package stream_test import ( "testing" "github.com/bluenviron/gortsplib/v5/pkg/description" "github.com/bluenviron/gortsplib/v5/pkg/format" "github.com/pion/rtp" "github.com/stretchr/testify/require" "github.com/bluenviron/mediamtx/internal/stream" "github.com/bluenviron/mediamtx/internal/test" "github.com/bluenviron/mediamtx/internal/unit" ) var casesDecodeEncode = []struct { name string format format.Format encoded []*rtp.Packet decoded unit.Payload }{ { name: "av1", format: &format.AV1{ PayloadTyp: 96, }, encoded: []*rtp.Packet{ { Header: rtp.Header{ Version: 2, Marker: true, PayloadType: 96, SequenceNumber: 123, Timestamp: 45343, SSRC: 563423, }, Payload: []byte{ 0x10, 0x02, // Size = 2 0x01, 0x02, // OBU data }, }, }, decoded: unit.PayloadAV1{ {0x02, 0x01, 0x02}, // Size byte included with OBU data }, }, { name: "vp9", format: &format.VP9{ PayloadTyp: 96, }, encoded: []*rtp.Packet{ { Header: rtp.Header{ Version: 2, Marker: true, PayloadType: 96, SequenceNumber: 123, Timestamp: 45343, SSRC: 563423, }, Payload: []byte{ 0x8f, 0xb5, 0xaf, 0x18, 0x07, 0x80, 0x03, 0x24, 0x01, 0x14, 0x01, 0x82, 0x49, 0x83, 0x42, 0x00, 0x77, 0xf0, 0x32, 0x34, }, }, }, decoded: unit.PayloadVP9{0x82, 0x49, 0x83, 0x42, 0x0, 0x77, 0xf0, 0x32, 0x34}, }, { name: "vp8", format: &format.VP8{ PayloadTyp: 96, }, encoded: []*rtp.Packet{ { Header: rtp.Header{ Version: 2, Marker: true, PayloadType: 96, SequenceNumber: 123, Timestamp: 45343, SSRC: 563423, }, Payload: []byte{ 0x10, // X=0, R=0, N=0, S=1, PartID=0 0x01, 0x02, 0x03, 0x04, }, }, }, decoded: unit.PayloadVP8{0x01, 0x02, 0x03, 0x04}, }, { name: "h265", format: &format.H265{ PayloadTyp: 96, VPS: []byte{0x40, 0x01, 0x0c, 0x01, 0xff, 0xfe}, SPS: []byte{0x42, 0x01, 0x01, 0x01, 0x60, 0x00, 0x00, 0x04}, PPS: []byte{0x44, 0x01, 0xc1, 0x73, 0xd1, 0x8a}, }, encoded: []*rtp.Packet{ { Header: rtp.Header{ Version: 2, Marker: true, PayloadType: 96, SequenceNumber: 123, Timestamp: 45343, SSRC: 563423, }, Payload: []byte{ 0x60, 0x01, 0x00, 0x06, 0x40, 0x01, 0x0c, 0x01, 0xff, 0xfe, 0x00, 0x08, 0x42, 0x01, 0x01, 0x01, 0x60, 0x00, 0x00, 0x04, 0x00, 0x06, 0x44, 0x01, 0xc1, 0x73, 0xd1, 0x8a, 0x00, 0x05, 0x26, 0x01, 0x01, 0x02, 0x03, }, }, }, decoded: unit.PayloadH265{ {0x40, 0x01, 0x0c, 0x01, 0xff, 0xfe}, // VPS {0x42, 0x01, 0x01, 0x01, 0x60, 0x00, 0x00, 0x04}, // SPS {0x44, 0x01, 0xc1, 0x73, 0xd1, 0x8a}, // PPS {0x26, 0x01, 0x01, 0x02, 0x03}, // IDR }, }, { name: "h264", format: &format.H264{ PayloadTyp: 96, PacketizationMode: 1, SPS: []byte{ 0x67, 0x42, 0xc0, 0x28, 0xd9, 0x00, 0x78, 0x02, 0x27, 0xe5, 0x84, 0x00, 