support Live stream with alternative audio

[ohmercy]

Live stream with alternative audio stops in the demo player, mostly within 1 min. Even without switching tracks.
http://dailymotion.github.io/hls.js/demo/?src=http%3A%2F%2Fhls-origin01-bruno01.cdn01.rambla.be%2Fadliveorigin-bruno01%2F_definst_%2Fv-alternative.smil%2Fplaylist.m3u8&enableStreaming=true&autoRecoverError=true&enableWorker=true&levelCapping=-1&defaultAudioCodec=undefined

While the same stream without alternative tracks keeps on playing.
http://dailymotion.github.io/hls.js/demo/?src=http%3A%2F%2Fhls-origin01-bruno01.cdn01.rambla.be%2Fadliveorigin-bruno01%2F_definst_%2Fav-single.smil%2Fplaylist.m3u8&enableStreaming=true&autoRecoverError=true&enableWorker=true&levelCapping=-1&defaultAudioCodec=undefined

Tested on Firefox OSX and Chrome OSX and Android

[mangui]

indeed, live stream + alt audio is not supported yet
related to https://github.com/dailymotion/hls.js/issues/30

[ohmercy]

OK thanks.

If you would need a test stream, let me know.

[Palethorn]

We are currently testing HLS live stream with alternate audio with this plugin. Any ETA on this?
Thanks.

[mangui]

an ongoing effort here : https://github.com/dailymotion/hls.js/pull/727

[mangui]

feature merged, and testable on demo page, feedback welcome

[mangui]

implemented