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writer_test.go
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writer_test.go
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/*
Package m3u8. Playlist generation tests.
Copyright 2013-2019, 2023 The Project Developers.
See the AUTHORS and LICENSE files at the top-level directory of this distribution
and at https://github.com/bitmovin-engineering/m3u8/
ॐ तारे तुत्तारे तुरे स्व
*/
package m3u8
import (
"bufio"
"bytes"
"fmt"
"io/ioutil"
"os"
"reflect"
"strings"
"sync"
"testing"
"time"
)
// Check how master and media playlists implement common Playlist interface
func TestInterfaceImplemented(t *testing.T) {
m := NewMasterPlaylist()
CheckType(t, m)
p, e := NewMediaPlaylist(1, 2)
if e != nil {
t.Fatalf("Create media playlist failed: %s", e)
}
CheckType(t, p)
}
// Create new media playlist with wrong size (must be failed)
func TestCreateMediaPlaylistWithWrongSize(t *testing.T) {
_, e := NewMediaPlaylist(2, 1) // wrong winsize
if e == nil {
t.Fatal("Create new media playlist must be failed, but it's don't")
}
}
// Tests the last method on media playlist
func TestLastSegmentMediaPlaylist(t *testing.T) {
p, _ := NewMediaPlaylist(5, 5)
if p.last() != 4 {
t.Errorf("last is %v, expected: 4", p.last())
}
for i := uint(0); i < 5; i++ {
_ = p.Append("uri.ts", 4, "")
if p.last() != i {
t.Errorf("last is: %v, expected: %v", p.last(), i)
}
}
}
// Create new media playlist
// Add two segments to media playlist
func TestAddSegmentToMediaPlaylist(t *testing.T) {
p, e := NewMediaPlaylist(1, 2)
if e != nil {
t.Fatalf("Create media playlist failed: %s", e)
}
e = p.Append("test01.ts", 10.0, "title")
if e != nil {
t.Errorf("Add 1st segment to a media playlist failed: %s", e)
}
if p.Segments[0].URI != "test01.ts" {
t.Errorf("Expected: test01.ts, got: %v", p.Segments[0].URI)
}
if p.Segments[0].Duration != 10 {
t.Errorf("Expected: 10, got: %v", p.Segments[0].Duration)
}
if p.Segments[0].Title != "title" {
t.Errorf("Expected: title, got: %v", p.Segments[0].Title)
}
if p.Segments[0].SeqId != 0 {
t.Errorf("Excepted SeqId: 0, got: %v", p.Segments[0].SeqId)
}
}
func TestAppendSegmentToMediaPlaylist(t *testing.T) {
p, _ := NewMediaPlaylist(2, 2)
e := p.AppendSegment(&MediaSegment{Duration: 10})
if e != nil {
t.Errorf("Add 1st segment to a media playlist failed: %s", e)
}
if p.TargetDuration != 10 {
t.Errorf("Failed to increase TargetDuration, expected: 10, got: %v", p.TargetDuration)
}
e = p.AppendSegment(&MediaSegment{Duration: 10})
if e != nil {
t.Errorf("Add 2nd segment to a media playlist failed: %s", e)
}
e = p.AppendSegment(&MediaSegment{Duration: 10})
if e != ErrPlaylistFull {
t.Errorf("Add 3rd expected full error, got: %s", e)
}
if p.Count() != 2 {
t.Errorf("Except segments in playlist: 2, got: %v", p.Count())
}
if p.SeqNo != 0 || p.Segments[0].SeqId != 0 || p.Segments[1].SeqId != 1 {
t.Errorf("Excepted SeqNo and SeqId: 0/0/1, got: %v/%v/%v", p.SeqNo, p.Segments[0].SeqId, p.Segments[1].SeqId)
}
}
// Create new media playlist
// Add three segments to media playlist
// Set discontinuity tag for the 2nd segment.
func TestDiscontinuityForMediaPlaylist(t *testing.T) {
var e error
p, e := NewMediaPlaylist(3, 4)
if e != nil {
t.Fatalf("Create media playlist failed: %s", e)
}
p.Close()
if e = p.Append("test01.ts", 5.0, ""); e != nil {
t.Errorf("Add 1st segment to a media playlist failed: %s", e)
}
if e = p.Append("test02.ts", 6.0, ""); e != nil {
t.Errorf("Add 2nd segment to a media playlist failed: %s", e)
}
if e = p.SetDiscontinuity(); e != nil {
t.Error("Can't set discontinuity tag")
}
if e = p.Append("test03.ts", 6.0, ""); e != nil {
t.Errorf("Add 3nd segment to a media playlist failed: %s", e)
}
// fmt.Println(p.Encode().String())
}
// Create new media playlist
// Add three segments to media playlist
// Set program date and time for 2nd segment.