0x00, 0x03, 0x00, 0x04, 0x00, 0x00, 0x03, 0x00, 0xf0, 0x3c, 0x60, 0xc9, 0x20, }, PPS: []byte{0x08, 0x06, 0x07, 0x08}, }, encoded: []*rtp.Packet{ { Header: rtp.Header{ Version: 2, Marker: true, PayloadType: 96, SequenceNumber: 123, Timestamp: 45343, SSRC: 563423, }, Payload: []byte{ 0x18, 0x00, 0x19, 0x67, 0x42, 0xc0, 0x28, 0xd9, 0x00, 0x78, 0x02, 0x27, 0xe5, 0x84, 0x00, 0x00, 0x03, 0x00, 0x04, 0x00, 0x00, 0x03, 0x00, 0xf0, 0x3c, 0x60, 0xc9, 0x20, 0x00, 0x04, 0x08, 0x06, 0x07, 0x08, 0x00, 0x05, 0x05, 0x01, 0x02, 0x03, 0x04, }, }, }, decoded: unit.PayloadH264{ { 0x67, 0x42, 0xc0, 0x28, 0xd9, 0x00, 0x78, 0x02, 0x27, 0xe5, 0x84, 0x00, 0x00, 0x03, 0x00, 0x04, 0x00, 0x00, 0x03, 0x00, 0xf0, 0x3c, 0x60, 0xc9, 0x20, }, // SPS {0x08, 0x06, 0x07, 0x08}, // PPS {0x05, 0x01, 0x02, 0x03, 0x04}, // IDR }, }, { name: "mpeg4video", format: &format.MPEG4Video{ PayloadTyp: 96, Config: []byte{0x00, 0x00, 0x01, 0xb0, 0x01}, }, encoded: []*rtp.Packet{ { Header: rtp.Header{ Version: 2, Marker: true, PayloadType: 96, SequenceNumber: 123, Timestamp: 45343, SSRC: 563423, }, Payload: []byte{0x00, 0x01, 0x02, 0x03, 0x04}, }, }, decoded: unit.PayloadMPEG4Video{0x00, 0x01, 0x02, 0x03, 0x04}, }, { name: "mpeg1video", format: &format.MPEG1Video{}, encoded: []*rtp.Packet{ { Header: rtp.Header{ Version: 2, Marker: true, // Marker indicates complete frame PayloadType: 32, SequenceNumber: 123, Timestamp: 45343, SSRC: 563423, }, Payload: []byte{ // MPEG-1 Video RTP header (4 bytes) 0x00, // MBZ=0, T=0 (MPEG-1) 0x00, // TR (temporal reference) - low 8 bits 0x18, // AN=0, N=0, S=0 (no sequence header), B=1, E=1 (complete slice), FBV=0, BFC=0, FFV=0, FFC=0 0x00, // FFC (continued) // MPEG-1 Video data (slice or frame data) 0x00, 0x00, 0x01, 0x01, // Slice start code 0x01, 0x02, 0x03, 0x04, // Slice data }, }, }, decoded: unit.PayloadMPEG1Video{ // Only the video data after the 4-byte RTP header 0x00, 0x00, 0x01, 0x01, 0x01, 0x02, 0x03, 0x04, }, }, { name: "mjpeg", format: &format.MJPEG{}, encoded: []*rtp.Packet{ { Header: rtp.Header{ Version: 2, PayloadType: 26, }, Payload: []byte{ 0x00, 0x00, 0x00, 0x00, 0x01, 0xff, 0xf0, 0x87, 0x00, 0x00, 0x00, 0x80, 0x0d, 0x09, 0x0a, 0x0b, 0x0a, 0x08, 0x0d, 0x0b, 0x0a, 0x0b, 0x0e, 0x0e, 0x0d, 0x0f, 0x13, 0x20, 0x15, 0x13, 0x12, 0x12, 0x13, 0x27, 0x1c, 0x1e, 0x17, 0x20, 0x2e, 0x29, 0x31, 0x30, 0x2e, 0x29, 0x2d, 0x2c, 0x33, 0x3a, 0x4a, 0x3e, 0x33, 0x36, 0x46, 0x37, 0x2c, 0x2d, 0x40, 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0x8e, 0xee, 0x2d, 0x27, 0xec, 0x70, 0x7f, 0xdf, 0xca, 0x66, 0xa3, 0xe1, 0x7f, 0xb0, 0x79, 