1 files changed, 80 insertions, 0 deletions
diff --git a/vendor/github.com/pion/sdp/v3/media_description.go b/vendor/github.com/pion/sdp/v3/media_description.go
new file mode 100644
index 0000000..c088507
--- /dev/null
+++ b/vendor/github.com/pion/sdp/v3/media_description.go
@@ -0,0 +1,80 @@
+package sdp
+
+import (
+	"strconv"
+	"strings"
+)
+
+// MediaDescription represents a media type.
+// https://tools.ietf.org/html/rfc4566#section-5.14
+type MediaDescription struct {
+	// m=<media> <port>/<number of ports> <proto> <fmt> ...
+	// https://tools.ietf.org/html/rfc4566#section-5.14
+	MediaName MediaName
+
+	// i=<session description>
+	// https://tools.ietf.org/html/rfc4566#section-5.4
+	MediaTitle *Information
+
+	// c=<nettype> <addrtype> <connection-address>
+	// https://tools.ietf.org/html/rfc4566#section-5.7
+	ConnectionInformation *ConnectionInformation
+
+	// b=<bwtype>:<bandwidth>
+	// https://tools.ietf.org/html/rfc4566#section-5.8
+	Bandwidth []Bandwidth
+
+	// k=<method>
+	// k=<method>:<encryption key>
+	// https://tools.ietf.org/html/rfc4566#section-5.12
+	EncryptionKey *EncryptionKey
+
+	// a=<attribute>
+	// a=<attribute>:<value>
+	// https://tools.ietf.org/html/rfc4566#section-5.13
+	Attributes []Attribute
+}
+
+// Attribute returns the value of an attribute and if it exists
+func (d *MediaDescription) Attribute(key string) (string, bool) {
+	for _, a := range d.Attributes {
+		if a.Key == key {
+			return a.Value, true
+		}
+	}
+	return "", false
+}
+
+// RangedPort supports special format for the media field "m=" port value. If
+// it may be necessary to specify multiple transport ports, the protocol allows
+// to write it as: <port>/<number of ports> where number of ports is a an
+// offsetting range.
+type RangedPort struct {
+	Value int
+	Range *int
+}
+
+func (p *RangedPort) String() string {
+	output := strconv.Itoa(p.Value)
+	if p.Range != nil {
+		output += "/" + strconv.Itoa(*p.Range)
+	}
+	return output
+}
+
+// MediaName describes the "m=" field storage structure.
+type MediaName struct {
+	Media   string
+	Port    RangedPort
+	Protos  []string
+	Formats []string
+}
+
+func (m MediaName) String() string {
+	return strings.Join([]string{
+		m.Media,
+		m.Port.String(),
+		strings.Join(m.Protos, "/"),
+		strings.Join(m.Formats, " "),
+	}, " ")
+}