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packet_test.go
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// SPDX-FileCopyrightText: 2023 The Pion community <https://pion.ly>
// SPDX-License-Identifier: MIT
package rtp
import (
"bytes"
"encoding/hex"
"errors"
"fmt"
"reflect"
"testing"
)
func TestBasic(t *testing.T) { // nolint:maintidx,cyclop
packet := &Packet{}
if err := packet.Unmarshal([]byte{}); err == nil {
t.Fatal("Unmarshal did not error on zero length packet")
}
rawPkt := []byte{
0x90, 0xe0, 0x69, 0x8f, 0xd9, 0xc2, 0x93, 0xda, 0x1c, 0x64,
0x27, 0x82, 0x00, 0x01, 0x00, 0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0x98, 0x36, 0xbe, 0x88, 0x9e,
}
parsedPacket := &Packet{
Header: Header{
Padding: false,
Marker: true,
Extension: true,
ExtensionProfile: 1,
Extensions: []Extension{
{0, []byte{
0xFF, 0xFF, 0xFF, 0xFF,
}},
},
Version: 2,
PayloadType: 96,
SequenceNumber: 27023,
Timestamp: 3653407706,
SSRC: 476325762,
CSRC: []uint32{},
},
Payload: rawPkt[20:],
PaddingSize: 0,
}
// Unmarshal to the used Packet should work as well.
for i := 0; i < 2; i++ {
t.Run(fmt.Sprintf("Run%d", i+1), func(t *testing.T) {
if err := packet.Unmarshal(rawPkt); err != nil {
t.Error(err)
} else if !reflect.DeepEqual(packet, parsedPacket) {
t.Errorf("TestBasic unmarshal: got %#v, want %#v", packet, parsedPacket)
}
if parsedPacket.Header.MarshalSize() != 20 {
t.Errorf("wrong computed header marshal size")
} else if parsedPacket.MarshalSize() != len(rawPkt) {
t.Errorf("wrong computed marshal size")
}
raw, err := packet.Marshal()
if err != nil {
t.Error(err)
} else if !reflect.DeepEqual(raw, rawPkt) {
t.Errorf("TestBasic marshal: got %#v, want %#v", raw, rawPkt)
}
})
}
// packet with padding
rawPkt = []byte{
0xb0, 0xe0, 0x69, 0x8f, 0xd9, 0xc2, 0x93, 0xda, 0x1c, 0x64,
0x27, 0x82, 0x00, 0x01, 0x00, 0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0x98, 0x36, 0xbe, 0x88, 0x04,
}
parsedPacket = &Packet{
Header: Header{
Padding: true,
Marker: true,
Extension: true,
ExtensionProfile: 1,
Extensions: []Extension{
{0, []byte{
0xFF, 0xFF, 0xFF, 0xFF,
}},
},
Version: 2,
PayloadType: 96,
SequenceNumber: 27023,
Timestamp: 3653407706,
SSRC: 476325762,
CSRC: []uint32{},
},
Payload: rawPkt[20:21],
PaddingSize: 4,
}
if err := packet.Unmarshal(rawPkt); err != nil {
t.Error(err)
} else if !reflect.DeepEqual(packet, parsedPacket) {
t.Errorf("TestBasic padding unmarshal: got %#v, want %#v", packet, parsedPacket)
}
// packet with zero padding following packet with non-zero padding
rawPkt = []byte{
0x90, 0xe0, 0x69, 0x8f, 0xd9, 0xc2, 0x93, 0xda, 0x1c, 0x64,
0x27, 0x82, 0x00, 0x01, 0x00, 0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0x98, 0x36, 0xbe, 0x88, 0x9e,
}
parsedPacket = &Packet{
Header: Header{
Padding: false,
Marker: true,
Extension: true,
ExtensionProfile: 1,
Extensions: []Extension{
{0, []byte{
0xFF, 0xFF, 0xFF, 0xFF,
}},
},
Version: 2,
PayloadType: 96,
SequenceNumber: 27023,
Timestamp: 3653407706,
SSRC: 476325762,
CSRC: []uint32{},
