This change fixes tests on Chromecast by loading tests later in the process. Test scripts are now dynamically inserted by boot.js, rather than loaded by Karma. The bootstrapping code then awaits the completion of that before starting the Karma frameworks (Jasmine) to run the tests.
This also removes the use of goog.provide/goog.require in tests and test utils. We don't need to load test utils or library sources dynamically in each test, and this gives us more explicit control over script loading and ordering.
Closes#4094
This pertains to #2648 (although this is a new feature, not a replacement) and #1404. A CEA-708 decoder that follows the CEA-708-E standard, decodes closed caption data from User Data Registered by Rec. ITU-T T.35 SEI messages, and returns them as cues in Shaka's internal cue format. Furthermore, this pull request fixes and cements some of the logic surrounding CEA-608 and CEA-708 tag parsing on the Dash Manifest Parser.
Format:
Similar to the CEA-608 decoder, cues are emitted in Shaka's internal format (lib/text/cue.js). This decoder makes use of nested cues. The top level cue is always a blank cue with no text, and each nested cue inside it contains text, as well as a specific style, or linebreak cues to facilitate line breaks. This also allows for inline style (color, italics, underline) changes.
Details:
- ASCII (G0), Latin-1 (G1), and CEA-708 specific charsets (G2 and G3) all supported.
- Underlines, colors, and Italics supported, set as a property on each nested cue.
- Positioning of text is supported. (Exception: In CEA-708 the default positioning is left, in this decoder it is centered.)
- Positioning of windows not supported, but relevant fields that could be used to support this are extracted and left as a TODO.
This replaces mux.js for CEA608 decoding. Applications will no longer need to include mux.js for CEA support, and mux.js will only be necessary for TS transmuxing.
Closes#2648
Joey Parrish
Joey Parrish
michellezhuo
Muhammad Haris