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reader_test.go
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reader_test.go
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/*
Playlist parsing tests.
Copyright 2013-2019 The Project Developers.
See the AUTHORS and LICENSE files at the top-level directory of this distribution
and at https://github.com/grafov/m3u8/
ॐ तारे तुत्तारे तुरे स्व
*/
package m3u8
import (
"bufio"
"bytes"
"errors"
"fmt"
"io/ioutil"
"os"
"reflect"
"testing"
"time"
)
func TestDecodeMasterPlaylist(t *testing.T) {
f, err := os.Open("sample-playlists/master.m3u8")
if err != nil {
t.Fatal(err)
}
p := NewMasterPlaylist()
err = p.DecodeFrom(bufio.NewReader(f), false)
if err != nil {
t.Fatal(err)
}
// check parsed values
if p.ver != 3 {
t.Errorf("Version of parsed playlist = %d (must = 3)", p.ver)
}
if len(p.Variants) != 5 {
t.Error("Not all variants in master playlist parsed.")
}
// TODO check other values
// fmt.Println(p.Encode().String())
}
func TestDecodeMasterPlaylistWithMultipleCodecs(t *testing.T) {
f, err := os.Open("sample-playlists/master-with-multiple-codecs.m3u8")
if err != nil {
t.Fatal(err)
}
p := NewMasterPlaylist()
err = p.DecodeFrom(bufio.NewReader(f), false)
if err != nil {
t.Fatal(err)
}
// check parsed values
if p.ver != 3 {
t.Errorf("Version of parsed playlist = %d (must = 3)", p.ver)
}
if len(p.Variants) != 5 {
t.Error("Not all variants in master playlist parsed.")
}
for _, v := range p.Variants {
if v.Codecs != "avc1.42c015,mp4a.40.2" {
t.Error("Codec string is wrong")
}
}
// TODO check other values
// fmt.Println(p.Encode().String())
}
func TestDecodeMasterPlaylistWithAlternatives(t *testing.T) {
f, err := os.Open("sample-playlists/master-with-alternatives.m3u8")
if err != nil {
t.Fatal(err)
}
p := NewMasterPlaylist()
err = p.DecodeFrom(bufio.NewReader(f), false)
if err != nil {
t.Fatal(err)
}
// check parsed values
if p.ver != 3 {
t.Errorf("Version of parsed playlist = %d (must = 3)", p.ver)
}
if len(p.Variants) != 4 {
t.Fatal("not all variants in master playlist parsed")
}
// TODO check other values
for i, v := range p.Variants {
if i == 0 && len(v.Alternatives) != 3 {
t.Fatalf("not all alternatives from #EXT-X-MEDIA parsed (has %d but should be 3", len(v.Alternatives))
}
if i == 1 && len(v.Alternatives) != 3 {
t.Fatalf("not all alternatives from #EXT-X-MEDIA parsed (has %d but should be 3", len(v.Alternatives))
}
if i == 2 && len(v.Alternatives) != 3 {
t.Fatalf("not all alternatives from #EXT-X-MEDIA parsed (has %d but should be 3", len(v.Alternatives))
}
if i == 3 && len(v.Alternatives) > 0 {
t.Fatal("should not be alternatives for this variant")
}
}
// fmt.Println(p.Encode().String())
}
func TestDecodeMasterPlaylistWithClosedCaptionEqNone(t *testing.T) {
f, err := os.Open("sample-playlists/master-with-closed-captions-eq-none.m3u8")
if err != nil {
t.Fatal(err)
}
p := NewMasterPlaylist()
err = p.DecodeFrom(bufio.NewReader(f), false)
if err != nil {
t.Fatal(err)
}
if len(p.Variants) != 3 {
t.Fatal("not all variants in master playlist parsed")
}
for _, v := range p.Variants {
if v.Captions != "NONE" {
t.Fatal("variant field for CLOSED-CAPTIONS should be equal to NONE but it equals", v.Captions)
}
}
}
// Decode a master playlist with Name tag in EXT-X-STREAM-INF
func TestDecodeMasterPlaylistWithStreamInfName(t *testing.T) {
f, err := os.Open("sample-playlists/master-with-stream-inf-name.m3u8")
if err != nil {
t.Fatal(err)
}
p := NewMasterPlaylist()
err = p.DecodeFrom(bufio.NewReader(f), false)
if err != nil {
t.Fatal(err)
}
for _, variant := range p.Variants {
if variant.Name == "" {
t.Errorf("Empty name tag on variant URI: %s", variant.URI)
}
}
}
func TestDecodeMediaPlaylistByteRange(t *testing.T) {
f, _ := os.Open("sample-playlists/media-playlist-with-byterange.m3u8")
p, _ := NewMediaPlaylist(3, 3)
_ = p.DecodeFrom(bufio.NewReader(f), true)
