feat: expose CEA708 window position in the cue's region #5924
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CEA708 captions have positioning data available in their windows. However, this isn't currently translated and exposed by shaka though it is parsed from the bitstream. Translates the windows into WebVTT regions and uses the mappings outlined https://dvcs.w3.org/hg/text-tracks/raw-file/default/608toVTT/608toVTT.html#positioning-in-cea-708 This is also partially implements shaka-project#2583.
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Incremental code coverage: 79.45% |
avelad
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type: enhancement
theodab
approved these changes
Nov 23, 2023
gkatsev
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Nov 27, 2023
With shaka-project#5924, 708 windows were exposed as Cue regions. Since the region ID was getting set now, the UITextDisplayer was trying to position the regions but it doesn't properly support LINES units. This PR skips positioning the region if the values are in LINES units until that can be properly implemented.
gkatsev
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to sky-hugolima/shaka-player-contrib
that referenced
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Nov 27, 2023
With shaka-project#5924, 708 windows were exposed as Cue regions. Since the region ID was getting set now, the UITextDisplayer was trying to position the regions but it doesn't properly support LINES units. This PR skips positioning the region if the values are in LINES units until that can be properly implemented.
Robloche
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Nov 30, 2023
…t#5924) CEA708 captions have positioning data available in their windows. However, this isn't currently translated and exposed by shaka though it is parsed from the bitstream. Translates the windows into WebVTT regions and uses the mappings outlined https://dvcs.w3.org/hg/text-tracks/raw-file/default/608toVTT/608toVTT.html#positioning-in-cea-708 This is also partially implements shaka-project#2583.
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CEA708 captions have positioning data available in their windows. However, this isn't currently translated and exposed by shaka though it is parsed from the bitstream.
Translates the windows into WebVTT regions and uses the mappings outlined https://dvcs.w3.org/hg/text-tracks/raw-file/default/608toVTT/608toVTT.html#positioning-in-cea-708
This is also partially implements #2583.