alt.hn

3/17/2026 at 4:39:30 PM

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

https://connollydavid.github.io/pgs-release/

by slartibardfast0

3/21/2026 at 2:50:59 PM

Open since 2014? No? It was opened in 2014 and closed as fixed in 2014.

by KomoD

3/21/2026 at 2:56:30 PM

mm, text to bitmap or vice-verse isn't there though is it?

edit: plus the blu-ray subtitle encoder itself is new...

by slartibardfast0

3/21/2026 at 3:06:27 PM

The fact that there is no newer bug ticket for it in 12 years shows is this a purely academic feature nobody wanted.

And why should they? Most Blu-ray players support the old format (SRT); converting it to PGS gains almost none of the upsides of the newer format (screen placement).

by gjsman-1000

3/21/2026 at 3:26:05 PM

certainly fades / karaoke style subtitles from Advanced SubStation Alpha on blu-ray devices aren't everyone's cup of tea.

but i do enjoy antialiased blu-ray subtitles of course YMMV :)

by slartibardfast0

3/21/2026 at 2:18:00 PM

If you do open PRs at code.ffmpeg.org, remember to disclose and describe the AI contribution. You will also need to add FATE tests.

by gyan

3/21/2026 at 2:39:12 PM

oh yes, every commit is fully open about Claude Code + the model.

honestly, it would've taken me about 2 years to do this otherwise.

there are many FATE tests added and a lot more to add when the hardware verification bits i'm planning are done.

edit: do you know if upstream have ever taken an AI assisted commit? i've not seen anything yet and would hate to be controversial or a burden on hardworking reviewers!

by slartibardfast0

3/21/2026 at 3:01:20 PM

[dead]

by genie3io