},
Payload: rawPkt[20:],
PaddingSize: 0,
}
if err := packet.Unmarshal(rawPkt); err != nil {
t.Error(err)
} else if !reflect.DeepEqual(packet, parsedPacket) {
t.Errorf("TestBasic zero padding unmarshal: got %#v, want %#v", packet, parsedPacket)
}
// packet with only padding
rawPkt = []byte{
0xb0, 0xe0, 0x69, 0x8f, 0xd9, 0xc2, 0x93, 0xda, 0x1c, 0x64,
0x27, 0x82, 0x00, 0x01, 0x00, 0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0x98, 0x36, 0xbe, 0x88, 0x05,
}
parsedPacket = &Packet{
Header: Header{
Padding: true,
Marker: true,
Extension: true,
ExtensionProfile: 1,
Extensions: []Extension{
{0, []byte{
0xFF, 0xFF, 0xFF, 0xFF,
}},
},
Version: 2,
PayloadType: 96,
SequenceNumber: 27023,
Timestamp: 3653407706,
SSRC: 476325762,
CSRC: []uint32{},
},
Payload: []byte{},
PaddingSize: 5,
}
if err := packet.Unmarshal(rawPkt); err != nil {
t.Error(err)
} else if !reflect.DeepEqual(packet, parsedPacket) {
t.Errorf("TestBasic padding only unmarshal: got %#v, want %#v", packet, parsedPacket)
}
if len(packet.Payload) != 0 {
t.Errorf("Unmarshal of padding only packet has payload of non-zero length: %d", len(packet.Payload))
}
// packet with excessive padding
rawPkt = []byte{
0xb0, 0xe0, 0x69, 0x8f, 0xd9, 0xc2, 0x93, 0xda, 0x1c, 0x64,
0x27, 0x82, 0x00, 0x01, 0x00, 0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0x98, 0x36, 0xbe, 0x88, 0x06,
}
parsedPacket = &Packet{
Header: Header{
Padding: true,
Marker: true,
Extension: true,
ExtensionProfile: 1,
Extensions: []Extension{
{0, []byte{
0xFF, 0xFF, 0xFF, 0xFF,
}},
},
Version: 2,
PayloadType: 96,
SequenceNumber: 27023,
Timestamp: 3653407706,
SSRC: 476325762,
CSRC: []uint32{},
},
Payload: []byte{},
PaddingSize: 0,
}
err := packet.Unmarshal(rawPkt)
if err == nil {
t.Fatal("Unmarshal did not error on packet with excessive padding")
}
if !errors.Is(err, errTooSmall) {
t.Errorf("Expected error: %v, got: %v", errTooSmall, err)
}
// marshal packet with padding
rawPkt = []byte{
0xb0, 0xe0, 0x69, 0x8f, 0xd9, 0xc2, 0x93, 0xda, 0x1c, 0x64,
0x27, 0x82, 0x00, 0x01, 0x00, 0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0x98, 0x00, 0x00, 0x00, 0x04,
}
parsedPacket = &Packet{
Header: Header{
Padding: true,
Marker: true,
Extension: true,
ExtensionProfile: 1,
Extensions: []Extension{
{0, []byte{
0xFF, 0xFF, 0xFF, 0xFF,
}},
},
Version: 2,
PayloadType: 96,
SequenceNumber: 27023,
Timestamp: 3653407706,
SSRC: 476325762,
CSRC: []uint32{},
},
Payload: rawPkt[20:21],
PaddingSize: 4,
}
buf, err := parsedPacket.Marshal()
if err != nil {
t.Error(err)
}
if !reflect.DeepEqual(buf, rawPkt) {
t.Errorf("TestBasic padding marshal: got %#v, want %#v", buf, rawPkt)
}
// marshal packet with padding only
rawPkt = []byte{
0xb0, 0xe0, 0x69, 0x8f, 0xd9, 0xc2, 0x93, 0xda, 0x1c, 0x64,
0x27, 0x82, 0x00, 0x01, 0x00, 0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x05,
}
parsedPacket = &Packet{
Header: Header{
Padding: true,
Marker: true,
Extension: true,
ExtensionProfile: 1,
Extensions: []Extension{
{0, []byte{
