diff --git a/protocol/rtcp/client.go b/protocol/rtcp/client.go
index ce2ad88d..c32696f1 100644
--- a/protocol/rtcp/client.go
+++ b/protocol/rtcp/client.go
@@ -174,13 +174,13 @@ func (c *Client) send() {
 				SenderSSRC: senderSSRC,
 				Blocks: []ReportBlock{
 					ReportBlock{
-						SSRC:            c.sourceSSRC,
-						FractionLost:    0,
-						PacketsLost:     math.MaxUint32,
-						HighestSequence: c.sequence(),
-						Jitter:          c.jitter(),
-						LSR:             c.lastSenderTs(),
-						DLSR:            c.delay(),
+						SourceIdentifier:  c.sourceSSRC,
+						FractionLost:      0,
+						PacketsLost:       math.MaxUint32,
+						HighestSequence:   c.sequence(),
+						Jitter:            c.jitter(),
+						SenderReportTs:    c.lastSenderTs(),
+						SenderReportDelay: c.delay(),
 					},
 				},
 				Extensions: nil,
diff --git a/protocol/rtcp/client_test.go b/protocol/rtcp/client_test.go
index dd7a6ff4..db515c16 100644
--- a/protocol/rtcp/client_test.go
+++ b/protocol/rtcp/client_test.go
@@ -69,13 +69,13 @@ func TestFormPayload(t *testing.T) {
 		SenderSSRC: 3605043418,
 		Blocks: []ReportBlock{
 			ReportBlock{
-				SSRC:            1873625286,
-				FractionLost:    0,
-				PacketsLost:     math.MaxUint32,
-				HighestSequence: 99080,
-				Jitter:          32,
-				LSR:             3118540074,
-				DLSR:            11257,
+				SourceIdentifier:  1873625286,
+				FractionLost:      0,
+				PacketsLost:       math.MaxUint32,
+				HighestSequence:   99080,
+				Jitter:            32,
+				SenderReportTs:    3118540074,
+				SenderReportDelay: 11257,
 			},
 		},
 		Extensions: nil,
diff --git a/protocol/rtcp/rtcp.go b/protocol/rtcp/rtcp.go
index 109e129e..0e74d08f 100644
--- a/protocol/rtcp/rtcp.go
+++ b/protocol/rtcp/rtcp.go
@@ -39,12 +39,11 @@ const (
 	typeSourceDescription = 202
 )
 
-// SDES Item types.
+// Source Description Item types.
 const (
 	typeCName = 1
 )
 
-// MISC.
 const (
 	reportBlockSize  = 6
 	senderReportSize = 28
@@ -71,13 +70,13 @@ func (r *ReceiverReport) Bytes(buf []byte) []byte {
 
 	idx := 8
 	for _, b := range r.Blocks {
-		binary.BigEndian.PutUint32(buf[idx:], b.SSRC)
+		binary.BigEndian.PutUint32(buf[idx:], b.SourceIdentifier)
 		binary.BigEndian.PutUint32(buf[idx+4:], b.PacketsLost)
 		buf[idx+4] = b.FractionLost
 		binary.BigEndian.PutUint32(buf[idx+8:], b.HighestSequence)
 		binary.BigEndian.PutUint32(buf[idx+12:], b.Jitter)
-		binary.BigEndian.PutUint32(buf[idx+16:], b.LSR)
-		binary.BigEndian.PutUint32(buf[idx+20:], b.DLSR)
+		binary.BigEndian.PutUint32(buf[idx+16:], b.SenderReportTs)
+		binary.BigEndian.PutUint32(buf[idx+20:], b.SenderReportDelay)
 		idx += 24
 	}
 
@@ -91,13 +90,13 @@ func (r *ReceiverReport) Bytes(buf []byte) []byte {
 
 // ReportBlock describes an RTCP report block used in Sender/Receiver Reports.
 type ReportBlock struct {
-	SSRC            uint32 // Source identifier.
-	FractionLost    uint8  // Fraction of packets lost.
-	PacketsLost     uint32 // Cumulative number of packets lost.
-	HighestSequence uint32 // Extended highest sequence number received.
-	Jitter          uint32 // Interarrival jitter.
-	LSR             uint32 // Last sender report timestamp.
-	DLSR            uint32 // Delay since last sender report.
+	SourceIdentifier  uint32 // Source identifier.
+	FractionLost      uint8  // Fraction of packets lost.
+	PacketsLost       uint32 // Cumulative number of packets lost.
+	HighestSequence   uint32 // Extended highest sequence number received.
+	Jitter            uint32 // Interarrival jitter.
+	SenderReportTs    uint32 // Last sender report timestamp.
+	SenderReportDelay uint32 // Delay since last sender report.
 }
 
 // SourceDescription describes a source description RTCP packet.
diff --git a/protocol/rtcp/rtcp_test.go b/protocol/rtcp/rtcp_test.go
index e53d384f..4eb458ce 100644
--- a/protocol/rtcp/rtcp_test.go
+++ b/protocol/rtcp/rtcp_test.go
@@ -57,13 +57,13 @@ func TestReceiverReportBytes(t *testing.T) {
 		SenderSSRC: 3605043418,
 		Blocks: []ReportBlock{
 			ReportBlock{
-				SSRC:            1873625286,
-				FractionLost:    0,
-				PacketsLost:     math.MaxUint32,
-				HighestSequence: 99080,
-				Jitter:          32,
-				LSR:             3118540074,
-				DLSR:            11257,
+				SourceIdentifier:  1873625286,
+				FractionLost:      0,
+				PacketsLost:       math.MaxUint32,
+				HighestSequence:   99080,
+				Jitter:            32,
+				SenderReportTs:    3118540074,
+				SenderReportDelay: 11257,
 			},
 		},
 		Extensions: nil,