expected := []*MediaSegment{
{URI: "video.ts", Duration: 10, Limit: 75232, SeqId: 0},
{URI: "video.ts", Duration: 10, Limit: 82112, Offset: 752321, SeqId: 1},
{URI: "video.ts", Duration: 10, Limit: 69864, SeqId: 2},
}
for i, seg := range p.Segments {
if !reflect.DeepEqual(*seg, *expected[i]) {
t.Errorf("exp: %+v\ngot: %+v", expected[i], seg)
}
}
}
// Decode a master playlist with i-frame-stream-inf
func TestDecodeMasterPlaylistWithIFrameStreamInf(t *testing.T) {
f, err := os.Open("sample-playlists/master-with-i-frame-stream-inf.m3u8")
if err != nil {
t.Fatal(err)
}
p := NewMasterPlaylist()
err = p.DecodeFrom(bufio.NewReader(f), false)
if err != nil {
t.Fatal(err)
}
expected := map[int]*Variant{
86000: {URI: "low/iframe.m3u8", VariantParams: VariantParams{Bandwidth: 86000, ProgramId: 1, Codecs: "c1", Resolution: "1x1", Video: "1", Iframe: true}},
150000: {URI: "mid/iframe.m3u8", VariantParams: VariantParams{Bandwidth: 150000, ProgramId: 1, Codecs: "c2", Resolution: "2x2", Video: "2", Iframe: true}},
550000: {URI: "hi/iframe.m3u8", VariantParams: VariantParams{Bandwidth: 550000, ProgramId: 1, Codecs: "c2", Resolution: "2x2", Video: "2", Iframe: true}},
}
for _, variant := range p.Variants {
for k, expect := range expected {
if reflect.DeepEqual(variant, expect) {
delete(expected, k)
}
}
}
for _, expect := range expected {
t.Errorf("not found:%+v", expect)
}
}
func TestDecodeMasterPlaylistWithStreamInfAverageBandwidth(t *testing.T) {
f, err := os.Open("sample-playlists/master-with-stream-inf-1.m3u8")
if err != nil {
t.Fatal(err)
}
p := NewMasterPlaylist()
err = p.DecodeFrom(bufio.NewReader(f), false)
if err != nil {
t.Fatal(err)
}
for _, variant := range p.Variants {
if variant.AverageBandwidth == 0 {
t.Errorf("Empty average bandwidth tag on variant URI: %s", variant.URI)
}
}
}
func TestDecodeMasterPlaylistWithStreamInfFrameRate(t *testing.T) {
f, err := os.Open("sample-playlists/master-with-stream-inf-1.m3u8")
if err != nil {
t.Fatal(err)
}
p := NewMasterPlaylist()
err = p.DecodeFrom(bufio.NewReader(f), false)
if err != nil {
t.Fatal(err)
}
for _, variant := range p.Variants {
if variant.FrameRate == 0 {
t.Errorf("Empty frame rate tag on variant URI: %s", variant.URI)
}
}
}
func TestDecodeMasterPlaylistWithIndependentSegments(t *testing.T) {
f, err := os.Open("sample-playlists/master-with-independent-segments.m3u8")
if err != nil {
t.Fatal(err)
}
p := NewMasterPlaylist()
err = p.DecodeFrom(bufio.NewReader(f), false)
if err != nil {
t.Fatal(err)
}
if !p.IndependentSegments() {
t.Error("Expected independent segments to be true")
}
}
func TestDecodeMasterWithHLSV7(t *testing.T) {
f, err := os.Open("sample-playlists/master-with-hlsv7.m3u8")
if err != nil {
t.Fatal(err)
}
p := NewMasterPlaylist()
err = p.DecodeFrom(bufio.NewReader(f), false)
if err != nil {
t.Fatal(err)
}
var unexpected []*Variant
expected := map[string]VariantParams{
"sdr_720/prog_index.m3u8": {Bandwidth: 3971374, AverageBandwidth: 2778321, Codecs: "hvc1.2.4.L123.B0", Resolution: "1280x720", Captions: "NONE", VideoRange: "SDR", HDCPLevel: "NONE", FrameRate: 23.976},
"sdr_1080/prog_index.m3u8": {Bandwidth: 10022043, AverageBandwidth: 6759875, Codecs: "hvc1.2.4.L123.B0", Resolution: "1920x1080", Captions: "NONE", VideoRange: "SDR", HDCPLevel: "TYPE-0", FrameRate: 23.976},
"sdr_2160/prog_index.m3u8": {Bandwidth: 28058971, AverageBandwidth: 20985770, Codecs: "hvc1.2.4.L150.B0", Resolution: "3840x2160", Captions: "NONE", VideoRange: "SDR", HDCPLevel: "TYPE-1", FrameRate: 23.976},
"dolby_720/prog_index.m3u8": {Bandwidth: 5327059, AverageBandwidth: 3385450, Codecs: "dvh1.05.01", Resolution: "1280x720", Captions: "NONE", VideoRange: "PQ", HDCPLevel: "NONE", FrameRate: 23.976},
"dolby_1080/prog_index.m3u8": {Bandwidth: 12876596, AverageBandwidth: 7999361, Codecs: "dvh1.05.03", Resolution: "1920x1080", Captions: "NONE", VideoRange: "PQ", HDCPLevel: "TYPE-0", FrameRate: 23.976},
