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56a5827d5c
Allow sending of media via ORTC, examples will be added in the future. But for now all of this state has been pulled out of RTCPeerConnection Resolves #312
72 lines
1.7 KiB
Go
72 lines
1.7 KiB
Go
package webrtc
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import (
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"crypto/rand"
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"encoding/binary"
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"github.com/pions/webrtc/pkg/media"
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"github.com/pions/webrtc/pkg/rtcp"
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"github.com/pions/webrtc/pkg/rtp"
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"github.com/pkg/errors"
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)
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// RTCTrack represents a track that is communicated
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type RTCTrack struct {
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isRawRTP bool
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ID string
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PayloadType uint8
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Kind RTCRtpCodecType
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Label string
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Ssrc uint32
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Codec *RTCRtpCodec
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Packets <-chan *rtp.Packet
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RTCPPackets <-chan rtcp.Packet
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Samples chan<- media.RTCSample
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RawRTP chan<- *rtp.Packet
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}
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// NewRawRTPTrack initializes a new *RTCTrack configured to accept raw *rtp.Packet
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//
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// NB: If the source RTP stream is being broadcast to multiple tracks, each track
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// must receive its own copies of the source packets in order to avoid packet corruption.
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func NewRawRTPTrack(payloadType uint8, ssrc uint32, id, label string) (*RTCTrack, error) {
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if ssrc == 0 {
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return nil, errors.New("SSRC supplied to NewRawRTPTrack() must be non-zero")
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}
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return &RTCTrack{
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isRawRTP: true,
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ID: id,
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PayloadType: payloadType,
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Label: label,
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Ssrc: ssrc,
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}, nil
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}
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// NewRTCSampleTrack initializes a new *RTCTrack configured to accept media.RTCSample
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func NewRTCSampleTrack(payloadType uint8, id, label string, codec *RTCRtpCodec) (*RTCTrack, error) {
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if codec == nil {
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return nil, errors.New("codec supplied to NewRTCSampleTrack() must not be nil")
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}
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buf := make([]byte, 4)
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if _, err := rand.Read(buf); err != nil {
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return nil, errors.New("failed to generate random value")
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}
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return &RTCTrack{
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isRawRTP: false,
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ID: id,
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PayloadType: payloadType,
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Kind: codec.Type,
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Label: label,
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Ssrc: binary.LittleEndian.Uint32(buf),
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Codec: codec,
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}, nil
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}
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