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prevent decoders from emitting corrupted frames #638

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merged 1 commit into from
Oct 23, 2024
Merged

prevent decoders from emitting corrupted frames #638

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8 changes: 8 additions & 0 deletions pkg/format/rtpac3/decoder.go
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Original file line number Diff line number Diff line change
Expand Up @@ -35,6 +35,7 @@ type Decoder struct {
fragments [][]byte
fragmentsSize int
fragmentsExpected int
fragmentNextSeqNum uint16
}

// Init initializes the decoder.
Expand Down Expand Up @@ -106,6 +107,7 @@ func (d *Decoder) Decode(pkt *rtp.Packet) ([][]byte, error) {
d.fragmentsSize = le
d.fragmentsExpected = size - le
d.fragments = append(d.fragments, pkt.Payload[2:])
d.fragmentNextSeqNum = pkt.SequenceNumber + 1
d.firstPacketReceived = true

return nil, ErrMorePacketsNeeded
Expand All @@ -118,6 +120,11 @@ func (d *Decoder) Decode(pkt *rtp.Packet) ([][]byte, error) {
return nil, fmt.Errorf("received a subsequent fragment without previous fragments")
}

if pkt.SequenceNumber != d.fragmentNextSeqNum {
d.resetFragments()
return nil, fmt.Errorf("discarding frame since a RTP packet is missing")
}

le := len(pkt.Payload[2:])
d.fragmentsSize += le
d.fragmentsExpected -= le
Expand All @@ -128,6 +135,7 @@ func (d *Decoder) Decode(pkt *rtp.Packet) ([][]byte, error) {
}

d.fragments = append(d.fragments, pkt.Payload[2:])
d.fragmentNextSeqNum++

if d.fragmentsExpected > 0 {
return nil, ErrMorePacketsNeeded
Expand Down
34 changes: 34 additions & 0 deletions pkg/format/rtpac3/decoder_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,40 @@ func TestDecode(t *testing.T) {
}
}

func TestDecodeErrorMissingPacket(t *testing.T) {
d := &Decoder{}
err := d.Init()
require.NoError(t, err)

_, err = d.Decode(&rtp.Packet{
Header: rtp.Header{
Version: 2,
Marker: false,
PayloadType: 96,
SequenceNumber: 17645,
SSRC: 0x9dbb7812,
},
Payload: []byte{
0x01, 0x02, 0x0b, 0x77, 0x1a, 0x01, 0x1e, 0x40,
},
})
require.Equal(t, ErrMorePacketsNeeded, err)

_, err = d.Decode(&rtp.Packet{
Header: rtp.Header{
Version: 2,
Marker: false,
PayloadType: 96,
SequenceNumber: 17647,
SSRC: 0x9dbb7812,
},
Payload: []byte{
0x03, 0x02, 0x72, 0xdc, 0x06, 0x7d, 0x2d, 0xe5,
},
})
require.EqualError(t, err, "discarding frame since a RTP packet is missing")
}

func FuzzDecoder(f *testing.F) {
f.Fuzz(func(t *testing.T, a []byte, am bool, b []byte, bm bool) {
d := &Decoder{}
Expand Down
15 changes: 12 additions & 3 deletions pkg/format/rtpav1/decoder.go
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Original file line number Diff line number Diff line change
Expand Up @@ -32,8 +32,9 @@
// Specification: https://aomediacodec.github.io/av1-rtp-spec/
type Decoder struct {
firstPacketReceived bool
fragmentsSize int
fragments [][]byte
fragmentsSize int
fragmentNextSeqNum uint16

// for Decode()
frameBuffer [][]byte
Expand Down Expand Up @@ -68,14 +69,21 @@
return nil, fmt.Errorf("received a subsequent fragment without previous fragments")
}

if pkt.SequenceNumber != d.fragmentNextSeqNum {
d.resetFragments()
return nil, fmt.Errorf("discarding frame since a RTP packet is missing")
}

d.fragmentsSize += len(av1header.OBUElements[0])

if d.fragmentsSize > av1.MaxTemporalUnitSize {
d.resetFragments()
return nil, fmt.Errorf("OBU size (%d) is too big, maximum is %d", d.fragmentsSize, av1.MaxTemporalUnitSize)
return nil, fmt.Errorf("temporal unit size (%d) is too big, maximum is %d", d.fragmentsSize, av1.MaxTemporalUnitSize)

