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Info.go
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package main
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"io"
"math"
"net/http"
"net/url"
"os"
"strconv"
"strings"
"sync"
"time"
"github.com/dannav/hhmmss"
"github.com/xhit/go-str2duration/v2"
)
const (
DtypeAudio = "audio"
DtypeVideo = "video"
AudioItag = 140
AudioOnlyQuality = 0
BufferSize = 8192
DefaultFilenameFormat = "%(title)s-%(id)s"
// 5 days in seconds
LiveMaximumSeekable = 432000
)
type VideoItag struct {
H264 int
VP9 int
}
// https://gist.github.com/AgentOak/34d47c65b1d28829bb17c24c04a0096f
var (
FilenameFormatBlacklist = []string{
"description",
}
VideoLabelItags = map[string]VideoItag{
"audio_only": {H264: 0, VP9: 0},
"144p": {H264: 160, VP9: 278},
"240p": {H264: 133, VP9: 242},
"360p": {H264: 134, VP9: 243},
"480p": {H264: 135, VP9: 244},
"720p": {H264: 136, VP9: 247},
"720p60": {H264: 298, VP9: 302},
"1080p": {H264: 137, VP9: 248},
"1080p60": {H264: 299, VP9: 303},
"1440p": {H264: 264, VP9: 271},
"1440p60": {H264: 304, VP9: 308},
"2160p": {H264: 266, VP9: 313},
"2160p60": {H264: 305, VP9: 315},
}
VideoQualities = []string{
"audio_only",
"144p",
"240p",
"360p",
"480p",
"720p",
"720p60",
"1080p",
"1080p60",
"1440p",
"1440p60",
"2160p",
"2160p60",
}
)
/*
Simple class to more easily keep track of what fields are available for
file name formatting
*/
type FormatInfo map[string]string
/*
Metadata for the final file
*/
type MetaInfo map[string]string
/*
Info to be sent through the progress queue
*/
type ProgressInfo struct {
Itag int
ByteCount int
MaxSeq int
StartFrag int
}
/*
Fragment information/data
*/
type Fragment struct {
Seq int
FileName string
XHeadSeqNum int
Data *bytes.Buffer
Slow bool
MimeType string
}
type seqChanInfo struct {
CurSequence int
MaxSequence int
}
/*
For sharing state between some functions used for downloading threads
*/
type fragThreadState struct {
Name string
BaseFilePath string
DataType string
SeqNum int
MaxSeq int
Tries int
FullRetries int
Is403 bool
ToFile bool
SleepTime time.Duration
}
type MediaDLInfo struct {
sync.RWMutex
ActiveJobs int
DownloadURL string
BasePath string
DataType string
Finished bool
URLHost string
}
/*
State for resumable downloading
*/
type DownloadState struct {
StartFrag int
Fragments int
Size int64
TempDir string
File string `json:"-"`
}
/*
Miscellaneous information
*/
type DownloadInfo struct {
sync.RWMutex
FormatInfo FormatInfo
Metadata MetaInfo
CookiesURL *url.URL
Ytcfg *YTCFG
PoToken string
Stopping bool
InProgress bool
Live bool
VP9 bool
H264 bool
Unavailable bool
GVideoDDL bool
FragFiles bool
LiveURL bool
AudioOnly bool
VideoOnly bool
MembersOnly bool
InfoPrinted bool
DisableSaveState bool
LiveFromVal string
LiveFromSq int
Thumbnail string
VideoID string
URL string
SelectedQuality string
Status string
CaptureDurationSecs int
StartDelaySecs int
FragMaxTries uint
Wait int
Quality int
RetrySecs int
Jobs int
TargetDuration int
LastSq int
LastUpdated time.Time
MDLInfo map[string]*MediaDLInfo
DLState map[int]*DownloadState
FileMode os.FileMode
DirMode os.FileMode
}
func NewDownloadInfo() *DownloadInfo {
return &DownloadInfo{
FragFiles: true,
Wait: ActionAsk,
Quality: -1,
Jobs: 1,
