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Timothy Drews
689c2a47aa
Use 'keystatuseschange' events from EME together with cenc:default_KID from the MPD so StreamVideoSource can determine if the key system can/will decrypt a stream before it attempts to play it. This enables the Player to safely (and automatically) switch between streams that are encrypted with different keys. Support AdaptationSet @group, which is the preferred approach to safely use multiple encryption keys over multiple Representations. * Squash AdaptationSets from the same group into one StreamSetInfo. This enables support for @group without introducing special case code into StreamVideoSource and EmeManager. * Fire 'trackchanged' events when tracks becomes available/unavailable either from application restrictions or key status changes. * Pull key IDs out of DrmInfo and put them into StreamInfo so key status changes can drive per stream availability instead of per StreamSet (AdaptationSet) availability. Closes #67 Issue #160 Change-Id: Ife0814deb65715923a572b45880137a99b378035