// Set discontinuity tag for the 2nd segment.
func TestProgramDateTimeForMediaPlaylist(t *testing.T) {
var e error
p, e := NewMediaPlaylist(3, 4)
if e != nil {
t.Fatalf("Create media playlist failed: %s", e)
}
p.Close()
if e = p.Append("test01.ts", 5.0, ""); e != nil {
t.Errorf("Add 1st segment to a media playlist failed: %s", e)
}
if e = p.Append("test02.ts", 6.0, ""); e != nil {
t.Errorf("Add 2nd segment to a media playlist failed: %s", e)
}
loc, _ := time.LoadLocation("Europe/Moscow")
if e = p.SetProgramDateTime(time.Date(2010, time.November, 30, 16, 25, 0, 125*1e6, loc)); e != nil {
t.Error("Can't set program date and time")
}
if e = p.SetDiscontinuity(); e != nil {
t.Error("Can't set discontinuity tag")
}
if e = p.Append("test03.ts", 6.0, ""); e != nil {
t.Errorf("Add 3nd segment to a media playlist failed: %s", e)
}
// fmt.Println(p.Encode().String())
}
// Create new media playlist
// Add two segments to media playlist with duration 9.0 and 9.1.
// Target duration must be set to nearest greater integer (= 10).
func TestTargetDurationForMediaPlaylist(t *testing.T) {
p, e := NewMediaPlaylist(1, 2)
if e != nil {
t.Fatalf("Create media playlist failed: %s", e)
}
e = p.Append("test01.ts", 9.0, "")
if e != nil {
t.Errorf("Add 1st segment to a media playlist failed: %s", e)
}
e = p.Append("test02.ts", 9.1, "")
if e != nil {
t.Errorf("Add 2nd segment to a media playlist failed: %s", e)
}
if p.TargetDuration < 10.0 {
t.Errorf("Target duration must = 10 (nearest greater integer to durations 9.0 and 9.1)")
}
}
// Create new media playlist with capacity 10 elements
// Try to add 11 segments to media playlist (oversize error)
func TestOverAddSegmentsToMediaPlaylist(t *testing.T) {
p, e := NewMediaPlaylist(1, 10)
if e != nil {
t.Fatalf("Create media playlist failed: %s", e)
}
for i := 0; i < 11; i++ {
e = p.Append(fmt.Sprintf("test%d.ts", i), 5.0, "")
if e != nil {
t.Logf("As expected new segment #%d not assigned to a media playlist: %s due oversize\n", i, e)
}
}
}
func TestSetSCTE35(t *testing.T) {
p, _ := NewMediaPlaylist(1, 2)
scte := &SCTE{Cue: "some cue"}
if err := p.SetSCTE35(scte); err == nil {
t.Error("SetSCTE35 expected empty playlist error")
}
_ = p.Append("test01.ts", 10.0, "title")
if err := p.SetSCTE35(scte); err != nil {
t.Errorf("SetSCTE35 did not expect error: %v", err)
}
if !reflect.DeepEqual(p.Segments[0].SCTE, scte) {
t.Errorf("SetSCTE35\nexp: %#v\ngot: %#v", scte, p.Segments[0].SCTE)
}
}
// Create new media playlist
// Add segment to media playlist
// Set SCTE
func TestSetSCTEForMediaPlaylist(t *testing.T) {
tests := []struct {
Cue string
ID string
Time float64
Expected string
}{
{"CueData1", "", 0, `#EXT-SCTE35:CUE="CueData1"` + "\n"},
{"CueData2", "ID2", 0, `#EXT-SCTE35:CUE="CueData2",ID="ID2"` + "\n"},
{"CueData3", "ID3", 3.141, `#EXT-SCTE35:CUE="CueData3",ID="ID3",TIME=3.141` + "\n"},
{"CueData4", "", 3.1, `#EXT-SCTE35:CUE="CueData4",TIME=3.1` + "\n"},
{"CueData5", "", 3.0, `#EXT-SCTE35:CUE="CueData5",TIME=3` + "\n"},
}
for _, test := range tests {
p, e := NewMediaPlaylist(1, 1)
if e != nil {
t.Fatalf("Create media playlist failed: %s", e)
}
if e = p.Append("test01.ts", 5.0, ""); e != nil {
t.Errorf("Add 1st segment to a media playlist failed: %s", e)
}
if e := p.SetSCTE(test.Cue, test.ID, test.Time); e != nil {
t.Errorf("SetSCTE to a media playlist failed: %s", e)
}
if !strings.Contains(p.String(), test.Expected) {