0xFF, 0xFF, 0xFF, 0xFF,
}},
},
Version: 2,
PayloadType: 96,
SequenceNumber: 27023,
Timestamp: 3653407706,
SSRC: 476325762,
CSRC: []uint32{},
},
Payload: []byte{},
PaddingSize: 5,
}
buf, err = parsedPacket.Marshal()
if err != nil {
t.Error(err)
}
if !reflect.DeepEqual(buf, rawPkt) {
t.Errorf("TestBasic padding marshal: got %#v, want %#v", buf, rawPkt)
}
// marshal packet with padding only without setting Padding explicitly in Header
rawPkt = []byte{
0xb0, 0xe0, 0x69, 0x8f, 0xd9, 0xc2, 0x93, 0xda, 0x1c, 0x64,
0x27, 0x82, 0x00, 0x01, 0x00, 0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x05,
}
parsedPacket = &Packet{
Header: Header{
Marker: true,
Extension: true,
ExtensionProfile: 1,
Extensions: []Extension{
{0, []byte{
0xFF, 0xFF, 0xFF, 0xFF,
}},
},
Version: 2,
Padding: true,
PayloadType: 96,
SequenceNumber: 27023,
Timestamp: 3653407706,
SSRC: 476325762,
CSRC: []uint32{},
},
Payload: []byte{},
PaddingSize: 5,
}
buf, err = parsedPacket.Marshal()
if err != nil {
t.Error(err)
}
if !reflect.DeepEqual(buf, rawPkt) {
t.Errorf("TestBasic padding marshal: got %#v, want %#v", buf, rawPkt)
}
}
func TestExtension(t *testing.T) {
packet := &Packet{}
missingExtensionPkt := []byte{
0x90, 0x60, 0x69, 0x8f, 0xd9, 0xc2, 0x93, 0xda, 0x1c, 0x64,
0x27, 0x82,
}
if err := packet.Unmarshal(missingExtensionPkt); err == nil {
t.Fatal("Unmarshal did not error on packet with missing extension data")
}
invalidExtensionLengthPkt := []byte{
0x90, 0x60, 0x69, 0x8f, 0xd9, 0xc2, 0x93, 0xda, 0x1c, 0x64,
0x27, 0x82, 0x99, 0x99, 0x99, 0x99,
}
if err := packet.Unmarshal(invalidExtensionLengthPkt); err == nil {
t.Fatal("Unmarshal did not error on packet with invalid extension length")
}
packet = &Packet{
Header: Header{
Extension: true,
ExtensionProfile: 3,
Extensions: []Extension{
{0, []byte{
0,
}},
},
},
Payload: []byte{},
}
if _, err := packet.Marshal(); err == nil {
t.Fatal("Marshal did not error on packet with invalid extension length")
}
}
func TestRFC8285OneByteExtension(t *testing.T) {
packet := &Packet{}
rawPkt := []byte{
0x90, 0xe0, 0x69, 0x8f, 0xd9, 0xc2, 0x93, 0xda, 0x1c, 0x64,
0x27, 0x82, 0xBE, 0xDE, 0x00, 0x01, 0x50, 0xAA, 0x00, 0x00,
0x98, 0x36, 0xbe, 0x88, 0x9e,
}
if err := packet.Unmarshal(rawPkt); err != nil {
t.Fatal("Unmarshal err for valid extension")
}
packet = &Packet{
Header: Header{
Marker: true,
Extension: true,
ExtensionProfile: 0xBEDE,
Extensions: []Extension{
{5, []byte{
0xAA,
}},
},
Version: 2,
PayloadType: 96,
SequenceNumber: 27023,
Timestamp: 3653407706,
SSRC: 476325762,
CSRC: []uint32{},
},
Payload: rawPkt[20:],
}
dstData, _ := packet.Marshal()
if !bytes.Equal(dstData, rawPkt) {
t.Errorf("Marshal failed raw \nMarshaled:\n%s\nrawPkt:\n%s", hex.Dump(dstData), hex.Dump(rawPkt))
}
}
func TestRFC8285OneByteTwoExtensionOfTwoBytes(t *testing.T) {
packet := &Packet{}
// 0 1 2 3
// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | 0xBE | 0xDE | length=1 |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | ID | L=0 | data | ID | L=0 | data...