Check warning on line 81 in pkg/format/rtpav1/decoder.go

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pkg/format/rtpav1/decoder.go#L81 

Added line #L81 was not covered by tests
}

d.fragments = append(d.fragments, av1header.OBUElements[0])
av1header.OBUElements = av1header.OBUElements[1:]
d.fragmentNextSeqNum++
}

d.firstPacketReceived = true
Expand All @@ -95,11 +103,12 @@

if d.fragmentsSize > av1.MaxTemporalUnitSize {
d.resetFragments()
return nil, fmt.Errorf("OBU size (%d) is too big, maximum is %d", d.fragmentsSize, av1.MaxTemporalUnitSize)
return nil, fmt.Errorf("temporal unit size (%d) is too big, maximum is %d", d.fragmentsSize, av1.MaxTemporalUnitSize)

Check warning on line 106 in pkg/format/rtpav1/decoder.go

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pkg/format/rtpav1/decoder.go#L106 

Added line #L106 was not covered by tests
}

d.fragments = append(d.fragments, av1header.OBUElements[elementCount-1])
av1header.OBUElements = av1header.OBUElements[:elementCount-1]
d.fragmentNextSeqNum = pkt.SequenceNumber + 1
}

obus = append(obus, av1header.OBUElements...)
Expand Down
239 changes: 239 additions & 0 deletions pkg/format/rtpav1/decoder_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -55,6 +55,245 @@ func TestDecoderErrorLimit(t *testing.T) {
require.EqualError(t, err, "OBU count exceeds maximum allowed (10)")
}

func TestDecodeErrorMissingPacket(t *testing.T) {
d := &Decoder{}
err := d.Init()
require.NoError(t, err)

