BIG core logic rewrite

2023-03-17 06:48:02 +03:00
parent 2146ea470b
commit 12a7b96289
107 changed files with 3000 additions and 3024 deletions
@@ -0,0 +1,99 @@
+package core
+
+const (
+	DirectionRecvonly = "recvonly"
+	DirectionSendonly = "sendonly"
+	DirectionSendRecv = "sendrecv"
+)
+
+const (
+	KindVideo = "video"
+	KindAudio = "audio"
+)
+
+const (
+	CodecH264 = "H264" // payloadType: 96
+	CodecH265 = "H265"
+	CodecVP8  = "VP8"
+	CodecVP9  = "VP9"
+	CodecAV1  = "AV1"
+	CodecJPEG = "JPEG" // payloadType: 26
+
+	CodecPCMU = "PCMU" // payloadType: 0
+	CodecPCMA = "PCMA" // payloadType: 8
+	CodecAAC  = "MPEG4-GENERIC"
+	CodecOpus = "OPUS" // payloadType: 111
+	CodecG722 = "G722"
+	CodecMP3  = "MPA" // payload: 14, aka MPEG-1 Layer III
+
+	CodecELD = "ELD" // AAC-ELD
+
+	CodecAll = "ALL"
+	CodecAny = "ANY"
+)
+
+const PayloadTypeRAW byte = 255
+
+type Producer interface {
+	// GetMedias - return Media(s) with local Media.Direction:
+	// - recvonly for Producer Video/Audio
+	// - sendonly for Producer backchannel
+	GetMedias() []*Media
+
+	// GetTrack - return Receiver, that can only produce rtp.Packet(s)
+	GetTrack(media *Media, codec *Codec) (*Receiver, error)
+
+	Start() error
+	Stop() error
+}
+
+type Consumer interface {
+	// GetMedias - return Media(s) with local Media.Direction:
+	// - sendonly for Consumer Video/Audio
+	// - recvonly for Consumer backchannel
+	GetMedias() []*Media
+
+	AddTrack(media *Media, codec *Codec, track *Receiver) error
+
+	Stop() error
+}
+
+type Mode byte
+
+const (
+	ModeActiveProducer Mode = iota + 1 // typical source (client)
+	ModePassiveConsumer
+	ModePassiveProducer
+	ModeActiveConsumer
+)
+
+func (m Mode) String() string {
+	switch m {
+	case ModeActiveProducer:
+		return "active producer"
+	case ModePassiveConsumer:
+		return "passive consumer"
+	case ModePassiveProducer:
+		return "passive producer"
+	case ModeActiveConsumer:
+		return "active consumer"
+	}
+	return "unknown"
+}
+
+type Info struct {
+	Type       string      `json:"type,omitempty"`
+	URL        string      `json:"url,omitempty"`
+	RemoteAddr string      `json:"remote_addr,omitempty"`
+	UserAgent  string      `json:"user_agent,omitempty"`
+	Medias     []*Media    `json:"medias,omitempty"`
+	Receivers  []*Receiver `json:"receivers,omitempty"`
+	Senders    []*Sender   `json:"senders,omitempty"`
+	Recv       int         `json:"recv,omitempty"`
+	Send       int         `json:"send,omitempty"`
+}
+
+const (
+	UnsupportedCodec    = "unsupported codec"
+	WrongMediaDirection = "wrong media direction"
+)