t.Errorf("Test %+v did not contain: %q, playlist: %v", test, test.Expected, p.String())
}
}
}
// Create new media playlist
// Add segment to media playlist
// Set encryption key
func TestSetKeyForMediaPlaylist(t *testing.T) {
tests := []struct {
KeyFormat string
KeyFormatVersions string
ExpectVersion uint8
}{
{"", "", 3},
{"Format", "", 5},
{"", "Version", 5},
{"Format", "Version", 5},
}
for _, test := range tests {
p, e := NewMediaPlaylist(3, 5)
if e != nil {
t.Fatalf("Create media playlist failed: %s", e)
}
if e = p.Append("test01.ts", 5.0, ""); e != nil {
t.Errorf("Add 1st segment to a media playlist failed: %s", e)
}
if e := p.SetKey("AES-128", "https://example.com", "iv", test.KeyFormat, test.KeyFormatVersions); e != nil {
t.Errorf("Set key to a media playlist failed: %s", e)
}
if p.ver != test.ExpectVersion {
t.Errorf("Set key playlist version: %v, expected: %v", p.ver, test.ExpectVersion)
}
}
}
// Create new media playlist
// Add segment to media playlist
// Set encryption key
func TestSetDefaultKeyForMediaPlaylist(t *testing.T) {
tests := []struct {
KeyFormat string
KeyFormatVersions string
ExpectVersion uint8
}{
{"", "", 3},
{"Format", "", 5},
{"", "Version", 5},
{"Format", "Version", 5},
}
for _, test := range tests {
p, e := NewMediaPlaylist(3, 5)
if e != nil {
t.Fatalf("Create media playlist failed: %s", e)
}
if e := p.SetDefaultKey("AES-128", "https://example.com", "iv", test.KeyFormat, test.KeyFormatVersions); e != nil {
t.Errorf("Set key to a media playlist failed: %s", e)
}
if p.ver != test.ExpectVersion {
t.Errorf("Set key playlist version: %v, expected: %v", p.ver, test.ExpectVersion)
}
}
}
// Create new media playlist
// Set default map
func TestSetDefaultMapForMediaPlaylist(t *testing.T) {
p, e := NewMediaPlaylist(3, 5)
if e != nil {
t.Fatalf("Create media playlist failed: %s", e)
}
p.SetDefaultMap("https://example.com", 1000*1024, 1024*1024)
expected := `EXT-X-MAP:URI="https://example.com",BYTERANGE=1024000@1048576`
if !strings.Contains(p.String(), expected) {
t.Fatalf("Media playlist did not contain: %s\nMedia Playlist:\n%v", expected, p.String())
}
}
// Create new media playlist
// Add segment to media playlist
// Set map on segment
func TestSetMapForMediaPlaylist(t *testing.T) {
p, e := NewMediaPlaylist(3, 5)
if e != nil {
t.Fatalf("Create media playlist failed: %s", e)
}
e = p.Append("test01.ts", 5.0, "")
if e != nil {
t.Errorf("Add 1st segment to a media playlist failed: %s", e)
}
e = p.SetMap("https://example.com", 1000*1024, 1024*1024)
if e != nil {
t.Errorf("Set map to a media playlist failed: %s", e)
}
expected := `EXT-X-MAP:URI="https://example.com",BYTERANGE=1024000@1048576
#EXTINF:5.000,
test01.ts`
if !strings.Contains(p.String(), expected) {
t.Fatalf("Media playlist did not contain: %s\nMedia Playlist:\n%v", expected, p.String())
}
}
// Create new media playlist
// Set default map
// Add segment to media playlist
// Set map on segment (should be ignored when encoding)
func TestEncodeMediaPlaylistWithDefaultMap(t *testing.T) {
p, e := NewMediaPlaylist(3, 5)
if e != nil {
t.Fatalf("Create media playlist failed: %s", e)
}
p.SetDefaultMap("https://example.com", 1000*1024, 1024*1024)
e = p.Append("test01.ts", 5.0, "")
if e != nil {
t.Errorf("Add 1st segment to a media playlist failed: %s", e)
}
e = p.SetMap("https://notencoded.com", 1000*1024, 1024*1024)
if e != nil {
t.Errorf("Set map to segment failed: %s", e)
}
encoded := p.String()