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
rawPkt := []byte{
0x90, 0xe0, 0x69, 0x8f, 0xd9, 0xc2, 0x93, 0xda, 0x1c, 0x64,
0x27, 0x82, 0xBE, 0xDE, 0x00, 0x01, 0x10, 0xAA, 0x20, 0xBB,
// Payload
0x98, 0x36, 0xbe, 0x88, 0x9e,
}
if err := packet.Unmarshal(rawPkt); err != nil {
t.Fatal("Unmarshal err for valid extension")
}
ext1 := packet.GetExtension(1)
ext1Expect := []byte{0xAA}
if !bytes.Equal(ext1, ext1Expect) {
t.Errorf("Extension has incorrect data. Got: %+v, Expected: %+v", ext1, ext1Expect)
}
ext2 := packet.GetExtension(2)
ext2Expect := []byte{0xBB}
if !bytes.Equal(ext2, ext2Expect) {
t.Errorf("Extension has incorrect data. Got: %+v, Expected: %+v", ext2, ext2Expect)
}
// Test Marshal
packet = &Packet{
Header: Header{
Marker: true,
Extension: true,
ExtensionProfile: 0xBEDE,
Extensions: []Extension{
{1, []byte{
0xAA,
}},
{2, []byte{
0xBB,
}},
},
Version: 2,
PayloadType: 96,
SequenceNumber: 27023,
Timestamp: 3653407706,
SSRC: 476325762,
CSRC: []uint32{},
},
Payload: rawPkt[20:],
}
dstData, _ := packet.Marshal()
if !bytes.Equal(dstData, rawPkt) {
t.Errorf("Marshal failed raw \nMarshaled:\n%s\nrawPkt:\n%s", hex.Dump(dstData), hex.Dump(rawPkt))
}
}
func TestRFC8285OneByteMultipleExtensionsWithPadding(t *testing.T) {
packet := &Packet{}
// 0 1 2 3
// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | 0xBE | 0xDE | length=3 |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | ID | L=0 | data | ID | L=1 | data...
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// ...data | 0 (pad) | 0 (pad) | ID | L=3 |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | data |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
rawPkt := []byte{
0x90, 0xe0, 0x69, 0x8f, 0xd9, 0xc2, 0x93, 0xda, 0x1c, 0x64,
0x27, 0x82, 0xBE, 0xDE, 0x00, 0x03, 0x10, 0xAA, 0x21, 0xBB,
0xBB, 0x00, 0x00, 0x33, 0xCC, 0xCC, 0xCC, 0xCC,
// Payload
0x98, 0x36, 0xbe, 0x88, 0x9e,
}
if err := packet.Unmarshal(rawPkt); err != nil {
t.Fatal("Unmarshal err for valid extension")
}
ext1 := packet.GetExtension(1)
ext1Expect := []byte{0xAA}
if !bytes.Equal(ext1, ext1Expect) {
t.Errorf("Extension has incorrect data. Got: %v+, Expected: %v+", ext1, ext1Expect)
}
ext2 := packet.GetExtension(2)
ext2Expect := []byte{0xBB, 0xBB}
if !bytes.Equal(ext2, ext2Expect) {
t.Errorf("Extension has incorrect data. Got: %v+, Expected: %v+", ext2, ext2Expect)
}
ext3 := packet.GetExtension(3)
ext3Expect := []byte{0xCC, 0xCC, 0xCC, 0xCC}
if !bytes.Equal(ext3, ext3Expect) {
t.Errorf("Extension has incorrect data. Got: %v+, Expected: %v+", ext3, ext3Expect)
}
rawPktReMarshal := []byte{
0x90, 0xe0, 0x69, 0x8f, 0xd9, 0xc2, 0x93, 0xda, 0x1c, 0x64,
0x27, 0x82, 0xBE, 0xDE, 0x00, 0x03, 0x10, 0xAA, 0x21, 0xBB,
0xBB, 0x33, 0xCC, 0xCC, 0xCC, 0xCC, 0x00, 0x00, // padding is moved to the end by re-marshaling
// Payload
0x98, 0x36, 0xbe, 0x88, 0x9e,
}
dstBuf := map[string][]byte{
"CleanBuffer": make([]byte, 1000),
"DirtyBuffer": make([]byte, 1000),
}
for i := range dstBuf["DirtyBuffer"] {
dstBuf["DirtyBuffer"][i] = 0xFF
}
for name, buf := range dstBuf {
buf := buf
t.Run(name, func(t *testing.T) {
n, err := packet.MarshalTo(buf)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(buf[:n], rawPktReMarshal) {
t.Errorf("Marshal failed raw \nMarshaled:\n%s\nrawPkt:\n%s", hex.Dump(buf[:n]), hex.Dump(rawPktReMarshal))
}
})
}
}
func TestRFC8285OneByteMultipleExtensions(t *testing.T) {
// 0 1 2 3
// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | 0xBE | 0xDE | length=3 |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | ID=1 | L=0 | data | ID=2 | L=1 | data...