"dolby_2160/prog_index.m3u8": {Bandwidth: 30041698, AverageBandwidth: 24975091, Codecs: "dvh1.05.06", Resolution: "3840x2160", Captions: "NONE", VideoRange: "PQ", HDCPLevel: "TYPE-1", FrameRate: 23.976},
"hdr10_720/prog_index.m3u8": {Bandwidth: 5280654, AverageBandwidth: 3320040, Codecs: "hvc1.2.4.L123.B0", Resolution: "1280x720", Captions: "NONE", VideoRange: "PQ", HDCPLevel: "NONE", FrameRate: 23.976},
"hdr10_1080/prog_index.m3u8": {Bandwidth: 12886714, AverageBandwidth: 7964551, Codecs: "hvc1.2.4.L123.B0", Resolution: "1920x1080", Captions: "NONE", VideoRange: "PQ", HDCPLevel: "TYPE-0", FrameRate: 23.976},
"hdr10_2160/prog_index.m3u8": {Bandwidth: 29983769, AverageBandwidth: 24833402, Codecs: "hvc1.2.4.L150.B0", Resolution: "3840x2160", Captions: "NONE", VideoRange: "PQ", HDCPLevel: "TYPE-1", FrameRate: 23.976},
"sdr_720/iframe_index.m3u8": {Bandwidth: 593626, AverageBandwidth: 248586, Codecs: "hvc1.2.4.L123.B0", Resolution: "1280x720", Iframe: true, VideoRange: "SDR", HDCPLevel: "NONE"},
"sdr_1080/iframe_index.m3u8": {Bandwidth: 956552, AverageBandwidth: 399790, Codecs: "hvc1.2.4.L123.B0", Resolution: "1920x1080", Iframe: true, VideoRange: "SDR", HDCPLevel: "TYPE-0"},
"sdr_2160/iframe_index.m3u8": {Bandwidth: 1941397, AverageBandwidth: 826971, Codecs: "hvc1.2.4.L150.B0", Resolution: "3840x2160", Iframe: true, VideoRange: "SDR", HDCPLevel: "TYPE-1"},
"dolby_720/iframe_index.m3u8": {Bandwidth: 573073, AverageBandwidth: 232253, Codecs: "dvh1.05.01", Resolution: "1280x720", Iframe: true, VideoRange: "PQ", HDCPLevel: "NONE"},
"dolby_1080/iframe_index.m3u8": {Bandwidth: 905037, AverageBandwidth: 365337, Codecs: "dvh1.05.03", Resolution: "1920x1080", Iframe: true, VideoRange: "PQ", HDCPLevel: "TYPE-0"},
"dolby_2160/iframe_index.m3u8": {Bandwidth: 1893236, AverageBandwidth: 739114, Codecs: "dvh1.05.06", Resolution: "3840x2160", Iframe: true, VideoRange: "PQ", HDCPLevel: "TYPE-1"},
"hdr10_720/iframe_index.m3u8": {Bandwidth: 572673, AverageBandwidth: 232511, Codecs: "hvc1.2.4.L123.B0", Resolution: "1280x720", Iframe: true, VideoRange: "PQ", HDCPLevel: "NONE"},
"hdr10_1080/iframe_index.m3u8": {Bandwidth: 905053, AverageBandwidth: 364552, Codecs: "hvc1.2.4.L123.B0", Resolution: "1920x1080", Iframe: true, VideoRange: "PQ", HDCPLevel: "TYPE-0"},
"hdr10_2160/iframe_index.m3u8": {Bandwidth: 1895477, AverageBandwidth: 739757, Codecs: "hvc1.2.4.L150.B0", Resolution: "3840x2160", Iframe: true, VideoRange: "PQ", HDCPLevel: "TYPE-1"},
}
for _, variant := range p.Variants {
var found bool
for uri, vp := range expected {
if variant == nil || variant.URI != uri {
continue
}
if reflect.DeepEqual(variant.VariantParams, vp) {
delete(expected, uri)
found = true
}
}
if !found {
unexpected = append(unexpected, variant)
}
}
for uri, expect := range expected {
t.Errorf("not found: uri=%q %+v", uri, expect)
}
for _, unexpect := range unexpected {
t.Errorf("found but not expecting:%+v", unexpect)
}
}
func TestDecodeMasterPlaylistWithChapters(t *testing.T) {
f, err := os.Open("sample-playlists/master-adv-example-hevc.m3u8")
if err != nil {
t.Fatal(err)
}
p := NewMasterPlaylist()
err = p.DecodeFrom(bufio.NewReader(f), false)
if err != nil {
t.Fatal(err)
}
var audio []*Alternative
for _, v := range p.Variants {
for _, a := range v.Alternatives {
if a.Type == "AUDIO" {
audio = append(audio, a)
}
}
}
if len(audio) != 3 {
t.Fatalf("expected 6 audio renditions got=%d", len(audio))
}
for _, a := range audio {
var expectedChannels string
switch a.GroupId {
case "a1":
expectedChannels = "2"
case "a2", "a3":
expectedChannels = "6"
default:
t.Fatalf("unexpected audio GROUP-ID=%q", a.GroupId)
}
if a.Channels != expectedChannels {
t.Fatalf("incorrect channels attriute expected=%q got=%q GROUP-ID=%q", expectedChannels, a.Channels, a.GroupId)
}
}
}
/****************************
