improve.

go.mod

@@ -12,10 +12,12 @@ require (
 	github.com/improbable-eng/grpc-web v0.13.0
 	github.com/nats-io/nats-server/v2 v2.1.9
 	github.com/nats-io/nats.go v1.10.0
+	github.com/notedit/sdp v0.0.4
 	github.com/pion/ion-avp v1.8.1
 	github.com/pion/ion-log v1.0.0
 	github.com/pion/ion-sfu v1.9.3
 	github.com/pion/webrtc/v3 v3.0.10
+	github.com/pixelbender/go-sdp v1.1.0
 	github.com/soheilhy/cmux v0.1.4
 	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/spf13/viper v1.7.1

go.sum

@@ -14,6 +14,8 @@ dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7
 github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
+github.com/Jeffail/gabs v1.1.1 h1:V0uzR08Hj22EX8+8QMhyI9sX2hwRu+/RJhJUmnwda/E=
+github.com/Jeffail/gabs v1.1.1/go.mod h1:6xMvQMK4k33lb7GUUpaAPh6nKMmemQeg5d4gn7/bOXc=
 github.com/Knetic/govaluate v3.0.1-0.20171022003610-9aa49832a739+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
 github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo=
@@ -270,6 +272,8 @@ github.com/nats-io/nkeys v0.1.4 h1:aEsHIssIk6ETN5m2/MD8Y4B2X7FfXrBAUdkyRvbVYzA=
 github.com/nats-io/nkeys v0.1.4/go.mod h1:XdZpAbhgyyODYqjTawOnIOI7VlbKSarI9Gfy1tqEu/s=
 github.com/nats-io/nuid v1.0.1 h1:5iA8DT8V7q8WK2EScv2padNa/rTESc1KdnPw4TC2paw=
 github.com/nats-io/nuid v1.0.1/go.mod h1:19wcPz3Ph3q0Jbyiqsd0kePYG7A95tJPxeL+1OSON2c=
+github.com/notedit/sdp v0.0.4 h1:P4L8HbZ8SfzrRDE2m3zPnkHhcSdr/0sZkapKo0lyDJs=
+github.com/notedit/sdp v0.0.4/go.mod h1:v7SdJxYpW6sY8RhA2KX14mmIHXKC0Kl/XrEQwaQJ7lM=
 github.com/nxadm/tail v1.4.4 h1:DQuhQpB1tVlglWS2hLQ5OV6B5r8aGxSrPc5Qo6uTN78=
 github.com/nxadm/tail v1.4.4/go.mod h1:kenIhsEOeOJmVchQTgglprH7qJGnHDVpk1VPCcaMI8A=
 github.com/oklog/oklog v0.3.2/go.mod h1:FCV+B7mhrz4o+ueLpx+KqkyXRGMWOYEvfiXtdGtbWGs=
@@ -355,6 +359,8 @@ github.com/pion/udp v0.1.0/go.mod h1:BPELIjbwE9PRbd/zxI/KYBnbo7B6+oA6YuEaNE8lths
 github.com/pion/webrtc/v3 v3.0.4/go.mod h1:1TmFSLpPYFTFXFHPtoq9eGP1ASTa9LC6FBh7sUY8cd4=
 github.com/pion/webrtc/v3 v3.0.10 h1:hti6k0DeN4tbQmAZiA8v6OvdkANQGw+R3nyqk9+dnz0=
 github.com/pion/webrtc/v3 v3.0.10/go.mod h1:KdEZWLmBnxB2Qj4FtUb9vi1sIpqsHOisI7L6ggQBD0A=
+github.com/pixelbender/go-sdp v1.1.0 h1:rkm9aFBNKrnB+YGfhLmAkal3pC8XYXb9h+172PlrCBU=
+github.com/pixelbender/go-sdp v1.1.0/go.mod h1:6IBlz9+BrUHoFTea7gcp4S54khtOhjCW/nVDLhmZBAs=
 github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=