *sdp_attr_get_rtpmap_encname(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern uint32_t sdp_attr_get_rtpmap_clockrate(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern uint16_t sdp_attr_get_rtpmap_num_chan(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern tinybool sdp_attr_sprtmap_payload_valid(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t *inst_num, uint16_t payload_type); +extern uint16_t sdp_attr_get_sprtmap_payload_type(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern const char *sdp_attr_get_sprtmap_encname(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern uint32_t sdp_attr_get_sprtmap_clockrate(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern uint16_t sdp_attr_get_sprtmap_num_chan(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern tinybool sdp_attr_fmtp_payload_valid(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t *inst_num, uint16_t payload_type); +extern uint16_t sdp_attr_get_fmtp_payload_type(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern sdp_ne_res_e sdp_attr_fmtp_is_range_set(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, uint8_t low_val, uint8_t high_val); +extern tinybool sdp_attr_fmtp_valid(sdp_t *sdp_p, uint16_t level, uint8_t cap_num, + uint16_t inst_num, uint16_t appl_maxval, uint32_t* evt_array); +extern sdp_result_e sdp_attr_set_fmtp_payload_type(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, + uint16_t payload_num); +extern sdp_result_e sdp_attr_get_fmtp_range(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, uint32_t *bmap); +extern sdp_result_e sdp_attr_clear_fmtp_range(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, uint8_t low_val, uint8_t high_val); +extern sdp_ne_res_e sdp_attr_compare_fmtp_ranges(sdp_t *src_sdp_ptr, + sdp_t *dst_sdp_ptr, uint16_t src_level, uint16_t dst_level, + uint8_t src_cap_num, uint8_t dst_cap_num, uint16_t src_inst_num, + uint16_t dst_inst_num); +extern sdp_result_e sdp_attr_copy_fmtp_ranges(sdp_t *src_sdp_ptr, + sdp_t *dst_sdp_ptr, uint16_t src_level, uint16_t dst_level, + uint8_t src_cap_num, uint8_t dst_cap_num, uint16_t src_inst_num, + uint16_t dst_inst_num); +extern uint32_t sdp_attr_get_fmtp_mode_for_payload_type (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint32_t payload_type); + +extern sdp_result_e sdp_attr_set_fmtp_max_fs (sdp_t *sdp_p, + uint16_t level, + uint8_t cap_num, + uint16_t inst_num, + uint32_t max_fs); + +extern sdp_result_e sdp_attr_set_fmtp_max_fr (sdp_t *sdp_p, + uint16_t level, + uint8_t cap_num, + uint16_t inst_num, + uint32_t max_fr); + +/* get routines */ +extern int32_t sdp_attr_get_fmtp_bitrate_type (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); + +extern int32_t sdp_attr_get_fmtp_cif (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern int32_t sdp_attr_get_fmtp_qcif (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern int32_t sdp_attr_get_fmtp_sqcif (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern int32_t sdp_attr_get_fmtp_cif4 (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern int32_t sdp_attr_get_fmtp_cif16 (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern int32_t sdp_attr_get_fmtp_maxbr (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern sdp_result_e sdp_attr_get_fmtp_max_average_bitrate (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, uint32_t* val); +extern sdp_result_e sdp_attr_get_fmtp_usedtx (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, tinybool* val); +extern sdp_result_e sdp_attr_get_fmtp_stereo (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, tinybool* val); +extern sdp_result_e sdp_attr_get_fmtp_useinbandfec (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, tinybool* val); +extern char* sdp_attr_get_fmtp_maxcodedaudiobandwidth (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern sdp_result_e sdp_attr_get_fmtp_cbr (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, tinybool* val); +extern int32_t sdp_attr_get_fmtp_custom_x (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern int32_t sdp_attr_get_fmtp_custom_y (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern int32_t sdp_attr_get_fmtp_custom_mpi (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern int32_t sdp_attr_get_fmtp_par_width (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern int32_t sdp_attr_get_fmtp_par_height (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern int32_t sdp_attr_get_fmtp_bpp (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern int32_t sdp_attr_get_fmtp_hrd (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern int32_t sdp_attr_get_fmtp_profile (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern int32_t sdp_attr_get_fmtp_level (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern tinybool sdp_attr_get_fmtp_interlace (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern tinybool sdp_attr_get_fmtp_annex_d (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern tinybool sdp_attr_get_fmtp_annex_f (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern tinybool sdp_attr_get_fmtp_annex_i (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern tinybool sdp_attr_get_fmtp_annex_j (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern tinybool sdp_attr_get_fmtp_annex_t (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern int32_t sdp_attr_get_fmtp_annex_k_val (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern int32_t sdp_attr_get_fmtp_annex_n_val (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); + +extern int32_t sdp_attr_get_fmtp_annex_p_picture_resize (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern int32_t sdp_attr_get_fmtp_annex_p_warp (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); + +/* sctpmap params */ +extern uint16_t sdp_attr_get_sctpmap_port(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern sdp_result_e sdp_attr_get_sctpmap_protocol (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, char* protocol); +extern sdp_result_e sdp_attr_get_sctpmap_streams (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, uint32_t* val); + +extern const char *sdp_attr_get_msid_identifier(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern const char *sdp_attr_get_msid_appdata(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); + +/* H.264 codec specific params */ + +extern const char *sdp_attr_get_fmtp_profile_id(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern const char *sdp_attr_get_fmtp_param_sets(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern sdp_result_e sdp_attr_get_fmtp_pack_mode (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, uint16_t *val); + +extern sdp_result_e sdp_attr_get_fmtp_level_asymmetry_allowed (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, uint16_t *val); + +extern sdp_result_e sdp_attr_get_fmtp_interleaving_depth (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, + uint16_t *val); +extern sdp_result_e sdp_attr_get_fmtp_max_don_diff (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, + uint32_t *val); + +/* The following four H.264 parameters that require special handling as + * the values range from 0 - 4294967295 + */ +extern sdp_result_e sdp_attr_get_fmtp_deint_buf_req (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, + uint32_t *val); +extern sdp_result_e sdp_attr_get_fmtp_deint_buf_cap (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, + uint32_t *val); +extern sdp_result_e sdp_attr_get_fmtp_init_buf_time (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, + uint32_t *val); +extern sdp_result_e sdp_attr_get_fmtp_max_rcmd_nalu_size (sdp_t *sdp_p, + uint16_t level, uint8_t cap_num, + uint16_t inst_num, uint32_t *val); + + +extern sdp_result_e sdp_attr_get_fmtp_max_mbps (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, uint32_t *val); +extern sdp_result_e sdp_attr_get_fmtp_max_fs (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, uint32_t *val); +extern sdp_result_e sdp_attr_get_fmtp_max_fr (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, uint32_t *val); +extern sdp_result_e sdp_attr_get_fmtp_max_cpb (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, uint32_t *val); +extern sdp_result_e sdp_attr_get_fmtp_max_dpb (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, uint32_t *val); +extern sdp_result_e sdp_attr_get_fmtp_max_br (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, uint32_t *val); +extern tinybool sdp_attr_fmtp_is_redundant_pic_cap (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, + uint16_t inst_num); +extern tinybool sdp_attr_fmtp_is_parameter_add (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, + uint16_t inst_num); +extern tinybool sdp_attr_fmtp_is_annexa_set (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, + uint16_t inst_num); + +extern tinybool sdp_attr_fmtp_is_annexb_set (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, + uint16_t inst_num); + +extern sdp_fmtp_format_type_e sdp_attr_fmtp_get_fmtp_format (sdp_t *sdp_p, uint16_t level, uint8_t cap_num, + uint16_t inst_num); + +extern uint16_t