_, err = d.Decode(&rtp.Packet{
Header: rtp.Header{
Version: 2,
Marker: false,
PayloadType: 96,
SequenceNumber: 17645,
SSRC: 0x9dbb7812,
},
Payload: []byte{
0x40, 0xb1, 0x0b, 0x30, 0x30, 0xca, 0x08, 0x12,
0xfd, 0xfd, 0x78, 0x89, 0xe5, 0x3e, 0xa3, 0x80,
0x08, 0x20, 0x82, 0x08, 0x54, 0x50, 0x00, 0x30,
0x00, 0x00, 0x66, 0x00, 0xeb, 0xcd, 0xc5, 0x72,
0x25, 0x5a, 0x0a, 0xc3, 0x4a, 0x43, 0x15, 0x59,
0x13, 0x5f, 0xb9, 0x39, 0x19, 0xf1, 0xca, 0x26,
0xc7, 0x59, 0xa7, 0x66, 0xe4, 0xa5, 0xff, 0x3a,
0xba, 0x3f, 0x62, 0xfc, 0x58, 0x07, 0xd0, 0x18,
0xd6, 0xb2, 0x90, 0x72, 0xf4, 0x57, 0xbd, 0x5d,
0x72, 0x92, 0x8c, 0x71, 0x48, 0x17, 0x89, 0x65,
0xa9, 0x9e, 0xa2, 0x81, 0x9a, 0x83, 0x66, 0x11,
0xd7, 0xe7, 0x41, 0x35, 0xb7, 0x8a, 0xb3, 0xd0,
0x90, 0x54, 0x2a, 0x48, 0xea, 0x65, 0xd1, 0xb0,
0x83, 0xda, 0xbb, 0x61, 0xff, 0xc4, 0xd0, 0x06,
0x78, 0x35, 0xc2, 0xf7, 0x15, 0x16, 0xe5, 0xc3,
0xf0, 0x9f, 0x7f, 0x1a, 0xd6, 0xad, 0xd4, 0x41,
0xa4, 0xf4, 0x40, 0x41, 0x00, 0x78, 0x5c, 0x14,
0x08, 0x57, 0x3d, 0x96, 0xc2, 0x0b, 0xb5, 0x03,
0xce, 0x7d, 0xe6, 0x50, 0xd1, 0xbc, 0x3e, 0x1e,
0x84, 0x62, 0x1a, 0xd1, 0xfe, 0x52, 0x9e, 0x79,
0x26, 0x51, 0xc8, 0x14, 0x54, 0xf2, 0x77, 0xe6,
0x25, 0x0f, 0x5f, 0xec, 0x66, 0x33, 0xdb, 0xd0,
0x9f, 0x5a, 0xf9, 0xbc, 0xc4, 0x9b, 0x31, 0x8c,
0x6f, 0xe6, 0x2a, 0x50, 0x65, 0x1d, 0x45, 0xaf,
0x19, 0xd4, 0xde, 0xf8, 0x33, 0x43, 0x48, 0x57,
0x00, 0x80, 0x5b, 0xaa, 0x3e, 0x1b, 0xf7, 0x21,
0xc1, 0x56, 0x5e, 0xfb, 0xdb, 0x43, 0xa8, 0x7b,
0xde, 0x82, 0xc1, 0x45, 0x5a, 0x36, 0x04, 0x20,
0xa8, 0xa3, 0x0b, 0xa9, 0xa8, 0x6d, 0xe1, 0xfd,
0x13, 0x0d, 0x38, 0xef, 0x00, 0xd5, 0x00, 0xe5,
0x2d, 0x69, 0x67, 0x17, 0x59, 0xd9, 0xda, 0x61,
0x95, 0xac, 0x55, 0x3a, 0xc5, 0x77, 0x1e, 0xbe,
0xa5, 0x58, 0x7a, 0xbb, 0x09, 0xbd, 0x46, 0xab,
0x82, 0x60, 0x13, 0x8f, 0x8b, 0xfb, 0x29, 0xe0,
0x7f, 0xa5, 0xca, 0x25, 0xfa, 0x77, 0x07, 0x88,
0x51, 0xdb, 0xc2, 0x99, 0x5f, 0xad, 0xe1, 0x45,
0x28, 0x0e, 0x00, 0x86, 0x79, 0x60, 0xe2, 0x36,
0x9a, 0x41, 0x21, 0x01, 0xdf, 0x3d, 0x0c, 0x31,
0x37, 0xa4, 0x0b, 0x00, 0xe6, 0x43, 0xfb, 0x28,
0x05, 0x2c, 0xff, 0x40, 0x1c, 0x23, 0x6d, 0x4f,
0x58, 0x00, 0xe1, 0xc4, 0xb2, 0x05, 0x3a, 0x03,
0xa4, 0xde, 0xf4, 0x13, 0x5e, 0x8c, 0x45, 0xc2,
0x3b, 0xf0, 0x2c, 0x00, 0x28, 0x0b, 0xe2, 0x7d,