expected := `EXT-X-MAP:URI="https://example.com",BYTERANGE=1024000@1048576`
if !strings.Contains(encoded, expected) {
t.Fatalf("Media playlist did not contain: %s\nMedia Playlist:\n%v", expected, encoded)
}
ignored := `EXT-X-MAP:URI="https://notencoded.com"`
if strings.Contains(encoded, ignored) {
t.Fatalf("Media playlist contains non default map: %s\nMedia Playlist:\n%v", ignored, encoded)
}
}
// Create new media playlist
// Add custom playlist tag
// Add segment with custom tag
func TestEncodeMediaPlaylistWithCustomTags(t *testing.T) {
p, e := NewMediaPlaylist(1, 1)
if e != nil {
t.Fatalf("Create media playlist failed: %s", e)
}
customPTag := &MockCustomTag{
name: "#CustomPTag",
encodedString: "#CustomPTag",
}
p.SetCustomTag(customPTag)
customEmptyPTag := &MockCustomTag{
name: "#CustomEmptyPTag",
encodedString: "",
}
p.SetCustomTag(customEmptyPTag)
e = p.Append("test01.ts", 5.0, "")
if e != nil {
t.Fatalf("Add 1st segment to a media playlist failed: %s", e)
}
customSTag := &MockCustomTag{
name: "#CustomSTag",
encodedString: "#CustomSTag",
}
e = p.SetCustomSegmentTag(customSTag)
if e != nil {
t.Fatalf("Set CustomTag to segment failed: %s", e)
}
customEmptySTag := &MockCustomTag{
name: "#CustomEmptySTag",
encodedString: "",
}
e = p.SetCustomSegmentTag(customEmptySTag)
if e != nil {
t.Fatalf("Set CustomTag to segment failed: %s", e)
}
encoded := p.String()
expectedStrings := []string{"#CustomPTag", "#CustomSTag"}
for _, expected := range expectedStrings {
if !strings.Contains(encoded, expected) {
t.Fatalf("Media playlist does not contain custom tag: %s\nMedia Playlist:\n%v", expected, encoded)
}
}
unexpectedStrings := []string{"#CustomEmptyPTag", "#CustomEmptySTag"}
for _, unexpected := range unexpectedStrings {
if strings.Contains(encoded, unexpected) {
t.Fatalf("Media playlist contains unexpected custom tag: %s\nMedia Playlist:\n%v", unexpected, encoded)
}
}
}
// Create new media playlist
// Add two segments to media playlist
// Encode structures to HLS
func TestEncodeMediaPlaylist(t *testing.T) {
p, e := NewMediaPlaylist(3, 5)
if e != nil {
t.Fatalf("Create media playlist failed: %s", e)
}
e = p.Append("test01.ts", 5.0, "")
if e != nil {
t.Errorf("Add 1st segment to a media playlist failed: %s", e)
}
p.DurationAsInt(true)
// fmt.Println(p.Encode().String())
}
// Create new media playlist
// Add 10 segments to media playlist
// Test iterating over segments
func TestLoopSegmentsOfMediaPlaylist(t *testing.T) {
p, e := NewMediaPlaylist(3, 5)
if e != nil {
t.Fatalf("Create media playlist failed: %s", e)
}
for i := 0; i < 5; i++ {
e = p.Append(fmt.Sprintf("test%d.ts", i), 5.0, "")
if e != nil {
t.Errorf("Add segment #%d to a media playlist failed: %s", i, e)
}
}
p.DurationAsInt(true)
// fmt.Println(p.Encode().String())
}
// Create new media playlist with capacity 5
// Add 5 segments and 5 unique keys
// Test correct keys set on correct segments
func TestEncryptionKeysInMediaPlaylist(t *testing.T) {
p, _ := NewMediaPlaylist(5, 5)
// Add 5 segments and set custom encryption key
for i := uint(0); i < 5; i++ {
uri := fmt.Sprintf("uri-%d", i)
expected := &Key{
Method: "AES-128",
URI: uri,
IV: fmt.Sprintf("%d", i),
Keyformat: "identity",
Keyformatversions: "1",
}
_ = p.Append(uri+".ts", 4, "")
_ = p.SetKey(expected.Method, expected.URI, expected.IV, expected.Keyformat, expected.Keyformatversions)
if p.Segments[i].Key == nil {
t.Fatalf("Key was not set on segment %v", i)
}
if *p.Segments[i].Key != *expected {