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// ...data | ID=3 | L=3 | data...
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// ...data |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
rawPkt := []byte{
0x90, 0xe0, 0x69, 0x8f, 0xd9, 0xc2, 0x93, 0xda, 0x1c, 0x64,
0x27, 0x82, 0xBE, 0xDE, 0x00, 0x03, 0x10, 0xAA, 0x21, 0xBB,
0xBB, 0x33, 0xCC, 0xCC, 0xCC, 0xCC, 0x00, 0x00,
// Payload
0x98, 0x36, 0xbe, 0x88, 0x9e,
}
packet := &Packet{
Header: Header{
Marker: true,
Extension: true,
ExtensionProfile: 0xBEDE,
Extensions: []Extension{
{1, []byte{
0xAA,
}},
{2, []byte{
0xBB, 0xBB,
}},
{3, []byte{
0xCC, 0xCC, 0xCC, 0xCC,
}},
},
Version: 2,
PayloadType: 96,
SequenceNumber: 27023,
Timestamp: 3653407706,
SSRC: 476325762,
CSRC: []uint32{},
},
Payload: rawPkt[28:],
}
dstData, _ := packet.Marshal()
if !bytes.Equal(dstData, rawPkt) {
t.Errorf("Marshal failed raw \nMarshaled:\n%s\nrawPkt:\n%s", hex.Dump(dstData), hex.Dump(rawPkt))
}
}
func TestRFC8285TwoByteExtension(t *testing.T) {
packet := &Packet{}
rawPkt := []byte{
0x90, 0xe0, 0x69, 0x8f, 0xd9, 0xc2, 0x93, 0xda, 0x1c, 0x64,
0x27, 0x82, 0x10, 0x00, 0x00, 0x07, 0x05, 0x18, 0xAA, 0xAA,
0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
0xAA, 0xAA, 0x00, 0x00, 0x98, 0x36, 0xbe, 0x88, 0x9e,
}
if err := packet.Unmarshal(rawPkt); err != nil {
t.Fatal("Unmarshal err for valid extension")
}
packet = &Packet{
Header: Header{
Marker: true,
Extension: true,
ExtensionProfile: 0x1000,
Extensions: []Extension{
{5, []byte{
0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
}},
},
Version: 2,
PayloadType: 96,
SequenceNumber: 27023,
Timestamp: 3653407706,
SSRC: 476325762,
CSRC: []uint32{},
},
Payload: rawPkt[44:],
}
dstData, _ := packet.Marshal()
if !bytes.Equal(dstData, rawPkt) {
t.Errorf("Marshal failed raw \nMarshaled:\n%s\nrawPkt:\n%s", hex.Dump(dstData), hex.Dump(rawPkt))
}
}
func TestRFC8285TwoByteMultipleExtensionsWithPadding(t *testing.T) {
packet := &Packet{}
// 0 1 2 3
// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | 0x10 | 0x00 | length=3 |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | ID=1 | L=0 | ID=2 | L=1 |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | data | 0 (pad) | ID=3 | L=4 |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | data |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
rawPkt := []byte{
0x90, 0xe0, 0x69, 0x8f, 0xd9, 0xc2, 0x93, 0xda, 0x1c, 0x64,
0x27, 0x82, 0x10, 0x00, 0x00, 0x03, 0x01, 0x00, 0x02, 0x01,
0xBB, 0x00, 0x03, 0x04, 0xCC, 0xCC, 0xCC, 0xCC, 0x98, 0x36,
0xbe, 0x88, 0x9e,
}
if err := packet.Unmarshal(rawPkt); err != nil {
t.Fatal("Unmarshal err for valid extension")
}
ext1 := packet.GetExtension(1)
ext1Expect := []byte{}
if !bytes.Equal(ext1, ext1Expect) {
t.Errorf("Extension has incorrect data. Got: %v+, Expected: %v+", ext1, ext1Expect)
}
ext2 := packet.GetExtension(2)
ext2Expect := []byte{0xBB}
if !bytes.Equal(ext2, ext2Expect) {
t.Errorf("Extension has incorrect data. Got: %v+, Expected: %v+", ext2, ext2Expect)
}
ext3 := packet.GetExtension(3)
ext3Expect := []byte{0xCC, 0xCC, 0xCC, 0xCC}
if !bytes.Equal(ext3, ext3Expect) {
t.Errorf("Extension has incorrect data. Got: %v+, Expected: %v+", ext3, ext3Expect)
}
}
func TestRFC8285TwoByteMultipleExtensionsWithLargeExtension(t *testing.T) {
// 0 1 2 3
// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | 0x10 | 0x00 | length=3 |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | ID=1 | L=0 | ID=2 | L=1 |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | data | ID=3 | L=17 | data...
