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Copy pathpsi_packetize_test.go
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psi_packetize_test.go
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package mpegts
import (
"encoding/binary"
"testing"
"github.com/stretchr/testify/assert"
"github.com/cesbo/go-mpegts/crc32"
)
type psiMock int
const (
psiMockHeaderSize = 10
)
var psiMockHeader [psiMockHeaderSize]byte
func (p psiMock) Packetize() *PsiPacketizer {
return newPsiPacketizer(p)
}
func (p psiMock) sectionSize(i int) int {
switch p {
case 0:
// Test_Packetizer_SingleTS
switch i {
case -1:
return psiMockHeaderSize + 5 + 10 + crc32.Size
case 1:
return 0
}
case 1:
// Test_Packetizer_TwoTS
switch i {
case -1:
return psiMockHeaderSize + (183 - psiMockHeaderSize - 2) + crc32.Size
case 1:
return 0
}
case 2:
// Test_Packetizer_TwoSections
switch i {
case -1:
return psiMockHeaderSize + 200 + crc32.Size
case 1:
return psiMockHeaderSize + 200 + crc32.Size
case 2:
return 0
}
}
panic("unreachable")
}
func (p psiMock) sectionHeader(i int) []byte {
if i == -1 {
for i := 0; i < len(psiMockHeader); i++ {
psiMockHeader[i] = byte(i + 10)
}
psiMockHeader[1] = 0xF0 // section_length 1
psiMockHeader[2] = 0x00 // section_length 2
psiMockHeader[6] = 0 // section_number
psiMockHeader[7] = 0 // last_section_number
switch p {
case 0:
// Test_Packetizer_SingleTS
psiMockHeader[8] = 0xF0
psiMockHeader[9] = 0x05
case 1:
// Test_Packetizer_TwoTS
psiMockHeader[8] = 0xF0
psiMockHeader[9] = 0x00
case 2:
// Test_Packetizer_TwoSections
psiMockHeader[7] = 1
psiMockHeader[8] = 0xF0
psiMockHeader[9] = 0x00
}
} else {
psiMockHeader[6] += 1
psiMockHeader[8] = 0xF0
psiMockHeader[9] = 0x00
}
return psiMockHeader[:]
}
func (p psiMock) sectionItem(i int) []byte {
switch p {
case 0:
// Test_Packetizer_SingleTS
switch i {
case -1:
return []byte{0x40, 0x03, 0xAA, 0xBB, 0xCC}
case 0:
h := make([]byte, 10)
for z := 0; z < len(h); z++ {
h[z] = 0xA0 + byte(z)
}
return h
default:
panic("unreachable")
}
case 1:
// Test_Packetizer_TwoTS
switch i {
case -1:
return []byte{}
case 0:
h := make([]byte, 183-psiMockHeaderSize-2)
for z := 0; z < len(h); z++ {
h[z] = 0x50 + byte(z)
}
return h
default:
panic("unreachable")
}
case 2:
// Test_Packetizer_TwoSections
switch i {
case -1:
return []byte{}
case 0:
h := make([]byte, 200)
for z := 0; z < len(h); z++ {
h[z] = 0x10 + byte(z)
}
return h
case 1:
h := make([]byte, 200)
for z := 0; z < len(h); z++ {
h[z] = 0x20 + byte(z)
}
return h
}
}
panic("unknown test id")
}
func TestPacketize_SingleTS(t *testing.T) {
assert := assert.New(t)
expected := TS{
0x47, 0x40 | 0x11, 0x67, 0x10 | 1,
0x00,
10, 0xF0, 0x00, 13, 14, 15, 0, 0, 0xF0, 0x05,
0x40, 0x03, 0xAA, 0xBB, 0xCC,
0xA0, 0xA1, 0xA2, 0xA3, 0xA4,
0xA5, 0xA6, 0xA7, 0xA8, 0xA9,
0x00, 0x00, 0x00, 0x00,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
}
totalLength := psiMockHeaderSize + 5 + 10 + crc32.Size
expected[7] = byte(totalLength - PsiHeaderSize)
crc := crc32.Checksum(0xFFFFFFFF, expected[5:5+totalLength-crc32.Size])
binary.BigEndian.PutUint32(expected[5+totalLength-crc32.Size:], crc)
psi := psiMock(0)
ts := NewTS(4455)
ts.SetCC(1)
call := 0
for p := psi.Packetize(); p.Next(ts); ts.IncrementCC() {
if call == 0 {
assert.Equal(expected, ts[:len(expected)])
}
call += 1
}
assert.Equal(1, call)
}
func TestPacketize_TwoTS(t *testing.T) {
assert := assert.New(t)
expected1 := TS{
0x47, 0x40 | 0x11, 0x67, 0x10 | 1,
0x00,
10, 0xF0, 0x00, 13, 14, 15, 0, 0, 0xF0, 0x00,
0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F,
0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F,
0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F,
0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D, 0x9E, 0x9F,
0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF,