0xbe, 0x46, 0xa5, 0x17, 0xfd, 0x73, 0x92, 0xb0, 0xe1, 0xa8, 0x0f, 0x66, 0x76, 0x90, 0xf8, 0xa2, 0x29, 0x6c, 0x3c, 0x9f, 0xde, 0xf9, 0xde, 0x5f, 0xef, 0x24, 0xaa, 0x76, 0x9e, 0x2d, 0xbb, 0x8b, 0x49, 0xf2, 0x7f, 0xe5, 0xb5, 0x62, 0x5a, 0x5f, 0xcb, 0x6b, 0xfe, 0xa3, 0xfe, 0x5a, 0xd1, 0xe5, 0x45, 0xff, }, }, { Header: rtp.Header{ Version: 2, PayloadType: 26, Marker: true, }, Payload: []byte{ 0x00, 0x00, 0x05, 0x1e, 0x01, 0xff, 0xf0, 0x87, 0x00, 0x2c, 0x29, 0x0f, 0xd9, 0x97, 0xff, 0x00, 0xb6, 0x65, 0xba, 0x82, 0x5f, 0xb7, 0x4d, 0xe6, 0xcd, 0xff, 0x00, 0x2c, 0xe2, 0xae, 0xa7, 0x49, 0xd5, 0x3f, 0xe2, 0x9a, 0xf3, 0xa7, 0xff, 0x00, 0x5d, 0x15, 0x70, 0xb4, 0x43, 0xfb, 0xdf, 0xf5, 0xf3, 0x4b, 0xff, 0x00, 0x5c, 0xe8, 0xf6, 0x83, 0xf6, 0x67, 0xa1, 0x68, 0x7a, 0xcc, 0x5a, 0xcf, 0xfd, 0x32, 0x9b, 0xfe, 0x79, 0xd5, 0xeb, 0xbb, 0xab, 0x4b, 0x08, 0x3f, 0xd3, 0xab, 0xcd, 0x66, 0xba, 0xfb, 0x57, 0xfd, 0x32, 0x9a, 0x2a, 0x96, 0xd2, 0xff, 0x00, 0xcd, 0xbf, 0xf3, 0xb5, 0x49, 0xbc, 0xdf, 0x2b, 0xfe, 0x59, 0xd3, 0x27, 0xd9, 0x9a, 0x30, 0xdd, 0x7d, 0xab, 0x5e, 0xfb, 0x1d, 0x8c, 0xde, 0x55, 0x9c, 0xb2, 0x79, 0x95, 0xd3, 0x6a, 0x3a, 0xa7, 0xd9, 0x75, 0xdb, 0x5b, 0x39, 0xff, 0x00, 0xd4, 0xcb, 0xff, 0x00, 0x2d, 0x2b, 0xcf, 0xbe, 0xdf, 0xe5, 0x6a, 0xdf, 0x6c, 0x83, 0xfe, 0x59, 0x54, 0xda, 0xb6, 0xb3, 0x2e, 0xb3, 0x7f, 0xe7, 0x7f, 0xaa, 0xff, 0xff, 0xd9, }, }, }, decoded: unit.PayloadMJPEG{ 0xff, 0xd8, 0xff, 0xdb, 0x00, 0x84, 0x00, 0x0d, 0x09, 0x0a, 0x0b, 0x0a, 0x08, 0x0d, 0x0b, 0x0a, 0x0b, 0x0e, 0x0e, 0x0d, 0x0f, 0x13, 0x20, 0x15, 0x13, 0x12, 0x12, 0x13, 0x27, 0x1c, 0x1e, 0x17, 0x20, 0x2e, 0x29, 0x31, 0x30, 0x2e, 0x29, 0x2d, 0x2c, 0x33, 0x3a, 0x4a, 0x3e, 0x33, 0x36, 0x46, 0x37, 0x2c, 0x2d, 0x40, 0x57, 0x41, 0x46, 0x4c, 0x4e, 0x52, 0x53, 0x52, 0x32, 0x3e, 0x5a, 0x61, 0x5a, 0x50, 0x60, 0x4a, 0x51, 0x52, 0x4f, 0x01, 0x0e, 0x0e, 0x0e, 0x13, 0x11, 0x13, 0x26, 0x15, 0x15, 0x26, 0x4f, 0x35, 0x2d, 0x35, 0x4f, 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IndexDeltaLength: 3, }, encoded: []*rtp.Packet{ { Header: rtp.Header{ Version: 2, Marker: true, PayloadType: 96, SequenceNumber: 123, Timestamp: 45343, SSRC: 563423, }, Payload: []byte{ // AU-headers-length: 16 bits (2 bytes) = 16 bits of headers 0x00, 0x10, // AU-header: 13 bits size + 3 bits index // size=4 (13 bits): 0000000000100 // index=0 (3 bits): 000 // Combined: 0000000000100000 = 0x0020 0x00, 0x20, // AU data 0x01, 0x02, 0x03, 0x04, }, }, }, decoded: unit.PayloadMPEG4Audio{ {0x01, 0x02, 0x03, 0x04}, }, }, { name: "opus", format: &format.Opus{ PayloadTyp: 96, ChannelCount: 2, }, encoded: []*rtp.Packet{ { Header: rtp.Header{ Version: 2, Marker: false, PayloadType: 96, SequenceNumber: 123, Timestamp: 45343, SSRC: 563423, }, Payload: []byte{0x01, 0x02, 0x03, 0x04}, }, }, decoded: unit.PayloadOpus{ {0x01, 0x02, 0x03, 0x04}, }, }, { name: "g711", format: &format.G711{ MULaw: true, SampleRate: 8000, ChannelCount: 1, }, encoded: []*rtp.Packet{ { Header: rtp.Header{ Version: 2, Marker: false, PayloadType: 0, SequenceNumber: 123, Timestamp: 45343, SSRC: 563423, }, Payload: []byte{0x01, 0x02, 0x03, 0x04}, }, }, decoded: unit.PayloadG711{0x01, 0x02, 0x03, 0x04}, }, { name: "lpcm", format: &format.LPCM{ PayloadTyp: 96, BitDepth: 16, SampleRate: 48000, ChannelCount: 2, }, encoded: []*rtp.Packet{ { Header: rtp.Header{ Version: 2, Marker: false, PayloadType: 96, SequenceNumber: 123, Timestamp: 45343, SSRC: 563423, }, Payload: []byte{0x01, 0x02, 0x03, 0x04}, }, }, decoded: unit.PayloadLPCM{0x01, 0x02, 0x03, 0x04}, }, { name: "klv", format: &format.KLV{ PayloadTyp: 96, }, encoded: []*rtp.Packet{ { Header: rtp.Header{ Version: 2, Marker: true, // Marker bit indicates complete KLV unit PayloadType: 96, SequenceNumber: 123, Timestamp: 45343, SSRC: 563423, }, Payload: []byte{ // KLV Universal Label Key (16 bytes) - starts with 0x060e2b34 0x06, 0x0e, 0x2b, 0x34, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, // Length (1 byte, short form: 4 bytes of data) 0x04, // Value (4 bytes) 0x01, 0x02, 0x03, 0x04, }, }, }, decoded: unit.PayloadKLV{ // Complete KLV unit: Universal Label Key + Length + Value 0x06, 0x0e, 0x2b, 0x34, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x04, 0x01, 0x02, 0x03, 0x04, }, }, } func TestRTPDecoder(t *testing.T) { for _, ca := range casesDecodeEncode { t.Run(ca.name, func(t *testing.T) { desc := &description.Session{Medias: []*description.Media{{ Formats: []format.Format{ca.format}, }}} strm := &stream.Stream{ OrigDesc: desc, WriteQueueSize: 512, RTPMaxPayloadSize: 1450, Parent: test.NilLogger, } err := strm.Initialize() require.NoError(t, err) defer strm.Close() subStream := &stream.SubStream{ Stream: strm, UseRTPPackets: true, } err = subStream.Initialize() require.NoError(t, err) r := &stream.Reader{} recv := make(chan *unit.Unit) r.OnData(desc.Medias[0], ca.format, func(u *unit.Unit) error { if !u.NilPayload() { recv <- u close(recv) } return nil }) strm.AddReader(r) defer strm.RemoveReader(r) for _, pkt := range ca.encoded { subStream.WriteUnit(desc.Medias[0], ca.format, &unit.Unit{ RTPPackets: []*rtp.Packet{pkt}, }) } received := <-recv require.Equal(t, ca.decoded, received.Payload) }) } }