0xa4, 0x27, 0x78, 0xf0, 0xfa, 0x3f, 0x0a, 0xa9,
0xac, 0x20, 0xa0, 0xe2, 0x33, 0xe8, 0xc6, 0xa7,
0x69, 0x6f, 0x4c, 0xec, 0x67, 0x06, 0x79, 0x27,
0x1d, 0x69, 0xe3, 0xa6, 0xad, 0x6e, 0x63, 0x97,
0xd2, 0xe3, 0xaa, 0xd4, 0xc5, 0x6d, 0xaa, 0x29,
0xfa, 0xc3, 0x4b, 0x23, 0xec, 0xe7, 0x5f, 0xdd,
0xf8, 0x45, 0x55, 0x62, 0xec, 0x3c, 0xe8, 0x73,
0xf0, 0x63, 0x04, 0x6f, 0x88, 0xa7, 0x4d, 0x7c,
0x28, 0xef, 0x20, 0x0d, 0x00, 0xf9, 0xba, 0xe5,
0x09, 0x5d, 0xc2, 0x8d, 0x7d, 0x18, 0x2c, 0x2f,
0xff, 0x93, 0x88, 0x2d, 0x00, 0xf9, 0xaf, 0x22,
0x68, 0x70, 0x72, 0xe4, 0x36, 0x22, 0x15, 0x5f,
0x7a, 0xef, 0xd9, 0x03, 0x25, 0xf5, 0x17, 0x68,
0x30, 0xee, 0x2b, 0xed, 0xe8, 0x0c, 0x1a, 0x32,
0x72, 0x62, 0xd4, 0x74, 0x69, 0xf1, 0x9a, 0xcf,
0x9b, 0x52, 0xfc, 0x56, 0xe3, 0xda, 0x73, 0x09,
0x33, 0x95, 0x08, 0x77, 0x00, 0x09, 0x17, 0x4d,
0xb7, 0xc4, 0x32, 0xcd, 0xf9, 0x33, 0x7f, 0x78,
0x44, 0x33, 0xf3, 0x94, 0x5d, 0x74, 0x14, 0x53,
0x3e, 0xc1, 0xa6, 0x62, 0x3a, 0x94, 0x41, 0xc9,
0x4d, 0x05, 0x87, 0x7d, 0x92, 0xd9, 0x12, 0xb4,
0x9a, 0x1f, 0x43, 0xf4, 0x54, 0x0c, 0xb4, 0x6c,
0xd0, 0x16, 0xd7, 0x46, 0xe2, 0x5e, 0xdc, 0x56,
0xff, 0x42, 0x72, 0xe4, 0x97, 0x8f, 0xdb, 0x2f,
0x27, 0xbd, 0x4c, 0xa3, 0x4e, 0x43, 0x4a, 0x0b,
0x46, 0x45, 0x36, 0x80, 0x0d, 0xd4, 0x87, 0xc7,
0x1a, 0xf8, 0x5f, 0x9c, 0xf4, 0x10, 0x82, 0xa8,
0x28, 0xa7, 0xd1, 0xbf, 0xc1, 0x61, 0x5a, 0x73,
0xbd, 0xe9, 0x44, 0x66, 0x5a, 0x2b, 0x14, 0x4c,
0xa5, 0x5d, 0x3d, 0x38, 0xfb, 0xd4, 0xa8, 0x24,
0xbe, 0xe4, 0x99, 0xa1, 0x98, 0x90, 0x72, 0x67,
0x1f, 0x3b, 0x96, 0xae, 0x60, 0x7a, 0x00, 0xf2,
0x11, 0x13, 0x9f, 0xc4, 0xb5, 0x63, 0xd7, 0x63,
0xb6, 0x64, 0xe3, 0xbb, 0xf1, 0x96, 0x9e, 0x77,
0xab, 0xc4, 0xa8, 0x39, 0xd5, 0x22, 0xe9, 0xee,
0xad, 0x1f, 0x91, 0xff, 0x56, 0x3e, 0x68, 0x89,
0x63, 0x11, 0xc8, 0x98, 0xa1, 0x7e, 0xd9, 0x37,
0xb2, 0x94, 0x23, 0xfb, 0x67, 0xb7, 0xa0, 0xaa,
0x0f, 0xe7, 0xb6, 0xe1, 0xb8, 0xc3, 0x73, 0xe3,
0xae, 0x07, 0xe6, 0xf7, 0xc8, 0x35, 0x03, 0xc5,
0x7a, 0xfc, 0x48, 0xd4, 0xe2, 0x61, 0x7a, 0x22,
0xdd, 0x78, 0x4b, 0xef, 0xa4, 0xde, 0x27, 0x62,
0xdd, 0xa1, 0x76, 0xe5, 0xeb, 0x83, 0xa3, 0x18,
0xde, 0xe9, 0x99, 0x37, 0x66, 0x34, 0x20, 0xaf,
0x67, 0x2b, 0xdd, 0xa4, 0x69, 0xeb, 0x7d, 0x71,
0x0f, 0x24, 0xef, 0x88, 0x49, 0x8c, 0xe5, 0x33,
0xfa, 0xf3, 0x3e, 0xff, 0x46, 0x10, 0x5d, 0x25,