* Begin Test MediaPlaylist *
****************************/
func TestDecodeMediaPlaylist(t *testing.T) {
f, err := os.Open("sample-playlists/wowza-vod-chunklist.m3u8")
if err != nil {
t.Fatal(err)
}
p, err := NewMediaPlaylist(5, 798)
if err != nil {
t.Fatalf("Create media playlist failed: %s", err)
}
err = p.DecodeFrom(bufio.NewReader(f), true)
if err != nil {
t.Fatal(err)
}
//fmt.Printf("Playlist object: %+v\n", p)
// check parsed values
if p.ver != 3 {
t.Errorf("Version of parsed playlist = %d (must = 3)", p.ver)
}
if p.TargetDuration != 12 {
t.Errorf("TargetDuration of parsed playlist = %f (must = 12.0)", p.TargetDuration)
}
if !p.Closed {
t.Error("This is a closed (VOD) playlist but Close field = false")
}
titles := []string{"Title 1", "Title 2", ""}
for i, s := range p.Segments {
if i > len(titles)-1 {
break
}
if s.Title != titles[i] {
t.Errorf("Segment %v's title = %v (must = %q)", i, s.Title, titles[i])
}
}
if p.Count() != 522 {
t.Errorf("Excepted segments quantity: 522, got: %v", p.Count())
}
var seqId, idx uint
for seqId, idx = 1, 0; idx < p.Count(); seqId, idx = seqId+1, idx+1 {
if p.Segments[idx].SeqId != uint64(seqId) {
t.Errorf("Excepted SeqId for %vth segment: %v, got: %v", idx+1, seqId, p.Segments[idx].SeqId)
}
}
// TODO check other values…
//fmt.Println(p.Encode().String()), stream.Name}
}
func TestDecodeMediaPlaylistExtInfNonStrict2(t *testing.T) {
header := `#EXTM3U
#EXT-X-TARGETDURATION:10
#EXT-X-VERSION:3
#EXT-X-MEDIA-SEQUENCE:0
%s
`
tests := []struct {
strict bool
extInf string
wantError bool
wantSegment *MediaSegment
}{
// strict mode on
{true, "#EXTINF:10.000,", false, &MediaSegment{Duration: 10.0, Title: ""}},
{true, "#EXTINF:10.000,Title", false, &MediaSegment{Duration: 10.0, Title: "Title"}},
{true, "#EXTINF:10.000,Title,Track", false, &MediaSegment{Duration: 10.0, Title: "Title,Track"}},
{true, "#EXTINF:invalid,", true, nil},
{true, "#EXTINF:10.000", true, nil},
// strict mode off
{false, "#EXTINF:10.000,", false, &MediaSegment{Duration: 10.0, Title: ""}},
{false, "#EXTINF:10.000,Title", false, &MediaSegment{Duration: 10.0, Title: "Title"}},
{false, "#EXTINF:10.000,Title,Track", false, &MediaSegment{Duration: 10.0, Title: "Title,Track"}},
{false, "#EXTINF:invalid,", false, &MediaSegment{Duration: 0.0, Title: ""}},
{false, "#EXTINF:10.000", false, &MediaSegment{Duration: 10.0, Title: ""}},
}
for _, test := range tests {
p, err := NewMediaPlaylist(1, 1)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
reader := bytes.NewBufferString(fmt.Sprintf(header, test.extInf))
err = p.DecodeFrom(reader, test.strict)
if test.wantError {
if err == nil {
t.Errorf("expected error but have: %v", err)
}
continue
}
if err != nil {
t.Errorf("unexpected error: %v", err)
}
if !reflect.DeepEqual(p.Segments[0], test.wantSegment) {
t.Errorf("\nhave: %+v\nwant: %+v", p.Segments[0], test.wantSegment)
}
}
}
func TestDecodeMediaPlaylistWithWidevine(t *testing.T) {
f, err := os.Open("sample-playlists/widevine-bitrate.m3u8")
if err != nil {
t.Fatal(err)
}
p, err := NewMediaPlaylist(5, 798)
if err != nil {
t.Fatalf("Create media playlist failed: %s", err)
}
err = p.DecodeFrom(bufio.NewReader(f), true)
if err != nil {
t.Fatal(err)
}
//fmt.Printf("Playlist object: %+v\n", p)
// check parsed values
if p.ver != 2 {
t.Errorf("Version of parsed playlist = %d (must = 2)", p.ver)
}
if p.TargetDuration != 9 {
t.Errorf("TargetDuration of parsed playlist = %f (must = 9.0)", p.TargetDuration)
}
// TODO check other values…
//fmt.Printf("%+v\n", p.Key)
//fmt.Println(p.Encode().String())
}
func TestDecodeMasterPlaylistWithAutodetection(t *testing.T) {
f, err := os.Open("sample-playlists/master.m3u8")
if err != nil {
t.Fatal(err)
}
m, listType, err := DecodeFrom(bufio.NewReader(f), false)
if err != nil {
t.Fatal(err)
}
if listType != MASTER {
t.Error("Sample not recognized as master playlist.")