0xB0, 0xB1, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE, 0xBF,
0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF,
0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF,
0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA,
0x00, 0x00,
}
totalLength := psiMockHeaderSize + (183 - psiMockHeaderSize - 2) + crc32.Size
expected1[7] = byte(totalLength - PsiHeaderSize)
crc := crc32.Checksum(0xFFFFFFFF, expected1[5:5+totalLength-crc32.Size])
expected1[186] = byte(crc >> 24)
expected1[187] = byte(crc >> 16)
expected2 := TS{
0x47, 0x11, 0x67, 0x10 | 2,
0x00, 0x00,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
}
expected2[4] = byte(crc >> 8)
expected2[5] = byte(crc)
psi := psiMock(1)
counter := 0
ts := NewTS(4455)
ts.SetCC(1)
for p := psi.Packetize(); p.Next(ts); ts.IncrementCC() {
switch counter {
case 0:
assert.Equal(expected1, ts)
case 1:
assert.Equal(expected2, ts[:len(expected2)])
}
counter += 1
}
assert.Equal(2, counter)
}
func TestPacketize_TwoSections(t *testing.T) {
assert := assert.New(t)
var crc uint32
expected11 := TS{
0x47, 0x40 | 0x11, 0x67, 0x10 | 1,
0x00,
10, 0xF0, 0x00, 13, 14, 15, 0, 1, 0xF0, 0x00,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F,
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F,
0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F,
0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F,
0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F,
0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F,
0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D, 0x9E, 0x9F,
0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF,
0xB0, 0xB1, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xBB, 0xBC,
}
expected12 := TS{
0x47, 0x11, 0x67, 0x10 | 2,
0xBD, 0xBE, 0xBF, 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xCB, 0xCC,
0xCD, 0xCE, 0xCF, 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7,
0x00, 0x00, 0x00, 0x00,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
}
expected11[7] = byte(psiMockHeaderSize + 200 + crc32.Size - PsiHeaderSize)
crc = crc32.Checksum(0xFFFFFFFF, expected11[5:])
crc = crc32.Checksum(crc, expected12[4:4+27])
binary.BigEndian.PutUint32(expected12[4+27:], crc)
// second section
expected21 := TS{
0x47, 0x40 | 0x11, 0x67, 0x10 | 3,
0x00,
10, 0xF0, 0x00, 13, 14, 15, 1, 1, 0xF0, 0x00,
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F,
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F,
0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F,
0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F,
0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F,
0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F,
0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D, 0x9E, 0x9F,
0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF,
0xB0, 0xB1, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE, 0xBF,
0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xCB, 0xCC,
}
expected22 := TS{
0x47, 0x11, 0x67, 0x10 | 4,
0xCD, 0xCE, 0xCF, 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xDB, 0xDC,
0xDD, 0xDE, 0xDF, 0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
0x00, 0x00, 0x00, 0x00,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
}
expected21[7] = byte(psiMockHeaderSize + 200 + crc32.Size - PsiHeaderSize)
crc = crc32.Checksum(0xFFFFFFFF, expected21[5:])
crc = crc32.Checksum(crc, expected22[4:4+27])
binary.BigEndian.PutUint32(expected22[4+27:], crc)
psi := psiMock(2)
counter := 0
ts := NewTS(4455)
ts.SetCC(1)
for p := psi.Packetize(); p.Next(ts); ts.IncrementCC() {
switch counter {
case 0:
assert.Equal(expected11, ts)
case 1:
assert.Equal(expected12, ts[:len(expected12)])
case 2:
assert.Equal(expected21, ts)
case 3:
assert.Equal(expected22, ts[:len(expected22)])
}
counter += 1
}
assert.Equal(4, counter)
}