0x97, 0x7f, 0x8e, 0x00, 0xe2, 0x08, 0x0e, 0x39,
0x65, 0x4c, 0xa5, 0x1b, 0x5f, 0x5a, 0xa8, 0xab,
0xb1, 0x4a, 0x55, 0xf0, 0x41, 0x9e, 0xf5, 0xcd,
0x2c, 0x34, 0x56, 0x11, 0xda, 0x96, 0x68, 0xe4,
0x39, 0x8d, 0xfe, 0x40, 0xb0, 0x0b, 0x05, 0x5d,
0xf4, 0xba, 0x27, 0x1a, 0x3b, 0xed, 0xee, 0x88,
0x07, 0x59, 0x40, 0xf6, 0x6f, 0x44, 0x1a, 0x5f,
0x3d, 0x42, 0xb2, 0xa7, 0x5d, 0x07, 0xd5, 0x7e,
0x95, 0x36, 0xc9, 0xa3, 0xd3, 0x45, 0x56, 0x70,
0x92, 0x79, 0xc9, 0xd7, 0xfd, 0x88, 0xa4, 0x89,
0x9a, 0x94, 0xbd, 0x9d, 0x49, 0xec, 0x32, 0xc4,
0xee, 0x87, 0xd7, 0x0a, 0xf8, 0xab, 0x23, 0x70,
0x3b, 0xbd, 0xd6, 0x34, 0x86, 0x3a, 0x05, 0x68,
0x95, 0x31, 0x81, 0x2d, 0x6d, 0xde, 0x54, 0xfe,
0x0b, 0xa9, 0x72, 0x3c, 0x78, 0xb7, 0xf5, 0x84,
0x67, 0x39, 0x4f, 0x2d, 0xbb, 0xcb, 0x22, 0x2d,
0xed, 0xf2, 0xc1, 0x56, 0xf8, 0x11, 0xf9, 0xee,
0x81, 0xd8, 0x64, 0x07, 0xbf, 0xb4, 0x69, 0xdb,
0xda, 0x0c, 0xf5, 0x20, 0x00, 0xf8, 0x26, 0x7b,
0x31, 0x54, 0x09, 0x24, 0xbf, 0x7c, 0xf5, 0xad,
0x76, 0xbb, 0xcc, 0x89, 0xee, 0x5b, 0x2a, 0x23,
0x12, 0x1c, 0x69, 0x50, 0xdd, 0x03, 0x0d, 0xe4,
0xca, 0xb8, 0x59, 0x7c, 0x91, 0xa0, 0x82, 0x00,
0x01, 0x9e, 0x1e, 0x4d, 0x87, 0xf7, 0xab, 0x3d,
0x06, 0x6c, 0x95, 0x90, 0x63, 0x57, 0x0f, 0x44,
0x4c, 0x49, 0x21, 0x2e, 0x85, 0x47, 0x61, 0x02,
0x67, 0x57, 0xdc, 0xde, 0x67, 0x92, 0x11, 0x34,
0x85, 0x05, 0x9e, 0x25, 0xe4, 0x1b, 0x8e, 0xaa,
0xca, 0xd9, 0x4c, 0x2c, 0x84, 0x30, 0xf1, 0xdc,
0x4a, 0x9b, 0x02, 0xdd, 0x69, 0x5e, 0xcd, 0x31,
0x08, 0x27, 0xd1, 0x83, 0xcd, 0x03, 0x4d, 0xd9,
0xf0, 0x0a, 0x69, 0x8e, 0x8b, 0x88, 0x14, 0x98,
0x37, 0x8c, 0xad, 0x93, 0x70, 0x04, 0xf8, 0x88,
0xa7, 0x67, 0xf0, 0xfe, 0xa9, 0x49, 0x46, 0xbe,
0xab, 0x14, 0x8c, 0x56, 0xea, 0x17, 0x52, 0x1f,
0x35, 0xfa, 0xd2, 0xd4, 0xa4, 0xf6, 0xb6, 0x72,
0x25, 0x03, 0xbf, 0xc1, 0x85, 0xe1, 0x3e, 0x3a,
0x19, 0xcb, 0xe3, 0x7e, 0x15, 0x65, 0xd1, 0x33,
0x40, 0x2a, 0xd8, 0x3f, 0x2c, 0x86, 0x12, 0x65,
0xe2, 0x60, 0x80, 0x1b, 0x01, 0x0b, 0xd2, 0xcd,
0x3b, 0x24, 0x56, 0x73, 0xcd, 0xa9, 0x34, 0xd1,
0x36, 0xd3, 0x26, 0x6f, 0x49, 0x58, 0xcf, 0xb7,
0x39, 0x92, 0xa8, 0x15, 0x47, 0x0f, 0x92, 0x68,
0x49, 0xa2, 0x91, 0xe0, 0x55, 0xc8, 0xd9, 0xf1,
0x84, 0xc4, 0x41, 0x67, 0xd9, 0x24, 0xf3, 0x0f,
0xdc, 0x3d, 0x6d, 0x79, 0x4d, 0x0f, 0x35, 0x8b,
0xdf, 0x6d, 0xcd, 0x66, 0x7e, 0x82, 0x09, 0xa3,