TargetDuration: 5,
FormatInfo: NewFormatInfo(),
Metadata: NewMetaInfo(),
MDLInfo: map[string]*MediaDLInfo{
DtypeVideo: {},
DtypeAudio: {},
},
DLState: make(map[int]*DownloadState),
}
}
func NewFragThreadState(name, baseFPath, dataType string, toFile bool, sleepTime time.Duration) *fragThreadState {
return &fragThreadState{
Name: name,
BaseFilePath: baseFPath,
DataType: dataType,
ToFile: toFile,
SleepTime: sleepTime,
}
}
func NewFormatInfo() FormatInfo {
return FormatInfo{
"id": "",
"title": "",
"channel_id": "",
"channel": "",
"upload_date": "",
"start_date": "",
"publish_date": "",
"description": "",
"url": "",
}
}
func NewMetaInfo() MetaInfo {
return MetaInfo{
"title": "%(title)s",
"artist": "%(channel)s",
"date": "%(upload_date)s",
"comment": "%(url)s\n\n%(description)s",
}
}
func (di *DownloadInfo) IsStopping() bool {
di.RLock()
defer di.RUnlock()
return di.Stopping
}
func (di *DownloadInfo) Stop() {
di.Lock()
defer di.Unlock()
di.Stopping = true
di.SetFinished(DtypeAudio)
di.SetFinished(DtypeVideo)
}
func (di *DownloadInfo) IsLive() bool {
di.RLock()
defer di.RUnlock()
return di.Live
}
func (di *DownloadInfo) IsUnavailable() bool {
di.RLock()
defer di.RUnlock()
return di.Unavailable
}
func (di *DownloadInfo) IsGVideoDDL() bool {
di.RLock()
defer di.RUnlock()
return di.GVideoDDL
}
func (di *DownloadInfo) GetActiveJobCount(dataType string) int {
di.MDLInfo[dataType].RLock()
defer di.MDLInfo[dataType].RUnlock()
return di.MDLInfo[dataType].ActiveJobs
}
func (di *DownloadInfo) IncrementJobs(dataType string) {
di.MDLInfo[dataType].Lock()
defer di.MDLInfo[dataType].Unlock()
di.MDLInfo[dataType].ActiveJobs += 1
}
func (di *DownloadInfo) DecrementJobs(dataType string) {
di.MDLInfo[dataType].Lock()
defer di.MDLInfo[dataType].Unlock()
di.MDLInfo[dataType].ActiveJobs -= 1
}
func (di *DownloadInfo) GetDownloadUrl(dataType string) string {
di.MDLInfo[dataType].RLock()
defer di.MDLInfo[dataType].RUnlock()
return di.MDLInfo[dataType].DownloadURL
}
func (di *DownloadInfo) SetDownloadUrl(dataType, dlURL string) {
di.MDLInfo[dataType].Lock()
defer di.MDLInfo[dataType].Unlock()
purl, err := url.Parse(dlURL)
if err == nil {
di.MDLInfo[dataType].URLHost = purl.Host
}
di.MDLInfo[dataType].DownloadURL = dlURL
}
func (di *DownloadInfo) GetDownloadUrlHost(dataType string) string {
di.MDLInfo[dataType].RLock()
defer di.MDLInfo[dataType].RUnlock()
return di.MDLInfo[dataType].URLHost
}
func (di *DownloadInfo) GetBaseFilePath(dataType string) string {
di.MDLInfo[dataType].RLock()
defer di.MDLInfo[dataType].RUnlock()
return di.MDLInfo[dataType].BasePath
}
func (di *DownloadInfo) SetBaseFilePath(dataType, fpath string) {
di.MDLInfo[dataType].Lock()
defer di.MDLInfo[dataType].Unlock()
di.MDLInfo[dataType].BasePath = fpath
}
func (di *DownloadInfo) SetFinished(dataType string) {
di.MDLInfo[dataType].Lock()
defer di.MDLInfo[dataType].Unlock()
di.MDLInfo[dataType].Finished = true
}
func (di *DownloadInfo) IsFinished(dataType string) bool {
di.MDLInfo[dataType].RLock()
defer di.MDLInfo[dataType].RUnlock()
return di.MDLInfo[dataType].Finished
}
func (di *DownloadInfo) GetTimeSinceUpdated() time.Duration {
di.RLock()
defer di.RUnlock()
return time.Since(di.LastUpdated)
}
