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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 (
"fmt"
"testing"
"github.com/stretchr/testify/assert"
)
func TestBasic(t *testing.T) { // nolint:maintidx,cyclop
packet := &Packet{}
assert.Error(t, packet.Unmarshal([]byte{}), "Unmarshal did not error on zero length packet")
assert.ErrorIs(t, packet.Unmarshal([]byte{}), errHeaderSizeInsufficient)
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) {
assert.NoError(t, packet.Unmarshal(rawPkt))
assert.Equal(t, packet, parsedPacket)
assert.Equal(t, packet.Header.MarshalSize(), 20, "wrong computed header marshal size")
assert.Equal(t, packet.MarshalSize(), len(rawPkt), "wrong computed marshal size")
raw, err := packet.Marshal()
assert.NoError(t, err)
assert.Equal(t, rawPkt, raw)
})
}
// 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,
}
assert.NoError(t, packet.Unmarshal(rawPkt))
assert.Equal(t, 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,
}
assert.NoError(t, packet.Unmarshal(rawPkt))
assert.Equal(t, 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,
}
assert.NoError(t, packet.Unmarshal(rawPkt))
assert.Equal(t, packet, parsedPacket)
assert.Len(t, packet.Payload, 0, "Unmarshal of padding only packet has payload of non-zero length")
// 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)
assert.Error(t, err, "Unmarshal did not error on packet with excessive padding")
assert.ErrorIs(t, err, errTooSmall)
// 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()
assert.NoError(t, err)
assert.Equal(t, rawPkt, buf)
// 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()
assert.NoError(t, err)
assert.Equal(t, rawPkt, buf)
// 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()
assert.NoError(t, err)
assert.Equal(t, rawPkt, buf)
}
func TestExtension(t *testing.T) {
packet := &Packet{}
missingExtensionPkt := []byte{
0x90, 0x60, 0x69, 0x8f, 0xd9, 0xc2, 0x93, 0xda, 0x1c, 0x64,
0x27, 0x82,
}
assert.Error(
t, packet.Unmarshal(missingExtensionPkt),
"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,
}
assert.Error(
t, packet.Unmarshal(invalidExtensionLengthPkt),
"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{},
}
_, err := packet.Marshal()
assert.Error(t, err, "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,
}
assert.NoError(t, packet.Unmarshal(rawPkt))
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()
assert.Equal(t, rawPkt, dstData)
}
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,
}
assert.NoError(t, packet.Unmarshal(rawPkt))
ext1 := packet.GetExtension(1)
ext1Expect := []byte{0xAA}
assert.Equal(t, ext1Expect, ext1, "Extension has incorrect data")
ext2 := packet.GetExtension(2)
ext2Expect := []byte{0xBB}
assert.Equal(t, ext2Expect, ext2, "Extension has incorrect data")
// 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()
assert.Equal(t, rawPkt, dstData)
}
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,
}
assert.NoError(t, packet.Unmarshal(rawPkt))
ext1 := packet.GetExtension(1)
ext1Expect := []byte{0xAA}
assert.Equal(t, ext1Expect, ext1, "Extension has incorrect data")
ext2 := packet.GetExtension(2)
ext2Expect := []byte{0xBB, 0xBB}
assert.Equal(t, ext2Expect, ext2, "Extension has incorrect data")
ext3 := packet.GetExtension(3)
ext3Expect := []byte{0xCC, 0xCC, 0xCC, 0xCC}
assert.Equal(t, ext3Expect, ext3, "Extension has incorrect data")
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)
assert.NoError(t, err)
assert.Equal(t, rawPktReMarshal, buf[:n])
})
}
}
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()
assert.Equal(t, rawPkt, dstData)
}
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,
}
assert.NoError(t, packet.Unmarshal(rawPkt))
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()
assert.Equal(t, rawPkt, dstData)
}
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,
}
assert.NoError(t, packet.Unmarshal(rawPkt))
ext1 := packet.GetExtension(1)
ext1Expect := []byte{}
assert.Equal(t, ext1Expect, ext1, "Extension has incorrect data")
ext2 := packet.GetExtension(2)
ext2Expect := []byte{0xBB}
assert.Equal(t, ext2Expect, ext2, "Extension has incorrect data")
ext3 := packet.GetExtension(3)
ext3Expect := []byte{0xCC, 0xCC, 0xCC, 0xCC}