0x72, 0x1d, 0x3d, 0x4b, 0x0f, 0xad, 0x7c, 0xbe,
0xdd, 0x96, 0x17, 0x62, 0x26, 0x72, 0xe6, 0x1d,
0xb9, 0xf6, 0x9a, 0x71, 0x52, 0x5a, 0x76, 0xbb,
0x4e, 0x11, 0x78, 0xbe, 0x05, 0xe5, 0xf6, 0xaf,
0xf2, 0x66, 0xd3, 0xe5, 0xdb, 0xfc, 0xd8, 0x96,
0x64, 0x8b, 0x7a, 0xec, 0x9f, 0x3e, 0x0d, 0x7c,
0xd5, 0x20, 0xdf, 0x50, 0x52, 0x57, 0x93, 0xa0,
0x03, 0x5a, 0xed, 0x5c, 0xb4, 0xfa, 0x15, 0xf0,
0xda, 0xc4, 0x94, 0xbf, 0xcb, 0x25, 0xc7, 0xda,
0x59, 0x5d, 0xb8, 0x00, 0x00, 0x00, 0x56, 0x76,
0xe4, 0x62, 0x1c, 0x71, 0x70, 0xf6, 0x7f, 0x20,
0x83, 0xee, 0x17, 0x23, 0x56, 0x8c, 0x20, 0x9c,
0x65, 0x25, 0xe9, 0x38, 0xe2, 0xd2, 0x66, 0xae,
0xa1, 0x47, 0x16, 0xba, 0x5e, 0x87, 0xd4, 0x8b,
0x7e, 0x80, 0x9f, 0x83, 0x4b, 0x27, 0x46, 0x97,
0x72, 0x2b, 0x88, 0xd1, 0xf0, 0x92, 0xd4, 0x2a,
0x7e, 0x48, 0x63, 0x95, 0x33, 0x13, 0x07, 0xf8,
0x79, 0x3a, 0x6b, 0x67, 0x1c, 0x6f, 0x38, 0x80,
0x3c, 0xc6, 0xfa, 0xb8, 0x4e, 0xd2, 0x01, 0xaf,
0x79, 0x37, 0x60, 0xd6, 0x4d, 0x55, 0xcd, 0x1d,
0xf5, 0x15, 0x0f, 0xb7, 0x8c, 0xa5, 0xec, 0x25,
0xe4, 0x45, 0xec, 0xe6, 0xf9, 0xc2, 0x35, 0xea,
0xc6, 0x30, 0xa2, 0x1f, 0x21, 0x13, 0x1f, 0x97,
0x95, 0xee, 0x69, 0x63, 0xcf, 0x4b, 0xb2, 0xc3,
0xc0, 0x23, 0xc9, 0x75, 0x2b, 0xd6, 0xac, 0x3c,
0xcb, 0x38, 0x73, 0xa0, 0x5a, 0xa5, 0x7d, 0x3d,
0x23, 0xb1, 0x4c, 0xc9, 0x1b, 0x12, 0xc4, 0x83,
0xe1, 0x62, 0x61, 0xf3, 0x8c, 0x6a, 0x45, 0x95,
0xee, 0x74, 0x00, 0x2f, 0x84, 0x77, 0xff, 0x16,
0x22, 0x02, 0xfe, 0x4b, 0xd2, 0x57, 0x65, 0xee,
0x49, 0xcd, 0x7b, 0xb5, 0xdb, 0x8e, 0x5a, 0xcb,
0x70, 0x7f, 0x78, 0xbc, 0x35, 0x34, 0x3e, 0xcd,
0xf6, 0x24, 0x78, 0x8f, 0xe8, 0x9e, 0x5c, 0x9c,
0x22, 0x4a, 0xf0, 0xbc, 0x89, 0x64, 0x93, 0xcf,
0x20, 0xc8, 0xfd, 0x27, 0xe2, 0x36, 0x86, 0x00,
0x61, 0xe8, 0xe2, 0x9c, 0xad, 0x55, 0x98, 0x77,
0x2f, 0xfa, 0x28, 0xb4, 0xa7, 0xda, 0xa4, 0x14,
0x06, 0x8c, 0x7a, 0xd5, 0xdf, 0x0d, 0x32, 0x56,
0xcc, 0xd3, 0x70, 0x71, 0x70, 0xd5, 0xb6, 0x41,
0x0f, 0x45, 0xb2, 0xf0, 0x24, 0xa5, 0x23, 0x13,
0x70, 0x36, 0x07, 0xcd, 0xc6, 0x75, 0xd8, 0x62,
0x8c, 0x7f, 0xa7, 0xb9, 0x76, 0x16, 0xb3, 0x9a,
0x7e, 0x20, 0x27, 0x27, 0x2d, 0x33, 0x60, 0x70,
0xa5, 0xef, 0x5c, 0x9c, 0x6e, 0x5f, 0x2f, 0x20,
0x78, 0x58, 0x59, 0x92, 0x15, 0xfe, 0x13, 0x07,
0x87, 0xc7, 0x3e, 0x21,
},
})
require.Equal(t, ErrMorePacketsNeeded, err)