func (fi FormatInfo) SetInfo(player_response *PlayerResponse) {
pmfr := player_response.Microformat.PlayerMicroformatRenderer
vid := player_response.VideoDetails.VideoID
startDate := strings.ReplaceAll(pmfr.LiveBroadcastDetails.StartTimestamp, "-", "")
publishDate := strings.ReplaceAll(pmfr.PublishDate, "-", "")
url := fmt.Sprintf("https://www.youtube.com/watch?v=%s", vid)
if len(startDate) > 0 {
startDate = startDate[:8]
}
fi["id"] = vid
fi["url"] = url
fi["title"] = strings.TrimSpace(player_response.VideoDetails.Title)
fi["channel_id"] = player_response.VideoDetails.ChannelID
fi["channel"] = player_response.VideoDetails.Author
fi["upload_date"] = startDate
fi["start_date"] = startDate
fi["publish_date"] = publishDate
fi["description"] = strings.TrimSpace(player_response.VideoDetails.ShortDescription)
}
func (mi MetaInfo) SetInfo(fi FormatInfo) {
for k, v := range mi {
val, err := FormatPythonMapString(v, fi)
if err != nil {
// ignore and just leave unformatted
continue
}
mi[k] = val
}
}
func (di *DownloadInfo) printChannelAndTitle(pr *PlayerResponse) {
if di.InfoPrinted {
return
}
if len(pr.VideoDetails.Title) == 0 || len(pr.VideoDetails.Author) == 0 {
return
}
LogGeneral("Channel: %s\n", pr.VideoDetails.Author)
LogGeneral("Video Title: %s\n", pr.VideoDetails.Title)
di.InfoPrinted = true
}
func (di *DownloadInfo) printStatusWithoutLock() {
if loglevel >= LoglevelError {
fmt.Print(di.Status)
}
}
func (di *DownloadInfo) SetStatus(status string) {
di.Lock()
defer di.Unlock()
di.Status = status
di.printStatusWithoutLock()
}
func (di *DownloadInfo) PrintStatus() {
di.RLock()
defer di.RUnlock()
di.printStatusWithoutLock()
}
func (di *DownloadInfo) SaveState(itag int) {
if di.DisableSaveState || len(di.DLState[itag].File) == 0 {
return
}
data, err := json.Marshal(di.DLState[itag])
if err != nil {
LogWarn("Error when saving state: %s", err)
return
}
err = os.WriteFile(di.DLState[itag].File, data, di.FileMode)
if err != nil {
LogWarn("Error when saving state: %s", err)
return
}
}
// Ask if the user wants to wait for a scheduled stream to start and then record it
func (di *DownloadInfo) AskWaitForStream() bool {
LogGeneral("%s\n%s\n",
fmt.Sprintf("%s is likely a future scheduled livestream.", di.URL),
"Would you like to wait for the scheduled start time, poll until it starts, or not wait?",
)
choice := strings.ToLower(GetUserInput("wait/poll/[no]: "))
if strings.HasPrefix(choice, "wait") {
return true
} else if strings.HasPrefix(choice, "poll") {
secs := GetUserInput("Input poll interval in seconds (minimum 15): ")
s, err := strconv.Atoi(secs)
if err != nil || s < DefaultPollTime {
s = DefaultPollTime
}
di.RetrySecs = s
return true
}
return false
}
func (di *DownloadInfo) GetGvideoUrl(dataType string) {
for {
gvUrl := GetUserInput(fmt.Sprintf("Please enter the %s url, or nothing to skip: ", dataType))
if len(gvUrl) == 0 {
return
}
newUrl, itag := ParseGvideoUrl(gvUrl, dataType)
if len(newUrl) == 0 {
continue
}
if dataType == DtypeVideo {
di.Quality = itag
}
if (dataType == DtypeAudio && itag == AudioItag) ||
(dataType == DtypeVideo && itag != AudioItag) {
di.SetDownloadUrl(dataType, newUrl)
break
} else {
LogGeneral("URL given does not appear to be appropriate for the data type needed.")