assert.Equal(t, ext3Expect, ext3, "Extension has incorrect data")
}
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()
assert.Equal(t, rawPkt, dstData)
}
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,
}
assert.Nil(t, packet.GetExtension(1), "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,
}
assert.NotNil(t, packet.GetExtension(1), "Extension should exist")
assert.NoError(t, packet.DelExtension(1), "Should successfully delete extension")
assert.Nil(t, packet.GetExtension(1), "Extension should not exist")
assert.Error(t, packet.DelExtension(1), "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()
assert.NotNil(t, ids, "Extension should exist")
assert.Len(t, ids, len(packet.Extensions), "The number of IDs should be equal to the number of extensions")
for _, id := range ids {
ext := packet.GetExtension(id)
assert.NotNil(t, ext, "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,
}
assert.Nil(t, packet.GetExtensionIDs(), "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,
}
assert.Error(
t, packet.DelExtension(1), "DelExtension did not error on 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}
assert.NoError(t, packet.SetExtension(1, extension))
assert.True(t, packet.Extension)
assert.Equal(t, uint16(0xBEDE), packet.ExtensionProfile)
assert.Len(t, packet.Extensions, 1)
assert.Equal(t, extension, packet.GetExtension(1))
}
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)
assert.NoError(t, err, "Error setting extension")
assert.Equal(t, uint16(0xBEDE), packet.ExtensionProfile)
}
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,
}
assert.Equal(t, []byte{0xAA}, packet.GetExtension(1))
extension := []byte{0xBB}
err := packet.SetExtension(1, extension)
assert.NoError(t, err, "Error setting extension")
assert.Equal(t, extension, packet.GetExtension(1))
}
func TestRFC8285OneByteSetExtensionShouldErrorWhenInvalidIDProvided(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,
}
assert.Error(
t, packet.SetExtension(0, []byte{0xBB}),
"SetExtension did not error on invalid id",
)
assert.Error(
t, packet.SetExtension(15, []byte{0xBB}),
"SetExtension did not error on invalid id",
)
}
func TestRFC8285OneByteExtensionTermianteProcessingWhenReservedIDEncountered(t *testing.T) {
packet := &Packet{}
reservedIDPkt := []byte{
0x90, 0xe0, 0x69, 0x8f, 0xd9, 0xc2, 0x93, 0xda, 0x1c, 0x64,
0x27, 0x82, 0xBE, 0xDE, 0x00, 0x01, 0xF0, 0xAA, 0x98, 0x36, 0xbe, 0x88, 0x9e,
}
assert.NoError(
t, packet.Unmarshal(reservedIDPkt),
"Unmarshal error on packet with reserved extension id",
)
assert.Len(t, packet.Extensions, 0, "Extensions should be empty for invalid id")
payload := reservedIDPkt[17:]
assert.Equal(t, payload, packet.Payload)
}
func TestRFC8285OneByteSetExtensionShouldErrorWhenPayloadTooLarge(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,
}
assert.Error(
t,
packet.SetExtension(1, []byte{
0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB,
0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB,
}),
"SetExtension did not error on too large payload",
)
}
func TestRFC8285TwoByteSetExtensionShouldEnableExensionsWhenAdding(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, 0xAA,
}
assert.NoError(t, packet.SetExtension(1, extension))
assert.True(t, packet.Extension)
assert.Equal(t, uint16(0x1000), packet.ExtensionProfile)
assert.Len(t, packet.Extensions, 1)
assert.Equal(t, extension, packet.GetExtension(1))
}
func TestRFC8285TwoByteSetExtensionShouldUpdateExistingExension(t *testing.T) {
payload := []byte{
// Payload
0x98, 0x36, 0xbe, 0x88, 0x9e,
}
packet := &Packet{
Header: Header{
Marker: true,
Extension: true,
ExtensionProfile: 0x1000,
Extensions: []Extension{
{1, []byte{
0xAA,
}},
},
Version: 2,
PayloadType: 96,
SequenceNumber: 27023,
Timestamp: 3653407706,
SSRC: 476325762,
CSRC: []uint32{},
},
Payload: payload,
}
assert.Equal(t, []byte{0xAA}, packet.GetExtension(1), "Extension value not initialize properly")
extension := []byte{
0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB,
0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB,
}
err := packet.SetExtension(1, extension)
assert.NoError(t, err)
assert.Equal(t, packet.GetExtension(1), extension)
}