olly ab9e3bac46 Introduce HlsTrackSelector.
This is equivalent to DashTrackSelector and SmoothStreamingTrackSelector.
This is a step toward allowing HlsChunkSource to expose multiple tracks,
which is a requirement for supporting WebVtt.

This change also enables WebVtt extractor instantiation.

Issue: #151
Issue: #676
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=111698833
2016-01-14 17:08:25 +00:00
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2016-01-14 17:08:25 +00:00
2015-12-08 18:00:46 +00:00