First, I would like to thank you for this cool project.
I have some troubles making it work properly, I would really appreciate your help :smile:
I am downloading a playlist of tracks, and I am trying to display multiple bars for each track but I am having some issues since the download size isn't known as I am streaming a m3u8 track and downloading segments into one file as follows :
func Download(track DownloadTrack, dlpath string, prog *mpb.Progress) string {
// validation ...
// ...
// check if the track is hls
if track.Quality != "low" {
// downloading the m3u8 file to extract the segments
resp, err := http.Get(track.Url)
if err != nil {
return ""
}
defer resp.Body.Close()
segments := getSegments(resp.Body)
DownloadM3u8(path, prog, segments)
return path
}
// more code
// ...
}
and I am using concurrency to download multiple tracks :
var wg sync.WaitGroup
plDownloadTracks := getPlaylistDownloadTracks(soundData, clientId)
p := mpb.New(mpb.WithWaitGroup(&wg),
mpb.WithWidth(64),
mpb.WithRefreshRate(180*time.Millisecond),
)
for _, dlT := range plDownloadTracks {
wg.Add(1)
go func(dlT []soundcloud.DownloadTrack) {
defer wg.Done()
t := getTrack(dlT, true)
fp := soundcloud.Download(t, downloadPath, p)
// silent indication of already existing files
if fp == "" {
return
}
soundcloud.AddMetadata(t, fp)
}(dlT)
}
wg.Wait()
fmt.Printf("\n%s Playlist saved to : %s\n", theme.Green("[-]"), theme.Magenta(downloadPath))
return
what's interesting is the DownloadM3u8, I create a progressbar and start downloading segments:
// using the goroutine to download each segment concurrently and wait till all finished
func DownloadM3u8(filepath string, prog *mpb.Progress, segments []string) error {
file, _ := os.OpenFile(filepath, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0644)
var wg sync.WaitGroup
// I create a progressbar with 0 totalSize
dlbar := prog.AddBar(0,
mpb.PrependDecorators(
decor.CountersKibiByte("% .2f / % .2f"),
),
mpb.AppendDecorators(
decor.EwmaETA(decor.ET_STYLE_GO, 90),
decor.Name(" -- "),
decor.EwmaSpeed(decor.UnitKiB, "% .2f", 60),
),
)
for _, segment := range segments {
wg.Add(1)
downloadSeg(&wg, segment, file, dlbar)
}
return nil
}
in the downloadSeg function I am copying the data to the file and incrementing the bar :
the problem with dlbar.SetTotal() is doesn't reach 100% also when using ProxyReader it displays wrong final files sizes.
Here the sizes are right but no speed indication.
when swapping the 2 lines IncrInt64 with SetTotal it reaches 100% in no time.
also adding prog.Wait() hangs the program after finishing.
sorry If I am making it complicated, I am a beginner in go.
First, I would like to thank you for this cool project. I have some troubles making it work properly, I would really appreciate your help :smile:
I am downloading a playlist of tracks, and I am trying to display multiple bars for each track but I am having some issues since the download size isn't known as I am streaming a
m3u8
track and downloading segments into one file as follows :and I am using concurrency to download multiple tracks :
what's interesting is the
DownloadM3u8
, I create a progressbar and start downloading segments:in the
downloadSeg
function I am copying the data to the file and incrementing the bar :the problem with
dlbar.SetTotal()
is doesn't reach 100% also when using ProxyReader it displays wrong final files sizes. Here the sizes are right but no speed indication.when swapping the 2 lines
IncrInt64
withSetTotal
it reaches 100% in no time. also addingprog.Wait()
hangs the program after finishing.sorry If I am making it complicated, I am a beginner in go.