}
}
}
func (di *DownloadInfo) ParseLiveFromStrVal() error {
if di.LiveFromVal == "" {
return nil
}
if strings.ToLower(di.LiveFromVal) == "now" {
// --live-from now
// Seek to current sequence number
di.LiveFromSq = di.LastSq
LogGeneral("Starting download from current time")
} else {
durationVal := strings.TrimPrefix(di.LiveFromVal, "-") // Removes negative symbol from start of duration string
// Try to parse the value as a duration string
duration, err := str2duration.ParseDuration(durationVal)
if err != nil {
// Try to parse the value as a HH:MM:SS string
duration, err = hhmmss.Parse(durationVal)
if err != nil {
LogError("Unable to parse value as either a duration or a time string: %v", err)
return err
}
}
secondsTotal := duration.Seconds()
fragDur := float64(di.TargetDuration)
secondsRoundedToFragLength := int(math.Ceil(secondsTotal/fragDur) * fragDur) // Rounds up to next frag interval time
noOfFragsToJump := secondsRoundedToFragLength / di.TargetDuration
if strings.HasPrefix(di.LiveFromVal, "-") {
// --live-from negative value
// Seek to a sequence number in the past
// Invalid time specification (too short or too long)
if secondsTotal < 0 || secondsTotal > LiveMaximumSeekable {
LogError("Invalid duration specified '%s'. (Maximum video seek time is %d days)", di.LiveFromVal, (LiveMaximumSeekable / 60 / 60 / 24))
return errors.New("invalid duration specified")
}
// If the stream hasn't been live long enough for the specified duration
if noOfFragsToJump > di.LastSq {
streamLength := di.LastSq * di.TargetDuration
curStreamDuration := SecondsToDurationAndTimeStr(streamLength)
LogError("Invalid duration specified. The stream has not been live for that long [Live for %s].", curStreamDuration)
return errors.New("invalid duration specified")
}
di.LiveFromSq = di.LastSq - noOfFragsToJump
LogGeneral("Jumping back %d seconds from now, and starting to download from that time.", secondsRoundedToFragLength)
LogDebug("Jumping back %d frags. Will start from sequence %d [current is %d].", noOfFragsToJump, di.LiveFromSq, di.LastSq)
} else {
// --live-from positive value
// Calculate the sequence number of the specified stream time to start from.
maxSq := di.LastSq
targetStartFrag := noOfFragsToJump
// Stream hasn't been live long enough
if di.LastSq < targetStartFrag {
streamLength := di.LastSq * di.TargetDuration
curStreamDuration := SecondsToDurationAndTimeStr(streamLength)
errStr := fmt.Errorf("invalid duration specified. the stream has not been live for that long [live for %s]", curStreamDuration)
return errors.New(errStr.Error())
} else {
// Make sure the Start Frag is within the 5 day limit.
if targetStartFrag < (di.LastSq - LiveMaximumSeekable) {
LogError("YT only retains the livestream 5 days past for seeking, your --live-from value of '%s' is not valid.", di.LiveFromVal)
// Calculate how long the stream has been live for
streamLiveTime := di.LastSq * di.TargetDuration
minSeekTime := streamLiveTime - LiveMaximumSeekable
LogError("You must specify a --live-from value between: %s and %s", SecondsToDurationAndTimeStr(minSeekTime), SecondsToDurationAndTimeStr(streamLiveTime))
return errors.New("value is not valid for stream duration")
}
di.LiveFromSq = targetStartFrag
startTimeStr := SecondsToDurationAndTimeStr(di.LiveFromSq * di.TargetDuration)
totalTimeToGrabStr := SecondsToDurationAndTimeStr((maxSq - di.LiveFromSq) * di.TargetDuration)
LogGeneral("Starting from stream time '%s' and grabbing '%s' of content (and counting).", startTimeStr, totalTimeToGrabStr)
LogDebug("Starting from sequence %d [max right now is %d]", di.LiveFromSq, maxSq)
}
}
}
return nil
}
func (di *DownloadInfo) ParseInputUrl() error {
parsedUrl, err := url.Parse(di.URL)
if err != nil {
return err
}
lowerHost := strings.ToLower(parsedUrl.Host)
lowerHost = strings.TrimPrefix(lowerHost, "www.")
lowerHost = strings.TrimPrefix(lowerHost, "m.")