t.Errorf("Key %+v does not match expected %+v", p.Segments[i].Key, expected)
}
}
}
func TestEncryptionKeyMethodNoneInMediaPlaylist(t *testing.T) {
p, e := NewMediaPlaylist(5, 5)
if e != nil {
t.Fatalf("Create media playlist failed: %s", e)
}
p.Append("segment-1.ts", 4, "")
p.SetKey("AES-128", "key-uri", "iv", "identity", "1")
p.Append("segment-2.ts", 4, "")
p.SetKey("NONE", "", "", "", "")
expected := `#EXT-X-KEY:METHOD=NONE
#EXTINF:4.000,
segment-2.ts`
if !strings.Contains(p.String(), expected) {
t.Errorf("Manifest %+v did not contain expected %+v", p, expected)
}
}
// Create new media playlist
// Add 10 segments to media playlist
// Encode structure to HLS with integer target durations
func TestMediaPlaylistWithIntegerDurations(t *testing.T) {
p, e := NewMediaPlaylist(3, 10)
if e != nil {
t.Fatalf("Create media playlist failed: %s", e)
}
for i := 0; i < 9; i++ {
e = p.Append(fmt.Sprintf("test%d.ts", i), 5.6, "")
if e != nil {
t.Errorf("Add segment #%d to a media playlist failed: %s", i, e)
}
}
p.DurationAsInt(false)
// fmt.Println(p.Encode().String())
}
// Create new media playlist
// Add 9 segments to media playlist
// 11 times encode structure to HLS with integer target durations
// Last playlist must be empty
func TestMediaPlaylistWithEmptyMedia(t *testing.T) {
p, e := NewMediaPlaylist(3, 10)
if e != nil {
t.Fatalf("Create media playlist failed: %s", e)
}
for i := 1; i < 10; i++ {
e = p.Append(fmt.Sprintf("test%d.ts", i), 5.6, "")
if e != nil {
t.Errorf("Add segment #%d to a media playlist failed: %s", i, e)
}
}
for i := 1; i < 11; i++ {
// fmt.Println(p.Encode().String())
p.Remove()
} // TODO add check for buffers equality
}
// Create new media playlist with winsize == capacity
func TestMediaPlaylistWinsize(t *testing.T) {
p, e := NewMediaPlaylist(6, 6)
if e != nil {
t.Fatalf("Create media playlist failed: %s", e)
}
for i := 1; i < 10; i++ {
p.Slide(fmt.Sprintf("test%d.ts", i), 5.6, "")
// fmt.Println(p.Encode().String()) // TODO check playlist sizes and mediasequence values
}
}
// Create new media playlist as sliding playlist.
// Close it.
func TestClosedMediaPlaylist(t *testing.T) {
p, e := NewMediaPlaylist(1, 10)
if e != nil {
t.Fatalf("Create media playlist failed: %s", e)
}
for i := 0; i < 10; i++ {
e = p.Append(fmt.Sprintf("test%d.ts", i), 5.0, "")
if e != nil {
t.Errorf("Due oversize new segment #%d not assigned to a media playlist: %s\n", i, e)
}
}
p.Close()
}
// Create new media playlist as sliding playlist.
func TestLargeMediaPlaylistWithParallel(t *testing.T) {
testCount := 10
expect, err := ioutil.ReadFile("sample-playlists/media-playlist-large.m3u8")
if err != nil {
t.Fatal(err)
}
var wg sync.WaitGroup
for i := 0; i < testCount; i++ {
wg.Add(1)
go func() {
defer wg.Done()
f, err := os.Open("sample-playlists/media-playlist-large.m3u8")
if err != nil {
t.Fatal(err)
}
p, err := NewMediaPlaylist(50000, 50000)
if err != nil {
t.Fatalf("Create media playlist failed: %s", err)
}
if err = p.DecodeFrom(bufio.NewReader(f), true); err != nil {
t.Fatal(err)
}
actual := p.Encode().Bytes() // disregard output
if bytes.Compare(expect, actual) != 0 {
t.Fatal("not matched")
}
}()
wg.Wait()
}
}
func TestMediaVersion(t *testing.T) {
m, _ := NewMediaPlaylist(3, 3)
m.ver = 5
if m.Version() != m.ver {
t.Errorf("Expected version: %v, got: %v", m.ver, m.Version())
}
}
func TestMediaSetVersion(t *testing.T) {
m, _ := NewMediaPlaylist(3, 3)
m.ver = 3
