Duration equals to -1

[Idsa]

libvlc_media_get_duration return -1. But if I play the file using VlcPlayer it's duration is shown okay. Is there any way to get file duration without playing it?

[ivoire]

This is due to the fact that the item is not parsed by default.
You can for libvlc to parse it with libvlc_media_parse or libvlc_media_parse_async (asynchronous call). You can check if a media is parsed with libvlc_media_is_parsed.