lowerPath := strings.ToLower(parsedUrl.EscapedPath())
parsedQuery := parsedUrl.Query()
if lowerHost == "youtube.com" {
if strings.HasPrefix(lowerPath, "/watch") {
if _, ok := parsedQuery["v"]; !ok {
return errors.New("youtube URL missing video ID")
}
di.VideoID = parsedQuery.Get("v")
return nil
} else if strings.HasPrefix(lowerPath, "/channel/") ||
strings.HasPrefix(lowerPath, "/c/") ||
strings.HasPrefix(lowerPath, "/user/") ||
strings.HasPrefix(lowerPath, "/@") {
// The URL can be polled and the stream can change depending on what
// the channel schedules. Useful for set-and-forget
chanSlashIdx := strings.Index(lowerPath[1:], "/") + 1
noChanPath := lowerPath[chanSlashIdx:]
// Check if we were given the channel url on a sub page
// Remove that part from the URL so we can append /live to it after
if strings.LastIndex(noChanPath, "/") > 0 {
lastSlash := strings.LastIndex(di.URL, "/")
di.URL = di.URL[:lastSlash]
}
di.URL = fmt.Sprintf("%s/live", di.URL)
di.LiveURL = true
return nil
} else if strings.HasPrefix(lowerPath, "/live/") {
di.VideoID = strings.TrimPrefix(parsedUrl.EscapedPath(), "/live/")
return nil
} else if strings.HasPrefix(lowerPath, "/shorts/") {
di.VideoID = strings.TrimPrefix(parsedUrl.EscapedPath(), "/shorts/")
return nil
}
} else if lowerHost == "youtu.be" {
di.VideoID = strings.TrimLeft(parsedUrl.EscapedPath(), "/")
return nil
} else if strings.HasSuffix(lowerHost, ".googlevideo.com") {
if _, ok := parsedQuery["noclen"]; !ok {
return errors.New("given Google Video URL is not for a fragmented stream")
}
di.GVideoDDL = true
id := parsedQuery.Get("id")
dotIdx := strings.LastIndex(id, ".")
id = id[:dotIdx]
di.VideoID = id
di.FormatInfo["id"] = di.VideoID
sqIdx := strings.Index(di.URL, "&sq=")
itag, err := strconv.Atoi(parsedQuery.Get("itag"))
if err != nil {
return fmt.Errorf("error parsing itag parameter of Google Video URL: %s", err)
}
if sqIdx < 0 {
return errors.New("could not find 'sq' parameter in given Google Video URL")
}
if itag == AudioItag {
if len(di.GetDownloadUrl(DtypeAudio)) == 0 {
di.SetDownloadUrl(DtypeAudio, di.URL[:sqIdx]+"&sq=%d")
}
if len(di.GetDownloadUrl(DtypeVideo)) == 0 && !di.AudioOnly {
di.GetGvideoUrl(DtypeVideo)
}
} else {
if len(di.GetDownloadUrl(DtypeVideo)) == 0 {
di.SetDownloadUrl(DtypeVideo, di.URL[:sqIdx]+"&sq=%d")
}
if len(di.GetDownloadUrl(DtypeAudio)) == 0 && !di.VideoOnly {
di.GetGvideoUrl(DtypeAudio)
}
}
di.Quality = itag
return nil
}
return fmt.Errorf("%s is not a known valid youtube URL", di.URL)
}
/*
Get download URLs either from the DASH manifest or from the adaptiveFormats.
Prioritize DASH manifest if it is available.
Attempts to grab from the Web API player response as well as desktop,
favouring Web API. Any formats not found in the Web API are looked for in the
desktop player response.
*/
func (di *DownloadInfo) GetDownloadUrls(pr *PlayerResponse) map[int]string {
urls := make(map[int]string)
WebPlayerResponse, err := di.DownloadWebPlayerResponse()
if err != nil {
LogDebug("Error getting Web API player response: %s", err.Error())
} else {
if len(WebPlayerResponse.StreamingData.DashManifestURL) > 0 {
LogDebug("Retrieving URLs from Web API DASH manifest")
manifest := DownloadData(WebPlayerResponse.StreamingData.DashManifestURL)
if len(manifest) > 0 {
// we store the LastSq to calculate 5 days past
urls, di.LastSq = GetUrlsFromManifest(manifest, di.PoToken)
}
for itag := range urls {
LogTrace("Setting itag %d from Web API DASH manifest", itag)
}
}
if len(WebPlayerResponse.StreamingData.AdaptiveFormats) > 0 {
LogDebug("Retrieving URLs from Web API adaptive formats")
for _, fmt := range WebPlayerResponse.StreamingData.AdaptiveFormats {
if len(fmt.URL) == 0 {
continue
}
if _, ok := urls[fmt.Itag]; ok { // format exists already