m.SetVersion(5)
if m.ver != 5 {
t.Errorf("Expected version: %v, got: %v", 5, m.ver)
}
}
func TestMediaWinSize(t *testing.T) {
m, _ := NewMediaPlaylist(3, 3)
if m.WinSize() != m.winsize {
t.Errorf("Expected winsize: %v, got: %v", m.winsize, m.WinSize())
}
}
func TestMediaSetWinSize(t *testing.T) {
m, _ := NewMediaPlaylist(3, 5)
err := m.SetWinSize(5)
if err != nil {
t.Fatal(err)
}
if m.winsize != 5 {
t.Errorf("Expected winsize: %v, got: %v", 5, m.winsize)
}
// Check winsize cannot exceed capacity
err = m.SetWinSize(99999)
if err == nil {
t.Error("Expected error, received: ", err)
}
// Ensure winsize didn't change
if m.winsize != 5 {
t.Errorf("Expected winsize: %v, got: %v", 5, m.winsize)
}
}
func TestIndependentSegments(t *testing.T) {
m := NewMasterPlaylist()
if m.IndependentSegments() != false {
t.Errorf("Expected independent segments to be false by default")
}
m.SetIndependentSegments(true)
if m.IndependentSegments() != true {
t.Errorf("Expected independent segments to be true")
}
if !strings.Contains(m.Encode().String(), "#EXT-X-INDEPENDENT-SEGMENTS") {
t.Error("Expected playlist to contain EXT-X-INDEPENDENT-SEGMENTS tag")
}
}
// Create new media playlist
// Set default map
func TestStartTimeOffset(t *testing.T) {
p, e := NewMediaPlaylist(3, 5)
if e != nil {
t.Fatalf("Create media playlist failed: %s", e)
}
p.StartTime = 3.4
expected := `#EXT-X-START:TIME-OFFSET=3.4`
if !strings.Contains(p.String(), expected) {
t.Fatalf("Media playlist did not contain: %s\nMedia Playlist:\n%v", expected, p.String())
}
}
func TestMediaPlaylist_Slide(t *testing.T) {
m, e := NewMediaPlaylist(3, 4)
if e != nil {
t.Fatalf("Failed to create media playlist: %v", e)
}
_ = m.Append("t00.ts", 10, "")
_ = m.Append("t01.ts", 10, "")
_ = m.Append("t02.ts", 10, "")
_ = m.Append("t03.ts", 10, "")
if m.Count() != 4 {
t.Fatalf("Excepted segments in media playlist: 4, got: %v", m.Count())
}
if m.SeqNo != 0 {
t.Errorf("Excepted SeqNo of media playlist: 0, got: %v", m.SeqNo)
}
var seqId, idx uint
for idx, seqId = 0, 0; idx < 3; idx, seqId = idx+1, seqId+1 {
segIdx := (m.head + idx) % m.capacity
segUri := fmt.Sprintf("t%02d.ts", seqId)
seg := m.Segments[segIdx]
if seg.URI != segUri || seg.SeqId != uint64(seqId) {
t.Errorf("Excepted segment: %s with SeqId: %v, got: %v/%v", segUri, seqId, seg.URI, seg.SeqId)
}
}
m.Slide("t04.ts", 10, "")
if m.Count() != 4 {
t.Fatalf("Excepted segments in media playlist: 4, got: %v", m.Count())
}
if m.SeqNo != 1 {
t.Errorf("Excepted SeqNo of media playlist: 1, got: %v", m.SeqNo)
}
for idx, seqId = 0, 1; idx < 3; idx, seqId = idx+1, seqId+1 {
segIdx := (m.head + idx) % m.capacity
segUri := fmt.Sprintf("t%02d.ts", seqId)
seg := m.Segments[segIdx]
if seg.URI != segUri || seg.SeqId != uint64(seqId) {
t.Errorf("Excepted segment: %s with SeqId: %v, got: %v/%v", segUri, seqId, seg.URI, seg.SeqId)
}
}
m.Slide("t05.ts", 10, "")
m.Slide("t06.ts", 10, "")
if m.Count() != 4 {
t.Fatalf("Excepted segments in media playlist: 4, got: %v", m.Count())
}
if m.SeqNo != 3 {
t.Errorf("Excepted SeqNo of media playlist: 1, got: %v", m.SeqNo)
}
for idx, seqId = 0, 3; idx < 3; idx, seqId = idx+1, seqId+1 {
segIdx := (m.head + idx) % m.capacity
segUri := fmt.Sprintf("t%02d.ts", seqId)
seg := m.Segments[segIdx]
if seg.URI != segUri || seg.SeqId != uint64(seqId) {
t.Errorf("Excepted segment: %s with SeqId: %v, got: %v/%v", segUri, seqId, seg.URI, seg.SeqId)
}
}
}
// Create new master playlist without params
