Alternative audio with main with audio not working

[sergiojm]

Environment

• The stream has correct Access-Control-Allow-Origin headers (CORS)
• There are no network errors such as 404s in the browser console when trying to play the stream
• The issue observed is not already reported by searching on Github under https://github.com/dailymotion/hls.js/issues
• The issue occurs in the latest reference client on http://dailymotion.github.io/hls.js/demo and not just on my page
• Hls.js version: 0.6.6
• Browser name/version: all
• OS name/version: all

1. Manifest with original audio(from the video itself) with alternative audio tracks.
2. Change to a alternative track
3. seek to a non buffered position

Now you can hear for a glip the alternative audio track and then falls back to original audio.

Impacts VOD and live with alternative audio and main with audio. Not happen when audio is only available on alternative audio tracks.

[sergiojm]

this.audioTrackType on onFragParsingData is undefined

[sergiojm]

My first commit here probably didn't linked correctly the pull request :)

pull request: https://github.com/dailymotion/hls.js/pull/765

[mangui]

indeed, regression from sergiojm@3f55cb6
your fix is correct, merging