}
mp := m.(*MasterPlaylist)
// fmt.Printf(">%+v\n", mp)
// for _, v := range mp.Variants {
// fmt.Printf(">>%+v +v\n", v)
// }
//fmt.Println("Type below must be MasterPlaylist:")
CheckType(t, mp)
}
func TestDecodeMediaPlaylistWithAutodetection(t *testing.T) {
f, err := os.Open("sample-playlists/wowza-vod-chunklist.m3u8")
if err != nil {
t.Fatal(err)
}
p, listType, err := DecodeFrom(bufio.NewReader(f), true)
if err != nil {
t.Fatal(err)
}
pp := p.(*MediaPlaylist)
CheckType(t, pp)
if listType != MEDIA {
t.Error("Sample not recognized as media playlist.")
}
// check parsed values
if pp.TargetDuration != 12 {
t.Errorf("TargetDuration of parsed playlist = %f (must = 12.0)", pp.TargetDuration)
}
if !pp.Closed {
t.Error("This is a closed (VOD) playlist but Close field = false")
}
if pp.winsize != 0 {
t.Errorf("Media window size %v != 0", pp.winsize)
}
// TODO check other values…
// fmt.Println(pp.Encode().String())
}
// TestDecodeMediaPlaylistAutoDetectExtend tests a very large playlist auto
// extends to the appropriate size.
func TestDecodeMediaPlaylistAutoDetectExtend(t *testing.T) {
f, err := os.Open("sample-playlists/media-playlist-large.m3u8")
if err != nil {
t.Fatal(err)
}
p, listType, err := DecodeFrom(bufio.NewReader(f), true)
if err != nil {
t.Fatal(err)
}
pp := p.(*MediaPlaylist)
CheckType(t, pp)
if listType != MEDIA {
t.Error("Sample not recognized as media playlist.")
}
var exp uint = 40001
if pp.Count() != exp {
t.Errorf("Media segment count %v != %v", pp.Count(), exp)
}
}
// Test for FullTimeParse of EXT-X-PROGRAM-DATE-TIME
// We testing ISO/IEC 8601:2004 where we can get time in UTC, UTC with Nanoseconds
// timeZone in formats '±00:00', '±0000', '±00'
// m3u8.FullTimeParse()
func TestFullTimeParse(t *testing.T) {
var timestamps = []struct {
name string
value string
}{
{"time_in_utc", "2006-01-02T15:04:05Z"},
{"time_in_utc_nano", "2006-01-02T15:04:05.123456789Z"},
{"time_with_positive_zone_and_colon", "2006-01-02T15:04:05+01:00"},
{"time_with_positive_zone_no_colon", "2006-01-02T15:04:05+0100"},
{"time_with_positive_zone_2digits", "2006-01-02T15:04:05+01"},
{"time_with_negative_zone_and_colon", "2006-01-02T15:04:05-01:00"},
{"time_with_negative_zone_no_colon", "2006-01-02T15:04:05-0100"},
{"time_with_negative_zone_2digits", "2006-01-02T15:04:05-01"},
}
var err error
for _, tstamp := range timestamps {
_, err = FullTimeParse(tstamp.value)
if err != nil {
t.Errorf("FullTimeParse Error at %s [%s]: %s", tstamp.name, tstamp.value, err)
}
}
}
// Test for StrictTimeParse of EXT-X-PROGRAM-DATE-TIME
// We testing Strict format of RFC3339 where we can get time in UTC, UTC with Nanoseconds
// timeZone in formats '±00:00', '±0000', '±00'
// m3u8.StrictTimeParse()
func TestStrictTimeParse(t *testing.T) {
var timestamps = []struct {
name string
value string
}{
{"time_in_utc", "2006-01-02T15:04:05Z"},
{"time_in_utc_nano", "2006-01-02T15:04:05.123456789Z"},
{"time_with_positive_zone_and_colon", "2006-01-02T15:04:05+01:00"},
{"time_with_negative_zone_and_colon", "2006-01-02T15:04:05-01:00"},
}
var err error
for _, tstamp := range timestamps {
_, err = StrictTimeParse(tstamp.value)
if err != nil {
t.Errorf("StrictTimeParse Error at %s [%s]: %s", tstamp.name, tstamp.value, err)
}
}
}
func TestMediaPlaylistWithOATCLSSCTE35Tag(t *testing.T) {
f, err := os.Open("sample-playlists/media-playlist-with-oatcls-scte35.m3u8")
if err != nil {
t.Fatal(err)
}
p, _, err := DecodeFrom(bufio.NewReader(f), true)
if err != nil {
t.Fatal(err)
}
pp := p.(*MediaPlaylist)
expect := map[int]*SCTE{