sdp_attr_get_pccodec_num_payload_types(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern uint16_t sdp_attr_get_pccodec_payload_type(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, uint16_t payload_num); +extern sdp_result_e sdp_attr_add_pccodec_payload_type(sdp_t *sdp_p, + uint16_t level, uint8_t cap_num, + uint16_t inst_num, uint16_t payload_type); +extern uint16_t sdp_attr_get_xcap_first_cap_num(sdp_t *sdp_p, uint16_t level, + uint16_t inst_num); +extern sdp_media_e sdp_attr_get_xcap_media_type(sdp_t *sdp_p, uint16_t level, + uint16_t inst_num); +extern sdp_transport_e sdp_attr_get_xcap_transport_type(sdp_t *sdp_p, + uint16_t level, uint16_t inst_num); +extern uint16_t sdp_attr_get_xcap_num_payload_types(sdp_t *sdp_p, uint16_t level, + uint16_t inst_num); +extern uint16_t sdp_attr_get_xcap_payload_type(sdp_t *sdp_p, uint16_t level, + uint16_t inst_num, uint16_t payload_num, + sdp_payload_ind_e *indicator); +extern sdp_result_e sdp_attr_add_xcap_payload_type(sdp_t *sdp_p, uint16_t level, + uint16_t inst_num, uint16_t payload_type, + sdp_payload_ind_e indicator); +extern uint16_t sdp_attr_get_cdsc_first_cap_num(sdp_t *sdp_p, uint16_t level, + uint16_t inst_num); +extern sdp_media_e sdp_attr_get_cdsc_media_type(sdp_t *sdp_p, uint16_t level, + uint16_t inst_num); +extern sdp_transport_e sdp_attr_get_cdsc_transport_type(sdp_t *sdp_p, + uint16_t level, uint16_t inst_num); +extern uint16_t sdp_attr_get_cdsc_num_payload_types(sdp_t *sdp_p, uint16_t level, + uint16_t inst_num); +extern uint16_t sdp_attr_get_cdsc_payload_type(sdp_t *sdp_p, uint16_t level, + uint16_t inst_num, uint16_t payload_num, + sdp_payload_ind_e *indicator); +extern sdp_result_e sdp_attr_add_cdsc_payload_type(sdp_t *sdp_p, uint16_t level, + uint16_t inst_num, uint16_t payload_type, + sdp_payload_ind_e indicator); +extern tinybool sdp_media_dynamic_payload_valid (sdp_t *sdp_p, uint16_t payload_type, + uint16_t m_line); + +extern tinybool sdp_attr_get_rtr_confirm (sdp_t *, uint16_t, uint8_t, uint16_t); + +extern tinybool sdp_attr_get_silencesupp_enabled(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern uint16_t sdp_attr_get_silencesupp_timer(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, + tinybool *null_ind); +extern sdp_silencesupp_pref_e sdp_attr_get_silencesupp_pref(sdp_t *sdp_p, + uint16_t level, + uint8_t cap_num, + uint16_t inst_num); +extern sdp_silencesupp_siduse_e sdp_attr_get_silencesupp_siduse(sdp_t *sdp_p, + uint16_t level, + uint8_t cap_num, + uint16_t inst_num); +extern uint8_t sdp_attr_get_silencesupp_fxnslevel(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, + tinybool *null_ind); +extern sdp_mediadir_role_e sdp_attr_get_comediadir_role(sdp_t *sdp_p, + uint16_t level, uint8_t cap_num, + uint16_t inst_num); + +extern uint16_t sdp_attr_get_mptime_num_intervals( + sdp_t *sdp_p, uint16_t level, uint8_t cap_num, uint16_t inst_num); +extern uint16_t sdp_attr_get_mptime_interval( + sdp_t *sdp_p, uint16_t level, uint8_t cap_num, uint16_t inst_num, uint16_t interval_num); +extern sdp_result_e sdp_attr_add_mptime_interval( + sdp_t *sdp_p, uint16_t level, uint8_t cap_num, uint16_t inst_num, uint16_t interval); + + +extern sdp_result_e sdp_copy_all_bw_lines(sdp_t *src_sdp_ptr, sdp_t *dst_sdp_ptr, + uint16_t src_level, uint16_t dst_level); +extern sdp_bw_modifier_e sdp_get_bw_modifier(sdp_t *sdp_p, uint16_t level, + uint16_t inst_num); +extern const char *sdp_get_bw_modifier_name(sdp_bw_modifier_e bw_modifier); +extern int32_t sdp_get_bw_value(sdp_t *sdp_p, uint16_t level, uint16_t inst_num); +extern int32_t sdp_get_num_bw_lines (sdp_t *sdp_p, uint16_t level); + +extern sdp_result_e sdp_add_new_bw_line(sdp_t *sdp_p, uint16_t level, + sdp_bw_modifier_e bw_modifier, uint16_t *inst_num); + +extern sdp_group_attr_e sdp_get_group_attr(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); + +extern const char* sdp_attr_get_x_sidout (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); + + +extern const char* sdp_attr_get_x_sidin (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); + +extern const char* sdp_attr_get_x_confid (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); + +extern uint16_t sdp_get_group_num_id(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); + +extern const char* sdp_get_group_id(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, uint16_t id_num); + +extern int32_t sdp_get_mid_value(sdp_t *sdp_p, uint16_t level); +extern sdp_result_e sdp_include_new_filter_src_addr(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, + const char *src_addr); +extern