// Add media playlist
func TestNewMasterPlaylist(t *testing.T) {
m := NewMasterPlaylist()
p, e := NewMediaPlaylist(3, 5)
if e != nil {
t.Fatalf("Create media playlist failed: %s", e)
}
for i := 0; i < 5; i++ {
e = p.Append(fmt.Sprintf("test%d.ts", i), 5.0, "")
if e != nil {
t.Errorf("Add segment #%d to a media playlist failed: %s", i, e)
}
}
m.Append("chunklist1.m3u8", p, VariantParams{})
}
// Create new master playlist without params
// Add media playlist with Alternatives
func TestNewMasterPlaylistWithAlternatives(t *testing.T) {
m := NewMasterPlaylist()
audioUri := fmt.Sprintf("%s/rendition.m3u8", "800")
two := uint64(2)
audioAlt := &Alternative{
GroupId: "audio",
URI: audioUri,
Type: "AUDIO",
Name: "main",
Default: true,
Autoselect: "YES",
Language: "english",
Channels: &two,
}
p, e := NewMediaPlaylist(3, 5)
if e != nil {
t.Fatalf("Create media playlist failed: %s", e)
}
for i := 0; i < 5; i++ {
e = p.Append(fmt.Sprintf("test%d.ts", i), 5.0, "")
if e != nil {
t.Errorf("Add segment #%d to a media playlist failed: %s", i, e)
}
}
m.Append("chunklist1.m3u8", p, VariantParams{Alternatives: []*Alternative{audioAlt}})
if m.ver != 4 {
t.Fatalf("Expected version 4, actual, %d", m.ver)
}
expected := `#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="audio",NAME="main",DEFAULT=YES,AUTOSELECT=YES,LANGUAGE="english",CHANNELS=2,URI="800/rendition.m3u8"`
if !strings.Contains(m.String(), expected) {
t.Fatalf("Master playlist did not contain: %s\nMaster Playlist:\n%v", expected, m.String())
}
}
// Create new master playlist supporting CLOSED-CAPTIONS=NONE
func TestNewMasterPlaylistWithClosedCaptionEqNone(t *testing.T) {
m := NewMasterPlaylist()
zero := uint32(0)
vp := &VariantParams{
ProgramId: &zero,
Bandwidth: 8000,
Codecs: "avc1",
Resolution: "1280x720",
Audio: "audio0",
Captions: "NONE",
}
p, err := NewMediaPlaylist(1, 1)
if err != nil {
t.Fatalf("Create media playlist failed: %s", err)
}
m.Append(fmt.Sprintf("eng_rendition_rendition.m3u8"), p, *vp)
expected := "CLOSED-CAPTIONS=NONE"
if !strings.Contains(m.String(), expected) {
t.Fatalf("Master playlist did not contain: %s\nMaster Playlist:\n%v", expected, m.String())
}
// quotes need to be include if not eq NONE
vp.Captions = "CC1"
m2 := NewMasterPlaylist()
m2.Append(fmt.Sprintf("eng_rendition_rendition.m3u8"), p, *vp)
expected = `CLOSED-CAPTIONS="CC1"`
if !strings.Contains(m2.String(), expected) {
t.Fatalf("Master playlist did not contain: %s\nMaster Playlist:\n%v", expected, m2.String())
}
}
// Create new master playlist with params
// Add media playlist
func TestNewMasterPlaylistWithParams(t *testing.T) {
m := NewMasterPlaylist()
p, e := NewMediaPlaylist(3, 5)
if e != nil {
t.Fatalf("Create media playlist failed: %s", e)
}
for i := 0; i < 5; i++ {
e = p.Append(fmt.Sprintf("test%d.ts", i), 5.0, "")
if e != nil {
t.Errorf("Add segment #%d to a media playlist failed: %s", i, e)
}
}
pid := uint32(123)
m.Append("chunklist1.m3u8", p, VariantParams{ProgramId: &pid, Bandwidth: 1500000, Resolution: "576x480"})
}
// Create new master playlist
// Add media playlist with existing query params in URI
// Append more query params and ensure it encodes correctly
func TestEncodeMasterPlaylistWithExistingQuery(t *testing.T) {
m := NewMasterPlaylist()
p, e := NewMediaPlaylist(3, 5)
if e != nil {
t.Fatalf("Create media playlist failed: %s", e)
}
for i := 0; i < 5; i++ {
e = p.Append(fmt.Sprintf("test%d.ts", i), 5.0, "")
