SessionDescription.h

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/*******************************************
SessionDescription internal include file
*******************************************/
#ifndef __KINESIS_VIDEO_WEBRTC_CLIENT_PEERCONNECTION_SESSIONDESCRIPTION__
#define __KINESIS_VIDEO_WEBRTC_CLIENT_PEERCONNECTION_SESSIONDESCRIPTION__
 
#pragma once
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define SESSION_DESCRIPTION_INIT_LINE_ENDING            "\\r\\n"
#define SESSION_DESCRIPTION_INIT_LINE_ENDING_WITHOUT_CR "\\n"
 
#define SESSION_DESCRIPTION_INIT_TEMPLATE_HEAD "{\"type\": \"%s\", \"sdp\": \""
#define SESSION_DESCRIPTION_INIT_TEMPLATE_TAIL "\"}"
 
#define SDP_OFFER_VALUE  "offer"
#define SDP_ANSWER_VALUE "answer"
 
#define MEDIA_SECTION_AUDIO_VALUE "audio"
#define MEDIA_SECTION_VIDEO_VALUE "video"
 
#define SDP_TYPE_KEY  "type"
#define SDP_KEY       "sdp"
#define CANDIDATE_KEY "candidate"
#define SSRC_KEY      "ssrc"
#define BUNDLE_KEY    "BUNDLE"
#define MID_KEY       "mid"
 
#define H264_VALUE      "H264/90000"
#define H265_VALUE      "H265/90000"
#define OPUS_VALUE      "opus/48000"
#define VP8_VALUE       "VP8/90000"
#define MULAW_VALUE     "PCMU/8000"
#define ALAW_VALUE      "PCMA/8000"
#define RTX_VALUE       "rtx/90000"
#define RTX_CODEC_VALUE "apt="
#define FMTP_VALUE      "fmtp:"
#define RTPMAP_VALUE    "rtpmap"
 
#define MAX_PAYLOAD_TYPE_LENGTH (UINT64) 10
#define DEFAULT_PAYLOAD_MULAW   (UINT64) 0
#define DEFAULT_PAYLOAD_ALAW    (UINT64) 8
#define DEFAULT_PAYLOAD_OPUS    (UINT64) 111
#define DEFAULT_PAYLOAD_VP8     (UINT64) 96
#define DEFAULT_PAYLOAD_H264    (UINT64) 125
#define DEFAULT_PAYLOAD_H265    (UINT64) 127
 
#define DEFAULT_PAYLOAD_MULAW_STR (PCHAR) "0"
#define DEFAULT_PAYLOAD_ALAW_STR  (PCHAR) "8"
 
#define DEFAULT_H264_FMTP   (PCHAR) "level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42e01f"
#define DEFAULT_H265_FMTP   (PCHAR) "level-id=93;profile-id=1"
#define DEFAULT_OPUS_FMTP   (PCHAR) "minptime=10;useinbandfec=1"
#define H264_PROFILE_42E01F 0x42e01f
// profile-level-id:
//   A base16 [7] (hexadecimal) representation of the following
//   three bytes in the sequence parameter set NAL unit is specified
//   in [1]: 1) profile_idc, 2) a byte herein referred to as
//   profile-iop, composed of the values of constraint_set0_flag,
//   constraint_set1_flag, constraint_set2_flag,
//   constraint_set3_flag, constraint_set4_flag,
//   constraint_set5_flag, and reserved_zero_2bits in bit-
//   significance order, starting from the most-significant bit, and
//   3) level_id.
//
// Reference: https://tools.ietf.org/html/rfc6184#section-8.1
#define H264_FMTP_SUBPROFILE_MASK    0xFFFF00
#define H264_FMTP_PROFILE_LEVEL_MASK 0x0000FF
 
#define DTLS_ROLE_ACTPASS (PCHAR) "actpass"
#define DTLS_ROLE_ACTIVE  (PCHAR) "active"
 
#define VIDEO_CLOCKRATE (UINT64) 90000
#define OPUS_CLOCKRATE  (UINT64) 48000
#define PCM_CLOCKRATE   (UINT64) 8000
 
// https://tools.ietf.org/html/draft-holmer-rmcat-transport-wide-cc-extensions-01
#define TWCC_SDP_ATTR "transport-cc"
#define TWCC_EXT_URL  (PCHAR) "http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01"
 
#define CODEC_RTPMAP_PAYLOAD_TYPES_HASH_TABLE_BUCKET_LENGTH 2
 
STATUS setPayloadTypesFromOffer(PHashTable, PHashTable, PSessionDescription);
STATUS setPayloadTypesForOffer(PHashTable);
 
STATUS setTransceiverPayloadTypes(PHashTable, PHashTable, PDoubleList);
STATUS populateSessionDescription(PKvsPeerConnection, PSessionDescription, PSessionDescription);
STATUS findTransceiversByRemoteDescription(PKvsPeerConnection, PSessionDescription, PHashTable, PHashTable);
STATUS setReceiversSsrc(PSessionDescription, PDoubleList);
PCHAR fmtpForPayloadType(UINT64, PSessionDescription);
UINT64 getH264FmtpScore(PCHAR);
 
#ifdef __cplusplus
}
#endif
#endif /* __KINESIS_VIDEO_WEBRTC_CLIENT_PEERCONNECTION_SESSIONDESCRIPTION__ */