0: {Syntax: SCTE35_OATCLS, CueType: SCTE35Cue_Start, Cue: "/DAlAAAAAAAAAP/wFAUAAAABf+/+ANgNkv4AFJlwAAEBAQAA5xULLA==", Time: 15},
1: {Syntax: SCTE35_OATCLS, CueType: SCTE35Cue_Mid, Cue: "/DAlAAAAAAAAAP/wFAUAAAABf+/+ANgNkv4AFJlwAAEBAQAA5xULLA==", Time: 15, Elapsed: 8.844},
2: {Syntax: SCTE35_OATCLS, CueType: SCTE35Cue_End},
}
for i := 0; i < int(pp.Count()); i++ {
if !reflect.DeepEqual(pp.Segments[i].SCTE, expect[i]) {
t.Errorf("OATCLS SCTE35 segment %v (uri: %v)\ngot: %#v\nexp: %#v",
i, pp.Segments[i].URI, pp.Segments[i].SCTE, expect[i],
)
}
}
}
func TestMediaPlaylistWithCueSCTE35Tag(t *testing.T) {
f, err := ioutil.ReadFile("sample-playlists/media-playlist-with-cue-scte35.m3u8")
if err != nil {
t.Fatal(err)
}
p, _, err := DecodeFrom(bytes.NewReader(f), true)
if err != nil {
t.Fatal(err)
}
pp := p.(*MediaPlaylist)
expect := map[int]*SCTE{
2: {Syntax: SCTE35_CUE, CueType: SCTE35Cue_Start, Time: 18},
3: {Syntax: SCTE35_CUE, CueType: SCTE35Cue_Mid, Time: 6.0, Elapsed: 6.0},
4: {Syntax: SCTE35_CUE, CueType: SCTE35Cue_Mid, Time: 6.0, Elapsed: 12.0},
5: {Syntax: SCTE35_CUE, CueType: SCTE35Cue_End},
}
for i := 0; i < int(pp.Count()); i++ {
if !reflect.DeepEqual(pp.Segments[i].SCTE, expect[i]) {
t.Errorf("CUE SCTE35 segment %v (uri: %v)\ngot: %#v\nexp: %#v",
i, pp.Segments[i].URI, pp.Segments[i].SCTE, expect[i],
)
}
}
}
func TestDecodeMediaPlaylistWithDiscontinuitySeq(t *testing.T) {
f, err := os.Open("sample-playlists/media-playlist-with-discontinuity-seq.m3u8")
if err != nil {
t.Fatal(err)
}
p, listType, err := DecodeFrom(bufio.NewReader(f), true)
if err != nil {
t.Fatal(err)
}
pp := p.(*MediaPlaylist)
CheckType(t, pp)
if listType != MEDIA {
t.Error("Sample not recognized as media playlist.")
}
if pp.DiscontinuitySeq == 0 {
t.Error("Empty discontinuity sequenece tag")
}
if pp.Count() != 4 {
t.Errorf("Excepted segments quantity: 4, got: %v", pp.Count())
}
if pp.SeqNo != 0 {
t.Errorf("Excepted SeqNo: 0, got: %v", pp.SeqNo)
}
var seqId, idx uint
for seqId, idx = 0, 0; idx < pp.Count(); seqId, idx = seqId+1, idx+1 {
if pp.Segments[idx].SeqId != uint64(seqId) {
t.Errorf("Excepted SeqId for %vth segment: %v, got: %v", idx+1, seqId, pp.Segments[idx].SeqId)
}
}
}
func TestDecodeMasterPlaylistWithCustomTags(t *testing.T) {
cases := []struct {
src string
customDecoders []CustomDecoder
expectedError error
expectedPlaylistTags []string
}{
{
src: "sample-playlists/master-playlist-with-custom-tags.m3u8",
customDecoders: nil,
expectedError: nil,
expectedPlaylistTags: nil,
},
{
src: "sample-playlists/master-playlist-with-custom-tags.m3u8",
customDecoders: []CustomDecoder{
&MockCustomTag{
name: "#CUSTOM-PLAYLIST-TAG:",
err: errors.New("Error decoding tag"),
segment: false,
encodedString: "#CUSTOM-PLAYLIST-TAG:42",
},
},
expectedError: errors.New("Error decoding tag"),
expectedPlaylistTags: nil,
},
{
src: "sample-playlists/master-playlist-with-custom-tags.m3u8",
customDecoders: []CustomDecoder{
&MockCustomTag{
name: "#CUSTOM-PLAYLIST-TAG:",
err: nil,
segment: false,
encodedString: "#CUSTOM-PLAYLIST-TAG:42",
},
},
expectedError: nil,
expectedPlaylistTags: []string{
"#CUSTOM-PLAYLIST-TAG:",
},
},
}
for _, testCase := range cases {
f, err := os.Open(testCase.src)
if err != nil {
t.Fatal(err)
}
p, listType, err := DecodeWith(bufio.NewReader(f), true, testCase.customDecoders)
if !reflect.DeepEqual(err, testCase.expectedError) {
t.Fatal(err)
}
if testCase.expectedError != nil {
// No need to make other assertions if we were expecting an error
continue
}
pp := p.(*MasterPlaylist)
CheckType(t, pp)
if listType != MASTER {
t.Error("Sample not recognized as master playlist.")
