m3u8.DecodeFrom create playlistMedia with 1024 Segments

[vany-egorov]

https://github.com/grafov/m3u8/blob/master/reader.go#L151

I have mediaPlaylistFile with 1203 segments (c_00000000.ts - c_00001202.ts).
But when I do: m3u8.DecodeFrom I got len(playlistMedia.Segments) == 1024!:

playlistFile, _ := os.Open(pathToMediaPlaylistFile)
defer playlistFile.Close()
playlist, listType, _ = m3u8.DecodeFrom(bufio.NewReader(playlistFile), true)
switch listType {
case m3u8.MEDIA:
    playlistMedia := playlist.(*m3u8.MediaPlaylist)
    fmt.Printf("%d\n", len(playlistMedia.Segments))
}

How can I iterate over more than 1024 segments?
How can I get total duration?
How can I get full URI slice?

[iivarih]

This really is an issue...

Also len(Segments) == 1024 when you only have 3 segments... so in for-range loop you need to check nil values...

[matt-hensley]

MediaPlaylist.Segments is a slice. DecodeFrom auto-initializes the slice to a length of 1024: https://github.com/grafov/m3u8/blob/master/reader.go#L154

Instead use MediaPlaylist.Count method to get the current number of segments in the playlist. See https://github.com/grafov/m3u8/blob/master/writer.go#L504

[chobits]

I have the same question.
There are head, tail and count private fields of MediaPlaylist structure, but only count field is exported via MediaPlaylist.Count() method.

[bradleyfalzon]

If there's additional APIs people want, let me know and I should be able to implement. We've had similar requirements, but using .Count() methods has been fine for us (if the issue is only len(Segments)).

[bradleyfalzon]

#70 adds the ability for playlist to auto extend beyond 1024 segments and exposes winsize.