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What are Netflix's requirements for right-to-left (RTL) language timed text?


We have two specific requirements for right-to-left (RTL) language timed text deliveries:

  • We do not accept EBU STL files for RTL languages. Please only deliver TTML for Arabic, Hebrew, etc.
  • If authored as RTL, all TTML files must explicitly call out RTL in either:
    • writingMode in <region>
    • tts:direction in <p> or <span> for every event
    • tts:direction in <style>, when referenced by <p> or <span> for every event

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