}
if len(pp.Custom) != len(testCase.expectedPlaylistTags) {
t.Errorf("Did not parse expected number of custom tags. Got: %d Expected: %d", len(pp.Custom), len(testCase.expectedPlaylistTags))
} else {
// we have the same count, lets confirm its the right tags
for _, expectedTag := range testCase.expectedPlaylistTags {
if _, ok := pp.Custom[expectedTag]; !ok {
t.Errorf("Did not parse custom tag %s", expectedTag)
}
}
}
}
}
func TestDecodeMediaPlaylistWithCustomTags(t *testing.T) {
cases := []struct {
src string
customDecoders []CustomDecoder
expectedError error
expectedPlaylistTags []string
expectedSegmentTags []*struct {
index int
names []string
}
}{
{
src: "sample-playlists/media-playlist-with-custom-tags.m3u8",
customDecoders: nil,
expectedError: nil,
expectedPlaylistTags: nil,
expectedSegmentTags: nil,
},
{
src: "sample-playlists/media-playlist-with-custom-tags.m3u8",
customDecoders: []CustomDecoder{
&MockCustomTag{
name: "#CUSTOM-PLAYLIST-TAG:",
err: errors.New("Error decoding tag"),
segment: false,
encodedString: "#CUSTOM-PLAYLIST-TAG:42",
},
},
expectedError: errors.New("Error decoding tag"),
expectedPlaylistTags: nil,
expectedSegmentTags: nil,
},
{
src: "sample-playlists/media-playlist-with-custom-tags.m3u8",
customDecoders: []CustomDecoder{
&MockCustomTag{
name: "#CUSTOM-PLAYLIST-TAG:",
err: nil,
segment: false,
encodedString: "#CUSTOM-PLAYLIST-TAG:42",
},
&MockCustomTag{
name: "#CUSTOM-SEGMENT-TAG:",
err: nil,
segment: true,
encodedString: "#CUSTOM-SEGMENT-TAG:NAME=\"Yoda\",JEDI=YES",
},
&MockCustomTag{
name: "#CUSTOM-SEGMENT-TAG-B",
err: nil,
segment: true,
encodedString: "#CUSTOM-SEGMENT-TAG-B",
},
},
expectedError: nil,
expectedPlaylistTags: []string{
"#CUSTOM-PLAYLIST-TAG:",
},
expectedSegmentTags: []*struct {
index int
names []string
}{
{1, []string{"#CUSTOM-SEGMENT-TAG:"}},
{2, []string{"#CUSTOM-SEGMENT-TAG:", "#CUSTOM-SEGMENT-TAG-B"}},
},
},
}
for _, testCase := range cases {
f, err := os.Open(testCase.src)
if err != nil {
t.Fatal(err)
}
p, listType, err := DecodeWith(bufio.NewReader(f), true, testCase.customDecoders)
if !reflect.DeepEqual(err, testCase.expectedError) {
t.Fatal(err)
}
if testCase.expectedError != nil {
// No need to make other assertions if we were expecting an error
continue
}
pp := p.(*MediaPlaylist)
CheckType(t, pp)
if listType != MEDIA {
t.Error("Sample not recognized as master playlist.")
