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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| package util | ||
|
|
||
| import ( | ||
| "strings" | ||
|
|
||
| log "github.com/pion/ion-log" | ||
| "github.com/pion/ion/pkg/grpc/ion" | ||
| "github.com/pixelbender/go-sdp/sdp" | ||
| ) | ||
|
|
||
| //ParseSDP . | ||
| func ParseSDP(sdpstr string) ([]*ion.Stream, error) { | ||
| sess, err := sdp.ParseString(sdpstr) | ||
|
|
||
| if err != nil { | ||
| log.Errorf("sdp.Parse erro %v", err) | ||
| return nil, err | ||
| } | ||
|
|
||
| streams := make(map[string]*ion.Stream) | ||
| for _, m := range sess.Media { | ||
| //fmt.Printf("type = %v\n", m.Type) | ||
|
|
||
| if m.Type == "audio" || m.Type == "video" { | ||
| msid := m.Attributes.Get("msid") | ||
| //fmt.Printf("msid id = %v\n", msid) | ||
|
|
||
| strs := strings.Split(msid, " ") | ||
| streamID := strs[0] | ||
| trackID := msid | ||
| trackLabel := strs[1] | ||
|
|
||
| track := &ion.Track{ | ||
| Kind: m.Type, | ||
| Id: trackID, | ||
| Label: trackLabel, | ||
| } | ||
|
|
||
| simulcast := make(map[string]string) | ||
| for _, attr := range m.Attributes { | ||
| //fmt.Printf("attr name = %v, value = %v\n", attr.Name, attr.Value) | ||
|
|
||
| if attr.Name == "rid" { | ||
| strs := strings.Split(attr.Value, " ") | ||
| rid := strs[0] | ||
| dir := strs[1] | ||
| //fmt.Printf("rid: rid = %v, dir = %v\n", rid, dir) | ||
| simulcast[rid] = dir | ||
| } | ||
| /* | ||
| if attr.Name == "simulcast" { | ||
| strs := strings.Split(attr.Value, " ") | ||
| dir := strs[0] | ||
| rids := strs[1] | ||
| fmt.Printf("simulcast: rids = %v, dir = %v\n", rids, dir) | ||
| } | ||
| */ | ||
| } | ||
| track.Simulcast = simulcast | ||
|
|
||
| if stream, ok := streams[streamID]; ok { | ||
| stream.Tracks = append(stream.Tracks, track) | ||
| } else { | ||
| stream = &ion.Stream{ | ||
| Id: streamID, | ||
| } | ||
| stream.Tracks = append(stream.Tracks, track) | ||
| streams[streamID] = stream | ||
| } | ||
| } | ||
| } | ||
|
|
||
| var list []*ion.Stream | ||
| for _, stream := range streams { | ||
| //fmt.Printf("%v\n", stream.String()) | ||
| list = append(list, stream) | ||
| } | ||
|
|
||
| return list, nil | ||
| } |
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