#cea608 — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #cea608, aggregated by home.social.
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There are five subtitle data processing paths in the video machine:
1. Analog: CEA-608 is read from the tape, decoded by a custom decoder, put on screen via custom renderer
2. Analog H/W: all decoding is done by the capture card, the subtitle graphics are inserted into the video output
3. Hybrid: subtitles read from SRT file, synchronized to the VCR timecode, put on screen via same custom renderer as Analog mode
4. Encoding: subtitles read from SRT file, synchronized to VCR timecode or digital player timecode, converted to CEA-608 and emitted via subtitle encoder. Subtitles end up on line 21 this way (they may then end up in the Analog path)
5. Digital: SRT is loaded by the digital player (MPV) and is rendered by the same. Digital-native subtitles completely bypass video machine - they just get baked onto the video output which is then shown to everyone.
Today I finished up more work on the digital subtitle path, but more on it in a moment...
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If you find yourself looking for the #CEA608 #EIA608 #CTA608 #ClosedCaptions and #VChip standard on a cold winter's day... don't pay ANSI $200 for it. It's downloadable for free from the CTA:
https://shop.cta.tech/products/line-21-data-services
Add to cart, check out, fill in your details, receive PDF. -
If you find yourself looking for the #CEA608 #EIA608 #CTA608 #ClosedCaptions and #VChip standard on a cold winter's day... don't pay ANSI $200 for it. It's downloadable for free from the CTA:
https://shop.cta.tech/products/line-21-data-services
Add to cart, check out, fill in your details, receive PDF.