Hi everyone, I've picked up the implementation of bug 744896 to support multi-tracks media sources from DTV. https://bugzilla.mozilla.org/show_bug.cgi?id=744896
Although the Tuner API is till in draft, it is pretty solid that the source of a tuner would be MediaStream. http://airpingu.github.io/tv-tuner-api/index.html#idl-def-TVTuner The problem is that the mapping of AudioStreamTrack to AudioTrack is not one-on-one, for example: An audio track has: interface AudioTrack { readonly attribute DOMString id; readonly attribute DOMString kind; --> "alternative", "descriptions", "main" readonly attribute DOMString label; --> more like free string for users(resource) to define readonly attribute DOMString language; --> "eng", "fra" attribute boolean enabled; }; For AudioTrack.kind() http://www.w3.org/TR/html5/embedded-content-0.html#dom-audiotrack-kind For AudioTrack.language() http://www.w3.org/TR/html5/embedded-content-0.html#dom-audiotrack-language An audio stream track has: interface MediaStreamTrack : EventTarget { readonly attribute DOMString kind; --> "audio" or "video" readonly attribute DOMString id; readonly attribute DOMString label; --> Same as the label in audio track attribute boolean enabled; readonly attribute boolean muted; Should I use Constraints to setup the information when constructing a stream track? http://dev.w3.org/2011/webrtc/editor/getusermedia.html#tracks-and-constraints Or, if this mapping will not reveal to js anyway, is it okay to just implement the mapping internally? Say the label attribute of MediaStreamTrack contains a field of "kind" and a field of "language", so that we can parse them out at constructing an audio track from media stream. Cheers, Shelly _______________________________________________ dev-media mailing list [email protected] https://lists.mozilla.org/listinfo/dev-media
