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galene/conn/conn.go
Juliusz Chroboczek f53276b89e Simplify the protocol and the protocol interface.
Split the id field into id and source, where source indicates the sender
of the message and id the entity being sent.  Remove the label request,
just use the offerer's username.  Maintain the username within the
ServerConnection, this removes a parameter from some methods.
2021-01-03 12:17:30 +01:00

45 lines
1.2 KiB
Go

// Package conn defines interfaces for connections and tracks.
package conn
import (
"errors"
"github.com/pion/rtp"
"github.com/pion/webrtc/v3"
)
var ErrConnectionClosed = errors.New("connection is closed")
var ErrKeyframeNeeded = errors.New("keyframe needed")
// Type Up represents a connection in the client to server direction.
type Up interface {
AddLocal(Down) error
DelLocal(Down) bool
Id() string
User() (string, string)
Codecs() []webrtc.RTPCodecCapability
}
// Type UpTrack represents a track in the client to server direction.
type UpTrack interface {
AddLocal(DownTrack) error
DelLocal(DownTrack) bool
Label() string
Codec() webrtc.RTPCodecCapability
// get a recent packet. Returns 0 if the packet is not in cache.
GetRTP(seqno uint16, result []byte) uint16
Nack(conn Up, seqnos []uint16) error
}
// Type Down represents a connection in the server to client direction.
type Down interface {
GetMaxBitrate(now uint64) uint64
}
// Type DownTrack represents a track in the server to client direction.
type DownTrack interface {
WriteRTP(packat *rtp.Packet) error
Accumulate(bytes uint32)
SetTimeOffset(ntp uint64, rtp uint32)
SetCname(string)
}