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// ...data...
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// ...data...
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// ...data...
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// ...data... |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
rawPkt := []byte{
0x90, 0xe0, 0x69, 0x8f, 0xd9, 0xc2, 0x93, 0xda, 0x1c, 0x64,
0x27, 0x82, 0x10, 0x00, 0x00, 0x06, 0x01, 0x00, 0x02, 0x01,
0xBB, 0x03, 0x11, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
// Payload
0x98, 0x36, 0xbe, 0x88, 0x9e,
}
packet := &Packet{
Header: Header{
Marker: true,
Extension: true,
ExtensionProfile: 0x1000,
Extensions: []Extension{
{1, []byte{}},
{2, []byte{
0xBB,
}},
{3, []byte{
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
}},
},
Version: 2,
PayloadType: 96,
SequenceNumber: 27023,
Timestamp: 3653407706,
SSRC: 476325762,
CSRC: []uint32{},
},
Payload: rawPkt[40:],
}
dstData, _ := packet.Marshal()
if !bytes.Equal(dstData, rawPkt) {
t.Errorf("Marshal failed raw \nMarshaled: %+v,\nrawPkt: %+v", dstData, rawPkt)
}
}
func TestRFC8285GetExtensionReturnsNilWhenExtensionsDisabled(t *testing.T) {
payload := []byte{
// Payload
0x98, 0x36, 0xbe, 0x88, 0x9e,
}
packet := &Packet{
Header: Header{
Marker: true,
Extension: false,
Version: 2,
PayloadType: 96,
SequenceNumber: 27023,
Timestamp: 3653407706,
SSRC: 476325762,
CSRC: []uint32{},
},
Payload: payload,
}
err := packet.GetExtension(1)
if err != nil {
t.Error("Should return nil on GetExtension when h.Extension: false")
}
}
func TestRFC8285DelExtension(t *testing.T) {
payload := []byte{
// Payload
0x98, 0x36, 0xbe, 0x88, 0x9e,
}
packet := &Packet{
Header: Header{
Marker: true,
Extension: true,
ExtensionProfile: 0xBEDE,
Extensions: []Extension{
{1, []byte{
0xAA,
}},
},
Version: 2,
PayloadType: 96,
SequenceNumber: 27023,
Timestamp: 3653407706,
SSRC: 476325762,
CSRC: []uint32{},
},
Payload: payload,
}
ext := packet.GetExtension(1)
if ext == nil {
t.Error("Extension should exist")
}
err := packet.DelExtension(1)
if err != nil {
t.Error("Should successfully delete extension")
}
ext = packet.GetExtension(1)
if ext != nil {
t.Error("Extension should not exist")
}
err = packet.DelExtension(1)
if err == nil {
t.Error("Should return error when deleting extension that doesnt exist")
}
}
func TestRFC8285GetExtensionIDs(t *testing.T) {
payload := []byte{
// Payload
0x98, 0x36, 0xbe, 0x88, 0x9e,
}
packet := &Packet{
Header: Header{
Marker: true,
Extension: true,
ExtensionProfile: 0xBEDE,
Extensions: []Extension{
{1, []byte{
0xAA,
}},
{2, []byte{
0xBB,
}},
},
Version: 2,
PayloadType: 96,
SequenceNumber: 27023,
Timestamp: 3653407706,
SSRC: 476325762,
CSRC: []uint32{},
},
Payload: payload,
}
ids := packet.GetExtensionIDs()
if ids == nil {
t.Error("Extension should exist")
}
if len(ids) != len(packet.Extensions) {
t.Errorf(
"The number of IDs should be equal to the number of extensions,want=%d,have=%d",
len(packet.Extensions),
len(ids),
)
}
for _, id := range ids {
ext := packet.GetExtension(id)
if ext == nil {
t.Error("Extension should exist")
}
}
}
func TestRFC8285GetExtensionIDsReturnsErrorWhenExtensionsDisabled(t *testing.T) {
payload := []byte{
// Payload