_, err = d.Decode(&rtp.Packet{
Header: rtp.Header{
Version: 2,
Marker: false,
PayloadType: 96,
SequenceNumber: 17647,
SSRC: 0x9dbb7812,
},
Payload: []byte{
0x80, 0xbb, 0x01, 0x04, 0x24, 0x33, 0x60, 0x15,
0x91, 0xfb, 0xfe, 0xe8, 0xf8, 0xb9, 0xa6, 0x9a,
0xbf, 0x65, 0xf3, 0x37, 0x40, 0xb8, 0x52, 0x69,
0x3f, 0x65, 0x27, 0x36, 0x01, 0x92, 0xe8, 0xef,
0x51, 0x3e, 0xcd, 0xf5, 0xcc, 0x4f, 0x8b, 0x4f,
0x7b, 0x38, 0x3e, 0x43, 0x4d, 0xc0, 0xa4, 0xc6,
0x84, 0x79, 0x8e, 0xf4, 0x4a, 0xe1, 0xa9, 0x2b,
0xd5, 0x34, 0x00, 0x30, 0x94, 0x6a, 0x91, 0xa2,
0xd5, 0xc0, 0xbf, 0xb5, 0x66, 0x59, 0x38, 0xc2,
0xa4, 0x75, 0x96, 0x5b, 0x7a, 0xac, 0x9c, 0x05,
0x67, 0x99, 0x2e, 0xba, 0x21, 0x1e, 0xac, 0x50,
0x01, 0x68, 0x71, 0xac, 0x68, 0x6d, 0xc1, 0xf2,
0x2c, 0x51, 0x1e, 0xb6, 0x64, 0x97, 0x3d, 0x9b,
0x2b, 0x89, 0x66, 0xbd, 0x50, 0x4f, 0x5c, 0xec,
0x7c, 0xc8, 0x51, 0x61, 0x74, 0xbd, 0x86, 0xb4,
0x6e, 0x71, 0x59, 0x24, 0x59, 0xaf, 0x66, 0x54,
0x82, 0xdb, 0xe2, 0x11, 0x6f, 0x87, 0x92, 0xf3,
0x63, 0xd4, 0x4b, 0xd6, 0x26, 0x42, 0xf1, 0x2a,
0x66, 0x63, 0x79, 0x5e, 0x7e, 0xfb, 0x3f, 0x85,
0xa7, 0x24, 0xac, 0x53, 0xe2, 0x57, 0x56, 0xdd,
0xef, 0x7a, 0xdf, 0xb6, 0x27, 0xaf, 0x25, 0x6a,
0x89, 0x4a, 0x4c, 0xc3, 0xe6, 0x2e, 0xbe, 0x2b,
0x38, 0x07, 0xe0, 0x96, 0x98, 0xaf, 0x85, 0xf4,
0x86, 0x7d, 0xf4, 0xee, 0xe5, 0x78,
},
})
require.EqualError(t, err, "discarding frame since a RTP packet is missing")
}

func FuzzDecoder(f *testing.F) {
f.Fuzz(func(_ *testing.T, a []byte, am bool, b []byte, bm bool) {
d := &Decoder{}
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