}
if len(pp.Custom) != len(testCase.expectedPlaylistTags) {
t.Errorf("Did not parse expected number of custom tags. Got: %d Expected: %d", len(pp.Custom), len(testCase.expectedPlaylistTags))
} else {
// we have the same count, lets confirm its the right tags
for _, expectedTag := range testCase.expectedPlaylistTags {
if _, ok := pp.Custom[expectedTag]; !ok {
t.Errorf("Did not parse custom tag %s", expectedTag)
}
}
}
var expectedSegmentTag *struct {
index int
names []string
}
expectedIndex := 0
for i := 0; i < int(pp.Count()); i++ {
seg := pp.Segments[i]
if expectedIndex != len(testCase.expectedSegmentTags) {
expectedSegmentTag = testCase.expectedSegmentTags[expectedIndex]
} else {
// we are at the end of the expectedSegmentTags list, the rest of the segments
// should have no custom tags
expectedSegmentTag = nil
}
if expectedSegmentTag == nil || expectedSegmentTag.index != i {
if len(seg.Custom) != 0 {
t.Errorf("Did not parse expected number of custom tags on Segment %d. Got: %d Expected: %d", i, len(seg.Custom), 0)
}
continue
}
// We are now checking the segment corresponding to exepectedSegmentTag
// increase our expectedIndex for next iteration
expectedIndex++
if len(expectedSegmentTag.names) != len(seg.Custom) {
t.Errorf("Did not parse expected number of custom tags on Segment %d. Got: %d Expected: %d", i, len(seg.Custom), len(expectedSegmentTag.names))
} else {
// we have the same count, lets confirm its the right tags
for _, expectedTag := range expectedSegmentTag.names {
if _, ok := seg.Custom[expectedTag]; !ok {
t.Errorf("Did not parse customTag %s on Segment %d", expectedTag, i)
}
}
}
}
if expectedIndex != len(testCase.expectedSegmentTags) {
t.Errorf("Did not parse custom tags on all expected segments. Parsed Segments: %d Expected: %d", expectedIndex, len(testCase.expectedSegmentTags))
}
}
}
/***************************
* Code parsing examples *
***************************/
// Example of parsing a playlist with EXT-X-DISCONTINIUTY tag
// and output it with integer segment durations.
func ExampleMediaPlaylist_DurationAsInt() {
f, _ := os.Open("sample-playlists/media-playlist-with-discontinuity.m3u8")
p, _, _ := DecodeFrom(bufio.NewReader(f), true)
pp := p.(*MediaPlaylist)
pp.DurationAsInt(true)
fmt.Printf("%s", pp)
// Output:
// #EXTM3U
// #EXT-X-VERSION:3
// #EXT-X-MEDIA-SEQUENCE:0
// #EXT-X-TARGETDURATION:10
// #EXTINF:10,
// ad0.ts
// #EXTINF:8,
// ad1.ts
// #EXT-X-DISCONTINUITY
// #EXTINF:10,
// movieA.ts
// #EXTINF:10,
// movieB.ts
}
func TestMediaPlaylistWithSCTE35Tag(t *testing.T) {
cases := []struct {
playlistLocation string
expectedSCTEIndex int
expectedSCTECue string
expectedSCTEID string
expectedSCTETime float64
}{
{
"sample-playlists/media-playlist-with-scte35.m3u8",
2,
"/DAIAAAAAAAAAAAQAAZ/I0VniQAQAgBDVUVJQAAAAH+cAAAAAA==",
"123",
123.12,
},
{
"sample-playlists/media-playlist-with-scte35-1.m3u8",
1,
"/DAIAAAAAAAAAAAQAAZ/I0VniQAQAgBDVUVJQAA",
"",
0,
},
}
for _, c := range cases {
f, _ := os.Open(c.playlistLocation)
playlist, _, _ := DecodeFrom(bufio.NewReader(f), true)
mediaPlaylist := playlist.(*MediaPlaylist)
for index, item := range mediaPlaylist.Segments {
if item == nil {
break
}
if index != c.expectedSCTEIndex && item.SCTE != nil {
t.Error("Not expecting SCTE information on this segment")
} else if index == c.expectedSCTEIndex && item.SCTE == nil {
t.Error("Expecting SCTE information on this segment")
} else if index == c.expectedSCTEIndex && item.SCTE != nil {
if (*item.SCTE).Cue != c.expectedSCTECue {
t.Error("Expected ", c.expectedSCTECue, " got ", (*item.SCTE).Cue)
} else if (*item.SCTE).ID != c.expectedSCTEID {
t.Error("Expected ", c.expectedSCTEID, " got ", (*item.SCTE).ID)
} else if (*item.SCTE).Time != c.expectedSCTETime {
t.Error("Expected ", c.expectedSCTETime, " got ", (*item.SCTE).Time)
}
}
}
}
}
func TestDecodeMediaPlaylistWithProgramDateTime(t *testing.T) {
f, err := os.Open("sample-playlists/media-playlist-with-program-date-time.m3u8")
if err != nil {
t.Fatal(err)
}
p, listType, err := DecodeFrom(bufio.NewReader(f), true)
if err != nil {
t.Fatal(err)
}
pp := p.(*MediaPlaylist)
CheckType(t, pp)
if listType != MEDIA {
t.Error("Sample not recognized as media playlist.")
}
// check parsed values
if pp.TargetDuration != 15 {
t.Errorf("TargetDuration of parsed playlist = %f (must = 15.0)", pp.TargetDuration)
}
if !pp.Closed {
t.Error("VOD sample media playlist, closed should be true.")
}
if pp.SeqNo != 0 {
t.Error("Media sequence defined in sample playlist is 0")
}
segNames := []string{"20181231/0555e0c371ea801726b92512c331399d_00000000.ts",
"20181231/0555e0c371ea801726b92512c331399d_00000001.ts",
"20181231/0555e0c371ea801726b92512c331399d_00000002.ts",