continue
}
urls[fmt.Itag] = strings.ReplaceAll(fmt.URL, "%", "%%") + "&sq=%d"
LogTrace("Setting itag %d from Web API adaptive formats", fmt.Itag)
}
}
}
if len(pr.StreamingData.DashManifestURL) > 0 {
LogDebug("Retrieving URLs from web DASH manifest")
manifest := DownloadData(pr.StreamingData.DashManifestURL)
if len(manifest) > 0 {
// we store the LastSq to calculate 5 days past
dashUrls, lastSq := GetUrlsFromManifest(manifest, di.PoToken)
if lastSq > di.LastSq {
di.LastSq = lastSq
}
for itag, url := range dashUrls {
if _, ok := urls[itag]; ok { // format exists already
continue
}
urls[itag] = url
LogTrace("Setting itag %d from web adaptive formats", itag)
}
}
}
if len(pr.StreamingData.AdaptiveFormats) > 0 {
LogDebug("Retrieving URLs from web adaptive formats")
for _, fmt := range pr.StreamingData.AdaptiveFormats {
if len(fmt.URL) == 0 {
continue
}
if _, ok := urls[fmt.Itag]; ok { // format exists already
continue
}
urls[fmt.Itag] = strings.ReplaceAll(fmt.URL, "%", "%%") + "&sq=%d"
LogTrace("Setting itag %d from web adaptive formats", fmt.Itag)
}
}
return urls
}
func (di *DownloadInfo) ParseCaptureDurationStrVal(durationVal string) error {
if durationVal == "" {
return nil
}
// Try to parse the value as a duration string
duration, err := str2duration.ParseDuration(durationVal)
if err != nil {
// Try to parse the value as a HH:MM:SS string
duration, err = hhmmss.Parse(durationVal)
if err != nil {
LogError("Unable to parse value as either a Duration or a Time String: %v", err)
return errors.New("invalid duration string")
}
}
di.CaptureDurationSecs = int(duration.Seconds())
return nil
}
func (di *DownloadInfo) ParseStartDelayStrVal(durationVal string) error {
if durationVal == "" {
return nil
}
// Try to parse the value as a duration string
duration, err := str2duration.ParseDuration(durationVal)
if err != nil {
// Try to parse the value as a HH:MM:SS string
duration, err = hhmmss.Parse(durationVal)
if err != nil {
LogError("Unable to parse value as either a Duration or a Time String: %v", err)
return errors.New("invalid duration string")
}
}
di.StartDelaySecs = int(duration.Seconds())
return nil
}
// Get necessary video info such as video/audio URLs
func (di *DownloadInfo) GetVideoInfo() bool {
di.Lock()
defer di.Unlock()
/*
No point retrieving information if we know it's not available, or there
is nothing useful to be gotten
*/
if di.GVideoDDL || di.Stopping || di.Unavailable {
return false
}
// Almost nothing we care about is likely to change in 15 seconds
delta := time.Since(di.LastUpdated)
if delta < (DefaultPollTime * time.Second) {
return false
}
retrieved, pr, selQaulities := di.GetPlayablePlayerResponse()
di.LastUpdated = time.Now()
if retrieved == PlayerResponseNotFound {
di.Live = false
di.Unavailable = true
return false
} else if retrieved == PlayerResponseNotUsable {
return false
}
streamData := pr.StreamingData
pmfr := pr.Microformat.PlayerMicroformatRenderer
isLive := pmfr.LiveBroadcastDetails.IsLiveNow
targetDur := int(streamData.AdaptiveFormats[0].TargetDurationSec)
if targetDur > 0 {
di.TargetDuration = targetDur
}
dlUrls := di.GetDownloadUrls(pr)
if len(dlUrls) == 0 {
LogError("No download URLs found")
return false
}
if di.Quality < 0 {
var qualities []string
qualities = append(qualities, "audio_only")
found := false
for _, qlabel := range VideoQualities {
videoItag := VideoLabelItags[qlabel]
_, vp9Ok := dlUrls[videoItag.VP9]
_, h264Ok := dlUrls[videoItag.H264]
if Contains(qualities, qlabel) || (!vp9Ok && !h264Ok) {
continue
}
qualities = append(qualities, qlabel)
}
for !found {
if len(selQaulities) == 0 {
selQaulities = GetQualityFromUser(qualities, false)
}
for _, q := range selQaulities {
q = strings.TrimSpace(q)