if e != nil {
t.Errorf("Add segment #%d to a media playlist failed: %s", i, e)
}
}
pid := uint32(123)
m.Append("chunklist1.m3u8?k1=v1&k2=v2", p, VariantParams{ProgramId: &pid, Bandwidth: 1500000, Resolution: "576x480"})
m.Args = "k3=v3"
if !strings.Contains(m.String(), `chunklist1.m3u8?k1=v1&k2=v2&k3=v3`) {
t.Errorf("Encode master with existing args failed")
}
}
// Create new master playlist
// Add media playlist
// Encode structures to HLS
func TestEncodeMasterPlaylist(t *testing.T) {
m := NewMasterPlaylist()
p, e := NewMediaPlaylist(3, 5)
if e != nil {
t.Fatalf("Create media playlist failed: %s", e)
}
for i := 0; i < 5; i++ {
e = p.Append(fmt.Sprintf("test%d.ts", i), 5.0, "")
if e != nil {
t.Errorf("Add segment #%d to a media playlist failed: %s", i, e)
}
}
pid := uint32(123)
m.Append("chunklist1.m3u8", p, VariantParams{ProgramId: &pid, Bandwidth: 1500000, Resolution: "576x480"})
m.Append("chunklist2.m3u8", p, VariantParams{ProgramId: &pid, Bandwidth: 1500000, Resolution: "576x480"})
}
// Create new master playlist with Name tag in EXT-X-STREAM-INF
func TestEncodeMasterPlaylistWithStreamInfName(t *testing.T) {
m := NewMasterPlaylist()
p, e := NewMediaPlaylist(3, 5)
if e != nil {
t.Fatalf("Create media playlist failed: %s", e)
}
for i := 0; i < 5; i++ {
e = p.Append(fmt.Sprintf("test%d.ts", i), 5.0, "")
if e != nil {
t.Errorf("Add segment #%d to a media playlist failed: %s", i, e)
}
}
pid := uint32(123)
m.Append("chunklist1.m3u8", p, VariantParams{ProgramId: &pid, Bandwidth: 3000000, Resolution: "1152x960", Name: "HD 960p"})
if m.Variants[0].Name != "HD 960p" {
t.Fatalf("Create master with Name in EXT-X-STREAM-INF failed")
}
if !strings.Contains(m.String(), `NAME="HD 960p"`) {
t.Fatalf("Encode master with Name in EXT-X-STREAM-INF failed")
}
}
func TestEncodeMasterPlaylistWithCustomTags(t *testing.T) {
m := NewMasterPlaylist()
customMTag := &MockCustomTag{
name: "#CustomMTag",
encodedString: "#CustomMTag",
}
m.SetCustomTag(customMTag)
encoded := m.String()
expected := "#CustomMTag"
if !strings.Contains(encoded, expected) {
t.Fatalf("Master playlist does not contain cusomt tag: %s\n Master Playlist:\n%v", expected, encoded)
}
}
func TestMasterVersion(t *testing.T) {
m := NewMasterPlaylist()
m.ver = 5
if m.Version() != m.ver {
t.Errorf("Expected version: %v, got: %v", m.ver, m.Version())
}
}
func TestMasterSetVersion(t *testing.T) {
m := NewMasterPlaylist()
m.ver = 3
m.SetVersion(5)
if m.ver != 5 {
t.Errorf("Expected version: %v, got: %v", 5, m.ver)
}
}
/******************************
* Code generation examples *
******************************/
// Create new media playlist
// Add two segments to media playlist
// Print it
func ExampleMediaPlaylist_String() {
p, _ := NewMediaPlaylist(1, 2)
p.Append("test01.ts", 5.0, "")
p.Append("test02.ts", 6.0, "")
fmt.Printf("%s\n", p)
// Output:
// #EXTM3U
// #EXT-X-VERSION:3
// #EXT-X-MEDIA-SEQUENCE:0
// #EXT-X-TARGETDURATION:6
// #EXTINF:5.000,
// test01.ts
}
// Create new media playlist
// Add two segments to media playlist
// Print it
func ExampleMediaPlaylist_String_Winsize0() {
p, _ := NewMediaPlaylist(0, 2)
p.Append("test01.ts", 5.0, "")
p.Append("test02.ts", 6.0, "")
fmt.Printf("%s\n", p)
// Output:
// #EXTM3U
// #EXT-X-VERSION:3
// #EXT-X-MEDIA-SEQUENCE:0
// #EXT-X-TARGETDURATION:6
// #EXTINF:5.000,
// test01.ts
// #EXTINF:6.000,
// test02.ts
}
// Create new media playlist
// Add two segments to media playlist
// Print it