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video - How are closed captions (CEA-608) included in ProRes 422 HQ?

in Technique[技术] by (71.8m points)

I want to know, how to manually burn subtitles in ProRes 422 HQ. For example, CEA-608 in AVC(H.264) are presented as SEI units of NAL. What about Apple ProRes 422? I didn't find any info.

question from:https://stackoverflow.com/questions/65660886/how-are-closed-captions-cea-608-included-in-prores-422-hq

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