if q == "best" {
q = qualities[len(qualities)-1]
} else if q == "audio" {
q = "audio_only"
}
videoItag := VideoLabelItags[q]
aonly := videoItag.VP9 == AudioOnlyQuality
if !di.VideoOnly {
di.SetDownloadUrl(DtypeAudio, dlUrls[AudioItag])
}
if aonly {
di.Quality = AudioOnlyQuality
di.SetDownloadUrl(DtypeVideo, "")
found = true
break
}
_, vp9Ok := dlUrls[videoItag.VP9]
_, h264Ok := dlUrls[videoItag.H264]
if vp9Ok && (di.VP9 || !h264Ok) && !di.H264 { // Sometimes a quality is VP9 only apparently
di.SetDownloadUrl(DtypeVideo, dlUrls[videoItag.VP9])
di.Quality = videoItag.VP9
found = true
LogGeneral("Selected quality: %s (VP9)\n", q)
break
} else if h264Ok {
di.SetDownloadUrl(DtypeVideo, dlUrls[videoItag.H264])
di.Quality = videoItag.H264
found = true
LogGeneral("Selected quality: %s (h264)\n", q)
break
}
}
/*
None of the qualities the user gave were available
Should only be possible if they chose to wait for a stream
and chose only qualities that the streamer ended up not using
i.e. 1080p60/720p60 when the stream is only available in 30 FPS
*/
if !found {
LogGeneral("The qualities you selected ended up unavailable for this stream")
LogGeneral("You will now have the option to select from the available qualities")
selQaulities = selQaulities[len(selQaulities):]
}
}
} else {
aonly := di.Quality == AudioOnlyQuality
_, audioOk := dlUrls[AudioItag]
if !di.VideoOnly && audioOk && IsFragmented(dlUrls[AudioItag]) {
di.SetDownloadUrl(DtypeAudio, dlUrls[AudioItag])
}
if !aonly {
_, vidOk := dlUrls[di.Quality]
if vidOk && IsFragmented(dlUrls[di.Quality]) {
di.SetDownloadUrl(DtypeVideo, dlUrls[di.Quality])
}
}
}
if !di.InProgress {
LogGeneral("Stream started at time %s", pmfr.LiveBroadcastDetails.StartTimestamp)
di.FormatInfo.SetInfo(pr)
di.Metadata.SetInfo(di.FormatInfo)
if len(pmfr.Thumbnail.Thumbnails) > 0 {
di.Thumbnail = pmfr.Thumbnail.Thumbnails[0].URL
}
di.InProgress = true
}
di.Live = isLive
return true
}
func (di *DownloadInfo) WaitForStartDelay() bool {
if di.Live && di.StartDelaySecs > 0 {
fragDur := float64(di.TargetDuration)
secondsRoundedToFragLength := int(math.Ceil(float64(di.StartDelaySecs)/fragDur) * fragDur) // Rounds up to next frag interval time
noOfFragsToSkip := secondsRoundedToFragLength / di.TargetDuration
di.LiveFromSq = di.LastSq + noOfFragsToSkip
LogGeneral("Waiting %s before starting to download...", SecondsToDurationAndTimeStr(secondsRoundedToFragLength))
LogDebug("Will start from sequence %d [current is %d]", di.LiveFromSq, di.LastSq)
time.Sleep(time.Duration(secondsRoundedToFragLength) * time.Second) // Waits for the specified length of time.
if secondsRoundedToFragLength > DefaultPollTime {
return di.GetVideoInfo() // Re-grab video information.
}
}
return true
}
func (di *DownloadInfo) downloadFragment(state *fragThreadState, dataChan chan<- *Fragment) {
state.Tries = 0
state.FullRetries = 3
state.Is403 = false
fname := fmt.Sprintf("%s.frag%d.ts", state.BaseFilePath, state.SeqNum)
for state.Tries < int(di.FragMaxTries) || di.FragMaxTries == 0 {
if di.IsStopping() {
return
}
if di.FragMaxTries == 0 {
state.Tries = 0 // just in case someone actually somehow lets something run long enough to cause an overflow
}
baseUrl := di.GetDownloadUrl(state.DataType)
seqUrl := fmt.Sprintf(baseUrl, state.SeqNum)
req, err := http.NewRequest("GET", seqUrl, nil)
if err != nil {
LogDebug("%s: error creating request: %s", state.Name, err.Error())
}
var resp *http.Response
dlStart := time.Now()
if req != nil {
host := di.GetDownloadUrlHost(state.DataType)
if len(host) > 0 {
req.Header.Add("Host", host)
req.Header.Add("Referer", fmt.Sprintf("https://%s/", host))
}
req.Header.Add("User-Agent", "Mozilla/5.0 (X11; Linux x86_64; rv:87.0) Gecko/20100101 Firefox/87.0")