0x98, 0x36, 0xbe, 0x88, 0x9e,
}
packet := &Packet{
Header: Header{
Marker: true,
Extension: false,
Version: 2,
PayloadType: 96,
SequenceNumber: 27023,
Timestamp: 3653407706,
SSRC: 476325762,
CSRC: []uint32{},
},
Payload: payload,
}
ids := packet.GetExtensionIDs()
if ids != nil {
t.Error("Should return nil on GetExtensionIDs when h.Extensions is nil")
}
}
func TestRFC8285DelExtensionReturnsErrorWhenExtensionsDisabled(t *testing.T) {
payload := []byte{
// Payload
0x98, 0x36, 0xbe, 0x88, 0x9e,
}
packet := &Packet{
Header: Header{
Marker: true,
Extension: false,
Version: 2,
PayloadType: 96,
SequenceNumber: 27023,
Timestamp: 3653407706,
SSRC: 476325762,
CSRC: []uint32{},
},
Payload: payload,
}
err := packet.DelExtension(1)
if err == nil {
t.Error("Should return error on DelExtension when h.Extension: false")
}
}
func TestRFC8285OneByteSetExtensionShouldEnableExensionsWhenAdding(t *testing.T) {
payload := []byte{
// Payload
0x98, 0x36, 0xbe, 0x88, 0x9e,
}
packet := &Packet{
Header: Header{
Marker: true,
Extension: false,
Version: 2,
PayloadType: 96,
SequenceNumber: 27023,
Timestamp: 3653407706,
SSRC: 476325762,
CSRC: []uint32{},
},
Payload: payload,
}
extension := []byte{0xAA, 0xAA}
err := packet.SetExtension(1, extension)
if err != nil {
t.Error("Error setting extension")
}
if packet.Extension != true {
t.Error("Extension should be set to true")
}
if packet.ExtensionProfile != 0xBEDE {
t.Error("Extension profile should be set to 0xBEDE")
}
if len(packet.Extensions) != 1 {
t.Error("Extensions should be set to 1")
}
if !bytes.Equal(packet.GetExtension(1), extension) {
t.Error("Extension value is not set")
}
}
func TestRFC8285OneByteSetExtensionShouldSetCorrectExtensionProfileFor16ByteExtension(t *testing.T) {
payload := []byte{
// Payload
0x98, 0x36, 0xbe, 0x88, 0x9e,
}
packet := &Packet{
Header: Header{
Marker: true,
Extension: false,
Version: 2,
PayloadType: 96,
SequenceNumber: 27023,
Timestamp: 3653407706,
SSRC: 476325762,
CSRC: []uint32{},
},
Payload: payload,
}
extension := []byte{
0xAA, 0xAA, 0xAA, 0xAA,
0xAA, 0xAA, 0xAA, 0xAA,
0xAA, 0xAA, 0xAA, 0xAA,
0xAA, 0xAA, 0xAA, 0xAA,
}
err := packet.SetExtension(1, extension)
if err != nil {
t.Error("Error setting extension")
}
if packet.ExtensionProfile != 0xBEDE {
t.Error("Extension profile should be set to 0xBEDE")
}
}
func TestRFC8285OneByteSetExtensionShouldUpdateExistingExension(t *testing.T) {
payload := []byte{
// Payload
0x98, 0x36, 0xbe, 0x88, 0x9e,
}
packet := &Packet{
Header: Header{
Marker: true,
Extension: true,
ExtensionProfile: 0xBEDE,
Extensions: []Extension{
{1, []byte{
0xAA,
}},
},
Version: 2,
PayloadType: 96,
SequenceNumber: 27023,
Timestamp: 3653407706,
SSRC: 476325762,
CSRC: []uint32{},
},
Payload: payload,
}
if !bytes.Equal(packet.GetExtension(1), []byte{0xAA}) {
t.Error("Extension value not initialize properly")
}
extension := []byte{0xBB}
err := packet.SetExtension(1, extension)
if err != nil {
t.Error("Error setting extension")
}
if !bytes.Equal(packet.GetExtension(1), extension) {
t.Error("Extension value was not set")
}
}
func TestRFC8285OneByteSetExtensionShouldErrorWhenInvalidIDProvided(t *testing.T) {
payload := []byte{
// Payload
0x98, 0x36, 0xbe, 0x88, 0x9e,
}