I fixed FFmpeg's subtitle conversion (the bug from 2014)

Show HN: I fixed FFmpeg's subtitle conversion (the bug from 2014)

I fixed FFmpeg's subtitle conversion (the bug from 2014) is a business in show hn launch.

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FFmpeg converts everything except subtitles across format boundaries. SRT to Blu-ray PGS? "Subtitle encoding currently only possible from text to text or bitmap to bitmap." Ticket #3819, filed 2014.I built this with Claude Code over a few weeks. Claude wrote most of the encoder, found an integer overflow in the decoder buffer tracking, and ran review from five angles. I read the Panasonic and Sony patents, made the architectural calls, and told it when it was wrong about the spec. We argued about whether DTS computation belongs in the muxer. (It does, and also in fftools. We did both.)Animation is an interesting problem. Advanced SubStation Alpha fades have to survive conversion to Blu-ray's

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Website: connollydavid.github.io/pgs-release