sdp_src_filter_mode_e sdp_get_source_filter_mode(sdp_t *sdp_p, + uint16_t level, uint8_t cap_num, + uint16_t inst_num); +extern sdp_result_e sdp_get_filter_destination_attributes(sdp_t *sdp_p, + uint16_t level, uint8_t cap_num, + uint16_t inst_num, + sdp_nettype_e *nettype, + sdp_addrtype_e *addrtype, + char *dest_addr); +extern int32_t sdp_get_filter_source_address_count(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num); +extern sdp_result_e sdp_get_filter_source_address (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, + uint16_t src_addr_id, + char *src_addr); + +extern sdp_rtcp_unicast_mode_e sdp_get_rtcp_unicast_mode(sdp_t *sdp_p, + uint16_t level, uint8_t cap_num, + uint16_t inst_num); + +void sdp_crypto_debug(char *buffer, ulong length_bytes); +char * sdp_debug_msg_filter(char *buffer, ulong length_bytes); + +extern int32_t +sdp_attr_get_sdescriptions_tag(sdp_t *sdp_p, + uint16_t level, + uint8_t cap_num, + uint16_t inst_num); + +extern sdp_srtp_crypto_suite_t +sdp_attr_get_sdescriptions_crypto_suite(sdp_t *sdp_p, + uint16_t level, + uint8_t cap_num, + uint16_t inst_num); + +extern const char* +sdp_attr_get_sdescriptions_key(sdp_t *sdp_p, + uint16_t level, + uint8_t cap_num, + uint16_t inst_num); + +extern const char* +sdp_attr_get_sdescriptions_salt(sdp_t *sdp_p, + uint16_t level, + uint8_t cap_num, + uint16_t inst_num); + +extern const char* +sdp_attr_get_sdescriptions_lifetime(sdp_t *sdp_p, + uint16_t level, + uint8_t cap_num, + uint16_t inst_num); + +extern sdp_result_e +sdp_attr_get_sdescriptions_mki(sdp_t *sdp_p, + uint16_t level, + uint8_t cap_num, + uint16_t inst_num, + const char **mki_value, + uint16_t *mki_length); + +extern const char* +sdp_attr_get_sdescriptions_session_params(sdp_t *sdp_p, + uint16_t level, + uint8_t cap_num, + uint16_t inst_num); + +extern unsigned char +sdp_attr_get_sdescriptions_key_size(sdp_t *sdp_p, + uint16_t level, + uint8_t cap_num, + uint16_t inst_num); + +extern unsigned char +sdp_attr_get_sdescriptions_salt_size(sdp_t *sdp_p, + uint16_t level, + uint8_t cap_num, + uint16_t inst_num); + +extern unsigned long +sdp_attr_get_srtp_crypto_selection_flags(sdp_t *sdp_p, + uint16_t level, + uint8_t cap_num, + uint16_t inst_num); + +sdp_result_e +sdp_attr_get_ice_attribute (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, sdp_attr_e sdp_attr, uint16_t inst_num, + char **out); + +sdp_result_e +sdp_attr_get_rtcp_mux_attribute (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, sdp_attr_e sdp_attr, uint16_t inst_num, + tinybool *rtcp_mux); + +sdp_result_e +sdp_attr_get_setup_attribute (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, sdp_setup_type_e *setup_type); + +sdp_result_e +sdp_attr_get_connection_attribute (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, sdp_connection_type_e *connection_type); + +sdp_result_e +sdp_attr_get_dtls_fingerprint_attribute (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, sdp_attr_e sdp_attr, uint16_t inst_num, + char **out); + +sdp_rtcp_fb_ack_type_e +sdp_attr_get_rtcp_fb_ack(sdp_t *sdp_p, uint16_t level, uint16_t payload_type, uint16_t inst); + +sdp_rtcp_fb_nack_type_e +sdp_attr_get_rtcp_fb_nack(sdp_t *sdp_p, uint16_t level, uint16_t payload_type, uint16_t inst); + +uint32_t +sdp_attr_get_rtcp_fb_trr_int(sdp_t *sdp_p, uint16_t level, uint16_t payload_type, + uint16_t inst); + +tinybool +sdp_attr_get_rtcp_fb_remb_enabled(sdp_t *sdp_p, uint16_t level, + uint16_t payload_type); + +sdp_rtcp_fb_ccm_type_e +sdp_attr_get_rtcp_fb_ccm(sdp_t *sdp_p, uint16_t level, uint16_t payload_type, uint16_t inst); + +sdp_result_e +sdp_attr_set_rtcp_fb_ack(sdp_t *sdp_p, uint16_t level, uint16_t payload_type, uint16_t inst, + sdp_rtcp_fb_ack_type_e type); + +sdp_result_e +sdp_attr_set_rtcp_fb_nack(sdp_t *sdp_p, uint16_t level, uint16_t payload_type, uint16_t inst, + sdp_rtcp_fb_nack_type_e); + +sdp_result_e +sdp_attr_set_rtcp_fb_trr_int(sdp_t *sdp_p, uint16_t level, uint16_t payload_type, + uint16_t inst, uint32_t interval); + +sdp_result_e +sdp_attr_set_rtcp_fb_remb(sdp_t *sdp_p, uint16_t level, uint16_t payload_type, + uint16_t inst); + +sdp_result_e +sdp_attr_set_rtcp_fb_ccm(sdp_t *sdp_p, uint16_t level, uint16_t payload_type, uint16_t inst, + sdp_rtcp_fb_ccm_type_e); +const char * +sdp_attr_get_extmap_uri(sdp_t *sdp_p, uint16_t level, uint16_t inst); + +uint16_t +sdp_attr_get_extmap_id(sdp_t *sdp_p, uint16_t level, uint16_t inst); + +sdp_result_e +sdp_attr_set_extmap(sdp_t *sdp_p, uint16_t level, uint16_t id, const char* uri, uint16_t inst); + +#endif /* _SDP_H_ */ |